./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-memory-alloca/java_BubbleSort-alloca-2.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daf046c9-e4e5-4b39-a11a-e789d555d2cd/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daf046c9-e4e5-4b39-a11a-e789d555d2cd/bin/uautomizer-verify-BQ2R08f2Ya/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daf046c9-e4e5-4b39-a11a-e789d555d2cd/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daf046c9-e4e5-4b39-a11a-e789d555d2cd/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerReach.xml -i ../../sv-benchmarks/c/termination-memory-alloca/java_BubbleSort-alloca-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daf046c9-e4e5-4b39-a11a-e789d555d2cd/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daf046c9-e4e5-4b39-a11a-e789d555d2cd/bin/uautomizer-verify-BQ2R08f2Ya --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash a88178fc87721f9fcc743f79bc2a47ff45a89438b0709780ae0f715015934520 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-29 02:41:31,240 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-29 02:41:31,314 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daf046c9-e4e5-4b39-a11a-e789d555d2cd/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Overflow-64bit-Automizer_Default.epf [2023-11-29 02:41:31,319 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-29 02:41:31,320 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-29 02:41:31,344 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-29 02:41:31,345 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-29 02:41:31,346 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-29 02:41:31,346 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-29 02:41:31,347 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-29 02:41:31,348 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-29 02:41:31,348 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-29 02:41:31,349 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-29 02:41:31,349 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-29 02:41:31,350 INFO L153 SettingsManager]: * Use SBE=true [2023-11-29 02:41:31,351 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-29 02:41:31,351 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-29 02:41:31,352 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-29 02:41:31,352 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-29 02:41:31,353 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-29 02:41:31,353 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-29 02:41:31,355 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-29 02:41:31,355 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-29 02:41:31,355 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-29 02:41:31,356 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-29 02:41:31,356 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-29 02:41:31,357 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-29 02:41:31,357 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-29 02:41:31,357 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-29 02:41:31,358 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-29 02:41:31,358 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 02:41:31,358 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-29 02:41:31,359 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-29 02:41:31,360 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-29 02:41:31,360 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-29 02:41:31,360 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-29 02:41:31,361 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-29 02:41:31,361 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-29 02:41:31,362 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-29 02:41:31,362 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-29 02:41:31,362 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-29 02:41:31,362 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_daf046c9-e4e5-4b39-a11a-e789d555d2cd/bin/uautomizer-verify-BQ2R08f2Ya/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daf046c9-e4e5-4b39-a11a-e789d555d2cd/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a88178fc87721f9fcc743f79bc2a47ff45a89438b0709780ae0f715015934520 [2023-11-29 02:41:31,640 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-29 02:41:31,664 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-29 02:41:31,667 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-29 02:41:31,669 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-29 02:41:31,669 INFO L274 PluginConnector]: CDTParser initialized [2023-11-29 02:41:31,671 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daf046c9-e4e5-4b39-a11a-e789d555d2cd/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/termination-memory-alloca/java_BubbleSort-alloca-2.i [2023-11-29 02:41:34,806 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-29 02:41:35,063 INFO L384 CDTParser]: Found 1 translation units. [2023-11-29 02:41:35,064 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daf046c9-e4e5-4b39-a11a-e789d555d2cd/sv-benchmarks/c/termination-memory-alloca/java_BubbleSort-alloca-2.i [2023-11-29 02:41:35,079 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daf046c9-e4e5-4b39-a11a-e789d555d2cd/bin/uautomizer-verify-BQ2R08f2Ya/data/b012e0921/a5fafcf4231a47aea8ba7e56bb0ce803/FLAG8266b2b34 [2023-11-29 02:41:35,090 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daf046c9-e4e5-4b39-a11a-e789d555d2cd/bin/uautomizer-verify-BQ2R08f2Ya/data/b012e0921/a5fafcf4231a47aea8ba7e56bb0ce803 [2023-11-29 02:41:35,093 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-29 02:41:35,094 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-29 02:41:35,095 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-29 02:41:35,095 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-29 02:41:35,100 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-29 02:41:35,100 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 02:41:35" (1/1) ... [2023-11-29 02:41:35,101 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@a94835f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:41:35, skipping insertion in model container [2023-11-29 02:41:35,101 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 02:41:35" (1/1) ... [2023-11-29 02:41:35,142 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-29 02:41:35,402 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 02:41:35,412 INFO L202 MainTranslator]: Completed pre-run [2023-11-29 02:41:35,453 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 02:41:35,482 INFO L206 MainTranslator]: Completed translation [2023-11-29 02:41:35,482 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:41:35 WrapperNode [2023-11-29 02:41:35,483 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-29 02:41:35,484 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-29 02:41:35,484 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-29 02:41:35,484 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-29 02:41:35,492 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:41:35" (1/1) ... [2023-11-29 02:41:35,506 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:41:35" (1/1) ... [2023-11-29 02:41:35,529 INFO L138 Inliner]: procedures = 111, calls = 13, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 81 [2023-11-29 02:41:35,529 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-29 02:41:35,530 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-29 02:41:35,530 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-29 02:41:35,531 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-29 02:41:35,543 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:41:35" (1/1) ... [2023-11-29 02:41:35,543 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:41:35" (1/1) ... [2023-11-29 02:41:35,547 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:41:35" (1/1) ... [2023-11-29 02:41:35,563 INFO L175 MemorySlicer]: Split 7 memory accesses to 1 slices as follows [7]. 100 percent of accesses are in the largest equivalence class. The 0 initializations are split as follows [0]. The 3 writes are split as follows [3]. [2023-11-29 02:41:35,563 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:41:35" (1/1) ... [2023-11-29 02:41:35,564 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:41:35" (1/1) ... [2023-11-29 02:41:35,570 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:41:35" (1/1) ... [2023-11-29 02:41:35,574 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:41:35" (1/1) ... [2023-11-29 02:41:35,576 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:41:35" (1/1) ... [2023-11-29 02:41:35,578 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:41:35" (1/1) ... [2023-11-29 02:41:35,581 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-29 02:41:35,582 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-29 02:41:35,583 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-29 02:41:35,583 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-29 02:41:35,584 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:41:35" (1/1) ... [2023-11-29 02:41:35,591 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 02:41:35,603 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daf046c9-e4e5-4b39-a11a-e789d555d2cd/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:41:35,616 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daf046c9-e4e5-4b39-a11a-e789d555d2cd/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-29 02:41:35,621 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daf046c9-e4e5-4b39-a11a-e789d555d2cd/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-29 02:41:35,653 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2023-11-29 02:41:35,653 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2023-11-29 02:41:35,653 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-29 02:41:35,654 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-29 02:41:35,654 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-29 02:41:35,654 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-29 02:41:35,747 INFO L241 CfgBuilder]: Building ICFG [2023-11-29 02:41:35,749 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-29 02:41:35,912 INFO L282 CfgBuilder]: Performing block encoding [2023-11-29 02:41:35,937 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-29 02:41:35,937 INFO L309 CfgBuilder]: Removed 3 assume(true) statements. [2023-11-29 02:41:35,938 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 02:41:35 BoogieIcfgContainer [2023-11-29 02:41:35,938 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-29 02:41:35,940 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-29 02:41:35,941 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-29 02:41:35,944 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-29 02:41:35,944 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 02:41:35" (1/3) ... [2023-11-29 02:41:35,945 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ca7eee7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 02:41:35, skipping insertion in model container [2023-11-29 02:41:35,945 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:41:35" (2/3) ... [2023-11-29 02:41:35,945 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ca7eee7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 02:41:35, skipping insertion in model container [2023-11-29 02:41:35,946 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 02:41:35" (3/3) ... [2023-11-29 02:41:35,947 INFO L112 eAbstractionObserver]: Analyzing ICFG java_BubbleSort-alloca-2.i [2023-11-29 02:41:35,967 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-29 02:41:35,967 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 14 error locations. [2023-11-29 02:41:36,008 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-29 02:41:36,013 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;@390bd4ab, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-29 02:41:36,013 INFO L358 AbstractCegarLoop]: Starting to check reachability of 14 error locations. [2023-11-29 02:41:36,017 INFO L276 IsEmpty]: Start isEmpty. Operand has 40 states, 25 states have (on average 1.88) 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) [2023-11-29 02:41:36,022 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-11-29 02:41:36,023 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:41:36,024 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2023-11-29 02:41:36,026 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2023-11-29 02:41:36,032 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:41:36,032 INFO L85 PathProgramCache]: Analyzing trace with hash 109135861, now seen corresponding path program 1 times [2023-11-29 02:41:36,042 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:41:36,043 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [935499202] [2023-11-29 02:41:36,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:41:36,043 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:41:36,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:41:36,269 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 02:41:36,270 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:41:36,270 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [935499202] [2023-11-29 02:41:36,271 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [935499202] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:41:36,271 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:41:36,271 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 02:41:36,273 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1894047340] [2023-11-29 02:41:36,273 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:41:36,277 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 02:41:36,278 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:41:36,301 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 02:41:36,301 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 02:41:36,303 INFO L87 Difference]: Start difference. First operand has 40 states, 25 states have (on average 1.88) 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) Second operand has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 02:41:36,359 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:41:36,360 INFO L93 Difference]: Finished difference Result 78 states and 91 transitions. [2023-11-29 02:41:36,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 02:41:36,374 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 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 5 [2023-11-29 02:41:36,375 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:41:36,382 INFO L225 Difference]: With dead ends: 78 [2023-11-29 02:41:36,382 INFO L226 Difference]: Without dead ends: 42 [2023-11-29 02:41:36,384 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-29 02:41:36,387 INFO L413 NwaCegarLoop]: 38 mSDtfsCounter, 4 mSDsluCounter, 73 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 111 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 02:41:36,388 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 111 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 02:41:36,411 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2023-11-29 02:41:36,424 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 41. [2023-11-29 02:41:36,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41 states, 27 states have (on average 1.7037037037037037) 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) [2023-11-29 02:41:36,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 46 transitions. [2023-11-29 02:41:36,428 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 46 transitions. Word has length 5 [2023-11-29 02:41:36,429 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:41:36,429 INFO L495 AbstractCegarLoop]: Abstraction has 41 states and 46 transitions. [2023-11-29 02:41:36,429 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 02:41:36,429 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 46 transitions. [2023-11-29 02:41:36,430 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-29 02:41:36,430 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:41:36,430 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:41:36,430 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-29 02:41:36,431 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2023-11-29 02:41:36,431 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:41:36,431 INFO L85 PathProgramCache]: Analyzing trace with hash 1798150634, now seen corresponding path program 1 times [2023-11-29 02:41:36,432 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:41:36,432 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1130785393] [2023-11-29 02:41:36,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:41:36,432 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:41:36,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:41:36,513 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 02:41:36,513 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:41:36,514 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1130785393] [2023-11-29 02:41:36,514 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1130785393] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:41:36,514 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:41:36,514 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 02:41:36,514 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1544560903] [2023-11-29 02:41:36,515 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:41:36,516 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 02:41:36,516 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:41:36,517 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 02:41:36,517 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-29 02:41:36,517 INFO L87 Difference]: Start difference. First operand 41 states and 46 transitions. Second operand has 4 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 02:41:36,543 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:41:36,543 INFO L93 Difference]: Finished difference Result 71 states and 78 transitions. [2023-11-29 02:41:36,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 02:41:36,544 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2023-11-29 02:41:36,545 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:41:36,545 INFO L225 Difference]: With dead ends: 71 [2023-11-29 02:41:36,545 INFO L226 Difference]: Without dead ends: 41 [2023-11-29 02:41:36,546 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 [2023-11-29 02:41:36,548 INFO L413 NwaCegarLoop]: 37 mSDtfsCounter, 41 mSDsluCounter, 34 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 71 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 02:41:36,548 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 71 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 02:41:36,549 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2023-11-29 02:41:36,554 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41. [2023-11-29 02:41:36,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41 states, 27 states have (on average 1.6666666666666667) internal successors, (45), 40 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) [2023-11-29 02:41:36,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 45 transitions. [2023-11-29 02:41:36,556 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 45 transitions. Word has length 7 [2023-11-29 02:41:36,556 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:41:36,556 INFO L495 AbstractCegarLoop]: Abstraction has 41 states and 45 transitions. [2023-11-29 02:41:36,556 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 02:41:36,557 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 45 transitions. [2023-11-29 02:41:36,557 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-29 02:41:36,557 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:41:36,557 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2023-11-29 02:41:36,557 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-29 02:41:36,558 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2023-11-29 02:41:36,558 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:41:36,559 INFO L85 PathProgramCache]: Analyzing trace with hash -23753348, now seen corresponding path program 1 times [2023-11-29 02:41:36,559 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:41:36,559 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1892871925] [2023-11-29 02:41:36,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:41:36,560 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:41:36,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:41:36,678 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 02:41:36,678 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:41:36,679 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1892871925] [2023-11-29 02:41:36,679 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1892871925] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 02:41:36,679 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [36664392] [2023-11-29 02:41:36,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:41:36,680 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:41:36,680 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daf046c9-e4e5-4b39-a11a-e789d555d2cd/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:41:36,684 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daf046c9-e4e5-4b39-a11a-e789d555d2cd/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:41:36,693 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daf046c9-e4e5-4b39-a11a-e789d555d2cd/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-29 02:41:36,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:41:36,759 INFO L262 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-29 02:41:36,764 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:41:36,862 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 02:41:36,863 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 02:41:36,863 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [36664392] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:41:36,864 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-29 02:41:36,864 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [5] total 10 [2023-11-29 02:41:36,864 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [341592544] [2023-11-29 02:41:36,864 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:41:36,865 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 02:41:36,865 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:41:36,866 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 02:41:36,866 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2023-11-29 02:41:36,867 INFO L87 Difference]: Start difference. First operand 41 states and 45 transitions. Second operand has 6 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 6 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 02:41:36,920 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:41:36,920 INFO L93 Difference]: Finished difference Result 111 states and 121 transitions. [2023-11-29 02:41:36,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 02:41:36,921 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 6 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 [2023-11-29 02:41:36,921 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:41:36,922 INFO L225 Difference]: With dead ends: 111 [2023-11-29 02:41:36,922 INFO L226 Difference]: Without dead ends: 76 [2023-11-29 02:41:36,923 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2023-11-29 02:41:36,924 INFO L413 NwaCegarLoop]: 35 mSDtfsCounter, 37 mSDsluCounter, 97 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 132 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 02:41:36,925 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [37 Valid, 132 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 02:41:36,926 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2023-11-29 02:41:36,932 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 46. [2023-11-29 02:41:36,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46 states, 32 states have (on average 1.5625) internal successors, (50), 45 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) [2023-11-29 02:41:36,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 50 transitions. [2023-11-29 02:41:36,934 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 50 transitions. Word has length 8 [2023-11-29 02:41:36,934 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:41:36,934 INFO L495 AbstractCegarLoop]: Abstraction has 46 states and 50 transitions. [2023-11-29 02:41:36,934 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 6 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 02:41:36,934 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 50 transitions. [2023-11-29 02:41:36,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-29 02:41:36,935 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:41:36,935 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2023-11-29 02:41:36,944 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daf046c9-e4e5-4b39-a11a-e789d555d2cd/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-29 02:41:37,135 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daf046c9-e4e5-4b39-a11a-e789d555d2cd/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:41:37,136 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2023-11-29 02:41:37,137 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:41:37,137 INFO L85 PathProgramCache]: Analyzing trace with hash 1751254014, now seen corresponding path program 1 times [2023-11-29 02:41:37,137 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:41:37,138 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1412974797] [2023-11-29 02:41:37,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:41:37,138 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:41:37,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:41:37,234 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 02:41:37,234 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:41:37,234 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1412974797] [2023-11-29 02:41:37,235 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1412974797] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 02:41:37,235 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [8397007] [2023-11-29 02:41:37,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:41:37,235 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:41:37,236 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daf046c9-e4e5-4b39-a11a-e789d555d2cd/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:41:37,237 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daf046c9-e4e5-4b39-a11a-e789d555d2cd/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:41:37,244 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daf046c9-e4e5-4b39-a11a-e789d555d2cd/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-29 02:41:37,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:41:37,312 INFO L262 TraceCheckSpWp]: Trace formula consists of 49 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-29 02:41:37,314 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:41:37,352 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 02:41:37,352 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 02:41:37,352 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [8397007] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:41:37,353 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-29 02:41:37,353 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2023-11-29 02:41:37,353 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1106219619] [2023-11-29 02:41:37,353 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:41:37,354 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 02:41:37,354 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:41:37,355 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 02:41:37,355 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-11-29 02:41:37,355 INFO L87 Difference]: Start difference. First operand 46 states and 50 transitions. Second operand has 6 states, 5 states have (on average 1.6) internal successors, (8), 6 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 02:41:37,409 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:41:37,410 INFO L93 Difference]: Finished difference Result 46 states and 50 transitions. [2023-11-29 02:41:37,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 02:41:37,411 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 1.6) internal successors, (8), 6 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 [2023-11-29 02:41:37,411 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:41:37,412 INFO L225 Difference]: With dead ends: 46 [2023-11-29 02:41:37,412 INFO L226 Difference]: Without dead ends: 45 [2023-11-29 02:41:37,413 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2023-11-29 02:41:37,414 INFO L413 NwaCegarLoop]: 35 mSDtfsCounter, 10 mSDsluCounter, 103 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 138 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 02:41:37,415 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 138 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 02:41:37,416 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2023-11-29 02:41:37,421 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 45. [2023-11-29 02:41:37,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45 states, 32 states have (on average 1.53125) internal successors, (49), 44 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) [2023-11-29 02:41:37,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 49 transitions. [2023-11-29 02:41:37,423 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 49 transitions. Word has length 8 [2023-11-29 02:41:37,424 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:41:37,424 INFO L495 AbstractCegarLoop]: Abstraction has 45 states and 49 transitions. [2023-11-29 02:41:37,424 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 1.6) internal successors, (8), 6 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 02:41:37,424 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 49 transitions. [2023-11-29 02:41:37,425 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-11-29 02:41:37,425 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:41:37,425 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1] [2023-11-29 02:41:37,431 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daf046c9-e4e5-4b39-a11a-e789d555d2cd/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-11-29 02:41:37,631 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daf046c9-e4e5-4b39-a11a-e789d555d2cd/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:41:37,632 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2023-11-29 02:41:37,632 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:41:37,632 INFO L85 PathProgramCache]: Analyzing trace with hash -1545700361, now seen corresponding path program 1 times [2023-11-29 02:41:37,633 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:41:37,633 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [756481142] [2023-11-29 02:41:37,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:41:37,633 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:41:37,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:41:37,733 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 02:41:37,734 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:41:37,734 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [756481142] [2023-11-29 02:41:37,734 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [756481142] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 02:41:37,734 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [38855671] [2023-11-29 02:41:37,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:41:37,735 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:41:37,735 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daf046c9-e4e5-4b39-a11a-e789d555d2cd/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:41:37,736 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daf046c9-e4e5-4b39-a11a-e789d555d2cd/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:41:37,740 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daf046c9-e4e5-4b39-a11a-e789d555d2cd/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-29 02:41:37,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:41:37,807 INFO L262 TraceCheckSpWp]: Trace formula consists of 50 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-29 02:41:37,809 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:41:37,842 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 02:41:37,842 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 02:41:37,894 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 02:41:37,895 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [38855671] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 02:41:37,895 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-29 02:41:37,895 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2023-11-29 02:41:37,896 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [935991451] [2023-11-29 02:41:37,896 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-29 02:41:37,896 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-29 02:41:37,896 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:41:37,897 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-29 02:41:37,898 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2023-11-29 02:41:37,898 INFO L87 Difference]: Start difference. First operand 45 states and 49 transitions. Second operand has 12 states, 11 states have (on average 1.8181818181818181) internal successors, (20), 12 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 02:41:38,001 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:41:38,002 INFO L93 Difference]: Finished difference Result 58 states and 67 transitions. [2023-11-29 02:41:38,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-29 02:41:38,002 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 1.8181818181818181) internal successors, (20), 12 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 9 [2023-11-29 02:41:38,003 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:41:38,005 INFO L225 Difference]: With dead ends: 58 [2023-11-29 02:41:38,005 INFO L226 Difference]: Without dead ends: 57 [2023-11-29 02:41:38,005 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=77, Invalid=163, Unknown=0, NotChecked=0, Total=240 [2023-11-29 02:41:38,007 INFO L413 NwaCegarLoop]: 36 mSDtfsCounter, 17 mSDsluCounter, 173 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 209 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 02:41:38,007 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 209 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 02:41:38,008 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2023-11-29 02:41:38,015 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 54. [2023-11-29 02:41:38,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54 states, 41 states have (on average 1.4878048780487805) internal successors, (61), 53 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 02:41:38,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 61 transitions. [2023-11-29 02:41:38,017 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 61 transitions. Word has length 9 [2023-11-29 02:41:38,018 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:41:38,018 INFO L495 AbstractCegarLoop]: Abstraction has 54 states and 61 transitions. [2023-11-29 02:41:38,018 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 1.8181818181818181) internal successors, (20), 12 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 02:41:38,018 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 61 transitions. [2023-11-29 02:41:38,019 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-11-29 02:41:38,019 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:41:38,019 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:41:38,025 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daf046c9-e4e5-4b39-a11a-e789d555d2cd/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2023-11-29 02:41:38,224 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daf046c9-e4e5-4b39-a11a-e789d555d2cd/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:41:38,225 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2023-11-29 02:41:38,225 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:41:38,225 INFO L85 PathProgramCache]: Analyzing trace with hash -1354327631, now seen corresponding path program 1 times [2023-11-29 02:41:38,226 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:41:38,226 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [356948501] [2023-11-29 02:41:38,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:41:38,226 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:41:38,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:41:38,273 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-29 02:41:38,273 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:41:38,274 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [356948501] [2023-11-29 02:41:38,274 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [356948501] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:41:38,274 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:41:38,274 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 02:41:38,274 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [741067341] [2023-11-29 02:41:38,274 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:41:38,275 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 02:41:38,275 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:41:38,276 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 02:41:38,276 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 02:41:38,276 INFO L87 Difference]: Start difference. First operand 54 states and 61 transitions. Second operand has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 02:41:38,299 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:41:38,300 INFO L93 Difference]: Finished difference Result 54 states and 61 transitions. [2023-11-29 02:41:38,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 02:41:38,300 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 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 10 [2023-11-29 02:41:38,301 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:41:38,302 INFO L225 Difference]: With dead ends: 54 [2023-11-29 02:41:38,302 INFO L226 Difference]: Without dead ends: 53 [2023-11-29 02:41:38,302 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 02:41:38,303 INFO L413 NwaCegarLoop]: 32 mSDtfsCounter, 28 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 39 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 02:41:38,304 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 39 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 02:41:38,305 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2023-11-29 02:41:38,311 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 53. [2023-11-29 02:41:38,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53 states, 41 states have (on average 1.4634146341463414) internal successors, (60), 52 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 02:41:38,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 60 transitions. [2023-11-29 02:41:38,312 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 60 transitions. Word has length 10 [2023-11-29 02:41:38,312 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:41:38,313 INFO L495 AbstractCegarLoop]: Abstraction has 53 states and 60 transitions. [2023-11-29 02:41:38,313 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 02:41:38,313 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 60 transitions. [2023-11-29 02:41:38,313 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-11-29 02:41:38,314 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:41:38,314 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:41:38,314 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-29 02:41:38,314 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2023-11-29 02:41:38,315 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:41:38,315 INFO L85 PathProgramCache]: Analyzing trace with hash 965516471, now seen corresponding path program 1 times [2023-11-29 02:41:38,315 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:41:38,315 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [394293876] [2023-11-29 02:41:38,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:41:38,316 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:41:38,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:41:38,402 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-29 02:41:38,402 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:41:38,402 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [394293876] [2023-11-29 02:41:38,402 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [394293876] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:41:38,402 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:41:38,403 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 02:41:38,403 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1301661415] [2023-11-29 02:41:38,403 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:41:38,403 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 02:41:38,403 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:41:38,404 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 02:41:38,404 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 02:41:38,404 INFO L87 Difference]: Start difference. First operand 53 states and 60 transitions. Second operand has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 02:41:38,450 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:41:38,450 INFO L93 Difference]: Finished difference Result 83 states and 92 transitions. [2023-11-29 02:41:38,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 02:41:38,451 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2023-11-29 02:41:38,451 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:41:38,452 INFO L225 Difference]: With dead ends: 83 [2023-11-29 02:41:38,452 INFO L226 Difference]: Without dead ends: 48 [2023-11-29 02:41:38,453 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-29 02:41:38,454 INFO L413 NwaCegarLoop]: 35 mSDtfsCounter, 1 mSDsluCounter, 60 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 95 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 02:41:38,454 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 95 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 02:41:38,455 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2023-11-29 02:41:38,459 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 48. [2023-11-29 02:41:38,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48 states, 36 states have (on average 1.5) internal successors, (54), 47 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) [2023-11-29 02:41:38,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 54 transitions. [2023-11-29 02:41:38,461 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 54 transitions. Word has length 11 [2023-11-29 02:41:38,461 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:41:38,461 INFO L495 AbstractCegarLoop]: Abstraction has 48 states and 54 transitions. [2023-11-29 02:41:38,461 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 02:41:38,461 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 54 transitions. [2023-11-29 02:41:38,462 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-11-29 02:41:38,462 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:41:38,462 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:41:38,462 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-29 02:41:38,463 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2023-11-29 02:41:38,463 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:41:38,463 INFO L85 PathProgramCache]: Analyzing trace with hash 572489461, now seen corresponding path program 1 times [2023-11-29 02:41:38,463 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:41:38,463 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [203506797] [2023-11-29 02:41:38,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:41:38,464 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:41:38,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:41:38,569 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 02:41:38,570 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:41:38,570 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [203506797] [2023-11-29 02:41:38,570 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [203506797] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 02:41:38,570 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [64748229] [2023-11-29 02:41:38,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:41:38,571 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:41:38,571 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daf046c9-e4e5-4b39-a11a-e789d555d2cd/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:41:38,572 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daf046c9-e4e5-4b39-a11a-e789d555d2cd/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:41:38,577 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daf046c9-e4e5-4b39-a11a-e789d555d2cd/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-29 02:41:38,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:41:38,646 INFO L262 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-29 02:41:38,648 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:41:38,712 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-29 02:41:38,712 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 02:41:38,713 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [64748229] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:41:38,713 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-29 02:41:38,713 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [6] total 8 [2023-11-29 02:41:38,713 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1649194676] [2023-11-29 02:41:38,714 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:41:38,714 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 02:41:38,714 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:41:38,715 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 02:41:38,715 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2023-11-29 02:41:38,715 INFO L87 Difference]: Start difference. First operand 48 states and 54 transitions. Second operand has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 02:41:38,768 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:41:38,768 INFO L93 Difference]: Finished difference Result 76 states and 84 transitions. [2023-11-29 02:41:38,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 02:41:38,769 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2023-11-29 02:41:38,769 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:41:38,770 INFO L225 Difference]: With dead ends: 76 [2023-11-29 02:41:38,770 INFO L226 Difference]: Without dead ends: 75 [2023-11-29 02:41:38,770 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2023-11-29 02:41:38,771 INFO L413 NwaCegarLoop]: 27 mSDtfsCounter, 87 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 87 SdHoareTripleChecker+Valid, 52 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 02:41:38,771 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [87 Valid, 52 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 02:41:38,772 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2023-11-29 02:41:38,778 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 62. [2023-11-29 02:41:38,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62 states, 50 states have (on average 1.56) internal successors, (78), 61 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 02:41:38,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 78 transitions. [2023-11-29 02:41:38,780 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 78 transitions. Word has length 11 [2023-11-29 02:41:38,780 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:41:38,780 INFO L495 AbstractCegarLoop]: Abstraction has 62 states and 78 transitions. [2023-11-29 02:41:38,780 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 02:41:38,781 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 78 transitions. [2023-11-29 02:41:38,781 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-11-29 02:41:38,781 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:41:38,781 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:41:38,788 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daf046c9-e4e5-4b39-a11a-e789d555d2cd/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2023-11-29 02:41:38,989 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daf046c9-e4e5-4b39-a11a-e789d555d2cd/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:41:38,989 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2023-11-29 02:41:38,990 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:41:38,990 INFO L85 PathProgramCache]: Analyzing trace with hash 406560599, now seen corresponding path program 1 times [2023-11-29 02:41:38,990 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:41:38,991 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [266951581] [2023-11-29 02:41:38,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:41:38,991 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:41:39,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:41:39,036 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-29 02:41:39,037 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:41:39,037 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [266951581] [2023-11-29 02:41:39,037 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [266951581] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:41:39,037 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:41:39,037 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 02:41:39,038 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [136772093] [2023-11-29 02:41:39,038 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:41:39,038 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 02:41:39,038 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:41:39,039 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 02:41:39,039 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 02:41:39,039 INFO L87 Difference]: Start difference. First operand 62 states and 78 transitions. Second operand has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 02:41:39,099 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:41:39,099 INFO L93 Difference]: Finished difference Result 103 states and 131 transitions. [2023-11-29 02:41:39,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 02:41:39,100 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 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 13 [2023-11-29 02:41:39,100 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:41:39,101 INFO L225 Difference]: With dead ends: 103 [2023-11-29 02:41:39,101 INFO L226 Difference]: Without dead ends: 97 [2023-11-29 02:41:39,101 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 02:41:39,102 INFO L413 NwaCegarLoop]: 28 mSDtfsCounter, 19 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 46 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 02:41:39,103 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 46 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 02:41:39,104 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97 states. [2023-11-29 02:41:39,112 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 82. [2023-11-29 02:41:39,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 82 states, 70 states have (on average 1.4714285714285715) internal successors, (103), 81 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 02:41:39,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 103 transitions. [2023-11-29 02:41:39,114 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 103 transitions. Word has length 13 [2023-11-29 02:41:39,114 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:41:39,114 INFO L495 AbstractCegarLoop]: Abstraction has 82 states and 103 transitions. [2023-11-29 02:41:39,114 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 02:41:39,114 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 103 transitions. [2023-11-29 02:41:39,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2023-11-29 02:41:39,115 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:41:39,115 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:41:39,115 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-29 02:41:39,116 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2023-11-29 02:41:39,116 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:41:39,116 INFO L85 PathProgramCache]: Analyzing trace with hash -281524360, now seen corresponding path program 1 times [2023-11-29 02:41:39,117 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:41:39,117 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1861683613] [2023-11-29 02:41:39,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:41:39,117 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:41:39,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:41:39,161 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-29 02:41:39,161 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:41:39,161 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1861683613] [2023-11-29 02:41:39,162 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1861683613] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:41:39,162 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:41:39,162 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 02:41:39,162 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [317796687] [2023-11-29 02:41:39,162 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:41:39,162 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 02:41:39,163 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:41:39,163 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 02:41:39,163 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 02:41:39,164 INFO L87 Difference]: Start difference. First operand 82 states and 103 transitions. Second operand has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 02:41:39,202 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:41:39,203 INFO L93 Difference]: Finished difference Result 82 states and 103 transitions. [2023-11-29 02:41:39,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 02:41:39,203 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2023-11-29 02:41:39,204 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:41:39,204 INFO L225 Difference]: With dead ends: 82 [2023-11-29 02:41:39,205 INFO L226 Difference]: Without dead ends: 81 [2023-11-29 02:41:39,205 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-29 02:41:39,206 INFO L413 NwaCegarLoop]: 26 mSDtfsCounter, 26 mSDsluCounter, 31 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 57 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 02:41:39,206 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 57 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 02:41:39,207 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81 states. [2023-11-29 02:41:39,216 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81 to 81. [2023-11-29 02:41:39,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 81 states, 70 states have (on average 1.457142857142857) internal successors, (102), 80 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 02:41:39,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 102 transitions. [2023-11-29 02:41:39,217 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 102 transitions. Word has length 14 [2023-11-29 02:41:39,218 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:41:39,218 INFO L495 AbstractCegarLoop]: Abstraction has 81 states and 102 transitions. [2023-11-29 02:41:39,218 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 02:41:39,218 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 102 transitions. [2023-11-29 02:41:39,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2023-11-29 02:41:39,219 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:41:39,219 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:41:39,219 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-11-29 02:41:39,219 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2023-11-29 02:41:39,220 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:41:39,220 INFO L85 PathProgramCache]: Analyzing trace with hash -137320460, now seen corresponding path program 1 times [2023-11-29 02:41:39,220 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:41:39,220 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1385942669] [2023-11-29 02:41:39,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:41:39,220 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:41:39,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:41:39,260 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-29 02:41:39,261 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:41:39,261 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1385942669] [2023-11-29 02:41:39,261 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1385942669] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:41:39,261 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:41:39,262 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 02:41:39,262 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1182174807] [2023-11-29 02:41:39,262 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:41:39,263 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 02:41:39,263 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:41:39,263 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 02:41:39,263 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 02:41:39,264 INFO L87 Difference]: Start difference. First operand 81 states and 102 transitions. Second operand has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 02:41:39,310 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:41:39,311 INFO L93 Difference]: Finished difference Result 93 states and 106 transitions. [2023-11-29 02:41:39,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 02:41:39,311 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2023-11-29 02:41:39,312 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:41:39,312 INFO L225 Difference]: With dead ends: 93 [2023-11-29 02:41:39,313 INFO L226 Difference]: Without dead ends: 92 [2023-11-29 02:41:39,313 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-29 02:41:39,314 INFO L413 NwaCegarLoop]: 28 mSDtfsCounter, 22 mSDsluCounter, 53 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 81 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 02:41:39,314 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 81 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 02:41:39,315 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2023-11-29 02:41:39,323 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 84. [2023-11-29 02:41:39,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 84 states, 73 states have (on average 1.4383561643835616) internal successors, (105), 83 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 02:41:39,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 105 transitions. [2023-11-29 02:41:39,324 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 105 transitions. Word has length 15 [2023-11-29 02:41:39,324 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:41:39,324 INFO L495 AbstractCegarLoop]: Abstraction has 84 states and 105 transitions. [2023-11-29 02:41:39,324 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 02:41:39,325 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 105 transitions. [2023-11-29 02:41:39,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2023-11-29 02:41:39,326 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:41:39,326 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:41:39,326 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-11-29 02:41:39,326 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2023-11-29 02:41:39,327 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:41:39,327 INFO L85 PathProgramCache]: Analyzing trace with hash 1212439238, now seen corresponding path program 1 times [2023-11-29 02:41:39,327 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:41:39,327 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1325363746] [2023-11-29 02:41:39,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:41:39,327 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:41:39,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:41:39,380 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-29 02:41:39,381 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:41:39,381 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1325363746] [2023-11-29 02:41:39,381 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1325363746] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:41:39,381 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:41:39,381 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 02:41:39,382 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1387445239] [2023-11-29 02:41:39,382 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:41:39,382 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 02:41:39,382 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:41:39,383 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 02:41:39,383 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 02:41:39,383 INFO L87 Difference]: Start difference. First operand 84 states and 105 transitions. Second operand has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 4 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 02:41:39,456 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:41:39,456 INFO L93 Difference]: Finished difference Result 101 states and 123 transitions. [2023-11-29 02:41:39,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 02:41:39,457 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 4 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 [2023-11-29 02:41:39,457 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:41:39,458 INFO L225 Difference]: With dead ends: 101 [2023-11-29 02:41:39,458 INFO L226 Difference]: Without dead ends: 99 [2023-11-29 02:41:39,459 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-29 02:41:39,460 INFO L413 NwaCegarLoop]: 25 mSDtfsCounter, 14 mSDsluCounter, 39 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 64 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 02:41:39,460 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 64 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 02:41:39,461 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2023-11-29 02:41:39,468 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 90. [2023-11-29 02:41:39,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 90 states, 79 states have (on average 1.4050632911392404) internal successors, (111), 89 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) [2023-11-29 02:41:39,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 111 transitions. [2023-11-29 02:41:39,470 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 111 transitions. Word has length 17 [2023-11-29 02:41:39,470 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:41:39,470 INFO L495 AbstractCegarLoop]: Abstraction has 90 states and 111 transitions. [2023-11-29 02:41:39,470 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 4 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 02:41:39,470 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 111 transitions. [2023-11-29 02:41:39,471 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2023-11-29 02:41:39,471 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:41:39,471 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 4, 1, 1, 1, 1] [2023-11-29 02:41:39,471 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-11-29 02:41:39,472 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2023-11-29 02:41:39,472 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:41:39,472 INFO L85 PathProgramCache]: Analyzing trace with hash 828839330, now seen corresponding path program 2 times [2023-11-29 02:41:39,472 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:41:39,472 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1579658892] [2023-11-29 02:41:39,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:41:39,473 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:41:39,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:41:39,658 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 02:41:39,658 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:41:39,658 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1579658892] [2023-11-29 02:41:39,659 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1579658892] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 02:41:39,659 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1936393068] [2023-11-29 02:41:39,659 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 02:41:39,659 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:41:39,659 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daf046c9-e4e5-4b39-a11a-e789d555d2cd/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:41:39,661 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daf046c9-e4e5-4b39-a11a-e789d555d2cd/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:41:39,664 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daf046c9-e4e5-4b39-a11a-e789d555d2cd/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-29 02:41:39,738 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-11-29 02:41:39,738 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 02:41:39,739 INFO L262 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 02:41:39,740 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:41:39,807 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-11-29 02:41:39,807 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 02:41:39,865 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-11-29 02:41:39,866 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1936393068] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 02:41:39,866 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-29 02:41:39,866 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 2, 2] total 13 [2023-11-29 02:41:39,866 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [995890707] [2023-11-29 02:41:39,866 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-29 02:41:39,867 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-11-29 02:41:39,867 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:41:39,868 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-11-29 02:41:39,868 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=132, Unknown=0, NotChecked=0, Total=182 [2023-11-29 02:41:39,868 INFO L87 Difference]: Start difference. First operand 90 states and 111 transitions. Second operand has 14 states, 13 states have (on average 2.076923076923077) internal successors, (27), 14 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 02:41:40,094 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:41:40,094 INFO L93 Difference]: Finished difference Result 97 states and 120 transitions. [2023-11-29 02:41:40,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-29 02:41:40,095 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.076923076923077) internal successors, (27), 14 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 18 [2023-11-29 02:41:40,095 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:41:40,096 INFO L225 Difference]: With dead ends: 97 [2023-11-29 02:41:40,096 INFO L226 Difference]: Without dead ends: 96 [2023-11-29 02:41:40,097 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 32 SyntacticMatches, 1 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 97 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=174, Invalid=426, Unknown=0, NotChecked=0, Total=600 [2023-11-29 02:41:40,098 INFO L413 NwaCegarLoop]: 29 mSDtfsCounter, 64 mSDsluCounter, 145 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 64 SdHoareTripleChecker+Valid, 174 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 02:41:40,098 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [64 Valid, 174 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 02:41:40,099 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2023-11-29 02:41:40,105 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 78. [2023-11-29 02:41:40,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78 states, 68 states have (on average 1.411764705882353) internal successors, (96), 77 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 02:41:40,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 96 transitions. [2023-11-29 02:41:40,106 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 96 transitions. Word has length 18 [2023-11-29 02:41:40,106 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:41:40,106 INFO L495 AbstractCegarLoop]: Abstraction has 78 states and 96 transitions. [2023-11-29 02:41:40,106 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.076923076923077) internal successors, (27), 14 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 02:41:40,107 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 96 transitions. [2023-11-29 02:41:40,107 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2023-11-29 02:41:40,107 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:41:40,108 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:41:40,115 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daf046c9-e4e5-4b39-a11a-e789d555d2cd/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2023-11-29 02:41:40,308 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daf046c9-e4e5-4b39-a11a-e789d555d2cd/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:41:40,309 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2023-11-29 02:41:40,309 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:41:40,310 INFO L85 PathProgramCache]: Analyzing trace with hash -2104893361, now seen corresponding path program 1 times [2023-11-29 02:41:40,310 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:41:40,310 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1852849407] [2023-11-29 02:41:40,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:41:40,310 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:41:40,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:41:40,367 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-29 02:41:40,367 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:41:40,368 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1852849407] [2023-11-29 02:41:40,368 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1852849407] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:41:40,368 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:41:40,368 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 02:41:40,368 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1772212662] [2023-11-29 02:41:40,368 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:41:40,369 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 02:41:40,369 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:41:40,369 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 02:41:40,370 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 02:41:40,370 INFO L87 Difference]: Start difference. First operand 78 states and 96 transitions. Second operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 02:41:40,434 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:41:40,435 INFO L93 Difference]: Finished difference Result 122 states and 144 transitions. [2023-11-29 02:41:40,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 02:41:40,435 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 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 18 [2023-11-29 02:41:40,435 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:41:40,436 INFO L225 Difference]: With dead ends: 122 [2023-11-29 02:41:40,436 INFO L226 Difference]: Without dead ends: 79 [2023-11-29 02:41:40,437 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 02:41:40,438 INFO L413 NwaCegarLoop]: 23 mSDtfsCounter, 12 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 34 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 02:41:40,438 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 34 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 02:41:40,439 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states. [2023-11-29 02:41:40,444 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 78. [2023-11-29 02:41:40,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78 states, 68 states have (on average 1.3823529411764706) internal successors, (94), 77 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 02:41:40,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 94 transitions. [2023-11-29 02:41:40,446 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 94 transitions. Word has length 18 [2023-11-29 02:41:40,446 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:41:40,446 INFO L495 AbstractCegarLoop]: Abstraction has 78 states and 94 transitions. [2023-11-29 02:41:40,446 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 02:41:40,446 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 94 transitions. [2023-11-29 02:41:40,447 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2023-11-29 02:41:40,447 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:41:40,447 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:41:40,448 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-11-29 02:41:40,448 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2023-11-29 02:41:40,448 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:41:40,448 INFO L85 PathProgramCache]: Analyzing trace with hash 770017602, now seen corresponding path program 1 times [2023-11-29 02:41:40,449 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:41:40,449 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1482391865] [2023-11-29 02:41:40,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:41:40,449 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:41:40,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:41:40,517 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-29 02:41:40,517 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:41:40,518 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1482391865] [2023-11-29 02:41:40,518 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1482391865] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 02:41:40,518 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [859406886] [2023-11-29 02:41:40,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:41:40,518 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:41:40,518 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daf046c9-e4e5-4b39-a11a-e789d555d2cd/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:41:40,520 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daf046c9-e4e5-4b39-a11a-e789d555d2cd/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:41:40,523 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daf046c9-e4e5-4b39-a11a-e789d555d2cd/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-11-29 02:41:40,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:41:40,602 INFO L262 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-29 02:41:40,604 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:41:40,673 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-29 02:41:40,673 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 02:41:40,740 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-29 02:41:40,741 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [859406886] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 02:41:40,741 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-29 02:41:40,741 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 7, 7] total 11 [2023-11-29 02:41:40,741 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [786538465] [2023-11-29 02:41:40,741 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-29 02:41:40,742 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-29 02:41:40,742 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:41:40,742 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-29 02:41:40,743 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2023-11-29 02:41:40,743 INFO L87 Difference]: Start difference. First operand 78 states and 94 transitions. Second operand has 11 states, 11 states have (on average 3.727272727272727) internal successors, (41), 11 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 02:41:41,001 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:41:41,001 INFO L93 Difference]: Finished difference Result 192 states and 241 transitions. [2023-11-29 02:41:41,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-29 02:41:41,001 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 3.727272727272727) internal successors, (41), 11 states have internal predecessors, (41), 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 22 [2023-11-29 02:41:41,002 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:41:41,002 INFO L225 Difference]: With dead ends: 192 [2023-11-29 02:41:41,002 INFO L226 Difference]: Without dead ends: 121 [2023-11-29 02:41:41,003 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 33 SyntacticMatches, 4 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=171, Unknown=0, NotChecked=0, Total=210 [2023-11-29 02:41:41,004 INFO L413 NwaCegarLoop]: 23 mSDtfsCounter, 35 mSDsluCounter, 160 mSDsCounter, 0 mSdLazyCounter, 309 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 183 SdHoareTripleChecker+Invalid, 314 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 309 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 02:41:41,004 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 183 Invalid, 314 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 309 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 02:41:41,005 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121 states. [2023-11-29 02:41:41,010 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121 to 99. [2023-11-29 02:41:41,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 99 states, 89 states have (on average 1.3932584269662922) internal successors, (124), 98 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 02:41:41,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 124 transitions. [2023-11-29 02:41:41,012 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 124 transitions. Word has length 22 [2023-11-29 02:41:41,012 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:41:41,012 INFO L495 AbstractCegarLoop]: Abstraction has 99 states and 124 transitions. [2023-11-29 02:41:41,012 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 3.727272727272727) internal successors, (41), 11 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 02:41:41,012 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 124 transitions. [2023-11-29 02:41:41,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2023-11-29 02:41:41,013 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:41:41,013 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:41:41,019 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daf046c9-e4e5-4b39-a11a-e789d555d2cd/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2023-11-29 02:41:41,216 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daf046c9-e4e5-4b39-a11a-e789d555d2cd/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2023-11-29 02:41:41,217 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2023-11-29 02:41:41,217 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:41:41,217 INFO L85 PathProgramCache]: Analyzing trace with hash -2040048166, now seen corresponding path program 1 times [2023-11-29 02:41:41,217 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:41:41,218 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [957984975] [2023-11-29 02:41:41,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:41:41,218 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:41:41,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:41:41,300 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-11-29 02:41:41,300 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:41:41,300 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [957984975] [2023-11-29 02:41:41,300 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [957984975] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 02:41:41,300 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2011019451] [2023-11-29 02:41:41,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:41:41,301 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:41:41,301 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daf046c9-e4e5-4b39-a11a-e789d555d2cd/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:41:41,302 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daf046c9-e4e5-4b39-a11a-e789d555d2cd/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:41:41,304 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daf046c9-e4e5-4b39-a11a-e789d555d2cd/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-11-29 02:41:41,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:41:41,387 INFO L262 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 02:41:41,389 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:41:41,426 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-11-29 02:41:41,426 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 02:41:41,477 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-11-29 02:41:41,477 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2011019451] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 02:41:41,478 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-29 02:41:41,478 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 9 [2023-11-29 02:41:41,478 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1565446168] [2023-11-29 02:41:41,478 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-29 02:41:41,479 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-29 02:41:41,479 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:41:41,480 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-29 02:41:41,480 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2023-11-29 02:41:41,480 INFO L87 Difference]: Start difference. First operand 99 states and 124 transitions. Second operand has 10 states, 9 states have (on average 5.333333333333333) internal successors, (48), 10 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) [2023-11-29 02:41:41,634 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:41:41,635 INFO L93 Difference]: Finished difference Result 139 states and 171 transitions. [2023-11-29 02:41:41,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-29 02:41:41,635 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 5.333333333333333) internal successors, (48), 10 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) Word has length 26 [2023-11-29 02:41:41,636 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:41:41,637 INFO L225 Difference]: With dead ends: 139 [2023-11-29 02:41:41,637 INFO L226 Difference]: Without dead ends: 135 [2023-11-29 02:41:41,637 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2023-11-29 02:41:41,638 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 88 mSDsluCounter, 71 mSDsCounter, 0 mSdLazyCounter, 105 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 88 SdHoareTripleChecker+Valid, 89 SdHoareTripleChecker+Invalid, 126 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 105 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 02:41:41,639 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [88 Valid, 89 Invalid, 126 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 105 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 02:41:41,640 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 135 states. [2023-11-29 02:41:41,647 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 135 to 115. [2023-11-29 02:41:41,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 115 states, 107 states have (on average 1.3177570093457944) internal successors, (141), 114 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 02:41:41,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 141 transitions. [2023-11-29 02:41:41,649 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 141 transitions. Word has length 26 [2023-11-29 02:41:41,649 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:41:41,649 INFO L495 AbstractCegarLoop]: Abstraction has 115 states and 141 transitions. [2023-11-29 02:41:41,649 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 5.333333333333333) internal successors, (48), 10 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) [2023-11-29 02:41:41,649 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 141 transitions. [2023-11-29 02:41:41,650 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2023-11-29 02:41:41,650 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:41:41,650 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:41:41,658 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daf046c9-e4e5-4b39-a11a-e789d555d2cd/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-11-29 02:41:41,856 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daf046c9-e4e5-4b39-a11a-e789d555d2cd/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2023-11-29 02:41:41,857 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2023-11-29 02:41:41,857 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:41:41,857 INFO L85 PathProgramCache]: Analyzing trace with hash -1287581498, now seen corresponding path program 1 times [2023-11-29 02:41:41,857 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:41:41,858 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1898616591] [2023-11-29 02:41:41,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:41:41,858 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:41:41,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:41:41,918 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2023-11-29 02:41:41,919 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:41:41,919 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1898616591] [2023-11-29 02:41:41,919 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1898616591] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:41:41,919 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:41:41,919 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 02:41:41,920 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1283127194] [2023-11-29 02:41:41,920 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:41:41,920 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 02:41:41,920 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:41:41,921 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 02:41:41,921 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 02:41:41,921 INFO L87 Difference]: Start difference. First operand 115 states and 141 transitions. Second operand has 4 states, 3 states have (on average 7.666666666666667) internal successors, (23), 4 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 02:41:41,974 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:41:41,974 INFO L93 Difference]: Finished difference Result 115 states and 141 transitions. [2023-11-29 02:41:41,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 02:41:41,975 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 7.666666666666667) internal successors, (23), 4 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2023-11-29 02:41:41,975 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:41:41,976 INFO L225 Difference]: With dead ends: 115 [2023-11-29 02:41:41,976 INFO L226 Difference]: Without dead ends: 111 [2023-11-29 02:41:41,976 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 [2023-11-29 02:41:41,977 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 20 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 36 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 02:41:41,978 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 36 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 02:41:41,978 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states. [2023-11-29 02:41:41,986 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 111. [2023-11-29 02:41:41,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 111 states, 107 states have (on average 1.205607476635514) internal successors, (129), 110 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 02:41:41,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 129 transitions. [2023-11-29 02:41:41,988 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 129 transitions. Word has length 29 [2023-11-29 02:41:41,988 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:41:41,988 INFO L495 AbstractCegarLoop]: Abstraction has 111 states and 129 transitions. [2023-11-29 02:41:41,988 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 7.666666666666667) internal successors, (23), 4 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 02:41:41,989 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 129 transitions. [2023-11-29 02:41:41,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2023-11-29 02:41:41,989 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:41:41,990 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:41:41,990 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-11-29 02:41:41,990 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2023-11-29 02:41:41,990 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:41:41,991 INFO L85 PathProgramCache]: Analyzing trace with hash 1998842447, now seen corresponding path program 1 times [2023-11-29 02:41:41,991 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:41:41,991 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [859724046] [2023-11-29 02:41:41,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:41:41,991 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:41:42,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:41:42,189 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 5 proven. 5 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-29 02:41:42,189 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:41:42,189 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [859724046] [2023-11-29 02:41:42,189 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [859724046] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 02:41:42,189 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [700571767] [2023-11-29 02:41:42,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:41:42,190 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:41:42,190 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daf046c9-e4e5-4b39-a11a-e789d555d2cd/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:41:42,193 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daf046c9-e4e5-4b39-a11a-e789d555d2cd/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:41:42,197 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daf046c9-e4e5-4b39-a11a-e789d555d2cd/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-11-29 02:41:42,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:41:42,291 INFO L262 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-29 02:41:42,294 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:41:42,455 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-11-29 02:41:42,455 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 02:41:42,456 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [700571767] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:41:42,456 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-29 02:41:42,456 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [10] total 14 [2023-11-29 02:41:42,456 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1067521327] [2023-11-29 02:41:42,456 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:41:42,457 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 02:41:42,457 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:41:42,457 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 02:41:42,458 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=176, Unknown=0, NotChecked=0, Total=210 [2023-11-29 02:41:42,458 INFO L87 Difference]: Start difference. First operand 111 states and 129 transitions. Second operand has 6 states, 5 states have (on average 5.0) internal successors, (25), 5 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 02:41:42,574 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:41:42,574 INFO L93 Difference]: Finished difference Result 113 states and 129 transitions. [2023-11-29 02:41:42,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 02:41:42,575 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.0) internal successors, (25), 5 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 30 [2023-11-29 02:41:42,575 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:41:42,576 INFO L225 Difference]: With dead ends: 113 [2023-11-29 02:41:42,576 INFO L226 Difference]: Without dead ends: 112 [2023-11-29 02:41:42,577 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=59, Invalid=283, Unknown=0, NotChecked=0, Total=342 [2023-11-29 02:41:42,578 INFO L413 NwaCegarLoop]: 28 mSDtfsCounter, 53 mSDsluCounter, 43 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 71 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 02:41:42,578 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [53 Valid, 71 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 02:41:42,579 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112 states. [2023-11-29 02:41:42,586 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112 to 110. [2023-11-29 02:41:42,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 110 states, 107 states have (on average 1.1682242990654206) internal successors, (125), 109 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 02:41:42,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 125 transitions. [2023-11-29 02:41:42,588 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 125 transitions. Word has length 30 [2023-11-29 02:41:42,588 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:41:42,588 INFO L495 AbstractCegarLoop]: Abstraction has 110 states and 125 transitions. [2023-11-29 02:41:42,588 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.0) internal successors, (25), 5 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 02:41:42,588 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 125 transitions. [2023-11-29 02:41:42,589 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2023-11-29 02:41:42,589 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:41:42,589 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:41:42,596 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daf046c9-e4e5-4b39-a11a-e789d555d2cd/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2023-11-29 02:41:42,795 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daf046c9-e4e5-4b39-a11a-e789d555d2cd/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2023-11-29 02:41:42,795 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2023-11-29 02:41:42,796 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:41:42,796 INFO L85 PathProgramCache]: Analyzing trace with hash 1836762451, now seen corresponding path program 1 times [2023-11-29 02:41:42,796 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:41:42,796 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [187530000] [2023-11-29 02:41:42,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:41:42,796 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:41:42,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:41:42,847 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-11-29 02:41:42,848 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:41:42,848 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [187530000] [2023-11-29 02:41:42,848 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [187530000] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:41:42,848 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:41:42,848 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 02:41:42,848 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [917186172] [2023-11-29 02:41:42,848 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:41:42,849 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 02:41:42,849 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:41:42,849 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 02:41:42,849 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 02:41:42,849 INFO L87 Difference]: Start difference. First operand 110 states and 125 transitions. Second operand has 4 states, 3 states have (on average 7.666666666666667) internal successors, (23), 4 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 02:41:42,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:41:42,884 INFO L93 Difference]: Finished difference Result 110 states and 125 transitions. [2023-11-29 02:41:42,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 02:41:42,885 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 7.666666666666667) internal successors, (23), 4 states have internal predecessors, (23), 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 39 [2023-11-29 02:41:42,885 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:41:42,885 INFO L225 Difference]: With dead ends: 110 [2023-11-29 02:41:42,885 INFO L226 Difference]: Without dead ends: 109 [2023-11-29 02:41:42,886 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-29 02:41:42,886 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 11 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 42 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 02:41:42,887 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 42 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 02:41:42,887 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2023-11-29 02:41:42,893 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 109. [2023-11-29 02:41:42,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 109 states, 107 states have (on average 1.1495327102803738) internal successors, (123), 108 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 02:41:42,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 123 transitions. [2023-11-29 02:41:42,894 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 123 transitions. Word has length 39 [2023-11-29 02:41:42,894 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:41:42,894 INFO L495 AbstractCegarLoop]: Abstraction has 109 states and 123 transitions. [2023-11-29 02:41:42,894 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 7.666666666666667) internal successors, (23), 4 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 02:41:42,894 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 123 transitions. [2023-11-29 02:41:42,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2023-11-29 02:41:42,895 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:41:42,895 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:41:42,895 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2023-11-29 02:41:42,896 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2023-11-29 02:41:42,896 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:41:42,896 INFO L85 PathProgramCache]: Analyzing trace with hash 1466046981, now seen corresponding path program 1 times [2023-11-29 02:41:42,896 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:41:42,896 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1760476474] [2023-11-29 02:41:42,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:41:42,896 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:41:42,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:41:43,055 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 22 proven. 5 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-11-29 02:41:43,055 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:41:43,055 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1760476474] [2023-11-29 02:41:43,055 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1760476474] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 02:41:43,055 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [290039444] [2023-11-29 02:41:43,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:41:43,055 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:41:43,056 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daf046c9-e4e5-4b39-a11a-e789d555d2cd/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:41:43,057 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daf046c9-e4e5-4b39-a11a-e789d555d2cd/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:41:43,059 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daf046c9-e4e5-4b39-a11a-e789d555d2cd/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-11-29 02:41:43,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:41:43,140 INFO L262 TraceCheckSpWp]: Trace formula consists of 121 conjuncts, 12 conjunts are in the unsatisfiable core [2023-11-29 02:41:43,142 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:41:43,267 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 22 proven. 5 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-11-29 02:41:43,267 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 02:41:43,369 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 22 proven. 5 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-11-29 02:41:43,369 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [290039444] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 02:41:43,369 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-29 02:41:43,369 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 16 [2023-11-29 02:41:43,369 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [331831144] [2023-11-29 02:41:43,369 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-29 02:41:43,370 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-11-29 02:41:43,370 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:41:43,370 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-11-29 02:41:43,371 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=196, Unknown=0, NotChecked=0, Total=240 [2023-11-29 02:41:43,371 INFO L87 Difference]: Start difference. First operand 109 states and 123 transitions. Second operand has 16 states, 16 states have (on average 3.6875) internal successors, (59), 16 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) [2023-11-29 02:41:43,496 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:41:43,496 INFO L93 Difference]: Finished difference Result 215 states and 242 transitions. [2023-11-29 02:41:43,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-29 02:41:43,497 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 3.6875) internal successors, (59), 16 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) Word has length 43 [2023-11-29 02:41:43,497 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:41:43,498 INFO L225 Difference]: With dead ends: 215 [2023-11-29 02:41:43,498 INFO L226 Difference]: Without dead ends: 161 [2023-11-29 02:41:43,498 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 73 SyntacticMatches, 8 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 143 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=84, Invalid=378, Unknown=0, NotChecked=0, Total=462 [2023-11-29 02:41:43,499 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 50 mSDsluCounter, 112 mSDsCounter, 0 mSdLazyCounter, 114 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 127 SdHoareTripleChecker+Invalid, 114 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 114 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 02:41:43,499 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [50 Valid, 127 Invalid, 114 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 114 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 02:41:43,500 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 161 states. [2023-11-29 02:41:43,508 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 161 to 158. [2023-11-29 02:41:43,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 158 states, 156 states have (on average 1.1346153846153846) internal successors, (177), 157 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) [2023-11-29 02:41:43,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158 states to 158 states and 177 transitions. [2023-11-29 02:41:43,509 INFO L78 Accepts]: Start accepts. Automaton has 158 states and 177 transitions. Word has length 43 [2023-11-29 02:41:43,510 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:41:43,510 INFO L495 AbstractCegarLoop]: Abstraction has 158 states and 177 transitions. [2023-11-29 02:41:43,510 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 3.6875) internal successors, (59), 16 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) [2023-11-29 02:41:43,510 INFO L276 IsEmpty]: Start isEmpty. Operand 158 states and 177 transitions. [2023-11-29 02:41:43,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2023-11-29 02:41:43,510 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:41:43,511 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:41:43,516 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daf046c9-e4e5-4b39-a11a-e789d555d2cd/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2023-11-29 02:41:43,711 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daf046c9-e4e5-4b39-a11a-e789d555d2cd/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:41:43,711 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2023-11-29 02:41:43,712 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:41:43,712 INFO L85 PathProgramCache]: Analyzing trace with hash -1424561798, now seen corresponding path program 2 times [2023-11-29 02:41:43,712 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:41:43,712 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1905811925] [2023-11-29 02:41:43,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:41:43,712 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:41:43,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:41:43,890 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2023-11-29 02:41:43,890 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:41:43,890 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1905811925] [2023-11-29 02:41:43,890 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1905811925] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 02:41:43,891 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [587399127] [2023-11-29 02:41:43,891 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 02:41:43,891 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:41:43,891 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daf046c9-e4e5-4b39-a11a-e789d555d2cd/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:41:43,892 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daf046c9-e4e5-4b39-a11a-e789d555d2cd/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:41:43,896 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daf046c9-e4e5-4b39-a11a-e789d555d2cd/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-11-29 02:41:43,963 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-11-29 02:41:43,964 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 02:41:43,964 INFO L262 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-29 02:41:43,966 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:41:43,995 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2023-11-29 02:41:43,995 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 02:41:43,995 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [587399127] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:41:43,995 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-29 02:41:43,995 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 11 [2023-11-29 02:41:43,996 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1442293971] [2023-11-29 02:41:43,996 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:41:43,996 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 02:41:43,996 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:41:43,997 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 02:41:43,997 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2023-11-29 02:41:43,997 INFO L87 Difference]: Start difference. First operand 158 states and 177 transitions. Second operand has 4 states, 3 states have (on average 7.333333333333333) 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) [2023-11-29 02:41:44,054 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:41:44,054 INFO L93 Difference]: Finished difference Result 158 states and 177 transitions. [2023-11-29 02:41:44,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 02:41:44,054 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 7.333333333333333) 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 44 [2023-11-29 02:41:44,055 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:41:44,056 INFO L225 Difference]: With dead ends: 158 [2023-11-29 02:41:44,056 INFO L226 Difference]: Without dead ends: 111 [2023-11-29 02:41:44,056 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2023-11-29 02:41:44,057 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 29 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 28 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 02:41:44,058 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 28 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 02:41:44,059 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states. [2023-11-29 02:41:44,064 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 55. [2023-11-29 02:41:44,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55 states, 54 states have (on average 1.1111111111111112) internal successors, (60), 54 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 02:41:44,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 60 transitions. [2023-11-29 02:41:44,065 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 60 transitions. Word has length 44 [2023-11-29 02:41:44,066 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:41:44,066 INFO L495 AbstractCegarLoop]: Abstraction has 55 states and 60 transitions. [2023-11-29 02:41:44,066 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 7.333333333333333) 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) [2023-11-29 02:41:44,066 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 60 transitions. [2023-11-29 02:41:44,066 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2023-11-29 02:41:44,067 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:41:44,067 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:41:44,073 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daf046c9-e4e5-4b39-a11a-e789d555d2cd/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2023-11-29 02:41:44,267 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daf046c9-e4e5-4b39-a11a-e789d555d2cd/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20 [2023-11-29 02:41:44,268 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2023-11-29 02:41:44,268 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:41:44,268 INFO L85 PathProgramCache]: Analyzing trace with hash 152313104, now seen corresponding path program 2 times [2023-11-29 02:41:44,268 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:41:44,269 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2112503220] [2023-11-29 02:41:44,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:41:44,269 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:41:44,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:41:44,519 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 20 proven. 14 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-11-29 02:41:44,519 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:41:44,519 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2112503220] [2023-11-29 02:41:44,519 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2112503220] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 02:41:44,519 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1498843131] [2023-11-29 02:41:44,519 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 02:41:44,520 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:41:44,520 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daf046c9-e4e5-4b39-a11a-e789d555d2cd/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:41:44,523 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daf046c9-e4e5-4b39-a11a-e789d555d2cd/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:41:44,525 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daf046c9-e4e5-4b39-a11a-e789d555d2cd/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2023-11-29 02:41:44,603 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-11-29 02:41:44,603 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 02:41:44,604 INFO L262 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-29 02:41:44,606 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:41:44,747 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2023-11-29 02:41:44,747 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 02:41:44,858 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2023-11-29 02:41:44,859 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1498843131] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 02:41:44,859 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-29 02:41:44,859 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 4, 4] total 16 [2023-11-29 02:41:44,859 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2064953351] [2023-11-29 02:41:44,859 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-29 02:41:44,860 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-11-29 02:41:44,860 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:41:44,861 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-11-29 02:41:44,861 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=207, Unknown=0, NotChecked=0, Total=240 [2023-11-29 02:41:44,861 INFO L87 Difference]: Start difference. First operand 55 states and 60 transitions. Second operand has 16 states, 16 states have (on average 4.875) internal successors, (78), 16 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 02:41:45,336 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:41:45,337 INFO L93 Difference]: Finished difference Result 91 states and 101 transitions. [2023-11-29 02:41:45,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-11-29 02:41:45,338 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 4.875) internal successors, (78), 16 states have internal predecessors, (78), 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 [2023-11-29 02:41:45,338 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:41:45,338 INFO L225 Difference]: With dead ends: 91 [2023-11-29 02:41:45,339 INFO L226 Difference]: Without dead ends: 0 [2023-11-29 02:41:45,340 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 85 SyntacticMatches, 3 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 181 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=171, Invalid=821, Unknown=0, NotChecked=0, Total=992 [2023-11-29 02:41:45,340 INFO L413 NwaCegarLoop]: 1 mSDtfsCounter, 216 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 325 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 216 SdHoareTripleChecker+Valid, 13 SdHoareTripleChecker+Invalid, 329 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 325 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 02:41:45,341 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [216 Valid, 13 Invalid, 329 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 325 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 02:41:45,341 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-11-29 02:41:45,341 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-11-29 02:41:45,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 02:41:45,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-11-29 02:41:45,342 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 46 [2023-11-29 02:41:45,342 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:41:45,342 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-29 02:41:45,342 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 4.875) internal successors, (78), 16 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 02:41:45,342 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-11-29 02:41:45,342 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-29 02:41:45,345 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 14 remaining) [2023-11-29 02:41:45,346 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 14 remaining) [2023-11-29 02:41:45,346 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 14 remaining) [2023-11-29 02:41:45,346 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 14 remaining) [2023-11-29 02:41:45,346 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 14 remaining) [2023-11-29 02:41:45,347 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 14 remaining) [2023-11-29 02:41:45,347 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 14 remaining) [2023-11-29 02:41:45,347 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 14 remaining) [2023-11-29 02:41:45,347 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 14 remaining) [2023-11-29 02:41:45,347 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 14 remaining) [2023-11-29 02:41:45,347 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 14 remaining) [2023-11-29 02:41:45,348 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 14 remaining) [2023-11-29 02:41:45,348 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 14 remaining) [2023-11-29 02:41:45,348 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 14 remaining) [2023-11-29 02:41:45,355 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daf046c9-e4e5-4b39-a11a-e789d555d2cd/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2023-11-29 02:41:45,548 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daf046c9-e4e5-4b39-a11a-e789d555d2cd/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:41:45,551 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-11-29 02:41:46,011 INFO L899 garLoopResultBuilder]: For program point L551-6(line 551) no Hoare annotation was computed. [2023-11-29 02:41:46,011 INFO L895 garLoopResultBuilder]: At program point L551-7(lines 551 554) the Hoare annotation is: (let ((.cse1 (= |ULTIMATE.start_sort_~pass~0#1| 1)) (.cse2 (<= |ULTIMATE.start_main_~array_size~0#1| 2147483647)) (.cse0 (<= 0 (+ |ULTIMATE.start_sort_~i~0#1| 2147483649))) (.cse3 (<= 3 |ULTIMATE.start_main_~array_size~0#1|)) (.cse4 (<= |ULTIMATE.start_sort_~n#1| 2147483647))) (or (and (<= |ULTIMATE.start_main_~array_size~0#1| 2) .cse0 (= |ULTIMATE.start_sort_~n#1| 2) .cse1 (<= 1 |ULTIMATE.start_main_~array_size~0#1|)) (and (<= (+ 2 |ULTIMATE.start_sort_~pass~0#1|) |ULTIMATE.start_sort_~n#1|) .cse2 .cse0 .cse3 .cse4 .cse1) (and .cse2 .cse0 .cse3 (<= 2 |ULTIMATE.start_sort_~pass~0#1|) (<= (+ |ULTIMATE.start_sort_~pass~0#1| 1) |ULTIMATE.start_sort_~n#1|) .cse4))) [2023-11-29 02:41:46,012 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 551) no Hoare annotation was computed. [2023-11-29 02:41:46,012 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW(line 551) no Hoare annotation was computed. [2023-11-29 02:41:46,012 INFO L899 garLoopResultBuilder]: For program point L552(line 552) no Hoare annotation was computed. [2023-11-29 02:41:46,012 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW(line 553) no Hoare annotation was computed. [2023-11-29 02:41:46,012 INFO L899 garLoopResultBuilder]: For program point L552-1(line 552) no Hoare annotation was computed. [2023-11-29 02:41:46,012 INFO L899 garLoopResultBuilder]: For program point L552-2(lines 552 554) no Hoare annotation was computed. [2023-11-29 02:41:46,013 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 562) no Hoare annotation was computed. [2023-11-29 02:41:46,013 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW(line 552) no Hoare annotation was computed. [2023-11-29 02:41:46,013 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW(line 550) no Hoare annotation was computed. [2023-11-29 02:41:46,013 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW(line 553) no Hoare annotation was computed. [2023-11-29 02:41:46,013 INFO L899 garLoopResultBuilder]: For program point L553(line 553) no Hoare annotation was computed. [2023-11-29 02:41:46,013 INFO L899 garLoopResultBuilder]: For program point L553-1(line 553) no Hoare annotation was computed. [2023-11-29 02:41:46,013 INFO L899 garLoopResultBuilder]: For program point L553-2(line 553) no Hoare annotation was computed. [2023-11-29 02:41:46,013 INFO L899 garLoopResultBuilder]: For program point L553-3(line 553) no Hoare annotation was computed. [2023-11-29 02:41:46,014 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 562) no Hoare annotation was computed. [2023-11-29 02:41:46,014 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-11-29 02:41:46,014 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW(line 552) no Hoare annotation was computed. [2023-11-29 02:41:46,014 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW(line 550) no Hoare annotation was computed. [2023-11-29 02:41:46,014 INFO L899 garLoopResultBuilder]: For program point L562-3(line 562) no Hoare annotation was computed. [2023-11-29 02:41:46,014 INFO L899 garLoopResultBuilder]: For program point L558(lines 558 560) no Hoare annotation was computed. [2023-11-29 02:41:46,014 INFO L899 garLoopResultBuilder]: For program point L562-4(line 562) no Hoare annotation was computed. [2023-11-29 02:41:46,015 INFO L895 garLoopResultBuilder]: At program point L562-5(lines 562 565) the Hoare annotation is: (let ((.cse0 (<= |ULTIMATE.start_main_~array_size~0#1| 2147483647)) (.cse1 (<= 1 |ULTIMATE.start_main_~array_size~0#1|))) (or (and .cse0 (= |ULTIMATE.start_main_~i~1#1| 0) .cse1) (and .cse0 (= |ULTIMATE.start_main_~i~1#1| 1) .cse1) (and .cse0 (<= 2 |ULTIMATE.start_main_~i~1#1|) (<= 3 |ULTIMATE.start_main_~array_size~0#1|)) (and .cse0 (= 2 |ULTIMATE.start_main_~i~1#1|) .cse1))) [2023-11-29 02:41:46,015 INFO L899 garLoopResultBuilder]: For program point L558-2(lines 558 560) no Hoare annotation was computed. [2023-11-29 02:41:46,015 INFO L899 garLoopResultBuilder]: For program point L562-6(lines 562 565) no Hoare annotation was computed. [2023-11-29 02:41:46,015 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW(line 553) no Hoare annotation was computed. [2023-11-29 02:41:46,015 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-11-29 02:41:46,015 INFO L899 garLoopResultBuilder]: For program point L550-2(lines 550 554) no Hoare annotation was computed. [2023-11-29 02:41:46,015 INFO L899 garLoopResultBuilder]: For program point L550-3(line 550) no Hoare annotation was computed. [2023-11-29 02:41:46,015 INFO L899 garLoopResultBuilder]: For program point L550-4(line 550) no Hoare annotation was computed. [2023-11-29 02:41:46,016 INFO L895 garLoopResultBuilder]: At program point L550-5(lines 550 554) the Hoare annotation is: (let ((.cse0 (<= |ULTIMATE.start_main_~array_size~0#1| 2147483647)) (.cse5 (<= 0 (+ |ULTIMATE.start_sort_~i~0#1| 2147483649))) (.cse1 (<= 3 |ULTIMATE.start_main_~array_size~0#1|)) (.cse6 (<= 2 |ULTIMATE.start_sort_~pass~0#1|)) (.cse2 (<= |ULTIMATE.start_sort_~n#1| 2147483647)) (.cse4 (<= |ULTIMATE.start_main_~array_size~0#1| 2)) (.cse7 (<= |ULTIMATE.start_sort_~n#1| 2)) (.cse3 (= |ULTIMATE.start_sort_~pass~0#1| 1)) (.cse8 (<= 1 |ULTIMATE.start_main_~array_size~0#1|))) (or (and (<= (+ 2 |ULTIMATE.start_sort_~pass~0#1|) |ULTIMATE.start_sort_~n#1|) .cse0 .cse1 .cse2 .cse3) (and .cse4 .cse5 .cse6 .cse7 .cse8) (and .cse0 .cse5 .cse1 .cse6 .cse2) (and .cse4 .cse7 .cse3 .cse8))) [2023-11-29 02:41:46,016 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 551) no Hoare annotation was computed. [2023-11-29 02:41:46,016 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW(line 551) no Hoare annotation was computed. [2023-11-29 02:41:46,016 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW(line 553) no Hoare annotation was computed. [2023-11-29 02:41:46,016 INFO L899 garLoopResultBuilder]: For program point L551-1(line 551) no Hoare annotation was computed. [2023-11-29 02:41:46,016 INFO L899 garLoopResultBuilder]: For program point L551-2(lines 551 554) no Hoare annotation was computed. [2023-11-29 02:41:46,017 INFO L899 garLoopResultBuilder]: For program point L551-4(lines 551 554) no Hoare annotation was computed. [2023-11-29 02:41:46,017 INFO L899 garLoopResultBuilder]: For program point L547(lines 547 555) no Hoare annotation was computed. [2023-11-29 02:41:46,017 INFO L899 garLoopResultBuilder]: For program point L551-5(line 551) no Hoare annotation was computed. [2023-11-29 02:41:46,021 INFO L445 BasicCegarLoop]: Path program histogram: [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:41:46,024 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-29 02:41:46,035 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~array_size~0 [2023-11-29 02:41:46,039 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~array_size~0 [2023-11-29 02:41:46,039 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~array_size~0 [2023-11-29 02:41:46,039 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~array_size~0 [2023-11-29 02:41:46,039 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~array_size~0 [2023-11-29 02:41:46,040 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~array_size~0 [2023-11-29 02:41:46,041 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~array_size~0 [2023-11-29 02:41:46,041 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~array_size~0 [2023-11-29 02:41:46,042 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~array_size~0 [2023-11-29 02:41:46,042 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~array_size~0 [2023-11-29 02:41:46,042 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~array_size~0 [2023-11-29 02:41:46,042 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~array_size~0 [2023-11-29 02:41:46,042 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~array_size~0 [2023-11-29 02:41:46,043 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~array_size~0 [2023-11-29 02:41:46,044 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.11 02:41:46 BoogieIcfgContainer [2023-11-29 02:41:46,044 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-29 02:41:46,045 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-29 02:41:46,045 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-29 02:41:46,045 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-29 02:41:46,046 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 02:41:35" (3/4) ... [2023-11-29 02:41:46,048 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-29 02:41:46,058 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2023-11-29 02:41:46,058 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2023-11-29 02:41:46,059 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2023-11-29 02:41:46,059 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-29 02:41:46,174 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daf046c9-e4e5-4b39-a11a-e789d555d2cd/bin/uautomizer-verify-BQ2R08f2Ya/witness.graphml [2023-11-29 02:41:46,175 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daf046c9-e4e5-4b39-a11a-e789d555d2cd/bin/uautomizer-verify-BQ2R08f2Ya/witness.yml [2023-11-29 02:41:46,175 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-29 02:41:46,176 INFO L158 Benchmark]: Toolchain (without parser) took 11081.70ms. Allocated memory was 151.0MB in the beginning and 197.1MB in the end (delta: 46.1MB). Free memory was 106.9MB in the beginning and 62.2MB in the end (delta: 44.8MB). Peak memory consumption was 92.2MB. Max. memory is 16.1GB. [2023-11-29 02:41:46,176 INFO L158 Benchmark]: CDTParser took 0.23ms. Allocated memory is still 151.0MB. Free memory is still 122.4MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-29 02:41:46,177 INFO L158 Benchmark]: CACSL2BoogieTranslator took 387.85ms. Allocated memory is still 151.0MB. Free memory was 106.7MB in the beginning and 90.4MB in the end (delta: 16.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2023-11-29 02:41:46,177 INFO L158 Benchmark]: Boogie Procedure Inliner took 45.75ms. Allocated memory is still 151.0MB. Free memory was 90.2MB in the beginning and 88.3MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-29 02:41:46,178 INFO L158 Benchmark]: Boogie Preprocessor took 51.28ms. Allocated memory is still 151.0MB. Free memory was 88.3MB in the beginning and 86.5MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-29 02:41:46,178 INFO L158 Benchmark]: RCFGBuilder took 355.54ms. Allocated memory is still 151.0MB. Free memory was 86.2MB in the beginning and 73.1MB in the end (delta: 13.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-29 02:41:46,179 INFO L158 Benchmark]: TraceAbstraction took 10103.95ms. Allocated memory was 151.0MB in the beginning and 197.1MB in the end (delta: 46.1MB). Free memory was 72.3MB in the beginning and 67.4MB in the end (delta: 4.9MB). Peak memory consumption was 52.3MB. Max. memory is 16.1GB. [2023-11-29 02:41:46,179 INFO L158 Benchmark]: Witness Printer took 130.08ms. Allocated memory is still 197.1MB. Free memory was 67.4MB in the beginning and 62.2MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-29 02:41:46,182 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23ms. Allocated memory is still 151.0MB. Free memory is still 122.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 387.85ms. Allocated memory is still 151.0MB. Free memory was 106.7MB in the beginning and 90.4MB in the end (delta: 16.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 45.75ms. Allocated memory is still 151.0MB. Free memory was 90.2MB in the beginning and 88.3MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 51.28ms. Allocated memory is still 151.0MB. Free memory was 88.3MB in the beginning and 86.5MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 355.54ms. Allocated memory is still 151.0MB. Free memory was 86.2MB in the beginning and 73.1MB in the end (delta: 13.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 10103.95ms. Allocated memory was 151.0MB in the beginning and 197.1MB in the end (delta: 46.1MB). Free memory was 72.3MB in the beginning and 67.4MB in the end (delta: 4.9MB). Peak memory consumption was 52.3MB. Max. memory is 16.1GB. * Witness Printer took 130.08ms. Allocated memory is still 197.1MB. Free memory was 67.4MB in the beginning and 62.2MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~array_size~0 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~array_size~0 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~array_size~0 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~array_size~0 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~array_size~0 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~array_size~0 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~array_size~0 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~array_size~0 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~array_size~0 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~array_size~0 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~array_size~0 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~array_size~0 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~array_size~0 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~array_size~0 * 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: 562]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 562]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 551]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 551]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 552]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 552]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 553]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 553]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 553]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 553]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 551]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 551]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 550]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 550]: 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, 14 error locations. Started 1 CEGAR loops. OverallTime: 10.0s, OverallIterations: 22, TraceHistogramMax: 5, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 2.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.5s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 884 SdHoareTripleChecker+Valid, 1.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 884 mSDsluCounter, 1892 SdHoareTripleChecker+Invalid, 1.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1326 mSDsCounter, 48 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1435 IncrementalHoareTripleChecker+Invalid, 1483 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 48 mSolverCounterUnsat, 566 mSDtfsCounter, 1435 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 589 GetRequests, 382 SyntacticMatches, 16 SemanticMatches, 191 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 556 ImplicationChecksByTransitivity, 1.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=158occurred in iteration=20, InterpolantAutomatonStates: 143, 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, 22 MinimizatonAttempts, 201 StatesRemovedByMinimization, 14 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 24 NumberOfFragments, 174 HoareAnnotationTreeSize, 3 FomulaSimplifications, 1788 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 3 FomulaSimplificationsInter, 240 FormulaSimplificationTreeSizeReductionInter, 0.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 3.2s InterpolantComputationTime, 708 NumberOfCodeBlocks, 629 NumberOfCodeBlocksAsserted, 33 NumberOfCheckSat, 833 ConstructedInterpolants, 0 QuantifiedInterpolants, 2300 SizeOfPredicates, 39 NumberOfNonLiveVariables, 741 ConjunctsInSsa, 64 ConjunctsInUnsatCore, 39 InterpolantComputations, 16 PerfectInterpolantSequences, 380/548 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 14 specifications checked. All of them hold - InvariantResult [Line: 551]: Loop Invariant Derived loop invariant: (((((0 <= (i + 2147483649)) && (n == 2)) && (pass == 1)) || (((((2 + pass) <= n) && (0 <= (i + 2147483649))) && (n <= 2147483647)) && (pass == 1))) || ((((0 <= (i + 2147483649)) && (2 <= pass)) && ((pass + 1) <= n)) && (n <= 2147483647))) - InvariantResult [Line: 550]: Loop Invariant Derived loop invariant: (((((((2 + pass) <= n) && (n <= 2147483647)) && (pass == 1)) || (((0 <= (i + 2147483649)) && (2 <= pass)) && (n <= 2))) || (((0 <= (i + 2147483649)) && (2 <= pass)) && (n <= 2147483647))) || ((n <= 2) && (pass == 1))) - InvariantResult [Line: 562]: Loop Invariant Derived loop invariant: ((((((array_size <= 2147483647) && (i == 0)) && (1 <= array_size)) || (((array_size <= 2147483647) && (i == 1)) && (1 <= array_size))) || (((array_size <= 2147483647) && (2 <= i)) && (3 <= array_size))) || (((array_size <= 2147483647) && (2 == i)) && (1 <= array_size))) RESULT: Ultimate proved your program to be correct! [2023-11-29 02:41:46,202 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daf046c9-e4e5-4b39-a11a-e789d555d2cd/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE