./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/array-examples/standard_copy1_ground-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35e76ca5-0f7d-44f8-acaf-96692309b5c1/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35e76ca5-0f7d-44f8-acaf-96692309b5c1/bin/uautomizer-verify-BQ2R08f2Ya/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35e76ca5-0f7d-44f8-acaf-96692309b5c1/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35e76ca5-0f7d-44f8-acaf-96692309b5c1/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerReach.xml -i ../../sv-benchmarks/c/array-examples/standard_copy1_ground-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35e76ca5-0f7d-44f8-acaf-96692309b5c1/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35e76ca5-0f7d-44f8-acaf-96692309b5c1/bin/uautomizer-verify-BQ2R08f2Ya --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 5b1ea2b89c0210def4460c68ce885cb310645908c528d57c04841cf488f85c6b --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-29 05:07:19,318 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-29 05:07:19,389 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35e76ca5-0f7d-44f8-acaf-96692309b5c1/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-11-29 05:07:19,395 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-29 05:07:19,395 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-29 05:07:19,425 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-29 05:07:19,426 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-29 05:07:19,426 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-29 05:07:19,427 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-29 05:07:19,428 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-29 05:07:19,428 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-29 05:07:19,429 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-29 05:07:19,430 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-29 05:07:19,430 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-29 05:07:19,431 INFO L153 SettingsManager]: * Use SBE=true [2023-11-29 05:07:19,431 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-29 05:07:19,439 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-29 05:07:19,439 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-29 05:07:19,440 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-29 05:07:19,440 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-29 05:07:19,441 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-29 05:07:19,441 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-29 05:07:19,442 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-29 05:07:19,442 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-29 05:07:19,442 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-29 05:07:19,443 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-29 05:07:19,443 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-29 05:07:19,444 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-29 05:07:19,444 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-29 05:07:19,444 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-29 05:07:19,445 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-29 05:07:19,445 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-29 05:07:19,445 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-29 05:07:19,446 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 05:07:19,446 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-29 05:07:19,446 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-29 05:07:19,446 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-29 05:07:19,447 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-29 05:07:19,447 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-29 05:07:19,447 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-29 05:07:19,447 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-29 05:07:19,448 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-29 05:07:19,448 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-29 05:07:19,448 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-29 05:07:19,448 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_35e76ca5-0f7d-44f8-acaf-96692309b5c1/bin/uautomizer-verify-BQ2R08f2Ya/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35e76ca5-0f7d-44f8-acaf-96692309b5c1/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5b1ea2b89c0210def4460c68ce885cb310645908c528d57c04841cf488f85c6b [2023-11-29 05:07:19,692 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-29 05:07:19,714 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-29 05:07:19,717 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-29 05:07:19,718 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-29 05:07:19,718 INFO L274 PluginConnector]: CDTParser initialized [2023-11-29 05:07:19,720 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35e76ca5-0f7d-44f8-acaf-96692309b5c1/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/array-examples/standard_copy1_ground-1.i [2023-11-29 05:07:22,448 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-29 05:07:22,635 INFO L384 CDTParser]: Found 1 translation units. [2023-11-29 05:07:22,635 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35e76ca5-0f7d-44f8-acaf-96692309b5c1/sv-benchmarks/c/array-examples/standard_copy1_ground-1.i [2023-11-29 05:07:22,641 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35e76ca5-0f7d-44f8-acaf-96692309b5c1/bin/uautomizer-verify-BQ2R08f2Ya/data/2cedf9d54/97c7b4a028034bda859f7c7974625ad8/FLAG10b52d044 [2023-11-29 05:07:22,661 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35e76ca5-0f7d-44f8-acaf-96692309b5c1/bin/uautomizer-verify-BQ2R08f2Ya/data/2cedf9d54/97c7b4a028034bda859f7c7974625ad8 [2023-11-29 05:07:22,663 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-29 05:07:22,664 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-29 05:07:22,665 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-29 05:07:22,665 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-29 05:07:22,669 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-29 05:07:22,670 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 05:07:22" (1/1) ... [2023-11-29 05:07:22,671 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2550181d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:07:22, skipping insertion in model container [2023-11-29 05:07:22,671 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 05:07:22" (1/1) ... [2023-11-29 05:07:22,688 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-29 05:07:22,829 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 05:07:22,837 INFO L202 MainTranslator]: Completed pre-run [2023-11-29 05:07:22,854 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 05:07:22,870 INFO L206 MainTranslator]: Completed translation [2023-11-29 05:07:22,871 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:07:22 WrapperNode [2023-11-29 05:07:22,871 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-29 05:07:22,872 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-29 05:07:22,872 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-29 05:07:22,872 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-29 05:07:22,879 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:07:22" (1/1) ... [2023-11-29 05:07:22,886 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:07:22" (1/1) ... [2023-11-29 05:07:22,906 INFO L138 Inliner]: procedures = 16, calls = 19, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 73 [2023-11-29 05:07:22,906 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-29 05:07:22,907 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-29 05:07:22,907 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-29 05:07:22,907 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-29 05:07:22,916 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:07:22" (1/1) ... [2023-11-29 05:07:22,916 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:07:22" (1/1) ... [2023-11-29 05:07:22,918 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:07:22" (1/1) ... [2023-11-29 05:07:22,933 INFO L175 MemorySlicer]: Split 7 memory accesses to 3 slices as follows [2, 3, 2]. 43 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0]. The 2 writes are split as follows [0, 1, 1]. [2023-11-29 05:07:22,933 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:07:22" (1/1) ... [2023-11-29 05:07:22,934 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:07:22" (1/1) ... [2023-11-29 05:07:22,940 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:07:22" (1/1) ... [2023-11-29 05:07:22,943 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:07:22" (1/1) ... [2023-11-29 05:07:22,945 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:07:22" (1/1) ... [2023-11-29 05:07:22,946 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:07:22" (1/1) ... [2023-11-29 05:07:22,949 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-29 05:07:22,950 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-29 05:07:22,950 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-29 05:07:22,950 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-29 05:07:22,951 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:07:22" (1/1) ... [2023-11-29 05:07:22,957 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 05:07:22,967 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35e76ca5-0f7d-44f8-acaf-96692309b5c1/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:07:22,993 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35e76ca5-0f7d-44f8-acaf-96692309b5c1/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-29 05:07:22,995 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35e76ca5-0f7d-44f8-acaf-96692309b5c1/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-29 05:07:23,026 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-29 05:07:23,026 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-29 05:07:23,026 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2023-11-29 05:07:23,026 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2023-11-29 05:07:23,026 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-29 05:07:23,027 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2023-11-29 05:07:23,027 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2023-11-29 05:07:23,027 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2023-11-29 05:07:23,027 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-29 05:07:23,027 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-29 05:07:23,028 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2023-11-29 05:07:23,028 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2023-11-29 05:07:23,028 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2023-11-29 05:07:23,028 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-29 05:07:23,104 INFO L241 CfgBuilder]: Building ICFG [2023-11-29 05:07:23,107 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-29 05:07:23,260 INFO L282 CfgBuilder]: Performing block encoding [2023-11-29 05:07:23,294 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-29 05:07:23,294 INFO L309 CfgBuilder]: Removed 3 assume(true) statements. [2023-11-29 05:07:23,295 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 05:07:23 BoogieIcfgContainer [2023-11-29 05:07:23,295 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-29 05:07:23,298 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-29 05:07:23,298 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-29 05:07:23,300 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-29 05:07:23,300 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 05:07:22" (1/3) ... [2023-11-29 05:07:23,301 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4920361c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 05:07:23, skipping insertion in model container [2023-11-29 05:07:23,301 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:07:22" (2/3) ... [2023-11-29 05:07:23,302 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4920361c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 05:07:23, skipping insertion in model container [2023-11-29 05:07:23,302 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 05:07:23" (3/3) ... [2023-11-29 05:07:23,303 INFO L112 eAbstractionObserver]: Analyzing ICFG standard_copy1_ground-1.i [2023-11-29 05:07:23,317 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-29 05:07:23,317 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2023-11-29 05:07:23,355 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-29 05:07:23,361 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=PETRI_NET, 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;@2eae6f9d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-29 05:07:23,361 INFO L358 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2023-11-29 05:07:23,365 INFO L276 IsEmpty]: Start isEmpty. Operand has 24 states, 17 states have (on average 1.8235294117647058) internal successors, (31), 23 states have internal predecessors, (31), 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) [2023-11-29 05:07:23,369 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2023-11-29 05:07:23,370 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:07:23,370 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2023-11-29 05:07:23,370 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-29 05:07:23,374 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:07:23,374 INFO L85 PathProgramCache]: Analyzing trace with hash 109102, now seen corresponding path program 1 times [2023-11-29 05:07:23,381 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:07:23,382 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2090794504] [2023-11-29 05:07:23,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:07:23,382 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:07:23,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:07:23,612 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 05:07:23,613 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:07:23,613 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2090794504] [2023-11-29 05:07:23,614 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2090794504] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:07:23,614 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 05:07:23,614 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 05:07:23,616 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [529160881] [2023-11-29 05:07:23,617 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:07:23,621 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 05:07:23,621 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:07:23,651 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 05:07:23,652 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 05:07:23,654 INFO L87 Difference]: Start difference. First operand has 24 states, 17 states have (on average 1.8235294117647058) internal successors, (31), 23 states have internal predecessors, (31), 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) Second operand has 4 states, 3 states have (on average 1.0) internal successors, (3), 3 states have internal predecessors, (3), 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) [2023-11-29 05:07:23,721 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:07:23,721 INFO L93 Difference]: Finished difference Result 46 states and 60 transitions. [2023-11-29 05:07:23,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 05:07:23,724 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.0) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3 [2023-11-29 05:07:23,724 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:07:23,731 INFO L225 Difference]: With dead ends: 46 [2023-11-29 05:07:23,732 INFO L226 Difference]: Without dead ends: 23 [2023-11-29 05:07:23,734 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-29 05:07:23,738 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 3 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 49 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 05:07:23,739 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 49 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 05:07:23,756 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2023-11-29 05:07:23,769 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2023-11-29 05:07:23,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 17 states have (on average 1.4705882352941178) internal successors, (25), 22 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:07:23,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 25 transitions. [2023-11-29 05:07:23,773 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 25 transitions. Word has length 3 [2023-11-29 05:07:23,773 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:07:23,773 INFO L495 AbstractCegarLoop]: Abstraction has 23 states and 25 transitions. [2023-11-29 05:07:23,774 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.0) internal successors, (3), 3 states have internal predecessors, (3), 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) [2023-11-29 05:07:23,774 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 25 transitions. [2023-11-29 05:07:23,774 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-29 05:07:23,774 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:07:23,774 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1] [2023-11-29 05:07:23,775 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-29 05:07:23,775 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-29 05:07:23,776 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:07:23,776 INFO L85 PathProgramCache]: Analyzing trace with hash -1044662016, now seen corresponding path program 1 times [2023-11-29 05:07:23,776 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:07:23,776 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1306542704] [2023-11-29 05:07:23,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:07:23,777 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:07:23,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:07:23,897 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 05:07:23,898 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:07:23,898 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1306542704] [2023-11-29 05:07:23,898 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1306542704] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 05:07:23,898 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1923668576] [2023-11-29 05:07:23,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:07:23,899 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:07:23,899 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35e76ca5-0f7d-44f8-acaf-96692309b5c1/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:07:23,900 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35e76ca5-0f7d-44f8-acaf-96692309b5c1/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:07:23,912 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35e76ca5-0f7d-44f8-acaf-96692309b5c1/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-29 05:07:23,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:07:23,983 INFO L262 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 05:07:23,988 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:07:24,046 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 05:07:24,047 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 05:07:24,047 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1923668576] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:07:24,047 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-29 05:07:24,047 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 8 [2023-11-29 05:07:24,048 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [936460204] [2023-11-29 05:07:24,049 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:07:24,049 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 05:07:24,050 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:07:24,050 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 05:07:24,051 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2023-11-29 05:07:24,051 INFO L87 Difference]: Start difference. First operand 23 states and 25 transitions. Second operand has 5 states, 4 states have (on average 1.5) internal successors, (6), 5 states have internal predecessors, (6), 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) [2023-11-29 05:07:24,087 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:07:24,087 INFO L93 Difference]: Finished difference Result 23 states and 25 transitions. [2023-11-29 05:07:24,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 05:07:24,088 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 1.5) internal successors, (6), 5 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2023-11-29 05:07:24,088 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:07:24,088 INFO L225 Difference]: With dead ends: 23 [2023-11-29 05:07:24,088 INFO L226 Difference]: Without dead ends: 22 [2023-11-29 05:07:24,089 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2023-11-29 05:07:24,091 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 21 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 39 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 05:07:24,091 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 39 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 05:07:24,092 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2023-11-29 05:07:24,096 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2023-11-29 05:07:24,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 states, 17 states have (on average 1.411764705882353) internal successors, (24), 21 states have internal predecessors, (24), 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) [2023-11-29 05:07:24,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 24 transitions. [2023-11-29 05:07:24,097 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 24 transitions. Word has length 6 [2023-11-29 05:07:24,097 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:07:24,097 INFO L495 AbstractCegarLoop]: Abstraction has 22 states and 24 transitions. [2023-11-29 05:07:24,098 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 1.5) internal successors, (6), 5 states have internal predecessors, (6), 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) [2023-11-29 05:07:24,098 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 24 transitions. [2023-11-29 05:07:24,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-29 05:07:24,098 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:07:24,099 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1] [2023-11-29 05:07:24,111 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35e76ca5-0f7d-44f8-acaf-96692309b5c1/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-29 05:07:24,304 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35e76ca5-0f7d-44f8-acaf-96692309b5c1/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:07:24,304 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-29 05:07:24,305 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:07:24,305 INFO L85 PathProgramCache]: Analyzing trace with hash 1975215918, now seen corresponding path program 1 times [2023-11-29 05:07:24,305 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:07:24,305 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [53339621] [2023-11-29 05:07:24,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:07:24,306 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:07:24,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:07:24,356 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-29 05:07:24,356 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:07:24,356 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [53339621] [2023-11-29 05:07:24,356 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [53339621] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:07:24,356 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 05:07:24,357 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 05:07:24,357 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [390058992] [2023-11-29 05:07:24,357 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:07:24,357 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 05:07:24,358 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:07:24,358 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 05:07:24,358 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 05:07:24,359 INFO L87 Difference]: Start difference. First operand 22 states and 24 transitions. Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 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) [2023-11-29 05:07:24,374 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:07:24,374 INFO L93 Difference]: Finished difference Result 22 states and 24 transitions. [2023-11-29 05:07:24,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 05:07:24,375 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2023-11-29 05:07:24,375 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:07:24,376 INFO L225 Difference]: With dead ends: 22 [2023-11-29 05:07:24,376 INFO L226 Difference]: Without dead ends: 21 [2023-11-29 05:07:24,376 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 05:07:24,378 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 0 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 28 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 05:07:24,378 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 28 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 05:07:24,379 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2023-11-29 05:07:24,382 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 19. [2023-11-29 05:07:24,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 15 states have (on average 1.4) internal successors, (21), 18 states have internal predecessors, (21), 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) [2023-11-29 05:07:24,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 21 transitions. [2023-11-29 05:07:24,383 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 21 transitions. Word has length 7 [2023-11-29 05:07:24,383 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:07:24,383 INFO L495 AbstractCegarLoop]: Abstraction has 19 states and 21 transitions. [2023-11-29 05:07:24,384 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 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) [2023-11-29 05:07:24,384 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 21 transitions. [2023-11-29 05:07:24,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-29 05:07:24,384 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:07:24,384 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:07:24,384 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-29 05:07:24,385 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-29 05:07:24,385 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:07:24,385 INFO L85 PathProgramCache]: Analyzing trace with hash 1100073663, now seen corresponding path program 1 times [2023-11-29 05:07:24,386 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:07:24,386 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1225098240] [2023-11-29 05:07:24,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:07:24,386 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:07:24,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:07:24,468 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 05:07:24,468 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:07:24,468 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1225098240] [2023-11-29 05:07:24,468 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1225098240] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 05:07:24,469 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [507627265] [2023-11-29 05:07:24,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:07:24,469 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:07:24,469 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35e76ca5-0f7d-44f8-acaf-96692309b5c1/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:07:24,470 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35e76ca5-0f7d-44f8-acaf-96692309b5c1/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:07:24,475 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35e76ca5-0f7d-44f8-acaf-96692309b5c1/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-29 05:07:24,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:07:24,530 INFO L262 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 05:07:24,531 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:07:24,553 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 05:07:24,554 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 05:07:24,586 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 05:07:24,586 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [507627265] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 05:07:24,587 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-29 05:07:24,587 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 9 [2023-11-29 05:07:24,587 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1885070979] [2023-11-29 05:07:24,587 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-29 05:07:24,588 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-29 05:07:24,588 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:07:24,589 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-29 05:07:24,589 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2023-11-29 05:07:24,589 INFO L87 Difference]: Start difference. First operand 19 states and 21 transitions. Second operand has 10 states, 10 states have (on average 1.7) internal successors, (17), 9 states have internal predecessors, (17), 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) [2023-11-29 05:07:24,647 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:07:24,647 INFO L93 Difference]: Finished difference Result 39 states and 44 transitions. [2023-11-29 05:07:24,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 05:07:24,648 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 1.7) internal successors, (17), 9 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2023-11-29 05:07:24,648 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:07:24,649 INFO L225 Difference]: With dead ends: 39 [2023-11-29 05:07:24,649 INFO L226 Difference]: Without dead ends: 25 [2023-11-29 05:07:24,649 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2023-11-29 05:07:24,650 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 8 mSDsluCounter, 56 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 70 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 05:07:24,651 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 70 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 05:07:24,652 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2023-11-29 05:07:24,655 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25. [2023-11-29 05:07:24,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25 states, 21 states have (on average 1.2857142857142858) internal successors, (27), 24 states have internal predecessors, (27), 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) [2023-11-29 05:07:24,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 27 transitions. [2023-11-29 05:07:24,656 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 27 transitions. Word has length 8 [2023-11-29 05:07:24,657 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:07:24,657 INFO L495 AbstractCegarLoop]: Abstraction has 25 states and 27 transitions. [2023-11-29 05:07:24,657 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 1.7) internal successors, (17), 9 states have internal predecessors, (17), 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) [2023-11-29 05:07:24,657 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 27 transitions. [2023-11-29 05:07:24,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2023-11-29 05:07:24,658 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:07:24,658 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1] [2023-11-29 05:07:24,663 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35e76ca5-0f7d-44f8-acaf-96692309b5c1/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-11-29 05:07:24,858 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35e76ca5-0f7d-44f8-acaf-96692309b5c1/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:07:24,859 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-29 05:07:24,859 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:07:24,859 INFO L85 PathProgramCache]: Analyzing trace with hash -1808184321, now seen corresponding path program 2 times [2023-11-29 05:07:24,859 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:07:24,859 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [112416037] [2023-11-29 05:07:24,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:07:24,860 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:07:24,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:07:24,924 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-29 05:07:24,925 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:07:24,925 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [112416037] [2023-11-29 05:07:24,925 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [112416037] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:07:24,925 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 05:07:24,925 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 05:07:24,925 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1675262370] [2023-11-29 05:07:24,926 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:07:24,926 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 05:07:24,926 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:07:24,927 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 05:07:24,927 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 05:07:24,927 INFO L87 Difference]: Start difference. First operand 25 states and 27 transitions. Second operand has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 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) [2023-11-29 05:07:24,959 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:07:24,959 INFO L93 Difference]: Finished difference Result 38 states and 41 transitions. [2023-11-29 05:07:24,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 05:07:24,960 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2023-11-29 05:07:24,960 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:07:24,961 INFO L225 Difference]: With dead ends: 38 [2023-11-29 05:07:24,961 INFO L226 Difference]: Without dead ends: 28 [2023-11-29 05:07:24,961 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-29 05:07:24,962 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 3 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 39 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 05:07:24,963 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 39 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 05:07:24,964 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2023-11-29 05:07:24,968 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2023-11-29 05:07:24,968 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 24 states have (on average 1.25) internal successors, (30), 27 states have internal predecessors, (30), 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) [2023-11-29 05:07:24,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 30 transitions. [2023-11-29 05:07:24,969 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 30 transitions. Word has length 14 [2023-11-29 05:07:24,969 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:07:24,969 INFO L495 AbstractCegarLoop]: Abstraction has 28 states and 30 transitions. [2023-11-29 05:07:24,969 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 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) [2023-11-29 05:07:24,970 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 30 transitions. [2023-11-29 05:07:24,970 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2023-11-29 05:07:24,970 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:07:24,970 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 1, 1, 1, 1, 1, 1] [2023-11-29 05:07:24,971 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-29 05:07:24,971 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-29 05:07:24,971 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:07:24,971 INFO L85 PathProgramCache]: Analyzing trace with hash -139215596, now seen corresponding path program 1 times [2023-11-29 05:07:24,972 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:07:24,972 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1533000137] [2023-11-29 05:07:24,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:07:24,972 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:07:24,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:07:25,100 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-29 05:07:25,100 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:07:25,101 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1533000137] [2023-11-29 05:07:25,101 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1533000137] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 05:07:25,101 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1588305742] [2023-11-29 05:07:25,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:07:25,101 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:07:25,101 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35e76ca5-0f7d-44f8-acaf-96692309b5c1/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:07:25,103 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35e76ca5-0f7d-44f8-acaf-96692309b5c1/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:07:25,111 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35e76ca5-0f7d-44f8-acaf-96692309b5c1/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-29 05:07:25,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:07:25,178 INFO L262 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-29 05:07:25,179 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:07:25,219 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-29 05:07:25,220 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 05:07:25,311 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-29 05:07:25,311 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1588305742] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 05:07:25,311 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-29 05:07:25,311 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 17 [2023-11-29 05:07:25,312 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2067865305] [2023-11-29 05:07:25,312 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-29 05:07:25,312 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2023-11-29 05:07:25,312 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:07:25,313 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2023-11-29 05:07:25,314 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2023-11-29 05:07:25,314 INFO L87 Difference]: Start difference. First operand 28 states and 30 transitions. Second operand has 18 states, 18 states have (on average 1.7222222222222223) internal successors, (31), 17 states have internal predecessors, (31), 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) [2023-11-29 05:07:25,455 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:07:25,456 INFO L93 Difference]: Finished difference Result 57 states and 64 transitions. [2023-11-29 05:07:25,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-29 05:07:25,459 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 1.7222222222222223) internal successors, (31), 17 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2023-11-29 05:07:25,459 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:07:25,459 INFO L225 Difference]: With dead ends: 57 [2023-11-29 05:07:25,460 INFO L226 Difference]: Without dead ends: 40 [2023-11-29 05:07:25,460 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 107 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=171, Invalid=381, Unknown=0, NotChecked=0, Total=552 [2023-11-29 05:07:25,461 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 28 mSDsluCounter, 81 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 95 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 05:07:25,461 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 95 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 05:07:25,462 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2023-11-29 05:07:25,466 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 40. [2023-11-29 05:07:25,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40 states, 36 states have (on average 1.1666666666666667) internal successors, (42), 39 states have internal predecessors, (42), 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) [2023-11-29 05:07:25,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 42 transitions. [2023-11-29 05:07:25,468 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 42 transitions. Word has length 17 [2023-11-29 05:07:25,468 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:07:25,468 INFO L495 AbstractCegarLoop]: Abstraction has 40 states and 42 transitions. [2023-11-29 05:07:25,468 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 1.7222222222222223) internal successors, (31), 17 states have internal predecessors, (31), 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) [2023-11-29 05:07:25,468 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 42 transitions. [2023-11-29 05:07:25,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2023-11-29 05:07:25,469 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:07:25,469 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 2, 1, 1, 1, 1, 1, 1] [2023-11-29 05:07:25,475 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35e76ca5-0f7d-44f8-acaf-96692309b5c1/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2023-11-29 05:07:25,675 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35e76ca5-0f7d-44f8-acaf-96692309b5c1/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:07:25,675 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-29 05:07:25,675 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:07:25,675 INFO L85 PathProgramCache]: Analyzing trace with hash -720930156, now seen corresponding path program 2 times [2023-11-29 05:07:25,676 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:07:25,676 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1006935185] [2023-11-29 05:07:25,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:07:25,676 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:07:25,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:07:26,015 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 70 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-29 05:07:26,016 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:07:26,016 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1006935185] [2023-11-29 05:07:26,016 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1006935185] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 05:07:26,016 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [648949290] [2023-11-29 05:07:26,016 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 05:07:26,016 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:07:26,016 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35e76ca5-0f7d-44f8-acaf-96692309b5c1/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:07:26,017 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35e76ca5-0f7d-44f8-acaf-96692309b5c1/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:07:26,023 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35e76ca5-0f7d-44f8-acaf-96692309b5c1/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-29 05:07:26,103 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 05:07:26,103 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 05:07:26,105 INFO L262 TraceCheckSpWp]: Trace formula consists of 154 conjuncts, 16 conjunts are in the unsatisfiable core [2023-11-29 05:07:26,107 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:07:26,180 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 70 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-29 05:07:26,180 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 05:07:26,481 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 70 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-29 05:07:26,481 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [648949290] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 05:07:26,481 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-29 05:07:26,482 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16, 16] total 33 [2023-11-29 05:07:26,482 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1646188747] [2023-11-29 05:07:26,482 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-29 05:07:26,482 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2023-11-29 05:07:26,483 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:07:26,484 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2023-11-29 05:07:26,484 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=306, Invalid=816, Unknown=0, NotChecked=0, Total=1122 [2023-11-29 05:07:26,485 INFO L87 Difference]: Start difference. First operand 40 states and 42 transitions. Second operand has 34 states, 34 states have (on average 1.6176470588235294) internal successors, (55), 33 states have internal predecessors, (55), 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) [2023-11-29 05:07:26,836 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:07:26,836 INFO L93 Difference]: Finished difference Result 81 states and 92 transitions. [2023-11-29 05:07:26,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2023-11-29 05:07:26,836 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 34 states have (on average 1.6176470588235294) internal successors, (55), 33 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2023-11-29 05:07:26,837 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:07:26,837 INFO L225 Difference]: With dead ends: 81 [2023-11-29 05:07:26,838 INFO L226 Difference]: Without dead ends: 64 [2023-11-29 05:07:26,839 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 479 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=659, Invalid=1597, Unknown=0, NotChecked=0, Total=2256 [2023-11-29 05:07:26,840 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 62 mSDsluCounter, 96 mSDsCounter, 0 mSdLazyCounter, 109 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 110 SdHoareTripleChecker+Invalid, 110 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 109 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 05:07:26,840 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [62 Valid, 110 Invalid, 110 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 109 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 05:07:26,841 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2023-11-29 05:07:26,848 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 64. [2023-11-29 05:07:26,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64 states, 60 states have (on average 1.1) internal successors, (66), 63 states have internal predecessors, (66), 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) [2023-11-29 05:07:26,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 66 transitions. [2023-11-29 05:07:26,849 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 66 transitions. Word has length 29 [2023-11-29 05:07:26,850 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:07:26,850 INFO L495 AbstractCegarLoop]: Abstraction has 64 states and 66 transitions. [2023-11-29 05:07:26,850 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 1.6176470588235294) internal successors, (55), 33 states have internal predecessors, (55), 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) [2023-11-29 05:07:26,850 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 66 transitions. [2023-11-29 05:07:26,852 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2023-11-29 05:07:26,852 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:07:26,852 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 2, 1, 1, 1, 1, 1, 1] [2023-11-29 05:07:26,858 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35e76ca5-0f7d-44f8-acaf-96692309b5c1/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2023-11-29 05:07:27,057 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35e76ca5-0f7d-44f8-acaf-96692309b5c1/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2023-11-29 05:07:27,058 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-29 05:07:27,058 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:07:27,058 INFO L85 PathProgramCache]: Analyzing trace with hash -528599660, now seen corresponding path program 3 times [2023-11-29 05:07:27,059 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:07:27,059 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [550399487] [2023-11-29 05:07:27,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:07:27,059 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:07:27,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:07:27,830 INFO L134 CoverageAnalysis]: Checked inductivity of 332 backedges. 0 proven. 330 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-29 05:07:27,830 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:07:27,830 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [550399487] [2023-11-29 05:07:27,830 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [550399487] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 05:07:27,830 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1651163200] [2023-11-29 05:07:27,831 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-29 05:07:27,831 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:07:27,831 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35e76ca5-0f7d-44f8-acaf-96692309b5c1/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:07:27,835 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35e76ca5-0f7d-44f8-acaf-96692309b5c1/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:07:27,839 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35e76ca5-0f7d-44f8-acaf-96692309b5c1/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-29 05:07:27,925 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2023-11-29 05:07:27,926 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 05:07:27,926 INFO L262 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 05:07:27,929 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:07:28,000 INFO L134 CoverageAnalysis]: Checked inductivity of 332 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 330 trivial. 0 not checked. [2023-11-29 05:07:28,000 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 05:07:28,000 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1651163200] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:07:28,000 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-29 05:07:28,000 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [32] total 36 [2023-11-29 05:07:28,001 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1014144314] [2023-11-29 05:07:28,001 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:07:28,001 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 05:07:28,001 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:07:28,002 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 05:07:28,003 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=295, Invalid=965, Unknown=0, NotChecked=0, Total=1260 [2023-11-29 05:07:28,003 INFO L87 Difference]: Start difference. First operand 64 states and 66 transitions. Second operand has 5 states, 4 states have (on average 2.75) internal successors, (11), 5 states have internal predecessors, (11), 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) [2023-11-29 05:07:28,045 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:07:28,045 INFO L93 Difference]: Finished difference Result 64 states and 66 transitions. [2023-11-29 05:07:28,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 05:07:28,046 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.75) internal successors, (11), 5 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 53 [2023-11-29 05:07:28,046 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:07:28,047 INFO L225 Difference]: With dead ends: 64 [2023-11-29 05:07:28,047 INFO L226 Difference]: Without dead ends: 63 [2023-11-29 05:07:28,048 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 297 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=300, Invalid=1032, Unknown=0, NotChecked=0, Total=1332 [2023-11-29 05:07:28,049 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 14 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 36 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 05:07:28,049 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 36 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 05:07:28,050 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2023-11-29 05:07:28,057 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 63. [2023-11-29 05:07:28,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63 states, 60 states have (on average 1.0833333333333333) internal successors, (65), 62 states have internal predecessors, (65), 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) [2023-11-29 05:07:28,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 65 transitions. [2023-11-29 05:07:28,058 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 65 transitions. Word has length 53 [2023-11-29 05:07:28,058 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:07:28,059 INFO L495 AbstractCegarLoop]: Abstraction has 63 states and 65 transitions. [2023-11-29 05:07:28,059 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.75) internal successors, (11), 5 states have internal predecessors, (11), 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) [2023-11-29 05:07:28,059 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 65 transitions. [2023-11-29 05:07:28,060 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2023-11-29 05:07:28,061 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:07:28,061 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 2, 2, 1, 1, 1, 1, 1] [2023-11-29 05:07:28,067 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35e76ca5-0f7d-44f8-acaf-96692309b5c1/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2023-11-29 05:07:28,266 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35e76ca5-0f7d-44f8-acaf-96692309b5c1/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2023-11-29 05:07:28,267 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-29 05:07:28,267 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:07:28,267 INFO L85 PathProgramCache]: Analyzing trace with hash 793279788, now seen corresponding path program 1 times [2023-11-29 05:07:28,267 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:07:28,268 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [89031739] [2023-11-29 05:07:28,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:07:28,268 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:07:28,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:07:28,338 INFO L134 CoverageAnalysis]: Checked inductivity of 333 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 331 trivial. 0 not checked. [2023-11-29 05:07:28,338 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:07:28,338 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [89031739] [2023-11-29 05:07:28,338 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [89031739] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:07:28,338 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 05:07:28,338 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 05:07:28,338 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1292352125] [2023-11-29 05:07:28,339 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:07:28,339 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 05:07:28,339 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:07:28,340 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 05:07:28,340 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 05:07:28,340 INFO L87 Difference]: Start difference. First operand 63 states and 65 transitions. Second operand has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 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) [2023-11-29 05:07:28,353 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:07:28,354 INFO L93 Difference]: Finished difference Result 63 states and 65 transitions. [2023-11-29 05:07:28,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 05:07:28,354 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 54 [2023-11-29 05:07:28,355 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:07:28,355 INFO L225 Difference]: With dead ends: 63 [2023-11-29 05:07:28,356 INFO L226 Difference]: Without dead ends: 62 [2023-11-29 05:07:28,356 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 05:07:28,357 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 0 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 24 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 05:07:28,357 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 24 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 05:07:28,358 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2023-11-29 05:07:28,364 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 60. [2023-11-29 05:07:28,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60 states, 58 states have (on average 1.0689655172413792) internal successors, (62), 59 states have internal predecessors, (62), 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) [2023-11-29 05:07:28,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 62 transitions. [2023-11-29 05:07:28,365 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 62 transitions. Word has length 54 [2023-11-29 05:07:28,365 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:07:28,365 INFO L495 AbstractCegarLoop]: Abstraction has 60 states and 62 transitions. [2023-11-29 05:07:28,365 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 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) [2023-11-29 05:07:28,366 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 62 transitions. [2023-11-29 05:07:28,367 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2023-11-29 05:07:28,367 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:07:28,368 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:07:28,368 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-29 05:07:28,368 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-29 05:07:28,368 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:07:28,369 INFO L85 PathProgramCache]: Analyzing trace with hash 234003505, now seen corresponding path program 1 times [2023-11-29 05:07:28,369 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:07:28,369 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2095932124] [2023-11-29 05:07:28,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:07:28,369 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:07:28,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:07:28,466 INFO L134 CoverageAnalysis]: Checked inductivity of 331 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 330 trivial. 0 not checked. [2023-11-29 05:07:28,467 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:07:28,467 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2095932124] [2023-11-29 05:07:28,467 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2095932124] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 05:07:28,467 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2082655063] [2023-11-29 05:07:28,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:07:28,467 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:07:28,467 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35e76ca5-0f7d-44f8-acaf-96692309b5c1/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:07:28,468 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35e76ca5-0f7d-44f8-acaf-96692309b5c1/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:07:28,471 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35e76ca5-0f7d-44f8-acaf-96692309b5c1/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-11-29 05:07:28,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:07:28,582 INFO L262 TraceCheckSpWp]: Trace formula consists of 266 conjuncts, 32 conjunts are in the unsatisfiable core [2023-11-29 05:07:28,585 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:07:29,080 INFO L134 CoverageAnalysis]: Checked inductivity of 331 backedges. 0 proven. 330 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-29 05:07:29,080 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 05:07:29,996 INFO L134 CoverageAnalysis]: Checked inductivity of 331 backedges. 0 proven. 330 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-29 05:07:29,997 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2082655063] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 05:07:29,997 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-29 05:07:29,997 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 32, 32] total 67 [2023-11-29 05:07:29,997 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [557156949] [2023-11-29 05:07:29,997 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-29 05:07:29,998 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 67 states [2023-11-29 05:07:29,998 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:07:30,000 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 67 interpolants. [2023-11-29 05:07:30,001 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1063, Invalid=3359, Unknown=0, NotChecked=0, Total=4422 [2023-11-29 05:07:30,002 INFO L87 Difference]: Start difference. First operand 60 states and 62 transitions. Second operand has 67 states, 67 states have (on average 1.7014925373134329) internal successors, (114), 67 states have internal predecessors, (114), 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) [2023-11-29 05:07:30,837 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:07:30,838 INFO L93 Difference]: Finished difference Result 126 states and 146 transitions. [2023-11-29 05:07:30,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 66 states. [2023-11-29 05:07:30,843 INFO L78 Accepts]: Start accepts. Automaton has has 67 states, 67 states have (on average 1.7014925373134329) internal successors, (114), 67 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 57 [2023-11-29 05:07:30,843 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:07:30,844 INFO L225 Difference]: With dead ends: 126 [2023-11-29 05:07:30,844 INFO L226 Difference]: Without dead ends: 113 [2023-11-29 05:07:30,848 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 148 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 96 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1847 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=2539, Invalid=6967, Unknown=0, NotChecked=0, Total=9506 [2023-11-29 05:07:30,848 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 220 mSDsluCounter, 97 mSDsCounter, 0 mSdLazyCounter, 223 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 220 SdHoareTripleChecker+Valid, 107 SdHoareTripleChecker+Invalid, 224 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 223 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 05:07:30,849 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [220 Valid, 107 Invalid, 224 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 223 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 05:07:30,849 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2023-11-29 05:07:30,858 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 111. [2023-11-29 05:07:30,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 111 states, 109 states have (on average 1.036697247706422) internal successors, (113), 110 states have internal predecessors, (113), 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) [2023-11-29 05:07:30,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 113 transitions. [2023-11-29 05:07:30,860 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 113 transitions. Word has length 57 [2023-11-29 05:07:30,860 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:07:30,860 INFO L495 AbstractCegarLoop]: Abstraction has 111 states and 113 transitions. [2023-11-29 05:07:30,860 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 67 states, 67 states have (on average 1.7014925373134329) internal successors, (114), 67 states have internal predecessors, (114), 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) [2023-11-29 05:07:30,861 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 113 transitions. [2023-11-29 05:07:30,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2023-11-29 05:07:30,862 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:07:30,863 INFO L195 NwaCegarLoop]: trace histogram [31, 31, 31, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:07:30,868 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35e76ca5-0f7d-44f8-acaf-96692309b5c1/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2023-11-29 05:07:31,068 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35e76ca5-0f7d-44f8-acaf-96692309b5c1/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2023-11-29 05:07:31,069 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-29 05:07:31,069 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:07:31,069 INFO L85 PathProgramCache]: Analyzing trace with hash 973030012, now seen corresponding path program 2 times [2023-11-29 05:07:31,069 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:07:31,069 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [98757237] [2023-11-29 05:07:31,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:07:31,069 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:07:31,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:07:31,251 INFO L134 CoverageAnalysis]: Checked inductivity of 1431 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1431 trivial. 0 not checked. [2023-11-29 05:07:31,251 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:07:31,252 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [98757237] [2023-11-29 05:07:31,252 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [98757237] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:07:31,252 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 05:07:31,252 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 05:07:31,252 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2108879829] [2023-11-29 05:07:31,252 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:07:31,253 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 05:07:31,253 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:07:31,253 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 05:07:31,253 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 05:07:31,253 INFO L87 Difference]: Start difference. First operand 111 states and 113 transitions. Second operand has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 states have internal predecessors, (15), 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) [2023-11-29 05:07:31,281 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:07:31,281 INFO L93 Difference]: Finished difference Result 118 states and 120 transitions. [2023-11-29 05:07:31,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 05:07:31,282 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 108 [2023-11-29 05:07:31,282 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:07:31,283 INFO L225 Difference]: With dead ends: 118 [2023-11-29 05:07:31,283 INFO L226 Difference]: Without dead ends: 116 [2023-11-29 05:07:31,284 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-29 05:07:31,284 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 3 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 31 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 05:07:31,285 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 31 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 05:07:31,285 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states. [2023-11-29 05:07:31,294 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 116. [2023-11-29 05:07:31,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 116 states, 114 states have (on average 1.0350877192982457) internal successors, (118), 115 states have internal predecessors, (118), 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) [2023-11-29 05:07:31,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 116 states and 118 transitions. [2023-11-29 05:07:31,296 INFO L78 Accepts]: Start accepts. Automaton has 116 states and 118 transitions. Word has length 108 [2023-11-29 05:07:31,296 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:07:31,296 INFO L495 AbstractCegarLoop]: Abstraction has 116 states and 118 transitions. [2023-11-29 05:07:31,296 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 states have internal predecessors, (15), 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) [2023-11-29 05:07:31,297 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 118 transitions. [2023-11-29 05:07:31,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2023-11-29 05:07:31,298 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:07:31,298 INFO L195 NwaCegarLoop]: trace histogram [31, 31, 31, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:07:31,299 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-11-29 05:07:31,299 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-29 05:07:31,299 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:07:31,299 INFO L85 PathProgramCache]: Analyzing trace with hash -1503930966, now seen corresponding path program 1 times [2023-11-29 05:07:31,300 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:07:31,300 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [530602576] [2023-11-29 05:07:31,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:07:31,300 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:07:31,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:07:33,520 INFO L134 CoverageAnalysis]: Checked inductivity of 1435 backedges. 0 proven. 1426 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2023-11-29 05:07:33,520 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:07:33,521 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [530602576] [2023-11-29 05:07:33,521 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [530602576] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 05:07:33,521 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [354975328] [2023-11-29 05:07:33,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:07:33,521 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:07:33,521 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35e76ca5-0f7d-44f8-acaf-96692309b5c1/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:07:33,522 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35e76ca5-0f7d-44f8-acaf-96692309b5c1/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:07:33,523 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35e76ca5-0f7d-44f8-acaf-96692309b5c1/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-11-29 05:07:33,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:07:33,707 INFO L262 TraceCheckSpWp]: Trace formula consists of 501 conjuncts, 64 conjunts are in the unsatisfiable core [2023-11-29 05:07:33,713 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:07:33,930 INFO L134 CoverageAnalysis]: Checked inductivity of 1435 backedges. 0 proven. 1426 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2023-11-29 05:07:33,930 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 05:07:36,821 INFO L134 CoverageAnalysis]: Checked inductivity of 1435 backedges. 0 proven. 1426 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2023-11-29 05:07:36,821 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [354975328] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 05:07:36,821 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-29 05:07:36,821 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [64, 64, 64] total 129 [2023-11-29 05:07:36,821 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [116966851] [2023-11-29 05:07:36,822 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-29 05:07:36,822 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 130 states [2023-11-29 05:07:36,822 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:07:36,825 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 130 interpolants. [2023-11-29 05:07:36,830 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=4290, Invalid=12480, Unknown=0, NotChecked=0, Total=16770 [2023-11-29 05:07:36,831 INFO L87 Difference]: Start difference. First operand 116 states and 118 transitions. Second operand has 130 states, 130 states have (on average 1.5846153846153845) internal successors, (206), 129 states have internal predecessors, (206), 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) [2023-11-29 05:07:39,196 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:07:39,196 INFO L93 Difference]: Finished difference Result 233 states and 268 transitions. [2023-11-29 05:07:39,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 127 states. [2023-11-29 05:07:39,197 INFO L78 Accepts]: Start accepts. Automaton has has 130 states, 130 states have (on average 1.5846153846153845) internal successors, (206), 129 states have internal predecessors, (206), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2023-11-29 05:07:39,197 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:07:39,199 INFO L225 Difference]: With dead ends: 233 [2023-11-29 05:07:39,199 INFO L226 Difference]: Without dead ends: 212 [2023-11-29 05:07:39,206 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 350 GetRequests, 160 SyntacticMatches, 0 SemanticMatches, 190 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8087 ImplicationChecksByTransitivity, 5.8s TimeCoverageRelationStatistics Valid=10307, Invalid=26365, Unknown=0, NotChecked=0, Total=36672 [2023-11-29 05:07:39,207 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 400 mSDsluCounter, 186 mSDsCounter, 0 mSdLazyCounter, 376 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 400 SdHoareTripleChecker+Valid, 198 SdHoareTripleChecker+Invalid, 377 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 376 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 05:07:39,207 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [400 Valid, 198 Invalid, 377 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 376 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 05:07:39,208 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 212 states. [2023-11-29 05:07:39,220 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 212 to 212. [2023-11-29 05:07:39,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 212 states, 210 states have (on average 1.019047619047619) internal successors, (214), 211 states have internal predecessors, (214), 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) [2023-11-29 05:07:39,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 212 states to 212 states and 214 transitions. [2023-11-29 05:07:39,222 INFO L78 Accepts]: Start accepts. Automaton has 212 states and 214 transitions. Word has length 113 [2023-11-29 05:07:39,222 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:07:39,222 INFO L495 AbstractCegarLoop]: Abstraction has 212 states and 214 transitions. [2023-11-29 05:07:39,223 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 130 states, 130 states have (on average 1.5846153846153845) internal successors, (206), 129 states have internal predecessors, (206), 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) [2023-11-29 05:07:39,223 INFO L276 IsEmpty]: Start isEmpty. Operand 212 states and 214 transitions. [2023-11-29 05:07:39,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 210 [2023-11-29 05:07:39,225 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:07:39,225 INFO L195 NwaCegarLoop]: trace histogram [63, 63, 63, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:07:39,230 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35e76ca5-0f7d-44f8-acaf-96692309b5c1/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2023-11-29 05:07:39,425 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35e76ca5-0f7d-44f8-acaf-96692309b5c1/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2023-11-29 05:07:39,426 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-29 05:07:39,426 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:07:39,426 INFO L85 PathProgramCache]: Analyzing trace with hash -1465728598, now seen corresponding path program 2 times [2023-11-29 05:07:39,426 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:07:39,426 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1431260040] [2023-11-29 05:07:39,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:07:39,426 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:07:39,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:07:47,010 INFO L134 CoverageAnalysis]: Checked inductivity of 5931 backedges. 0 proven. 5922 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2023-11-29 05:07:47,010 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:07:47,010 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1431260040] [2023-11-29 05:07:47,010 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1431260040] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 05:07:47,010 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1253033192] [2023-11-29 05:07:47,010 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 05:07:47,010 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:07:47,011 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35e76ca5-0f7d-44f8-acaf-96692309b5c1/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:07:47,011 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35e76ca5-0f7d-44f8-acaf-96692309b5c1/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:07:47,012 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35e76ca5-0f7d-44f8-acaf-96692309b5c1/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-11-29 05:07:47,238 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 05:07:47,238 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 05:07:47,244 INFO L262 TraceCheckSpWp]: Trace formula consists of 917 conjuncts, 128 conjunts are in the unsatisfiable core [2023-11-29 05:07:47,253 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:07:47,622 INFO L134 CoverageAnalysis]: Checked inductivity of 5931 backedges. 0 proven. 5922 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2023-11-29 05:07:47,622 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 05:07:57,935 INFO L134 CoverageAnalysis]: Checked inductivity of 5931 backedges. 0 proven. 5922 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2023-11-29 05:07:57,935 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1253033192] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 05:07:57,935 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-29 05:07:57,935 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [128, 128, 128] total 257 [2023-11-29 05:07:57,935 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1930467462] [2023-11-29 05:07:57,936 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-29 05:07:57,936 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 258 states [2023-11-29 05:07:57,936 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:07:57,941 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 258 interpolants. [2023-11-29 05:07:57,947 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16770, Invalid=49536, Unknown=0, NotChecked=0, Total=66306 [2023-11-29 05:07:57,948 INFO L87 Difference]: Start difference. First operand 212 states and 214 transitions. Second operand has 258 states, 258 states have (on average 1.5426356589147288) internal successors, (398), 257 states have internal predecessors, (398), 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) [2023-11-29 05:08:08,540 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:08:08,540 INFO L93 Difference]: Finished difference Result 425 states and 492 transitions. [2023-11-29 05:08:08,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 255 states. [2023-11-29 05:08:08,541 INFO L78 Accepts]: Start accepts. Automaton has has 258 states, 258 states have (on average 1.5426356589147288) internal successors, (398), 257 states have internal predecessors, (398), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 209 [2023-11-29 05:08:08,542 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:08:08,544 INFO L225 Difference]: With dead ends: 425 [2023-11-29 05:08:08,544 INFO L226 Difference]: Without dead ends: 404 [2023-11-29 05:08:08,554 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 670 GetRequests, 288 SyntacticMatches, 0 SemanticMatches, 382 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32567 ImplicationChecksByTransitivity, 21.3s TimeCoverageRelationStatistics Valid=41091, Invalid=105981, Unknown=0, NotChecked=0, Total=147072 [2023-11-29 05:08:08,555 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 1138 mSDsluCounter, 172 mSDsCounter, 0 mSdLazyCounter, 695 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1138 SdHoareTripleChecker+Valid, 184 SdHoareTripleChecker+Invalid, 696 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 695 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-29 05:08:08,555 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1138 Valid, 184 Invalid, 696 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 695 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-29 05:08:08,556 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 404 states. [2023-11-29 05:08:08,572 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 404 to 404. [2023-11-29 05:08:08,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 404 states, 402 states have (on average 1.0099502487562189) internal successors, (406), 403 states have internal predecessors, (406), 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) [2023-11-29 05:08:08,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 404 states to 404 states and 406 transitions. [2023-11-29 05:08:08,574 INFO L78 Accepts]: Start accepts. Automaton has 404 states and 406 transitions. Word has length 209 [2023-11-29 05:08:08,575 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:08:08,575 INFO L495 AbstractCegarLoop]: Abstraction has 404 states and 406 transitions. [2023-11-29 05:08:08,575 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 258 states, 258 states have (on average 1.5426356589147288) internal successors, (398), 257 states have internal predecessors, (398), 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) [2023-11-29 05:08:08,576 INFO L276 IsEmpty]: Start isEmpty. Operand 404 states and 406 transitions. [2023-11-29 05:08:08,582 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 402 [2023-11-29 05:08:08,582 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:08:08,583 INFO L195 NwaCegarLoop]: trace histogram [127, 127, 127, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:08:08,588 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35e76ca5-0f7d-44f8-acaf-96692309b5c1/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2023-11-29 05:08:08,783 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35e76ca5-0f7d-44f8-acaf-96692309b5c1/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:08:08,783 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-29 05:08:08,784 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:08:08,784 INFO L85 PathProgramCache]: Analyzing trace with hash -1056925270, now seen corresponding path program 3 times [2023-11-29 05:08:08,784 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:08:08,784 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2035423383] [2023-11-29 05:08:08,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:08:08,784 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:08:09,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:08:36,104 INFO L134 CoverageAnalysis]: Checked inductivity of 24139 backedges. 0 proven. 24130 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2023-11-29 05:08:36,105 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:08:36,105 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2035423383] [2023-11-29 05:08:36,105 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2035423383] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 05:08:36,105 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1499998704] [2023-11-29 05:08:36,105 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-29 05:08:36,105 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:08:36,105 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35e76ca5-0f7d-44f8-acaf-96692309b5c1/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:08:36,106 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35e76ca5-0f7d-44f8-acaf-96692309b5c1/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:08:36,107 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35e76ca5-0f7d-44f8-acaf-96692309b5c1/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-11-29 05:08:36,293 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2023-11-29 05:08:36,293 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 05:08:36,295 INFO L262 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 05:08:36,300 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:08:36,569 INFO L134 CoverageAnalysis]: Checked inductivity of 24139 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 24135 trivial. 0 not checked. [2023-11-29 05:08:36,569 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 05:08:36,569 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1499998704] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:08:36,570 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-29 05:08:36,570 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [256] total 260 [2023-11-29 05:08:36,570 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [660090219] [2023-11-29 05:08:36,570 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:08:36,571 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 05:08:36,571 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:08:36,571 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 05:08:36,574 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16647, Invalid=50693, Unknown=0, NotChecked=0, Total=67340 [2023-11-29 05:08:36,574 INFO L87 Difference]: Start difference. First operand 404 states and 406 transitions. Second operand has 5 states, 4 states have (on average 5.0) internal successors, (20), 5 states have internal predecessors, (20), 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) [2023-11-29 05:08:36,688 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:08:36,688 INFO L93 Difference]: Finished difference Result 404 states and 406 transitions. [2023-11-29 05:08:36,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 05:08:36,689 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 5.0) internal successors, (20), 5 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 401 [2023-11-29 05:08:36,690 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:08:36,692 INFO L225 Difference]: With dead ends: 404 [2023-11-29 05:08:36,692 INFO L226 Difference]: Without dead ends: 403 [2023-11-29 05:08:36,695 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 658 GetRequests, 399 SyntacticMatches, 0 SemanticMatches, 259 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16761 ImplicationChecksByTransitivity, 15.0s TimeCoverageRelationStatistics Valid=16652, Invalid=51208, Unknown=0, NotChecked=0, Total=67860 [2023-11-29 05:08:36,696 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 6 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 25 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 05:08:36,696 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 25 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 05:08:36,696 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 403 states. [2023-11-29 05:08:36,707 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 403 to 403. [2023-11-29 05:08:36,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 403 states, 402 states have (on average 1.007462686567164) internal successors, (405), 402 states have internal predecessors, (405), 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) [2023-11-29 05:08:36,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 403 states to 403 states and 405 transitions. [2023-11-29 05:08:36,709 INFO L78 Accepts]: Start accepts. Automaton has 403 states and 405 transitions. Word has length 401 [2023-11-29 05:08:36,709 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:08:36,709 INFO L495 AbstractCegarLoop]: Abstraction has 403 states and 405 transitions. [2023-11-29 05:08:36,709 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 5.0) internal successors, (20), 5 states have internal predecessors, (20), 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) [2023-11-29 05:08:36,710 INFO L276 IsEmpty]: Start isEmpty. Operand 403 states and 405 transitions. [2023-11-29 05:08:36,717 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 403 [2023-11-29 05:08:36,717 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:08:36,717 INFO L195 NwaCegarLoop]: trace histogram [127, 127, 127, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:08:36,723 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35e76ca5-0f7d-44f8-acaf-96692309b5c1/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2023-11-29 05:08:36,918 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35e76ca5-0f7d-44f8-acaf-96692309b5c1/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2023-11-29 05:08:36,918 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-29 05:08:36,918 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:08:36,919 INFO L85 PathProgramCache]: Analyzing trace with hash 1595055096, now seen corresponding path program 1 times [2023-11-29 05:08:36,919 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:08:36,919 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1222430768] [2023-11-29 05:08:36,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:08:36,919 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:08:37,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:08:37,174 INFO L134 CoverageAnalysis]: Checked inductivity of 24140 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 24136 trivial. 0 not checked. [2023-11-29 05:08:37,174 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:08:37,174 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1222430768] [2023-11-29 05:08:37,174 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1222430768] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:08:37,174 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 05:08:37,174 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 05:08:37,174 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1136428063] [2023-11-29 05:08:37,175 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:08:37,175 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 05:08:37,175 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:08:37,176 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 05:08:37,176 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 05:08:37,176 INFO L87 Difference]: Start difference. First operand 403 states and 405 transitions. Second operand has 4 states, 3 states have (on average 7.0) internal successors, (21), 4 states have internal predecessors, (21), 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) [2023-11-29 05:08:37,204 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:08:37,204 INFO L93 Difference]: Finished difference Result 403 states and 405 transitions. [2023-11-29 05:08:37,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 05:08:37,205 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 7.0) internal successors, (21), 4 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 402 [2023-11-29 05:08:37,206 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:08:37,206 INFO L225 Difference]: With dead ends: 403 [2023-11-29 05:08:37,206 INFO L226 Difference]: Without dead ends: 0 [2023-11-29 05:08:37,208 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-29 05:08:37,209 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 2 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 25 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 05:08:37,209 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 25 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 05:08:37,210 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-11-29 05:08:37,210 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-11-29 05:08:37,210 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) [2023-11-29 05:08:37,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-11-29 05:08:37,210 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 402 [2023-11-29 05:08:37,211 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:08:37,211 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-29 05:08:37,211 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 7.0) internal successors, (21), 4 states have internal predecessors, (21), 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) [2023-11-29 05:08:37,211 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-11-29 05:08:37,211 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-29 05:08:37,214 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 6 remaining) [2023-11-29 05:08:37,214 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 6 remaining) [2023-11-29 05:08:37,214 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 6 remaining) [2023-11-29 05:08:37,215 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 6 remaining) [2023-11-29 05:08:37,215 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 6 remaining) [2023-11-29 05:08:37,215 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 6 remaining) [2023-11-29 05:08:37,215 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-11-29 05:08:37,217 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-11-29 05:08:37,509 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 23) no Hoare annotation was computed. [2023-11-29 05:08:37,509 INFO L899 garLoopResultBuilder]: For program point L27-3(line 27) no Hoare annotation was computed. [2023-11-29 05:08:37,510 INFO L899 garLoopResultBuilder]: For program point L27-4(line 27) no Hoare annotation was computed. [2023-11-29 05:08:37,510 INFO L895 garLoopResultBuilder]: At program point L27-5(lines 27 29) the Hoare annotation is: (and (<= 0 (+ |ULTIMATE.start_main_~a~0#1| 2147483648)) (<= 0 (+ |ULTIMATE.start_main_~i~0#1| 2147483648)) (<= 0 (+ |ULTIMATE.start_main_~x~0#1| 2147483648))) [2023-11-29 05:08:37,510 INFO L899 garLoopResultBuilder]: For program point L27-6(lines 27 29) no Hoare annotation was computed. [2023-11-29 05:08:37,510 INFO L899 garLoopResultBuilder]: For program point L23-3(line 23) no Hoare annotation was computed. [2023-11-29 05:08:37,510 INFO L899 garLoopResultBuilder]: For program point L23-4(line 23) no Hoare annotation was computed. [2023-11-29 05:08:37,510 INFO L895 garLoopResultBuilder]: At program point L23-5(lines 23 25) the Hoare annotation is: (and (<= 0 (+ |ULTIMATE.start_main_~a~0#1| 2147483648)) (<= 0 (+ |ULTIMATE.start_main_~i~0#1| 2147483648))) [2023-11-29 05:08:37,511 INFO L899 garLoopResultBuilder]: For program point L23-6(lines 23 25) no Hoare annotation was computed. [2023-11-29 05:08:37,511 INFO L899 garLoopResultBuilder]: For program point L19-3(line 19) no Hoare annotation was computed. [2023-11-29 05:08:37,511 INFO L899 garLoopResultBuilder]: For program point L19-4(line 19) no Hoare annotation was computed. [2023-11-29 05:08:37,511 INFO L895 garLoopResultBuilder]: At program point L19-5(lines 19 21) the Hoare annotation is: (< 0 (+ 2147483649 |ULTIMATE.start_main_~a~0#1|)) [2023-11-29 05:08:37,511 INFO L899 garLoopResultBuilder]: For program point L19-6(lines 19 21) no Hoare annotation was computed. [2023-11-29 05:08:37,511 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 19) no Hoare annotation was computed. [2023-11-29 05:08:37,511 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW(line 27) no Hoare annotation was computed. [2023-11-29 05:08:37,512 INFO L899 garLoopResultBuilder]: For program point L12(line 12) no Hoare annotation was computed. [2023-11-29 05:08:37,512 INFO L899 garLoopResultBuilder]: For program point L12-2(line 12) no Hoare annotation was computed. [2023-11-29 05:08:37,512 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 19) no Hoare annotation was computed. [2023-11-29 05:08:37,512 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-11-29 05:08:37,512 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW(line 27) no Hoare annotation was computed. [2023-11-29 05:08:37,512 INFO L899 garLoopResultBuilder]: For program point L13(line 13) no Hoare annotation was computed. [2023-11-29 05:08:37,512 INFO L899 garLoopResultBuilder]: For program point L13-3(line 13) no Hoare annotation was computed. [2023-11-29 05:08:37,512 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-11-29 05:08:37,512 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 23) no Hoare annotation was computed. [2023-11-29 05:08:37,515 INFO L445 BasicCegarLoop]: Path program histogram: [3, 3, 2, 2, 1, 1, 1, 1, 1] [2023-11-29 05:08:37,517 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-29 05:08:37,529 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.11 05:08:37 BoogieIcfgContainer [2023-11-29 05:08:37,529 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-29 05:08:37,530 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-29 05:08:37,530 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-29 05:08:37,530 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-29 05:08:37,530 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 05:07:23" (3/4) ... [2023-11-29 05:08:37,532 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-29 05:08:37,540 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 16 nodes and edges [2023-11-29 05:08:37,540 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2023-11-29 05:08:37,541 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-29 05:08:37,541 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-29 05:08:37,630 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35e76ca5-0f7d-44f8-acaf-96692309b5c1/bin/uautomizer-verify-BQ2R08f2Ya/witness.graphml [2023-11-29 05:08:37,631 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35e76ca5-0f7d-44f8-acaf-96692309b5c1/bin/uautomizer-verify-BQ2R08f2Ya/witness.yml [2023-11-29 05:08:37,631 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-29 05:08:37,632 INFO L158 Benchmark]: Toolchain (without parser) took 74967.25ms. Allocated memory was 153.1MB in the beginning and 1.2GB in the end (delta: 1.1GB). Free memory was 125.0MB in the beginning and 581.7MB in the end (delta: -456.6MB). Peak memory consumption was 592.7MB. Max. memory is 16.1GB. [2023-11-29 05:08:37,632 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 123.7MB. Free memory is still 96.7MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-29 05:08:37,632 INFO L158 Benchmark]: CACSL2BoogieTranslator took 205.99ms. Allocated memory is still 153.1MB. Free memory was 125.0MB in the beginning and 114.4MB in the end (delta: 10.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-29 05:08:37,633 INFO L158 Benchmark]: Boogie Procedure Inliner took 34.17ms. Allocated memory is still 153.1MB. Free memory was 114.4MB in the beginning and 113.2MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-29 05:08:37,633 INFO L158 Benchmark]: Boogie Preprocessor took 42.40ms. Allocated memory is still 153.1MB. Free memory was 113.2MB in the beginning and 111.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-29 05:08:37,633 INFO L158 Benchmark]: RCFGBuilder took 345.24ms. Allocated memory is still 153.1MB. Free memory was 111.1MB in the beginning and 116.6MB in the end (delta: -5.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-11-29 05:08:37,634 INFO L158 Benchmark]: TraceAbstraction took 74231.50ms. Allocated memory was 153.1MB in the beginning and 1.2GB in the end (delta: 1.1GB). Free memory was 116.0MB in the beginning and 586.9MB in the end (delta: -470.9MB). Peak memory consumption was 582.9MB. Max. memory is 16.1GB. [2023-11-29 05:08:37,634 INFO L158 Benchmark]: Witness Printer took 101.30ms. Allocated memory is still 1.2GB. Free memory was 586.9MB in the beginning and 581.7MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-29 05:08:37,636 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20ms. Allocated memory is still 123.7MB. Free memory is still 96.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 205.99ms. Allocated memory is still 153.1MB. Free memory was 125.0MB in the beginning and 114.4MB in the end (delta: 10.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 34.17ms. Allocated memory is still 153.1MB. Free memory was 114.4MB in the beginning and 113.2MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 42.40ms. Allocated memory is still 153.1MB. Free memory was 113.2MB in the beginning and 111.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 345.24ms. Allocated memory is still 153.1MB. Free memory was 111.1MB in the beginning and 116.6MB in the end (delta: -5.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 74231.50ms. Allocated memory was 153.1MB in the beginning and 1.2GB in the end (delta: 1.1GB). Free memory was 116.0MB in the beginning and 586.9MB in the end (delta: -470.9MB). Peak memory consumption was 582.9MB. Max. memory is 16.1GB. * Witness Printer took 101.30ms. Allocated memory is still 1.2GB. Free memory was 586.9MB in the beginning and 581.7MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * 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: 19]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 19]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 23]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 23]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 27]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 27]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 24 locations, 6 error locations. Started 1 CEGAR loops. OverallTime: 74.2s, OverallIterations: 15, TraceHistogramMax: 127, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 14.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.3s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1908 SdHoareTripleChecker+Valid, 1.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1908 mSDsluCounter, 1060 SdHoareTripleChecker+Invalid, 1.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 874 mSDsCounter, 15 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1656 IncrementalHoareTripleChecker+Invalid, 1671 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 15 mSolverCounterUnsat, 186 mSDtfsCounter, 1656 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2094 GetRequests, 1032 SyntacticMatches, 0 SemanticMatches, 1062 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60162 ImplicationChecksByTransitivity, 45.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=404occurred in iteration=13, InterpolantAutomatonStates: 535, 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, 15 MinimizatonAttempts, 6 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 135 NumberOfFragments, 32 HoareAnnotationTreeSize, 3 FomulaSimplifications, 1331 FormulaSimplificationTreeSizeReduction, 0.3s HoareSimplificationTime, 3 FomulaSimplificationsInter, 39 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.8s SatisfiabilityAnalysisTime, 54.8s InterpolantComputationTime, 2374 NumberOfCodeBlocks, 1951 NumberOfCodeBlocksAsserted, 28 NumberOfCheckSat, 2777 ConstructedInterpolants, 0 QuantifiedInterpolants, 5831 SizeOfPredicates, 123 NumberOfNonLiveVariables, 2245 ConjunctsInSsa, 264 ConjunctsInUnsatCore, 30 InterpolantComputations, 9 PerfectInterpolantSequences, 50801/98217 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 6 specifications checked. All of them hold - InvariantResult [Line: 23]: Loop Invariant Derived loop invariant: ((0 <= (a + 2147483648)) && (0 <= (i + 2147483648))) - InvariantResult [Line: 19]: Loop Invariant Derived loop invariant: (0 < (2147483649 + a)) - InvariantResult [Line: 27]: Loop Invariant Derived loop invariant: (((0 <= (a + 2147483648)) && (0 <= (i + 2147483648))) && (0 <= (x + 2147483648))) RESULT: Ultimate proved your program to be correct! [2023-11-29 05:08:37,653 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35e76ca5-0f7d-44f8-acaf-96692309b5c1/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE