./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/bitvector/byte_add_1-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 4fc63b2a Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d1eeb8-b3ce-4945-9570-06cbbf44f806/bin/uautomizer-verify-4GaUIPS5ZU/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d1eeb8-b3ce-4945-9570-06cbbf44f806/bin/uautomizer-verify-4GaUIPS5ZU/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d1eeb8-b3ce-4945-9570-06cbbf44f806/bin/uautomizer-verify-4GaUIPS5ZU/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d1eeb8-b3ce-4945-9570-06cbbf44f806/bin/uautomizer-verify-4GaUIPS5ZU/config/AutomizerReach.xml -i ../../sv-benchmarks/c/bitvector/byte_add_1-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d1eeb8-b3ce-4945-9570-06cbbf44f806/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d1eeb8-b3ce-4945-9570-06cbbf44f806/bin/uautomizer-verify-4GaUIPS5ZU --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 db53fe9124e215e75c7f288cadf12df33daef67c04c75ea6ca77bc804670a99c --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4fc63b2 [2024-10-31 22:09:14,602 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-31 22:09:14,712 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d1eeb8-b3ce-4945-9570-06cbbf44f806/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-10-31 22:09:14,723 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-31 22:09:14,724 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-31 22:09:14,760 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-31 22:09:14,761 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-31 22:09:14,762 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-31 22:09:14,763 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-31 22:09:14,763 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-31 22:09:14,764 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-31 22:09:14,764 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-31 22:09:14,765 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-31 22:09:14,765 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-31 22:09:14,766 INFO L153 SettingsManager]: * Use SBE=true [2024-10-31 22:09:14,766 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-31 22:09:14,767 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-31 22:09:14,767 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-31 22:09:14,768 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-31 22:09:14,768 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-31 22:09:14,768 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-31 22:09:14,773 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-31 22:09:14,773 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-31 22:09:14,774 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-31 22:09:14,774 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-31 22:09:14,775 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-10-31 22:09:14,775 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-31 22:09:14,775 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-31 22:09:14,776 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-31 22:09:14,776 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-31 22:09:14,776 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-31 22:09:14,777 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-31 22:09:14,777 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-31 22:09:14,777 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-31 22:09:14,778 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-31 22:09:14,778 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-31 22:09:14,778 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-31 22:09:14,779 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-31 22:09:14,779 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-31 22:09:14,779 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-31 22:09:14,780 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-31 22:09:14,780 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-31 22:09:14,780 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-31 22:09:14,781 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-31 22:09:14,781 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_54d1eeb8-b3ce-4945-9570-06cbbf44f806/bin/uautomizer-verify-4GaUIPS5ZU/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d1eeb8-b3ce-4945-9570-06cbbf44f806/bin/uautomizer-verify-4GaUIPS5ZU Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> db53fe9124e215e75c7f288cadf12df33daef67c04c75ea6ca77bc804670a99c [2024-10-31 22:09:15,111 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-31 22:09:15,138 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-31 22:09:15,143 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-31 22:09:15,144 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-31 22:09:15,145 INFO L274 PluginConnector]: CDTParser initialized [2024-10-31 22:09:15,146 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d1eeb8-b3ce-4945-9570-06cbbf44f806/bin/uautomizer-verify-4GaUIPS5ZU/../../sv-benchmarks/c/bitvector/byte_add_1-2.i Unable to find full path for "g++" [2024-10-31 22:09:17,222 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-31 22:09:17,425 INFO L384 CDTParser]: Found 1 translation units. [2024-10-31 22:09:17,426 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d1eeb8-b3ce-4945-9570-06cbbf44f806/sv-benchmarks/c/bitvector/byte_add_1-2.i [2024-10-31 22:09:17,434 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d1eeb8-b3ce-4945-9570-06cbbf44f806/bin/uautomizer-verify-4GaUIPS5ZU/data/a99a00940/4d260f4afccd44069e0b5a7304865352/FLAG3ae29e117 [2024-10-31 22:09:17,450 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d1eeb8-b3ce-4945-9570-06cbbf44f806/bin/uautomizer-verify-4GaUIPS5ZU/data/a99a00940/4d260f4afccd44069e0b5a7304865352 [2024-10-31 22:09:17,453 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-31 22:09:17,454 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-31 22:09:17,455 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-31 22:09:17,456 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-31 22:09:17,463 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-31 22:09:17,463 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 10:09:17" (1/1) ... [2024-10-31 22:09:17,465 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@26d7bcc0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:09:17, skipping insertion in model container [2024-10-31 22:09:17,465 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 10:09:17" (1/1) ... [2024-10-31 22:09:17,494 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-31 22:09:17,757 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 22:09:17,771 INFO L200 MainTranslator]: Completed pre-run [2024-10-31 22:09:17,827 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 22:09:17,849 INFO L204 MainTranslator]: Completed translation [2024-10-31 22:09:17,850 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:09:17 WrapperNode [2024-10-31 22:09:17,850 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-31 22:09:17,851 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-31 22:09:17,852 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-31 22:09:17,852 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-31 22:09:17,860 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:09:17" (1/1) ... [2024-10-31 22:09:17,871 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:09:17" (1/1) ... [2024-10-31 22:09:17,921 INFO L138 Inliner]: procedures = 16, calls = 9, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 190 [2024-10-31 22:09:17,921 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-31 22:09:17,922 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-31 22:09:17,922 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-31 22:09:17,922 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-31 22:09:17,942 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:09:17" (1/1) ... [2024-10-31 22:09:17,946 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:09:17" (1/1) ... [2024-10-31 22:09:17,953 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:09:17" (1/1) ... [2024-10-31 22:09:17,970 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]. [2024-10-31 22:09:17,971 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:09:17" (1/1) ... [2024-10-31 22:09:17,971 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:09:17" (1/1) ... [2024-10-31 22:09:17,983 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:09:17" (1/1) ... [2024-10-31 22:09:17,988 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:09:17" (1/1) ... [2024-10-31 22:09:17,992 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:09:17" (1/1) ... [2024-10-31 22:09:17,994 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:09:17" (1/1) ... [2024-10-31 22:09:18,000 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-31 22:09:18,000 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-31 22:09:18,001 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-31 22:09:18,001 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-31 22:09:18,002 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:09:17" (1/1) ... [2024-10-31 22:09:18,010 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-31 22:09:18,023 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d1eeb8-b3ce-4945-9570-06cbbf44f806/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:09:18,043 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d1eeb8-b3ce-4945-9570-06cbbf44f806/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-31 22:09:18,047 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d1eeb8-b3ce-4945-9570-06cbbf44f806/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-31 22:09:18,085 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-31 22:09:18,085 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-31 22:09:18,085 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-31 22:09:18,085 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-31 22:09:18,178 INFO L238 CfgBuilder]: Building ICFG [2024-10-31 22:09:18,180 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-31 22:09:18,894 INFO L? ?]: Removed 38 outVars from TransFormulas that were not future-live. [2024-10-31 22:09:18,895 INFO L287 CfgBuilder]: Performing block encoding [2024-10-31 22:09:18,930 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-31 22:09:18,930 INFO L316 CfgBuilder]: Removed 2 assume(true) statements. [2024-10-31 22:09:18,931 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:09:18 BoogieIcfgContainer [2024-10-31 22:09:18,931 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-31 22:09:18,938 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-31 22:09:18,938 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-31 22:09:18,942 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-31 22:09:18,943 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.10 10:09:17" (1/3) ... [2024-10-31 22:09:18,948 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43821ce5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.10 10:09:18, skipping insertion in model container [2024-10-31 22:09:18,948 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:09:17" (2/3) ... [2024-10-31 22:09:18,949 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43821ce5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.10 10:09:18, skipping insertion in model container [2024-10-31 22:09:18,949 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:09:18" (3/3) ... [2024-10-31 22:09:18,950 INFO L112 eAbstractionObserver]: Analyzing ICFG byte_add_1-2.i [2024-10-31 22:09:18,974 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-31 22:09:18,983 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 41 error locations. [2024-10-31 22:09:19,118 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-31 22:09:19,127 INFO L333 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, 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;@7c9da8a0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-31 22:09:19,127 INFO L334 AbstractCegarLoop]: Starting to check reachability of 41 error locations. [2024-10-31 22:09:19,146 INFO L276 IsEmpty]: Start isEmpty. Operand has 132 states, 90 states have (on average 1.8666666666666667) internal successors, (168), 131 states have internal predecessors, (168), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:09:19,162 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2024-10-31 22:09:19,167 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:09:19,168 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2024-10-31 22:09:19,169 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 38 more)] === [2024-10-31 22:09:19,184 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:09:19,185 INFO L85 PathProgramCache]: Analyzing trace with hash 925604, now seen corresponding path program 1 times [2024-10-31 22:09:19,206 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:09:19,211 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [762772187] [2024-10-31 22:09:19,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:09:19,212 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:09:19,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:09:19,451 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:09:19,452 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:09:19,453 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [762772187] [2024-10-31 22:09:19,454 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [762772187] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:09:19,454 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:09:19,455 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-10-31 22:09:19,457 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1063188397] [2024-10-31 22:09:19,458 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:09:19,464 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-31 22:09:19,465 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:09:19,497 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-31 22:09:19,498 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-31 22:09:19,502 INFO L87 Difference]: Start difference. First operand has 132 states, 90 states have (on average 1.8666666666666667) internal successors, (168), 131 states have internal predecessors, (168), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 1 states have (on average 4.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:09:19,534 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:09:19,535 INFO L93 Difference]: Finished difference Result 167 states and 226 transitions. [2024-10-31 22:09:19,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-31 22:09:19,537 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 1 states have (on average 4.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2024-10-31 22:09:19,538 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:09:19,549 INFO L225 Difference]: With dead ends: 167 [2024-10-31 22:09:19,549 INFO L226 Difference]: Without dead ends: 79 [2024-10-31 22:09:19,554 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-31 22:09:19,559 INFO L432 NwaCegarLoop]: 123 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 123 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-31 22:09:19,560 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 123 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-31 22:09:19,584 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states. [2024-10-31 22:09:19,611 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 79. [2024-10-31 22:09:19,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 79 states, 78 states have (on average 1.3974358974358974) internal successors, (109), 78 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:09:19,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 109 transitions. [2024-10-31 22:09:19,621 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 109 transitions. Word has length 4 [2024-10-31 22:09:19,622 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:09:19,622 INFO L471 AbstractCegarLoop]: Abstraction has 79 states and 109 transitions. [2024-10-31 22:09:19,622 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 4.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:09:19,623 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 109 transitions. [2024-10-31 22:09:19,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2024-10-31 22:09:19,626 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:09:19,626 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:09:19,626 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-31 22:09:19,627 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr40ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 38 more)] === [2024-10-31 22:09:19,630 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:09:19,631 INFO L85 PathProgramCache]: Analyzing trace with hash 1213044638, now seen corresponding path program 1 times [2024-10-31 22:09:19,631 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:09:19,631 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [213247463] [2024-10-31 22:09:19,632 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:09:19,633 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:09:19,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:09:19,909 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:09:19,910 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:09:19,910 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [213247463] [2024-10-31 22:09:19,910 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [213247463] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:09:19,911 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:09:19,912 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-31 22:09:19,912 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2111285398] [2024-10-31 22:09:19,912 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:09:19,915 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:09:19,915 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:09:19,916 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:09:19,918 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:09:19,919 INFO L87 Difference]: Start difference. First operand 79 states and 109 transitions. Second operand has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:09:20,162 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:09:20,162 INFO L93 Difference]: Finished difference Result 165 states and 240 transitions. [2024-10-31 22:09:20,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:09:20,167 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2024-10-31 22:09:20,167 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:09:20,168 INFO L225 Difference]: With dead ends: 165 [2024-10-31 22:09:20,168 INFO L226 Difference]: Without dead ends: 108 [2024-10-31 22:09:20,169 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:09:20,172 INFO L432 NwaCegarLoop]: 84 mSDtfsCounter, 30 mSDsluCounter, 65 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 149 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 68 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-31 22:09:20,173 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 149 Invalid, 84 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-31 22:09:20,174 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108 states. [2024-10-31 22:09:20,187 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108 to 104. [2024-10-31 22:09:20,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 104 states, 103 states have (on average 1.3398058252427185) internal successors, (138), 103 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:09:20,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 138 transitions. [2024-10-31 22:09:20,189 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 138 transitions. Word has length 19 [2024-10-31 22:09:20,189 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:09:20,189 INFO L471 AbstractCegarLoop]: Abstraction has 104 states and 138 transitions. [2024-10-31 22:09:20,190 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:09:20,190 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 138 transitions. [2024-10-31 22:09:20,191 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2024-10-31 22:09:20,191 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:09:20,192 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:09:20,192 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-31 22:09:20,192 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr40ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 38 more)] === [2024-10-31 22:09:20,193 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:09:20,193 INFO L85 PathProgramCache]: Analyzing trace with hash -1776244864, now seen corresponding path program 1 times [2024-10-31 22:09:20,193 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:09:20,194 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1059003572] [2024-10-31 22:09:20,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:09:20,194 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:09:20,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:09:20,404 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:09:20,404 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:09:20,405 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1059003572] [2024-10-31 22:09:20,405 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1059003572] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:09:20,405 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:09:20,406 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-31 22:09:20,407 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [243861747] [2024-10-31 22:09:20,407 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:09:20,407 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-31 22:09:20,408 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:09:20,409 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-31 22:09:20,409 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-31 22:09:20,411 INFO L87 Difference]: Start difference. First operand 104 states and 138 transitions. Second operand has 4 states, 4 states have (on average 6.5) internal successors, (26), 4 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:09:20,792 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:09:20,793 INFO L93 Difference]: Finished difference Result 234 states and 345 transitions. [2024-10-31 22:09:20,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-31 22:09:20,793 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.5) internal successors, (26), 4 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2024-10-31 22:09:20,794 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:09:20,795 INFO L225 Difference]: With dead ends: 234 [2024-10-31 22:09:20,795 INFO L226 Difference]: Without dead ends: 177 [2024-10-31 22:09:20,796 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-31 22:09:20,797 INFO L432 NwaCegarLoop]: 76 mSDtfsCounter, 114 mSDsluCounter, 129 mSDsCounter, 0 mSdLazyCounter, 128 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 114 SdHoareTripleChecker+Valid, 205 SdHoareTripleChecker+Invalid, 176 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 128 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-31 22:09:20,798 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [114 Valid, 205 Invalid, 176 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 128 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-31 22:09:20,799 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 177 states. [2024-10-31 22:09:20,811 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 177 to 129. [2024-10-31 22:09:20,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 129 states, 128 states have (on average 1.3671875) internal successors, (175), 128 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:09:20,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 129 states and 175 transitions. [2024-10-31 22:09:20,817 INFO L78 Accepts]: Start accepts. Automaton has 129 states and 175 transitions. Word has length 26 [2024-10-31 22:09:20,817 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:09:20,817 INFO L471 AbstractCegarLoop]: Abstraction has 129 states and 175 transitions. [2024-10-31 22:09:20,817 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.5) internal successors, (26), 4 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:09:20,821 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states and 175 transitions. [2024-10-31 22:09:20,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2024-10-31 22:09:20,823 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:09:20,823 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:09:20,823 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-31 22:09:20,823 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr40ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 38 more)] === [2024-10-31 22:09:20,824 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:09:20,824 INFO L85 PathProgramCache]: Analyzing trace with hash 1932025242, now seen corresponding path program 1 times [2024-10-31 22:09:20,825 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:09:20,825 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1614871413] [2024-10-31 22:09:20,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:09:20,825 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:09:20,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:09:21,056 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-10-31 22:09:21,056 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:09:21,056 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1614871413] [2024-10-31 22:09:21,056 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1614871413] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:09:21,058 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:09:21,058 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-31 22:09:21,059 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [138626801] [2024-10-31 22:09:21,059 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:09:21,059 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-31 22:09:21,060 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:09:21,060 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-31 22:09:21,060 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-31 22:09:21,061 INFO L87 Difference]: Start difference. First operand 129 states and 175 transitions. Second operand has 4 states, 4 states have (on average 7.0) internal successors, (28), 4 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:09:21,270 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:09:21,270 INFO L93 Difference]: Finished difference Result 335 states and 454 transitions. [2024-10-31 22:09:21,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-31 22:09:21,271 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.0) internal successors, (28), 4 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2024-10-31 22:09:21,271 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:09:21,273 INFO L225 Difference]: With dead ends: 335 [2024-10-31 22:09:21,273 INFO L226 Difference]: Without dead ends: 231 [2024-10-31 22:09:21,274 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-31 22:09:21,276 INFO L432 NwaCegarLoop]: 131 mSDtfsCounter, 110 mSDsluCounter, 179 mSDsCounter, 0 mSdLazyCounter, 106 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 310 SdHoareTripleChecker+Invalid, 107 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 106 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-31 22:09:21,277 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [110 Valid, 310 Invalid, 107 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 106 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-31 22:09:21,278 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 231 states. [2024-10-31 22:09:21,289 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 231 to 142. [2024-10-31 22:09:21,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 142 states, 141 states have (on average 1.3546099290780143) internal successors, (191), 141 states have internal predecessors, (191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:09:21,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 142 states and 191 transitions. [2024-10-31 22:09:21,292 INFO L78 Accepts]: Start accepts. Automaton has 142 states and 191 transitions. Word has length 33 [2024-10-31 22:09:21,292 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:09:21,292 INFO L471 AbstractCegarLoop]: Abstraction has 142 states and 191 transitions. [2024-10-31 22:09:21,292 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.0) internal successors, (28), 4 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:09:21,293 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states and 191 transitions. [2024-10-31 22:09:21,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2024-10-31 22:09:21,296 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:09:21,296 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:09:21,296 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-31 22:09:21,297 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr40ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 38 more)] === [2024-10-31 22:09:21,297 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:09:21,297 INFO L85 PathProgramCache]: Analyzing trace with hash 880692086, now seen corresponding path program 1 times [2024-10-31 22:09:21,298 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:09:21,298 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1648010888] [2024-10-31 22:09:21,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:09:21,298 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:09:21,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:09:21,477 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-10-31 22:09:21,477 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:09:21,478 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1648010888] [2024-10-31 22:09:21,478 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1648010888] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:09:21,480 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:09:21,480 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-31 22:09:21,481 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1806195484] [2024-10-31 22:09:21,481 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:09:21,481 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-31 22:09:21,482 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:09:21,482 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-31 22:09:21,483 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-31 22:09:21,483 INFO L87 Difference]: Start difference. First operand 142 states and 191 transitions. Second operand has 4 states, 4 states have (on average 7.75) internal successors, (31), 4 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:09:21,686 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:09:21,687 INFO L93 Difference]: Finished difference Result 341 states and 460 transitions. [2024-10-31 22:09:21,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-31 22:09:21,688 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.75) internal successors, (31), 4 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 36 [2024-10-31 22:09:21,688 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:09:21,689 INFO L225 Difference]: With dead ends: 341 [2024-10-31 22:09:21,689 INFO L226 Difference]: Without dead ends: 237 [2024-10-31 22:09:21,690 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-31 22:09:21,691 INFO L432 NwaCegarLoop]: 123 mSDtfsCounter, 99 mSDsluCounter, 177 mSDsCounter, 0 mSdLazyCounter, 108 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 99 SdHoareTripleChecker+Valid, 300 SdHoareTripleChecker+Invalid, 109 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 108 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-31 22:09:21,692 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [99 Valid, 300 Invalid, 109 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 108 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-31 22:09:21,693 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 237 states. [2024-10-31 22:09:21,702 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 237 to 155. [2024-10-31 22:09:21,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 155 states, 154 states have (on average 1.3311688311688312) internal successors, (205), 154 states have internal predecessors, (205), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:09:21,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155 states to 155 states and 205 transitions. [2024-10-31 22:09:21,708 INFO L78 Accepts]: Start accepts. Automaton has 155 states and 205 transitions. Word has length 36 [2024-10-31 22:09:21,708 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:09:21,709 INFO L471 AbstractCegarLoop]: Abstraction has 155 states and 205 transitions. [2024-10-31 22:09:21,709 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.75) internal successors, (31), 4 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:09:21,709 INFO L276 IsEmpty]: Start isEmpty. Operand 155 states and 205 transitions. [2024-10-31 22:09:21,710 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2024-10-31 22:09:21,710 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:09:21,710 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:09:21,711 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-31 22:09:21,711 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr40ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 38 more)] === [2024-10-31 22:09:21,711 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:09:21,715 INFO L85 PathProgramCache]: Analyzing trace with hash -1757161921, now seen corresponding path program 1 times [2024-10-31 22:09:21,715 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:09:21,715 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [881497388] [2024-10-31 22:09:21,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:09:21,715 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:09:21,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:09:21,891 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:09:21,891 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:09:21,892 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [881497388] [2024-10-31 22:09:21,893 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [881497388] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-31 22:09:21,893 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [660817768] [2024-10-31 22:09:21,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:09:21,894 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:09:21,894 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d1eeb8-b3ce-4945-9570-06cbbf44f806/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:09:21,896 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d1eeb8-b3ce-4945-9570-06cbbf44f806/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 22:09:21,898 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d1eeb8-b3ce-4945-9570-06cbbf44f806/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-31 22:09:21,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:09:21,996 INFO L255 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-31 22:09:22,005 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:09:22,109 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-10-31 22:09:22,110 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-31 22:09:22,110 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [660817768] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:09:22,110 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-31 22:09:22,110 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 6 [2024-10-31 22:09:22,111 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [618719575] [2024-10-31 22:09:22,111 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:09:22,114 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-31 22:09:22,114 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:09:22,115 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-31 22:09:22,115 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-10-31 22:09:22,115 INFO L87 Difference]: Start difference. First operand 155 states and 205 transitions. Second operand has 4 states, 4 states have (on average 9.5) internal successors, (38), 4 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:09:22,415 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:09:22,415 INFO L93 Difference]: Finished difference Result 310 states and 439 transitions. [2024-10-31 22:09:22,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-31 22:09:22,415 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.5) internal successors, (38), 4 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2024-10-31 22:09:22,416 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:09:22,417 INFO L225 Difference]: With dead ends: 310 [2024-10-31 22:09:22,417 INFO L226 Difference]: Without dead ends: 208 [2024-10-31 22:09:22,417 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 38 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-10-31 22:09:22,418 INFO L432 NwaCegarLoop]: 113 mSDtfsCounter, 48 mSDsluCounter, 134 mSDsCounter, 0 mSdLazyCounter, 164 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 247 SdHoareTripleChecker+Invalid, 196 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 164 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-31 22:09:22,419 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 247 Invalid, 196 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 164 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-31 22:09:22,420 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 208 states. [2024-10-31 22:09:22,442 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 208 to 186. [2024-10-31 22:09:22,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 186 states, 185 states have (on average 1.308108108108108) internal successors, (242), 185 states have internal predecessors, (242), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:09:22,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 186 states to 186 states and 242 transitions. [2024-10-31 22:09:22,444 INFO L78 Accepts]: Start accepts. Automaton has 186 states and 242 transitions. Word has length 39 [2024-10-31 22:09:22,444 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:09:22,445 INFO L471 AbstractCegarLoop]: Abstraction has 186 states and 242 transitions. [2024-10-31 22:09:22,445 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.5) internal successors, (38), 4 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:09:22,445 INFO L276 IsEmpty]: Start isEmpty. Operand 186 states and 242 transitions. [2024-10-31 22:09:22,447 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2024-10-31 22:09:22,447 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:09:22,447 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:09:22,477 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d1eeb8-b3ce-4945-9570-06cbbf44f806/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-10-31 22:09:22,651 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d1eeb8-b3ce-4945-9570-06cbbf44f806/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:09:22,651 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr40ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 38 more)] === [2024-10-31 22:09:22,652 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:09:22,652 INFO L85 PathProgramCache]: Analyzing trace with hash 1239804479, now seen corresponding path program 1 times [2024-10-31 22:09:22,652 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:09:22,652 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1415211349] [2024-10-31 22:09:22,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:09:22,653 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:09:22,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:09:22,845 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:09:22,846 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:09:22,846 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1415211349] [2024-10-31 22:09:22,846 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1415211349] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-31 22:09:22,846 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1950561926] [2024-10-31 22:09:22,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:09:22,847 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:09:22,847 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d1eeb8-b3ce-4945-9570-06cbbf44f806/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:09:22,849 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d1eeb8-b3ce-4945-9570-06cbbf44f806/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 22:09:22,851 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d1eeb8-b3ce-4945-9570-06cbbf44f806/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-10-31 22:09:22,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:09:22,922 INFO L255 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-31 22:09:22,924 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:09:22,984 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-10-31 22:09:22,985 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-31 22:09:22,985 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1950561926] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:09:22,985 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-31 22:09:22,985 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 7 [2024-10-31 22:09:22,985 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [281824059] [2024-10-31 22:09:22,985 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:09:22,986 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-31 22:09:22,986 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:09:22,986 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-31 22:09:22,988 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-10-31 22:09:22,989 INFO L87 Difference]: Start difference. First operand 186 states and 242 transitions. Second operand has 4 states, 4 states have (on average 9.5) internal successors, (38), 4 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:09:23,220 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:09:23,220 INFO L93 Difference]: Finished difference Result 372 states and 507 transitions. [2024-10-31 22:09:23,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-31 22:09:23,221 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.5) internal successors, (38), 4 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 46 [2024-10-31 22:09:23,223 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:09:23,224 INFO L225 Difference]: With dead ends: 372 [2024-10-31 22:09:23,224 INFO L226 Difference]: Without dead ends: 239 [2024-10-31 22:09:23,225 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 45 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-10-31 22:09:23,228 INFO L432 NwaCegarLoop]: 113 mSDtfsCounter, 47 mSDsluCounter, 134 mSDsCounter, 0 mSdLazyCounter, 160 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 247 SdHoareTripleChecker+Invalid, 190 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 160 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-31 22:09:23,229 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 247 Invalid, 190 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 160 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-31 22:09:23,230 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 239 states. [2024-10-31 22:09:23,250 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 239 to 211. [2024-10-31 22:09:23,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 211 states, 210 states have (on average 1.2904761904761906) internal successors, (271), 210 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:09:23,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 211 states to 211 states and 271 transitions. [2024-10-31 22:09:23,252 INFO L78 Accepts]: Start accepts. Automaton has 211 states and 271 transitions. Word has length 46 [2024-10-31 22:09:23,252 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:09:23,252 INFO L471 AbstractCegarLoop]: Abstraction has 211 states and 271 transitions. [2024-10-31 22:09:23,252 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.5) internal successors, (38), 4 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:09:23,252 INFO L276 IsEmpty]: Start isEmpty. Operand 211 states and 271 transitions. [2024-10-31 22:09:23,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2024-10-31 22:09:23,254 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:09:23,255 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:09:23,279 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d1eeb8-b3ce-4945-9570-06cbbf44f806/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-10-31 22:09:23,455 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d1eeb8-b3ce-4945-9570-06cbbf44f806/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:09:23,456 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr40ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 38 more)] === [2024-10-31 22:09:23,456 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:09:23,456 INFO L85 PathProgramCache]: Analyzing trace with hash 1676819835, now seen corresponding path program 1 times [2024-10-31 22:09:23,456 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:09:23,457 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1485720816] [2024-10-31 22:09:23,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:09:23,457 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:09:23,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:09:23,537 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2024-10-31 22:09:23,537 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:09:23,537 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1485720816] [2024-10-31 22:09:23,537 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1485720816] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:09:23,537 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:09:23,537 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:09:23,538 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1362447290] [2024-10-31 22:09:23,538 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:09:23,538 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:09:23,538 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:09:23,539 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:09:23,539 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:09:23,539 INFO L87 Difference]: Start difference. First operand 211 states and 271 transitions. Second operand has 3 states, 2 states have (on average 19.0) internal successors, (38), 3 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:09:23,551 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:09:23,552 INFO L93 Difference]: Finished difference Result 258 states and 328 transitions. [2024-10-31 22:09:23,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:09:23,552 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 19.0) internal successors, (38), 3 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 53 [2024-10-31 22:09:23,553 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:09:23,554 INFO L225 Difference]: With dead ends: 258 [2024-10-31 22:09:23,554 INFO L226 Difference]: Without dead ends: 185 [2024-10-31 22:09:23,554 INFO L431 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 [2024-10-31 22:09:23,555 INFO L432 NwaCegarLoop]: 120 mSDtfsCounter, 16 mSDsluCounter, 105 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 225 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-31 22:09:23,556 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 225 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-31 22:09:23,557 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 185 states. [2024-10-31 22:09:23,562 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 185 to 185. [2024-10-31 22:09:23,563 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 185 states, 184 states have (on average 1.2771739130434783) internal successors, (235), 184 states have internal predecessors, (235), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:09:23,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 185 states to 185 states and 235 transitions. [2024-10-31 22:09:23,564 INFO L78 Accepts]: Start accepts. Automaton has 185 states and 235 transitions. Word has length 53 [2024-10-31 22:09:23,564 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:09:23,564 INFO L471 AbstractCegarLoop]: Abstraction has 185 states and 235 transitions. [2024-10-31 22:09:23,564 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 19.0) internal successors, (38), 3 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:09:23,565 INFO L276 IsEmpty]: Start isEmpty. Operand 185 states and 235 transitions. [2024-10-31 22:09:23,566 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-10-31 22:09:23,567 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:09:23,567 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:09:23,567 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-31 22:09:23,567 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr40ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 38 more)] === [2024-10-31 22:09:23,568 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:09:23,568 INFO L85 PathProgramCache]: Analyzing trace with hash 2137686151, now seen corresponding path program 1 times [2024-10-31 22:09:23,568 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:09:23,568 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [218225386] [2024-10-31 22:09:23,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:09:23,569 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:09:23,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:09:23,789 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2024-10-31 22:09:23,789 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:09:23,790 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [218225386] [2024-10-31 22:09:23,790 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [218225386] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:09:23,790 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:09:23,790 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-31 22:09:23,790 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1486671316] [2024-10-31 22:09:23,790 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:09:23,791 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-31 22:09:23,791 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:09:23,791 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-31 22:09:23,791 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-31 22:09:23,794 INFO L87 Difference]: Start difference. First operand 185 states and 235 transitions. Second operand has 5 states, 5 states have (on average 8.4) internal successors, (42), 5 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:09:24,008 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:09:24,008 INFO L93 Difference]: Finished difference Result 480 states and 612 transitions. [2024-10-31 22:09:24,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-31 22:09:24,009 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 5 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 65 [2024-10-31 22:09:24,009 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:09:24,011 INFO L225 Difference]: With dead ends: 480 [2024-10-31 22:09:24,011 INFO L226 Difference]: Without dead ends: 346 [2024-10-31 22:09:24,012 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2024-10-31 22:09:24,012 INFO L432 NwaCegarLoop]: 84 mSDtfsCounter, 152 mSDsluCounter, 113 mSDsCounter, 0 mSdLazyCounter, 119 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 152 SdHoareTripleChecker+Valid, 197 SdHoareTripleChecker+Invalid, 125 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 119 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-31 22:09:24,014 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [152 Valid, 197 Invalid, 125 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 119 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-31 22:09:24,015 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 346 states. [2024-10-31 22:09:24,028 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 346 to 227. [2024-10-31 22:09:24,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 227 states, 226 states have (on average 1.2743362831858407) internal successors, (288), 226 states have internal predecessors, (288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:09:24,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 227 states to 227 states and 288 transitions. [2024-10-31 22:09:24,030 INFO L78 Accepts]: Start accepts. Automaton has 227 states and 288 transitions. Word has length 65 [2024-10-31 22:09:24,030 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:09:24,031 INFO L471 AbstractCegarLoop]: Abstraction has 227 states and 288 transitions. [2024-10-31 22:09:24,031 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 5 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:09:24,031 INFO L276 IsEmpty]: Start isEmpty. Operand 227 states and 288 transitions. [2024-10-31 22:09:24,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-10-31 22:09:24,032 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:09:24,037 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:09:24,037 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-31 22:09:24,037 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr40ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 38 more)] === [2024-10-31 22:09:24,038 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:09:24,038 INFO L85 PathProgramCache]: Analyzing trace with hash -2110196596, now seen corresponding path program 1 times [2024-10-31 22:09:24,038 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:09:24,038 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [953239832] [2024-10-31 22:09:24,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:09:24,038 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:09:24,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:09:24,229 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 40 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-10-31 22:09:24,229 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:09:24,229 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [953239832] [2024-10-31 22:09:24,229 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [953239832] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:09:24,230 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:09:24,230 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-31 22:09:24,230 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [375958058] [2024-10-31 22:09:24,230 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:09:24,230 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-31 22:09:24,231 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:09:24,231 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-31 22:09:24,231 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-31 22:09:24,232 INFO L87 Difference]: Start difference. First operand 227 states and 288 transitions. Second operand has 4 states, 4 states have (on average 13.75) internal successors, (55), 4 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:09:24,322 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:09:24,322 INFO L93 Difference]: Finished difference Result 513 states and 651 transitions. [2024-10-31 22:09:24,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-31 22:09:24,323 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.75) internal successors, (55), 4 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 68 [2024-10-31 22:09:24,324 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:09:24,325 INFO L225 Difference]: With dead ends: 513 [2024-10-31 22:09:24,325 INFO L226 Difference]: Without dead ends: 337 [2024-10-31 22:09:24,326 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-31 22:09:24,326 INFO L432 NwaCegarLoop]: 154 mSDtfsCounter, 68 mSDsluCounter, 233 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 387 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-31 22:09:24,328 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [68 Valid, 387 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-31 22:09:24,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 337 states. [2024-10-31 22:09:24,338 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 337 to 249. [2024-10-31 22:09:24,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 249 states, 248 states have (on average 1.2983870967741935) internal successors, (322), 248 states have internal predecessors, (322), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:09:24,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 249 states to 249 states and 322 transitions. [2024-10-31 22:09:24,340 INFO L78 Accepts]: Start accepts. Automaton has 249 states and 322 transitions. Word has length 68 [2024-10-31 22:09:24,341 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:09:24,341 INFO L471 AbstractCegarLoop]: Abstraction has 249 states and 322 transitions. [2024-10-31 22:09:24,341 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.75) internal successors, (55), 4 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:09:24,341 INFO L276 IsEmpty]: Start isEmpty. Operand 249 states and 322 transitions. [2024-10-31 22:09:24,342 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2024-10-31 22:09:24,342 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:09:24,342 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:09:24,343 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-31 22:09:24,343 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr40ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 38 more)] === [2024-10-31 22:09:24,344 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:09:24,344 INFO L85 PathProgramCache]: Analyzing trace with hash -301960682, now seen corresponding path program 1 times [2024-10-31 22:09:24,344 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:09:24,344 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1314605108] [2024-10-31 22:09:24,345 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:09:24,345 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:09:24,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:09:24,577 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 57 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-10-31 22:09:24,577 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:09:24,578 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1314605108] [2024-10-31 22:09:24,578 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1314605108] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:09:24,578 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:09:24,578 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-31 22:09:24,578 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1719207609] [2024-10-31 22:09:24,579 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:09:24,579 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-31 22:09:24,579 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:09:24,580 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-31 22:09:24,580 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-10-31 22:09:24,580 INFO L87 Difference]: Start difference. First operand 249 states and 322 transitions. Second operand has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 6 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:09:24,906 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:09:24,907 INFO L93 Difference]: Finished difference Result 685 states and 891 transitions. [2024-10-31 22:09:24,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-31 22:09:24,907 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 6 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 74 [2024-10-31 22:09:24,908 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:09:24,911 INFO L225 Difference]: With dead ends: 685 [2024-10-31 22:09:24,911 INFO L226 Difference]: Without dead ends: 482 [2024-10-31 22:09:24,912 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2024-10-31 22:09:24,913 INFO L432 NwaCegarLoop]: 89 mSDtfsCounter, 162 mSDsluCounter, 143 mSDsCounter, 0 mSdLazyCounter, 191 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 162 SdHoareTripleChecker+Valid, 232 SdHoareTripleChecker+Invalid, 207 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 191 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-31 22:09:24,913 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [162 Valid, 232 Invalid, 207 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 191 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-31 22:09:24,915 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 482 states. [2024-10-31 22:09:24,932 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 482 to 407. [2024-10-31 22:09:24,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 407 states, 406 states have (on average 1.2857142857142858) internal successors, (522), 406 states have internal predecessors, (522), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:09:24,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 407 states to 407 states and 522 transitions. [2024-10-31 22:09:24,936 INFO L78 Accepts]: Start accepts. Automaton has 407 states and 522 transitions. Word has length 74 [2024-10-31 22:09:24,938 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:09:24,938 INFO L471 AbstractCegarLoop]: Abstraction has 407 states and 522 transitions. [2024-10-31 22:09:24,939 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 6 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:09:24,939 INFO L276 IsEmpty]: Start isEmpty. Operand 407 states and 522 transitions. [2024-10-31 22:09:24,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2024-10-31 22:09:24,941 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:09:24,942 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:09:24,942 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-10-31 22:09:24,942 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr40ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 38 more)] === [2024-10-31 22:09:24,943 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:09:24,943 INFO L85 PathProgramCache]: Analyzing trace with hash -326786310, now seen corresponding path program 1 times [2024-10-31 22:09:24,943 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:09:24,943 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1255763467] [2024-10-31 22:09:24,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:09:24,944 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:09:24,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:09:25,116 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 46 proven. 1 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2024-10-31 22:09:25,116 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:09:25,117 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1255763467] [2024-10-31 22:09:25,117 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1255763467] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-31 22:09:25,117 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1418396746] [2024-10-31 22:09:25,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:09:25,117 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:09:25,118 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d1eeb8-b3ce-4945-9570-06cbbf44f806/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:09:25,119 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d1eeb8-b3ce-4945-9570-06cbbf44f806/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 22:09:25,122 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d1eeb8-b3ce-4945-9570-06cbbf44f806/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-10-31 22:09:25,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:09:25,205 INFO L255 TraceCheckSpWp]: Trace formula consists of 174 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-31 22:09:25,207 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:09:25,308 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 46 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-10-31 22:09:25,309 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-31 22:09:25,309 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1418396746] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:09:25,309 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-31 22:09:25,309 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 4 [2024-10-31 22:09:25,309 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1859061334] [2024-10-31 22:09:25,309 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:09:25,310 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-31 22:09:25,310 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:09:25,310 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-31 22:09:25,310 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-31 22:09:25,310 INFO L87 Difference]: Start difference. First operand 407 states and 522 transitions. Second operand has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:09:25,427 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:09:25,427 INFO L93 Difference]: Finished difference Result 1047 states and 1341 transitions. [2024-10-31 22:09:25,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-31 22:09:25,428 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 74 [2024-10-31 22:09:25,428 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:09:25,431 INFO L225 Difference]: With dead ends: 1047 [2024-10-31 22:09:25,432 INFO L226 Difference]: Without dead ends: 649 [2024-10-31 22:09:25,433 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 76 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-31 22:09:25,433 INFO L432 NwaCegarLoop]: 106 mSDtfsCounter, 49 mSDsluCounter, 71 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 177 SdHoareTripleChecker+Invalid, 68 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-31 22:09:25,434 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [49 Valid, 177 Invalid, 68 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-31 22:09:25,435 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 649 states. [2024-10-31 22:09:25,451 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 649 to 555. [2024-10-31 22:09:25,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 555 states, 554 states have (on average 1.2761732851985559) internal successors, (707), 554 states have internal predecessors, (707), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:09:25,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 555 states to 555 states and 707 transitions. [2024-10-31 22:09:25,455 INFO L78 Accepts]: Start accepts. Automaton has 555 states and 707 transitions. Word has length 74 [2024-10-31 22:09:25,455 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:09:25,455 INFO L471 AbstractCegarLoop]: Abstraction has 555 states and 707 transitions. [2024-10-31 22:09:25,455 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:09:25,456 INFO L276 IsEmpty]: Start isEmpty. Operand 555 states and 707 transitions. [2024-10-31 22:09:25,457 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2024-10-31 22:09:25,457 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:09:25,457 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:09:25,479 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d1eeb8-b3ce-4945-9570-06cbbf44f806/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-10-31 22:09:25,657 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d1eeb8-b3ce-4945-9570-06cbbf44f806/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2024-10-31 22:09:25,658 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr40ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 38 more)] === [2024-10-31 22:09:25,658 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:09:25,658 INFO L85 PathProgramCache]: Analyzing trace with hash -1468144829, now seen corresponding path program 1 times [2024-10-31 22:09:25,658 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:09:25,658 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [957958330] [2024-10-31 22:09:25,659 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:09:25,659 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:09:25,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:09:25,843 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 57 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-10-31 22:09:25,844 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:09:25,844 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [957958330] [2024-10-31 22:09:25,844 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [957958330] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:09:25,844 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:09:25,845 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-31 22:09:25,845 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1153327794] [2024-10-31 22:09:25,845 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:09:25,848 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-31 22:09:25,848 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:09:25,849 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-31 22:09:25,849 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-10-31 22:09:25,849 INFO L87 Difference]: Start difference. First operand 555 states and 707 transitions. Second operand has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 6 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:09:26,279 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:09:26,279 INFO L93 Difference]: Finished difference Result 1345 states and 1704 transitions. [2024-10-31 22:09:26,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-31 22:09:26,282 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 6 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 74 [2024-10-31 22:09:26,282 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:09:26,285 INFO L225 Difference]: With dead ends: 1345 [2024-10-31 22:09:26,285 INFO L226 Difference]: Without dead ends: 794 [2024-10-31 22:09:26,286 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2024-10-31 22:09:26,289 INFO L432 NwaCegarLoop]: 80 mSDtfsCounter, 156 mSDsluCounter, 269 mSDsCounter, 0 mSdLazyCounter, 212 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 156 SdHoareTripleChecker+Valid, 349 SdHoareTripleChecker+Invalid, 226 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 212 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-31 22:09:26,289 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [156 Valid, 349 Invalid, 226 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 212 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-31 22:09:26,291 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 794 states. [2024-10-31 22:09:26,314 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 794 to 696. [2024-10-31 22:09:26,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 696 states, 695 states have (on average 1.2618705035971223) internal successors, (877), 695 states have internal predecessors, (877), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:09:26,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 696 states to 696 states and 877 transitions. [2024-10-31 22:09:26,319 INFO L78 Accepts]: Start accepts. Automaton has 696 states and 877 transitions. Word has length 74 [2024-10-31 22:09:26,320 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:09:26,320 INFO L471 AbstractCegarLoop]: Abstraction has 696 states and 877 transitions. [2024-10-31 22:09:26,320 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 6 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:09:26,320 INFO L276 IsEmpty]: Start isEmpty. Operand 696 states and 877 transitions. [2024-10-31 22:09:26,322 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2024-10-31 22:09:26,322 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:09:26,322 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:09:26,322 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-10-31 22:09:26,324 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr40ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 38 more)] === [2024-10-31 22:09:26,324 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:09:26,324 INFO L85 PathProgramCache]: Analyzing trace with hash 2112281364, now seen corresponding path program 1 times [2024-10-31 22:09:26,324 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:09:26,325 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2017745736] [2024-10-31 22:09:26,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:09:26,325 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:09:26,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:09:26,570 INFO L134 CoverageAnalysis]: Checked inductivity of 76 backedges. 56 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2024-10-31 22:09:26,570 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:09:26,571 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2017745736] [2024-10-31 22:09:26,571 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2017745736] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:09:26,571 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:09:26,571 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-31 22:09:26,571 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1708016115] [2024-10-31 22:09:26,571 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:09:26,572 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-31 22:09:26,572 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:09:26,574 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-31 22:09:26,574 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-10-31 22:09:26,574 INFO L87 Difference]: Start difference. First operand 696 states and 877 transitions. Second operand has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 7 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:09:27,021 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:09:27,022 INFO L93 Difference]: Finished difference Result 1731 states and 2171 transitions. [2024-10-31 22:09:27,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-10-31 22:09:27,023 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 7 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 80 [2024-10-31 22:09:27,023 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:09:27,026 INFO L225 Difference]: With dead ends: 1731 [2024-10-31 22:09:27,027 INFO L226 Difference]: Without dead ends: 961 [2024-10-31 22:09:27,028 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=51, Invalid=81, Unknown=0, NotChecked=0, Total=132 [2024-10-31 22:09:27,029 INFO L432 NwaCegarLoop]: 95 mSDtfsCounter, 198 mSDsluCounter, 224 mSDsCounter, 0 mSdLazyCounter, 310 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 198 SdHoareTripleChecker+Valid, 319 SdHoareTripleChecker+Invalid, 331 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 310 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-31 22:09:27,029 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [198 Valid, 319 Invalid, 331 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 310 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-31 22:09:27,031 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 961 states. [2024-10-31 22:09:27,060 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 961 to 826. [2024-10-31 22:09:27,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 826 states, 825 states have (on average 1.2642424242424242) internal successors, (1043), 825 states have internal predecessors, (1043), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:09:27,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 826 states to 826 states and 1043 transitions. [2024-10-31 22:09:27,064 INFO L78 Accepts]: Start accepts. Automaton has 826 states and 1043 transitions. Word has length 80 [2024-10-31 22:09:27,065 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:09:27,065 INFO L471 AbstractCegarLoop]: Abstraction has 826 states and 1043 transitions. [2024-10-31 22:09:27,065 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 7 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:09:27,065 INFO L276 IsEmpty]: Start isEmpty. Operand 826 states and 1043 transitions. [2024-10-31 22:09:27,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2024-10-31 22:09:27,067 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:09:27,067 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:09:27,068 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-10-31 22:09:27,068 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr40ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 38 more)] === [2024-10-31 22:09:27,068 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:09:27,068 INFO L85 PathProgramCache]: Analyzing trace with hash 1262585566, now seen corresponding path program 1 times [2024-10-31 22:09:27,069 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:09:27,069 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [523603300] [2024-10-31 22:09:27,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:09:27,069 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:09:27,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:09:27,299 INFO L134 CoverageAnalysis]: Checked inductivity of 76 backedges. 39 proven. 7 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-10-31 22:09:27,299 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:09:27,299 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [523603300] [2024-10-31 22:09:27,299 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [523603300] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-31 22:09:27,300 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1479009236] [2024-10-31 22:09:27,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:09:27,300 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:09:27,300 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d1eeb8-b3ce-4945-9570-06cbbf44f806/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:09:27,305 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d1eeb8-b3ce-4945-9570-06cbbf44f806/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 22:09:27,319 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d1eeb8-b3ce-4945-9570-06cbbf44f806/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-10-31 22:09:27,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:09:27,439 INFO L255 TraceCheckSpWp]: Trace formula consists of 186 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-10-31 22:09:27,441 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:09:27,580 INFO L134 CoverageAnalysis]: Checked inductivity of 76 backedges. 26 proven. 43 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-10-31 22:09:27,580 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-31 22:09:27,719 INFO L134 CoverageAnalysis]: Checked inductivity of 76 backedges. 39 proven. 7 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-10-31 22:09:27,720 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1479009236] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-31 22:09:27,721 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-31 22:09:27,721 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 6, 4] total 9 [2024-10-31 22:09:27,721 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1559908404] [2024-10-31 22:09:27,721 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-31 22:09:27,722 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-10-31 22:09:27,722 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:09:27,723 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-10-31 22:09:27,723 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2024-10-31 22:09:27,724 INFO L87 Difference]: Start difference. First operand 826 states and 1043 transitions. Second operand has 10 states, 9 states have (on average 12.444444444444445) internal successors, (112), 10 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:09:30,130 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:09:30,130 INFO L93 Difference]: Finished difference Result 4972 states and 6140 transitions. [2024-10-31 22:09:30,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2024-10-31 22:09:30,131 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 12.444444444444445) internal successors, (112), 10 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 80 [2024-10-31 22:09:30,132 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:09:30,145 INFO L225 Difference]: With dead ends: 4972 [2024-10-31 22:09:30,145 INFO L226 Difference]: Without dead ends: 4016 [2024-10-31 22:09:30,149 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 240 GetRequests, 185 SyntacticMatches, 0 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1013 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=592, Invalid=2600, Unknown=0, NotChecked=0, Total=3192 [2024-10-31 22:09:30,150 INFO L432 NwaCegarLoop]: 298 mSDtfsCounter, 842 mSDsluCounter, 1172 mSDsCounter, 0 mSdLazyCounter, 1048 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 842 SdHoareTripleChecker+Valid, 1470 SdHoareTripleChecker+Invalid, 1077 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 1048 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-10-31 22:09:30,150 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [842 Valid, 1470 Invalid, 1077 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 1048 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-10-31 22:09:30,155 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4016 states. [2024-10-31 22:09:30,226 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4016 to 1079. [2024-10-31 22:09:30,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1079 states, 1078 states have (on average 1.4063079777365493) internal successors, (1516), 1078 states have internal predecessors, (1516), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:09:30,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1079 states to 1079 states and 1516 transitions. [2024-10-31 22:09:30,232 INFO L78 Accepts]: Start accepts. Automaton has 1079 states and 1516 transitions. Word has length 80 [2024-10-31 22:09:30,233 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:09:30,233 INFO L471 AbstractCegarLoop]: Abstraction has 1079 states and 1516 transitions. [2024-10-31 22:09:30,233 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 12.444444444444445) internal successors, (112), 10 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:09:30,233 INFO L276 IsEmpty]: Start isEmpty. Operand 1079 states and 1516 transitions. [2024-10-31 22:09:30,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2024-10-31 22:09:30,235 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:09:30,235 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:09:30,256 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d1eeb8-b3ce-4945-9570-06cbbf44f806/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-10-31 22:09:30,439 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d1eeb8-b3ce-4945-9570-06cbbf44f806/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2024-10-31 22:09:30,439 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr40ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 38 more)] === [2024-10-31 22:09:30,440 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:09:30,440 INFO L85 PathProgramCache]: Analyzing trace with hash 1514248837, now seen corresponding path program 1 times [2024-10-31 22:09:30,441 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:09:30,441 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1223714761] [2024-10-31 22:09:30,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:09:30,441 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:09:30,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:09:30,671 INFO L134 CoverageAnalysis]: Checked inductivity of 76 backedges. 58 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-10-31 22:09:30,671 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:09:30,671 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1223714761] [2024-10-31 22:09:30,671 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1223714761] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:09:30,671 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:09:30,672 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-31 22:09:30,672 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2032679356] [2024-10-31 22:09:30,672 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:09:30,672 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-31 22:09:30,673 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:09:30,673 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-31 22:09:30,673 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-10-31 22:09:30,673 INFO L87 Difference]: Start difference. First operand 1079 states and 1516 transitions. Second operand has 7 states, 7 states have (on average 9.857142857142858) internal successors, (69), 7 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:09:31,129 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:09:31,130 INFO L93 Difference]: Finished difference Result 2425 states and 3400 transitions. [2024-10-31 22:09:31,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-10-31 22:09:31,130 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.857142857142858) internal successors, (69), 7 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 80 [2024-10-31 22:09:31,131 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:09:31,135 INFO L225 Difference]: With dead ends: 2425 [2024-10-31 22:09:31,135 INFO L226 Difference]: Without dead ends: 1331 [2024-10-31 22:09:31,137 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=51, Invalid=81, Unknown=0, NotChecked=0, Total=132 [2024-10-31 22:09:31,137 INFO L432 NwaCegarLoop]: 85 mSDtfsCounter, 254 mSDsluCounter, 221 mSDsCounter, 0 mSdLazyCounter, 275 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 254 SdHoareTripleChecker+Valid, 306 SdHoareTripleChecker+Invalid, 301 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 275 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-31 22:09:31,138 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [254 Valid, 306 Invalid, 301 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 275 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-31 22:09:31,140 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1331 states. [2024-10-31 22:09:31,187 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1331 to 1239. [2024-10-31 22:09:31,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1239 states, 1238 states have (on average 1.4103392568659128) internal successors, (1746), 1238 states have internal predecessors, (1746), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:09:31,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1239 states to 1239 states and 1746 transitions. [2024-10-31 22:09:31,194 INFO L78 Accepts]: Start accepts. Automaton has 1239 states and 1746 transitions. Word has length 80 [2024-10-31 22:09:31,194 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:09:31,194 INFO L471 AbstractCegarLoop]: Abstraction has 1239 states and 1746 transitions. [2024-10-31 22:09:31,194 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.857142857142858) internal successors, (69), 7 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:09:31,195 INFO L276 IsEmpty]: Start isEmpty. Operand 1239 states and 1746 transitions. [2024-10-31 22:09:31,196 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2024-10-31 22:09:31,197 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:09:31,197 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:09:31,197 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-10-31 22:09:31,197 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr40ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 38 more)] === [2024-10-31 22:09:31,198 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:09:31,198 INFO L85 PathProgramCache]: Analyzing trace with hash -468213532, now seen corresponding path program 1 times [2024-10-31 22:09:31,198 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:09:31,198 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [98409102] [2024-10-31 22:09:31,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:09:31,199 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:09:31,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:09:31,459 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2024-10-31 22:09:31,460 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:09:31,460 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [98409102] [2024-10-31 22:09:31,460 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [98409102] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:09:31,460 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:09:31,460 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-31 22:09:31,461 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [306563845] [2024-10-31 22:09:31,461 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:09:31,461 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:09:31,461 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:09:31,462 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:09:31,462 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:09:31,462 INFO L87 Difference]: Start difference. First operand 1239 states and 1746 transitions. Second operand has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:09:31,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:09:31,499 INFO L93 Difference]: Finished difference Result 2433 states and 3436 transitions. [2024-10-31 22:09:31,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:09:31,500 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 86 [2024-10-31 22:09:31,500 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:09:31,504 INFO L225 Difference]: With dead ends: 2433 [2024-10-31 22:09:31,504 INFO L226 Difference]: Without dead ends: 1213 [2024-10-31 22:09:31,506 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:09:31,506 INFO L432 NwaCegarLoop]: 92 mSDtfsCounter, 92 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 93 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-31 22:09:31,507 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [92 Valid, 93 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-31 22:09:31,508 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1213 states. [2024-10-31 22:09:31,554 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1213 to 1213. [2024-10-31 22:09:31,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1213 states, 1212 states have (on average 1.4125412541254125) internal successors, (1712), 1212 states have internal predecessors, (1712), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:09:31,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1213 states to 1213 states and 1712 transitions. [2024-10-31 22:09:31,561 INFO L78 Accepts]: Start accepts. Automaton has 1213 states and 1712 transitions. Word has length 86 [2024-10-31 22:09:31,561 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:09:31,561 INFO L471 AbstractCegarLoop]: Abstraction has 1213 states and 1712 transitions. [2024-10-31 22:09:31,561 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:09:31,562 INFO L276 IsEmpty]: Start isEmpty. Operand 1213 states and 1712 transitions. [2024-10-31 22:09:31,564 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2024-10-31 22:09:31,565 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:09:31,566 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:09:31,566 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-10-31 22:09:31,566 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr40ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 38 more)] === [2024-10-31 22:09:31,566 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:09:31,567 INFO L85 PathProgramCache]: Analyzing trace with hash 1893852281, now seen corresponding path program 1 times [2024-10-31 22:09:31,567 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:09:31,567 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [753972117] [2024-10-31 22:09:31,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:09:31,567 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:09:31,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:09:31,979 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 30 proven. 28 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-10-31 22:09:31,979 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:09:31,980 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [753972117] [2024-10-31 22:09:31,980 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [753972117] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-31 22:09:31,980 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1638921022] [2024-10-31 22:09:31,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:09:31,980 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:09:31,981 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d1eeb8-b3ce-4945-9570-06cbbf44f806/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:09:31,983 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d1eeb8-b3ce-4945-9570-06cbbf44f806/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 22:09:31,984 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d1eeb8-b3ce-4945-9570-06cbbf44f806/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-10-31 22:09:32,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:09:32,100 INFO L255 TraceCheckSpWp]: Trace formula consists of 194 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-10-31 22:09:32,102 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:09:32,192 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2024-10-31 22:09:32,196 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-31 22:09:32,196 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1638921022] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:09:32,196 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-31 22:09:32,196 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [6] total 10 [2024-10-31 22:09:32,196 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [184588861] [2024-10-31 22:09:32,197 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:09:32,197 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-31 22:09:32,197 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:09:32,197 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-31 22:09:32,197 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2024-10-31 22:09:32,198 INFO L87 Difference]: Start difference. First operand 1213 states and 1712 transitions. Second operand has 5 states, 5 states have (on average 11.8) internal successors, (59), 5 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:09:32,437 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:09:32,437 INFO L93 Difference]: Finished difference Result 3739 states and 5287 transitions. [2024-10-31 22:09:32,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-31 22:09:32,438 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 5 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 86 [2024-10-31 22:09:32,438 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:09:32,451 INFO L225 Difference]: With dead ends: 3739 [2024-10-31 22:09:32,451 INFO L226 Difference]: Without dead ends: 3543 [2024-10-31 22:09:32,453 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 83 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2024-10-31 22:09:32,453 INFO L432 NwaCegarLoop]: 145 mSDtfsCounter, 126 mSDsluCounter, 212 mSDsCounter, 0 mSdLazyCounter, 88 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 126 SdHoareTripleChecker+Valid, 357 SdHoareTripleChecker+Invalid, 91 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 88 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-31 22:09:32,454 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [126 Valid, 357 Invalid, 91 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 88 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-31 22:09:32,459 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3543 states. [2024-10-31 22:09:32,586 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3543 to 1872. [2024-10-31 22:09:32,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1872 states, 1871 states have (on average 1.4270443613041155) internal successors, (2670), 1871 states have internal predecessors, (2670), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:09:32,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1872 states to 1872 states and 2670 transitions. [2024-10-31 22:09:32,596 INFO L78 Accepts]: Start accepts. Automaton has 1872 states and 2670 transitions. Word has length 86 [2024-10-31 22:09:32,596 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:09:32,596 INFO L471 AbstractCegarLoop]: Abstraction has 1872 states and 2670 transitions. [2024-10-31 22:09:32,596 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 5 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:09:32,597 INFO L276 IsEmpty]: Start isEmpty. Operand 1872 states and 2670 transitions. [2024-10-31 22:09:32,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2024-10-31 22:09:32,599 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:09:32,599 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:09:32,620 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d1eeb8-b3ce-4945-9570-06cbbf44f806/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-10-31 22:09:32,800 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d1eeb8-b3ce-4945-9570-06cbbf44f806/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2024-10-31 22:09:32,800 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr40ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 38 more)] === [2024-10-31 22:09:32,800 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:09:32,801 INFO L85 PathProgramCache]: Analyzing trace with hash -1153171285, now seen corresponding path program 1 times [2024-10-31 22:09:32,801 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:09:32,801 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [541420453] [2024-10-31 22:09:32,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:09:32,801 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:09:32,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:09:33,051 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2024-10-31 22:09:33,051 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:09:33,051 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [541420453] [2024-10-31 22:09:33,052 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [541420453] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:09:33,052 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:09:33,052 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-31 22:09:33,052 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [169126349] [2024-10-31 22:09:33,052 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:09:33,053 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-31 22:09:33,054 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:09:33,054 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-31 22:09:33,054 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-31 22:09:33,054 INFO L87 Difference]: Start difference. First operand 1872 states and 2670 transitions. Second operand has 5 states, 5 states have (on average 12.6) internal successors, (63), 5 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:09:33,298 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:09:33,298 INFO L93 Difference]: Finished difference Result 4733 states and 6415 transitions. [2024-10-31 22:09:33,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-31 22:09:33,299 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 5 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 89 [2024-10-31 22:09:33,299 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:09:33,308 INFO L225 Difference]: With dead ends: 4733 [2024-10-31 22:09:33,308 INFO L226 Difference]: Without dead ends: 2892 [2024-10-31 22:09:33,310 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2024-10-31 22:09:33,311 INFO L432 NwaCegarLoop]: 136 mSDtfsCounter, 246 mSDsluCounter, 202 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 246 SdHoareTripleChecker+Valid, 338 SdHoareTripleChecker+Invalid, 78 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-31 22:09:33,311 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [246 Valid, 338 Invalid, 78 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-31 22:09:33,314 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2892 states. [2024-10-31 22:09:33,415 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2892 to 2142. [2024-10-31 22:09:33,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2142 states, 2141 states have (on average 1.2993928070994862) internal successors, (2782), 2141 states have internal predecessors, (2782), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:09:33,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2142 states to 2142 states and 2782 transitions. [2024-10-31 22:09:33,427 INFO L78 Accepts]: Start accepts. Automaton has 2142 states and 2782 transitions. Word has length 89 [2024-10-31 22:09:33,428 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:09:33,428 INFO L471 AbstractCegarLoop]: Abstraction has 2142 states and 2782 transitions. [2024-10-31 22:09:33,428 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 5 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:09:33,428 INFO L276 IsEmpty]: Start isEmpty. Operand 2142 states and 2782 transitions. [2024-10-31 22:09:33,430 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2024-10-31 22:09:33,431 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:09:33,431 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:09:33,431 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-10-31 22:09:33,432 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr40ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 38 more)] === [2024-10-31 22:09:33,432 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:09:33,433 INFO L85 PathProgramCache]: Analyzing trace with hash 944742117, now seen corresponding path program 1 times [2024-10-31 22:09:33,433 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:09:33,433 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [289686115] [2024-10-31 22:09:33,433 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:09:33,433 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:09:33,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:09:33,851 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 39 proven. 33 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-10-31 22:09:33,851 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:09:33,851 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [289686115] [2024-10-31 22:09:33,851 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [289686115] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-31 22:09:33,852 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [670017211] [2024-10-31 22:09:33,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:09:33,852 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:09:33,852 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d1eeb8-b3ce-4945-9570-06cbbf44f806/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:09:33,854 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d1eeb8-b3ce-4945-9570-06cbbf44f806/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 22:09:33,856 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d1eeb8-b3ce-4945-9570-06cbbf44f806/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-10-31 22:09:34,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:09:34,050 INFO L255 TraceCheckSpWp]: Trace formula consists of 187 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-10-31 22:09:34,054 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:09:34,157 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2024-10-31 22:09:34,157 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-31 22:09:34,157 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [670017211] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:09:34,158 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-31 22:09:34,158 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [6] total 11 [2024-10-31 22:09:34,158 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1716393095] [2024-10-31 22:09:34,158 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:09:34,158 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-31 22:09:34,158 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:09:34,160 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-31 22:09:34,160 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2024-10-31 22:09:34,161 INFO L87 Difference]: Start difference. First operand 2142 states and 2782 transitions. Second operand has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 6 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:09:34,553 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:09:34,554 INFO L93 Difference]: Finished difference Result 5572 states and 7155 transitions. [2024-10-31 22:09:34,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-31 22:09:34,554 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 6 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 89 [2024-10-31 22:09:34,554 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:09:34,570 INFO L225 Difference]: With dead ends: 5572 [2024-10-31 22:09:34,571 INFO L226 Difference]: Without dead ends: 5354 [2024-10-31 22:09:34,573 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 85 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2024-10-31 22:09:34,574 INFO L432 NwaCegarLoop]: 168 mSDtfsCounter, 161 mSDsluCounter, 463 mSDsCounter, 0 mSdLazyCounter, 204 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 161 SdHoareTripleChecker+Valid, 631 SdHoareTripleChecker+Invalid, 207 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 204 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-31 22:09:34,574 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [161 Valid, 631 Invalid, 207 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 204 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-31 22:09:34,584 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5354 states. [2024-10-31 22:09:34,723 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5354 to 2142. [2024-10-31 22:09:34,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2142 states, 2141 states have (on average 1.2993928070994862) internal successors, (2782), 2141 states have internal predecessors, (2782), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:09:34,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2142 states to 2142 states and 2782 transitions. [2024-10-31 22:09:34,733 INFO L78 Accepts]: Start accepts. Automaton has 2142 states and 2782 transitions. Word has length 89 [2024-10-31 22:09:34,733 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:09:34,734 INFO L471 AbstractCegarLoop]: Abstraction has 2142 states and 2782 transitions. [2024-10-31 22:09:34,734 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 6 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:09:34,734 INFO L276 IsEmpty]: Start isEmpty. Operand 2142 states and 2782 transitions. [2024-10-31 22:09:34,737 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2024-10-31 22:09:34,737 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:09:34,737 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:09:34,758 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d1eeb8-b3ce-4945-9570-06cbbf44f806/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-10-31 22:09:34,942 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d1eeb8-b3ce-4945-9570-06cbbf44f806/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:09:34,943 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr40ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 38 more)] === [2024-10-31 22:09:34,943 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:09:34,943 INFO L85 PathProgramCache]: Analyzing trace with hash 786075514, now seen corresponding path program 1 times [2024-10-31 22:09:34,944 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:09:34,944 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1218439862] [2024-10-31 22:09:34,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:09:34,944 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:09:34,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:09:35,186 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 50 proven. 3 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2024-10-31 22:09:35,187 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:09:35,187 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1218439862] [2024-10-31 22:09:35,187 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1218439862] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-31 22:09:35,187 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [993794660] [2024-10-31 22:09:35,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:09:35,187 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:09:35,188 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d1eeb8-b3ce-4945-9570-06cbbf44f806/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:09:35,190 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d1eeb8-b3ce-4945-9570-06cbbf44f806/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 22:09:35,191 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d1eeb8-b3ce-4945-9570-06cbbf44f806/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-10-31 22:09:35,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:09:35,271 INFO L255 TraceCheckSpWp]: Trace formula consists of 197 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-10-31 22:09:35,273 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:09:35,338 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 49 proven. 3 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2024-10-31 22:09:35,339 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-31 22:09:35,524 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 40 proven. 28 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2024-10-31 22:09:35,525 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [993794660] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-31 22:09:35,525 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-31 22:09:35,525 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4, 6] total 11 [2024-10-31 22:09:35,525 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [984768891] [2024-10-31 22:09:35,525 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-31 22:09:35,526 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-10-31 22:09:35,526 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:09:35,526 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-10-31 22:09:35,526 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2024-10-31 22:09:35,527 INFO L87 Difference]: Start difference. First operand 2142 states and 2782 transitions. Second operand has 11 states, 11 states have (on average 13.272727272727273) internal successors, (146), 11 states have internal predecessors, (146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:09:35,944 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:09:35,945 INFO L93 Difference]: Finished difference Result 3490 states and 4527 transitions. [2024-10-31 22:09:35,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-31 22:09:35,945 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 13.272727272727273) internal successors, (146), 11 states have internal predecessors, (146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 89 [2024-10-31 22:09:35,946 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:09:35,950 INFO L225 Difference]: With dead ends: 3490 [2024-10-31 22:09:35,950 INFO L226 Difference]: Without dead ends: 1371 [2024-10-31 22:09:35,953 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 189 GetRequests, 174 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=83, Invalid=189, Unknown=0, NotChecked=0, Total=272 [2024-10-31 22:09:35,954 INFO L432 NwaCegarLoop]: 60 mSDtfsCounter, 234 mSDsluCounter, 195 mSDsCounter, 0 mSdLazyCounter, 173 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 234 SdHoareTripleChecker+Valid, 255 SdHoareTripleChecker+Invalid, 218 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 173 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-31 22:09:35,954 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [234 Valid, 255 Invalid, 218 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 173 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-31 22:09:35,956 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1371 states. [2024-10-31 22:09:36,022 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1371 to 1105. [2024-10-31 22:09:36,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1105 states, 1104 states have (on average 1.1748188405797102) internal successors, (1297), 1104 states have internal predecessors, (1297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:09:36,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1105 states to 1105 states and 1297 transitions. [2024-10-31 22:09:36,028 INFO L78 Accepts]: Start accepts. Automaton has 1105 states and 1297 transitions. Word has length 89 [2024-10-31 22:09:36,028 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:09:36,028 INFO L471 AbstractCegarLoop]: Abstraction has 1105 states and 1297 transitions. [2024-10-31 22:09:36,029 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 13.272727272727273) internal successors, (146), 11 states have internal predecessors, (146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:09:36,029 INFO L276 IsEmpty]: Start isEmpty. Operand 1105 states and 1297 transitions. [2024-10-31 22:09:36,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2024-10-31 22:09:36,030 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:09:36,031 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:09:36,051 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d1eeb8-b3ce-4945-9570-06cbbf44f806/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2024-10-31 22:09:36,235 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d1eeb8-b3ce-4945-9570-06cbbf44f806/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:09:36,236 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr40ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 38 more)] === [2024-10-31 22:09:36,236 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:09:36,237 INFO L85 PathProgramCache]: Analyzing trace with hash 1857009734, now seen corresponding path program 1 times [2024-10-31 22:09:36,240 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:09:36,240 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [390089610] [2024-10-31 22:09:36,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:09:36,244 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:09:36,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:09:36,500 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 54 proven. 3 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2024-10-31 22:09:36,500 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:09:36,500 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [390089610] [2024-10-31 22:09:36,500 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [390089610] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-31 22:09:36,500 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [241674934] [2024-10-31 22:09:36,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:09:36,501 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:09:36,501 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d1eeb8-b3ce-4945-9570-06cbbf44f806/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:09:36,504 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d1eeb8-b3ce-4945-9570-06cbbf44f806/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 22:09:36,505 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d1eeb8-b3ce-4945-9570-06cbbf44f806/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-10-31 22:09:36,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:09:36,591 INFO L255 TraceCheckSpWp]: Trace formula consists of 197 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-10-31 22:09:36,593 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:09:36,691 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 54 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2024-10-31 22:09:36,691 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-31 22:09:36,692 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [241674934] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:09:36,692 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-31 22:09:36,692 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 7 [2024-10-31 22:09:36,692 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [276117628] [2024-10-31 22:09:36,693 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:09:36,693 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-31 22:09:36,693 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:09:36,694 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-31 22:09:36,694 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2024-10-31 22:09:36,695 INFO L87 Difference]: Start difference. First operand 1105 states and 1297 transitions. Second operand has 4 states, 4 states have (on average 18.0) internal successors, (72), 4 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:09:36,892 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:09:36,892 INFO L93 Difference]: Finished difference Result 1759 states and 2056 transitions. [2024-10-31 22:09:36,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-31 22:09:36,893 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.0) internal successors, (72), 4 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 89 [2024-10-31 22:09:36,893 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:09:36,898 INFO L225 Difference]: With dead ends: 1759 [2024-10-31 22:09:36,898 INFO L226 Difference]: Without dead ends: 1548 [2024-10-31 22:09:36,899 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 90 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2024-10-31 22:09:36,900 INFO L432 NwaCegarLoop]: 77 mSDtfsCounter, 56 mSDsluCounter, 89 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 166 SdHoareTripleChecker+Invalid, 63 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-31 22:09:36,900 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 166 Invalid, 63 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-31 22:09:36,902 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1548 states. [2024-10-31 22:09:36,972 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1548 to 1451. [2024-10-31 22:09:36,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1451 states, 1450 states have (on average 1.1779310344827587) internal successors, (1708), 1450 states have internal predecessors, (1708), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:09:36,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1451 states to 1451 states and 1708 transitions. [2024-10-31 22:09:36,979 INFO L78 Accepts]: Start accepts. Automaton has 1451 states and 1708 transitions. Word has length 89 [2024-10-31 22:09:36,979 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:09:36,979 INFO L471 AbstractCegarLoop]: Abstraction has 1451 states and 1708 transitions. [2024-10-31 22:09:36,979 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.0) internal successors, (72), 4 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:09:36,980 INFO L276 IsEmpty]: Start isEmpty. Operand 1451 states and 1708 transitions. [2024-10-31 22:09:36,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2024-10-31 22:09:36,981 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:09:36,982 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:09:37,002 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d1eeb8-b3ce-4945-9570-06cbbf44f806/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-10-31 22:09:37,183 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d1eeb8-b3ce-4945-9570-06cbbf44f806/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:09:37,183 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr40ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 38 more)] === [2024-10-31 22:09:37,184 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:09:37,184 INFO L85 PathProgramCache]: Analyzing trace with hash 114731745, now seen corresponding path program 1 times [2024-10-31 22:09:37,185 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:09:37,185 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [898444221] [2024-10-31 22:09:37,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:09:37,185 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:09:37,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:09:37,542 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 39 proven. 33 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-10-31 22:09:37,542 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:09:37,542 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [898444221] [2024-10-31 22:09:37,542 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [898444221] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-31 22:09:37,543 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [150353075] [2024-10-31 22:09:37,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:09:37,543 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:09:37,543 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d1eeb8-b3ce-4945-9570-06cbbf44f806/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:09:37,545 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d1eeb8-b3ce-4945-9570-06cbbf44f806/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 22:09:37,547 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d1eeb8-b3ce-4945-9570-06cbbf44f806/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-10-31 22:09:37,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:09:37,703 INFO L255 TraceCheckSpWp]: Trace formula consists of 191 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-10-31 22:09:37,706 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:09:37,917 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-10-31 22:09:37,917 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-31 22:09:38,317 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-10-31 22:09:38,318 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [150353075] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-31 22:09:38,318 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-31 22:09:38,318 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 7, 8] total 18 [2024-10-31 22:09:38,318 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2137664674] [2024-10-31 22:09:38,319 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-31 22:09:38,319 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-10-31 22:09:38,319 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:09:38,320 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-10-31 22:09:38,320 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=261, Unknown=0, NotChecked=0, Total=306 [2024-10-31 22:09:38,321 INFO L87 Difference]: Start difference. First operand 1451 states and 1708 transitions. Second operand has 18 states, 18 states have (on average 11.333333333333334) internal successors, (204), 18 states have internal predecessors, (204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:09:40,417 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:09:40,418 INFO L93 Difference]: Finished difference Result 3062 states and 3530 transitions. [2024-10-31 22:09:40,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2024-10-31 22:09:40,418 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 11.333333333333334) internal successors, (204), 18 states have internal predecessors, (204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2024-10-31 22:09:40,419 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:09:40,430 INFO L225 Difference]: With dead ends: 3062 [2024-10-31 22:09:40,430 INFO L226 Difference]: Without dead ends: 2658 [2024-10-31 22:09:40,436 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 222 GetRequests, 170 SyntacticMatches, 0 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 594 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=611, Invalid=2251, Unknown=0, NotChecked=0, Total=2862 [2024-10-31 22:09:40,437 INFO L432 NwaCegarLoop]: 260 mSDtfsCounter, 771 mSDsluCounter, 2277 mSDsCounter, 0 mSdLazyCounter, 830 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 771 SdHoareTripleChecker+Valid, 2537 SdHoareTripleChecker+Invalid, 842 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 830 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-10-31 22:09:40,439 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [771 Valid, 2537 Invalid, 842 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 830 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-10-31 22:09:40,441 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2658 states. [2024-10-31 22:09:40,504 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2658 to 943. [2024-10-31 22:09:40,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 943 states, 942 states have (on average 1.134819532908705) internal successors, (1069), 942 states have internal predecessors, (1069), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:09:40,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 943 states to 943 states and 1069 transitions. [2024-10-31 22:09:40,510 INFO L78 Accepts]: Start accepts. Automaton has 943 states and 1069 transitions. Word has length 91 [2024-10-31 22:09:40,510 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:09:40,511 INFO L471 AbstractCegarLoop]: Abstraction has 943 states and 1069 transitions. [2024-10-31 22:09:40,511 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 11.333333333333334) internal successors, (204), 18 states have internal predecessors, (204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:09:40,511 INFO L276 IsEmpty]: Start isEmpty. Operand 943 states and 1069 transitions. [2024-10-31 22:09:40,512 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2024-10-31 22:09:40,513 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:09:40,513 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:09:40,534 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d1eeb8-b3ce-4945-9570-06cbbf44f806/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2024-10-31 22:09:40,717 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d1eeb8-b3ce-4945-9570-06cbbf44f806/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2024-10-31 22:09:40,717 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr40ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 38 more)] === [2024-10-31 22:09:40,718 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:09:40,718 INFO L85 PathProgramCache]: Analyzing trace with hash 1314407751, now seen corresponding path program 1 times [2024-10-31 22:09:40,718 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:09:40,718 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [879094847] [2024-10-31 22:09:40,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:09:40,719 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:09:40,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:09:40,937 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 51 proven. 7 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-10-31 22:09:40,938 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:09:40,938 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [879094847] [2024-10-31 22:09:40,938 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [879094847] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-31 22:09:40,938 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [271501233] [2024-10-31 22:09:40,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:09:40,939 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:09:40,939 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d1eeb8-b3ce-4945-9570-06cbbf44f806/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:09:40,941 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d1eeb8-b3ce-4945-9570-06cbbf44f806/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 22:09:40,942 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d1eeb8-b3ce-4945-9570-06cbbf44f806/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-10-31 22:09:41,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:09:41,064 INFO L255 TraceCheckSpWp]: Trace formula consists of 202 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-10-31 22:09:41,066 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:09:41,206 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 51 proven. 4 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2024-10-31 22:09:41,206 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-31 22:09:41,526 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 44 proven. 31 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2024-10-31 22:09:41,526 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [271501233] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-31 22:09:41,526 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-31 22:09:41,527 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6, 9] total 17 [2024-10-31 22:09:41,527 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1706841574] [2024-10-31 22:09:41,538 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-31 22:09:41,539 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-10-31 22:09:41,539 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:09:41,540 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-10-31 22:09:41,540 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=182, Unknown=0, NotChecked=0, Total=272 [2024-10-31 22:09:41,540 INFO L87 Difference]: Start difference. First operand 943 states and 1069 transitions. Second operand has 17 states, 17 states have (on average 9.352941176470589) internal successors, (159), 17 states have internal predecessors, (159), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:09:43,280 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:09:43,280 INFO L93 Difference]: Finished difference Result 2840 states and 3234 transitions. [2024-10-31 22:09:43,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2024-10-31 22:09:43,281 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 9.352941176470589) internal successors, (159), 17 states have internal predecessors, (159), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 92 [2024-10-31 22:09:43,281 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:09:43,290 INFO L225 Difference]: With dead ends: 2840 [2024-10-31 22:09:43,290 INFO L226 Difference]: Without dead ends: 1704 [2024-10-31 22:09:43,293 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 215 GetRequests, 176 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 410 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=535, Invalid=1105, Unknown=0, NotChecked=0, Total=1640 [2024-10-31 22:09:43,296 INFO L432 NwaCegarLoop]: 78 mSDtfsCounter, 1014 mSDsluCounter, 542 mSDsCounter, 0 mSdLazyCounter, 828 mSolverCounterSat, 125 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1014 SdHoareTripleChecker+Valid, 620 SdHoareTripleChecker+Invalid, 953 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 125 IncrementalHoareTripleChecker+Valid, 828 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-10-31 22:09:43,296 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1014 Valid, 620 Invalid, 953 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [125 Valid, 828 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-10-31 22:09:43,298 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1704 states. [2024-10-31 22:09:43,383 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1704 to 1269. [2024-10-31 22:09:43,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1269 states, 1268 states have (on average 1.1443217665615142) internal successors, (1451), 1268 states have internal predecessors, (1451), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:09:43,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1269 states to 1269 states and 1451 transitions. [2024-10-31 22:09:43,396 INFO L78 Accepts]: Start accepts. Automaton has 1269 states and 1451 transitions. Word has length 92 [2024-10-31 22:09:43,396 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:09:43,396 INFO L471 AbstractCegarLoop]: Abstraction has 1269 states and 1451 transitions. [2024-10-31 22:09:43,396 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 9.352941176470589) internal successors, (159), 17 states have internal predecessors, (159), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:09:43,397 INFO L276 IsEmpty]: Start isEmpty. Operand 1269 states and 1451 transitions. [2024-10-31 22:09:43,398 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2024-10-31 22:09:43,398 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:09:43,399 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:09:43,421 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d1eeb8-b3ce-4945-9570-06cbbf44f806/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2024-10-31 22:09:43,599 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d1eeb8-b3ce-4945-9570-06cbbf44f806/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2024-10-31 22:09:43,599 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr40ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 38 more)] === [2024-10-31 22:09:43,600 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:09:43,600 INFO L85 PathProgramCache]: Analyzing trace with hash -819850507, now seen corresponding path program 1 times [2024-10-31 22:09:43,600 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:09:43,600 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1229276225] [2024-10-31 22:09:43,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:09:43,601 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:09:43,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:09:44,048 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 30 proven. 28 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-10-31 22:09:44,049 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:09:44,049 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1229276225] [2024-10-31 22:09:44,049 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1229276225] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-31 22:09:44,050 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [640425641] [2024-10-31 22:09:44,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:09:44,051 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:09:44,051 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d1eeb8-b3ce-4945-9570-06cbbf44f806/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:09:44,053 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d1eeb8-b3ce-4945-9570-06cbbf44f806/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 22:09:44,056 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d1eeb8-b3ce-4945-9570-06cbbf44f806/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process