./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/array-patterns/array11_pattern.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a0165632 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29faf2d7-82c3-4f79-9424-c87c6b40686d/bin/utaipan-verify-YMUCfTKeje/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29faf2d7-82c3-4f79-9424-c87c6b40686d/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_29faf2d7-82c3-4f79-9424-c87c6b40686d/bin/utaipan-verify-YMUCfTKeje/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29faf2d7-82c3-4f79-9424-c87c6b40686d/bin/utaipan-verify-YMUCfTKeje/config/TaipanReach.xml -i ../../sv-benchmarks/c/array-patterns/array11_pattern.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29faf2d7-82c3-4f79-9424-c87c6b40686d/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_29faf2d7-82c3-4f79-9424-c87c6b40686d/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 c3ac08a3f6fb5579b9b2ae158efc8988dd3312e617d74223198803ffe0b335cb --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-09 05:00:59,160 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 05:00:59,267 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29faf2d7-82c3-4f79-9424-c87c6b40686d/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Reach-32bit-Taipan_Default.epf [2024-11-09 05:00:59,271 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 05:00:59,272 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 05:00:59,307 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 05:00:59,310 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 05:00:59,311 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 05:00:59,312 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 05:00:59,312 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 05:00:59,314 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-09 05:00:59,314 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-09 05:00:59,315 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-09 05:00:59,315 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-09 05:00:59,315 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-09 05:00:59,316 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-09 05:00:59,316 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-09 05:00:59,316 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-09 05:00:59,317 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-09 05:00:59,317 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-09 05:00:59,318 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-09 05:00:59,318 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-09 05:00:59,323 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 05:00:59,323 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 05:00:59,323 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 05:00:59,324 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 05:00:59,324 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 05:00:59,332 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 05:00:59,332 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 05:00:59,333 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 05:00:59,333 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 05:00:59,333 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 05:00:59,334 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 05:00:59,334 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 05:00:59,334 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 05:00:59,335 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 05:00:59,335 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 05:00:59,335 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 05:00:59,337 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 05:00:59,337 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 05:00:59,337 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 05:00:59,338 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 05:00:59,339 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-09 05:00:59,339 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 05:00:59,339 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 05:00:59,340 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-09 05:00:59,340 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 05:00:59,340 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_29faf2d7-82c3-4f79-9424-c87c6b40686d/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29faf2d7-82c3-4f79-9424-c87c6b40686d/bin/utaipan-verify-YMUCfTKeje Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c3ac08a3f6fb5579b9b2ae158efc8988dd3312e617d74223198803ffe0b335cb [2024-11-09 05:00:59,626 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 05:00:59,654 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 05:00:59,657 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 05:00:59,659 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 05:00:59,659 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 05:00:59,661 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29faf2d7-82c3-4f79-9424-c87c6b40686d/bin/utaipan-verify-YMUCfTKeje/../../sv-benchmarks/c/array-patterns/array11_pattern.c Unable to find full path for "g++" [2024-11-09 05:01:02,004 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 05:01:02,332 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 05:01:02,332 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29faf2d7-82c3-4f79-9424-c87c6b40686d/sv-benchmarks/c/array-patterns/array11_pattern.c [2024-11-09 05:01:02,342 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29faf2d7-82c3-4f79-9424-c87c6b40686d/bin/utaipan-verify-YMUCfTKeje/data/feed30664/d44fd3ce45394d97bc894d5b9420028c/FLAG8443d36aa [2024-11-09 05:01:02,362 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29faf2d7-82c3-4f79-9424-c87c6b40686d/bin/utaipan-verify-YMUCfTKeje/data/feed30664/d44fd3ce45394d97bc894d5b9420028c [2024-11-09 05:01:02,365 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 05:01:02,367 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 05:01:02,369 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 05:01:02,369 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 05:01:02,377 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 05:01:02,378 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 05:01:02" (1/1) ... [2024-11-09 05:01:02,380 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@21b1234a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:01:02, skipping insertion in model container [2024-11-09 05:01:02,380 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 05:01:02" (1/1) ... [2024-11-09 05:01:02,409 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 05:01:02,629 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_29faf2d7-82c3-4f79-9424-c87c6b40686d/sv-benchmarks/c/array-patterns/array11_pattern.c[1357,1370] [2024-11-09 05:01:02,663 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 05:01:02,673 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 05:01:02,690 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_29faf2d7-82c3-4f79-9424-c87c6b40686d/sv-benchmarks/c/array-patterns/array11_pattern.c[1357,1370] [2024-11-09 05:01:02,708 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 05:01:02,739 INFO L204 MainTranslator]: Completed translation [2024-11-09 05:01:02,740 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:01:02 WrapperNode [2024-11-09 05:01:02,740 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 05:01:02,742 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 05:01:02,742 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 05:01:02,743 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 05:01:02,753 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:01:02" (1/1) ... [2024-11-09 05:01:02,763 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:01:02" (1/1) ... [2024-11-09 05:01:02,789 INFO L138 Inliner]: procedures = 16, calls = 22, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 75 [2024-11-09 05:01:02,790 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 05:01:02,791 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 05:01:02,791 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 05:01:02,791 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 05:01:02,813 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:01:02" (1/1) ... [2024-11-09 05:01:02,814 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:01:02" (1/1) ... [2024-11-09 05:01:02,816 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:01:02" (1/1) ... [2024-11-09 05:01:02,816 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:01:02" (1/1) ... [2024-11-09 05:01:02,823 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:01:02" (1/1) ... [2024-11-09 05:01:02,828 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:01:02" (1/1) ... [2024-11-09 05:01:02,830 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:01:02" (1/1) ... [2024-11-09 05:01:02,831 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:01:02" (1/1) ... [2024-11-09 05:01:02,834 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 05:01:02,835 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 05:01:02,835 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 05:01:02,836 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 05:01:02,837 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:01:02" (1/1) ... [2024-11-09 05:01:02,848 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 05:01:02,865 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29faf2d7-82c3-4f79-9424-c87c6b40686d/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:01:02,879 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29faf2d7-82c3-4f79-9424-c87c6b40686d/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-09 05:01:02,882 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29faf2d7-82c3-4f79-9424-c87c6b40686d/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-09 05:01:02,913 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 05:01:02,913 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-09 05:01:02,913 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-09 05:01:02,914 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-09 05:01:02,914 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-09 05:01:02,914 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-09 05:01:02,914 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 05:01:02,915 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 05:01:02,915 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-09 05:01:02,915 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-09 05:01:03,021 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 05:01:03,024 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 05:01:03,248 INFO L? ?]: Removed 14 outVars from TransFormulas that were not future-live. [2024-11-09 05:01:03,249 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 05:01:03,290 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 05:01:03,290 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-09 05:01:03,291 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 05:01:03 BoogieIcfgContainer [2024-11-09 05:01:03,291 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 05:01:03,295 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 05:01:03,297 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 05:01:03,301 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 05:01:03,302 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 05:01:02" (1/3) ... [2024-11-09 05:01:03,304 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7734c7a5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 05:01:03, skipping insertion in model container [2024-11-09 05:01:03,305 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:01:02" (2/3) ... [2024-11-09 05:01:03,306 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7734c7a5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 05:01:03, skipping insertion in model container [2024-11-09 05:01:03,306 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 05:01:03" (3/3) ... [2024-11-09 05:01:03,308 INFO L112 eAbstractionObserver]: Analyzing ICFG array11_pattern.c [2024-11-09 05:01:03,328 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 05:01:03,329 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-09 05:01:03,402 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 05:01:03,410 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;@a443a26, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 05:01:03,410 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-09 05:01:03,416 INFO L276 IsEmpty]: Start isEmpty. Operand has 20 states, 15 states have (on average 1.5333333333333334) internal successors, (23), 16 states have internal predecessors, (23), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-09 05:01:03,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-11-09 05:01:03,424 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:01:03,425 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:01:03,426 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 05:01:03,432 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:01:03,433 INFO L85 PathProgramCache]: Analyzing trace with hash -2074270826, now seen corresponding path program 1 times [2024-11-09 05:01:03,447 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:01:03,447 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [216313061] [2024-11-09 05:01:03,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:01:03,448 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:01:03,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:01:03,741 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 05:01:03,762 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:01:03,763 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [216313061] [2024-11-09 05:01:03,764 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [216313061] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:01:03,765 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:01:03,765 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 05:01:03,768 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [667398799] [2024-11-09 05:01:03,769 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:01:03,776 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-09 05:01:03,776 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:01:03,812 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-09 05:01:03,813 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-09 05:01:03,816 INFO L87 Difference]: Start difference. First operand has 20 states, 15 states have (on average 1.5333333333333334) internal successors, (23), 16 states have internal predecessors, (23), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-09 05:01:03,865 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:01:03,865 INFO L93 Difference]: Finished difference Result 29 states and 38 transitions. [2024-11-09 05:01:03,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-09 05:01:03,872 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 12 [2024-11-09 05:01:03,873 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:01:03,891 INFO L225 Difference]: With dead ends: 29 [2024-11-09 05:01:03,892 INFO L226 Difference]: Without dead ends: 18 [2024-11-09 05:01:03,896 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-09 05:01:03,904 INFO L432 NwaCegarLoop]: 22 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 22 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 05:01:03,907 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 22 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 05:01:03,930 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2024-11-09 05:01:03,954 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2024-11-09 05:01:03,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 14 states have (on average 1.3571428571428572) internal successors, (19), 14 states have internal predecessors, (19), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-09 05:01:03,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 23 transitions. [2024-11-09 05:01:03,960 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 23 transitions. Word has length 12 [2024-11-09 05:01:03,963 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:01:03,963 INFO L471 AbstractCegarLoop]: Abstraction has 18 states and 23 transitions. [2024-11-09 05:01:03,964 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-09 05:01:03,965 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 23 transitions. [2024-11-09 05:01:03,966 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2024-11-09 05:01:03,967 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:01:03,967 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:01:03,969 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-09 05:01:03,970 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 05:01:03,971 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:01:03,971 INFO L85 PathProgramCache]: Analyzing trace with hash 339856538, now seen corresponding path program 1 times [2024-11-09 05:01:03,971 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:01:03,973 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [162561693] [2024-11-09 05:01:03,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:01:03,974 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:01:04,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:01:04,464 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-09 05:01:04,465 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:01:04,465 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [162561693] [2024-11-09 05:01:04,466 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [162561693] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:01:04,466 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:01:04,466 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 05:01:04,467 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1718755939] [2024-11-09 05:01:04,467 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:01:04,469 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 05:01:04,469 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:01:04,470 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 05:01:04,471 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 05:01:04,471 INFO L87 Difference]: Start difference. First operand 18 states and 23 transitions. Second operand has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-09 05:01:04,703 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:01:04,703 INFO L93 Difference]: Finished difference Result 24 states and 30 transitions. [2024-11-09 05:01:04,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 05:01:04,705 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 17 [2024-11-09 05:01:04,706 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:01:04,707 INFO L225 Difference]: With dead ends: 24 [2024-11-09 05:01:04,707 INFO L226 Difference]: Without dead ends: 20 [2024-11-09 05:01:04,707 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 05:01:04,710 INFO L432 NwaCegarLoop]: 11 mSDtfsCounter, 6 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 23 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-09 05:01:04,713 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 23 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-09 05:01:04,715 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2024-11-09 05:01:04,724 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2024-11-09 05:01:04,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 16 states have (on average 1.3125) internal successors, (21), 16 states have internal predecessors, (21), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-09 05:01:04,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 25 transitions. [2024-11-09 05:01:04,731 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 25 transitions. Word has length 17 [2024-11-09 05:01:04,732 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:01:04,732 INFO L471 AbstractCegarLoop]: Abstraction has 20 states and 25 transitions. [2024-11-09 05:01:04,733 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-09 05:01:04,734 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 25 transitions. [2024-11-09 05:01:04,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2024-11-09 05:01:04,736 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:01:04,736 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:01:04,736 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-09 05:01:04,737 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 05:01:04,738 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:01:04,739 INFO L85 PathProgramCache]: Analyzing trace with hash -19631777, now seen corresponding path program 1 times [2024-11-09 05:01:04,740 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:01:04,740 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1673052315] [2024-11-09 05:01:04,742 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:01:04,742 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:01:04,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:01:04,949 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-09 05:01:04,951 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:01:04,951 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1673052315] [2024-11-09 05:01:04,952 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1673052315] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:01:04,952 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:01:04,953 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 05:01:04,953 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [479504168] [2024-11-09 05:01:04,954 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:01:04,954 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 05:01:04,954 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:01:04,955 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 05:01:04,955 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-09 05:01:04,955 INFO L87 Difference]: Start difference. First operand 20 states and 25 transitions. Second operand has 5 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-09 05:01:05,370 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:01:05,371 INFO L93 Difference]: Finished difference Result 37 states and 46 transitions. [2024-11-09 05:01:05,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 05:01:05,375 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 19 [2024-11-09 05:01:05,375 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:01:05,376 INFO L225 Difference]: With dead ends: 37 [2024-11-09 05:01:05,376 INFO L226 Difference]: Without dead ends: 22 [2024-11-09 05:01:05,377 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-09 05:01:05,378 INFO L432 NwaCegarLoop]: 13 mSDtfsCounter, 5 mSDsluCounter, 19 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 32 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-09 05:01:05,383 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 32 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-09 05:01:05,384 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2024-11-09 05:01:05,398 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2024-11-09 05:01:05,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 states, 18 states have (on average 1.2777777777777777) internal successors, (23), 18 states have internal predecessors, (23), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-09 05:01:05,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 27 transitions. [2024-11-09 05:01:05,399 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 27 transitions. Word has length 19 [2024-11-09 05:01:05,403 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:01:05,404 INFO L471 AbstractCegarLoop]: Abstraction has 22 states and 27 transitions. [2024-11-09 05:01:05,404 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-09 05:01:05,404 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 27 transitions. [2024-11-09 05:01:05,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2024-11-09 05:01:05,405 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:01:05,405 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:01:05,405 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-09 05:01:05,406 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 05:01:05,406 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:01:05,407 INFO L85 PathProgramCache]: Analyzing trace with hash -502115932, now seen corresponding path program 1 times [2024-11-09 05:01:05,407 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:01:05,407 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1075167124] [2024-11-09 05:01:05,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:01:05,410 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:01:05,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 05:01:05,531 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [468172384] [2024-11-09 05:01:05,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:01:05,535 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:01:05,535 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29faf2d7-82c3-4f79-9424-c87c6b40686d/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:01:05,540 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29faf2d7-82c3-4f79-9424-c87c6b40686d/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:01:05,544 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29faf2d7-82c3-4f79-9424-c87c6b40686d/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-09 05:01:05,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:01:05,674 INFO L255 TraceCheckSpWp]: Trace formula consists of 104 conjuncts, 41 conjuncts are in the unsatisfiable core [2024-11-09 05:01:05,687 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:01:05,858 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2024-11-09 05:01:06,064 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 15 [2024-11-09 05:01:06,679 INFO L349 Elim1Store]: treesize reduction 100, result has 13.0 percent of original size [2024-11-09 05:01:06,680 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 56 treesize of output 41 [2024-11-09 05:01:07,071 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 05:01:07,071 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 05:01:22,286 WARN L286 SmtUtils]: Spent 5.15s on a formula simplification that was a NOOP. DAG size: 28 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-09 05:01:44,574 WARN L286 SmtUtils]: Spent 5.47s on a formula simplification that was a NOOP. DAG size: 35 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-09 05:03:06,273 WARN L286 SmtUtils]: Spent 6.43s on a formula simplification that was a NOOP. DAG size: 32 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-09 05:03:12,916 WARN L286 SmtUtils]: Spent 6.64s on a formula simplification that was a NOOP. DAG size: 34 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-09 05:03:24,422 WARN L286 SmtUtils]: Spent 11.51s on a formula simplification that was a NOOP. DAG size: 32 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-09 05:03:46,322 WARN L286 SmtUtils]: Spent 5.30s on a formula simplification that was a NOOP. DAG size: 28 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-09 05:07:56,222 WARN L286 SmtUtils]: Spent 3.77m on a formula simplification that was a NOOP. DAG size: 195 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 05:09:01,664 WARN L286 SmtUtils]: Spent 5.29s on a formula simplification that was a NOOP. DAG size: 40 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-09 05:10:42,404 WARN L873 $PredicateComparison]: unable to prove that (let ((.cse17 (mod (+ (* 4294967295 |c_ULTIMATE.start_main_~num~0#1| |c_ULTIMATE.start_main_~num~0#1| |c_ULTIMATE.start_main_~num~0#1| |c_ULTIMATE.start_main_~num~0#1|) (* c_~ARR_SIZE~0 |c_ULTIMATE.start_main_~num~0#1| |c_ULTIMATE.start_main_~num~0#1| |c_ULTIMATE.start_main_~num~0#1| |c_ULTIMATE.start_main_~num~0#1|)) 4294967296)) (.cse131 (mod (+ (* c_~ARR_SIZE~0 |c_ULTIMATE.start_main_~num~0#1|) (* 4294967295 |c_ULTIMATE.start_main_~num~0#1|)) 4294967296))) (let ((.cse33 (< 2147483647 .cse131)) (.cse19 (< c_~ARR_SIZE~0 1)) (.cse20 (< .cse131 2147483648)) (.cse18 (< 2147483647 .cse17)) (.cse0 (< .cse17 2147483648)) (.cse4 (* c_~ARR_SIZE~0 2)) (.cse9 (select |c_#memory_int| |c_ULTIMATE.start_main_~#array1~0#1.base|)) (.cse7 (* c_~ARR_SIZE~0 4)) (.cse10 (+ .cse17 (- 4294967296)))) (and (or (and (or .cse0 (forall ((v_y_10 Int)) (let ((.cse8 (* (- 17179869184) v_y_10))) (let ((.cse5 (store |c_#memory_int| |c_ULTIMATE.start_main_~#array1~0#1.base| (store .cse9 (+ |c_ULTIMATE.start_main_~#array1~0#1.offset| (- 17179869188) .cse7 .cse8) .cse10)))) (let ((.cse6 (select .cse5 |c_ULTIMATE.start_main_~#array2~0#1.base|))) (let ((.cse1 (* v_y_10 4294967296)) (.cse2 (select .cse6 |c_ULTIMATE.start_main_~#array2~0#1.offset|)) (.cse3 (select (select (store .cse5 |c_ULTIMATE.start_main_~#array2~0#1.base| (store .cse6 (+ |c_ULTIMATE.start_main_~#array2~0#1.offset| (- 17179869188) .cse7 .cse8) (+ c_~ARR_SIZE~0 (- 4294967297) (* v_y_10 (- 4294967296))))) |c_ULTIMATE.start_main_~#array1~0#1.base|) |c_ULTIMATE.start_main_~#array1~0#1.offset|))) (or (< c_~ARR_SIZE~0 (+ .cse1 2147483649)) (< (+ .cse1 4294967296) c_~ARR_SIZE~0) (= (+ .cse2 |c_ULTIMATE.start_main_~sum~0#1| .cse3) 0) (= .cse4 (+ .cse2 |c_ULTIMATE.start_main_~sum~0#1| .cse3 2))))))))) (or (forall ((v_y_10 Int)) (let ((.cse16 (* (- 17179869184) v_y_10))) (let ((.cse14 (store |c_#memory_int| |c_ULTIMATE.start_main_~#array1~0#1.base| (store .cse9 (+ |c_ULTIMATE.start_main_~#array1~0#1.offset| (- 17179869188) .cse7 .cse16) .cse17)))) (let ((.cse15 (select .cse14 |c_ULTIMATE.start_main_~#array2~0#1.base|))) (let ((.cse11 (* v_y_10 4294967296)) (.cse12 (select .cse15 |c_ULTIMATE.start_main_~#array2~0#1.offset|)) (.cse13 (select (select (store .cse14 |c_ULTIMATE.start_main_~#array2~0#1.base| (store .cse15 (+ |c_ULTIMATE.start_main_~#array2~0#1.offset| (- 17179869188) .cse7 .cse16) (+ c_~ARR_SIZE~0 (- 4294967297) (* v_y_10 (- 4294967296))))) |c_ULTIMATE.start_main_~#array1~0#1.base|) |c_ULTIMATE.start_main_~#array1~0#1.offset|))) (or (< c_~ARR_SIZE~0 (+ .cse11 2147483649)) (< (+ .cse11 4294967296) c_~ARR_SIZE~0) (= .cse4 (+ .cse12 .cse13 |c_ULTIMATE.start_main_~sum~0#1| 2)) (= (+ .cse12 .cse13 |c_ULTIMATE.start_main_~sum~0#1|) 0))))))) .cse18)) .cse19 .cse20) (or (and (or .cse0 (forall ((v_y_9 Int)) (let ((.cse26 (* (- 17179869184) v_y_9))) (let ((.cse24 (store |c_#memory_int| |c_ULTIMATE.start_main_~#array1~0#1.base| (store .cse9 (+ .cse26 |c_ULTIMATE.start_main_~#array1~0#1.offset| (- 4) .cse7) .cse10)))) (let ((.cse25 (select .cse24 |c_ULTIMATE.start_main_~#array2~0#1.base|))) (let ((.cse21 (* v_y_9 4294967296)) (.cse22 (select .cse25 |c_ULTIMATE.start_main_~#array2~0#1.offset|)) (.cse23 (select (select (store .cse24 |c_ULTIMATE.start_main_~#array2~0#1.base| (store .cse25 (+ .cse26 (- 4) |c_ULTIMATE.start_main_~#array2~0#1.offset| .cse7) (+ (- 1) c_~ARR_SIZE~0 (* v_y_9 (- 4294967296))))) |c_ULTIMATE.start_main_~#array1~0#1.base|) |c_ULTIMATE.start_main_~#array1~0#1.offset|))) (or (< c_~ARR_SIZE~0 (+ .cse21 1)) (= (+ .cse22 .cse23 |c_ULTIMATE.start_main_~sum~0#1|) 0) (< (+ .cse21 2147483648) c_~ARR_SIZE~0) (= (+ .cse22 .cse23 |c_ULTIMATE.start_main_~sum~0#1| 2) .cse4)))))))) (or .cse18 (forall ((v_y_9 Int)) (let ((.cse32 (* (- 17179869184) v_y_9))) (let ((.cse30 (store |c_#memory_int| |c_ULTIMATE.start_main_~#array1~0#1.base| (store .cse9 (+ .cse32 |c_ULTIMATE.start_main_~#array1~0#1.offset| (- 4) .cse7) .cse17)))) (let ((.cse31 (store (select .cse30 |c_ULTIMATE.start_main_~#array2~0#1.base|) (+ .cse32 (- 4) |c_ULTIMATE.start_main_~#array2~0#1.offset| .cse7) (+ (- 1) c_~ARR_SIZE~0 (* v_y_9 (- 4294967296)))))) (let ((.cse27 (* v_y_9 4294967296)) (.cse28 (select .cse31 |c_ULTIMATE.start_main_~#array2~0#1.offset|)) (.cse29 (select (select (store .cse30 |c_ULTIMATE.start_main_~#array2~0#1.base| .cse31) |c_ULTIMATE.start_main_~#array1~0#1.base|) |c_ULTIMATE.start_main_~#array1~0#1.offset|))) (or (< c_~ARR_SIZE~0 (+ .cse27 1)) (< (+ .cse27 2147483648) c_~ARR_SIZE~0) (= .cse4 (+ |c_ULTIMATE.start_main_~sum~0#1| 2 .cse28 .cse29)) (= (+ |c_ULTIMATE.start_main_~sum~0#1| .cse28 .cse29) 0))))))))) .cse19 .cse33) (forall ((v_y_6 Int) (v_z_6 Int)) (let ((.cse42 (* v_z_6 4)) (.cse39 (mod (* v_z_6 |c_ULTIMATE.start_main_~num~0#1| |c_ULTIMATE.start_main_~num~0#1| |c_ULTIMATE.start_main_~num~0#1| |c_ULTIMATE.start_main_~num~0#1|) 4294967296))) (let ((.cse40 (store |c_#memory_int| |c_ULTIMATE.start_main_~#array1~0#1.base| (store .cse9 (+ (- 17179869184) |c_ULTIMATE.start_main_~#array1~0#1.offset| .cse42) (+ .cse39 (- 4294967296)))))) (let ((.cse38 (mod (* v_z_6 |c_ULTIMATE.start_main_~num~0#1|) 4294967296)) (.cse41 (select .cse40 |c_ULTIMATE.start_main_~#array2~0#1.base|)) (.cse35 (* v_y_6 4294967296))) (let ((.cse34 (+ .cse35 v_z_6 1)) (.cse36 (select .cse41 |c_ULTIMATE.start_main_~#array2~0#1.offset|)) (.cse37 (select (select (store .cse40 |c_ULTIMATE.start_main_~#array2~0#1.base| (store .cse41 (+ (- 17179869184) |c_ULTIMATE.start_main_~#array2~0#1.offset| .cse42) .cse38)) |c_ULTIMATE.start_main_~#array1~0#1.base|) |c_ULTIMATE.start_main_~#array1~0#1.offset|))) (or (< 4294967295 v_z_6) (= .cse34 c_~ARR_SIZE~0) (< c_~ARR_SIZE~0 .cse34) (< v_z_6 2147483648) (< (+ .cse35 v_z_6) 0) (= .cse4 (+ |c_ULTIMATE.start_main_~sum~0#1| 2 .cse36 .cse37)) (< 2147483647 .cse38) (< .cse39 2147483648) (= (+ |c_ULTIMATE.start_main_~sum~0#1| .cse36 .cse37) 0))))))) (forall ((v_z_9 Int) (v_y_9 Int)) (let ((.cse51 (* v_z_9 4)) (.cse44 (mod (* v_z_9 |c_ULTIMATE.start_main_~num~0#1| |c_ULTIMATE.start_main_~num~0#1| |c_ULTIMATE.start_main_~num~0#1| |c_ULTIMATE.start_main_~num~0#1|) 4294967296))) (let ((.cse50 (store |c_#memory_int| |c_ULTIMATE.start_main_~#array1~0#1.base| (store .cse9 (+ |c_ULTIMATE.start_main_~#array1~0#1.offset| .cse51) (+ (- 4294967296) .cse44))))) (let ((.cse49 (select .cse50 |c_ULTIMATE.start_main_~#array2~0#1.base|)) (.cse48 (mod (* v_z_9 |c_ULTIMATE.start_main_~num~0#1|) 4294967296)) (.cse47 (* v_y_9 4294967296))) (let ((.cse43 (+ v_z_9 .cse47 1)) (.cse45 (select (select (store .cse50 |c_ULTIMATE.start_main_~#array2~0#1.base| (store .cse49 (+ |c_ULTIMATE.start_main_~#array2~0#1.offset| .cse51) .cse48)) |c_ULTIMATE.start_main_~#array1~0#1.base|) |c_ULTIMATE.start_main_~#array1~0#1.offset|)) (.cse46 (select .cse49 |c_ULTIMATE.start_main_~#array2~0#1.offset|))) (or (= c_~ARR_SIZE~0 .cse43) (< c_~ARR_SIZE~0 .cse43) (< .cse44 2147483648) (< v_z_9 0) (= .cse4 (+ .cse45 |c_ULTIMATE.start_main_~sum~0#1| 2 .cse46)) (< (+ v_z_9 .cse47) 0) (< 2147483647 v_z_9) (< 2147483647 .cse48) (= (+ .cse45 |c_ULTIMATE.start_main_~sum~0#1| .cse46) 0))))))) (forall ((v_z_11 Int) (v_y_11 Int)) (let ((.cse60 (* v_z_11 4)) (.cse56 (mod (* v_z_11 |c_ULTIMATE.start_main_~num~0#1| |c_ULTIMATE.start_main_~num~0#1| |c_ULTIMATE.start_main_~num~0#1| |c_ULTIMATE.start_main_~num~0#1|) 4294967296))) (let ((.cse59 (store |c_#memory_int| |c_ULTIMATE.start_main_~#array1~0#1.base| (store .cse9 (+ |c_ULTIMATE.start_main_~#array1~0#1.offset| .cse60) .cse56)))) (let ((.cse58 (select .cse59 |c_ULTIMATE.start_main_~#array2~0#1.base|)) (.cse57 (mod (* v_z_11 |c_ULTIMATE.start_main_~num~0#1|) 4294967296)) (.cse55 (* v_y_11 4294967296))) (let ((.cse52 (+ .cse55 v_z_11 1)) (.cse53 (select (select (store .cse59 |c_ULTIMATE.start_main_~#array2~0#1.base| (store .cse58 (+ |c_ULTIMATE.start_main_~#array2~0#1.offset| .cse60) (+ .cse57 (- 4294967296)))) |c_ULTIMATE.start_main_~#array1~0#1.base|) |c_ULTIMATE.start_main_~#array1~0#1.offset|)) (.cse54 (select .cse58 |c_ULTIMATE.start_main_~#array2~0#1.offset|))) (or (< c_~ARR_SIZE~0 .cse52) (= (+ |c_ULTIMATE.start_main_~sum~0#1| .cse53 .cse54) 0) (< v_z_11 0) (< (+ .cse55 v_z_11) 0) (< 2147483647 .cse56) (< 2147483647 v_z_11) (= .cse52 c_~ARR_SIZE~0) (< .cse57 2147483648) (= .cse4 (+ |c_ULTIMATE.start_main_~sum~0#1| 2 .cse53 .cse54)))))))) (forall ((v_z_3 Int) (v_y_3 Int)) (let ((.cse69 (* v_z_3 4)) (.cse61 (mod (* v_z_3 |c_ULTIMATE.start_main_~num~0#1| |c_ULTIMATE.start_main_~num~0#1| |c_ULTIMATE.start_main_~num~0#1| |c_ULTIMATE.start_main_~num~0#1|) 4294967296))) (let ((.cse67 (store |c_#memory_int| |c_ULTIMATE.start_main_~#array1~0#1.base| (store .cse9 (+ (- 17179869184) |c_ULTIMATE.start_main_~#array1~0#1.offset| .cse69) .cse61)))) (let ((.cse66 (mod (* v_z_3 |c_ULTIMATE.start_main_~num~0#1|) 4294967296)) (.cse68 (select .cse67 |c_ULTIMATE.start_main_~#array2~0#1.base|)) (.cse65 (* v_y_3 4294967296))) (let ((.cse64 (+ v_z_3 .cse65 1)) (.cse62 (select .cse68 |c_ULTIMATE.start_main_~#array2~0#1.offset|)) (.cse63 (select (select (store .cse67 |c_ULTIMATE.start_main_~#array2~0#1.base| (store .cse68 (+ (- 17179869184) |c_ULTIMATE.start_main_~#array2~0#1.offset| .cse69) .cse66)) |c_ULTIMATE.start_main_~#array1~0#1.base|) |c_ULTIMATE.start_main_~#array1~0#1.offset|))) (or (< 2147483647 .cse61) (< 4294967295 v_z_3) (= (+ |c_ULTIMATE.start_main_~sum~0#1| .cse62 .cse63) 0) (< c_~ARR_SIZE~0 .cse64) (< (+ v_z_3 .cse65) 0) (= c_~ARR_SIZE~0 .cse64) (< 2147483647 .cse66) (< v_z_3 2147483648) (= (+ |c_ULTIMATE.start_main_~sum~0#1| .cse62 2 .cse63) .cse4))))))) (forall ((v_z_11 Int) (v_y_11 Int)) (let ((.cse78 (* v_z_11 4)) (.cse71 (mod (* v_z_11 |c_ULTIMATE.start_main_~num~0#1| |c_ULTIMATE.start_main_~num~0#1| |c_ULTIMATE.start_main_~num~0#1| |c_ULTIMATE.start_main_~num~0#1|) 4294967296))) (let ((.cse77 (store |c_#memory_int| |c_ULTIMATE.start_main_~#array1~0#1.base| (store .cse9 (+ |c_ULTIMATE.start_main_~#array1~0#1.offset| .cse78) (+ .cse71 (- 4294967296)))))) (let ((.cse72 (* v_y_11 4294967296)) (.cse76 (select .cse77 |c_ULTIMATE.start_main_~#array2~0#1.base|)) (.cse75 (mod (* v_z_11 |c_ULTIMATE.start_main_~num~0#1|) 4294967296))) (let ((.cse73 (select (select (store .cse77 |c_ULTIMATE.start_main_~#array2~0#1.base| (store .cse76 (+ |c_ULTIMATE.start_main_~#array2~0#1.offset| .cse78) (+ .cse75 (- 4294967296)))) |c_ULTIMATE.start_main_~#array1~0#1.base|) |c_ULTIMATE.start_main_~#array1~0#1.offset|)) (.cse74 (select .cse76 |c_ULTIMATE.start_main_~#array2~0#1.offset|)) (.cse70 (+ .cse72 v_z_11 1))) (or (< c_~ARR_SIZE~0 .cse70) (< .cse71 2147483648) (< v_z_11 0) (< (+ .cse72 v_z_11) 0) (= (+ .cse73 |c_ULTIMATE.start_main_~sum~0#1| .cse74) 0) (< 2147483647 v_z_11) (= .cse4 (+ .cse73 |c_ULTIMATE.start_main_~sum~0#1| 2 .cse74)) (= .cse70 c_~ARR_SIZE~0) (< .cse75 2147483648))))))) (let ((.cse79 (mod (+ c_~ARR_SIZE~0 4294967295) 4294967296))) (or .cse19 (< .cse79 2147483648) (let ((.cse91 (* .cse79 4))) (let ((.cse84 (+ (- 17179869184) |c_ULTIMATE.start_main_~#array2~0#1.offset| .cse91)) (.cse85 (+ .cse79 (- 4294967296))) (.cse86 (+ (- 17179869184) |c_ULTIMATE.start_main_~#array1~0#1.offset| .cse91))) (and (let ((.cse82 (store |c_#memory_int| |c_ULTIMATE.start_main_~#array1~0#1.base| (store .cse9 .cse86 .cse10)))) (let ((.cse83 (select .cse82 |c_ULTIMATE.start_main_~#array2~0#1.base|))) (let ((.cse80 (select .cse83 |c_ULTIMATE.start_main_~#array2~0#1.offset|)) (.cse81 (select (select (store .cse82 |c_ULTIMATE.start_main_~#array2~0#1.base| (store .cse83 .cse84 .cse85)) |c_ULTIMATE.start_main_~#array1~0#1.base|) |c_ULTIMATE.start_main_~#array1~0#1.offset|))) (or .cse0 (= (+ |c_ULTIMATE.start_main_~sum~0#1| .cse80 .cse81) 0) (= .cse4 (+ |c_ULTIMATE.start_main_~sum~0#1| 2 .cse80 .cse81)))))) (let ((.cse90 (store |c_#memory_int| |c_ULTIMATE.start_main_~#array1~0#1.base| (store .cse9 .cse86 .cse17)))) (let ((.cse89 (select .cse90 |c_ULTIMATE.start_main_~#array2~0#1.base|))) (let ((.cse87 (select (select (store .cse90 |c_ULTIMATE.start_main_~#array2~0#1.base| (store .cse89 .cse84 .cse85)) |c_ULTIMATE.start_main_~#array1~0#1.base|) |c_ULTIMATE.start_main_~#array1~0#1.offset|)) (.cse88 (select .cse89 |c_ULTIMATE.start_main_~#array2~0#1.offset|))) (or (= .cse4 (+ .cse87 |c_ULTIMATE.start_main_~sum~0#1| 2 .cse88)) (= (+ .cse87 |c_ULTIMATE.start_main_~sum~0#1| .cse88) 0) .cse18))))))) .cse33)) (forall ((v_z_10 Int) (v_y_10 Int)) (let ((.cse100 (* v_z_10 4)) (.cse96 (mod (* v_z_10 |c_ULTIMATE.start_main_~num~0#1| |c_ULTIMATE.start_main_~num~0#1| |c_ULTIMATE.start_main_~num~0#1| |c_ULTIMATE.start_main_~num~0#1|) 4294967296))) (let ((.cse98 (store |c_#memory_int| |c_ULTIMATE.start_main_~#array1~0#1.base| (store .cse9 (+ (- 17179869184) |c_ULTIMATE.start_main_~#array1~0#1.offset| .cse100) (+ .cse96 (- 4294967296)))))) (let ((.cse97 (mod (* v_z_10 |c_ULTIMATE.start_main_~num~0#1|) 4294967296)) (.cse99 (select .cse98 |c_ULTIMATE.start_main_~#array2~0#1.base|)) (.cse93 (* v_y_10 4294967296))) (let ((.cse92 (+ .cse93 v_z_10 1)) (.cse94 (select .cse99 |c_ULTIMATE.start_main_~#array2~0#1.offset|)) (.cse95 (select (select (store .cse98 |c_ULTIMATE.start_main_~#array2~0#1.base| (store .cse99 (+ (- 17179869184) .cse100 |c_ULTIMATE.start_main_~#array2~0#1.offset|) (+ .cse97 (- 4294967296)))) |c_ULTIMATE.start_main_~#array1~0#1.base|) |c_ULTIMATE.start_main_~#array1~0#1.offset|))) (or (< 4294967295 v_z_10) (= c_~ARR_SIZE~0 .cse92) (< v_z_10 2147483648) (< (+ .cse93 v_z_10) 0) (< c_~ARR_SIZE~0 .cse92) (= (+ .cse94 |c_ULTIMATE.start_main_~sum~0#1| .cse95) 0) (< .cse96 2147483648) (= (+ .cse94 |c_ULTIMATE.start_main_~sum~0#1| 2 .cse95) .cse4) (< .cse97 2147483648))))))) (forall ((v_z_9 Int) (v_y_9 Int)) (let ((.cse109 (* v_z_9 4)) (.cse106 (mod (* v_z_9 |c_ULTIMATE.start_main_~num~0#1| |c_ULTIMATE.start_main_~num~0#1| |c_ULTIMATE.start_main_~num~0#1| |c_ULTIMATE.start_main_~num~0#1|) 4294967296))) (let ((.cse108 (store |c_#memory_int| |c_ULTIMATE.start_main_~#array1~0#1.base| (store .cse9 (+ |c_ULTIMATE.start_main_~#array1~0#1.offset| .cse109) .cse106))) (.cse105 (mod (* v_z_9 |c_ULTIMATE.start_main_~num~0#1|) 4294967296))) (let ((.cse107 (store (select .cse108 |c_ULTIMATE.start_main_~#array2~0#1.base|) (+ |c_ULTIMATE.start_main_~#array2~0#1.offset| .cse109) .cse105)) (.cse104 (* v_y_9 4294967296))) (let ((.cse101 (+ v_z_9 .cse104 1)) (.cse102 (select (select (store .cse108 |c_ULTIMATE.start_main_~#array2~0#1.base| .cse107) |c_ULTIMATE.start_main_~#array1~0#1.base|) |c_ULTIMATE.start_main_~#array1~0#1.offset|)) (.cse103 (select .cse107 |c_ULTIMATE.start_main_~#array2~0#1.offset|))) (or (= c_~ARR_SIZE~0 .cse101) (< c_~ARR_SIZE~0 .cse101) (= (+ |c_ULTIMATE.start_main_~sum~0#1| .cse102 .cse103) 0) (< v_z_9 0) (< (+ v_z_9 .cse104) 0) (< 2147483647 v_z_9) (< 2147483647 .cse105) (< 2147483647 .cse106) (= .cse4 (+ |c_ULTIMATE.start_main_~sum~0#1| .cse102 2 .cse103)))))))) (forall ((v_z_10 Int) (v_y_10 Int)) (let ((.cse118 (* v_z_10 4)) (.cse114 (mod (* v_z_10 |c_ULTIMATE.start_main_~num~0#1| |c_ULTIMATE.start_main_~num~0#1| |c_ULTIMATE.start_main_~num~0#1| |c_ULTIMATE.start_main_~num~0#1|) 4294967296))) (let ((.cse117 (store |c_#memory_int| |c_ULTIMATE.start_main_~#array1~0#1.base| (store .cse9 (+ (- 17179869184) |c_ULTIMATE.start_main_~#array1~0#1.offset| .cse118) .cse114)))) (let ((.cse113 (* v_y_10 4294967296)) (.cse116 (select .cse117 |c_ULTIMATE.start_main_~#array2~0#1.base|)) (.cse115 (mod (* v_z_10 |c_ULTIMATE.start_main_~num~0#1|) 4294967296))) (let ((.cse110 (select (select (store .cse117 |c_ULTIMATE.start_main_~#array2~0#1.base| (store .cse116 (+ (- 17179869184) .cse118 |c_ULTIMATE.start_main_~#array2~0#1.offset|) (+ .cse115 (- 4294967296)))) |c_ULTIMATE.start_main_~#array1~0#1.base|) |c_ULTIMATE.start_main_~#array1~0#1.offset|)) (.cse111 (select .cse116 |c_ULTIMATE.start_main_~#array2~0#1.offset|)) (.cse112 (+ .cse113 v_z_10 1))) (or (= (+ .cse110 |c_ULTIMATE.start_main_~sum~0#1| .cse111) 0) (< 4294967295 v_z_10) (= c_~ARR_SIZE~0 .cse112) (< v_z_10 2147483648) (< (+ .cse113 v_z_10) 0) (< 2147483647 .cse114) (= (+ .cse110 |c_ULTIMATE.start_main_~sum~0#1| 2 .cse111) .cse4) (< c_~ARR_SIZE~0 .cse112) (< .cse115 2147483648))))))) (or .cse19 .cse20 (and (or (forall ((v_y_11 Int)) (let ((.cse124 (* (- 17179869184) v_y_11))) (let ((.cse122 (store |c_#memory_int| |c_ULTIMATE.start_main_~#array1~0#1.base| (store .cse9 (+ |c_ULTIMATE.start_main_~#array1~0#1.offset| (- 4) .cse124 .cse7) .cse17)))) (let ((.cse123 (select .cse122 |c_ULTIMATE.start_main_~#array2~0#1.base|))) (let ((.cse120 (select .cse123 |c_ULTIMATE.start_main_~#array2~0#1.offset|)) (.cse121 (select (select (store .cse122 |c_ULTIMATE.start_main_~#array2~0#1.base| (store .cse123 (+ (- 4) |c_ULTIMATE.start_main_~#array2~0#1.offset| .cse124 .cse7) (+ (- 1) (* v_y_11 (- 4294967296)) c_~ARR_SIZE~0))) |c_ULTIMATE.start_main_~#array1~0#1.base|) |c_ULTIMATE.start_main_~#array1~0#1.offset|)) (.cse119 (* v_y_11 4294967296))) (or (< (+ .cse119 2147483648) c_~ARR_SIZE~0) (= .cse4 (+ .cse120 |c_ULTIMATE.start_main_~sum~0#1| 2 .cse121)) (= (+ .cse120 |c_ULTIMATE.start_main_~sum~0#1| .cse121) 0) (< c_~ARR_SIZE~0 (+ .cse119 1)))))))) .cse18) (or .cse0 (forall ((v_y_11 Int)) (let ((.cse130 (* (- 17179869184) v_y_11))) (let ((.cse129 (store |c_#memory_int| |c_ULTIMATE.start_main_~#array1~0#1.base| (store .cse9 (+ |c_ULTIMATE.start_main_~#array1~0#1.offset| (- 4) .cse130 .cse7) .cse10)))) (let ((.cse128 (select .cse129 |c_ULTIMATE.start_main_~#array2~0#1.base|))) (let ((.cse126 (select (select (store .cse129 |c_ULTIMATE.start_main_~#array2~0#1.base| (store .cse128 (+ (- 4) |c_ULTIMATE.start_main_~#array2~0#1.offset| .cse130 .cse7) (+ (- 1) (* v_y_11 (- 4294967296)) c_~ARR_SIZE~0))) |c_ULTIMATE.start_main_~#array1~0#1.base|) |c_ULTIMATE.start_main_~#array1~0#1.offset|)) (.cse127 (select .cse128 |c_ULTIMATE.start_main_~#array2~0#1.offset|)) (.cse125 (* v_y_11 4294967296))) (or (< (+ .cse125 2147483648) c_~ARR_SIZE~0) (= .cse4 (+ .cse126 |c_ULTIMATE.start_main_~sum~0#1| 2 .cse127)) (= 0 (+ .cse126 |c_ULTIMATE.start_main_~sum~0#1| .cse127)) (< c_~ARR_SIZE~0 (+ .cse125 1)))))))))))))) is different from true [2024-11-09 05:10:42,418 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:10:42,418 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1075167124] [2024-11-09 05:10:42,419 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 05:10:42,419 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [468172384] [2024-11-09 05:10:42,420 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [468172384] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 05:10:42,420 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1810315670] [2024-11-09 05:10:42,449 INFO L159 IcfgInterpreter]: Started Sifa with 18 locations of interest [2024-11-09 05:10:42,463 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 05:10:42,472 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 05:10:42,480 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 05:10:42,480 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 05:10:44,181 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 11 for LOIs [2024-11-09 05:10:44,185 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 05:10:53,023 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '351#(and (<= 1 |#StackHeapBarrier|) (= |ULTIMATE.start_main_~#array2~0#1.offset| 0) (<= 2 |ULTIMATE.start_main_~#array1~0#1.base|) (<= 2 |ULTIMATE.start_main_~#array2~0#1.base|) (= (+ |ULTIMATE.start_main_~num~0#1| 1) 0) (= |ULTIMATE.start_main_~#array1~0#1.offset| 0) (<= ~ARR_SIZE~0 32767) (<= 1 ~ARR_SIZE~0))' at error location [2024-11-09 05:10:53,024 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 05:10:53,024 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-09 05:10:53,024 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2024-11-09 05:10:53,024 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [832474660] [2024-11-09 05:10:53,025 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-09 05:10:53,025 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-09 05:10:53,025 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:10:53,026 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-09 05:10:53,028 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=163, Invalid=954, Unknown=9, NotChecked=64, Total=1190 [2024-11-09 05:10:53,032 INFO L87 Difference]: Start difference. First operand 22 states and 27 transitions. Second operand has 14 states, 12 states have (on average 1.4166666666666667) internal successors, (17), 11 states have internal predecessors, (17), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-09 05:10:56,274 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:10:56,275 INFO L93 Difference]: Finished difference Result 47 states and 56 transitions. [2024-11-09 05:10:56,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-09 05:10:56,275 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 12 states have (on average 1.4166666666666667) internal successors, (17), 11 states have internal predecessors, (17), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 21 [2024-11-09 05:10:56,276 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:10:56,278 INFO L225 Difference]: With dead ends: 47 [2024-11-09 05:10:56,280 INFO L226 Difference]: Without dead ends: 43 [2024-11-09 05:10:56,281 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 435 ImplicationChecksByTransitivity, 255.8s TimeCoverageRelationStatistics Valid=200, Invalid=1201, Unknown=9, NotChecked=72, Total=1482 [2024-11-09 05:10:56,284 INFO L432 NwaCegarLoop]: 10 mSDtfsCounter, 44 mSDsluCounter, 59 mSDsCounter, 0 mSdLazyCounter, 182 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 69 SdHoareTripleChecker+Invalid, 189 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 182 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-09 05:10:56,285 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 69 Invalid, 189 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 182 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-09 05:10:56,286 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2024-11-09 05:10:56,307 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 35. [2024-11-09 05:10:56,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 28 states have (on average 1.2857142857142858) internal successors, (36), 28 states have internal predecessors, (36), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-09 05:10:56,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 42 transitions. [2024-11-09 05:10:56,312 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 42 transitions. Word has length 21 [2024-11-09 05:10:56,313 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:10:56,313 INFO L471 AbstractCegarLoop]: Abstraction has 35 states and 42 transitions. [2024-11-09 05:10:56,314 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 12 states have (on average 1.4166666666666667) internal successors, (17), 11 states have internal predecessors, (17), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-09 05:10:56,314 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 42 transitions. [2024-11-09 05:10:56,315 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2024-11-09 05:10:56,317 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:10:56,317 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:10:56,337 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29faf2d7-82c3-4f79-9424-c87c6b40686d/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-09 05:10:56,518 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29faf2d7-82c3-4f79-9424-c87c6b40686d/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:10:56,519 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 05:10:56,519 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:10:56,519 INFO L85 PathProgramCache]: Analyzing trace with hash -312920919, now seen corresponding path program 2 times [2024-11-09 05:10:56,519 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:10:56,520 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2040588459] [2024-11-09 05:10:56,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:10:56,520 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:10:56,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:10:56,903 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-09 05:10:56,903 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:10:56,903 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2040588459] [2024-11-09 05:10:56,904 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2040588459] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 05:10:56,904 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1146831226] [2024-11-09 05:10:56,904 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-09 05:10:56,904 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:10:56,905 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29faf2d7-82c3-4f79-9424-c87c6b40686d/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:10:56,907 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29faf2d7-82c3-4f79-9424-c87c6b40686d/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:10:56,909 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29faf2d7-82c3-4f79-9424-c87c6b40686d/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-09 05:10:57,021 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-11-09 05:10:57,022 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 05:10:57,029 INFO L255 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 35 conjuncts are in the unsatisfiable core [2024-11-09 05:10:57,034 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:10:57,173 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2024-11-09 05:10:57,986 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 3 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 350 treesize of output 303 [2024-11-09 05:10:58,101 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 488 treesize of output 372 [2024-11-09 05:10:58,912 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 3 [2024-11-09 05:11:05,567 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 05:11:05,584 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 711 treesize of output 677 [2024-11-09 05:11:05,618 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 667 treesize of output 670 [2024-11-09 05:11:24,419 WARN L286 SmtUtils]: Spent 18.75s on a formula simplification. DAG size of input: 345 DAG size of output: 243 (called from [L 346] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2024-11-09 05:11:24,420 INFO L349 Elim1Store]: treesize reduction 1448, result has 41.5 percent of original size [2024-11-09 05:11:24,421 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 3 stores, 7 select indices, 7 select index equivalence classes, 1 disjoint index pairs (out of 21 index pairs), introduced 10 new quantified variables, introduced 39 case distinctions, treesize of input 666 treesize of output 1878 [2024-11-09 05:11:24,644 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 494 treesize of output 497 [2024-11-09 05:11:24,779 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 484 treesize of output 487 [2024-11-09 05:11:24,938 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 469 treesize of output 472 [2024-11-09 05:11:25,083 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 454 treesize of output 457 [2024-11-09 05:11:25,240 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 439 treesize of output 442