./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/array-crafted/mapavg5.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a0165632 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15374cf9-1b19-4c77-a853-fbe024cd13a5/bin/utaipan-verify-YMUCfTKeje/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15374cf9-1b19-4c77-a853-fbe024cd13a5/bin/utaipan-verify-YMUCfTKeje/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15374cf9-1b19-4c77-a853-fbe024cd13a5/bin/utaipan-verify-YMUCfTKeje/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15374cf9-1b19-4c77-a853-fbe024cd13a5/bin/utaipan-verify-YMUCfTKeje/config/TaipanReach.xml -i ../../sv-benchmarks/c/array-crafted/mapavg5.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15374cf9-1b19-4c77-a853-fbe024cd13a5/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15374cf9-1b19-4c77-a853-fbe024cd13a5/bin/utaipan-verify-YMUCfTKeje --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 407fcf7d2eac351408fa4d5f2ec0e8445116bd56ec588be775b50f5c012c0e01 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-09 05:27:20,712 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 05:27:20,808 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15374cf9-1b19-4c77-a853-fbe024cd13a5/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Reach-32bit-Taipan_Default.epf [2024-11-09 05:27:20,815 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 05:27:20,817 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 05:27:20,852 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 05:27:20,853 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 05:27:20,854 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 05:27:20,855 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 05:27:20,856 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 05:27:20,858 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-09 05:27:20,858 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-09 05:27:20,859 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-09 05:27:20,859 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-09 05:27:20,859 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-09 05:27:20,860 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-09 05:27:20,860 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-09 05:27:20,860 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-09 05:27:20,861 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-09 05:27:20,865 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-09 05:27:20,865 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-09 05:27:20,866 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-09 05:27:20,867 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 05:27:20,867 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 05:27:20,867 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 05:27:20,867 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 05:27:20,868 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 05:27:20,868 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 05:27:20,868 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 05:27:20,868 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 05:27:20,869 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 05:27:20,869 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 05:27:20,869 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 05:27:20,869 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 05:27:20,870 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 05:27:20,874 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 05:27:20,874 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 05:27:20,875 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 05:27:20,875 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 05:27:20,875 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 05:27:20,876 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 05:27:20,877 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 05:27:20,877 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-09 05:27:20,877 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 05:27:20,878 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 05:27:20,878 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-09 05:27:20,878 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 05:27:20,878 INFO L153 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15374cf9-1b19-4c77-a853-fbe024cd13a5/bin/utaipan-verify-YMUCfTKeje/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15374cf9-1b19-4c77-a853-fbe024cd13a5/bin/utaipan-verify-YMUCfTKeje Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 407fcf7d2eac351408fa4d5f2ec0e8445116bd56ec588be775b50f5c012c0e01 [2024-11-09 05:27:21,147 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 05:27:21,182 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 05:27:21,185 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 05:27:21,186 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 05:27:21,188 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 05:27:21,189 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15374cf9-1b19-4c77-a853-fbe024cd13a5/bin/utaipan-verify-YMUCfTKeje/../../sv-benchmarks/c/array-crafted/mapavg5.i Unable to find full path for "g++" [2024-11-09 05:27:23,228 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 05:27:23,420 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 05:27:23,420 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15374cf9-1b19-4c77-a853-fbe024cd13a5/sv-benchmarks/c/array-crafted/mapavg5.i [2024-11-09 05:27:23,427 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15374cf9-1b19-4c77-a853-fbe024cd13a5/bin/utaipan-verify-YMUCfTKeje/data/7e8cc9fc3/b1dcf2d076fb49d488cc45aa477c473a/FLAGfd587e278 [2024-11-09 05:27:23,804 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15374cf9-1b19-4c77-a853-fbe024cd13a5/bin/utaipan-verify-YMUCfTKeje/data/7e8cc9fc3/b1dcf2d076fb49d488cc45aa477c473a [2024-11-09 05:27:23,806 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 05:27:23,807 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 05:27:23,809 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 05:27:23,809 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 05:27:23,814 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 05:27:23,815 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 05:27:23" (1/1) ... [2024-11-09 05:27:23,816 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1c9e8622 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:27:23, skipping insertion in model container [2024-11-09 05:27:23,816 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 05:27:23" (1/1) ... [2024-11-09 05:27:23,839 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 05:27:24,061 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_15374cf9-1b19-4c77-a853-fbe024cd13a5/sv-benchmarks/c/array-crafted/mapavg5.i[1383,1396] [2024-11-09 05:27:24,065 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 05:27:24,073 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 05:27:24,092 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_15374cf9-1b19-4c77-a853-fbe024cd13a5/sv-benchmarks/c/array-crafted/mapavg5.i[1383,1396] [2024-11-09 05:27:24,094 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 05:27:24,117 INFO L204 MainTranslator]: Completed translation [2024-11-09 05:27:24,118 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:27:24 WrapperNode [2024-11-09 05:27:24,118 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 05:27:24,119 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 05:27:24,119 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 05:27:24,120 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 05:27:24,126 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:27:24" (1/1) ... [2024-11-09 05:27:24,133 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:27:24" (1/1) ... [2024-11-09 05:27:24,149 INFO L138 Inliner]: procedures = 16, calls = 21, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 72 [2024-11-09 05:27:24,150 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 05:27:24,150 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 05:27:24,151 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 05:27:24,151 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 05:27:24,158 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:27:24" (1/1) ... [2024-11-09 05:27:24,158 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:27:24" (1/1) ... [2024-11-09 05:27:24,161 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:27:24" (1/1) ... [2024-11-09 05:27:24,161 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:27:24" (1/1) ... [2024-11-09 05:27:24,167 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:27:24" (1/1) ... [2024-11-09 05:27:24,170 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:27:24" (1/1) ... [2024-11-09 05:27:24,171 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:27:24" (1/1) ... [2024-11-09 05:27:24,172 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:27:24" (1/1) ... [2024-11-09 05:27:24,175 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 05:27:24,175 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 05:27:24,176 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 05:27:24,176 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 05:27:24,177 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:27:24" (1/1) ... [2024-11-09 05:27:24,184 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 05:27:24,193 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15374cf9-1b19-4c77-a853-fbe024cd13a5/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:27:24,208 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15374cf9-1b19-4c77-a853-fbe024cd13a5/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-09 05:27:24,212 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15374cf9-1b19-4c77-a853-fbe024cd13a5/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-09 05:27:24,243 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 05:27:24,243 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-09 05:27:24,243 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-09 05:27:24,244 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-09 05:27:24,244 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 05:27:24,244 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 05:27:24,244 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-09 05:27:24,244 INFO L130 BoogieDeclarations]: Found specification of procedure mapavg [2024-11-09 05:27:24,245 INFO L138 BoogieDeclarations]: Found implementation of procedure mapavg [2024-11-09 05:27:24,245 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-09 05:27:24,335 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 05:27:24,338 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 05:27:24,612 INFO L? ?]: Removed 17 outVars from TransFormulas that were not future-live. [2024-11-09 05:27:24,614 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 05:27:24,655 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 05:27:24,655 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-09 05:27:24,655 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 05:27:24 BoogieIcfgContainer [2024-11-09 05:27:24,656 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 05:27:24,661 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 05:27:24,664 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 05:27:24,668 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 05:27:24,668 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 05:27:23" (1/3) ... [2024-11-09 05:27:24,670 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f8e2724 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 05:27:24, skipping insertion in model container [2024-11-09 05:27:24,670 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:27:24" (2/3) ... [2024-11-09 05:27:24,671 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f8e2724 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 05:27:24, skipping insertion in model container [2024-11-09 05:27:24,671 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 05:27:24" (3/3) ... [2024-11-09 05:27:24,673 INFO L112 eAbstractionObserver]: Analyzing ICFG mapavg5.i [2024-11-09 05:27:24,692 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 05:27:24,692 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-09 05:27:24,771 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 05:27:24,780 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;@1c5f343d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 05:27:24,780 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-09 05:27:24,785 INFO L276 IsEmpty]: Start isEmpty. Operand has 25 states, 19 states have (on average 1.4736842105263157) internal successors, (28), 20 states have internal predecessors, (28), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-09 05:27:24,794 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2024-11-09 05:27:24,795 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:27:24,796 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:27:24,797 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 05:27:24,803 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:27:24,803 INFO L85 PathProgramCache]: Analyzing trace with hash 1079957002, now seen corresponding path program 1 times [2024-11-09 05:27:24,813 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:27:24,814 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [160285559] [2024-11-09 05:27:24,815 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:27:24,815 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:27:24,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:27:25,247 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-09 05:27:25,248 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:27:25,248 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [160285559] [2024-11-09 05:27:25,249 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [160285559] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:27:25,249 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:27:25,250 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 05:27:25,254 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1446481708] [2024-11-09 05:27:25,255 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:27:25,259 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 05:27:25,260 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:27:25,283 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 05:27:25,283 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 05:27:25,285 INFO L87 Difference]: Start difference. First operand has 25 states, 19 states have (on average 1.4736842105263157) internal successors, (28), 20 states have internal predecessors, (28), 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 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-09 05:27:25,364 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:27:25,364 INFO L93 Difference]: Finished difference Result 48 states and 65 transitions. [2024-11-09 05:27:25,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 05:27:25,367 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 26 [2024-11-09 05:27:25,368 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:27:25,375 INFO L225 Difference]: With dead ends: 48 [2024-11-09 05:27:25,375 INFO L226 Difference]: Without dead ends: 24 [2024-11-09 05:27:25,378 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 05:27:25,382 INFO L432 NwaCegarLoop]: 28 mSDtfsCounter, 1 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 42 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 05:27:25,383 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 42 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 05:27:25,399 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2024-11-09 05:27:25,418 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24. [2024-11-09 05:27:25,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 19 states have (on average 1.3157894736842106) internal successors, (25), 19 states have internal predecessors, (25), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-09 05:27:25,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 31 transitions. [2024-11-09 05:27:25,425 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 31 transitions. Word has length 26 [2024-11-09 05:27:25,425 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:27:25,425 INFO L471 AbstractCegarLoop]: Abstraction has 24 states and 31 transitions. [2024-11-09 05:27:25,427 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-09 05:27:25,427 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 31 transitions. [2024-11-09 05:27:25,429 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2024-11-09 05:27:25,429 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:27:25,429 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:27:25,429 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-09 05:27:25,430 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 05:27:25,430 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:27:25,430 INFO L85 PathProgramCache]: Analyzing trace with hash -153935441, now seen corresponding path program 1 times [2024-11-09 05:27:25,431 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:27:25,433 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [701711702] [2024-11-09 05:27:25,433 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:27:25,433 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:27:25,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:27:25,711 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-11-09 05:27:25,713 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:27:25,713 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [701711702] [2024-11-09 05:27:25,713 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [701711702] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 05:27:25,714 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [580391699] [2024-11-09 05:27:25,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:27:25,714 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:27:25,714 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15374cf9-1b19-4c77-a853-fbe024cd13a5/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:27:25,717 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15374cf9-1b19-4c77-a853-fbe024cd13a5/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:27:25,721 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15374cf9-1b19-4c77-a853-fbe024cd13a5/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-09 05:27:25,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:27:25,867 INFO L255 TraceCheckSpWp]: Trace formula consists of 134 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-09 05:27:25,878 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:27:25,986 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-09 05:27:25,988 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 05:27:26,065 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-09 05:27:26,069 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [580391699] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 05:27:26,069 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1844495043] [2024-11-09 05:27:26,097 INFO L159 IcfgInterpreter]: Started Sifa with 20 locations of interest [2024-11-09 05:27:26,098 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 05:27:26,103 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 05:27:26,109 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 05:27:26,110 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 05:27:26,803 INFO L197 IcfgInterpreter]: Interpreting procedure mapavg with input of size 14 for LOIs [2024-11-09 05:27:26,814 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 05:27:27,028 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [1844495043] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:27:27,029 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2024-11-09 05:27:27,029 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [5, 4, 4] total 15 [2024-11-09 05:27:27,030 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1851370113] [2024-11-09 05:27:27,030 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:27:27,033 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-09 05:27:27,033 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:27:27,034 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-09 05:27:27,035 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=166, Unknown=0, NotChecked=0, Total=210 [2024-11-09 05:27:27,036 INFO L87 Difference]: Start difference. First operand 24 states and 31 transitions. Second operand has 8 states, 8 states have (on average 2.0) internal successors, (16), 6 states have internal predecessors, (16), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-09 05:27:27,434 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:27:27,434 INFO L93 Difference]: Finished difference Result 42 states and 58 transitions. [2024-11-09 05:27:27,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-09 05:27:27,436 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.0) internal successors, (16), 6 states have internal predecessors, (16), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) Word has length 28 [2024-11-09 05:27:27,436 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:27:27,437 INFO L225 Difference]: With dead ends: 42 [2024-11-09 05:27:27,437 INFO L226 Difference]: Without dead ends: 26 [2024-11-09 05:27:27,437 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 74 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=70, Invalid=272, Unknown=0, NotChecked=0, Total=342 [2024-11-09 05:27:27,438 INFO L432 NwaCegarLoop]: 7 mSDtfsCounter, 39 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 79 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 14 SdHoareTripleChecker+Invalid, 96 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 79 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 05:27:27,440 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 14 Invalid, 96 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 79 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 05:27:27,441 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2024-11-09 05:27:27,450 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2024-11-09 05:27:27,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 21 states have (on average 1.2857142857142858) internal successors, (27), 21 states have internal predecessors, (27), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-09 05:27:27,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 33 transitions. [2024-11-09 05:27:27,453 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 33 transitions. Word has length 28 [2024-11-09 05:27:27,453 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:27:27,453 INFO L471 AbstractCegarLoop]: Abstraction has 26 states and 33 transitions. [2024-11-09 05:27:27,453 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 2.0) internal successors, (16), 6 states have internal predecessors, (16), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-09 05:27:27,453 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 33 transitions. [2024-11-09 05:27:27,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2024-11-09 05:27:27,456 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:27:27,456 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:27:27,479 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15374cf9-1b19-4c77-a853-fbe024cd13a5/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-09 05:27:27,662 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15374cf9-1b19-4c77-a853-fbe024cd13a5/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:27:27,662 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 05:27:27,663 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:27:27,663 INFO L85 PathProgramCache]: Analyzing trace with hash 699371966, now seen corresponding path program 1 times [2024-11-09 05:27:27,663 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:27:27,664 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1519304715] [2024-11-09 05:27:27,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:27:27,664 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:27:27,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:27:27,853 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-11-09 05:27:27,853 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:27:27,853 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1519304715] [2024-11-09 05:27:27,853 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1519304715] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:27:27,853 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:27:27,854 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 05:27:27,854 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [891827723] [2024-11-09 05:27:27,854 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:27:27,854 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 05:27:27,854 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:27:27,855 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 05:27:27,855 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-09 05:27:27,855 INFO L87 Difference]: Start difference. First operand 26 states and 33 transitions. Second operand has 4 states, 4 states have (on average 4.5) internal successors, (18), 4 states have internal predecessors, (18), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-09 05:27:27,919 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:27:27,919 INFO L93 Difference]: Finished difference Result 41 states and 51 transitions. [2024-11-09 05:27:27,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 05:27:27,920 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.5) internal successors, (18), 4 states have internal predecessors, (18), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 34 [2024-11-09 05:27:27,920 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:27:27,921 INFO L225 Difference]: With dead ends: 41 [2024-11-09 05:27:27,921 INFO L226 Difference]: Without dead ends: 28 [2024-11-09 05:27:27,921 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-09 05:27:27,922 INFO L432 NwaCegarLoop]: 14 mSDtfsCounter, 22 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 20 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 05:27:27,923 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 20 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 05:27:27,924 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2024-11-09 05:27:27,931 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2024-11-09 05:27:27,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 23 states have (on average 1.2608695652173914) internal successors, (29), 23 states have internal predecessors, (29), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-09 05:27:27,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 35 transitions. [2024-11-09 05:27:27,932 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 35 transitions. Word has length 34 [2024-11-09 05:27:27,934 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:27:27,934 INFO L471 AbstractCegarLoop]: Abstraction has 28 states and 35 transitions. [2024-11-09 05:27:27,934 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.5) internal successors, (18), 4 states have internal predecessors, (18), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-09 05:27:27,934 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 35 transitions. [2024-11-09 05:27:27,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2024-11-09 05:27:27,935 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:27:27,935 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:27:27,935 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-09 05:27:27,936 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 05:27:27,936 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:27:27,936 INFO L85 PathProgramCache]: Analyzing trace with hash 1886386499, now seen corresponding path program 1 times [2024-11-09 05:27:27,936 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:27:27,937 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1794821105] [2024-11-09 05:27:27,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:27:27,937 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:27:27,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:27:28,078 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-11-09 05:27:28,079 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:27:28,079 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1794821105] [2024-11-09 05:27:28,079 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1794821105] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 05:27:28,079 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [635309748] [2024-11-09 05:27:28,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:27:28,080 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:27:28,080 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15374cf9-1b19-4c77-a853-fbe024cd13a5/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:27:28,082 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15374cf9-1b19-4c77-a853-fbe024cd13a5/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:27:28,083 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15374cf9-1b19-4c77-a853-fbe024cd13a5/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-09 05:27:28,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:27:28,189 INFO L255 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-09 05:27:28,191 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:27:28,228 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-11-09 05:27:28,229 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 05:27:28,271 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-11-09 05:27:28,272 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [635309748] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 05:27:28,272 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1256634534] [2024-11-09 05:27:28,280 INFO L159 IcfgInterpreter]: Started Sifa with 22 locations of interest [2024-11-09 05:27:28,280 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 05:27:28,281 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 05:27:28,281 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 05:27:28,281 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 05:27:33,638 INFO L197 IcfgInterpreter]: Interpreting procedure mapavg with input of size 3 for LOIs [2024-11-09 05:27:33,925 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 05:28:03,846 WARN L286 SmtUtils]: Spent 20.69s on a formula simplification. DAG size of input: 109 DAG size of output: 62 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 05:28:38,501 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '726#(and (exists ((|v_ULTIMATE.start_main_~ret2~0#1_18| Int) (|v_ULTIMATE.start_main_~ret5~0#1_18| Int) (|v_ULTIMATE.start_main_~ret~1#1_18| Int)) (and (or (not (= |v_ULTIMATE.start_main_~ret~1#1_18| |v_ULTIMATE.start_main_~ret5~0#1_18|)) (not (= |v_ULTIMATE.start_main_~ret2~0#1_18| |v_ULTIMATE.start_main_~ret~1#1_18|))) (<= 0 (+ |v_ULTIMATE.start_main_~ret5~0#1_18| 2147483648)) (exists ((v_mapavg_~ret~0_36 Int) (v_mapavg_~i~0_35 Int)) (and (or (and (<= (+ v_mapavg_~ret~0_36 1) 0) (not (= (mod v_mapavg_~ret~0_36 ~N~0) 0)) (= (mod (+ (div v_mapavg_~ret~0_36 ~N~0) 1) 4294967296) (+ |v_ULTIMATE.start_main_~ret5~0#1_18| 4294967296))) (and (= |v_ULTIMATE.start_main_~ret5~0#1_18| (mod (div v_mapavg_~ret~0_36 ~N~0) 4294967296)) (or (< 0 (+ v_mapavg_~ret~0_36 1)) (= (mod v_mapavg_~ret~0_36 ~N~0) 0))) (and (or (< 0 (+ v_mapavg_~ret~0_36 1)) (= (mod v_mapavg_~ret~0_36 ~N~0) 0)) (= (mod (div v_mapavg_~ret~0_36 ~N~0) 4294967296) (+ |v_ULTIMATE.start_main_~ret5~0#1_18| 4294967296))) (and (<= (+ v_mapavg_~ret~0_36 1) 0) (not (= (mod v_mapavg_~ret~0_36 ~N~0) 0)) (= |v_ULTIMATE.start_main_~ret5~0#1_18| (mod (+ (div v_mapavg_~ret~0_36 ~N~0) 1) 4294967296)))) (= ~N~0 v_mapavg_~i~0_35))) (exists ((|v_#memory_int_34| (Array Int (Array Int Int)))) (= |#memory_int| (store |v_#memory_int_34| |ULTIMATE.start_main_~#x~0#1.base| (store (select |v_#memory_int_34| |ULTIMATE.start_main_~#x~0#1.base|) (+ (* ~N~0 4) (- 4)) (select (select |#memory_int| |ULTIMATE.start_main_~#x~0#1.base|) (+ (* ~N~0 4) (- 4))))))) (exists ((|v_ULTIMATE.start_main_~i~2#1_24| Int)) (and (<= ~N~0 (+ |v_ULTIMATE.start_main_~i~2#1_24| 1)) (<= 1 |#StackHeapBarrier|) (<= 0 (+ |v_ULTIMATE.start_main_~ret2~0#1_18| 2147483648)) (<= |v_ULTIMATE.start_main_~ret2~0#1_18| 2147483647) (<= ~N~0 2147483647) (<= |v_ULTIMATE.start_main_~ret~1#1_18| 2147483647) (<= 2 |ULTIMATE.start_main_~#x~0#1.base|) (<= 0 (+ |v_ULTIMATE.start_main_~ret~1#1_18| 2147483648)) (<= 2 ~N~0))) (<= |v_ULTIMATE.start_main_~ret5~0#1_18| 2147483647))) (= |ULTIMATE.start_main_~#x~0#1.offset| 0))' at error location [2024-11-09 05:28:38,501 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 05:28:38,501 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 05:28:38,501 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2024-11-09 05:28:38,501 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [743648167] [2024-11-09 05:28:38,502 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 05:28:38,502 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-09 05:28:38,502 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:28:38,503 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-09 05:28:38,503 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=85, Invalid=497, Unknown=18, NotChecked=0, Total=600 [2024-11-09 05:28:38,503 INFO L87 Difference]: Start difference. First operand 28 states and 35 transitions. Second operand has 7 states, 7 states have (on average 4.571428571428571) internal successors, (32), 7 states have internal predecessors, (32), 1 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2024-11-09 05:28:38,571 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:28:38,571 INFO L93 Difference]: Finished difference Result 52 states and 66 transitions. [2024-11-09 05:28:38,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 05:28:38,572 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 4.571428571428571) internal successors, (32), 7 states have internal predecessors, (32), 1 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) Word has length 36 [2024-11-09 05:28:38,572 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:28:38,573 INFO L225 Difference]: With dead ends: 52 [2024-11-09 05:28:38,573 INFO L226 Difference]: Without dead ends: 30 [2024-11-09 05:28:38,575 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 85 SyntacticMatches, 2 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 224 ImplicationChecksByTransitivity, 64.6s TimeCoverageRelationStatistics Valid=85, Invalid=497, Unknown=18, NotChecked=0, Total=600 [2024-11-09 05:28:38,576 INFO L432 NwaCegarLoop]: 24 mSDtfsCounter, 1 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 60 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 05:28:38,576 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 60 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 05:28:38,577 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2024-11-09 05:28:38,588 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 29. [2024-11-09 05:28:38,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 24 states have (on average 1.2083333333333333) internal successors, (29), 24 states have internal predecessors, (29), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-09 05:28:38,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 35 transitions. [2024-11-09 05:28:38,590 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 35 transitions. Word has length 36 [2024-11-09 05:28:38,591 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:28:38,591 INFO L471 AbstractCegarLoop]: Abstraction has 29 states and 35 transitions. [2024-11-09 05:28:38,591 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 4.571428571428571) internal successors, (32), 7 states have internal predecessors, (32), 1 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2024-11-09 05:28:38,591 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 35 transitions. [2024-11-09 05:28:38,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2024-11-09 05:28:38,593 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:28:38,593 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:28:38,613 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15374cf9-1b19-4c77-a853-fbe024cd13a5/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-09 05:28:38,794 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15374cf9-1b19-4c77-a853-fbe024cd13a5/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:28:38,794 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 05:28:38,795 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:28:38,795 INFO L85 PathProgramCache]: Analyzing trace with hash -1649821016, now seen corresponding path program 2 times [2024-11-09 05:28:38,795 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:28:38,795 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [685556881] [2024-11-09 05:28:38,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:28:38,795 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:28:38,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:28:38,941 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2024-11-09 05:28:38,943 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:28:38,943 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [685556881] [2024-11-09 05:28:38,943 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [685556881] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 05:28:38,944 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1193853577] [2024-11-09 05:28:38,944 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-09 05:28:38,944 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:28:38,944 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15374cf9-1b19-4c77-a853-fbe024cd13a5/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:28:38,947 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15374cf9-1b19-4c77-a853-fbe024cd13a5/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:28:38,949 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15374cf9-1b19-4c77-a853-fbe024cd13a5/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-09 05:28:39,037 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-11-09 05:28:39,037 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 05:28:39,039 INFO L255 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-09 05:28:39,041 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:28:39,141 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 14 proven. 1 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2024-11-09 05:28:39,142 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 05:28:39,268 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 14 proven. 1 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2024-11-09 05:28:39,269 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1193853577] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 05:28:39,269 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1034781931] [2024-11-09 05:28:39,271 INFO L159 IcfgInterpreter]: Started Sifa with 22 locations of interest [2024-11-09 05:28:39,271 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 05:28:39,275 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 05:28:39,275 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 05:28:39,275 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 05:28:46,818 INFO L197 IcfgInterpreter]: Interpreting procedure mapavg with input of size 3 for LOIs [2024-11-09 05:28:46,875 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 05:29:26,922 WARN L286 SmtUtils]: Spent 38.67s on a formula simplification. DAG size of input: 162 DAG size of output: 79 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 05:30:51,554 WARN L286 SmtUtils]: Spent 1.23m on a formula simplification. DAG size of input: 90 DAG size of output: 59 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 05:31:39,514 WARN L286 SmtUtils]: Spent 41.49s on a formula simplification. DAG size of input: 104 DAG size of output: 57 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 05:34:31,714 WARN L286 SmtUtils]: Spent 2.46m on a formula simplification. DAG size of input: 152 DAG size of output: 85 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 05:35:19,859 WARN L286 SmtUtils]: Spent 38.41s on a formula simplification. DAG size of input: 155 DAG size of output: 72 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 05:35:19,861 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '1090#(and (= |ULTIMATE.start_main_~#x~0#1.offset| 0) (exists ((|v_ULTIMATE.start_main_~ret~1#1_21| Int) (|v_ULTIMATE.start_main_~ret2~0#1_21| Int) (|v_ULTIMATE.start_main_~ret5~0#1_21| Int)) (and (<= |v_ULTIMATE.start_main_~ret5~0#1_21| 2147483647) (or (not (= |v_ULTIMATE.start_main_~ret2~0#1_21| |v_ULTIMATE.start_main_~ret~1#1_21|)) (not (= |v_ULTIMATE.start_main_~ret~1#1_21| |v_ULTIMATE.start_main_~ret5~0#1_21|))) (exists ((|v_ULTIMATE.start_main_~i~2#1_31| Int)) (and (<= 1 |#StackHeapBarrier|) (<= ~N~0 2147483647) (<= |v_ULTIMATE.start_main_~ret2~0#1_21| 2147483647) (<= |v_ULTIMATE.start_main_~ret~1#1_21| 2147483647) (<= ~N~0 (+ |v_ULTIMATE.start_main_~i~2#1_31| 1)) (<= 2 |ULTIMATE.start_main_~#x~0#1.base|) (<= 2 ~N~0) (<= 0 (+ |v_ULTIMATE.start_main_~ret~1#1_21| 2147483648)) (<= 0 (+ |v_ULTIMATE.start_main_~ret2~0#1_21| 2147483648)))) (exists ((v_mapavg_~ret~0_60 Int) (v_mapavg_~i~0_66 Int)) (and (= ~N~0 v_mapavg_~i~0_66) (or (and (or (< 0 (+ v_mapavg_~ret~0_60 1)) (= (mod v_mapavg_~ret~0_60 ~N~0) 0)) (= (mod (div v_mapavg_~ret~0_60 ~N~0) 4294967296) |v_ULTIMATE.start_main_~ret5~0#1_21|)) (and (= (+ |v_ULTIMATE.start_main_~ret5~0#1_21| 4294967296) (mod (+ (div v_mapavg_~ret~0_60 ~N~0) 1) 4294967296)) (<= (+ v_mapavg_~ret~0_60 1) 0) (not (= (mod v_mapavg_~ret~0_60 ~N~0) 0))) (and (= (mod (+ (div v_mapavg_~ret~0_60 ~N~0) 1) 4294967296) |v_ULTIMATE.start_main_~ret5~0#1_21|) (<= (+ v_mapavg_~ret~0_60 1) 0) (not (= (mod v_mapavg_~ret~0_60 ~N~0) 0))) (and (or (< 0 (+ v_mapavg_~ret~0_60 1)) (= (mod v_mapavg_~ret~0_60 ~N~0) 0)) (= (+ |v_ULTIMATE.start_main_~ret5~0#1_21| 4294967296) (mod (div v_mapavg_~ret~0_60 ~N~0) 4294967296)))))) (<= 0 (+ |v_ULTIMATE.start_main_~ret5~0#1_21| 2147483648)) (exists ((|v_#memory_int_48| (Array Int (Array Int Int)))) (= |#memory_int| (store |v_#memory_int_48| |ULTIMATE.start_main_~#x~0#1.base| (store (select |v_#memory_int_48| |ULTIMATE.start_main_~#x~0#1.base|) (+ (* ~N~0 4) (- 4)) (select (select |#memory_int| |ULTIMATE.start_main_~#x~0#1.base|) (+ (* ~N~0 4) (- 4))))))))))' at error location [2024-11-09 05:35:19,861 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 05:35:19,861 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 05:35:19,861 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 6] total 10 [2024-11-09 05:35:19,861 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1355245804] [2024-11-09 05:35:19,862 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 05:35:19,862 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-09 05:35:19,862 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:35:19,863 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-09 05:35:19,866 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=109, Invalid=624, Unknown=23, NotChecked=0, Total=756 [2024-11-09 05:35:19,866 INFO L87 Difference]: Start difference. First operand 29 states and 35 transitions. Second operand has 10 states, 10 states have (on average 4.5) internal successors, (45), 10 states have internal predecessors, (45), 2 states have call successors, (8), 2 states have call predecessors, (8), 4 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-09 05:35:20,114 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:35:20,115 INFO L93 Difference]: Finished difference Result 51 states and 66 transitions. [2024-11-09 05:35:20,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 05:35:20,116 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 4.5) internal successors, (45), 10 states have internal predecessors, (45), 2 states have call successors, (8), 2 states have call predecessors, (8), 4 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 38 [2024-11-09 05:35:20,116 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:35:20,117 INFO L225 Difference]: With dead ends: 51 [2024-11-09 05:35:20,117 INFO L226 Difference]: Without dead ends: 31 [2024-11-09 05:35:20,118 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 120 GetRequests, 88 SyntacticMatches, 4 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 281 ImplicationChecksByTransitivity, 393.1s TimeCoverageRelationStatistics Valid=125, Invalid=722, Unknown=23, NotChecked=0, Total=870 [2024-11-09 05:35:20,120 INFO L432 NwaCegarLoop]: 14 mSDtfsCounter, 6 mSDsluCounter, 44 mSDsCounter, 0 mSdLazyCounter, 126 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 58 SdHoareTripleChecker+Invalid, 129 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 126 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-09 05:35:20,123 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 58 Invalid, 129 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 126 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-09 05:35:20,124 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2024-11-09 05:35:20,131 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 30. [2024-11-09 05:35:20,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 25 states have (on average 1.16) internal successors, (29), 25 states have internal predecessors, (29), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-09 05:35:20,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 35 transitions. [2024-11-09 05:35:20,133 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 35 transitions. Word has length 38 [2024-11-09 05:35:20,134 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:35:20,134 INFO L471 AbstractCegarLoop]: Abstraction has 30 states and 35 transitions. [2024-11-09 05:35:20,134 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 4.5) internal successors, (45), 10 states have internal predecessors, (45), 2 states have call successors, (8), 2 states have call predecessors, (8), 4 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-09 05:35:20,135 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 35 transitions. [2024-11-09 05:35:20,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2024-11-09 05:35:20,136 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:35:20,136 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:35:20,164 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15374cf9-1b19-4c77-a853-fbe024cd13a5/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-09 05:35:20,337 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15374cf9-1b19-4c77-a853-fbe024cd13a5/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:35:20,338 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 05:35:20,338 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:35:20,338 INFO L85 PathProgramCache]: Analyzing trace with hash 1397480439, now seen corresponding path program 3 times [2024-11-09 05:35:20,338 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:35:20,339 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1812818123] [2024-11-09 05:35:20,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:35:20,339 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:35:20,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:35:37,883 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 3 proven. 44 refuted. 1 times theorem prover too weak. 17 trivial. 0 not checked. [2024-11-09 05:35:37,883 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:35:37,883 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1812818123] [2024-11-09 05:35:37,884 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1812818123] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 05:35:37,884 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2005401884] [2024-11-09 05:35:37,884 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-09 05:35:37,884 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:35:37,884 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15374cf9-1b19-4c77-a853-fbe024cd13a5/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:35:37,885 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15374cf9-1b19-4c77-a853-fbe024cd13a5/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:35:37,886 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15374cf9-1b19-4c77-a853-fbe024cd13a5/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-09 05:35:38,382 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-09 05:35:38,382 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 05:35:38,385 WARN L253 TraceCheckSpWp]: Trace formula consists of 188 conjuncts, 100 conjuncts are in the unsatisfiable core [2024-11-09 05:35:38,391 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:35:49,852 WARN L286 SmtUtils]: Spent 6.02s on a formula simplification that was a NOOP. DAG size: 17 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-09 05:35:55,865 WARN L286 SmtUtils]: Spent 6.01s on a formula simplification that was a NOOP. DAG size: 15 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-09 05:36:01,882 WARN L286 SmtUtils]: Spent 6.01s on a formula simplification that was a NOOP. DAG size: 14 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-09 05:36:11,909 WARN L286 SmtUtils]: Spent 6.02s on a formula simplification that was a NOOP. DAG size: 17 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-09 05:36:19,315 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 05:36:19,316 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 632 treesize of output 322 [2024-11-09 05:36:25,099 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 05:36:25,100 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 533 treesize of output 268 [2024-11-09 05:36:26,326 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 05:36:26,326 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 593 treesize of output 415 [2024-11-09 05:36:35,222 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 05:36:35,222 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 1114 treesize of output 554 [2024-11-09 05:36:49,726 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 10 proven. 39 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-11-09 05:36:49,727 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 05:38:39,192 WARN L286 SmtUtils]: Spent 16.69s on a formula simplification that was a NOOP. DAG size: 123 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 05:39:38,201 WARN L286 SmtUtils]: Spent 28.26s on a formula simplification. DAG size of input: 176 DAG size of output: 150 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 05:41:07,648 WARN L286 SmtUtils]: Spent 25.50s on a formula simplification. DAG size of input: 158 DAG size of output: 148 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)