./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-restricted-15/McCarthyIterative.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_604b8a21-82b5-484d-8ae3-035168cbcde0/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_604b8a21-82b5-484d-8ae3-035168cbcde0/bin/uautomizer-verify-84ZbGMXZE1/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_604b8a21-82b5-484d-8ae3-035168cbcde0/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_604b8a21-82b5-484d-8ae3-035168cbcde0/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/termination-restricted-15/McCarthyIterative.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_604b8a21-82b5-484d-8ae3-035168cbcde0/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_604b8a21-82b5-484d-8ae3-035168cbcde0/bin/uautomizer-verify-84ZbGMXZE1 --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash faa806fd1be90697a522dfc0988145f6572d5d87fac98caf7aa5fe5b66e6095c --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-01 23:15:04,765 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-01 23:15:04,815 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_604b8a21-82b5-484d-8ae3-035168cbcde0/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Overflow-64bit-Automizer_Default.epf [2024-12-01 23:15:04,819 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-01 23:15:04,820 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-01 23:15:04,840 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-01 23:15:04,840 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-01 23:15:04,841 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-01 23:15:04,841 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-01 23:15:04,841 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-01 23:15:04,841 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-01 23:15:04,841 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-01 23:15:04,842 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-01 23:15:04,842 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-01 23:15:04,842 INFO L153 SettingsManager]: * Use SBE=true [2024-12-01 23:15:04,842 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-01 23:15:04,842 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-01 23:15:04,842 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-01 23:15:04,842 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-01 23:15:04,842 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-01 23:15:04,842 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-01 23:15:04,842 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-01 23:15:04,842 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-12-01 23:15:04,843 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-12-01 23:15:04,843 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-01 23:15:04,843 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-01 23:15:04,843 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-01 23:15:04,843 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-12-01 23:15:04,843 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-01 23:15:04,843 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-01 23:15:04,843 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-01 23:15:04,843 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-01 23:15:04,843 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-01 23:15:04,844 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-01 23:15:04,844 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-01 23:15:04,844 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-01 23:15:04,844 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-01 23:15:04,844 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-01 23:15:04,844 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-01 23:15:04,844 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-12-01 23:15:04,844 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-01 23:15:04,844 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-12-01 23:15:04,844 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-01 23:15:04,845 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-01 23:15:04,845 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-12-01 23:15:04,845 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-12-01 23:15:04,845 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-12-01 23:15:04,845 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_604b8a21-82b5-484d-8ae3-035168cbcde0/bin/uautomizer-verify-84ZbGMXZE1 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> faa806fd1be90697a522dfc0988145f6572d5d87fac98caf7aa5fe5b66e6095c [2024-12-01 23:15:05,045 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-01 23:15:05,052 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-01 23:15:05,055 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-01 23:15:05,056 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-01 23:15:05,056 INFO L274 PluginConnector]: CDTParser initialized [2024-12-01 23:15:05,057 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_604b8a21-82b5-484d-8ae3-035168cbcde0/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/termination-restricted-15/McCarthyIterative.c [2024-12-01 23:15:07,718 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_604b8a21-82b5-484d-8ae3-035168cbcde0/bin/uautomizer-verify-84ZbGMXZE1/data/a6527bae1/97b6058f61574d658db062ce65f032fe/FLAGd46605c9d [2024-12-01 23:15:07,889 INFO L384 CDTParser]: Found 1 translation units. [2024-12-01 23:15:07,889 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_604b8a21-82b5-484d-8ae3-035168cbcde0/sv-benchmarks/c/termination-restricted-15/McCarthyIterative.c [2024-12-01 23:15:07,896 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_604b8a21-82b5-484d-8ae3-035168cbcde0/bin/uautomizer-verify-84ZbGMXZE1/data/a6527bae1/97b6058f61574d658db062ce65f032fe/FLAGd46605c9d [2024-12-01 23:15:08,262 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_604b8a21-82b5-484d-8ae3-035168cbcde0/bin/uautomizer-verify-84ZbGMXZE1/data/a6527bae1/97b6058f61574d658db062ce65f032fe [2024-12-01 23:15:08,264 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-01 23:15:08,265 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-01 23:15:08,266 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-01 23:15:08,266 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-01 23:15:08,271 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-01 23:15:08,272 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 11:15:08" (1/1) ... [2024-12-01 23:15:08,273 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@315142d1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:15:08, skipping insertion in model container [2024-12-01 23:15:08,273 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 11:15:08" (1/1) ... [2024-12-01 23:15:08,287 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-01 23:15:08,415 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-01 23:15:08,420 INFO L200 MainTranslator]: Completed pre-run [2024-12-01 23:15:08,432 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-01 23:15:08,444 INFO L204 MainTranslator]: Completed translation [2024-12-01 23:15:08,445 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:15:08 WrapperNode [2024-12-01 23:15:08,445 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-01 23:15:08,446 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-01 23:15:08,446 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-01 23:15:08,446 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-01 23:15:08,453 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:15:08" (1/1) ... [2024-12-01 23:15:08,457 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:15:08" (1/1) ... [2024-12-01 23:15:08,472 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 27 [2024-12-01 23:15:08,472 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-01 23:15:08,473 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-01 23:15:08,473 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-01 23:15:08,473 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-01 23:15:08,481 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:15:08" (1/1) ... [2024-12-01 23:15:08,481 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:15:08" (1/1) ... [2024-12-01 23:15:08,482 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:15:08" (1/1) ... [2024-12-01 23:15:08,487 INFO L175 MemorySlicer]: No memory access in input program. [2024-12-01 23:15:08,487 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:15:08" (1/1) ... [2024-12-01 23:15:08,488 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:15:08" (1/1) ... [2024-12-01 23:15:08,489 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:15:08" (1/1) ... [2024-12-01 23:15:08,489 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:15:08" (1/1) ... [2024-12-01 23:15:08,493 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:15:08" (1/1) ... [2024-12-01 23:15:08,493 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:15:08" (1/1) ... [2024-12-01 23:15:08,494 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:15:08" (1/1) ... [2024-12-01 23:15:08,494 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-01 23:15:08,495 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-01 23:15:08,495 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-01 23:15:08,495 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-01 23:15:08,496 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:15:08" (1/1) ... [2024-12-01 23:15:08,500 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-01 23:15:08,510 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_604b8a21-82b5-484d-8ae3-035168cbcde0/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-01 23:15:08,522 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_604b8a21-82b5-484d-8ae3-035168cbcde0/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-12-01 23:15:08,525 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_604b8a21-82b5-484d-8ae3-035168cbcde0/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-12-01 23:15:08,550 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-01 23:15:08,551 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-01 23:15:08,610 INFO L234 CfgBuilder]: Building ICFG [2024-12-01 23:15:08,611 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-01 23:15:08,694 INFO L? ?]: Removed 11 outVars from TransFormulas that were not future-live. [2024-12-01 23:15:08,694 INFO L283 CfgBuilder]: Performing block encoding [2024-12-01 23:15:08,702 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-01 23:15:08,702 INFO L312 CfgBuilder]: Removed 1 assume(true) statements. [2024-12-01 23:15:08,702 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 11:15:08 BoogieIcfgContainer [2024-12-01 23:15:08,702 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-01 23:15:08,704 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-01 23:15:08,704 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-01 23:15:08,708 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-01 23:15:08,708 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.12 11:15:08" (1/3) ... [2024-12-01 23:15:08,709 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a70daa5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.12 11:15:08, skipping insertion in model container [2024-12-01 23:15:08,709 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:15:08" (2/3) ... [2024-12-01 23:15:08,709 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a70daa5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.12 11:15:08, skipping insertion in model container [2024-12-01 23:15:08,709 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 11:15:08" (3/3) ... [2024-12-01 23:15:08,710 INFO L128 eAbstractionObserver]: Analyzing ICFG McCarthyIterative.c [2024-12-01 23:15:08,723 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-01 23:15:08,724 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG McCarthyIterative.c that has 1 procedures, 24 locations, 1 initial locations, 1 loop locations, and 8 error locations. [2024-12-01 23:15:08,766 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-01 23:15:08,776 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;@50c0c563, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-01 23:15:08,776 INFO L334 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2024-12-01 23:15:08,779 INFO L276 IsEmpty]: Start isEmpty. Operand has 24 states, 15 states have (on average 1.7333333333333334) internal successors, (26), 23 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) [2024-12-01 23:15:08,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2024-12-01 23:15:08,783 INFO L210 NwaCegarLoop]: Found error trace [2024-12-01 23:15:08,783 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2024-12-01 23:15:08,784 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-12-01 23:15:08,788 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 23:15:08,788 INFO L85 PathProgramCache]: Analyzing trace with hash 28697190, now seen corresponding path program 1 times [2024-12-01 23:15:08,793 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 23:15:08,794 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [93813755] [2024-12-01 23:15:08,794 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 23:15:08,794 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 23:15:08,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 23:15:08,910 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-01 23:15:08,911 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 23:15:08,911 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [93813755] [2024-12-01 23:15:08,911 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [93813755] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 23:15:08,911 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-01 23:15:08,912 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-12-01 23:15:08,913 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1233060195] [2024-12-01 23:15:08,913 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 23:15:08,916 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-01 23:15:08,916 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 23:15:08,931 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-01 23:15:08,931 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-01 23:15:08,932 INFO L87 Difference]: Start difference. First operand has 24 states, 15 states have (on average 1.7333333333333334) internal successors, (26), 23 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) Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 23:15:08,985 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-01 23:15:08,986 INFO L93 Difference]: Finished difference Result 39 states and 44 transitions. [2024-12-01 23:15:08,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-01 23:15:08,989 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2024-12-01 23:15:08,989 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-01 23:15:08,995 INFO L225 Difference]: With dead ends: 39 [2024-12-01 23:15:08,995 INFO L226 Difference]: Without dead ends: 28 [2024-12-01 23:15:08,997 INFO L434 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 [2024-12-01 23:15:09,000 INFO L435 NwaCegarLoop]: 16 mSDtfsCounter, 9 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 29 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-01 23:15:09,001 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 29 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-01 23:15:09,011 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2024-12-01 23:15:09,021 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 26. [2024-12-01 23:15:09,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 18 states have (on average 1.7222222222222223) internal successors, (31), 25 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) [2024-12-01 23:15:09,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 31 transitions. [2024-12-01 23:15:09,026 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 31 transitions. Word has length 5 [2024-12-01 23:15:09,027 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-01 23:15:09,027 INFO L471 AbstractCegarLoop]: Abstraction has 26 states and 31 transitions. [2024-12-01 23:15:09,027 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 23:15:09,027 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 31 transitions. [2024-12-01 23:15:09,027 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2024-12-01 23:15:09,027 INFO L210 NwaCegarLoop]: Found error trace [2024-12-01 23:15:09,028 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2024-12-01 23:15:09,028 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-12-01 23:15:09,028 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-12-01 23:15:09,029 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 23:15:09,029 INFO L85 PathProgramCache]: Analyzing trace with hash 28696870, now seen corresponding path program 1 times [2024-12-01 23:15:09,029 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 23:15:09,029 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1236115037] [2024-12-01 23:15:09,029 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 23:15:09,029 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 23:15:09,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 23:15:09,057 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-01 23:15:09,057 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 23:15:09,057 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1236115037] [2024-12-01 23:15:09,057 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1236115037] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 23:15:09,057 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-01 23:15:09,057 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-12-01 23:15:09,057 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1087420978] [2024-12-01 23:15:09,057 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 23:15:09,058 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-01 23:15:09,058 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 23:15:09,059 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-01 23:15:09,059 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-01 23:15:09,059 INFO L87 Difference]: Start difference. First operand 26 states and 31 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 23:15:09,079 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-01 23:15:09,079 INFO L93 Difference]: Finished difference Result 26 states and 31 transitions. [2024-12-01 23:15:09,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-01 23:15:09,080 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2024-12-01 23:15:09,080 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-01 23:15:09,080 INFO L225 Difference]: With dead ends: 26 [2024-12-01 23:15:09,081 INFO L226 Difference]: Without dead ends: 25 [2024-12-01 23:15:09,081 INFO L434 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 [2024-12-01 23:15:09,082 INFO L435 NwaCegarLoop]: 17 mSDtfsCounter, 1 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 27 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-01 23:15:09,082 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 27 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-01 23:15:09,083 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2024-12-01 23:15:09,086 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25. [2024-12-01 23:15:09,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25 states, 18 states have (on average 1.6666666666666667) internal successors, (30), 24 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 23:15:09,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 30 transitions. [2024-12-01 23:15:09,087 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 30 transitions. Word has length 5 [2024-12-01 23:15:09,087 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-01 23:15:09,087 INFO L471 AbstractCegarLoop]: Abstraction has 25 states and 30 transitions. [2024-12-01 23:15:09,087 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 23:15:09,088 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 30 transitions. [2024-12-01 23:15:09,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-12-01 23:15:09,088 INFO L210 NwaCegarLoop]: Found error trace [2024-12-01 23:15:09,088 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2024-12-01 23:15:09,088 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-12-01 23:15:09,089 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-12-01 23:15:09,089 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 23:15:09,089 INFO L85 PathProgramCache]: Analyzing trace with hash 889612948, now seen corresponding path program 1 times [2024-12-01 23:15:09,089 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 23:15:09,089 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [446976024] [2024-12-01 23:15:09,090 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 23:15:09,090 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 23:15:09,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 23:15:09,118 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-01 23:15:09,118 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 23:15:09,118 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [446976024] [2024-12-01 23:15:09,118 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [446976024] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 23:15:09,118 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-01 23:15:09,118 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-12-01 23:15:09,118 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2000597649] [2024-12-01 23:15:09,118 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 23:15:09,118 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-01 23:15:09,119 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 23:15:09,119 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-01 23:15:09,119 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-01 23:15:09,119 INFO L87 Difference]: Start difference. First operand 25 states and 30 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 23:15:09,143 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-01 23:15:09,144 INFO L93 Difference]: Finished difference Result 25 states and 30 transitions. [2024-12-01 23:15:09,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-01 23:15:09,144 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2024-12-01 23:15:09,144 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-01 23:15:09,145 INFO L225 Difference]: With dead ends: 25 [2024-12-01 23:15:09,145 INFO L226 Difference]: Without dead ends: 24 [2024-12-01 23:15:09,145 INFO L434 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 [2024-12-01 23:15:09,146 INFO L435 NwaCegarLoop]: 16 mSDtfsCounter, 0 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 26 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-01 23:15:09,146 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 26 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-01 23:15:09,147 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2024-12-01 23:15:09,149 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24. [2024-12-01 23:15:09,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 18 states have (on average 1.5555555555555556) internal successors, (28), 23 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) [2024-12-01 23:15:09,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 28 transitions. [2024-12-01 23:15:09,150 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 28 transitions. Word has length 6 [2024-12-01 23:15:09,150 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-01 23:15:09,150 INFO L471 AbstractCegarLoop]: Abstraction has 24 states and 28 transitions. [2024-12-01 23:15:09,151 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 23:15:09,151 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 28 transitions. [2024-12-01 23:15:09,151 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-12-01 23:15:09,151 INFO L210 NwaCegarLoop]: Found error trace [2024-12-01 23:15:09,151 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2024-12-01 23:15:09,151 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-12-01 23:15:09,151 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-12-01 23:15:09,152 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 23:15:09,152 INFO L85 PathProgramCache]: Analyzing trace with hash 889603018, now seen corresponding path program 1 times [2024-12-01 23:15:09,152 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 23:15:09,152 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1349151475] [2024-12-01 23:15:09,152 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 23:15:09,152 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 23:15:09,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 23:15:09,180 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-01 23:15:09,180 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 23:15:09,180 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1349151475] [2024-12-01 23:15:09,180 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1349151475] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 23:15:09,180 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-01 23:15:09,180 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-12-01 23:15:09,180 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1691325303] [2024-12-01 23:15:09,181 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 23:15:09,181 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-01 23:15:09,181 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 23:15:09,181 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-01 23:15:09,181 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-01 23:15:09,182 INFO L87 Difference]: Start difference. First operand 24 states and 28 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 23:15:09,199 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-01 23:15:09,199 INFO L93 Difference]: Finished difference Result 24 states and 28 transitions. [2024-12-01 23:15:09,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-01 23:15:09,200 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2024-12-01 23:15:09,200 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-01 23:15:09,200 INFO L225 Difference]: With dead ends: 24 [2024-12-01 23:15:09,200 INFO L226 Difference]: Without dead ends: 23 [2024-12-01 23:15:09,200 INFO L434 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 [2024-12-01 23:15:09,201 INFO L435 NwaCegarLoop]: 11 mSDtfsCounter, 10 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 12 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-01 23:15:09,202 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 12 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-01 23:15:09,202 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2024-12-01 23:15:09,205 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2024-12-01 23:15:09,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 18 states have (on average 1.5) internal successors, (27), 22 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 23:15:09,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 27 transitions. [2024-12-01 23:15:09,206 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 27 transitions. Word has length 6 [2024-12-01 23:15:09,206 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-01 23:15:09,206 INFO L471 AbstractCegarLoop]: Abstraction has 23 states and 27 transitions. [2024-12-01 23:15:09,206 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 23:15:09,206 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 27 transitions. [2024-12-01 23:15:09,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-12-01 23:15:09,206 INFO L210 NwaCegarLoop]: Found error trace [2024-12-01 23:15:09,207 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-12-01 23:15:09,207 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-12-01 23:15:09,207 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-12-01 23:15:09,207 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 23:15:09,207 INFO L85 PathProgramCache]: Analyzing trace with hash 1808197672, now seen corresponding path program 1 times [2024-12-01 23:15:09,208 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 23:15:09,208 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1884994202] [2024-12-01 23:15:09,208 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 23:15:09,208 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 23:15:09,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 23:15:09,240 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-01 23:15:09,240 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 23:15:09,240 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1884994202] [2024-12-01 23:15:09,241 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1884994202] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 23:15:09,241 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-01 23:15:09,241 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-12-01 23:15:09,241 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1678945088] [2024-12-01 23:15:09,241 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 23:15:09,241 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-01 23:15:09,241 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 23:15:09,242 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-01 23:15:09,242 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-01 23:15:09,242 INFO L87 Difference]: Start difference. First operand 23 states and 27 transitions. Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 23:15:09,257 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-01 23:15:09,257 INFO L93 Difference]: Finished difference Result 24 states and 28 transitions. [2024-12-01 23:15:09,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-01 23:15:09,257 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2024-12-01 23:15:09,257 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-01 23:15:09,258 INFO L225 Difference]: With dead ends: 24 [2024-12-01 23:15:09,258 INFO L226 Difference]: Without dead ends: 22 [2024-12-01 23:15:09,258 INFO L434 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 [2024-12-01 23:15:09,259 INFO L435 NwaCegarLoop]: 9 mSDtfsCounter, 6 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 10 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-01 23:15:09,259 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 10 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-01 23:15:09,260 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2024-12-01 23:15:09,262 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 21. [2024-12-01 23:15:09,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 18 states have (on average 1.3333333333333333) internal successors, (24), 20 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 23:15:09,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 24 transitions. [2024-12-01 23:15:09,263 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 24 transitions. Word has length 7 [2024-12-01 23:15:09,263 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-01 23:15:09,263 INFO L471 AbstractCegarLoop]: Abstraction has 21 states and 24 transitions. [2024-12-01 23:15:09,263 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 23:15:09,264 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 24 transitions. [2024-12-01 23:15:09,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-12-01 23:15:09,264 INFO L210 NwaCegarLoop]: Found error trace [2024-12-01 23:15:09,264 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 23:15:09,264 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-12-01 23:15:09,264 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-12-01 23:15:09,265 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 23:15:09,265 INFO L85 PathProgramCache]: Analyzing trace with hash 219553046, now seen corresponding path program 1 times [2024-12-01 23:15:09,265 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 23:15:09,265 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [115547989] [2024-12-01 23:15:09,265 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 23:15:09,265 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 23:15:09,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 23:15:09,294 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-01 23:15:09,294 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 23:15:09,294 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [115547989] [2024-12-01 23:15:09,294 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [115547989] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 23:15:09,294 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-01 23:15:09,295 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-12-01 23:15:09,295 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1834006723] [2024-12-01 23:15:09,295 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 23:15:09,295 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-01 23:15:09,295 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 23:15:09,295 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-01 23:15:09,295 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-01 23:15:09,296 INFO L87 Difference]: Start difference. First operand 21 states and 24 transitions. Second operand has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 23:15:09,316 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-01 23:15:09,317 INFO L93 Difference]: Finished difference Result 40 states and 46 transitions. [2024-12-01 23:15:09,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-01 23:15:09,317 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2024-12-01 23:15:09,318 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-01 23:15:09,318 INFO L225 Difference]: With dead ends: 40 [2024-12-01 23:15:09,318 INFO L226 Difference]: Without dead ends: 38 [2024-12-01 23:15:09,318 INFO L434 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 [2024-12-01 23:15:09,319 INFO L435 NwaCegarLoop]: 11 mSDtfsCounter, 5 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 19 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-01 23:15:09,319 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 19 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-01 23:15:09,320 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2024-12-01 23:15:09,323 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 37. [2024-12-01 23:15:09,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37 states, 34 states have (on average 1.2647058823529411) internal successors, (43), 36 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 23:15:09,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 43 transitions. [2024-12-01 23:15:09,324 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 43 transitions. Word has length 8 [2024-12-01 23:15:09,324 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-01 23:15:09,324 INFO L471 AbstractCegarLoop]: Abstraction has 37 states and 43 transitions. [2024-12-01 23:15:09,324 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 23:15:09,324 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 43 transitions. [2024-12-01 23:15:09,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-12-01 23:15:09,325 INFO L210 NwaCegarLoop]: Found error trace [2024-12-01 23:15:09,325 INFO L218 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 23:15:09,325 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-12-01 23:15:09,325 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-12-01 23:15:09,325 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 23:15:09,325 INFO L85 PathProgramCache]: Analyzing trace with hash -1359521188, now seen corresponding path program 1 times [2024-12-01 23:15:09,325 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 23:15:09,325 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1525105940] [2024-12-01 23:15:09,326 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 23:15:09,326 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 23:15:09,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 23:15:09,379 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-01 23:15:09,379 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 23:15:09,379 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1525105940] [2024-12-01 23:15:09,379 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1525105940] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 23:15:09,379 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-01 23:15:09,379 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-01 23:15:09,380 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [377468774] [2024-12-01 23:15:09,380 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 23:15:09,380 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-01 23:15:09,380 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 23:15:09,380 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-01 23:15:09,380 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-12-01 23:15:09,381 INFO L87 Difference]: Start difference. First operand 37 states and 43 transitions. Second operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 23:15:09,406 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-01 23:15:09,406 INFO L93 Difference]: Finished difference Result 55 states and 62 transitions. [2024-12-01 23:15:09,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-01 23:15:09,407 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2024-12-01 23:15:09,407 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-01 23:15:09,408 INFO L225 Difference]: With dead ends: 55 [2024-12-01 23:15:09,408 INFO L226 Difference]: Without dead ends: 27 [2024-12-01 23:15:09,408 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-12-01 23:15:09,409 INFO L435 NwaCegarLoop]: 11 mSDtfsCounter, 4 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 25 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-01 23:15:09,409 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 25 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-01 23:15:09,409 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2024-12-01 23:15:09,412 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2024-12-01 23:15:09,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 24 states have (on average 1.25) internal successors, (30), 26 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 23:15:09,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 30 transitions. [2024-12-01 23:15:09,413 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 30 transitions. Word has length 11 [2024-12-01 23:15:09,414 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-01 23:15:09,414 INFO L471 AbstractCegarLoop]: Abstraction has 27 states and 30 transitions. [2024-12-01 23:15:09,414 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 23:15:09,414 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 30 transitions. [2024-12-01 23:15:09,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-12-01 23:15:09,414 INFO L210 NwaCegarLoop]: Found error trace [2024-12-01 23:15:09,414 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1] [2024-12-01 23:15:09,415 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-12-01 23:15:09,415 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-12-01 23:15:09,415 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 23:15:09,415 INFO L85 PathProgramCache]: Analyzing trace with hash 1224796010, now seen corresponding path program 1 times [2024-12-01 23:15:09,415 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 23:15:09,415 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1427515364] [2024-12-01 23:15:09,416 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 23:15:09,416 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 23:15:09,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 23:15:09,459 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-01 23:15:09,459 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 23:15:09,459 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1427515364] [2024-12-01 23:15:09,459 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1427515364] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-01 23:15:09,459 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1322502375] [2024-12-01 23:15:09,459 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 23:15:09,459 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-01 23:15:09,459 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_604b8a21-82b5-484d-8ae3-035168cbcde0/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-01 23:15:09,462 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_604b8a21-82b5-484d-8ae3-035168cbcde0/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-01 23:15:09,464 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_604b8a21-82b5-484d-8ae3-035168cbcde0/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-12-01 23:15:09,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 23:15:09,495 INFO L256 TraceCheckSpWp]: Trace formula consists of 25 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-12-01 23:15:09,498 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-01 23:15:09,550 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-01 23:15:09,550 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-01 23:15:09,592 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-01 23:15:09,593 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1322502375] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-01 23:15:09,593 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-01 23:15:09,593 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 5 [2024-12-01 23:15:09,593 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1621944750] [2024-12-01 23:15:09,593 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-01 23:15:09,593 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-01 23:15:09,593 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 23:15:09,594 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-01 23:15:09,594 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-12-01 23:15:09,594 INFO L87 Difference]: Start difference. First operand 27 states and 30 transitions. Second operand has 6 states, 5 states have (on average 5.4) internal successors, (27), 6 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 23:15:09,645 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-01 23:15:09,645 INFO L93 Difference]: Finished difference Result 91 states and 110 transitions. [2024-12-01 23:15:09,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-01 23:15:09,645 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.4) internal successors, (27), 6 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2024-12-01 23:15:09,646 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-01 23:15:09,646 INFO L225 Difference]: With dead ends: 91 [2024-12-01 23:15:09,646 INFO L226 Difference]: Without dead ends: 89 [2024-12-01 23:15:09,647 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-12-01 23:15:09,647 INFO L435 NwaCegarLoop]: 14 mSDtfsCounter, 25 mSDsluCounter, 31 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 45 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-01 23:15:09,647 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 45 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-01 23:15:09,648 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2024-12-01 23:15:09,654 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 77. [2024-12-01 23:15:09,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77 states, 74 states have (on average 1.2297297297297298) internal successors, (91), 76 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 23:15:09,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 91 transitions. [2024-12-01 23:15:09,655 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 91 transitions. Word has length 14 [2024-12-01 23:15:09,656 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-01 23:15:09,656 INFO L471 AbstractCegarLoop]: Abstraction has 77 states and 91 transitions. [2024-12-01 23:15:09,656 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.4) internal successors, (27), 6 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 23:15:09,656 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 91 transitions. [2024-12-01 23:15:09,656 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2024-12-01 23:15:09,656 INFO L210 NwaCegarLoop]: Found error trace [2024-12-01 23:15:09,656 INFO L218 NwaCegarLoop]: trace histogram [3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 23:15:09,664 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_604b8a21-82b5-484d-8ae3-035168cbcde0/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-12-01 23:15:09,857 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_604b8a21-82b5-484d-8ae3-035168cbcde0/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-01 23:15:09,857 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-12-01 23:15:09,858 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 23:15:09,858 INFO L85 PathProgramCache]: Analyzing trace with hash 1321631624, now seen corresponding path program 1 times [2024-12-01 23:15:09,858 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 23:15:09,858 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1951550127] [2024-12-01 23:15:09,858 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 23:15:09,858 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 23:15:09,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 23:15:09,905 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-12-01 23:15:09,906 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 23:15:09,906 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1951550127] [2024-12-01 23:15:09,906 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1951550127] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 23:15:09,906 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-01 23:15:09,906 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-01 23:15:09,906 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1845384270] [2024-12-01 23:15:09,906 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 23:15:09,906 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-01 23:15:09,907 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 23:15:09,907 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-01 23:15:09,907 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-12-01 23:15:09,907 INFO L87 Difference]: Start difference. First operand 77 states and 91 transitions. Second operand has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 23:15:09,934 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-01 23:15:09,934 INFO L93 Difference]: Finished difference Result 104 states and 123 transitions. [2024-12-01 23:15:09,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-01 23:15:09,935 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2024-12-01 23:15:09,935 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-01 23:15:09,936 INFO L225 Difference]: With dead ends: 104 [2024-12-01 23:15:09,936 INFO L226 Difference]: Without dead ends: 47 [2024-12-01 23:15:09,936 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-12-01 23:15:09,937 INFO L435 NwaCegarLoop]: 18 mSDtfsCounter, 9 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 27 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-01 23:15:09,937 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 27 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-01 23:15:09,938 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2024-12-01 23:15:09,942 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 46. [2024-12-01 23:15:09,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46 states, 44 states have (on average 1.1136363636363635) internal successors, (49), 45 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 23:15:09,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 49 transitions. [2024-12-01 23:15:09,943 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 49 transitions. Word has length 17 [2024-12-01 23:15:09,943 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-01 23:15:09,943 INFO L471 AbstractCegarLoop]: Abstraction has 46 states and 49 transitions. [2024-12-01 23:15:09,943 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 23:15:09,944 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 49 transitions. [2024-12-01 23:15:09,944 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2024-12-01 23:15:09,944 INFO L210 NwaCegarLoop]: Found error trace [2024-12-01 23:15:09,944 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 4, 1, 1, 1] [2024-12-01 23:15:09,945 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-12-01 23:15:09,945 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-12-01 23:15:09,945 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 23:15:09,945 INFO L85 PathProgramCache]: Analyzing trace with hash -1992954778, now seen corresponding path program 2 times [2024-12-01 23:15:09,945 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 23:15:09,945 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [812896682] [2024-12-01 23:15:09,945 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-12-01 23:15:09,946 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 23:15:09,960 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-12-01 23:15:09,961 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-01 23:15:10,047 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 60 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-01 23:15:10,048 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 23:15:10,048 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [812896682] [2024-12-01 23:15:10,048 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [812896682] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-01 23:15:10,048 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [753158378] [2024-12-01 23:15:10,048 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-12-01 23:15:10,048 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-01 23:15:10,049 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_604b8a21-82b5-484d-8ae3-035168cbcde0/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-01 23:15:10,050 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_604b8a21-82b5-484d-8ae3-035168cbcde0/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-01 23:15:10,051 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_604b8a21-82b5-484d-8ae3-035168cbcde0/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-12-01 23:15:10,081 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-12-01 23:15:10,081 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-01 23:15:10,081 INFO L256 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-12-01 23:15:10,083 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-01 23:15:10,141 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 60 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-01 23:15:10,142 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-01 23:15:10,256 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 60 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-01 23:15:10,256 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [753158378] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-01 23:15:10,256 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-01 23:15:10,256 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 11 [2024-12-01 23:15:10,256 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [409389300] [2024-12-01 23:15:10,256 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-01 23:15:10,256 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-12-01 23:15:10,256 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 23:15:10,257 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-12-01 23:15:10,257 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2024-12-01 23:15:10,257 INFO L87 Difference]: Start difference. First operand 46 states and 49 transitions. Second operand has 12 states, 11 states have (on average 5.7272727272727275) internal successors, (63), 12 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) [2024-12-01 23:15:10,368 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-01 23:15:10,368 INFO L93 Difference]: Finished difference Result 188 states and 227 transitions. [2024-12-01 23:15:10,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-12-01 23:15:10,369 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 5.7272727272727275) internal successors, (63), 12 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 32 [2024-12-01 23:15:10,369 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-01 23:15:10,369 INFO L225 Difference]: With dead ends: 188 [2024-12-01 23:15:10,369 INFO L226 Difference]: Without dead ends: 82 [2024-12-01 23:15:10,370 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2024-12-01 23:15:10,370 INFO L435 NwaCegarLoop]: 22 mSDtfsCounter, 56 mSDsluCounter, 72 mSDsCounter, 0 mSdLazyCounter, 75 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 94 SdHoareTripleChecker+Invalid, 95 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 75 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-01 23:15:10,371 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 94 Invalid, 95 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 75 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-01 23:15:10,371 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states. [2024-12-01 23:15:10,378 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 82. [2024-12-01 23:15:10,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 82 states, 80 states have (on average 1.0625) internal successors, (85), 81 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 23:15:10,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 85 transitions. [2024-12-01 23:15:10,379 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 85 transitions. Word has length 32 [2024-12-01 23:15:10,379 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-01 23:15:10,379 INFO L471 AbstractCegarLoop]: Abstraction has 82 states and 85 transitions. [2024-12-01 23:15:10,380 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 5.7272727272727275) internal successors, (63), 12 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) [2024-12-01 23:15:10,380 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 85 transitions. [2024-12-01 23:15:10,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-12-01 23:15:10,381 INFO L210 NwaCegarLoop]: Found error trace [2024-12-01 23:15:10,381 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 11, 11, 10, 1, 1, 1] [2024-12-01 23:15:10,389 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_604b8a21-82b5-484d-8ae3-035168cbcde0/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-12-01 23:15:10,581 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_604b8a21-82b5-484d-8ae3-035168cbcde0/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-12-01 23:15:10,582 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-12-01 23:15:10,582 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 23:15:10,582 INFO L85 PathProgramCache]: Analyzing trace with hash 631333214, now seen corresponding path program 3 times [2024-12-01 23:15:10,582 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 23:15:10,582 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2013420037] [2024-12-01 23:15:10,582 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-12-01 23:15:10,582 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 23:15:10,616 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2024-12-01 23:15:10,616 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-01 23:15:10,856 INFO L134 CoverageAnalysis]: Checked inductivity of 330 backedges. 0 proven. 330 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-01 23:15:10,856 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 23:15:10,856 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2013420037] [2024-12-01 23:15:10,856 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2013420037] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-01 23:15:10,856 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1134808145] [2024-12-01 23:15:10,856 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-12-01 23:15:10,856 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-01 23:15:10,857 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_604b8a21-82b5-484d-8ae3-035168cbcde0/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-01 23:15:10,859 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_604b8a21-82b5-484d-8ae3-035168cbcde0/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-01 23:15:10,861 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_604b8a21-82b5-484d-8ae3-035168cbcde0/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-12-01 23:15:10,911 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2024-12-01 23:15:10,911 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-01 23:15:10,912 INFO L256 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-12-01 23:15:10,914 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-01 23:15:11,036 INFO L134 CoverageAnalysis]: Checked inductivity of 330 backedges. 0 proven. 330 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-01 23:15:11,036 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-01 23:15:11,353 INFO L134 CoverageAnalysis]: Checked inductivity of 330 backedges. 0 proven. 330 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-01 23:15:11,353 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1134808145] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-01 23:15:11,353 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-01 23:15:11,353 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 23 [2024-12-01 23:15:11,353 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1873660853] [2024-12-01 23:15:11,353 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-01 23:15:11,354 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2024-12-01 23:15:11,354 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 23:15:11,354 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2024-12-01 23:15:11,355 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=276, Invalid=276, Unknown=0, NotChecked=0, Total=552 [2024-12-01 23:15:11,355 INFO L87 Difference]: Start difference. First operand 82 states and 85 transitions. Second operand has 24 states, 23 states have (on average 5.869565217391305) internal successors, (135), 24 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 23:15:11,583 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-01 23:15:11,584 INFO L93 Difference]: Finished difference Result 404 states and 491 transitions. [2024-12-01 23:15:11,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2024-12-01 23:15:11,584 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 23 states have (on average 5.869565217391305) internal successors, (135), 24 states have internal predecessors, (135), 0 states have call successors, (0), 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 [2024-12-01 23:15:11,585 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-01 23:15:11,586 INFO L225 Difference]: With dead ends: 404 [2024-12-01 23:15:11,586 INFO L226 Difference]: Without dead ends: 154 [2024-12-01 23:15:11,587 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 146 GetRequests, 124 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=276, Invalid=276, Unknown=0, NotChecked=0, Total=552 [2024-12-01 23:15:11,587 INFO L435 NwaCegarLoop]: 40 mSDtfsCounter, 136 mSDsluCounter, 170 mSDsCounter, 0 mSdLazyCounter, 164 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 136 SdHoareTripleChecker+Valid, 210 SdHoareTripleChecker+Invalid, 212 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 164 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-01 23:15:11,587 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [136 Valid, 210 Invalid, 212 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 164 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-01 23:15:11,588 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 154 states. [2024-12-01 23:15:11,597 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 154 to 154. [2024-12-01 23:15:11,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 154 states, 152 states have (on average 1.0328947368421053) internal successors, (157), 153 states have internal predecessors, (157), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 23:15:11,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 157 transitions. [2024-12-01 23:15:11,598 INFO L78 Accepts]: Start accepts. Automaton has 154 states and 157 transitions. Word has length 68 [2024-12-01 23:15:11,599 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-01 23:15:11,599 INFO L471 AbstractCegarLoop]: Abstraction has 154 states and 157 transitions. [2024-12-01 23:15:11,599 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 23 states have (on average 5.869565217391305) internal successors, (135), 24 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 23:15:11,599 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 157 transitions. [2024-12-01 23:15:11,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2024-12-01 23:15:11,601 INFO L210 NwaCegarLoop]: Found error trace [2024-12-01 23:15:11,602 INFO L218 NwaCegarLoop]: trace histogram [23, 23, 23, 23, 23, 22, 1, 1, 1] [2024-12-01 23:15:11,610 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_604b8a21-82b5-484d-8ae3-035168cbcde0/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-12-01 23:15:11,802 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_604b8a21-82b5-484d-8ae3-035168cbcde0/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2024-12-01 23:15:11,802 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-12-01 23:15:11,802 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 23:15:11,803 INFO L85 PathProgramCache]: Analyzing trace with hash -1600719026, now seen corresponding path program 4 times [2024-12-01 23:15:11,803 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 23:15:11,803 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [694235581] [2024-12-01 23:15:11,803 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-12-01 23:15:11,803 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 23:15:11,838 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-12-01 23:15:11,838 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-01 23:15:12,509 INFO L134 CoverageAnalysis]: Checked inductivity of 1518 backedges. 0 proven. 1518 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-01 23:15:12,509 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 23:15:12,509 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [694235581] [2024-12-01 23:15:12,509 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [694235581] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-01 23:15:12,509 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [886474079] [2024-12-01 23:15:12,509 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-12-01 23:15:12,510 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-01 23:15:12,510 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_604b8a21-82b5-484d-8ae3-035168cbcde0/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-01 23:15:12,511 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_604b8a21-82b5-484d-8ae3-035168cbcde0/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-01 23:15:12,514 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_604b8a21-82b5-484d-8ae3-035168cbcde0/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-12-01 23:15:12,574 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-12-01 23:15:12,574 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-01 23:15:12,576 INFO L256 TraceCheckSpWp]: Trace formula consists of 235 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-12-01 23:15:12,582 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-01 23:15:12,792 INFO L134 CoverageAnalysis]: Checked inductivity of 1518 backedges. 0 proven. 1518 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-01 23:15:12,792 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-01 23:15:13,673 INFO L134 CoverageAnalysis]: Checked inductivity of 1518 backedges. 0 proven. 1518 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-01 23:15:13,673 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [886474079] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-01 23:15:13,673 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-01 23:15:13,674 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 24, 24] total 47 [2024-12-01 23:15:13,674 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1621495432] [2024-12-01 23:15:13,674 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-01 23:15:13,674 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 48 states [2024-12-01 23:15:13,675 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 23:15:13,676 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2024-12-01 23:15:13,677 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1128, Invalid=1128, Unknown=0, NotChecked=0, Total=2256 [2024-12-01 23:15:13,677 INFO L87 Difference]: Start difference. First operand 154 states and 157 transitions. Second operand has 48 states, 47 states have (on average 5.9361702127659575) internal successors, (279), 48 states have internal predecessors, (279), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 23:15:14,104 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-01 23:15:14,104 INFO L93 Difference]: Finished difference Result 836 states and 1019 transitions. [2024-12-01 23:15:14,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2024-12-01 23:15:14,104 INFO L78 Accepts]: Start accepts. Automaton has has 48 states, 47 states have (on average 5.9361702127659575) internal successors, (279), 48 states have internal predecessors, (279), 0 states have call successors, (0), 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 140 [2024-12-01 23:15:14,105 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-01 23:15:14,106 INFO L225 Difference]: With dead ends: 836 [2024-12-01 23:15:14,106 INFO L226 Difference]: Without dead ends: 298 [2024-12-01 23:15:14,107 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 302 GetRequests, 256 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=1128, Invalid=1128, Unknown=0, NotChecked=0, Total=2256 [2024-12-01 23:15:14,108 INFO L435 NwaCegarLoop]: 76 mSDtfsCounter, 360 mSDsluCounter, 374 mSDsCounter, 0 mSdLazyCounter, 348 mSolverCounterSat, 118 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 360 SdHoareTripleChecker+Valid, 450 SdHoareTripleChecker+Invalid, 466 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 118 IncrementalHoareTripleChecker+Valid, 348 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-12-01 23:15:14,108 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [360 Valid, 450 Invalid, 466 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [118 Valid, 348 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-12-01 23:15:14,109 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 298 states. [2024-12-01 23:15:14,121 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 298 to 298. [2024-12-01 23:15:14,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 298 states, 296 states have (on average 1.0168918918918919) internal successors, (301), 297 states have internal predecessors, (301), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 23:15:14,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 298 states to 298 states and 301 transitions. [2024-12-01 23:15:14,124 INFO L78 Accepts]: Start accepts. Automaton has 298 states and 301 transitions. Word has length 140 [2024-12-01 23:15:14,124 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-01 23:15:14,124 INFO L471 AbstractCegarLoop]: Abstraction has 298 states and 301 transitions. [2024-12-01 23:15:14,124 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 48 states, 47 states have (on average 5.9361702127659575) internal successors, (279), 48 states have internal predecessors, (279), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 23:15:14,125 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states and 301 transitions. [2024-12-01 23:15:14,129 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 285 [2024-12-01 23:15:14,129 INFO L210 NwaCegarLoop]: Found error trace [2024-12-01 23:15:14,129 INFO L218 NwaCegarLoop]: trace histogram [47, 47, 47, 47, 47, 46, 1, 1, 1] [2024-12-01 23:15:14,140 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_604b8a21-82b5-484d-8ae3-035168cbcde0/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-12-01 23:15:14,329 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_604b8a21-82b5-484d-8ae3-035168cbcde0/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2024-12-01 23:15:14,329 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-12-01 23:15:14,330 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 23:15:14,330 INFO L85 PathProgramCache]: Analyzing trace with hash -129707218, now seen corresponding path program 5 times [2024-12-01 23:15:14,330 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 23:15:14,330 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1211299502] [2024-12-01 23:15:14,330 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-12-01 23:15:14,330 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 23:15:14,423 INFO L229 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 47 check-sat command(s) [2024-12-01 23:15:14,423 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-01 23:15:16,563 INFO L134 CoverageAnalysis]: Checked inductivity of 6486 backedges. 0 proven. 6486 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-01 23:15:16,564 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 23:15:16,564 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1211299502] [2024-12-01 23:15:16,564 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1211299502] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-01 23:15:16,564 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1976712242] [2024-12-01 23:15:16,564 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-12-01 23:15:16,564 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-01 23:15:16,564 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_604b8a21-82b5-484d-8ae3-035168cbcde0/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-01 23:15:16,566 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_604b8a21-82b5-484d-8ae3-035168cbcde0/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-01 23:15:16,567 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_604b8a21-82b5-484d-8ae3-035168cbcde0/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-12-01 23:15:16,692 INFO L229 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 47 check-sat command(s) [2024-12-01 23:15:16,692 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-01 23:15:16,694 INFO L256 TraceCheckSpWp]: Trace formula consists of 475 conjuncts, 48 conjuncts are in the unsatisfiable core [2024-12-01 23:15:16,699 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-01 23:15:17,004 INFO L134 CoverageAnalysis]: Checked inductivity of 6486 backedges. 0 proven. 6486 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-01 23:15:17,004 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-01 23:15:19,452 INFO L134 CoverageAnalysis]: Checked inductivity of 6486 backedges. 0 proven. 6486 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-01 23:15:19,452 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1976712242] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-01 23:15:19,452 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-01 23:15:19,452 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [48, 48, 48] total 95 [2024-12-01 23:15:19,452 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1611027493] [2024-12-01 23:15:19,453 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-01 23:15:19,453 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 96 states [2024-12-01 23:15:19,453 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 23:15:19,455 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 96 interpolants. [2024-12-01 23:15:19,456 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=4560, Invalid=4560, Unknown=0, NotChecked=0, Total=9120 [2024-12-01 23:15:19,456 INFO L87 Difference]: Start difference. First operand 298 states and 301 transitions. Second operand has 96 states, 95 states have (on average 5.968421052631579) internal successors, (567), 96 states have internal predecessors, (567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 23:15:20,763 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-01 23:15:20,764 INFO L93 Difference]: Finished difference Result 1700 states and 2075 transitions. [2024-12-01 23:15:20,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 96 states. [2024-12-01 23:15:20,764 INFO L78 Accepts]: Start accepts. Automaton has has 96 states, 95 states have (on average 5.968421052631579) internal successors, (567), 96 states have internal predecessors, (567), 0 states have call successors, (0), 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 284 [2024-12-01 23:15:20,765 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-01 23:15:20,767 INFO L225 Difference]: With dead ends: 1700 [2024-12-01 23:15:20,767 INFO L226 Difference]: Without dead ends: 586 [2024-12-01 23:15:20,768 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 614 GetRequests, 520 SyntacticMatches, 0 SemanticMatches, 94 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=4560, Invalid=4560, Unknown=0, NotChecked=0, Total=9120 [2024-12-01 23:15:20,769 INFO L435 NwaCegarLoop]: 148 mSDtfsCounter, 804 mSDsluCounter, 924 mSDsCounter, 0 mSdLazyCounter, 809 mSolverCounterSat, 251 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 804 SdHoareTripleChecker+Valid, 1072 SdHoareTripleChecker+Invalid, 1060 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 251 IncrementalHoareTripleChecker+Valid, 809 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-12-01 23:15:20,769 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [804 Valid, 1072 Invalid, 1060 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [251 Valid, 809 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-12-01 23:15:20,770 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 586 states. [2024-12-01 23:15:20,781 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 586 to 586. [2024-12-01 23:15:20,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 586 states, 584 states have (on average 1.0085616438356164) internal successors, (589), 585 states have internal predecessors, (589), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 23:15:20,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 586 states to 586 states and 589 transitions. [2024-12-01 23:15:20,784 INFO L78 Accepts]: Start accepts. Automaton has 586 states and 589 transitions. Word has length 284 [2024-12-01 23:15:20,784 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-01 23:15:20,784 INFO L471 AbstractCegarLoop]: Abstraction has 586 states and 589 transitions. [2024-12-01 23:15:20,785 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 96 states, 95 states have (on average 5.968421052631579) internal successors, (567), 96 states have internal predecessors, (567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 23:15:20,785 INFO L276 IsEmpty]: Start isEmpty. Operand 586 states and 589 transitions. [2024-12-01 23:15:20,791 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 573 [2024-12-01 23:15:20,791 INFO L210 NwaCegarLoop]: Found error trace [2024-12-01 23:15:20,791 INFO L218 NwaCegarLoop]: trace histogram [95, 95, 95, 95, 95, 94, 1, 1, 1] [2024-12-01 23:15:20,797 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_604b8a21-82b5-484d-8ae3-035168cbcde0/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-12-01 23:15:20,992 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_604b8a21-82b5-484d-8ae3-035168cbcde0/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2024-12-01 23:15:20,992 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-12-01 23:15:20,992 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 23:15:20,993 INFO L85 PathProgramCache]: Analyzing trace with hash -2132063506, now seen corresponding path program 6 times [2024-12-01 23:15:20,993 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 23:15:20,993 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1998556655] [2024-12-01 23:15:20,993 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-12-01 23:15:20,993 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 23:15:21,085 INFO L229 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 95 check-sat command(s) [2024-12-01 23:15:21,085 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-01 23:15:27,465 INFO L134 CoverageAnalysis]: Checked inductivity of 26790 backedges. 0 proven. 26790 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-01 23:15:27,465 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 23:15:27,466 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1998556655] [2024-12-01 23:15:27,466 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1998556655] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-01 23:15:27,466 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [932954531] [2024-12-01 23:15:27,466 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-12-01 23:15:27,466 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-01 23:15:27,466 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_604b8a21-82b5-484d-8ae3-035168cbcde0/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-01 23:15:27,467 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_604b8a21-82b5-484d-8ae3-035168cbcde0/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-01 23:15:27,468 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_604b8a21-82b5-484d-8ae3-035168cbcde0/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-12-01 23:15:27,735 INFO L229 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 95 check-sat command(s) [2024-12-01 23:15:27,735 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-01 23:15:27,738 INFO L256 TraceCheckSpWp]: Trace formula consists of 955 conjuncts, 96 conjuncts are in the unsatisfiable core [2024-12-01 23:15:27,743 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-01 23:15:28,253 INFO L134 CoverageAnalysis]: Checked inductivity of 26790 backedges. 0 proven. 26790 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-01 23:15:28,253 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-01 23:15:37,041 INFO L134 CoverageAnalysis]: Checked inductivity of 26790 backedges. 0 proven. 26790 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-01 23:15:37,041 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [932954531] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-01 23:15:37,041 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-01 23:15:37,041 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [96, 96, 96] total 191 [2024-12-01 23:15:37,041 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1679849836] [2024-12-01 23:15:37,041 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-01 23:15:37,043 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 192 states [2024-12-01 23:15:37,043 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 23:15:37,049 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 192 interpolants. [2024-12-01 23:15:37,055 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18336, Invalid=18336, Unknown=0, NotChecked=0, Total=36672 [2024-12-01 23:15:37,056 INFO L87 Difference]: Start difference. First operand 586 states and 589 transitions. Second operand has 192 states, 191 states have (on average 5.984293193717278) internal successors, (1143), 192 states have internal predecessors, (1143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 23:15:43,022 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-01 23:15:43,023 INFO L93 Difference]: Finished difference Result 3428 states and 4187 transitions. [2024-12-01 23:15:43,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 192 states. [2024-12-01 23:15:43,023 INFO L78 Accepts]: Start accepts. Automaton has has 192 states, 191 states have (on average 5.984293193717278) internal successors, (1143), 192 states have internal predecessors, (1143), 0 states have call successors, (0), 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 572 [2024-12-01 23:15:43,024 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-01 23:15:43,028 INFO L225 Difference]: With dead ends: 3428 [2024-12-01 23:15:43,028 INFO L226 Difference]: Without dead ends: 1162 [2024-12-01 23:15:43,033 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 1238 GetRequests, 1048 SyntacticMatches, 0 SemanticMatches, 190 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 11.1s TimeCoverageRelationStatistics Valid=18336, Invalid=18336, Unknown=0, NotChecked=0, Total=36672 [2024-12-01 23:15:43,033 INFO L435 NwaCegarLoop]: 292 mSDtfsCounter, 1816 mSDsluCounter, 2082 mSDsCounter, 0 mSdLazyCounter, 1778 mSolverCounterSat, 554 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1816 SdHoareTripleChecker+Valid, 2374 SdHoareTripleChecker+Invalid, 2332 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 554 IncrementalHoareTripleChecker+Valid, 1778 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-12-01 23:15:43,034 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1816 Valid, 2374 Invalid, 2332 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [554 Valid, 1778 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-12-01 23:15:43,035 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1162 states. [2024-12-01 23:15:43,064 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1162 to 1162. [2024-12-01 23:15:43,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1162 states, 1160 states have (on average 1.0043103448275863) internal successors, (1165), 1161 states have internal predecessors, (1165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 23:15:43,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1162 states to 1162 states and 1165 transitions. [2024-12-01 23:15:43,069 INFO L78 Accepts]: Start accepts. Automaton has 1162 states and 1165 transitions. Word has length 572 [2024-12-01 23:15:43,070 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-01 23:15:43,070 INFO L471 AbstractCegarLoop]: Abstraction has 1162 states and 1165 transitions. [2024-12-01 23:15:43,071 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 192 states, 191 states have (on average 5.984293193717278) internal successors, (1143), 192 states have internal predecessors, (1143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 23:15:43,071 INFO L276 IsEmpty]: Start isEmpty. Operand 1162 states and 1165 transitions. [2024-12-01 23:15:43,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1149 [2024-12-01 23:15:43,115 INFO L210 NwaCegarLoop]: Found error trace [2024-12-01 23:15:43,115 INFO L218 NwaCegarLoop]: trace histogram [191, 191, 191, 191, 191, 190, 1, 1, 1] [2024-12-01 23:15:43,124 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_604b8a21-82b5-484d-8ae3-035168cbcde0/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-12-01 23:15:43,315 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_604b8a21-82b5-484d-8ae3-035168cbcde0/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2024-12-01 23:15:43,316 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-12-01 23:15:43,316 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 23:15:43,317 INFO L85 PathProgramCache]: Analyzing trace with hash 157497966, now seen corresponding path program 7 times [2024-12-01 23:15:43,317 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 23:15:43,317 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1704037370] [2024-12-01 23:15:43,317 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-12-01 23:15:43,317 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 23:15:43,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 23:16:08,865 INFO L134 CoverageAnalysis]: Checked inductivity of 108870 backedges. 0 proven. 108870 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-01 23:16:08,865 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 23:16:08,865 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1704037370] [2024-12-01 23:16:08,865 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1704037370] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-01 23:16:08,865 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1341946999] [2024-12-01 23:16:08,865 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-12-01 23:16:08,865 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-01 23:16:08,866 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_604b8a21-82b5-484d-8ae3-035168cbcde0/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-01 23:16:08,867 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_604b8a21-82b5-484d-8ae3-035168cbcde0/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-01 23:16:08,868 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_604b8a21-82b5-484d-8ae3-035168cbcde0/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-12-01 23:16:09,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 23:16:09,122 INFO L256 TraceCheckSpWp]: Trace formula consists of 1915 conjuncts, 192 conjuncts are in the unsatisfiable core [2024-12-01 23:16:09,131 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-01 23:16:10,118 INFO L134 CoverageAnalysis]: Checked inductivity of 108870 backedges. 0 proven. 108870 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-01 23:16:10,119 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-01 23:16:44,435 INFO L134 CoverageAnalysis]: Checked inductivity of 108870 backedges. 0 proven. 108870 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-01 23:16:44,436 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1341946999] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-01 23:16:44,436 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-01 23:16:44,436 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [192, 192, 192] total 383 [2024-12-01 23:16:44,436 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [564597448] [2024-12-01 23:16:44,436 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-01 23:16:44,438 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 384 states [2024-12-01 23:16:44,438 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 23:16:44,459 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 384 interpolants. [2024-12-01 23:16:44,471 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=73536, Invalid=73536, Unknown=0, NotChecked=0, Total=147072 [2024-12-01 23:16:44,472 INFO L87 Difference]: Start difference. First operand 1162 states and 1165 transitions. Second operand has 384 states, 383 states have (on average 5.992167101827676) internal successors, (2295), 384 states have internal predecessors, (2295), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 23:17:47,406 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-01 23:17:47,406 INFO L93 Difference]: Finished difference Result 6884 states and 8411 transitions. [2024-12-01 23:17:47,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 384 states. [2024-12-01 23:17:47,407 INFO L78 Accepts]: Start accepts. Automaton has has 384 states, 383 states have (on average 5.992167101827676) internal successors, (2295), 384 states have internal predecessors, (2295), 0 states have call successors, (0), 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 1148 [2024-12-01 23:17:47,408 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-01 23:17:47,412 INFO L225 Difference]: With dead ends: 6884 [2024-12-01 23:17:47,412 INFO L226 Difference]: Without dead ends: 2314 [2024-12-01 23:17:47,418 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2486 GetRequests, 2104 SyntacticMatches, 0 SemanticMatches, 382 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 44.0s TimeCoverageRelationStatistics Valid=73536, Invalid=73536, Unknown=0, NotChecked=0, Total=147072 [2024-12-01 23:17:47,419 INFO L435 NwaCegarLoop]: 580 mSDtfsCounter, 4952 mSDsluCounter, 4730 mSDsCounter, 0 mSdLazyCounter, 3926 mSolverCounterSat, 1434 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4952 SdHoareTripleChecker+Valid, 5310 SdHoareTripleChecker+Invalid, 5360 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1434 IncrementalHoareTripleChecker+Valid, 3926 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2024-12-01 23:17:47,419 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4952 Valid, 5310 Invalid, 5360 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1434 Valid, 3926 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2024-12-01 23:17:47,422 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2314 states. [2024-12-01 23:17:47,454 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2314 to 2314. [2024-12-01 23:17:47,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2314 states, 2312 states have (on average 1.0021626297577855) internal successors, (2317), 2313 states have internal predecessors, (2317), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 23:17:47,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2314 states to 2314 states and 2317 transitions. [2024-12-01 23:17:47,461 INFO L78 Accepts]: Start accepts. Automaton has 2314 states and 2317 transitions. Word has length 1148 [2024-12-01 23:17:47,462 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-01 23:17:47,462 INFO L471 AbstractCegarLoop]: Abstraction has 2314 states and 2317 transitions. [2024-12-01 23:17:47,463 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 384 states, 383 states have (on average 5.992167101827676) internal successors, (2295), 384 states have internal predecessors, (2295), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 23:17:47,463 INFO L276 IsEmpty]: Start isEmpty. Operand 2314 states and 2317 transitions. [2024-12-01 23:17:47,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2301 [2024-12-01 23:17:47,484 INFO L210 NwaCegarLoop]: Found error trace [2024-12-01 23:17:47,485 INFO L218 NwaCegarLoop]: trace histogram [383, 383, 383, 383, 383, 382, 1, 1, 1] [2024-12-01 23:17:47,495 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_604b8a21-82b5-484d-8ae3-035168cbcde0/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2024-12-01 23:17:47,685 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_604b8a21-82b5-484d-8ae3-035168cbcde0/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2024-12-01 23:17:47,685 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-12-01 23:17:47,686 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 23:17:47,686 INFO L85 PathProgramCache]: Analyzing trace with hash -2030102162, now seen corresponding path program 8 times [2024-12-01 23:17:47,686 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 23:17:47,686 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1783208571] [2024-12-01 23:17:47,686 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-12-01 23:17:47,686 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 23:17:48,928 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-12-01 23:17:48,929 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-01 23:20:23,233 INFO L134 CoverageAnalysis]: Checked inductivity of 438918 backedges. 0 proven. 438918 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-01 23:20:23,233 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 23:20:23,233 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1783208571] [2024-12-01 23:20:23,233 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1783208571] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-01 23:20:23,233 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2123956951] [2024-12-01 23:20:23,233 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-12-01 23:20:23,233 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-01 23:20:23,233 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_604b8a21-82b5-484d-8ae3-035168cbcde0/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-01 23:20:23,235 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_604b8a21-82b5-484d-8ae3-035168cbcde0/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-01 23:20:23,236 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_604b8a21-82b5-484d-8ae3-035168cbcde0/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-12-01 23:20:23,732 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-12-01 23:20:23,732 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-01 23:20:23,772 INFO L256 TraceCheckSpWp]: Trace formula consists of 3835 conjuncts, 384 conjuncts are in the unsatisfiable core [2024-12-01 23:20:23,793 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-01 23:20:25,703 INFO L134 CoverageAnalysis]: Checked inductivity of 438918 backedges. 0 proven. 438918 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-01 23:20:25,703 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-01 23:22:47,086 INFO L134 CoverageAnalysis]: Checked inductivity of 438918 backedges. 0 proven. 438918 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-01 23:22:47,086 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2123956951] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-01 23:22:47,086 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-01 23:22:47,087 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [384, 384, 384] total 767 [2024-12-01 23:22:47,087 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [713407770] [2024-12-01 23:22:47,087 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-01 23:22:47,089 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 768 states [2024-12-01 23:22:47,089 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 23:22:47,123 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 768 interpolants. [2024-12-01 23:22:47,136 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=294528, Invalid=294528, Unknown=0, NotChecked=0, Total=589056 [2024-12-01 23:22:47,137 INFO L87 Difference]: Start difference. First operand 2314 states and 2317 transitions. Second operand has 768 states, 767 states have (on average 5.996088657105607) internal successors, (4599), 768 states have internal predecessors, (4599), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)