./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loop-crafted/simple_array_index_value_4.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version cf1a7837 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_9a6e8594-359f-4edc-859f-ebec5dea2f01/bin/utaipan-verify-NcY6lQBIFX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a6e8594-359f-4edc-859f-ebec5dea2f01/bin/utaipan-verify-NcY6lQBIFX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a6e8594-359f-4edc-859f-ebec5dea2f01/bin/utaipan-verify-NcY6lQBIFX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a6e8594-359f-4edc-859f-ebec5dea2f01/bin/utaipan-verify-NcY6lQBIFX/config/TaipanReach.xml -i ../../sv-benchmarks/c/loop-crafted/simple_array_index_value_4.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a6e8594-359f-4edc-859f-ebec5dea2f01/bin/utaipan-verify-NcY6lQBIFX/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a6e8594-359f-4edc-859f-ebec5dea2f01/bin/utaipan-verify-NcY6lQBIFX --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 6604dbb2462dfab53c0d37d83d08add09bc53abffb53773fd7099f9e7acddff3 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-12 00:48:07,273 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 00:48:07,401 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a6e8594-359f-4edc-859f-ebec5dea2f01/bin/utaipan-verify-NcY6lQBIFX/config/svcomp-Reach-32bit-Taipan_Default.epf [2023-11-12 00:48:07,411 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 00:48:07,412 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 00:48:07,461 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 00:48:07,462 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 00:48:07,463 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 00:48:07,464 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 00:48:07,472 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-12 00:48:07,472 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-12 00:48:07,474 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-12 00:48:07,474 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-12 00:48:07,476 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-12 00:48:07,477 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-12 00:48:07,477 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-12 00:48:07,478 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-12 00:48:07,478 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-12 00:48:07,479 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-12 00:48:07,479 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-12 00:48:07,480 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-12 00:48:07,480 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-12 00:48:07,482 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 00:48:07,482 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-12 00:48:07,483 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-12 00:48:07,483 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-12 00:48:07,483 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-12 00:48:07,484 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 00:48:07,484 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-12 00:48:07,485 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 00:48:07,486 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-12 00:48:07,486 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-12 00:48:07,487 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-12 00:48:07,487 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 00:48:07,487 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 00:48:07,488 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-12 00:48:07,488 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 00:48:07,488 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 00:48:07,489 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 00:48:07,489 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-12 00:48:07,489 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-12 00:48:07,490 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-12 00:48:07,490 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-12 00:48:07,490 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-12 00:48:07,491 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-12 00:48:07,491 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_9a6e8594-359f-4edc-859f-ebec5dea2f01/bin/utaipan-verify-NcY6lQBIFX/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a6e8594-359f-4edc-859f-ebec5dea2f01/bin/utaipan-verify-NcY6lQBIFX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6604dbb2462dfab53c0d37d83d08add09bc53abffb53773fd7099f9e7acddff3 [2023-11-12 00:48:07,833 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 00:48:07,867 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 00:48:07,870 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 00:48:07,872 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 00:48:07,872 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 00:48:07,875 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a6e8594-359f-4edc-859f-ebec5dea2f01/bin/utaipan-verify-NcY6lQBIFX/../../sv-benchmarks/c/loop-crafted/simple_array_index_value_4.i [2023-11-12 00:48:11,215 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 00:48:11,428 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 00:48:11,429 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a6e8594-359f-4edc-859f-ebec5dea2f01/sv-benchmarks/c/loop-crafted/simple_array_index_value_4.i [2023-11-12 00:48:11,437 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a6e8594-359f-4edc-859f-ebec5dea2f01/bin/utaipan-verify-NcY6lQBIFX/data/0ccbcd09f/ec14e28013e149d2b972df22c08e1258/FLAG15174e9ac [2023-11-12 00:48:11,452 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a6e8594-359f-4edc-859f-ebec5dea2f01/bin/utaipan-verify-NcY6lQBIFX/data/0ccbcd09f/ec14e28013e149d2b972df22c08e1258 [2023-11-12 00:48:11,455 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 00:48:11,457 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 00:48:11,458 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 00:48:11,458 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 00:48:11,469 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 00:48:11,470 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:48:11" (1/1) ... [2023-11-12 00:48:11,471 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@66de8a60 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:48:11, skipping insertion in model container [2023-11-12 00:48:11,471 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:48:11" (1/1) ... [2023-11-12 00:48:11,499 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 00:48:11,644 WARN L240 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_9a6e8594-359f-4edc-859f-ebec5dea2f01/sv-benchmarks/c/loop-crafted/simple_array_index_value_4.i[919,932] [2023-11-12 00:48:11,663 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:48:11,673 INFO L202 MainTranslator]: Completed pre-run [2023-11-12 00:48:11,685 WARN L240 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_9a6e8594-359f-4edc-859f-ebec5dea2f01/sv-benchmarks/c/loop-crafted/simple_array_index_value_4.i[919,932] [2023-11-12 00:48:11,694 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:48:11,710 INFO L206 MainTranslator]: Completed translation [2023-11-12 00:48:11,710 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:48:11 WrapperNode [2023-11-12 00:48:11,711 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 00:48:11,712 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-12 00:48:11,712 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-12 00:48:11,712 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-12 00:48:11,720 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:48:11" (1/1) ... [2023-11-12 00:48:11,728 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:48:11" (1/1) ... [2023-11-12 00:48:11,754 INFO L138 Inliner]: procedures = 17, calls = 18, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 67 [2023-11-12 00:48:11,754 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-12 00:48:11,755 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-12 00:48:11,755 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-12 00:48:11,755 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-12 00:48:11,764 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:48:11" (1/1) ... [2023-11-12 00:48:11,765 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:48:11" (1/1) ... [2023-11-12 00:48:11,767 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:48:11" (1/1) ... [2023-11-12 00:48:11,767 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:48:11" (1/1) ... [2023-11-12 00:48:11,773 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:48:11" (1/1) ... [2023-11-12 00:48:11,776 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:48:11" (1/1) ... [2023-11-12 00:48:11,778 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:48:11" (1/1) ... [2023-11-12 00:48:11,779 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:48:11" (1/1) ... [2023-11-12 00:48:11,781 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-12 00:48:11,782 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-12 00:48:11,783 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-12 00:48:11,783 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-12 00:48:11,784 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:48:11" (1/1) ... [2023-11-12 00:48:11,791 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 00:48:11,803 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a6e8594-359f-4edc-859f-ebec5dea2f01/bin/utaipan-verify-NcY6lQBIFX/z3 [2023-11-12 00:48:11,819 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a6e8594-359f-4edc-859f-ebec5dea2f01/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-12 00:48:11,844 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a6e8594-359f-4edc-859f-ebec5dea2f01/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-12 00:48:11,868 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-12 00:48:11,869 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-12 00:48:11,869 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-12 00:48:11,869 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-12 00:48:11,869 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-12 00:48:11,869 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-12 00:48:11,872 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-12 00:48:11,873 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-12 00:48:11,873 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-12 00:48:11,873 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-12 00:48:11,874 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-12 00:48:11,874 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-12 00:48:11,969 INFO L236 CfgBuilder]: Building ICFG [2023-11-12 00:48:11,971 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-12 00:48:12,243 INFO L277 CfgBuilder]: Performing block encoding [2023-11-12 00:48:12,280 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-12 00:48:12,280 INFO L302 CfgBuilder]: Removed 3 assume(true) statements. [2023-11-12 00:48:12,283 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:48:12 BoogieIcfgContainer [2023-11-12 00:48:12,283 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-12 00:48:12,286 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-12 00:48:12,286 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-12 00:48:12,290 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-12 00:48:12,290 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 12:48:11" (1/3) ... [2023-11-12 00:48:12,291 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@736bdd92 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:48:12, skipping insertion in model container [2023-11-12 00:48:12,291 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:48:11" (2/3) ... [2023-11-12 00:48:12,291 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@736bdd92 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:48:12, skipping insertion in model container [2023-11-12 00:48:12,292 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:48:12" (3/3) ... [2023-11-12 00:48:12,293 INFO L112 eAbstractionObserver]: Analyzing ICFG simple_array_index_value_4.i [2023-11-12 00:48:12,313 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-12 00:48:12,314 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-12 00:48:12,364 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-12 00:48:12,371 INFO L357 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, mHoare=true, 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;@48356024, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-12 00:48:12,371 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-12 00:48:12,375 INFO L276 IsEmpty]: Start isEmpty. Operand has 24 states, 15 states have (on average 1.4) internal successors, (21), 17 states have internal predecessors, (21), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2023-11-12 00:48:12,383 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2023-11-12 00:48:12,384 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:48:12,384 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 00:48:12,385 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 00:48:12,416 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:48:12,417 INFO L85 PathProgramCache]: Analyzing trace with hash -793010551, now seen corresponding path program 1 times [2023-11-12 00:48:12,427 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:48:12,427 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [905278635] [2023-11-12 00:48:12,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:48:12,428 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:48:12,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:48:12,729 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-12 00:48:12,729 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:48:12,730 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [905278635] [2023-11-12 00:48:12,730 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [905278635] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:48:12,731 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:48:12,731 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-12 00:48:12,733 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [262570927] [2023-11-12 00:48:12,733 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:48:12,738 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 00:48:12,738 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 00:48:12,767 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 00:48:12,768 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 00:48:12,770 INFO L87 Difference]: Start difference. First operand has 24 states, 15 states have (on average 1.4) internal successors, (21), 17 states have internal predecessors, (21), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-12 00:48:12,817 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:48:12,817 INFO L93 Difference]: Finished difference Result 47 states and 63 transitions. [2023-11-12 00:48:12,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 00:48:12,820 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 14 [2023-11-12 00:48:12,820 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:48:12,828 INFO L225 Difference]: With dead ends: 47 [2023-11-12 00:48:12,828 INFO L226 Difference]: Without dead ends: 23 [2023-11-12 00:48:12,832 INFO L412 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 [2023-11-12 00:48:12,837 INFO L413 NwaCegarLoop]: 23 mSDtfsCounter, 0 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 46 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-12 00:48:12,839 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 46 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-12 00:48:12,858 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2023-11-12 00:48:12,881 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2023-11-12 00:48:12,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 15 states have (on average 1.2) internal successors, (18), 16 states have internal predecessors, (18), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2023-11-12 00:48:12,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 28 transitions. [2023-11-12 00:48:12,887 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 28 transitions. Word has length 14 [2023-11-12 00:48:12,888 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:48:12,888 INFO L495 AbstractCegarLoop]: Abstraction has 23 states and 28 transitions. [2023-11-12 00:48:12,889 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-12 00:48:12,889 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 28 transitions. [2023-11-12 00:48:12,891 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2023-11-12 00:48:12,891 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:48:12,892 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 00:48:12,892 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-12 00:48:12,893 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 00:48:12,894 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:48:12,894 INFO L85 PathProgramCache]: Analyzing trace with hash -2051718140, now seen corresponding path program 1 times [2023-11-12 00:48:12,895 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:48:12,896 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1041796420] [2023-11-12 00:48:12,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:48:12,896 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:48:12,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:48:13,270 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-12 00:48:13,270 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:48:13,271 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1041796420] [2023-11-12 00:48:13,271 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1041796420] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-12 00:48:13,271 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [280124584] [2023-11-12 00:48:13,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:48:13,272 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 00:48:13,272 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a6e8594-359f-4edc-859f-ebec5dea2f01/bin/utaipan-verify-NcY6lQBIFX/z3 [2023-11-12 00:48:13,276 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a6e8594-359f-4edc-859f-ebec5dea2f01/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 00:48:13,286 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a6e8594-359f-4edc-859f-ebec5dea2f01/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-12 00:48:13,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:48:13,397 INFO L262 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 12 conjunts are in the unsatisfiable core [2023-11-12 00:48:13,403 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 00:48:13,586 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-12 00:48:13,587 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 00:48:13,587 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [280124584] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:48:13,588 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-12 00:48:13,588 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [4] total 9 [2023-11-12 00:48:13,589 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1722901348] [2023-11-12 00:48:13,590 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:48:13,590 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-12 00:48:13,591 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 00:48:13,592 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-12 00:48:13,592 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2023-11-12 00:48:13,593 INFO L87 Difference]: Start difference. First operand 23 states and 28 transitions. Second operand has 7 states, 5 states have (on average 2.0) internal successors, (10), 5 states have internal predecessors, (10), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-12 00:48:13,737 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:48:13,737 INFO L93 Difference]: Finished difference Result 32 states and 37 transitions. [2023-11-12 00:48:13,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-12 00:48:13,738 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 5 states have (on average 2.0) internal successors, (10), 5 states have internal predecessors, (10), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 15 [2023-11-12 00:48:13,739 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:48:13,740 INFO L225 Difference]: With dead ends: 32 [2023-11-12 00:48:13,740 INFO L226 Difference]: Without dead ends: 30 [2023-11-12 00:48:13,741 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2023-11-12 00:48:13,742 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 9 mSDsluCounter, 46 mSDsCounter, 0 mSdLazyCounter, 91 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 57 SdHoareTripleChecker+Invalid, 92 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 91 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-12 00:48:13,743 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 57 Invalid, 92 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 91 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-12 00:48:13,744 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2023-11-12 00:48:13,752 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 27. [2023-11-12 00:48:13,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 18 states have (on average 1.1666666666666667) internal successors, (21), 19 states have internal predecessors, (21), 5 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2023-11-12 00:48:13,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 31 transitions. [2023-11-12 00:48:13,754 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 31 transitions. Word has length 15 [2023-11-12 00:48:13,755 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:48:13,755 INFO L495 AbstractCegarLoop]: Abstraction has 27 states and 31 transitions. [2023-11-12 00:48:13,755 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 5 states have (on average 2.0) internal successors, (10), 5 states have internal predecessors, (10), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-12 00:48:13,756 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 31 transitions. [2023-11-12 00:48:13,756 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2023-11-12 00:48:13,757 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:48:13,757 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 00:48:13,770 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a6e8594-359f-4edc-859f-ebec5dea2f01/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-12 00:48:13,964 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a6e8594-359f-4edc-859f-ebec5dea2f01/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 00:48:13,965 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 00:48:13,966 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:48:13,966 INFO L85 PathProgramCache]: Analyzing trace with hash 2009796492, now seen corresponding path program 1 times [2023-11-12 00:48:13,966 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:48:13,966 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1843238887] [2023-11-12 00:48:13,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:48:13,967 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:48:14,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:48:14,172 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-12 00:48:14,172 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:48:14,172 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1843238887] [2023-11-12 00:48:14,172 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1843238887] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-12 00:48:14,173 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [532978693] [2023-11-12 00:48:14,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:48:14,173 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 00:48:14,173 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a6e8594-359f-4edc-859f-ebec5dea2f01/bin/utaipan-verify-NcY6lQBIFX/z3 [2023-11-12 00:48:14,175 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a6e8594-359f-4edc-859f-ebec5dea2f01/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 00:48:14,219 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a6e8594-359f-4edc-859f-ebec5dea2f01/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-12 00:48:14,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:48:14,287 INFO L262 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-12 00:48:14,289 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 00:48:14,318 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-12 00:48:14,318 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 00:48:14,318 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [532978693] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:48:14,318 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-12 00:48:14,319 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2023-11-12 00:48:14,319 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1686695957] [2023-11-12 00:48:14,319 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:48:14,333 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 00:48:14,334 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 00:48:14,335 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 00:48:14,336 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-12 00:48:14,336 INFO L87 Difference]: Start difference. First operand 27 states and 31 transitions. Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-12 00:48:14,377 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:48:14,377 INFO L93 Difference]: Finished difference Result 42 states and 49 transitions. [2023-11-12 00:48:14,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 00:48:14,379 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 17 [2023-11-12 00:48:14,380 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:48:14,383 INFO L225 Difference]: With dead ends: 42 [2023-11-12 00:48:14,383 INFO L226 Difference]: Without dead ends: 32 [2023-11-12 00:48:14,384 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-12 00:48:14,389 INFO L413 NwaCegarLoop]: 22 mSDtfsCounter, 2 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 39 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-12 00:48:14,392 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 39 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-12 00:48:14,394 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2023-11-12 00:48:14,404 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 28. [2023-11-12 00:48:14,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 19 states have (on average 1.1578947368421053) internal successors, (22), 19 states have internal predecessors, (22), 5 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2023-11-12 00:48:14,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 32 transitions. [2023-11-12 00:48:14,411 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 32 transitions. Word has length 17 [2023-11-12 00:48:14,411 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:48:14,411 INFO L495 AbstractCegarLoop]: Abstraction has 28 states and 32 transitions. [2023-11-12 00:48:14,412 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-12 00:48:14,412 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 32 transitions. [2023-11-12 00:48:14,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2023-11-12 00:48:14,414 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:48:14,414 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 00:48:14,426 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a6e8594-359f-4edc-859f-ebec5dea2f01/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-12 00:48:14,621 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a6e8594-359f-4edc-859f-ebec5dea2f01/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 00:48:14,621 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 00:48:14,622 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:48:14,622 INFO L85 PathProgramCache]: Analyzing trace with hash -2040663439, now seen corresponding path program 1 times [2023-11-12 00:48:14,622 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:48:14,622 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2072327971] [2023-11-12 00:48:14,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:48:14,623 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:48:14,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:48:14,908 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-11-12 00:48:14,908 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:48:14,909 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2072327971] [2023-11-12 00:48:14,909 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2072327971] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-12 00:48:14,912 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1646524288] [2023-11-12 00:48:14,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:48:14,916 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 00:48:14,916 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a6e8594-359f-4edc-859f-ebec5dea2f01/bin/utaipan-verify-NcY6lQBIFX/z3 [2023-11-12 00:48:14,921 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a6e8594-359f-4edc-859f-ebec5dea2f01/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 00:48:14,953 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a6e8594-359f-4edc-859f-ebec5dea2f01/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-12 00:48:15,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:48:15,017 INFO L262 TraceCheckSpWp]: Trace formula consists of 103 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-12 00:48:15,019 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 00:48:15,046 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2023-11-12 00:48:15,046 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-12 00:48:15,105 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-11-12 00:48:15,105 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1646524288] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-12 00:48:15,106 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1334956620] [2023-11-12 00:48:15,129 INFO L159 IcfgInterpreter]: Started Sifa with 21 locations of interest [2023-11-12 00:48:15,129 INFO L166 IcfgInterpreter]: Building call graph [2023-11-12 00:48:15,135 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-11-12 00:48:15,141 INFO L176 IcfgInterpreter]: Starting interpretation [2023-11-12 00:48:15,142 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-11-12 00:48:18,154 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 120 for LOIs [2023-11-12 00:48:18,680 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 1 for LOIs [2023-11-12 00:48:18,682 INFO L180 IcfgInterpreter]: Interpretation finished [2023-11-12 00:48:21,077 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '592#(and (or (exists ((|v_ULTIMATE.start_main_~index2~0#1_BEFORE_CALL_22| Int) (|v_ULTIMATE.start_main_~index1~0#1_BEFORE_CALL_24| Int) (|v_ULTIMATE.start_main_~loop_entered~0#1_BEFORE_CALL_25| Int)) (and (= |v_ULTIMATE.start_main_~loop_entered~0#1_BEFORE_CALL_25| 1) (<= (+ (mod |v_ULTIMATE.start_main_~index1~0#1_BEFORE_CALL_24| 4294967296) 1) (mod |v_ULTIMATE.start_main_~index2~0#1_BEFORE_CALL_22| 4294967296)) (<= 100000 (mod |v_ULTIMATE.start_main_~index2~0#1_BEFORE_CALL_22| 4294967296)))) (exists ((|v_ULTIMATE.start_main_~loop_entered~0#1_BEFORE_CALL_19| Int) (|v_ULTIMATE.start_main_~index2~0#1_BEFORE_CALL_16| Int) (|v_ULTIMATE.start_main_~#array~0#1.base_BEFORE_CALL_17| Int) (|v_ULTIMATE.start_main_#t~mem9#1_BEFORE_CALL_1| Int) (|v_ULTIMATE.start_main_#t~mem10#1_BEFORE_CALL_1| Int) (|v_ULTIMATE.start_main_~index1~0#1_BEFORE_CALL_18| Int) (|v_ULTIMATE.start_main_~#array~0#1.offset_BEFORE_CALL_17| Int)) (and (or (and (<= (mod |v_ULTIMATE.start_main_~index1~0#1_BEFORE_CALL_18| 4294967296) 2147483647) (= |v_ULTIMATE.start_main_#t~mem9#1_BEFORE_CALL_1| (select (select |#memory_int| |v_ULTIMATE.start_main_~#array~0#1.base_BEFORE_CALL_17|) (+ |v_ULTIMATE.start_main_~#array~0#1.offset_BEFORE_CALL_17| (* 4 (mod |v_ULTIMATE.start_main_~index1~0#1_BEFORE_CALL_18| 4294967296)))))) (and (= |v_ULTIMATE.start_main_#t~mem9#1_BEFORE_CALL_1| (select (select |#memory_int| |v_ULTIMATE.start_main_~#array~0#1.base_BEFORE_CALL_17|) (+ |v_ULTIMATE.start_main_~#array~0#1.offset_BEFORE_CALL_17| (- 17179869184) (* 4 (mod |v_ULTIMATE.start_main_~index1~0#1_BEFORE_CALL_18| 4294967296))))) (<= 2147483648 (mod |v_ULTIMATE.start_main_~index1~0#1_BEFORE_CALL_18| 4294967296)))) (<= (+ (mod |v_ULTIMATE.start_main_~index2~0#1_BEFORE_CALL_16| 4294967296) 1) (mod |v_ULTIMATE.start_main_~index1~0#1_BEFORE_CALL_18| 4294967296)) (= |v_ULTIMATE.start_main_~loop_entered~0#1_BEFORE_CALL_19| 1) (not (= (mod |v_ULTIMATE.start_main_#t~mem9#1_BEFORE_CALL_1| 4294967296) (mod |v_ULTIMATE.start_main_#t~mem10#1_BEFORE_CALL_1| 4294967296))) (or (and (= |v_ULTIMATE.start_main_#t~mem10#1_BEFORE_CALL_1| (select (select |#memory_int| |v_ULTIMATE.start_main_~#array~0#1.base_BEFORE_CALL_17|) (+ |v_ULTIMATE.start_main_~#array~0#1.offset_BEFORE_CALL_17| (- 17179869184) (* (mod |v_ULTIMATE.start_main_~index2~0#1_BEFORE_CALL_16| 4294967296) 4)))) (<= 2147483648 (mod |v_ULTIMATE.start_main_~index2~0#1_BEFORE_CALL_16| 4294967296))) (and (<= (mod |v_ULTIMATE.start_main_~index2~0#1_BEFORE_CALL_16| 4294967296) 2147483647) (= (select (select |#memory_int| |v_ULTIMATE.start_main_~#array~0#1.base_BEFORE_CALL_17|) (+ |v_ULTIMATE.start_main_~#array~0#1.offset_BEFORE_CALL_17| (* (mod |v_ULTIMATE.start_main_~index2~0#1_BEFORE_CALL_16| 4294967296) 4))) |v_ULTIMATE.start_main_#t~mem10#1_BEFORE_CALL_1|)))))) (= |__VERIFIER_assert_#in~cond| 0) (= __VERIFIER_assert_~cond 0))' at error location [2023-11-12 00:48:21,077 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2023-11-12 00:48:21,077 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-12 00:48:21,077 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 3, 4] total 7 [2023-11-12 00:48:21,078 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [123543958] [2023-11-12 00:48:21,078 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-12 00:48:21,079 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-12 00:48:21,079 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 00:48:21,080 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-12 00:48:21,080 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=394, Unknown=0, NotChecked=0, Total=462 [2023-11-12 00:48:21,081 INFO L87 Difference]: Start difference. First operand 28 states and 32 transitions. Second operand has 7 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 7 states have internal predecessors, (25), 1 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2023-11-12 00:48:21,144 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:48:21,144 INFO L93 Difference]: Finished difference Result 56 states and 66 transitions. [2023-11-12 00:48:21,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-12 00:48:21,146 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 7 states have internal predecessors, (25), 1 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) Word has length 28 [2023-11-12 00:48:21,146 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:48:21,147 INFO L225 Difference]: With dead ends: 56 [2023-11-12 00:48:21,147 INFO L226 Difference]: Without dead ends: 31 [2023-11-12 00:48:21,148 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 66 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 129 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=75, Invalid=431, Unknown=0, NotChecked=0, Total=506 [2023-11-12 00:48:21,149 INFO L413 NwaCegarLoop]: 22 mSDtfsCounter, 0 mSDsluCounter, 88 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 110 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-12 00:48:21,150 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 110 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-12 00:48:21,150 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2023-11-12 00:48:21,155 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2023-11-12 00:48:21,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 22 states have (on average 1.1363636363636365) internal successors, (25), 22 states have internal predecessors, (25), 5 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2023-11-12 00:48:21,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 35 transitions. [2023-11-12 00:48:21,157 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 35 transitions. Word has length 28 [2023-11-12 00:48:21,157 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:48:21,157 INFO L495 AbstractCegarLoop]: Abstraction has 31 states and 35 transitions. [2023-11-12 00:48:21,158 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 7 states have internal predecessors, (25), 1 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2023-11-12 00:48:21,158 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 35 transitions. [2023-11-12 00:48:21,159 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2023-11-12 00:48:21,159 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:48:21,159 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 00:48:21,171 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a6e8594-359f-4edc-859f-ebec5dea2f01/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-11-12 00:48:21,366 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a6e8594-359f-4edc-859f-ebec5dea2f01/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 00:48:21,366 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 00:48:21,366 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:48:21,367 INFO L85 PathProgramCache]: Analyzing trace with hash 187271500, now seen corresponding path program 2 times [2023-11-12 00:48:21,367 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:48:21,367 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [586282656] [2023-11-12 00:48:21,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:48:21,367 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:48:21,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:48:21,632 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 2 proven. 10 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-11-12 00:48:21,632 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:48:21,633 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [586282656] [2023-11-12 00:48:21,636 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [586282656] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-12 00:48:21,637 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1198005285] [2023-11-12 00:48:21,637 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-12 00:48:21,638 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 00:48:21,638 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a6e8594-359f-4edc-859f-ebec5dea2f01/bin/utaipan-verify-NcY6lQBIFX/z3 [2023-11-12 00:48:21,639 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a6e8594-359f-4edc-859f-ebec5dea2f01/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 00:48:21,652 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a6e8594-359f-4edc-859f-ebec5dea2f01/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-12 00:48:21,907 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2023-11-12 00:48:21,907 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-12 00:48:21,910 INFO L262 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 35 conjunts are in the unsatisfiable core [2023-11-12 00:48:21,913 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 00:48:22,561 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 00:48:22,564 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 00:48:22,565 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-12 00:48:22,567 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 00:48:22,569 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 00:48:22,572 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-12 00:48:22,586 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-12 00:48:22,587 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 6 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 105 treesize of output 56 [2023-11-12 00:48:22,822 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-11-12 00:48:22,823 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-12 00:48:25,618 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1198005285] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-12 00:48:25,619 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1539732128] [2023-11-12 00:48:25,621 INFO L159 IcfgInterpreter]: Started Sifa with 21 locations of interest [2023-11-12 00:48:25,622 INFO L166 IcfgInterpreter]: Building call graph [2023-11-12 00:48:25,622 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-11-12 00:48:25,623 INFO L176 IcfgInterpreter]: Starting interpretation [2023-11-12 00:48:25,623 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-11-12 00:48:27,297 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 120 for LOIs [2023-11-12 00:48:27,655 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 1 for LOIs [2023-11-12 00:48:27,656 INFO L180 IcfgInterpreter]: Interpretation finished [2023-11-12 00:48:30,618 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '879#(and (= |__VERIFIER_assert_#in~cond| 0) (= __VERIFIER_assert_~cond 0) (or (exists ((|v_ULTIMATE.start_main_~loop_entered~0#1_BEFORE_CALL_44| Int) (|v_ULTIMATE.start_main_~index1~0#1_BEFORE_CALL_45| Int) (|v_ULTIMATE.start_main_~#array~0#1.base_BEFORE_CALL_43| Int) (|v_ULTIMATE.start_main_#t~mem10#1_BEFORE_CALL_3| Int) (|v_ULTIMATE.start_main_~#array~0#1.offset_BEFORE_CALL_46| Int) (|v_ULTIMATE.start_main_~index2~0#1_BEFORE_CALL_40| Int) (|v_ULTIMATE.start_main_#t~mem9#1_BEFORE_CALL_3| Int)) (and (or (and (= |v_ULTIMATE.start_main_#t~mem9#1_BEFORE_CALL_3| (select (select |#memory_int| |v_ULTIMATE.start_main_~#array~0#1.base_BEFORE_CALL_43|) (+ (* 4 (mod |v_ULTIMATE.start_main_~index1~0#1_BEFORE_CALL_45| 4294967296)) |v_ULTIMATE.start_main_~#array~0#1.offset_BEFORE_CALL_46|))) (<= (mod |v_ULTIMATE.start_main_~index1~0#1_BEFORE_CALL_45| 4294967296) 2147483647)) (and (= |v_ULTIMATE.start_main_#t~mem9#1_BEFORE_CALL_3| (select (select |#memory_int| |v_ULTIMATE.start_main_~#array~0#1.base_BEFORE_CALL_43|) (+ (* 4 (mod |v_ULTIMATE.start_main_~index1~0#1_BEFORE_CALL_45| 4294967296)) |v_ULTIMATE.start_main_~#array~0#1.offset_BEFORE_CALL_46| (- 17179869184)))) (<= 2147483648 (mod |v_ULTIMATE.start_main_~index1~0#1_BEFORE_CALL_45| 4294967296)))) (not (= (mod |v_ULTIMATE.start_main_#t~mem9#1_BEFORE_CALL_3| 4294967296) (mod |v_ULTIMATE.start_main_#t~mem10#1_BEFORE_CALL_3| 4294967296))) (<= (+ (mod |v_ULTIMATE.start_main_~index2~0#1_BEFORE_CALL_40| 4294967296) 1) (mod |v_ULTIMATE.start_main_~index1~0#1_BEFORE_CALL_45| 4294967296)) (or (and (<= 2147483648 (mod |v_ULTIMATE.start_main_~index2~0#1_BEFORE_CALL_40| 4294967296)) (= (select (select |#memory_int| |v_ULTIMATE.start_main_~#array~0#1.base_BEFORE_CALL_43|) (+ |v_ULTIMATE.start_main_~#array~0#1.offset_BEFORE_CALL_46| (- 17179869184) (* (mod |v_ULTIMATE.start_main_~index2~0#1_BEFORE_CALL_40| 4294967296) 4))) |v_ULTIMATE.start_main_#t~mem10#1_BEFORE_CALL_3|)) (and (= (select (select |#memory_int| |v_ULTIMATE.start_main_~#array~0#1.base_BEFORE_CALL_43|) (+ |v_ULTIMATE.start_main_~#array~0#1.offset_BEFORE_CALL_46| (* (mod |v_ULTIMATE.start_main_~index2~0#1_BEFORE_CALL_40| 4294967296) 4))) |v_ULTIMATE.start_main_#t~mem10#1_BEFORE_CALL_3|) (<= (mod |v_ULTIMATE.start_main_~index2~0#1_BEFORE_CALL_40| 4294967296) 2147483647))) (= |v_ULTIMATE.start_main_~loop_entered~0#1_BEFORE_CALL_44| 1))) (exists ((|v_ULTIMATE.start_main_~index1~0#1_BEFORE_CALL_51| Int) (|v_ULTIMATE.start_main_~loop_entered~0#1_BEFORE_CALL_50| Int) (|v_ULTIMATE.start_main_~index2~0#1_BEFORE_CALL_46| Int)) (and (<= 100000 (mod |v_ULTIMATE.start_main_~index2~0#1_BEFORE_CALL_46| 4294967296)) (<= (+ (mod |v_ULTIMATE.start_main_~index1~0#1_BEFORE_CALL_51| 4294967296) 1) (mod |v_ULTIMATE.start_main_~index2~0#1_BEFORE_CALL_46| 4294967296)) (= |v_ULTIMATE.start_main_~loop_entered~0#1_BEFORE_CALL_50| 1)))))' at error location [2023-11-12 00:48:30,619 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2023-11-12 00:48:30,619 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-12 00:48:30,619 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 14] total 19 [2023-11-12 00:48:30,619 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [159014537] [2023-11-12 00:48:30,619 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-12 00:48:30,620 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2023-11-12 00:48:30,620 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 00:48:30,621 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2023-11-12 00:48:30,622 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=133, Invalid=1273, Unknown=0, NotChecked=0, Total=1406 [2023-11-12 00:48:30,622 INFO L87 Difference]: Start difference. First operand 31 states and 35 transitions. Second operand has 19 states, 15 states have (on average 2.4) internal successors, (36), 16 states have internal predecessors, (36), 5 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2023-11-12 00:48:31,770 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:48:31,770 INFO L93 Difference]: Finished difference Result 64 states and 74 transitions. [2023-11-12 00:48:31,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2023-11-12 00:48:31,771 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 15 states have (on average 2.4) internal successors, (36), 16 states have internal predecessors, (36), 5 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) Word has length 31 [2023-11-12 00:48:31,771 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:48:31,772 INFO L225 Difference]: With dead ends: 64 [2023-11-12 00:48:31,772 INFO L226 Difference]: Without dead ends: 0 [2023-11-12 00:48:31,774 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 40 SyntacticMatches, 1 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 573 ImplicationChecksByTransitivity, 5.0s TimeCoverageRelationStatistics Valid=226, Invalid=2224, Unknown=0, NotChecked=0, Total=2450 [2023-11-12 00:48:31,775 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 12 mSDsluCounter, 92 mSDsCounter, 0 mSdLazyCounter, 275 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 105 SdHoareTripleChecker+Invalid, 285 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 275 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-12 00:48:31,775 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 105 Invalid, 285 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 275 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-12 00:48:31,776 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-11-12 00:48:31,777 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-11-12 00:48:31,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 00:48:31,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-11-12 00:48:31,777 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 31 [2023-11-12 00:48:31,777 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:48:31,778 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-12 00:48:31,778 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 15 states have (on average 2.4) internal successors, (36), 16 states have internal predecessors, (36), 5 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2023-11-12 00:48:31,778 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-11-12 00:48:31,778 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-12 00:48:31,781 INFO L805 garLoopResultBuilder]: Registering result SAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-12 00:48:31,792 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a6e8594-359f-4edc-859f-ebec5dea2f01/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2023-11-12 00:48:31,987 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a6e8594-359f-4edc-859f-ebec5dea2f01/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 00:48:31,989 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-11-12 00:48:32,314 INFO L895 garLoopResultBuilder]: At program point L40-3(lines 40 42) the Hoare annotation is: (and (= |ULTIMATE.start_main_~loop_entered~0#1| 0) (= |ULTIMATE.start_main_~#array~0#1.offset| 0)) [2023-11-12 00:48:32,314 INFO L899 garLoopResultBuilder]: For program point L57(lines 57 63) no Hoare annotation was computed. [2023-11-12 00:48:32,315 INFO L895 garLoopResultBuilder]: At program point L49-1(lines 49 55) the Hoare annotation is: (let ((.cse3 (= |ULTIMATE.start_main_~#array~0#1.offset| 0))) (or (let ((.cse2 (mod (+ |ULTIMATE.start_main_~index1~0#1| 4294967295) 4294967296)) (.cse0 (mod (+ |ULTIMATE.start_main_~index2~0#1| 1) 4294967296))) (and (<= .cse0 99999) (let ((.cse1 (select |#memory_int| |ULTIMATE.start_main_~#array~0#1.base|))) (= (mod (select .cse1 (* 4 .cse0)) 4294967296) (mod (select .cse1 (* .cse2 4)) 4294967296))) .cse3 (<= (+ .cse2 1) .cse0))) (and (= |ULTIMATE.start_main_~loop_entered~0#1| 0) (<= (mod |ULTIMATE.start_main_~index2~0#1| 4294967296) 99999) .cse3))) [2023-11-12 00:48:32,315 INFO L899 garLoopResultBuilder]: For program point L49-2(lines 34 65) no Hoare annotation was computed. [2023-11-12 00:48:32,315 INFO L895 garLoopResultBuilder]: At program point L45(line 45) the Hoare annotation is: (and (= |ULTIMATE.start_main_~loop_entered~0#1| 0) (= |ULTIMATE.start_main_~#array~0#1.offset| 0)) [2023-11-12 00:48:32,315 INFO L899 garLoopResultBuilder]: For program point L45-1(line 45) no Hoare annotation was computed. [2023-11-12 00:48:32,315 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-11-12 00:48:32,315 INFO L895 garLoopResultBuilder]: At program point L58-2(lines 58 62) the Hoare annotation is: (let ((.cse3 (= |ULTIMATE.start_main_~#array~0#1.offset| 0)) (.cse1 (select |#memory_int| |ULTIMATE.start_main_~#array~0#1.base|))) (or (let ((.cse2 (mod (+ |ULTIMATE.start_main_~index1~0#1| 4294967295) 4294967296)) (.cse0 (mod (+ |ULTIMATE.start_main_~index2~0#1| 1) 4294967296))) (and (<= .cse0 99999) (= (mod (select .cse1 (* 4 .cse0)) 4294967296) (mod (select .cse1 (* .cse2 4)) 4294967296)) .cse3 (<= (+ .cse2 1) .cse0))) (let ((.cse4 (mod |ULTIMATE.start_main_~index1~0#1| 4294967296)) (.cse5 (mod |ULTIMATE.start_main_~index2~0#1| 4294967296))) (and (<= (+ .cse4 1) .cse5) (<= .cse5 99999) .cse3 (= (mod (select .cse1 (* .cse4 4)) 4294967296) (mod (select .cse1 (* .cse5 4)) 4294967296)))))) [2023-11-12 00:48:32,316 INFO L895 garLoopResultBuilder]: At program point L50(line 50) the Hoare annotation is: (let ((.cse0 (mod |ULTIMATE.start_main_~index2~0#1| 4294967296))) (and (<= (+ (mod |ULTIMATE.start_main_~index1~0#1| 4294967296) 1) .cse0) (<= .cse0 99999) (= |ULTIMATE.start_main_~#array~0#1.offset| 0))) [2023-11-12 00:48:32,316 INFO L899 garLoopResultBuilder]: For program point L50-1(line 50) no Hoare annotation was computed. [2023-11-12 00:48:32,316 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-11-12 00:48:32,316 INFO L895 garLoopResultBuilder]: At program point L59(line 59) the Hoare annotation is: (let ((.cse2 (mod (+ |ULTIMATE.start_main_~index1~0#1| 4294967295) 4294967296)) (.cse0 (mod (+ |ULTIMATE.start_main_~index2~0#1| 1) 4294967296))) (and (<= .cse0 99999) (= (mod (+ |ULTIMATE.start_main_#t~mem9#1| (* 4294967295 |ULTIMATE.start_main_#t~mem10#1|)) 4294967296) 0) (let ((.cse1 (select |#memory_int| |ULTIMATE.start_main_~#array~0#1.base|))) (= (mod (select .cse1 (* 4 .cse0)) 4294967296) (mod (select .cse1 (* .cse2 4)) 4294967296))) (= |ULTIMATE.start_main_~#array~0#1.offset| 0) (<= (+ .cse2 1) .cse0))) [2023-11-12 00:48:32,316 INFO L899 garLoopResultBuilder]: For program point L59-1(line 59) no Hoare annotation was computed. [2023-11-12 00:48:32,316 INFO L895 garLoopResultBuilder]: At program point L51(line 51) the Hoare annotation is: (let ((.cse1 (mod |ULTIMATE.start_main_~index1~0#1| 4294967296)) (.cse0 (select |#memory_int| |ULTIMATE.start_main_~#array~0#1.base|)) (.cse2 (mod |ULTIMATE.start_main_~index2~0#1| 4294967296))) (and (= |ULTIMATE.start_main_#t~mem5#1| (select .cse0 (* .cse1 4))) (<= (+ .cse1 1) .cse2) (= |ULTIMATE.start_main_#t~mem6#1| (select .cse0 (* .cse2 4))) (<= .cse2 99999) (= |ULTIMATE.start_main_~#array~0#1.offset| 0))) [2023-11-12 00:48:32,316 INFO L899 garLoopResultBuilder]: For program point L51-1(line 51) no Hoare annotation was computed. [2023-11-12 00:48:32,317 INFO L895 garLoopResultBuilder]: At program point L47(line 47) the Hoare annotation is: (and (= |ULTIMATE.start_main_~loop_entered~0#1| 0) (= |ULTIMATE.start_main_~#array~0#1.offset| 0)) [2023-11-12 00:48:32,317 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 20 22) the Hoare annotation is: true [2023-11-12 00:48:32,317 INFO L899 garLoopResultBuilder]: For program point assume_abort_if_notEXIT(lines 20 22) no Hoare annotation was computed. [2023-11-12 00:48:32,317 INFO L899 garLoopResultBuilder]: For program point L26(line 26) no Hoare annotation was computed. [2023-11-12 00:48:32,317 INFO L899 garLoopResultBuilder]: For program point __VERIFIER_assertEXIT(lines 23 29) no Hoare annotation was computed. [2023-11-12 00:48:32,317 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 23 29) the Hoare annotation is: true [2023-11-12 00:48:32,317 INFO L899 garLoopResultBuilder]: For program point L25(lines 25 27) no Hoare annotation was computed. [2023-11-12 00:48:32,317 INFO L899 garLoopResultBuilder]: For program point L25-2(lines 23 29) no Hoare annotation was computed. [2023-11-12 00:48:32,318 INFO L899 garLoopResultBuilder]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 26) no Hoare annotation was computed. [2023-11-12 00:48:32,322 INFO L445 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1] [2023-11-12 00:48:32,325 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-11-12 00:48:32,340 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int[~#array~0!base][4 * ((~index2~0 + 1) % 4294967296)] could not be translated [2023-11-12 00:48:32,341 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int[~#array~0!base][(~index1~0 + 4294967295) % 4294967296 * 4] could not be translated [2023-11-12 00:48:32,342 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int[~#array~0!base][4 * ((~index2~0 + 1) % 4294967296)] could not be translated [2023-11-12 00:48:32,342 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int[~#array~0!base][(~index1~0 + 4294967295) % 4294967296 * 4] could not be translated [2023-11-12 00:48:32,344 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int[~#array~0!base][4 * ((~index2~0 + 1) % 4294967296)] could not be translated [2023-11-12 00:48:32,344 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int[~#array~0!base][(~index1~0 + 4294967295) % 4294967296 * 4] could not be translated [2023-11-12 00:48:32,345 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int[~#array~0!base][~index1~0 % 4294967296 * 4] could not be translated [2023-11-12 00:48:32,345 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int[~#array~0!base][~index2~0 % 4294967296 * 4] could not be translated [2023-11-12 00:48:32,346 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int[~#array~0!base][4 * ((~index2~0 + 1) % 4294967296)] could not be translated [2023-11-12 00:48:32,346 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int[~#array~0!base][(~index1~0 + 4294967295) % 4294967296 * 4] could not be translated [2023-11-12 00:48:32,346 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int[~#array~0!base][~index1~0 % 4294967296 * 4] could not be translated [2023-11-12 00:48:32,347 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int[~#array~0!base][~index2~0 % 4294967296 * 4] could not be translated [2023-11-12 00:48:32,347 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.11 12:48:32 BoogieIcfgContainer [2023-11-12 00:48:32,347 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-12 00:48:32,348 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-12 00:48:32,348 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-12 00:48:32,349 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-12 00:48:32,349 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:48:12" (3/4) ... [2023-11-12 00:48:32,351 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-12 00:48:32,355 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure assume_abort_if_not [2023-11-12 00:48:32,356 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2023-11-12 00:48:32,360 INFO L944 BoogieBacktranslator]: Reduced CFG by removing 19 nodes and edges [2023-11-12 00:48:32,361 INFO L944 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2023-11-12 00:48:32,361 INFO L944 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-12 00:48:32,361 INFO L944 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2023-11-12 00:48:32,463 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a6e8594-359f-4edc-859f-ebec5dea2f01/bin/utaipan-verify-NcY6lQBIFX/witness.graphml [2023-11-12 00:48:32,464 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a6e8594-359f-4edc-859f-ebec5dea2f01/bin/utaipan-verify-NcY6lQBIFX/witness.yml [2023-11-12 00:48:32,464 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-12 00:48:32,465 INFO L158 Benchmark]: Toolchain (without parser) took 21008.35ms. Allocated memory was 146.8MB in the beginning and 285.2MB in the end (delta: 138.4MB). Free memory was 100.1MB in the beginning and 190.2MB in the end (delta: -90.1MB). Peak memory consumption was 51.3MB. Max. memory is 16.1GB. [2023-11-12 00:48:32,465 INFO L158 Benchmark]: CDTParser took 0.36ms. Allocated memory is still 146.8MB. Free memory was 90.0MB in the beginning and 89.8MB in the end (delta: 144.7kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-12 00:48:32,466 INFO L158 Benchmark]: CACSL2BoogieTranslator took 253.05ms. Allocated memory is still 146.8MB. Free memory was 100.0MB in the beginning and 89.1MB in the end (delta: 10.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-12 00:48:32,466 INFO L158 Benchmark]: Boogie Procedure Inliner took 42.31ms. Allocated memory is still 146.8MB. Free memory was 89.1MB in the beginning and 87.4MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-12 00:48:32,467 INFO L158 Benchmark]: Boogie Preprocessor took 26.86ms. Allocated memory is still 146.8MB. Free memory was 87.4MB in the beginning and 86.1MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-12 00:48:32,468 INFO L158 Benchmark]: RCFGBuilder took 500.94ms. Allocated memory is still 146.8MB. Free memory was 86.1MB in the beginning and 72.4MB in the end (delta: 13.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-11-12 00:48:32,468 INFO L158 Benchmark]: TraceAbstraction took 20061.56ms. Allocated memory was 146.8MB in the beginning and 285.2MB in the end (delta: 138.4MB). Free memory was 71.8MB in the beginning and 195.4MB in the end (delta: -123.6MB). Peak memory consumption was 15.7MB. Max. memory is 16.1GB. [2023-11-12 00:48:32,469 INFO L158 Benchmark]: Witness Printer took 116.11ms. Allocated memory is still 285.2MB. Free memory was 195.4MB in the beginning and 190.2MB in the end (delta: 5.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2023-11-12 00:48:32,471 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.36ms. Allocated memory is still 146.8MB. Free memory was 90.0MB in the beginning and 89.8MB in the end (delta: 144.7kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 253.05ms. Allocated memory is still 146.8MB. Free memory was 100.0MB in the beginning and 89.1MB in the end (delta: 10.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 42.31ms. Allocated memory is still 146.8MB. Free memory was 89.1MB in the beginning and 87.4MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 26.86ms. Allocated memory is still 146.8MB. Free memory was 87.4MB in the beginning and 86.1MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 500.94ms. Allocated memory is still 146.8MB. Free memory was 86.1MB in the beginning and 72.4MB in the end (delta: 13.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 20061.56ms. Allocated memory was 146.8MB in the beginning and 285.2MB in the end (delta: 138.4MB). Free memory was 71.8MB in the beginning and 195.4MB in the end (delta: -123.6MB). Peak memory consumption was 15.7MB. Max. memory is 16.1GB. * Witness Printer took 116.11ms. Allocated memory is still 285.2MB. Free memory was 195.4MB in the beginning and 190.2MB in the end (delta: 5.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int[~#array~0!base][4 * ((~index2~0 + 1) % 4294967296)] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int[~#array~0!base][(~index1~0 + 4294967295) % 4294967296 * 4] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int[~#array~0!base][4 * ((~index2~0 + 1) % 4294967296)] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int[~#array~0!base][(~index1~0 + 4294967295) % 4294967296 * 4] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int[~#array~0!base][4 * ((~index2~0 + 1) % 4294967296)] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int[~#array~0!base][(~index1~0 + 4294967295) % 4294967296 * 4] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int[~#array~0!base][~index1~0 % 4294967296 * 4] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int[~#array~0!base][~index2~0 % 4294967296 * 4] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int[~#array~0!base][4 * ((~index2~0 + 1) % 4294967296)] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int[~#array~0!base][(~index1~0 + 4294967295) % 4294967296 * 4] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int[~#array~0!base][~index1~0 % 4294967296 * 4] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int[~#array~0!base][~index2~0 % 4294967296 * 4] could not be translated * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 26]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 24 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 20.0s, OverallIterations: 5, TraceHistogramMax: 4, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 1.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.3s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 29 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 23 mSDsluCounter, 357 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 266 mSDsCounter, 12 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 413 IncrementalHoareTripleChecker+Invalid, 425 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 12 mSolverCounterUnsat, 91 mSDtfsCounter, 413 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 218 GetRequests, 136 SyntacticMatches, 1 SemanticMatches, 81 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 711 ImplicationChecksByTransitivity, 7.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=31occurred in iteration=4, InterpolantAutomatonStates: 42, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 5 MinimizatonAttempts, 7 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 10 LocationsWithAnnotation, 31 PreInvPairs, 47 NumberOfFragments, 298 HoareAnnotationTreeSize, 31 FomulaSimplifications, 138 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 10 FomulaSimplificationsInter, 215 FormulaSimplificationTreeSizeReductionInter, 0.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 5.1s InterpolantComputationTime, 196 NumberOfCodeBlocks, 190 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 214 ConstructedInterpolants, 0 QuantifiedInterpolants, 614 SizeOfPredicates, 13 NumberOfNonLiveVariables, 347 ConjunctsInSsa, 55 ConjunctsInUnsatCore, 10 InterpolantComputations, 3 PerfectInterpolantSequences, 66/82 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 40]: Loop Invariant Derived loop invariant: (loop_entered == 0) - InvariantResult [Line: 49]: Loop Invariant [2023-11-12 00:48:32,483 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int[~#array~0!base][4 * ((~index2~0 + 1) % 4294967296)] could not be translated [2023-11-12 00:48:32,483 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int[~#array~0!base][(~index1~0 + 4294967295) % 4294967296 * 4] could not be translated [2023-11-12 00:48:32,484 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int[~#array~0!base][4 * ((~index2~0 + 1) % 4294967296)] could not be translated [2023-11-12 00:48:32,484 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int[~#array~0!base][(~index1~0 + 4294967295) % 4294967296 * 4] could not be translated Derived loop invariant: (((((index2 + 1) % 4294967296) <= 99999) && ((((index1 + 4294967295) % 4294967296) + 1) <= ((index2 + 1) % 4294967296))) || ((loop_entered == 0) && ((index2 % 4294967296) <= 99999))) - InvariantResult [Line: 58]: Loop Invariant [2023-11-12 00:48:32,485 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int[~#array~0!base][4 * ((~index2~0 + 1) % 4294967296)] could not be translated [2023-11-12 00:48:32,486 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int[~#array~0!base][(~index1~0 + 4294967295) % 4294967296 * 4] could not be translated [2023-11-12 00:48:32,486 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int[~#array~0!base][~index1~0 % 4294967296 * 4] could not be translated [2023-11-12 00:48:32,486 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int[~#array~0!base][~index2~0 % 4294967296 * 4] could not be translated [2023-11-12 00:48:32,487 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int[~#array~0!base][4 * ((~index2~0 + 1) % 4294967296)] could not be translated [2023-11-12 00:48:32,487 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int[~#array~0!base][(~index1~0 + 4294967295) % 4294967296 * 4] could not be translated [2023-11-12 00:48:32,488 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int[~#array~0!base][~index1~0 % 4294967296 * 4] could not be translated [2023-11-12 00:48:32,488 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int[~#array~0!base][~index2~0 % 4294967296 * 4] could not be translated Derived loop invariant: (((((index2 + 1) % 4294967296) <= 99999) && ((((index1 + 4294967295) % 4294967296) + 1) <= ((index2 + 1) % 4294967296))) || ((((index1 % 4294967296) + 1) <= (index2 % 4294967296)) && ((index2 % 4294967296) <= 99999))) RESULT: Ultimate proved your program to be correct! [2023-11-12 00:48:32,513 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a6e8594-359f-4edc-859f-ebec5dea2f01/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE