./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/array-examples/sorting_bubblesort_ground-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 527bcce2 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0367bbf5-7d0a-4a29-a665-3e4d242c4665/bin/uautomizer-verify-bycVGegfSx/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0367bbf5-7d0a-4a29-a665-3e4d242c4665/bin/uautomizer-verify-bycVGegfSx/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0367bbf5-7d0a-4a29-a665-3e4d242c4665/bin/uautomizer-verify-bycVGegfSx/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0367bbf5-7d0a-4a29-a665-3e4d242c4665/bin/uautomizer-verify-bycVGegfSx/config/AutomizerReach.xml -i ../../sv-benchmarks/c/array-examples/sorting_bubblesort_ground-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0367bbf5-7d0a-4a29-a665-3e4d242c4665/bin/uautomizer-verify-bycVGegfSx/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0367bbf5-7d0a-4a29-a665-3e4d242c4665/bin/uautomizer-verify-bycVGegfSx --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 2719a9efd2165050483c20571c85746fdd7204d074459e12a38b31692a3fffb0 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-527bcce [2023-11-21 22:11:21,082 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-21 22:11:21,197 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0367bbf5-7d0a-4a29-a665-3e4d242c4665/bin/uautomizer-verify-bycVGegfSx/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-11-21 22:11:21,204 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-21 22:11:21,205 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-21 22:11:21,244 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-21 22:11:21,246 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-21 22:11:21,246 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-21 22:11:21,247 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-21 22:11:21,252 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-21 22:11:21,253 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-21 22:11:21,254 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-21 22:11:21,255 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-21 22:11:21,257 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-21 22:11:21,257 INFO L153 SettingsManager]: * Use SBE=true [2023-11-21 22:11:21,258 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-21 22:11:21,258 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-21 22:11:21,259 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-21 22:11:21,259 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-21 22:11:21,261 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-21 22:11:21,261 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-21 22:11:21,262 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-21 22:11:21,262 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-21 22:11:21,263 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-21 22:11:21,263 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-21 22:11:21,264 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-21 22:11:21,264 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-21 22:11:21,265 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-21 22:11:21,265 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-21 22:11:21,266 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-21 22:11:21,267 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-21 22:11:21,268 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-21 22:11:21,268 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-21 22:11:21,268 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 22:11:21,268 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-21 22:11:21,269 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-21 22:11:21,269 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-21 22:11:21,269 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-21 22:11:21,269 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-21 22:11:21,270 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-21 22:11:21,270 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-21 22:11:21,270 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-21 22:11:21,270 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-21 22:11:21,271 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-21 22:11:21,271 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_0367bbf5-7d0a-4a29-a665-3e4d242c4665/bin/uautomizer-verify-bycVGegfSx/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0367bbf5-7d0a-4a29-a665-3e4d242c4665/bin/uautomizer-verify-bycVGegfSx Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2719a9efd2165050483c20571c85746fdd7204d074459e12a38b31692a3fffb0 [2023-11-21 22:11:21,602 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-21 22:11:21,634 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-21 22:11:21,637 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-21 22:11:21,638 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-21 22:11:21,639 INFO L274 PluginConnector]: CDTParser initialized [2023-11-21 22:11:21,640 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0367bbf5-7d0a-4a29-a665-3e4d242c4665/bin/uautomizer-verify-bycVGegfSx/../../sv-benchmarks/c/array-examples/sorting_bubblesort_ground-2.i [2023-11-21 22:11:24,775 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-21 22:11:24,985 INFO L384 CDTParser]: Found 1 translation units. [2023-11-21 22:11:24,985 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0367bbf5-7d0a-4a29-a665-3e4d242c4665/sv-benchmarks/c/array-examples/sorting_bubblesort_ground-2.i [2023-11-21 22:11:24,994 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0367bbf5-7d0a-4a29-a665-3e4d242c4665/bin/uautomizer-verify-bycVGegfSx/data/d100dfc12/d42fe3a6d4d84646872e4c148dde1684/FLAG5bb09d965 [2023-11-21 22:11:25,033 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0367bbf5-7d0a-4a29-a665-3e4d242c4665/bin/uautomizer-verify-bycVGegfSx/data/d100dfc12/d42fe3a6d4d84646872e4c148dde1684 [2023-11-21 22:11:25,036 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-21 22:11:25,037 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-21 22:11:25,039 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-21 22:11:25,039 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-21 22:11:25,081 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-21 22:11:25,082 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 10:11:25" (1/1) ... [2023-11-21 22:11:25,083 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4959adbf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:11:25, skipping insertion in model container [2023-11-21 22:11:25,083 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 10:11:25" (1/1) ... [2023-11-21 22:11:25,111 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-21 22:11:25,334 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 22:11:25,347 INFO L202 MainTranslator]: Completed pre-run [2023-11-21 22:11:25,391 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 22:11:25,411 INFO L206 MainTranslator]: Completed translation [2023-11-21 22:11:25,412 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:11:25 WrapperNode [2023-11-21 22:11:25,412 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-21 22:11:25,413 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-21 22:11:25,413 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-21 22:11:25,414 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-21 22:11:25,422 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:11:25" (1/1) ... [2023-11-21 22:11:25,441 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:11:25" (1/1) ... [2023-11-21 22:11:25,477 INFO L138 Inliner]: procedures = 16, calls = 20, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 104 [2023-11-21 22:11:25,478 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-21 22:11:25,479 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-21 22:11:25,479 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-21 22:11:25,479 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-21 22:11:25,491 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:11:25" (1/1) ... [2023-11-21 22:11:25,492 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:11:25" (1/1) ... [2023-11-21 22:11:25,498 INFO L184 PluginConnector]: Executing the observer HeapSplitter from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:11:25" (1/1) ... [2023-11-21 22:11:25,523 INFO L187 HeapSplitter]: Split 11 memory accesses to 2 slices as follows [2, 9] [2023-11-21 22:11:25,523 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:11:25" (1/1) ... [2023-11-21 22:11:25,523 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:11:25" (1/1) ... [2023-11-21 22:11:25,534 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:11:25" (1/1) ... [2023-11-21 22:11:25,542 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:11:25" (1/1) ... [2023-11-21 22:11:25,549 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:11:25" (1/1) ... [2023-11-21 22:11:25,550 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:11:25" (1/1) ... [2023-11-21 22:11:25,554 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-21 22:11:25,556 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-21 22:11:25,557 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-21 22:11:25,558 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-21 22:11:25,559 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:11:25" (1/1) ... [2023-11-21 22:11:25,566 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 22:11:25,579 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0367bbf5-7d0a-4a29-a665-3e4d242c4665/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:11:25,595 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0367bbf5-7d0a-4a29-a665-3e4d242c4665/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-21 22:11:25,627 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0367bbf5-7d0a-4a29-a665-3e4d242c4665/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-21 22:11:25,646 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-21 22:11:25,646 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-21 22:11:25,646 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2023-11-21 22:11:25,647 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-21 22:11:25,647 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2023-11-21 22:11:25,647 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2023-11-21 22:11:25,647 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-21 22:11:25,647 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-21 22:11:25,648 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2023-11-21 22:11:25,649 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2023-11-21 22:11:25,649 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-21 22:11:25,766 INFO L240 CfgBuilder]: Building ICFG [2023-11-21 22:11:25,768 INFO L266 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-21 22:11:26,012 INFO L281 CfgBuilder]: Performing block encoding [2023-11-21 22:11:26,123 INFO L303 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-21 22:11:26,123 INFO L308 CfgBuilder]: Removed 5 assume(true) statements. [2023-11-21 22:11:26,125 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:11:26 BoogieIcfgContainer [2023-11-21 22:11:26,125 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-21 22:11:26,128 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-21 22:11:26,130 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-21 22:11:26,134 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-21 22:11:26,134 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 10:11:25" (1/3) ... [2023-11-21 22:11:26,135 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a92ac7a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 10:11:26, skipping insertion in model container [2023-11-21 22:11:26,136 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:11:25" (2/3) ... [2023-11-21 22:11:26,136 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a92ac7a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 10:11:26, skipping insertion in model container [2023-11-21 22:11:26,136 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:11:26" (3/3) ... [2023-11-21 22:11:26,137 INFO L112 eAbstractionObserver]: Analyzing ICFG sorting_bubblesort_ground-2.i [2023-11-21 22:11:26,158 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-21 22:11:26,158 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 16 error locations. [2023-11-21 22:11:26,207 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-21 22:11:26,215 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;@5659b12b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-21 22:11:26,215 INFO L358 AbstractCegarLoop]: Starting to check reachability of 16 error locations. [2023-11-21 22:11:26,220 INFO L276 IsEmpty]: Start isEmpty. Operand has 40 states, 23 states have (on average 1.9565217391304348) internal successors, (45), 39 states have internal predecessors, (45), 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) [2023-11-21 22:11:26,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2023-11-21 22:11:26,228 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:11:26,229 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2023-11-21 22:11:26,231 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2023-11-21 22:11:26,240 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:11:26,241 INFO L85 PathProgramCache]: Analyzing trace with hash 158640, now seen corresponding path program 1 times [2023-11-21 22:11:26,252 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:11:26,252 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [439554703] [2023-11-21 22:11:26,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:11:26,253 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:11:26,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:11:26,529 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:11:26,530 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:11:26,530 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [439554703] [2023-11-21 22:11:26,531 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [439554703] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:11:26,531 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:11:26,531 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 22:11:26,533 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [224250241] [2023-11-21 22:11:26,534 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:11:26,537 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-21 22:11:26,537 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:11:26,566 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-21 22:11:26,567 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-21 22:11:26,569 INFO L87 Difference]: Start difference. First operand has 40 states, 23 states have (on average 1.9565217391304348) internal successors, (45), 39 states have internal predecessors, (45), 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) [2023-11-21 22:11:26,650 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:11:26,651 INFO L93 Difference]: Finished difference Result 79 states and 89 transitions. [2023-11-21 22:11:26,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-21 22:11:26,654 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 [2023-11-21 22:11:26,654 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:11:26,662 INFO L225 Difference]: With dead ends: 79 [2023-11-21 22:11:26,663 INFO L226 Difference]: Without dead ends: 42 [2023-11-21 22:11:26,666 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 [2023-11-21 22:11:26,672 INFO L413 NwaCegarLoop]: 35 mSDtfsCounter, 3 mSDsluCounter, 69 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 104 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-21 22:11:26,673 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 104 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-21 22:11:26,694 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2023-11-21 22:11:26,709 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 42. [2023-11-21 22:11:26,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42 states, 26 states have (on average 1.8076923076923077) internal successors, (47), 41 states have internal predecessors, (47), 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) [2023-11-21 22:11:26,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 47 transitions. [2023-11-21 22:11:26,713 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 47 transitions. Word has length 3 [2023-11-21 22:11:26,713 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:11:26,714 INFO L495 AbstractCegarLoop]: Abstraction has 42 states and 47 transitions. [2023-11-21 22:11:26,714 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) [2023-11-21 22:11:26,714 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 47 transitions. [2023-11-21 22:11:26,714 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-21 22:11:26,715 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:11:26,715 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1] [2023-11-21 22:11:26,715 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-21 22:11:26,716 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2023-11-21 22:11:26,716 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:11:26,716 INFO L85 PathProgramCache]: Analyzing trace with hash 431126030, now seen corresponding path program 1 times [2023-11-21 22:11:26,717 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:11:26,727 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1056328754] [2023-11-21 22:11:26,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:11:26,727 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:11:26,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:11:26,908 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:11:26,909 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:11:26,909 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1056328754] [2023-11-21 22:11:26,909 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1056328754] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-21 22:11:26,910 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1588165452] [2023-11-21 22:11:26,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:11:26,910 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 22:11:26,910 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0367bbf5-7d0a-4a29-a665-3e4d242c4665/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:11:26,913 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0367bbf5-7d0a-4a29-a665-3e4d242c4665/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-21 22:11:26,923 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0367bbf5-7d0a-4a29-a665-3e4d242c4665/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-21 22:11:26,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:11:26,983 INFO L262 TraceCheckSpWp]: Trace formula consists of 54 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-21 22:11:26,987 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 22:11:27,052 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:11:27,053 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-21 22:11:27,053 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1588165452] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:11:27,053 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-21 22:11:27,054 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2023-11-21 22:11:27,055 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [917915275] [2023-11-21 22:11:27,055 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:11:27,056 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-21 22:11:27,056 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:11:27,057 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-21 22:11:27,057 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-11-21 22:11:27,058 INFO L87 Difference]: Start difference. First operand 42 states and 47 transitions. Second operand has 6 states, 5 states have (on average 1.2) 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) [2023-11-21 22:11:27,116 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:11:27,116 INFO L93 Difference]: Finished difference Result 42 states and 47 transitions. [2023-11-21 22:11:27,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-21 22:11:27,117 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 1.2) 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 [2023-11-21 22:11:27,117 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:11:27,118 INFO L225 Difference]: With dead ends: 42 [2023-11-21 22:11:27,118 INFO L226 Difference]: Without dead ends: 41 [2023-11-21 22:11:27,119 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2023-11-21 22:11:27,121 INFO L413 NwaCegarLoop]: 33 mSDtfsCounter, 9 mSDsluCounter, 66 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 99 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-21 22:11:27,122 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 99 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-21 22:11:27,123 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2023-11-21 22:11:27,127 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41. [2023-11-21 22:11:27,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41 states, 26 states have (on average 1.7692307692307692) internal successors, (46), 40 states have internal predecessors, (46), 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) [2023-11-21 22:11:27,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 46 transitions. [2023-11-21 22:11:27,130 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 46 transitions. Word has length 6 [2023-11-21 22:11:27,130 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:11:27,130 INFO L495 AbstractCegarLoop]: Abstraction has 41 states and 46 transitions. [2023-11-21 22:11:27,131 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 1.2) 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) [2023-11-21 22:11:27,131 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 46 transitions. [2023-11-21 22:11:27,131 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-21 22:11:27,131 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:11:27,132 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1] [2023-11-21 22:11:27,155 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0367bbf5-7d0a-4a29-a665-3e4d242c4665/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-21 22:11:27,351 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0367bbf5-7d0a-4a29-a665-3e4d242c4665/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2023-11-21 22:11:27,351 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2023-11-21 22:11:27,352 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:11:27,352 INFO L85 PathProgramCache]: Analyzing trace with hash 480005088, now seen corresponding path program 1 times [2023-11-21 22:11:27,352 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:11:27,353 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1717755637] [2023-11-21 22:11:27,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:11:27,353 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:11:27,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:11:27,423 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-21 22:11:27,424 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:11:27,424 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1717755637] [2023-11-21 22:11:27,425 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1717755637] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:11:27,426 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:11:27,427 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 22:11:27,427 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [738665193] [2023-11-21 22:11:27,428 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:11:27,429 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 22:11:27,430 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:11:27,431 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 22:11:27,433 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:11:27,433 INFO L87 Difference]: Start difference. First operand 41 states and 46 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) [2023-11-21 22:11:27,469 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:11:27,473 INFO L93 Difference]: Finished difference Result 41 states and 46 transitions. [2023-11-21 22:11:27,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 22:11:27,474 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 [2023-11-21 22:11:27,474 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:11:27,475 INFO L225 Difference]: With dead ends: 41 [2023-11-21 22:11:27,476 INFO L226 Difference]: Without dead ends: 40 [2023-11-21 22:11:27,476 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 [2023-11-21 22:11:27,478 INFO L413 NwaCegarLoop]: 33 mSDtfsCounter, 0 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 66 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-21 22:11:27,478 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 66 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-21 22:11:27,479 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2023-11-21 22:11:27,482 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 38. [2023-11-21 22:11:27,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38 states, 24 states have (on average 1.7916666666666667) internal successors, (43), 37 states have internal predecessors, (43), 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) [2023-11-21 22:11:27,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 43 transitions. [2023-11-21 22:11:27,483 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 43 transitions. Word has length 7 [2023-11-21 22:11:27,483 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:11:27,484 INFO L495 AbstractCegarLoop]: Abstraction has 38 states and 43 transitions. [2023-11-21 22:11:27,484 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) [2023-11-21 22:11:27,484 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 43 transitions. [2023-11-21 22:11:27,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-21 22:11:27,484 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:11:27,485 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:11:27,485 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-21 22:11:27,485 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2023-11-21 22:11:27,486 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:11:27,486 INFO L85 PathProgramCache]: Analyzing trace with hash 1995699868, now seen corresponding path program 1 times [2023-11-21 22:11:27,487 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:11:27,487 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1196070238] [2023-11-21 22:11:27,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:11:27,487 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:11:27,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:11:27,621 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:11:27,622 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:11:27,622 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1196070238] [2023-11-21 22:11:27,622 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1196070238] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-21 22:11:27,623 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1165322280] [2023-11-21 22:11:27,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:11:27,623 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 22:11:27,623 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0367bbf5-7d0a-4a29-a665-3e4d242c4665/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:11:27,633 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0367bbf5-7d0a-4a29-a665-3e4d242c4665/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-21 22:11:27,654 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0367bbf5-7d0a-4a29-a665-3e4d242c4665/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-21 22:11:27,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:11:27,691 INFO L262 TraceCheckSpWp]: Trace formula consists of 53 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-21 22:11:27,692 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 22:11:27,704 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-21 22:11:27,705 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-21 22:11:27,705 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1165322280] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:11:27,706 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-21 22:11:27,706 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2023-11-21 22:11:27,706 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2143362598] [2023-11-21 22:11:27,709 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:11:27,709 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 22:11:27,710 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:11:27,710 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 22:11:27,711 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-21 22:11:27,711 INFO L87 Difference]: Start difference. First operand 38 states and 43 transitions. Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 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) [2023-11-21 22:11:27,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:11:27,762 INFO L93 Difference]: Finished difference Result 71 states and 80 transitions. [2023-11-21 22:11:27,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 22:11:27,763 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 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 [2023-11-21 22:11:27,763 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:11:27,764 INFO L225 Difference]: With dead ends: 71 [2023-11-21 22:11:27,764 INFO L226 Difference]: Without dead ends: 57 [2023-11-21 22:11:27,764 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-21 22:11:27,766 INFO L413 NwaCegarLoop]: 53 mSDtfsCounter, 19 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 86 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 [2023-11-21 22:11:27,767 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 86 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-21 22:11:27,768 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2023-11-21 22:11:27,772 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 45. [2023-11-21 22:11:27,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45 states, 31 states have (on average 1.8064516129032258) internal successors, (56), 44 states have internal predecessors, (56), 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) [2023-11-21 22:11:27,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 56 transitions. [2023-11-21 22:11:27,774 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 56 transitions. Word has length 8 [2023-11-21 22:11:27,778 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:11:27,779 INFO L495 AbstractCegarLoop]: Abstraction has 45 states and 56 transitions. [2023-11-21 22:11:27,779 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 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) [2023-11-21 22:11:27,779 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 56 transitions. [2023-11-21 22:11:27,780 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-21 22:11:27,780 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:11:27,780 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:11:27,807 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0367bbf5-7d0a-4a29-a665-3e4d242c4665/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-21 22:11:27,999 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0367bbf5-7d0a-4a29-a665-3e4d242c4665/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 22:11:28,000 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2023-11-21 22:11:28,000 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:11:28,001 INFO L85 PathProgramCache]: Analyzing trace with hash 1995598708, now seen corresponding path program 1 times [2023-11-21 22:11:28,001 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:11:28,001 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1595632110] [2023-11-21 22:11:28,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:11:28,002 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:11:28,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:11:28,110 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:11:28,111 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:11:28,111 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1595632110] [2023-11-21 22:11:28,111 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1595632110] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-21 22:11:28,111 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1259899299] [2023-11-21 22:11:28,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:11:28,112 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 22:11:28,112 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0367bbf5-7d0a-4a29-a665-3e4d242c4665/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:11:28,113 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0367bbf5-7d0a-4a29-a665-3e4d242c4665/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-21 22:11:28,118 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0367bbf5-7d0a-4a29-a665-3e4d242c4665/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-21 22:11:28,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:11:28,173 INFO L262 TraceCheckSpWp]: Trace formula consists of 54 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-21 22:11:28,174 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 22:11:28,185 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-21 22:11:28,185 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-21 22:11:28,186 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1259899299] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:11:28,186 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-21 22:11:28,186 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 6 [2023-11-21 22:11:28,186 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [79387300] [2023-11-21 22:11:28,187 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:11:28,187 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 22:11:28,187 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:11:28,188 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 22:11:28,188 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-21 22:11:28,188 INFO L87 Difference]: Start difference. First operand 45 states and 56 transitions. Second operand has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 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) [2023-11-21 22:11:28,252 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:11:28,252 INFO L93 Difference]: Finished difference Result 45 states and 56 transitions. [2023-11-21 22:11:28,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 22:11:28,253 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 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 8 [2023-11-21 22:11:28,254 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:11:28,258 INFO L225 Difference]: With dead ends: 45 [2023-11-21 22:11:28,260 INFO L226 Difference]: Without dead ends: 41 [2023-11-21 22:11:28,261 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-21 22:11:28,262 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 13 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 32 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-21 22:11:28,265 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 32 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-21 22:11:28,267 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2023-11-21 22:11:28,273 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41. [2023-11-21 22:11:28,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41 states, 31 states have (on average 1.6129032258064515) internal successors, (50), 40 states have internal predecessors, (50), 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) [2023-11-21 22:11:28,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 50 transitions. [2023-11-21 22:11:28,279 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 50 transitions. Word has length 8 [2023-11-21 22:11:28,281 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:11:28,281 INFO L495 AbstractCegarLoop]: Abstraction has 41 states and 50 transitions. [2023-11-21 22:11:28,281 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 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) [2023-11-21 22:11:28,282 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 50 transitions. [2023-11-21 22:11:28,282 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-11-21 22:11:28,282 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:11:28,282 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:11:28,298 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0367bbf5-7d0a-4a29-a665-3e4d242c4665/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-11-21 22:11:28,495 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0367bbf5-7d0a-4a29-a665-3e4d242c4665/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 22:11:28,495 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2023-11-21 22:11:28,496 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:11:28,496 INFO L85 PathProgramCache]: Analyzing trace with hash 1734017876, now seen corresponding path program 1 times [2023-11-21 22:11:28,496 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:11:28,496 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [950753824] [2023-11-21 22:11:28,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:11:28,497 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:11:28,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:11:28,550 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:11:28,551 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:11:28,551 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [950753824] [2023-11-21 22:11:28,551 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [950753824] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-21 22:11:28,551 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [553781174] [2023-11-21 22:11:28,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:11:28,552 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 22:11:28,552 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0367bbf5-7d0a-4a29-a665-3e4d242c4665/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:11:28,553 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0367bbf5-7d0a-4a29-a665-3e4d242c4665/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-21 22:11:28,579 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0367bbf5-7d0a-4a29-a665-3e4d242c4665/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-21 22:11:28,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:11:28,620 INFO L262 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-21 22:11:28,621 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 22:11:28,637 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-21 22:11:28,637 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-21 22:11:28,637 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [553781174] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:11:28,637 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-21 22:11:28,638 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 6 [2023-11-21 22:11:28,638 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2115452564] [2023-11-21 22:11:28,638 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:11:28,639 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 22:11:28,639 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:11:28,639 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 22:11:28,640 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-21 22:11:28,640 INFO L87 Difference]: Start difference. First operand 41 states and 50 transitions. Second operand has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 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) [2023-11-21 22:11:28,705 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:11:28,706 INFO L93 Difference]: Finished difference Result 89 states and 113 transitions. [2023-11-21 22:11:28,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 22:11:28,707 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 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 9 [2023-11-21 22:11:28,707 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:11:28,708 INFO L225 Difference]: With dead ends: 89 [2023-11-21 22:11:28,708 INFO L226 Difference]: Without dead ends: 53 [2023-11-21 22:11:28,708 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-21 22:11:28,710 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 8 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 37 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-21 22:11:28,710 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 37 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-21 22:11:28,711 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2023-11-21 22:11:28,716 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 53. [2023-11-21 22:11:28,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53 states, 43 states have (on average 1.4651162790697674) internal successors, (63), 52 states have internal predecessors, (63), 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) [2023-11-21 22:11:28,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 63 transitions. [2023-11-21 22:11:28,718 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 63 transitions. Word has length 9 [2023-11-21 22:11:28,719 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:11:28,719 INFO L495 AbstractCegarLoop]: Abstraction has 53 states and 63 transitions. [2023-11-21 22:11:28,719 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 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) [2023-11-21 22:11:28,719 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 63 transitions. [2023-11-21 22:11:28,720 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2023-11-21 22:11:28,720 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:11:28,720 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:11:28,749 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0367bbf5-7d0a-4a29-a665-3e4d242c4665/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-11-21 22:11:28,941 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0367bbf5-7d0a-4a29-a665-3e4d242c4665/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 22:11:28,942 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2023-11-21 22:11:28,942 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:11:28,942 INFO L85 PathProgramCache]: Analyzing trace with hash -614062365, now seen corresponding path program 1 times [2023-11-21 22:11:28,942 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:11:28,943 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [526159175] [2023-11-21 22:11:28,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:11:28,943 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:11:28,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:11:29,026 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-21 22:11:29,026 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:11:29,026 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [526159175] [2023-11-21 22:11:29,031 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [526159175] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-21 22:11:29,031 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1204905037] [2023-11-21 22:11:29,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:11:29,031 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 22:11:29,032 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0367bbf5-7d0a-4a29-a665-3e4d242c4665/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:11:29,043 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0367bbf5-7d0a-4a29-a665-3e4d242c4665/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-21 22:11:29,083 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0367bbf5-7d0a-4a29-a665-3e4d242c4665/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-21 22:11:29,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:11:29,132 INFO L262 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-21 22:11:29,138 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 22:11:29,151 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-21 22:11:29,151 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-21 22:11:29,152 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1204905037] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:11:29,152 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-21 22:11:29,152 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 6 [2023-11-21 22:11:29,153 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [994069361] [2023-11-21 22:11:29,153 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:11:29,153 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 22:11:29,154 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:11:29,154 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 22:11:29,155 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-21 22:11:29,155 INFO L87 Difference]: Start difference. First operand 53 states and 63 transitions. Second operand has 3 states, 2 states have (on average 7.5) internal successors, (15), 3 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) [2023-11-21 22:11:29,193 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:11:29,193 INFO L93 Difference]: Finished difference Result 53 states and 63 transitions. [2023-11-21 22:11:29,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 22:11:29,194 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 7.5) internal successors, (15), 3 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 15 [2023-11-21 22:11:29,194 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:11:29,195 INFO L225 Difference]: With dead ends: 53 [2023-11-21 22:11:29,195 INFO L226 Difference]: Without dead ends: 49 [2023-11-21 22:11:29,195 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-21 22:11:29,197 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 8 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 32 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-21 22:11:29,197 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 32 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-21 22:11:29,200 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2023-11-21 22:11:29,208 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 38. [2023-11-21 22:11:29,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38 states, 32 states have (on average 1.40625) internal successors, (45), 37 states have internal predecessors, (45), 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) [2023-11-21 22:11:29,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 45 transitions. [2023-11-21 22:11:29,212 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 45 transitions. Word has length 15 [2023-11-21 22:11:29,213 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:11:29,213 INFO L495 AbstractCegarLoop]: Abstraction has 38 states and 45 transitions. [2023-11-21 22:11:29,214 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 7.5) internal successors, (15), 3 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) [2023-11-21 22:11:29,219 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 45 transitions. [2023-11-21 22:11:29,220 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2023-11-21 22:11:29,220 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:11:29,220 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:11:29,250 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0367bbf5-7d0a-4a29-a665-3e4d242c4665/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-11-21 22:11:29,431 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0367bbf5-7d0a-4a29-a665-3e4d242c4665/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 22:11:29,431 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2023-11-21 22:11:29,432 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:11:29,432 INFO L85 PathProgramCache]: Analyzing trace with hash -1852905123, now seen corresponding path program 1 times [2023-11-21 22:11:29,432 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:11:29,432 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1026922430] [2023-11-21 22:11:29,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:11:29,432 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:11:29,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:11:29,527 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-21 22:11:29,531 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:11:29,531 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1026922430] [2023-11-21 22:11:29,532 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1026922430] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-21 22:11:29,532 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1862159602] [2023-11-21 22:11:29,532 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:11:29,532 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 22:11:29,532 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0367bbf5-7d0a-4a29-a665-3e4d242c4665/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:11:29,533 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0367bbf5-7d0a-4a29-a665-3e4d242c4665/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-21 22:11:29,562 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0367bbf5-7d0a-4a29-a665-3e4d242c4665/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-11-21 22:11:29,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:11:29,598 INFO L262 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-21 22:11:29,599 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 22:11:29,615 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-21 22:11:29,616 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-21 22:11:29,616 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1862159602] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:11:29,616 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-21 22:11:29,616 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 6 [2023-11-21 22:11:29,616 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [109858806] [2023-11-21 22:11:29,617 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:11:29,617 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 22:11:29,617 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:11:29,618 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 22:11:29,618 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-21 22:11:29,618 INFO L87 Difference]: Start difference. First operand 38 states and 45 transitions. Second operand has 3 states, 2 states have (on average 8.0) internal successors, (16), 3 states have internal predecessors, (16), 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) [2023-11-21 22:11:29,656 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:11:29,656 INFO L93 Difference]: Finished difference Result 51 states and 60 transitions. [2023-11-21 22:11:29,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 22:11:29,657 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 8.0) internal successors, (16), 3 states have internal predecessors, (16), 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 16 [2023-11-21 22:11:29,657 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:11:29,662 INFO L225 Difference]: With dead ends: 51 [2023-11-21 22:11:29,662 INFO L226 Difference]: Without dead ends: 50 [2023-11-21 22:11:29,663 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-21 22:11:29,664 INFO L413 NwaCegarLoop]: 23 mSDtfsCounter, 12 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 44 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 [2023-11-21 22:11:29,665 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 44 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-21 22:11:29,666 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2023-11-21 22:11:29,676 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 40. [2023-11-21 22:11:29,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40 states, 34 states have (on average 1.3823529411764706) internal successors, (47), 39 states have internal predecessors, (47), 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) [2023-11-21 22:11:29,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 47 transitions. [2023-11-21 22:11:29,677 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 47 transitions. Word has length 16 [2023-11-21 22:11:29,677 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:11:29,678 INFO L495 AbstractCegarLoop]: Abstraction has 40 states and 47 transitions. [2023-11-21 22:11:29,678 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 8.0) internal successors, (16), 3 states have internal predecessors, (16), 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) [2023-11-21 22:11:29,678 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 47 transitions. [2023-11-21 22:11:29,679 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2023-11-21 22:11:29,680 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:11:29,680 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:11:29,715 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0367bbf5-7d0a-4a29-a665-3e4d242c4665/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-11-21 22:11:29,906 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0367bbf5-7d0a-4a29-a665-3e4d242c4665/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2023-11-21 22:11:29,906 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2023-11-21 22:11:29,907 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:11:29,907 INFO L85 PathProgramCache]: Analyzing trace with hash -1605483855, now seen corresponding path program 1 times [2023-11-21 22:11:29,907 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:11:29,907 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1307269853] [2023-11-21 22:11:29,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:11:29,908 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:11:29,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:11:29,986 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-21 22:11:29,987 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:11:29,987 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1307269853] [2023-11-21 22:11:29,987 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1307269853] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-21 22:11:29,987 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [648728852] [2023-11-21 22:11:29,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:11:29,988 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 22:11:29,988 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0367bbf5-7d0a-4a29-a665-3e4d242c4665/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:11:29,989 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0367bbf5-7d0a-4a29-a665-3e4d242c4665/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-21 22:11:30,011 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0367bbf5-7d0a-4a29-a665-3e4d242c4665/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-11-21 22:11:30,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:11:30,052 INFO L262 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-21 22:11:30,053 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 22:11:30,066 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-21 22:11:30,066 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-21 22:11:30,067 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [648728852] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:11:30,067 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-21 22:11:30,067 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 6 [2023-11-21 22:11:30,067 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1427914339] [2023-11-21 22:11:30,067 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:11:30,068 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 22:11:30,068 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:11:30,068 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 22:11:30,069 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-21 22:11:30,069 INFO L87 Difference]: Start difference. First operand 40 states and 47 transitions. Second operand has 3 states, 2 states have (on average 8.5) internal successors, (17), 3 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) [2023-11-21 22:11:30,098 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:11:30,099 INFO L93 Difference]: Finished difference Result 51 states and 59 transitions. [2023-11-21 22:11:30,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 22:11:30,099 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 8.5) internal successors, (17), 3 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 17 [2023-11-21 22:11:30,100 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:11:30,100 INFO L225 Difference]: With dead ends: 51 [2023-11-21 22:11:30,100 INFO L226 Difference]: Without dead ends: 50 [2023-11-21 22:11:30,101 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-21 22:11:30,102 INFO L413 NwaCegarLoop]: 24 mSDtfsCounter, 10 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 45 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-21 22:11:30,102 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 45 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-21 22:11:30,103 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2023-11-21 22:11:30,108 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 41. [2023-11-21 22:11:30,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41 states, 35 states have (on average 1.3714285714285714) internal successors, (48), 40 states have internal predecessors, (48), 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) [2023-11-21 22:11:30,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 48 transitions. [2023-11-21 22:11:30,120 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 48 transitions. Word has length 17 [2023-11-21 22:11:30,120 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:11:30,120 INFO L495 AbstractCegarLoop]: Abstraction has 41 states and 48 transitions. [2023-11-21 22:11:30,121 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 8.5) internal successors, (17), 3 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) [2023-11-21 22:11:30,121 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 48 transitions. [2023-11-21 22:11:30,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2023-11-21 22:11:30,122 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:11:30,122 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:11:30,151 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0367bbf5-7d0a-4a29-a665-3e4d242c4665/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-11-21 22:11:30,343 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0367bbf5-7d0a-4a29-a665-3e4d242c4665/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2023-11-21 22:11:30,343 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2023-11-21 22:11:30,344 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:11:30,344 INFO L85 PathProgramCache]: Analyzing trace with hash -976719766, now seen corresponding path program 1 times [2023-11-21 22:11:30,344 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:11:30,344 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [859728737] [2023-11-21 22:11:30,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:11:30,344 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:11:30,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:11:30,408 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-21 22:11:30,408 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:11:30,408 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [859728737] [2023-11-21 22:11:30,408 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [859728737] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-21 22:11:30,408 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1223817067] [2023-11-21 22:11:30,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:11:30,409 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 22:11:30,409 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0367bbf5-7d0a-4a29-a665-3e4d242c4665/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:11:30,410 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0367bbf5-7d0a-4a29-a665-3e4d242c4665/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-21 22:11:30,427 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0367bbf5-7d0a-4a29-a665-3e4d242c4665/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-11-21 22:11:30,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:11:30,477 INFO L262 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-21 22:11:30,480 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 22:11:30,503 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-21 22:11:30,504 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-21 22:11:30,538 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-21 22:11:30,539 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1223817067] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-21 22:11:30,539 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-21 22:11:30,539 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 9 [2023-11-21 22:11:30,540 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1946916833] [2023-11-21 22:11:30,540 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-21 22:11:30,540 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-21 22:11:30,540 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:11:30,541 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-21 22:11:30,541 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2023-11-21 22:11:30,542 INFO L87 Difference]: Start difference. First operand 41 states and 48 transitions. Second operand has 10 states, 10 states have (on average 2.8) internal successors, (28), 9 states have internal predecessors, (28), 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) [2023-11-21 22:11:30,599 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:11:30,599 INFO L93 Difference]: Finished difference Result 83 states and 98 transitions. [2023-11-21 22:11:30,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-21 22:11:30,600 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 2.8) internal successors, (28), 9 states have internal predecessors, (28), 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 19 [2023-11-21 22:11:30,601 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:11:30,601 INFO L225 Difference]: With dead ends: 83 [2023-11-21 22:11:30,601 INFO L226 Difference]: Without dead ends: 47 [2023-11-21 22:11:30,602 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2023-11-21 22:11:30,603 INFO L413 NwaCegarLoop]: 25 mSDtfsCounter, 14 mSDsluCounter, 101 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 126 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-21 22:11:30,603 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 126 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-21 22:11:30,604 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2023-11-21 22:11:30,608 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 47. [2023-11-21 22:11:30,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47 states, 41 states have (on average 1.3170731707317074) internal successors, (54), 46 states have internal predecessors, (54), 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) [2023-11-21 22:11:30,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 54 transitions. [2023-11-21 22:11:30,609 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 54 transitions. Word has length 19 [2023-11-21 22:11:30,610 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:11:30,610 INFO L495 AbstractCegarLoop]: Abstraction has 47 states and 54 transitions. [2023-11-21 22:11:30,610 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 2.8) internal successors, (28), 9 states have internal predecessors, (28), 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) [2023-11-21 22:11:30,610 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 54 transitions. [2023-11-21 22:11:30,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2023-11-21 22:11:30,612 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:11:30,612 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:11:30,637 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0367bbf5-7d0a-4a29-a665-3e4d242c4665/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2023-11-21 22:11:30,835 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0367bbf5-7d0a-4a29-a665-3e4d242c4665/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2023-11-21 22:11:30,835 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2023-11-21 22:11:30,836 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:11:30,836 INFO L85 PathProgramCache]: Analyzing trace with hash -929010774, now seen corresponding path program 2 times [2023-11-21 22:11:30,836 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:11:30,836 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1434270856] [2023-11-21 22:11:30,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:11:30,837 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:11:30,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:11:30,903 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-21 22:11:30,903 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:11:30,903 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1434270856] [2023-11-21 22:11:30,903 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1434270856] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-21 22:11:30,904 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2056652167] [2023-11-21 22:11:30,904 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-21 22:11:30,904 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 22:11:30,904 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0367bbf5-7d0a-4a29-a665-3e4d242c4665/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:11:30,905 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0367bbf5-7d0a-4a29-a665-3e4d242c4665/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-21 22:11:30,934 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0367bbf5-7d0a-4a29-a665-3e4d242c4665/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-11-21 22:11:30,987 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-11-21 22:11:30,987 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-21 22:11:30,988 INFO L262 TraceCheckSpWp]: Trace formula consists of 52 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-21 22:11:30,990 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 22:11:31,032 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-11-21 22:11:31,032 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-21 22:11:31,032 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2056652167] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:11:31,033 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-21 22:11:31,033 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 7 [2023-11-21 22:11:31,033 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1630569330] [2023-11-21 22:11:31,034 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:11:31,034 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-21 22:11:31,034 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:11:31,035 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-21 22:11:31,035 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-11-21 22:11:31,035 INFO L87 Difference]: Start difference. First operand 47 states and 54 transitions. Second operand has 5 states, 4 states have (on average 4.75) internal successors, (19), 5 states have internal predecessors, (19), 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) [2023-11-21 22:11:31,105 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:11:31,105 INFO L93 Difference]: Finished difference Result 56 states and 64 transitions. [2023-11-21 22:11:31,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-21 22:11:31,106 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.75) internal successors, (19), 5 states have internal predecessors, (19), 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 25 [2023-11-21 22:11:31,107 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:11:31,108 INFO L225 Difference]: With dead ends: 56 [2023-11-21 22:11:31,108 INFO L226 Difference]: Without dead ends: 55 [2023-11-21 22:11:31,108 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2023-11-21 22:11:31,109 INFO L413 NwaCegarLoop]: 24 mSDtfsCounter, 27 mSDsluCounter, 61 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 85 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-21 22:11:31,110 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 85 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-21 22:11:31,111 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2023-11-21 22:11:31,116 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 50. [2023-11-21 22:11:31,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50 states, 44 states have (on average 1.3409090909090908) internal successors, (59), 49 states have internal predecessors, (59), 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) [2023-11-21 22:11:31,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 59 transitions. [2023-11-21 22:11:31,118 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 59 transitions. Word has length 25 [2023-11-21 22:11:31,118 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:11:31,119 INFO L495 AbstractCegarLoop]: Abstraction has 50 states and 59 transitions. [2023-11-21 22:11:31,119 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.75) internal successors, (19), 5 states have internal predecessors, (19), 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) [2023-11-21 22:11:31,119 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 59 transitions. [2023-11-21 22:11:31,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2023-11-21 22:11:31,122 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:11:31,122 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:11:31,142 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0367bbf5-7d0a-4a29-a665-3e4d242c4665/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2023-11-21 22:11:31,335 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0367bbf5-7d0a-4a29-a665-3e4d242c4665/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 22:11:31,335 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2023-11-21 22:11:31,336 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:11:31,336 INFO L85 PathProgramCache]: Analyzing trace with hash -929011138, now seen corresponding path program 1 times [2023-11-21 22:11:31,336 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:11:31,336 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [42157851] [2023-11-21 22:11:31,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:11:31,337 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:11:31,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:11:31,414 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-21 22:11:31,414 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:11:31,414 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [42157851] [2023-11-21 22:11:31,415 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [42157851] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-21 22:11:31,415 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1823854749] [2023-11-21 22:11:31,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:11:31,415 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 22:11:31,415 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0367bbf5-7d0a-4a29-a665-3e4d242c4665/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:11:31,421 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0367bbf5-7d0a-4a29-a665-3e4d242c4665/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-21 22:11:31,456 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0367bbf5-7d0a-4a29-a665-3e4d242c4665/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-11-21 22:11:31,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:11:31,537 INFO L262 TraceCheckSpWp]: Trace formula consists of 104 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-21 22:11:31,539 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 22:11:31,609 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-21 22:11:31,609 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-21 22:11:31,727 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-21 22:11:31,728 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1823854749] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-21 22:11:31,728 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-21 22:11:31,728 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 8, 8] total 18 [2023-11-21 22:11:31,728 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [557911232] [2023-11-21 22:11:31,729 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-21 22:11:31,729 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2023-11-21 22:11:31,729 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:11:31,730 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2023-11-21 22:11:31,730 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=229, Unknown=0, NotChecked=0, Total=306 [2023-11-21 22:11:31,731 INFO L87 Difference]: Start difference. First operand 50 states and 59 transitions. Second operand has 18 states, 18 states have (on average 2.7222222222222223) internal successors, (49), 18 states have internal predecessors, (49), 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) [2023-11-21 22:11:31,960 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:11:31,960 INFO L93 Difference]: Finished difference Result 128 states and 154 transitions. [2023-11-21 22:11:31,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-11-21 22:11:31,961 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.7222222222222223) internal successors, (49), 18 states have internal predecessors, (49), 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 25 [2023-11-21 22:11:31,962 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:11:31,963 INFO L225 Difference]: With dead ends: 128 [2023-11-21 22:11:31,963 INFO L226 Difference]: Without dead ends: 89 [2023-11-21 22:11:31,964 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=156, Invalid=396, Unknown=0, NotChecked=0, Total=552 [2023-11-21 22:11:31,965 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 44 mSDsluCounter, 106 mSDsCounter, 0 mSdLazyCounter, 177 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 121 SdHoareTripleChecker+Invalid, 178 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 177 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-21 22:11:31,966 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [44 Valid, 121 Invalid, 178 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 177 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-21 22:11:31,966 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2023-11-21 22:11:31,981 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 75. [2023-11-21 22:11:31,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75 states, 69 states have (on average 1.2318840579710144) internal successors, (85), 74 states have internal predecessors, (85), 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) [2023-11-21 22:11:31,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 85 transitions. [2023-11-21 22:11:31,982 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 85 transitions. Word has length 25 [2023-11-21 22:11:31,982 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:11:31,982 INFO L495 AbstractCegarLoop]: Abstraction has 75 states and 85 transitions. [2023-11-21 22:11:31,983 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.7222222222222223) internal successors, (49), 18 states have internal predecessors, (49), 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) [2023-11-21 22:11:31,983 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 85 transitions. [2023-11-21 22:11:31,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2023-11-21 22:11:31,991 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:11:31,991 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:11:32,018 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0367bbf5-7d0a-4a29-a665-3e4d242c4665/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2023-11-21 22:11:32,207 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0367bbf5-7d0a-4a29-a665-3e4d242c4665/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 22:11:32,208 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2023-11-21 22:11:32,208 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:11:32,208 INFO L85 PathProgramCache]: Analyzing trace with hash 931331469, now seen corresponding path program 2 times [2023-11-21 22:11:32,208 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:11:32,209 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [710956919] [2023-11-21 22:11:32,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:11:32,209 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:11:32,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:11:32,294 INFO L134 CoverageAnalysis]: Checked inductivity of 79 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 79 trivial. 0 not checked. [2023-11-21 22:11:32,294 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:11:32,295 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [710956919] [2023-11-21 22:11:32,295 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [710956919] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:11:32,295 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:11:32,295 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-21 22:11:32,295 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [416684745] [2023-11-21 22:11:32,296 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:11:32,296 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-21 22:11:32,296 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:11:32,297 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-21 22:11:32,297 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-21 22:11:32,297 INFO L87 Difference]: Start difference. First operand 75 states and 85 transitions. Second operand has 4 states, 3 states have (on average 6.333333333333333) internal successors, (19), 4 states have internal predecessors, (19), 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) [2023-11-21 22:11:32,340 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:11:32,340 INFO L93 Difference]: Finished difference Result 80 states and 89 transitions. [2023-11-21 22:11:32,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-21 22:11:32,341 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 6.333333333333333) internal successors, (19), 4 states have internal predecessors, (19), 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 43 [2023-11-21 22:11:32,342 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:11:32,342 INFO L225 Difference]: With dead ends: 80 [2023-11-21 22:11:32,342 INFO L226 Difference]: Without dead ends: 78 [2023-11-21 22:11:32,343 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 [2023-11-21 22:11:32,344 INFO L413 NwaCegarLoop]: 22 mSDtfsCounter, 7 mSDsluCounter, 41 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 63 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-21 22:11:32,344 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 63 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-21 22:11:32,345 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2023-11-21 22:11:32,349 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 77. [2023-11-21 22:11:32,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77 states, 71 states have (on average 1.2253521126760563) internal successors, (87), 76 states have internal predecessors, (87), 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) [2023-11-21 22:11:32,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 87 transitions. [2023-11-21 22:11:32,350 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 87 transitions. Word has length 43 [2023-11-21 22:11:32,350 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:11:32,351 INFO L495 AbstractCegarLoop]: Abstraction has 77 states and 87 transitions. [2023-11-21 22:11:32,351 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 6.333333333333333) internal successors, (19), 4 states have internal predecessors, (19), 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) [2023-11-21 22:11:32,351 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 87 transitions. [2023-11-21 22:11:32,352 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2023-11-21 22:11:32,352 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:11:32,352 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:11:32,352 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-11-21 22:11:32,353 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2023-11-21 22:11:32,353 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:11:32,353 INFO L85 PathProgramCache]: Analyzing trace with hash -1193484109, now seen corresponding path program 1 times [2023-11-21 22:11:32,354 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:11:32,354 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1995124147] [2023-11-21 22:11:32,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:11:32,354 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:11:32,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:11:32,441 INFO L134 CoverageAnalysis]: Checked inductivity of 79 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 79 trivial. 0 not checked. [2023-11-21 22:11:32,441 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:11:32,441 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1995124147] [2023-11-21 22:11:32,441 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1995124147] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:11:32,441 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:11:32,442 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 22:11:32,442 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [749456072] [2023-11-21 22:11:32,442 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:11:32,442 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 22:11:32,443 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:11:32,443 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 22:11:32,443 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:11:32,444 INFO L87 Difference]: Start difference. First operand 77 states and 87 transitions. Second operand has 3 states, 2 states have (on average 10.0) internal successors, (20), 3 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) [2023-11-21 22:11:32,462 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:11:32,462 INFO L93 Difference]: Finished difference Result 77 states and 87 transitions. [2023-11-21 22:11:32,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 22:11:32,463 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 10.0) internal successors, (20), 3 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 44 [2023-11-21 22:11:32,463 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:11:32,464 INFO L225 Difference]: With dead ends: 77 [2023-11-21 22:11:32,464 INFO L226 Difference]: Without dead ends: 76 [2023-11-21 22:11:32,465 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 [2023-11-21 22:11:32,465 INFO L413 NwaCegarLoop]: 23 mSDtfsCounter, 1 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 46 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-21 22:11:32,466 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 46 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-21 22:11:32,466 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2023-11-21 22:11:32,470 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 76. [2023-11-21 22:11:32,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 76 states, 71 states have (on average 1.1971830985915493) internal successors, (85), 75 states have internal predecessors, (85), 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) [2023-11-21 22:11:32,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 85 transitions. [2023-11-21 22:11:32,471 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 85 transitions. Word has length 44 [2023-11-21 22:11:32,472 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:11:32,472 INFO L495 AbstractCegarLoop]: Abstraction has 76 states and 85 transitions. [2023-11-21 22:11:32,472 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 10.0) internal successors, (20), 3 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) [2023-11-21 22:11:32,472 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 85 transitions. [2023-11-21 22:11:32,473 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2023-11-21 22:11:32,473 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:11:32,473 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:11:32,473 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-11-21 22:11:32,474 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2023-11-21 22:11:32,474 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:11:32,474 INFO L85 PathProgramCache]: Analyzing trace with hash -192793559, now seen corresponding path program 1 times [2023-11-21 22:11:32,475 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:11:32,475 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2139735563] [2023-11-21 22:11:32,475 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:11:32,475 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:11:32,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:11:32,557 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 79 trivial. 0 not checked. [2023-11-21 22:11:32,557 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:11:32,558 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2139735563] [2023-11-21 22:11:32,558 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2139735563] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:11:32,558 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:11:32,558 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-21 22:11:32,558 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [736248359] [2023-11-21 22:11:32,558 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:11:32,559 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-21 22:11:32,559 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:11:32,559 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-21 22:11:32,560 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-21 22:11:32,560 INFO L87 Difference]: Start difference. First operand 76 states and 85 transitions. Second operand has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 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) [2023-11-21 22:11:32,596 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:11:32,596 INFO L93 Difference]: Finished difference Result 94 states and 105 transitions. [2023-11-21 22:11:32,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-21 22:11:32,597 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 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 46 [2023-11-21 22:11:32,597 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:11:32,598 INFO L225 Difference]: With dead ends: 94 [2023-11-21 22:11:32,598 INFO L226 Difference]: Without dead ends: 79 [2023-11-21 22:11:32,599 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-21 22:11:32,599 INFO L413 NwaCegarLoop]: 23 mSDtfsCounter, 10 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 45 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-21 22:11:32,600 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 45 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-21 22:11:32,600 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states. [2023-11-21 22:11:32,604 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 77. [2023-11-21 22:11:32,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77 states, 72 states have (on average 1.1944444444444444) internal successors, (86), 76 states have internal predecessors, (86), 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) [2023-11-21 22:11:32,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 86 transitions. [2023-11-21 22:11:32,606 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 86 transitions. Word has length 46 [2023-11-21 22:11:32,606 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:11:32,606 INFO L495 AbstractCegarLoop]: Abstraction has 77 states and 86 transitions. [2023-11-21 22:11:32,606 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 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) [2023-11-21 22:11:32,607 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 86 transitions. [2023-11-21 22:11:32,607 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2023-11-21 22:11:32,607 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:11:32,608 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:11:32,608 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-11-21 22:11:32,608 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2023-11-21 22:11:32,608 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:11:32,609 INFO L85 PathProgramCache]: Analyzing trace with hash -386116522, now seen corresponding path program 1 times [2023-11-21 22:11:32,609 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:11:32,609 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [150648873] [2023-11-21 22:11:32,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:11:32,609 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:11:32,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:11:32,708 INFO L134 CoverageAnalysis]: Checked inductivity of 82 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2023-11-21 22:11:32,708 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:11:32,708 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [150648873] [2023-11-21 22:11:32,708 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [150648873] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-21 22:11:32,709 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1047459593] [2023-11-21 22:11:32,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:11:32,709 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 22:11:32,709 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0367bbf5-7d0a-4a29-a665-3e4d242c4665/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:11:32,710 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0367bbf5-7d0a-4a29-a665-3e4d242c4665/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-21 22:11:32,744 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0367bbf5-7d0a-4a29-a665-3e4d242c4665/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2023-11-21 22:11:32,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:11:32,816 INFO L262 TraceCheckSpWp]: Trace formula consists of 185 conjuncts, 16 conjunts are in the unsatisfiable core [2023-11-21 22:11:32,819 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 22:11:33,067 INFO L134 CoverageAnalysis]: Checked inductivity of 82 backedges. 0 proven. 70 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-21 22:11:33,067 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-21 22:11:33,462 INFO L134 CoverageAnalysis]: Checked inductivity of 82 backedges. 0 proven. 70 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-21 22:11:33,463 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1047459593] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-21 22:11:33,463 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-21 22:11:33,463 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 16, 16] total 35 [2023-11-21 22:11:33,463 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1145901665] [2023-11-21 22:11:33,463 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-21 22:11:33,464 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 35 states [2023-11-21 22:11:33,464 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:11:33,465 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2023-11-21 22:11:33,465 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=278, Invalid=912, Unknown=0, NotChecked=0, Total=1190 [2023-11-21 22:11:33,466 INFO L87 Difference]: Start difference. First operand 77 states and 86 transitions. Second operand has 35 states, 35 states have (on average 2.5714285714285716) internal successors, (90), 35 states have internal predecessors, (90), 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) [2023-11-21 22:11:33,942 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:11:33,943 INFO L93 Difference]: Finished difference Result 166 states and 194 transitions. [2023-11-21 22:11:33,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2023-11-21 22:11:33,943 INFO L78 Accepts]: Start accepts. Automaton has has 35 states, 35 states have (on average 2.5714285714285716) internal successors, (90), 35 states have internal predecessors, (90), 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 49 [2023-11-21 22:11:33,944 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:11:33,944 INFO L225 Difference]: With dead ends: 166 [2023-11-21 22:11:33,945 INFO L226 Difference]: Without dead ends: 112 [2023-11-21 22:11:33,946 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 67 SyntacticMatches, 0 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 385 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=633, Invalid=1817, Unknown=0, NotChecked=0, Total=2450 [2023-11-21 22:11:33,947 INFO L413 NwaCegarLoop]: 22 mSDtfsCounter, 67 mSDsluCounter, 208 mSDsCounter, 0 mSdLazyCounter, 261 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 230 SdHoareTripleChecker+Invalid, 263 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 261 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-21 22:11:33,947 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [67 Valid, 230 Invalid, 263 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 261 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-21 22:11:33,948 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112 states. [2023-11-21 22:11:33,956 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112 to 103. [2023-11-21 22:11:33,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 103 states, 98 states have (on average 1.1428571428571428) internal successors, (112), 102 states have internal predecessors, (112), 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) [2023-11-21 22:11:33,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 112 transitions. [2023-11-21 22:11:33,957 INFO L78 Accepts]: Start accepts. Automaton has 103 states and 112 transitions. Word has length 49 [2023-11-21 22:11:33,957 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:11:33,958 INFO L495 AbstractCegarLoop]: Abstraction has 103 states and 112 transitions. [2023-11-21 22:11:33,958 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 35 states, 35 states have (on average 2.5714285714285716) internal successors, (90), 35 states have internal predecessors, (90), 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) [2023-11-21 22:11:33,958 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 112 transitions. [2023-11-21 22:11:33,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2023-11-21 22:11:33,959 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:11:33,959 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:11:33,989 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0367bbf5-7d0a-4a29-a665-3e4d242c4665/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2023-11-21 22:11:34,171 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0367bbf5-7d0a-4a29-a665-3e4d242c4665/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 22:11:34,171 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2023-11-21 22:11:34,171 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:11:34,171 INFO L85 PathProgramCache]: Analyzing trace with hash 1422739928, now seen corresponding path program 1 times [2023-11-21 22:11:34,172 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:11:34,172 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [101542923] [2023-11-21 22:11:34,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:11:34,172 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:11:34,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:11:34,264 INFO L134 CoverageAnalysis]: Checked inductivity of 343 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 341 trivial. 0 not checked. [2023-11-21 22:11:34,264 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:11:34,265 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [101542923] [2023-11-21 22:11:34,265 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [101542923] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:11:34,265 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:11:34,265 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 22:11:34,265 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [829551032] [2023-11-21 22:11:34,265 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:11:34,266 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 22:11:34,266 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:11:34,266 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 22:11:34,267 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:11:34,267 INFO L87 Difference]: Start difference. First operand 103 states and 112 transitions. Second operand has 3 states, 2 states have (on average 13.0) internal successors, (26), 3 states have internal predecessors, (26), 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) [2023-11-21 22:11:34,288 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:11:34,289 INFO L93 Difference]: Finished difference Result 103 states and 112 transitions. [2023-11-21 22:11:34,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 22:11:34,289 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 13.0) internal successors, (26), 3 states have internal predecessors, (26), 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 74 [2023-11-21 22:11:34,290 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:11:34,291 INFO L225 Difference]: With dead ends: 103 [2023-11-21 22:11:34,291 INFO L226 Difference]: Without dead ends: 102 [2023-11-21 22:11:34,291 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 [2023-11-21 22:11:34,292 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 10 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 35 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 [2023-11-21 22:11:34,292 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 35 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-21 22:11:34,293 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102 states. [2023-11-21 22:11:34,297 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102 to 102. [2023-11-21 22:11:34,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 102 states, 98 states have (on average 1.1326530612244898) internal successors, (111), 101 states have internal predecessors, (111), 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) [2023-11-21 22:11:34,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 111 transitions. [2023-11-21 22:11:34,298 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 111 transitions. Word has length 74 [2023-11-21 22:11:34,299 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:11:34,299 INFO L495 AbstractCegarLoop]: Abstraction has 102 states and 111 transitions. [2023-11-21 22:11:34,299 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 13.0) internal successors, (26), 3 states have internal predecessors, (26), 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) [2023-11-21 22:11:34,299 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 111 transitions. [2023-11-21 22:11:34,300 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2023-11-21 22:11:34,300 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:11:34,300 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:11:34,300 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-11-21 22:11:34,301 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2023-11-21 22:11:34,301 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:11:34,301 INFO L85 PathProgramCache]: Analyzing trace with hash 1453476305, now seen corresponding path program 1 times [2023-11-21 22:11:34,302 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:11:34,302 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [420413474] [2023-11-21 22:11:34,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:11:34,302 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:11:34,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:11:34,431 INFO L134 CoverageAnalysis]: Checked inductivity of 346 backedges. 1 proven. 8 refuted. 0 times theorem prover too weak. 337 trivial. 0 not checked. [2023-11-21 22:11:34,431 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:11:34,432 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [420413474] [2023-11-21 22:11:34,432 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [420413474] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-21 22:11:34,432 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [754015668] [2023-11-21 22:11:34,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:11:34,432 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 22:11:34,433 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0367bbf5-7d0a-4a29-a665-3e4d242c4665/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:11:34,434 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0367bbf5-7d0a-4a29-a665-3e4d242c4665/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-21 22:11:34,472 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0367bbf5-7d0a-4a29-a665-3e4d242c4665/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2023-11-21 22:11:34,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:11:34,580 INFO L262 TraceCheckSpWp]: Trace formula consists of 301 conjuncts, 32 conjunts are in the unsatisfiable core [2023-11-21 22:11:34,595 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 22:11:35,239 INFO L134 CoverageAnalysis]: Checked inductivity of 346 backedges. 0 proven. 330 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-11-21 22:11:35,240 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-21 22:11:36,517 INFO L134 CoverageAnalysis]: Checked inductivity of 346 backedges. 0 proven. 330 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-11-21 22:11:36,517 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [754015668] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-21 22:11:36,518 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-21 22:11:36,518 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 32, 32] total 67 [2023-11-21 22:11:36,518 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2029770497] [2023-11-21 22:11:36,518 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-21 22:11:36,519 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 67 states [2023-11-21 22:11:36,519 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:11:36,520 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 67 interpolants. [2023-11-21 22:11:36,523 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1065, Invalid=3357, Unknown=0, NotChecked=0, Total=4422 [2023-11-21 22:11:36,523 INFO L87 Difference]: Start difference. First operand 102 states and 111 transitions. Second operand has 67 states, 67 states have (on average 1.9701492537313432) internal successors, (132), 67 states have internal predecessors, (132), 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) [2023-11-21 22:11:37,691 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:11:37,691 INFO L93 Difference]: Finished difference Result 235 states and 274 transitions. [2023-11-21 22:11:37,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 66 states. [2023-11-21 22:11:37,692 INFO L78 Accepts]: Start accepts. Automaton has has 67 states, 67 states have (on average 1.9701492537313432) internal successors, (132), 67 states have internal predecessors, (132), 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 76 [2023-11-21 22:11:37,692 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:11:37,693 INFO L225 Difference]: With dead ends: 235 [2023-11-21 22:11:37,693 INFO L226 Difference]: Without dead ends: 180 [2023-11-21 22:11:37,698 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 185 GetRequests, 90 SyntacticMatches, 0 SemanticMatches, 95 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1850 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=2536, Invalid=6776, Unknown=0, NotChecked=0, Total=9312 [2023-11-21 22:11:37,700 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 295 mSDsluCounter, 143 mSDsCounter, 0 mSdLazyCounter, 369 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 295 SdHoareTripleChecker+Valid, 156 SdHoareTripleChecker+Invalid, 370 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 369 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-21 22:11:37,701 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [295 Valid, 156 Invalid, 370 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 369 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-21 22:11:37,701 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 180 states. [2023-11-21 22:11:37,707 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 180 to 166. [2023-11-21 22:11:37,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 166 states, 162 states have (on average 1.0925925925925926) internal successors, (177), 165 states have internal predecessors, (177), 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) [2023-11-21 22:11:37,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 166 states to 166 states and 177 transitions. [2023-11-21 22:11:37,709 INFO L78 Accepts]: Start accepts. Automaton has 166 states and 177 transitions. Word has length 76 [2023-11-21 22:11:37,709 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:11:37,709 INFO L495 AbstractCegarLoop]: Abstraction has 166 states and 177 transitions. [2023-11-21 22:11:37,710 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 67 states, 67 states have (on average 1.9701492537313432) internal successors, (132), 67 states have internal predecessors, (132), 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) [2023-11-21 22:11:37,710 INFO L276 IsEmpty]: Start isEmpty. Operand 166 states and 177 transitions. [2023-11-21 22:11:37,716 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2023-11-21 22:11:37,716 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:11:37,716 INFO L195 NwaCegarLoop]: trace histogram [31, 31, 31, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:11:37,742 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0367bbf5-7d0a-4a29-a665-3e4d242c4665/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2023-11-21 22:11:37,931 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0367bbf5-7d0a-4a29-a665-3e4d242c4665/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2023-11-21 22:11:37,931 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2023-11-21 22:11:37,931 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:11:37,932 INFO L85 PathProgramCache]: Analyzing trace with hash 1200040738, now seen corresponding path program 2 times [2023-11-21 22:11:37,932 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:11:37,932 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [318206569] [2023-11-21 22:11:37,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:11:37,932 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:11:38,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:11:38,233 INFO L134 CoverageAnalysis]: Checked inductivity of 1455 backedges. 1 proven. 21 refuted. 0 times theorem prover too weak. 1433 trivial. 0 not checked. [2023-11-21 22:11:38,233 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:11:38,233 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [318206569] [2023-11-21 22:11:38,234 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [318206569] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-21 22:11:38,234 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [253982638] [2023-11-21 22:11:38,234 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-21 22:11:38,234 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 22:11:38,235 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0367bbf5-7d0a-4a29-a665-3e4d242c4665/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:11:38,236 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0367bbf5-7d0a-4a29-a665-3e4d242c4665/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-21 22:11:38,239 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0367bbf5-7d0a-4a29-a665-3e4d242c4665/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2023-11-21 22:11:38,353 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-11-21 22:11:38,354 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-21 22:11:38,355 INFO L262 TraceCheckSpWp]: Trace formula consists of 52 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-21 22:11:38,364 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 22:11:38,394 INFO L134 CoverageAnalysis]: Checked inductivity of 1455 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 1451 trivial. 0 not checked. [2023-11-21 22:11:38,394 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-21 22:11:38,394 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [253982638] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:11:38,394 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-21 22:11:38,395 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 9 [2023-11-21 22:11:38,395 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [707235773] [2023-11-21 22:11:38,395 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:11:38,396 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-21 22:11:38,397 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:11:38,397 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-21 22:11:38,397 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2023-11-21 22:11:38,398 INFO L87 Difference]: Start difference. First operand 166 states and 177 transitions. Second operand has 5 states, 4 states have (on average 6.75) internal successors, (27), 5 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) [2023-11-21 22:11:38,447 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:11:38,447 INFO L93 Difference]: Finished difference Result 166 states and 177 transitions. [2023-11-21 22:11:38,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-21 22:11:38,448 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 6.75) internal successors, (27), 5 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) Word has length 130 [2023-11-21 22:11:38,448 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:11:38,449 INFO L225 Difference]: With dead ends: 166 [2023-11-21 22:11:38,450 INFO L226 Difference]: Without dead ends: 165 [2023-11-21 22:11:38,450 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 138 GetRequests, 129 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2023-11-21 22:11:38,451 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 20 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 70 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-21 22:11:38,451 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 70 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-21 22:11:38,452 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 165 states. [2023-11-21 22:11:38,457 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 165 to 165. [2023-11-21 22:11:38,458 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 165 states, 162 states have (on average 1.0864197530864197) internal successors, (176), 164 states have internal predecessors, (176), 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) [2023-11-21 22:11:38,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 165 states to 165 states and 176 transitions. [2023-11-21 22:11:38,459 INFO L78 Accepts]: Start accepts. Automaton has 165 states and 176 transitions. Word has length 130 [2023-11-21 22:11:38,459 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:11:38,459 INFO L495 AbstractCegarLoop]: Abstraction has 165 states and 176 transitions. [2023-11-21 22:11:38,460 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 6.75) internal successors, (27), 5 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) [2023-11-21 22:11:38,460 INFO L276 IsEmpty]: Start isEmpty. Operand 165 states and 176 transitions. [2023-11-21 22:11:38,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2023-11-21 22:11:38,461 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:11:38,461 INFO L195 NwaCegarLoop]: trace histogram [31, 31, 31, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:11:38,487 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0367bbf5-7d0a-4a29-a665-3e4d242c4665/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2023-11-21 22:11:38,681 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0367bbf5-7d0a-4a29-a665-3e4d242c4665/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 22:11:38,682 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2023-11-21 22:11:38,682 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:11:38,682 INFO L85 PathProgramCache]: Analyzing trace with hash 1200040374, now seen corresponding path program 1 times [2023-11-21 22:11:38,682 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:11:38,683 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1737229542] [2023-11-21 22:11:38,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:11:38,683 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:11:38,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:11:38,842 INFO L134 CoverageAnalysis]: Checked inductivity of 1455 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 1451 trivial. 0 not checked. [2023-11-21 22:11:38,843 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:11:38,843 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1737229542] [2023-11-21 22:11:38,843 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1737229542] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:11:38,843 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:11:38,843 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-21 22:11:38,844 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [49335510] [2023-11-21 22:11:38,844 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:11:38,844 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-21 22:11:38,844 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:11:38,845 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-21 22:11:38,845 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-21 22:11:38,846 INFO L87 Difference]: Start difference. First operand 165 states and 176 transitions. Second operand has 4 states, 3 states have (on average 9.0) internal successors, (27), 4 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) [2023-11-21 22:11:38,879 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:11:38,879 INFO L93 Difference]: Finished difference Result 165 states and 176 transitions. [2023-11-21 22:11:38,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-21 22:11:38,880 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 9.0) internal successors, (27), 4 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) Word has length 130 [2023-11-21 22:11:38,880 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:11:38,881 INFO L225 Difference]: With dead ends: 165 [2023-11-21 22:11:38,881 INFO L226 Difference]: Without dead ends: 163 [2023-11-21 22:11:38,882 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-21 22:11:38,883 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 9 mSDsluCounter, 30 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 46 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-21 22:11:38,884 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 46 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-21 22:11:38,889 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 163 states. [2023-11-21 22:11:38,894 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 163 to 161. [2023-11-21 22:11:38,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 161 states, 160 states have (on average 1.075) internal successors, (172), 160 states have internal predecessors, (172), 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) [2023-11-21 22:11:38,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 161 states to 161 states and 172 transitions. [2023-11-21 22:11:38,896 INFO L78 Accepts]: Start accepts. Automaton has 161 states and 172 transitions. Word has length 130 [2023-11-21 22:11:38,896 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:11:38,897 INFO L495 AbstractCegarLoop]: Abstraction has 161 states and 172 transitions. [2023-11-21 22:11:38,897 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 9.0) internal successors, (27), 4 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) [2023-11-21 22:11:38,897 INFO L276 IsEmpty]: Start isEmpty. Operand 161 states and 172 transitions. [2023-11-21 22:11:38,898 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2023-11-21 22:11:38,899 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:11:38,899 INFO L195 NwaCegarLoop]: trace histogram [31, 31, 31, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:11:38,899 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2023-11-21 22:11:38,899 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2023-11-21 22:11:38,900 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:11:38,900 INFO L85 PathProgramCache]: Analyzing trace with hash -1453453922, now seen corresponding path program 1 times [2023-11-21 22:11:38,900 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:11:38,900 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1770884458] [2023-11-21 22:11:38,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:11:38,901 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:11:38,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:11:39,090 INFO L134 CoverageAnalysis]: Checked inductivity of 1456 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 1450 trivial. 0 not checked. [2023-11-21 22:11:39,091 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:11:39,091 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1770884458] [2023-11-21 22:11:39,091 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1770884458] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:11:39,091 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:11:39,091 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-21 22:11:39,092 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1935248638] [2023-11-21 22:11:39,092 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:11:39,092 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-21 22:11:39,092 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:11:39,093 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-21 22:11:39,093 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-21 22:11:39,093 INFO L87 Difference]: Start difference. First operand 161 states and 172 transitions. Second operand has 4 states, 3 states have (on average 9.666666666666666) internal successors, (29), 4 states have internal predecessors, (29), 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) [2023-11-21 22:11:39,121 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:11:39,121 INFO L93 Difference]: Finished difference Result 161 states and 172 transitions. [2023-11-21 22:11:39,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-21 22:11:39,121 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 9.666666666666666) internal successors, (29), 4 states have internal predecessors, (29), 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 131 [2023-11-21 22:11:39,122 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:11:39,122 INFO L225 Difference]: With dead ends: 161 [2023-11-21 22:11:39,122 INFO L226 Difference]: Without dead ends: 0 [2023-11-21 22:11:39,123 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 [2023-11-21 22:11:39,124 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 5 mSDsluCounter, 30 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 46 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-21 22:11:39,124 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 46 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-21 22:11:39,124 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-11-21 22:11:39,125 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-11-21 22:11:39,125 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) [2023-11-21 22:11:39,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-11-21 22:11:39,125 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 131 [2023-11-21 22:11:39,125 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:11:39,126 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-21 22:11:39,126 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 9.666666666666666) internal successors, (29), 4 states have internal predecessors, (29), 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) [2023-11-21 22:11:39,126 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-11-21 22:11:39,126 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-21 22:11:39,129 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 16 remaining) [2023-11-21 22:11:39,129 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 16 remaining) [2023-11-21 22:11:39,130 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 16 remaining) [2023-11-21 22:11:39,130 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 16 remaining) [2023-11-21 22:11:39,130 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 16 remaining) [2023-11-21 22:11:39,130 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 16 remaining) [2023-11-21 22:11:39,130 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 16 remaining) [2023-11-21 22:11:39,131 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 16 remaining) [2023-11-21 22:11:39,131 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 16 remaining) [2023-11-21 22:11:39,131 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 16 remaining) [2023-11-21 22:11:39,131 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 16 remaining) [2023-11-21 22:11:39,132 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 16 remaining) [2023-11-21 22:11:39,132 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 16 remaining) [2023-11-21 22:11:39,132 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 16 remaining) [2023-11-21 22:11:39,132 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 16 remaining) [2023-11-21 22:11:39,132 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 16 remaining) [2023-11-21 22:11:39,133 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2023-11-21 22:11:39,135 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-11-21 22:11:39,207 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 29) no Hoare annotation was computed. [2023-11-21 22:11:39,208 INFO L899 garLoopResultBuilder]: For program point L19-3(line 19) no Hoare annotation was computed. [2023-11-21 22:11:39,208 INFO L899 garLoopResultBuilder]: For program point L19-4(line 19) no Hoare annotation was computed. [2023-11-21 22:11:39,208 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW(line 40) no Hoare annotation was computed. [2023-11-21 22:11:39,209 INFO L895 garLoopResultBuilder]: At program point L19-5(lines 19 22) the Hoare annotation is: (or (< 0 |ULTIMATE.start_main_~j~0#1|) (= |ULTIMATE.start_main_~j~0#1| 0)) [2023-11-21 22:11:39,209 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW(line 32) no Hoare annotation was computed. [2023-11-21 22:11:39,209 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 19) no Hoare annotation was computed. [2023-11-21 22:11:39,209 INFO L895 garLoopResultBuilder]: At program point L28-2(lines 28 36) the Hoare annotation is: (< 0 |ULTIMATE.start_main_~i~0#1|) [2023-11-21 22:11:39,209 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW(line 35) no Hoare annotation was computed. [2023-11-21 22:11:39,210 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 19) no Hoare annotation was computed. [2023-11-21 22:11:39,210 INFO L899 garLoopResultBuilder]: For program point L29(line 29) no Hoare annotation was computed. [2023-11-21 22:11:39,210 INFO L899 garLoopResultBuilder]: For program point L29-1(line 29) no Hoare annotation was computed. [2023-11-21 22:11:39,210 INFO L899 garLoopResultBuilder]: For program point L29-2(lines 29 34) no Hoare annotation was computed. [2023-11-21 22:11:39,210 INFO L899 garLoopResultBuilder]: For program point L29-4(lines 29 34) no Hoare annotation was computed. [2023-11-21 22:11:39,210 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW(line 35) no Hoare annotation was computed. [2023-11-21 22:11:39,211 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-11-21 22:11:39,211 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW(line 41) no Hoare annotation was computed. [2023-11-21 22:11:39,211 INFO L899 garLoopResultBuilder]: For program point L31(line 31) no Hoare annotation was computed. [2023-11-21 22:11:39,211 INFO L899 garLoopResultBuilder]: For program point L31-1(line 31) no Hoare annotation was computed. [2023-11-21 22:11:39,211 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW(line 41) no Hoare annotation was computed. [2023-11-21 22:11:39,211 INFO L899 garLoopResultBuilder]: For program point L40-3(line 40) no Hoare annotation was computed. [2023-11-21 22:11:39,211 INFO L899 garLoopResultBuilder]: For program point L40-4(line 40) no Hoare annotation was computed. [2023-11-21 22:11:39,212 INFO L895 garLoopResultBuilder]: At program point L40-5(lines 40 44) the Hoare annotation is: (or (= |ULTIMATE.start_main_~x~0#1| 0) (and (<= 0 (+ 2147483649 |ULTIMATE.start_main_~x~0#1|)) (<= 1 |ULTIMATE.start_main_~y~0#1|))) [2023-11-21 22:11:39,212 INFO L899 garLoopResultBuilder]: For program point L32(line 32) no Hoare annotation was computed. [2023-11-21 22:11:39,212 INFO L899 garLoopResultBuilder]: For program point L32-1(line 32) no Hoare annotation was computed. [2023-11-21 22:11:39,212 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW(line 31) no Hoare annotation was computed. [2023-11-21 22:11:39,212 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW(line 41) no Hoare annotation was computed. [2023-11-21 22:11:39,213 INFO L899 garLoopResultBuilder]: For program point L41(line 41) no Hoare annotation was computed. [2023-11-21 22:11:39,213 INFO L899 garLoopResultBuilder]: For program point L41-1(line 41) no Hoare annotation was computed. [2023-11-21 22:11:39,213 INFO L899 garLoopResultBuilder]: For program point L41-5(line 41) no Hoare annotation was computed. [2023-11-21 22:11:39,213 INFO L899 garLoopResultBuilder]: For program point L41-6(line 41) no Hoare annotation was computed. [2023-11-21 22:11:39,213 INFO L895 garLoopResultBuilder]: At program point L41-7(lines 41 43) the Hoare annotation is: (and (<= 0 (+ 2147483649 |ULTIMATE.start_main_~x~0#1|)) (<= |ULTIMATE.start_main_~x~0#1| 99999) (<= 0 (+ |ULTIMATE.start_main_~y~0#1| 2147483648))) [2023-11-21 22:11:39,213 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-11-21 22:11:39,214 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW(line 31) no Hoare annotation was computed. [2023-11-21 22:11:39,214 INFO L902 garLoopResultBuilder]: At program point L25-2(lines 25 37) the Hoare annotation is: true [2023-11-21 22:11:39,214 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW(line 41) no Hoare annotation was computed. [2023-11-21 22:11:39,214 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 29) no Hoare annotation was computed. [2023-11-21 22:11:39,214 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW(line 40) no Hoare annotation was computed. [2023-11-21 22:11:39,215 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW(line 32) no Hoare annotation was computed. [2023-11-21 22:11:39,215 INFO L899 garLoopResultBuilder]: For program point L35(line 35) no Hoare annotation was computed. [2023-11-21 22:11:39,218 INFO L445 BasicCegarLoop]: Path program histogram: [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:11:39,220 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-21 22:11:39,232 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.11 10:11:39 BoogieIcfgContainer [2023-11-21 22:11:39,232 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-21 22:11:39,233 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-21 22:11:39,233 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-21 22:11:39,233 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-21 22:11:39,234 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:11:26" (3/4) ... [2023-11-21 22:11:39,236 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-21 22:11:39,244 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 24 nodes and edges [2023-11-21 22:11:39,244 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2023-11-21 22:11:39,245 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-21 22:11:39,245 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-21 22:11:39,345 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0367bbf5-7d0a-4a29-a665-3e4d242c4665/bin/uautomizer-verify-bycVGegfSx/witness.graphml [2023-11-21 22:11:39,345 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0367bbf5-7d0a-4a29-a665-3e4d242c4665/bin/uautomizer-verify-bycVGegfSx/witness.yml [2023-11-21 22:11:39,345 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-21 22:11:39,346 INFO L158 Benchmark]: Toolchain (without parser) took 14308.82ms. Allocated memory was 163.6MB in the beginning and 232.8MB in the end (delta: 69.2MB). Free memory was 135.6MB in the beginning and 150.5MB in the end (delta: -14.8MB). Peak memory consumption was 54.3MB. Max. memory is 16.1GB. [2023-11-21 22:11:39,347 INFO L158 Benchmark]: CDTParser took 1.33ms. Allocated memory is still 119.5MB. Free memory is still 85.8MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 22:11:39,347 INFO L158 Benchmark]: CACSL2BoogieTranslator took 373.39ms. Allocated memory is still 163.6MB. Free memory was 135.0MB in the beginning and 124.3MB in the end (delta: 10.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-21 22:11:39,347 INFO L158 Benchmark]: Boogie Procedure Inliner took 64.75ms. Allocated memory is still 163.6MB. Free memory was 124.3MB in the beginning and 122.8MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-21 22:11:39,348 INFO L158 Benchmark]: Boogie Preprocessor took 76.22ms. Allocated memory is still 163.6MB. Free memory was 122.8MB in the beginning and 120.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-21 22:11:39,348 INFO L158 Benchmark]: RCFGBuilder took 569.38ms. Allocated memory is still 163.6MB. Free memory was 120.7MB in the beginning and 103.3MB in the end (delta: 17.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2023-11-21 22:11:39,349 INFO L158 Benchmark]: TraceAbstraction took 13104.28ms. Allocated memory was 163.6MB in the beginning and 232.8MB in the end (delta: 69.2MB). Free memory was 102.5MB in the beginning and 155.7MB in the end (delta: -53.3MB). Peak memory consumption was 16.6MB. Max. memory is 16.1GB. [2023-11-21 22:11:39,349 INFO L158 Benchmark]: Witness Printer took 112.79ms. Allocated memory is still 232.8MB. Free memory was 155.7MB in the beginning and 150.5MB in the end (delta: 5.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2023-11-21 22:11:39,351 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.33ms. Allocated memory is still 119.5MB. Free memory is still 85.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 373.39ms. Allocated memory is still 163.6MB. Free memory was 135.0MB in the beginning and 124.3MB in the end (delta: 10.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 64.75ms. Allocated memory is still 163.6MB. Free memory was 124.3MB in the beginning and 122.8MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 76.22ms. Allocated memory is still 163.6MB. Free memory was 122.8MB in the beginning and 120.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 569.38ms. Allocated memory is still 163.6MB. Free memory was 120.7MB in the beginning and 103.3MB in the end (delta: 17.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 13104.28ms. Allocated memory was 163.6MB in the beginning and 232.8MB in the end (delta: 69.2MB). Free memory was 102.5MB in the beginning and 155.7MB in the end (delta: -53.3MB). Peak memory consumption was 16.6MB. Max. memory is 16.1GB. * Witness Printer took 112.79ms. Allocated memory is still 232.8MB. Free memory was 155.7MB in the beginning and 150.5MB in the end (delta: 5.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.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: 29]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 29]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 31]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 31]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 32]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 32]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 35]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 35]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 41]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 41]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 41]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 41]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 40]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 40]: 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, 40 locations, 16 error locations. Started 1 CEGAR loops. OverallTime: 13.0s, OverallIterations: 21, TraceHistogramMax: 31, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 2.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 591 SdHoareTripleChecker+Valid, 1.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 591 mSDsluCounter, 1614 SdHoareTripleChecker+Invalid, 1.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1117 mSDsCounter, 34 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1315 IncrementalHoareTripleChecker+Invalid, 1349 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 34 mSolverCounterUnsat, 497 mSDtfsCounter, 1315 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 696 GetRequests, 456 SyntacticMatches, 0 SemanticMatches, 240 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2341 ImplicationChecksByTransitivity, 3.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=166occurred in iteration=18, InterpolantAutomatonStates: 190, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 21 MinimizatonAttempts, 91 StatesRemovedByMinimization, 12 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 5 LocationsWithAnnotation, 5 PreInvPairs, 50 NumberOfFragments, 38 HoareAnnotationTreeSize, 5 FomulaSimplifications, 370 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 5 FomulaSimplificationsInter, 22 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 4.9s InterpolantComputationTime, 1284 NumberOfCodeBlocks, 1145 NumberOfCodeBlocksAsserted, 34 NumberOfCheckSat, 1415 ConstructedInterpolants, 0 QuantifiedInterpolants, 2041 SizeOfPredicates, 32 NumberOfNonLiveVariables, 1203 ConjunctsInSsa, 85 ConjunctsInUnsatCore, 38 InterpolantComputations, 17 PerfectInterpolantSequences, 6931/7799 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 16 specifications checked. All of them hold - InvariantResult [Line: 25]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 41]: Loop Invariant Derived loop invariant: (((0 <= (2147483649 + x)) && (x <= 99999)) && (0 <= (y + 2147483648))) - InvariantResult [Line: 19]: Loop Invariant Derived loop invariant: ((0 < j) || (j == 0)) - InvariantResult [Line: 40]: Loop Invariant Derived loop invariant: ((x == 0) || ((0 <= (2147483649 + x)) && (1 <= y))) - InvariantResult [Line: 28]: Loop Invariant Derived loop invariant: (0 < i) RESULT: Ultimate proved your program to be correct! [2023-11-21 22:11:39,389 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0367bbf5-7d0a-4a29-a665-3e4d242c4665/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE