./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/recursive/Addition01-2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30c4f446-39c7-417b-9fa9-b434896c35e9/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30c4f446-39c7-417b-9fa9-b434896c35e9/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_30c4f446-39c7-417b-9fa9-b434896c35e9/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30c4f446-39c7-417b-9fa9-b434896c35e9/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerReach.xml -i ../../sv-benchmarks/c/recursive/Addition01-2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30c4f446-39c7-417b-9fa9-b434896c35e9/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30c4f446-39c7-417b-9fa9-b434896c35e9/bin/uautomizer-verify-BQ2R08f2Ya --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 4af9e26294eb81d37b6ccb692d0b40e4bed5b0d6d3dd72d6af1a80634692c297 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-29 00:23:40,546 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-29 00:23:40,604 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30c4f446-39c7-417b-9fa9-b434896c35e9/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-11-29 00:23:40,608 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-29 00:23:40,609 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-29 00:23:40,629 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-29 00:23:40,630 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-29 00:23:40,630 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-29 00:23:40,631 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-29 00:23:40,632 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-29 00:23:40,632 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-29 00:23:40,633 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-29 00:23:40,634 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-29 00:23:40,634 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-29 00:23:40,635 INFO L153 SettingsManager]: * Use SBE=true [2023-11-29 00:23:40,635 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-29 00:23:40,636 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-29 00:23:40,636 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-29 00:23:40,637 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-29 00:23:40,637 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-29 00:23:40,637 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-29 00:23:40,638 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-29 00:23:40,638 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-29 00:23:40,639 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-29 00:23:40,639 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-29 00:23:40,639 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-29 00:23:40,640 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-29 00:23:40,640 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-29 00:23:40,640 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-29 00:23:40,641 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-29 00:23:40,641 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-29 00:23:40,641 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-29 00:23:40,642 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-29 00:23:40,642 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 00:23:40,642 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-29 00:23:40,642 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-29 00:23:40,643 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-29 00:23:40,643 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-29 00:23:40,643 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-29 00:23:40,643 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-29 00:23:40,643 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-29 00:23:40,644 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-29 00:23:40,644 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-29 00:23:40,644 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-29 00:23:40,644 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_30c4f446-39c7-417b-9fa9-b434896c35e9/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30c4f446-39c7-417b-9fa9-b434896c35e9/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4af9e26294eb81d37b6ccb692d0b40e4bed5b0d6d3dd72d6af1a80634692c297 [2023-11-29 00:23:40,840 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-29 00:23:40,870 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-29 00:23:40,873 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-29 00:23:40,874 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-29 00:23:40,874 INFO L274 PluginConnector]: CDTParser initialized [2023-11-29 00:23:40,875 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30c4f446-39c7-417b-9fa9-b434896c35e9/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/recursive/Addition01-2.c [2023-11-29 00:23:43,662 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-29 00:23:43,822 INFO L384 CDTParser]: Found 1 translation units. [2023-11-29 00:23:43,822 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30c4f446-39c7-417b-9fa9-b434896c35e9/sv-benchmarks/c/recursive/Addition01-2.c [2023-11-29 00:23:43,829 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30c4f446-39c7-417b-9fa9-b434896c35e9/bin/uautomizer-verify-BQ2R08f2Ya/data/50df2b3bf/29f30cacd5294b30850e6fcba8e8f37b/FLAGb24c9aac2 [2023-11-29 00:23:43,844 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30c4f446-39c7-417b-9fa9-b434896c35e9/bin/uautomizer-verify-BQ2R08f2Ya/data/50df2b3bf/29f30cacd5294b30850e6fcba8e8f37b [2023-11-29 00:23:43,846 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-29 00:23:43,848 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-29 00:23:43,849 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-29 00:23:43,849 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-29 00:23:43,854 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-29 00:23:43,855 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 12:23:43" (1/1) ... [2023-11-29 00:23:43,856 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4e429216 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:23:43, skipping insertion in model container [2023-11-29 00:23:43,856 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 12:23:43" (1/1) ... [2023-11-29 00:23:43,877 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-29 00:23:44,016 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 00:23:44,025 INFO L202 MainTranslator]: Completed pre-run [2023-11-29 00:23:44,038 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 00:23:44,051 INFO L206 MainTranslator]: Completed translation [2023-11-29 00:23:44,051 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:23:44 WrapperNode [2023-11-29 00:23:44,051 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-29 00:23:44,052 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-29 00:23:44,052 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-29 00:23:44,052 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-29 00:23:44,058 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:23:44" (1/1) ... [2023-11-29 00:23:44,063 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:23:44" (1/1) ... [2023-11-29 00:23:44,077 INFO L138 Inliner]: procedures = 13, calls = 11, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 36 [2023-11-29 00:23:44,077 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-29 00:23:44,078 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-29 00:23:44,078 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-29 00:23:44,078 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-29 00:23:44,089 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:23:44" (1/1) ... [2023-11-29 00:23:44,089 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:23:44" (1/1) ... [2023-11-29 00:23:44,091 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:23:44" (1/1) ... [2023-11-29 00:23:44,101 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2023-11-29 00:23:44,101 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:23:44" (1/1) ... [2023-11-29 00:23:44,101 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:23:44" (1/1) ... [2023-11-29 00:23:44,105 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:23:44" (1/1) ... [2023-11-29 00:23:44,107 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:23:44" (1/1) ... [2023-11-29 00:23:44,108 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:23:44" (1/1) ... [2023-11-29 00:23:44,109 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:23:44" (1/1) ... [2023-11-29 00:23:44,110 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-29 00:23:44,111 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-29 00:23:44,111 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-29 00:23:44,112 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-29 00:23:44,112 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:23:44" (1/1) ... [2023-11-29 00:23:44,119 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 00:23:44,130 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30c4f446-39c7-417b-9fa9-b434896c35e9/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:23:44,142 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30c4f446-39c7-417b-9fa9-b434896c35e9/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-29 00:23:44,144 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30c4f446-39c7-417b-9fa9-b434896c35e9/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-29 00:23:44,171 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-29 00:23:44,171 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-29 00:23:44,171 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-29 00:23:44,171 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-29 00:23:44,172 INFO L130 BoogieDeclarations]: Found specification of procedure addition [2023-11-29 00:23:44,172 INFO L138 BoogieDeclarations]: Found implementation of procedure addition [2023-11-29 00:23:44,228 INFO L241 CfgBuilder]: Building ICFG [2023-11-29 00:23:44,229 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-29 00:23:44,369 INFO L282 CfgBuilder]: Performing block encoding [2023-11-29 00:23:44,392 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-29 00:23:44,392 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-29 00:23:44,392 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 12:23:44 BoogieIcfgContainer [2023-11-29 00:23:44,392 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-29 00:23:44,396 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-29 00:23:44,396 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-29 00:23:44,417 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-29 00:23:44,417 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 12:23:43" (1/3) ... [2023-11-29 00:23:44,425 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@393f4191 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 12:23:44, skipping insertion in model container [2023-11-29 00:23:44,425 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:23:44" (2/3) ... [2023-11-29 00:23:44,425 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@393f4191 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 12:23:44, skipping insertion in model container [2023-11-29 00:23:44,426 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 12:23:44" (3/3) ... [2023-11-29 00:23:44,427 INFO L112 eAbstractionObserver]: Analyzing ICFG Addition01-2.c [2023-11-29 00:23:44,442 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-29 00:23:44,442 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 10 error locations. [2023-11-29 00:23:44,480 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-29 00:23:44,486 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;@5062824b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-29 00:23:44,486 INFO L358 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2023-11-29 00:23:44,489 INFO L276 IsEmpty]: Start isEmpty. Operand has 38 states, 23 states have (on average 1.6956521739130435) internal successors, (39), 33 states have internal predecessors, (39), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-29 00:23:44,494 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-29 00:23:44,494 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:23:44,495 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:23:44,496 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2023-11-29 00:23:44,500 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:23:44,500 INFO L85 PathProgramCache]: Analyzing trace with hash 1442933594, now seen corresponding path program 1 times [2023-11-29 00:23:44,507 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:23:44,507 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1105402794] [2023-11-29 00:23:44,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:23:44,507 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:23:44,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:23:44,691 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 00:23:44,692 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:23:44,692 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1105402794] [2023-11-29 00:23:44,693 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1105402794] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 00:23:44,693 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 00:23:44,693 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 00:23:44,694 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1118479281] [2023-11-29 00:23:44,695 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 00:23:44,698 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 00:23:44,698 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:23:44,722 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 00:23:44,722 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-29 00:23:44,724 INFO L87 Difference]: Start difference. First operand has 38 states, 23 states have (on average 1.6956521739130435) internal successors, (39), 33 states have internal predecessors, (39), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 5 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:23:44,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:23:44,844 INFO L93 Difference]: Finished difference Result 67 states and 77 transitions. [2023-11-29 00:23:44,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 00:23:44,846 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 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 00:23:44,846 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:23:44,852 INFO L225 Difference]: With dead ends: 67 [2023-11-29 00:23:44,852 INFO L226 Difference]: Without dead ends: 59 [2023-11-29 00:23:44,854 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-11-29 00:23:44,857 INFO L413 NwaCegarLoop]: 27 mSDtfsCounter, 52 mSDsluCounter, 76 mSDsCounter, 0 mSdLazyCounter, 64 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 103 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 64 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 00:23:44,857 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [53 Valid, 103 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 64 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 00:23:44,870 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2023-11-29 00:23:44,886 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 53. [2023-11-29 00:23:44,887 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53 states, 36 states have (on average 1.5833333333333333) internal successors, (57), 45 states have internal predecessors, (57), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2023-11-29 00:23:44,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 67 transitions. [2023-11-29 00:23:44,890 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 67 transitions. Word has length 8 [2023-11-29 00:23:44,890 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:23:44,891 INFO L495 AbstractCegarLoop]: Abstraction has 53 states and 67 transitions. [2023-11-29 00:23:44,891 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:23:44,891 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 67 transitions. [2023-11-29 00:23:44,892 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-11-29 00:23:44,892 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:23:44,892 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:23:44,892 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-29 00:23:44,893 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting additionErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2023-11-29 00:23:44,893 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:23:44,893 INFO L85 PathProgramCache]: Analyzing trace with hash 1781268526, now seen corresponding path program 1 times [2023-11-29 00:23:44,893 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:23:44,894 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [294064533] [2023-11-29 00:23:44,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:23:44,894 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:23:44,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:23:44,964 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 00:23:44,964 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:23:44,965 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [294064533] [2023-11-29 00:23:44,965 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [294064533] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 00:23:44,965 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 00:23:44,965 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 00:23:44,965 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1567956513] [2023-11-29 00:23:44,965 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 00:23:44,966 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 00:23:44,967 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:23:44,967 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 00:23:44,967 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-29 00:23:44,968 INFO L87 Difference]: Start difference. First operand 53 states and 67 transitions. Second operand has 5 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:23:45,042 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:23:45,043 INFO L93 Difference]: Finished difference Result 97 states and 125 transitions. [2023-11-29 00:23:45,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 00:23:45,043 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 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 00:23:45,044 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:23:45,046 INFO L225 Difference]: With dead ends: 97 [2023-11-29 00:23:45,046 INFO L226 Difference]: Without dead ends: 95 [2023-11-29 00:23:45,046 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-11-29 00:23:45,048 INFO L413 NwaCegarLoop]: 25 mSDtfsCounter, 48 mSDsluCounter, 72 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 97 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 00:23:45,049 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [49 Valid, 97 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 00:23:45,050 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states. [2023-11-29 00:23:45,062 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 89. [2023-11-29 00:23:45,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 89 states, 66 states have (on average 1.5606060606060606) internal successors, (103), 75 states have internal predecessors, (103), 9 states have call successors, (9), 4 states have call predecessors, (9), 4 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2023-11-29 00:23:45,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 121 transitions. [2023-11-29 00:23:45,066 INFO L78 Accepts]: Start accepts. Automaton has 89 states and 121 transitions. Word has length 9 [2023-11-29 00:23:45,066 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:23:45,067 INFO L495 AbstractCegarLoop]: Abstraction has 89 states and 121 transitions. [2023-11-29 00:23:45,067 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:23:45,067 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 121 transitions. [2023-11-29 00:23:45,068 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-11-29 00:23:45,068 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:23:45,068 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:23:45,068 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-29 00:23:45,069 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2023-11-29 00:23:45,069 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:23:45,069 INFO L85 PathProgramCache]: Analyzing trace with hash -615375333, now seen corresponding path program 1 times [2023-11-29 00:23:45,070 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:23:45,070 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1018426421] [2023-11-29 00:23:45,070 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:23:45,070 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:23:45,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:23:45,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-29 00:23:45,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:23:45,132 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 00:23:45,133 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:23:45,133 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1018426421] [2023-11-29 00:23:45,133 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1018426421] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 00:23:45,133 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 00:23:45,133 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 00:23:45,134 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [444622365] [2023-11-29 00:23:45,134 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 00:23:45,134 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 00:23:45,134 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:23:45,135 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 00:23:45,136 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 00:23:45,136 INFO L87 Difference]: Start difference. First operand 89 states and 121 transitions. Second operand has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-29 00:23:45,159 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:23:45,160 INFO L93 Difference]: Finished difference Result 89 states and 121 transitions. [2023-11-29 00:23:45,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 00:23:45,160 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 10 [2023-11-29 00:23:45,161 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:23:45,162 INFO L225 Difference]: With dead ends: 89 [2023-11-29 00:23:45,162 INFO L226 Difference]: Without dead ends: 88 [2023-11-29 00:23:45,163 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-29 00:23:45,164 INFO L413 NwaCegarLoop]: 35 mSDtfsCounter, 6 mSDsluCounter, 62 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 97 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 00:23:45,165 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 97 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 00:23:45,166 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states. [2023-11-29 00:23:45,176 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 88. [2023-11-29 00:23:45,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 88 states, 66 states have (on average 1.5454545454545454) internal successors, (102), 74 states have internal predecessors, (102), 9 states have call successors, (9), 4 states have call predecessors, (9), 4 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2023-11-29 00:23:45,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 120 transitions. [2023-11-29 00:23:45,179 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 120 transitions. Word has length 10 [2023-11-29 00:23:45,180 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:23:45,180 INFO L495 AbstractCegarLoop]: Abstraction has 88 states and 120 transitions. [2023-11-29 00:23:45,180 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-29 00:23:45,180 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 120 transitions. [2023-11-29 00:23:45,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-11-29 00:23:45,181 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:23:45,181 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:23:45,181 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-29 00:23:45,182 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting additionErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2023-11-29 00:23:45,182 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:23:45,182 INFO L85 PathProgramCache]: Analyzing trace with hash -615250468, now seen corresponding path program 1 times [2023-11-29 00:23:45,183 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:23:45,183 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [728881193] [2023-11-29 00:23:45,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:23:45,183 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:23:45,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:23:45,214 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 00:23:45,214 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:23:45,214 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [728881193] [2023-11-29 00:23:45,215 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [728881193] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 00:23:45,215 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 00:23:45,215 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 00:23:45,215 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1969975717] [2023-11-29 00:23:45,216 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 00:23:45,216 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 00:23:45,216 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:23:45,217 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 00:23:45,217 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 00:23:45,217 INFO L87 Difference]: Start difference. First operand 88 states and 120 transitions. Second operand has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:23:45,242 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:23:45,243 INFO L93 Difference]: Finished difference Result 96 states and 133 transitions. [2023-11-29 00:23:45,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 00:23:45,243 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 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 00:23:45,244 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:23:45,246 INFO L225 Difference]: With dead ends: 96 [2023-11-29 00:23:45,247 INFO L226 Difference]: Without dead ends: 95 [2023-11-29 00:23:45,247 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 00:23:45,249 INFO L413 NwaCegarLoop]: 37 mSDtfsCounter, 7 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 55 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 00:23:45,249 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 55 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 00:23:45,250 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states. [2023-11-29 00:23:45,262 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 87. [2023-11-29 00:23:45,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 87 states, 66 states have (on average 1.4848484848484849) internal successors, (98), 73 states have internal predecessors, (98), 9 states have call successors, (9), 4 states have call predecessors, (9), 4 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2023-11-29 00:23:45,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 116 transitions. [2023-11-29 00:23:45,265 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 116 transitions. Word has length 10 [2023-11-29 00:23:45,266 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:23:45,266 INFO L495 AbstractCegarLoop]: Abstraction has 87 states and 116 transitions. [2023-11-29 00:23:45,266 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:23:45,266 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 116 transitions. [2023-11-29 00:23:45,267 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-11-29 00:23:45,267 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:23:45,267 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:23:45,267 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-29 00:23:45,268 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2023-11-29 00:23:45,268 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:23:45,268 INFO L85 PathProgramCache]: Analyzing trace with hash -1896766091, now seen corresponding path program 1 times [2023-11-29 00:23:45,268 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:23:45,269 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1231777782] [2023-11-29 00:23:45,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:23:45,269 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:23:45,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:23:45,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-29 00:23:45,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:23:45,318 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 00:23:45,319 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:23:45,319 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1231777782] [2023-11-29 00:23:45,319 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1231777782] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 00:23:45,319 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 00:23:45,319 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 00:23:45,320 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1674651008] [2023-11-29 00:23:45,320 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 00:23:45,320 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 00:23:45,320 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:23:45,321 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 00:23:45,321 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 00:23:45,322 INFO L87 Difference]: Start difference. First operand 87 states and 116 transitions. Second operand has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-29 00:23:45,341 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:23:45,342 INFO L93 Difference]: Finished difference Result 87 states and 116 transitions. [2023-11-29 00:23:45,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 00:23:45,342 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 11 [2023-11-29 00:23:45,343 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:23:45,343 INFO L225 Difference]: With dead ends: 87 [2023-11-29 00:23:45,344 INFO L226 Difference]: Without dead ends: 67 [2023-11-29 00:23:45,344 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-29 00:23:45,346 INFO L413 NwaCegarLoop]: 34 mSDtfsCounter, 3 mSDsluCounter, 60 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 94 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 00:23:45,346 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 94 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 00:23:45,347 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2023-11-29 00:23:45,352 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 53. [2023-11-29 00:23:45,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53 states, 41 states have (on average 1.4146341463414633) internal successors, (58), 48 states have internal predecessors, (58), 5 states have call successors, (5), 4 states have call predecessors, (5), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:23:45,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 63 transitions. [2023-11-29 00:23:45,354 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 63 transitions. Word has length 11 [2023-11-29 00:23:45,354 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:23:45,354 INFO L495 AbstractCegarLoop]: Abstraction has 53 states and 63 transitions. [2023-11-29 00:23:45,354 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-29 00:23:45,354 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 63 transitions. [2023-11-29 00:23:45,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-11-29 00:23:45,355 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:23:45,355 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:23:45,355 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-29 00:23:45,356 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting additionErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2023-11-29 00:23:45,356 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:23:45,356 INFO L85 PathProgramCache]: Analyzing trace with hash -1882367109, now seen corresponding path program 1 times [2023-11-29 00:23:45,356 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:23:45,357 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1000835363] [2023-11-29 00:23:45,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:23:45,357 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:23:45,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:23:45,413 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 00:23:45,413 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:23:45,413 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1000835363] [2023-11-29 00:23:45,413 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1000835363] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 00:23:45,414 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 00:23:45,414 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 00:23:45,414 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [14974251] [2023-11-29 00:23:45,414 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 00:23:45,414 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 00:23:45,415 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:23:45,415 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 00:23:45,415 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-29 00:23:45,416 INFO L87 Difference]: Start difference. First operand 53 states and 63 transitions. Second operand has 5 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:23:45,459 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:23:45,459 INFO L93 Difference]: Finished difference Result 78 states and 89 transitions. [2023-11-29 00:23:45,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 00:23:45,460 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 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 00:23:45,460 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:23:45,461 INFO L225 Difference]: With dead ends: 78 [2023-11-29 00:23:45,461 INFO L226 Difference]: Without dead ends: 44 [2023-11-29 00:23:45,462 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-11-29 00:23:45,463 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 22 mSDsluCounter, 41 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 59 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 00:23:45,464 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 59 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 00:23:45,464 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2023-11-29 00:23:45,468 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 40. [2023-11-29 00:23:45,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40 states, 29 states have (on average 1.3793103448275863) internal successors, (40), 36 states have internal predecessors, (40), 4 states have call successors, (4), 3 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:23:45,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 44 transitions. [2023-11-29 00:23:45,470 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 44 transitions. Word has length 11 [2023-11-29 00:23:45,470 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:23:45,470 INFO L495 AbstractCegarLoop]: Abstraction has 40 states and 44 transitions. [2023-11-29 00:23:45,470 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:23:45,471 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 44 transitions. [2023-11-29 00:23:45,471 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-11-29 00:23:45,471 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:23:45,471 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:23:45,472 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-29 00:23:45,472 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting additionErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2023-11-29 00:23:45,472 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:23:45,473 INFO L85 PathProgramCache]: Analyzing trace with hash -1892895248, now seen corresponding path program 1 times [2023-11-29 00:23:45,473 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:23:45,473 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [304457277] [2023-11-29 00:23:45,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:23:45,473 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:23:45,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:23:45,515 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 00:23:45,515 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:23:45,516 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [304457277] [2023-11-29 00:23:45,516 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [304457277] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 00:23:45,516 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 00:23:45,516 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 00:23:45,516 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1099825247] [2023-11-29 00:23:45,516 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 00:23:45,517 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 00:23:45,517 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:23:45,517 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 00:23:45,518 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-29 00:23:45,518 INFO L87 Difference]: Start difference. First operand 40 states and 44 transitions. Second operand has 5 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:23:45,570 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:23:45,570 INFO L93 Difference]: Finished difference Result 48 states and 51 transitions. [2023-11-29 00:23:45,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 00:23:45,570 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 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 00:23:45,571 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:23:45,571 INFO L225 Difference]: With dead ends: 48 [2023-11-29 00:23:45,571 INFO L226 Difference]: Without dead ends: 46 [2023-11-29 00:23:45,571 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-11-29 00:23:45,573 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 34 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 47 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 00:23:45,573 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 47 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 00:23:45,574 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2023-11-29 00:23:45,578 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 39. [2023-11-29 00:23:45,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39 states, 29 states have (on average 1.3103448275862069) internal successors, (38), 35 states have internal predecessors, (38), 4 states have call successors, (4), 3 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:23:45,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 42 transitions. [2023-11-29 00:23:45,579 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 42 transitions. Word has length 11 [2023-11-29 00:23:45,579 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:23:45,579 INFO L495 AbstractCegarLoop]: Abstraction has 39 states and 42 transitions. [2023-11-29 00:23:45,580 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:23:45,580 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 42 transitions. [2023-11-29 00:23:45,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2023-11-29 00:23:45,580 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:23:45,581 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:23:45,581 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-29 00:23:45,581 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting additionErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2023-11-29 00:23:45,581 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:23:45,582 INFO L85 PathProgramCache]: Analyzing trace with hash -2031565807, now seen corresponding path program 1 times [2023-11-29 00:23:45,582 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:23:45,582 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [939056308] [2023-11-29 00:23:45,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:23:45,582 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:23:45,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:23:45,650 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 00:23:45,650 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:23:45,650 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [939056308] [2023-11-29 00:23:45,651 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [939056308] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 00:23:45,651 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [321509692] [2023-11-29 00:23:45,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:23:45,651 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:23:45,651 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30c4f446-39c7-417b-9fa9-b434896c35e9/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:23:45,654 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30c4f446-39c7-417b-9fa9-b434896c35e9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 00:23:45,661 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30c4f446-39c7-417b-9fa9-b434896c35e9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-29 00:23:45,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:23:45,702 INFO L262 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-29 00:23:45,707 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:23:45,758 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 00:23:45,758 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 00:23:45,826 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 00:23:45,827 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [321509692] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 00:23:45,827 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-29 00:23:45,827 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 11 [2023-11-29 00:23:45,828 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [937582992] [2023-11-29 00:23:45,828 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-29 00:23:45,828 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-29 00:23:45,828 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:23:45,829 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-29 00:23:45,829 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2023-11-29 00:23:45,829 INFO L87 Difference]: Start difference. First operand 39 states and 42 transitions. Second operand has 12 states, 11 states have (on average 2.6363636363636362) internal successors, (29), 8 states have internal predecessors, (29), 4 states have call successors, (4), 4 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:23:45,993 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:23:45,993 INFO L93 Difference]: Finished difference Result 146 states and 165 transitions. [2023-11-29 00:23:45,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-11-29 00:23:45,994 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.6363636363636362) internal successors, (29), 8 states have internal predecessors, (29), 4 states have call successors, (4), 4 states have call predecessors, (4), 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 00:23:45,994 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:23:45,995 INFO L225 Difference]: With dead ends: 146 [2023-11-29 00:23:45,995 INFO L226 Difference]: Without dead ends: 144 [2023-11-29 00:23:45,995 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=104, Invalid=238, Unknown=0, NotChecked=0, Total=342 [2023-11-29 00:23:45,996 INFO L413 NwaCegarLoop]: 23 mSDtfsCounter, 166 mSDsluCounter, 116 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 166 SdHoareTripleChecker+Valid, 139 SdHoareTripleChecker+Invalid, 109 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 00:23:45,997 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [166 Valid, 139 Invalid, 109 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 00:23:45,998 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144 states. [2023-11-29 00:23:46,010 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144 to 108. [2023-11-29 00:23:46,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 108 states, 90 states have (on average 1.3) internal successors, (117), 97 states have internal predecessors, (117), 12 states have call successors, (12), 10 states have call predecessors, (12), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:23:46,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 129 transitions. [2023-11-29 00:23:46,012 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 129 transitions. Word has length 17 [2023-11-29 00:23:46,013 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:23:46,013 INFO L495 AbstractCegarLoop]: Abstraction has 108 states and 129 transitions. [2023-11-29 00:23:46,013 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 2.6363636363636362) internal successors, (29), 8 states have internal predecessors, (29), 4 states have call successors, (4), 4 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:23:46,013 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 129 transitions. [2023-11-29 00:23:46,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2023-11-29 00:23:46,014 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:23:46,014 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:23:46,021 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30c4f446-39c7-417b-9fa9-b434896c35e9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-29 00:23:46,219 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30c4f446-39c7-417b-9fa9-b434896c35e9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:23:46,220 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting additionErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2023-11-29 00:23:46,220 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:23:46,220 INFO L85 PathProgramCache]: Analyzing trace with hash 1885909662, now seen corresponding path program 1 times [2023-11-29 00:23:46,220 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:23:46,221 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [664625901] [2023-11-29 00:23:46,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:23:46,221 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:23:46,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:23:46,266 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 00:23:46,266 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:23:46,267 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [664625901] [2023-11-29 00:23:46,267 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [664625901] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 00:23:46,267 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 00:23:46,267 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 00:23:46,267 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2054948460] [2023-11-29 00:23:46,267 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 00:23:46,268 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 00:23:46,268 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:23:46,268 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 00:23:46,268 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-29 00:23:46,269 INFO L87 Difference]: Start difference. First operand 108 states and 129 transitions. Second operand has 5 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:23:46,301 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:23:46,301 INFO L93 Difference]: Finished difference Result 109 states and 129 transitions. [2023-11-29 00:23:46,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 00:23:46,302 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2023-11-29 00:23:46,302 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:23:46,302 INFO L225 Difference]: With dead ends: 109 [2023-11-29 00:23:46,302 INFO L226 Difference]: Without dead ends: 42 [2023-11-29 00:23:46,303 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2023-11-29 00:23:46,304 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 10 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 23 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 00:23:46,305 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 23 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 00:23:46,305 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2023-11-29 00:23:46,310 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 42. [2023-11-29 00:23:46,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42 states, 36 states have (on average 1.0277777777777777) internal successors, (37), 36 states have internal predecessors, (37), 5 states have call successors, (5), 5 states have call predecessors, (5), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:23:46,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 42 transitions. [2023-11-29 00:23:46,311 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 42 transitions. Word has length 19 [2023-11-29 00:23:46,311 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:23:46,312 INFO L495 AbstractCegarLoop]: Abstraction has 42 states and 42 transitions. [2023-11-29 00:23:46,312 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:23:46,312 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 42 transitions. [2023-11-29 00:23:46,313 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2023-11-29 00:23:46,313 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:23:46,313 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 4, 4, 4, 4, 1, 1, 1, 1, 1] [2023-11-29 00:23:46,313 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-29 00:23:46,314 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting additionErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2023-11-29 00:23:46,314 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:23:46,314 INFO L85 PathProgramCache]: Analyzing trace with hash 2056232378, now seen corresponding path program 2 times [2023-11-29 00:23:46,314 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:23:46,315 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1920167357] [2023-11-29 00:23:46,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:23:46,315 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:23:46,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:23:46,513 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 0 proven. 68 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 00:23:46,513 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:23:46,514 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1920167357] [2023-11-29 00:23:46,514 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1920167357] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 00:23:46,514 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [953892792] [2023-11-29 00:23:46,514 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 00:23:46,514 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:23:46,514 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30c4f446-39c7-417b-9fa9-b434896c35e9/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:23:46,515 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30c4f446-39c7-417b-9fa9-b434896c35e9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 00:23:46,520 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30c4f446-39c7-417b-9fa9-b434896c35e9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-29 00:23:46,572 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 00:23:46,572 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 00:23:46,573 INFO L262 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 12 conjunts are in the unsatisfiable core [2023-11-29 00:23:46,576 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:23:46,641 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 0 proven. 68 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 00:23:46,641 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 00:23:46,850 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 0 proven. 68 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 00:23:46,850 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [953892792] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 00:23:46,851 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-29 00:23:46,851 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 23 [2023-11-29 00:23:46,851 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [329358055] [2023-11-29 00:23:46,851 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-29 00:23:46,852 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2023-11-29 00:23:46,852 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:23:46,852 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2023-11-29 00:23:46,853 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=136, Invalid=416, Unknown=0, NotChecked=0, Total=552 [2023-11-29 00:23:46,853 INFO L87 Difference]: Start difference. First operand 42 states and 42 transitions. Second operand has 24 states, 23 states have (on average 3.0869565217391304) internal successors, (71), 14 states have internal predecessors, (71), 10 states have call successors, (10), 10 states have call predecessors, (10), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:23:47,081 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:23:47,081 INFO L93 Difference]: Finished difference Result 94 states and 99 transitions. [2023-11-29 00:23:47,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-11-29 00:23:47,082 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 23 states have (on average 3.0869565217391304) internal successors, (71), 14 states have internal predecessors, (71), 10 states have call successors, (10), 10 states have call predecessors, (10), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 41 [2023-11-29 00:23:47,082 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:23:47,083 INFO L225 Difference]: With dead ends: 94 [2023-11-29 00:23:47,083 INFO L226 Difference]: Without dead ends: 93 [2023-11-29 00:23:47,084 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 70 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 180 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=311, Invalid=811, Unknown=0, NotChecked=0, Total=1122 [2023-11-29 00:23:47,085 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 120 mSDsluCounter, 113 mSDsCounter, 0 mSdLazyCounter, 94 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 120 SdHoareTripleChecker+Valid, 122 SdHoareTripleChecker+Invalid, 96 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 94 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 00:23:47,085 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [120 Valid, 122 Invalid, 96 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 94 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 00:23:47,086 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2023-11-29 00:23:47,096 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 90. [2023-11-29 00:23:47,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 90 states, 78 states have (on average 1.0128205128205128) internal successors, (79), 78 states have internal predecessors, (79), 11 states have call successors, (11), 11 states have call predecessors, (11), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:23:47,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 90 transitions. [2023-11-29 00:23:47,097 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 90 transitions. Word has length 41 [2023-11-29 00:23:47,098 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:23:47,098 INFO L495 AbstractCegarLoop]: Abstraction has 90 states and 90 transitions. [2023-11-29 00:23:47,098 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 23 states have (on average 3.0869565217391304) internal successors, (71), 14 states have internal predecessors, (71), 10 states have call successors, (10), 10 states have call predecessors, (10), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:23:47,098 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 90 transitions. [2023-11-29 00:23:47,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2023-11-29 00:23:47,101 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:23:47,102 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 11, 10, 10, 10, 10, 1, 1, 1, 1, 1] [2023-11-29 00:23:47,107 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30c4f446-39c7-417b-9fa9-b434896c35e9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-11-29 00:23:47,304 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30c4f446-39c7-417b-9fa9-b434896c35e9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2023-11-29 00:23:47,304 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting additionErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2023-11-29 00:23:47,305 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:23:47,305 INFO L85 PathProgramCache]: Analyzing trace with hash -1234841588, now seen corresponding path program 3 times [2023-11-29 00:23:47,305 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:23:47,305 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1170645662] [2023-11-29 00:23:47,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:23:47,305 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:23:47,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:23:47,914 INFO L134 CoverageAnalysis]: Checked inductivity of 410 backedges. 0 proven. 410 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 00:23:47,914 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:23:47,915 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1170645662] [2023-11-29 00:23:47,915 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1170645662] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 00:23:47,915 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [328471411] [2023-11-29 00:23:47,915 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-29 00:23:47,915 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:23:47,915 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30c4f446-39c7-417b-9fa9-b434896c35e9/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:23:47,916 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30c4f446-39c7-417b-9fa9-b434896c35e9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 00:23:47,919 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30c4f446-39c7-417b-9fa9-b434896c35e9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-29 00:23:47,991 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2023-11-29 00:23:47,991 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 00:23:47,993 INFO L262 TraceCheckSpWp]: Trace formula consists of 203 conjuncts, 24 conjunts are in the unsatisfiable core [2023-11-29 00:23:47,997 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:23:48,149 INFO L134 CoverageAnalysis]: Checked inductivity of 410 backedges. 0 proven. 410 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 00:23:48,150 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 00:23:48,816 INFO L134 CoverageAnalysis]: Checked inductivity of 410 backedges. 0 proven. 410 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 00:23:48,816 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [328471411] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 00:23:48,816 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-29 00:23:48,816 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 24, 24] total 47 [2023-11-29 00:23:48,817 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [386105647] [2023-11-29 00:23:48,817 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-29 00:23:48,817 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 48 states [2023-11-29 00:23:48,818 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:23:48,819 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2023-11-29 00:23:48,820 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=556, Invalid=1700, Unknown=0, NotChecked=0, Total=2256 [2023-11-29 00:23:48,821 INFO L87 Difference]: Start difference. First operand 90 states and 90 transitions. Second operand has 48 states, 47 states have (on average 3.297872340425532) internal successors, (155), 26 states have internal predecessors, (155), 22 states have call successors, (22), 22 states have call predecessors, (22), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:23:49,446 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:23:49,446 INFO L93 Difference]: Finished difference Result 190 states and 201 transitions. [2023-11-29 00:23:49,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2023-11-29 00:23:49,450 INFO L78 Accepts]: Start accepts. Automaton has has 48 states, 47 states have (on average 3.297872340425532) internal successors, (155), 26 states have internal predecessors, (155), 22 states have call successors, (22), 22 states have call predecessors, (22), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 89 [2023-11-29 00:23:49,450 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:23:49,451 INFO L225 Difference]: With dead ends: 190 [2023-11-29 00:23:49,451 INFO L226 Difference]: Without dead ends: 189 [2023-11-29 00:23:49,454 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 222 GetRequests, 154 SyntacticMatches, 0 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 924 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=1337, Invalid=3493, Unknown=0, NotChecked=0, Total=4830 [2023-11-29 00:23:49,455 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 505 mSDsluCounter, 200 mSDsCounter, 0 mSdLazyCounter, 172 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 505 SdHoareTripleChecker+Valid, 209 SdHoareTripleChecker+Invalid, 174 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 172 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 00:23:49,455 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [505 Valid, 209 Invalid, 174 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 172 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 00:23:49,456 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 189 states. [2023-11-29 00:23:49,484 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 189 to 186. [2023-11-29 00:23:49,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 186 states, 162 states have (on average 1.0061728395061729) internal successors, (163), 162 states have internal predecessors, (163), 23 states have call successors, (23), 23 states have call predecessors, (23), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:23:49,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 186 states to 186 states and 186 transitions. [2023-11-29 00:23:49,486 INFO L78 Accepts]: Start accepts. Automaton has 186 states and 186 transitions. Word has length 89 [2023-11-29 00:23:49,487 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:23:49,487 INFO L495 AbstractCegarLoop]: Abstraction has 186 states and 186 transitions. [2023-11-29 00:23:49,487 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 48 states, 47 states have (on average 3.297872340425532) internal successors, (155), 26 states have internal predecessors, (155), 22 states have call successors, (22), 22 states have call predecessors, (22), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:23:49,487 INFO L276 IsEmpty]: Start isEmpty. Operand 186 states and 186 transitions. [2023-11-29 00:23:49,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2023-11-29 00:23:49,491 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:23:49,491 INFO L195 NwaCegarLoop]: trace histogram [23, 23, 23, 23, 22, 22, 22, 22, 1, 1, 1, 1, 1] [2023-11-29 00:23:49,496 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30c4f446-39c7-417b-9fa9-b434896c35e9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2023-11-29 00:23:49,692 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30c4f446-39c7-417b-9fa9-b434896c35e9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2023-11-29 00:23:49,693 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting additionErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2023-11-29 00:23:49,693 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:23:49,693 INFO L85 PathProgramCache]: Analyzing trace with hash 756035760, now seen corresponding path program 4 times [2023-11-29 00:23:49,693 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:23:49,693 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1981542484] [2023-11-29 00:23:49,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:23:49,693 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:23:49,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:23:51,231 INFO L134 CoverageAnalysis]: Checked inductivity of 1958 backedges. 0 proven. 1958 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 00:23:51,231 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:23:51,231 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1981542484] [2023-11-29 00:23:51,231 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1981542484] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 00:23:51,231 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [688881841] [2023-11-29 00:23:51,231 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-11-29 00:23:51,231 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:23:51,232 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30c4f446-39c7-417b-9fa9-b434896c35e9/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:23:51,233 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30c4f446-39c7-417b-9fa9-b434896c35e9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 00:23:51,236 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30c4f446-39c7-417b-9fa9-b434896c35e9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-29 00:23:51,338 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-11-29 00:23:51,338 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 00:23:51,341 INFO L262 TraceCheckSpWp]: Trace formula consists of 395 conjuncts, 48 conjunts are in the unsatisfiable core [2023-11-29 00:23:51,349 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:23:51,655 INFO L134 CoverageAnalysis]: Checked inductivity of 1958 backedges. 0 proven. 1958 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 00:23:51,655 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 00:23:53,451 INFO L134 CoverageAnalysis]: Checked inductivity of 1958 backedges. 0 proven. 1958 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 00:23:53,451 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [688881841] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 00:23:53,452 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-29 00:23:53,452 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [48, 48, 48] total 95 [2023-11-29 00:23:53,452 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [153638624] [2023-11-29 00:23:53,452 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-29 00:23:53,453 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 96 states [2023-11-29 00:23:53,453 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:23:53,456 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 96 interpolants. [2023-11-29 00:23:53,461 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2260, Invalid=6860, Unknown=0, NotChecked=0, Total=9120 [2023-11-29 00:23:53,461 INFO L87 Difference]: Start difference. First operand 186 states and 186 transitions. Second operand has 96 states, 95 states have (on average 3.4) internal successors, (323), 50 states have internal predecessors, (323), 46 states have call successors, (46), 46 states have call predecessors, (46), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:23:55,334 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:23:55,334 INFO L93 Difference]: Finished difference Result 382 states and 405 transitions. [2023-11-29 00:23:55,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 96 states. [2023-11-29 00:23:55,335 INFO L78 Accepts]: Start accepts. Automaton has has 96 states, 95 states have (on average 3.4) internal successors, (323), 50 states have internal predecessors, (323), 46 states have call successors, (46), 46 states have call predecessors, (46), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 185 [2023-11-29 00:23:55,336 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:23:55,338 INFO L225 Difference]: With dead ends: 382 [2023-11-29 00:23:55,338 INFO L226 Difference]: Without dead ends: 381 [2023-11-29 00:23:55,345 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 462 GetRequests, 322 SyntacticMatches, 0 SemanticMatches, 140 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4140 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=5549, Invalid=14473, Unknown=0, NotChecked=0, Total=20022 [2023-11-29 00:23:55,346 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 1170 mSDsluCounter, 398 mSDsCounter, 0 mSdLazyCounter, 346 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1170 SdHoareTripleChecker+Valid, 407 SdHoareTripleChecker+Invalid, 348 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 346 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 00:23:55,346 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1170 Valid, 407 Invalid, 348 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 346 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 00:23:55,347 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 381 states. [2023-11-29 00:23:55,368 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 381 to 378. [2023-11-29 00:23:55,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 378 states, 330 states have (on average 1.003030303030303) internal successors, (331), 330 states have internal predecessors, (331), 47 states have call successors, (47), 47 states have call predecessors, (47), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:23:55,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 378 states to 378 states and 378 transitions. [2023-11-29 00:23:55,372 INFO L78 Accepts]: Start accepts. Automaton has 378 states and 378 transitions. Word has length 185 [2023-11-29 00:23:55,372 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:23:55,372 INFO L495 AbstractCegarLoop]: Abstraction has 378 states and 378 transitions. [2023-11-29 00:23:55,373 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 96 states, 95 states have (on average 3.4) internal successors, (323), 50 states have internal predecessors, (323), 46 states have call successors, (46), 46 states have call predecessors, (46), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:23:55,373 INFO L276 IsEmpty]: Start isEmpty. Operand 378 states and 378 transitions. [2023-11-29 00:23:55,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 378 [2023-11-29 00:23:55,394 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:23:55,394 INFO L195 NwaCegarLoop]: trace histogram [47, 47, 47, 47, 46, 46, 46, 46, 1, 1, 1, 1, 1] [2023-11-29 00:23:55,400 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30c4f446-39c7-417b-9fa9-b434896c35e9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2023-11-29 00:23:55,599 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30c4f446-39c7-417b-9fa9-b434896c35e9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2023-11-29 00:23:55,600 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting additionErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2023-11-29 00:23:55,600 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:23:55,600 INFO L85 PathProgramCache]: Analyzing trace with hash -1522736648, now seen corresponding path program 5 times [2023-11-29 00:23:55,600 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:23:55,600 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [830215013] [2023-11-29 00:23:55,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:23:55,601 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:23:55,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:24:00,864 INFO L134 CoverageAnalysis]: Checked inductivity of 8510 backedges. 0 proven. 8510 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 00:24:00,864 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:24:00,864 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [830215013] [2023-11-29 00:24:00,864 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [830215013] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 00:24:00,864 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2057987318] [2023-11-29 00:24:00,864 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2023-11-29 00:24:00,864 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:24:00,864 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30c4f446-39c7-417b-9fa9-b434896c35e9/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:24:00,865 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30c4f446-39c7-417b-9fa9-b434896c35e9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 00:24:00,866 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30c4f446-39c7-417b-9fa9-b434896c35e9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-29 00:24:01,080 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 47 check-sat command(s) [2023-11-29 00:24:01,080 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 00:24:01,086 INFO L262 TraceCheckSpWp]: Trace formula consists of 779 conjuncts, 96 conjunts are in the unsatisfiable core [2023-11-29 00:24:01,094 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:24:01,512 INFO L134 CoverageAnalysis]: Checked inductivity of 8510 backedges. 0 proven. 8510 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 00:24:01,512 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 00:24:07,438 INFO L134 CoverageAnalysis]: Checked inductivity of 8510 backedges. 0 proven. 8510 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 00:24:07,438 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2057987318] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 00:24:07,438 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-29 00:24:07,438 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [96, 96, 96] total 191 [2023-11-29 00:24:07,439 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [818815584] [2023-11-29 00:24:07,439 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-29 00:24:07,440 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 192 states [2023-11-29 00:24:07,440 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:24:07,443 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 192 interpolants. [2023-11-29 00:24:07,450 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9124, Invalid=27548, Unknown=0, NotChecked=0, Total=36672 [2023-11-29 00:24:07,451 INFO L87 Difference]: Start difference. First operand 378 states and 378 transitions. Second operand has 192 states, 191 states have (on average 3.450261780104712) internal successors, (659), 98 states have internal predecessors, (659), 94 states have call successors, (94), 94 states have call predecessors, (94), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:24:14,430 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:24:14,431 INFO L93 Difference]: Finished difference Result 766 states and 813 transitions. [2023-11-29 00:24:14,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 192 states. [2023-11-29 00:24:14,431 INFO L78 Accepts]: Start accepts. Automaton has has 192 states, 191 states have (on average 3.450261780104712) internal successors, (659), 98 states have internal predecessors, (659), 94 states have call successors, (94), 94 states have call predecessors, (94), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 377 [2023-11-29 00:24:14,432 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:24:14,435 INFO L225 Difference]: With dead ends: 766 [2023-11-29 00:24:14,435 INFO L226 Difference]: Without dead ends: 765 [2023-11-29 00:24:14,443 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 942 GetRequests, 658 SyntacticMatches, 0 SemanticMatches, 284 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17484 ImplicationChecksByTransitivity, 11.7s TimeCoverageRelationStatistics Valid=22613, Invalid=58897, Unknown=0, NotChecked=0, Total=81510 [2023-11-29 00:24:14,444 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 2654 mSDsluCounter, 791 mSDsCounter, 0 mSdLazyCounter, 683 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2654 SdHoareTripleChecker+Valid, 800 SdHoareTripleChecker+Invalid, 685 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 683 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-29 00:24:14,444 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2654 Valid, 800 Invalid, 685 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 683 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-29 00:24:14,445 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 765 states. [2023-11-29 00:24:14,491 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 765 to 762. [2023-11-29 00:24:14,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 762 states, 666 states have (on average 1.0015015015015014) internal successors, (667), 666 states have internal predecessors, (667), 95 states have call successors, (95), 95 states have call predecessors, (95), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:24:14,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 762 states to 762 states and 762 transitions. [2023-11-29 00:24:14,497 INFO L78 Accepts]: Start accepts. Automaton has 762 states and 762 transitions. Word has length 377 [2023-11-29 00:24:14,498 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:24:14,498 INFO L495 AbstractCegarLoop]: Abstraction has 762 states and 762 transitions. [2023-11-29 00:24:14,499 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 192 states, 191 states have (on average 3.450261780104712) internal successors, (659), 98 states have internal predecessors, (659), 94 states have call successors, (94), 94 states have call predecessors, (94), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:24:14,499 INFO L276 IsEmpty]: Start isEmpty. Operand 762 states and 762 transitions. [2023-11-29 00:24:14,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 762 [2023-11-29 00:24:14,524 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:24:14,525 INFO L195 NwaCegarLoop]: trace histogram [95, 95, 95, 95, 94, 94, 94, 94, 1, 1, 1, 1, 1] [2023-11-29 00:24:14,531 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30c4f446-39c7-417b-9fa9-b434896c35e9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2023-11-29 00:24:14,725 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30c4f446-39c7-417b-9fa9-b434896c35e9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:24:14,725 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting additionErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2023-11-29 00:24:14,726 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:24:14,726 INFO L85 PathProgramCache]: Analyzing trace with hash -1208613752, now seen corresponding path program 6 times [2023-11-29 00:24:14,726 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:24:14,726 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [255296053] [2023-11-29 00:24:14,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:24:14,726 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:24:15,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:24:34,760 INFO L134 CoverageAnalysis]: Checked inductivity of 35438 backedges. 0 proven. 35438 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 00:24:34,760 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:24:34,760 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [255296053] [2023-11-29 00:24:34,760 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [255296053] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 00:24:34,760 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [134331754] [2023-11-29 00:24:34,760 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2023-11-29 00:24:34,760 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:24:34,760 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30c4f446-39c7-417b-9fa9-b434896c35e9/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:24:34,761 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30c4f446-39c7-417b-9fa9-b434896c35e9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 00:24:34,762 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30c4f446-39c7-417b-9fa9-b434896c35e9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-11-29 00:24:35,312 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 95 check-sat command(s) [2023-11-29 00:24:35,312 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 00:24:35,324 INFO L262 TraceCheckSpWp]: Trace formula consists of 1547 conjuncts, 192 conjunts are in the unsatisfiable core [2023-11-29 00:24:35,336 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:24:36,074 INFO L134 CoverageAnalysis]: Checked inductivity of 35438 backedges. 0 proven. 35438 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 00:24:36,074 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 00:24:58,668 INFO L134 CoverageAnalysis]: Checked inductivity of 35438 backedges. 0 proven. 35438 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 00:24:58,668 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [134331754] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 00:24:58,668 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-29 00:24:58,668 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [192, 192, 192] total 383 [2023-11-29 00:24:58,669 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1642113729] [2023-11-29 00:24:58,669 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-29 00:24:58,672 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 384 states [2023-11-29 00:24:58,672 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:24:58,680 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 384 interpolants. [2023-11-29 00:24:58,687 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36676, Invalid=110396, Unknown=0, NotChecked=0, Total=147072 [2023-11-29 00:24:58,688 INFO L87 Difference]: Start difference. First operand 762 states and 762 transitions. Second operand has 384 states, 383 states have (on average 3.475195822454308) internal successors, (1331), 194 states have internal predecessors, (1331), 190 states have call successors, (190), 190 states have call predecessors, (190), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:25:43,464 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:25:43,464 INFO L93 Difference]: Finished difference Result 1534 states and 1629 transitions. [2023-11-29 00:25:43,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 384 states. [2023-11-29 00:25:43,465 INFO L78 Accepts]: Start accepts. Automaton has has 384 states, 383 states have (on average 3.475195822454308) internal successors, (1331), 194 states have internal predecessors, (1331), 190 states have call successors, (190), 190 states have call predecessors, (190), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 761 [2023-11-29 00:25:43,467 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:25:43,474 INFO L225 Difference]: With dead ends: 1534 [2023-11-29 00:25:43,474 INFO L226 Difference]: Without dead ends: 1533 [2023-11-29 00:25:43,495 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1902 GetRequests, 1330 SyntacticMatches, 0 SemanticMatches, 572 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71820 ImplicationChecksByTransitivity, 46.2s TimeCoverageRelationStatistics Valid=91301, Invalid=237601, Unknown=0, NotChecked=0, Total=328902 [2023-11-29 00:25:43,495 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 7015 mSDsluCounter, 1562 mSDsCounter, 0 mSdLazyCounter, 1365 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7015 SdHoareTripleChecker+Valid, 1571 SdHoareTripleChecker+Invalid, 1367 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1365 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-11-29 00:25:43,495 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7015 Valid, 1571 Invalid, 1367 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1365 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-11-29 00:25:43,497 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1533 states. [2023-11-29 00:25:43,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1533 to 1530. [2023-11-29 00:25:43,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1530 states, 1338 states have (on average 1.000747384155456) internal successors, (1339), 1338 states have internal predecessors, (1339), 191 states have call successors, (191), 191 states have call predecessors, (191), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:25:43,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1530 states to 1530 states and 1530 transitions. [2023-11-29 00:25:43,597 INFO L78 Accepts]: Start accepts. Automaton has 1530 states and 1530 transitions. Word has length 761 [2023-11-29 00:25:43,598 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:25:43,598 INFO L495 AbstractCegarLoop]: Abstraction has 1530 states and 1530 transitions. [2023-11-29 00:25:43,600 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 384 states, 383 states have (on average 3.475195822454308) internal successors, (1331), 194 states have internal predecessors, (1331), 190 states have call successors, (190), 190 states have call predecessors, (190), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:25:43,600 INFO L276 IsEmpty]: Start isEmpty. Operand 1530 states and 1530 transitions. [2023-11-29 00:25:43,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1530 [2023-11-29 00:25:43,619 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:25:43,620 INFO L195 NwaCegarLoop]: trace histogram [191, 191, 191, 191, 190, 190, 190, 190, 1, 1, 1, 1, 1] [2023-11-29 00:25:43,625 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30c4f446-39c7-417b-9fa9-b434896c35e9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2023-11-29 00:25:43,820 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30c4f446-39c7-417b-9fa9-b434896c35e9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2023-11-29 00:25:43,821 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting additionErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2023-11-29 00:25:43,821 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:25:43,821 INFO L85 PathProgramCache]: Analyzing trace with hash 518474152, now seen corresponding path program 7 times [2023-11-29 00:25:43,821 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:25:43,822 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1112794984] [2023-11-29 00:25:43,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:25:43,822 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:25:45,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:27:36,700 INFO L134 CoverageAnalysis]: Checked inductivity of 144590 backedges. 0 proven. 144590 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 00:27:36,700 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:27:36,701 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1112794984] [2023-11-29 00:27:36,701 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1112794984] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 00:27:36,701 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [122043066] [2023-11-29 00:27:36,701 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2023-11-29 00:27:36,701 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:27:36,701 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30c4f446-39c7-417b-9fa9-b434896c35e9/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:27:36,702 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30c4f446-39c7-417b-9fa9-b434896c35e9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 00:27:36,703 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30c4f446-39c7-417b-9fa9-b434896c35e9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-11-29 00:27:37,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:27:37,251 INFO L262 TraceCheckSpWp]: Trace formula consists of 3083 conjuncts, 384 conjunts are in the unsatisfiable core [2023-11-29 00:27:37,284 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:27:38,765 INFO L134 CoverageAnalysis]: Checked inductivity of 144590 backedges. 0 proven. 144590 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 00:27:38,766 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 00:29:08,412 INFO L134 CoverageAnalysis]: Checked inductivity of 144590 backedges. 0 proven. 144590 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 00:29:08,413 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [122043066] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 00:29:08,413 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-29 00:29:08,414 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [384, 384, 384] total 767 [2023-11-29 00:29:08,415 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1941360507] [2023-11-29 00:29:08,415 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-29 00:29:08,418 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 768 states [2023-11-29 00:29:08,419 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:29:08,440 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 768 interpolants. [2023-11-29 00:29:08,465 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=147076, Invalid=441980, Unknown=0, NotChecked=0, Total=589056 [2023-11-29 00:29:08,467 INFO L87 Difference]: Start difference. First operand 1530 states and 1530 transitions. Second operand has 768 states, 767 states have (on average 3.48761408083442) internal successors, (2675), 386 states have internal predecessors, (2675), 382 states have call successors, (382), 382 states have call predecessors, (382), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:36:35,118 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:36:35,119 INFO L93 Difference]: Finished difference Result 3070 states and 3261 transitions. [2023-11-29 00:36:35,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 768 states. [2023-11-29 00:36:35,120 INFO L78 Accepts]: Start accepts. Automaton has has 768 states, 767 states have (on average 3.48761408083442) internal successors, (2675), 386 states have internal predecessors, (2675), 382 states have call successors, (382), 382 states have call predecessors, (382), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 1529 [2023-11-29 00:36:35,123 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:36:35,134 INFO L225 Difference]: With dead ends: 3070 [2023-11-29 00:36:35,134 INFO L226 Difference]: Without dead ends: 3069 [2023-11-29 00:36:35,230 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3822 GetRequests, 2674 SyntacticMatches, 0 SemanticMatches, 1148 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 291084 ImplicationChecksByTransitivity, 186.2s TimeCoverageRelationStatistics Valid=366917, Invalid=954433, Unknown=0, NotChecked=0, Total=1321350 [2023-11-29 00:36:35,231 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 15345 mSDsluCounter, 3113 mSDsCounter, 0 mSdLazyCounter, 2718 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15345 SdHoareTripleChecker+Valid, 3122 SdHoareTripleChecker+Invalid, 2720 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 2718 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2023-11-29 00:36:35,231 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15345 Valid, 3122 Invalid, 2720 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 2718 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2023-11-29 00:36:35,234 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3069 states. [2023-11-29 00:36:35,418 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3069 to 3066. [2023-11-29 00:36:35,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3066 states, 2682 states have (on average 1.000372856077554) internal successors, (2683), 2682 states have internal predecessors, (2683), 383 states have call successors, (383), 383 states have call predecessors, (383), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:36:35,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3066 states to 3066 states and 3066 transitions. [2023-11-29 00:36:35,437 INFO L78 Accepts]: Start accepts. Automaton has 3066 states and 3066 transitions. Word has length 1529 [2023-11-29 00:36:35,440 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:36:35,440 INFO L495 AbstractCegarLoop]: Abstraction has 3066 states and 3066 transitions. [2023-11-29 00:36:35,442 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 768 states, 767 states have (on average 3.48761408083442) internal successors, (2675), 386 states have internal predecessors, (2675), 382 states have call successors, (382), 382 states have call predecessors, (382), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:36:35,442 INFO L276 IsEmpty]: Start isEmpty. Operand 3066 states and 3066 transitions. [2023-11-29 00:36:35,511 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3066 [2023-11-29 00:36:35,511 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:36:35,512 INFO L195 NwaCegarLoop]: trace histogram [383, 383, 383, 383, 382, 382, 382, 382, 1, 1, 1, 1, 1] [2023-11-29 00:36:35,523 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30c4f446-39c7-417b-9fa9-b434896c35e9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-11-29 00:36:35,713 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30c4f446-39c7-417b-9fa9-b434896c35e9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2023-11-29 00:36:35,713 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting additionErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2023-11-29 00:36:35,714 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:36:35,714 INFO L85 PathProgramCache]: Analyzing trace with hash -1295658008, now seen corresponding path program 8 times [2023-11-29 00:36:35,714 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:36:35,714 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [787729972] [2023-11-29 00:36:35,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:36:35,714 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:36:39,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat