./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/nla-digbench/ps5.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 826ab2ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9adbf25b-2095-4346-a82b-1e4036a35d84/bin/uautomizer-verify-qhAvR1uOyd/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9adbf25b-2095-4346-a82b-1e4036a35d84/bin/uautomizer-verify-qhAvR1uOyd/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9adbf25b-2095-4346-a82b-1e4036a35d84/bin/uautomizer-verify-qhAvR1uOyd/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9adbf25b-2095-4346-a82b-1e4036a35d84/bin/uautomizer-verify-qhAvR1uOyd/config/AutomizerReach.xml -i ../../sv-benchmarks/c/nla-digbench/ps5.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9adbf25b-2095-4346-a82b-1e4036a35d84/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9adbf25b-2095-4346-a82b-1e4036a35d84/bin/uautomizer-verify-qhAvR1uOyd --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 75035fa3f0906c231d17ae5ee7268afeafad4874ea03c5ffa88d3c2d4999f0b5 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 15:56:18,997 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 15:56:19,058 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9adbf25b-2095-4346-a82b-1e4036a35d84/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-13 15:56:19,063 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-13 15:56:19,063 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-13 15:56:19,085 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 15:56:19,085 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-13 15:56:19,086 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-13 15:56:19,086 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-13 15:56:19,086 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-13 15:56:19,086 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-13 15:56:19,086 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-13 15:56:19,087 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-13 15:56:19,087 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-13 15:56:19,087 INFO L153 SettingsManager]: * Use SBE=true [2024-11-13 15:56:19,087 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 15:56:19,087 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-13 15:56:19,087 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-13 15:56:19,088 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-13 15:56:19,088 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-13 15:56:19,088 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 15:56:19,088 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-13 15:56:19,088 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-13 15:56:19,088 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-13 15:56:19,089 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 15:56:19,089 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-13 15:56:19,089 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-13 15:56:19,089 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-13 15:56:19,089 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-13 15:56:19,089 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 15:56:19,089 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 15:56:19,090 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-13 15:56:19,090 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-13 15:56:19,090 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-13 15:56:19,090 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 15:56:19,090 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 15:56:19,090 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-13 15:56:19,090 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-13 15:56:19,091 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-13 15:56:19,091 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-13 15:56:19,091 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-13 15:56:19,091 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-13 15:56:19,091 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-13 15:56:19,091 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-13 15:56:19,091 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_9adbf25b-2095-4346-a82b-1e4036a35d84/bin/uautomizer-verify-qhAvR1uOyd Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 75035fa3f0906c231d17ae5ee7268afeafad4874ea03c5ffa88d3c2d4999f0b5 [2024-11-13 15:56:19,386 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 15:56:19,397 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 15:56:19,400 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 15:56:19,402 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 15:56:19,402 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 15:56:19,405 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9adbf25b-2095-4346-a82b-1e4036a35d84/bin/uautomizer-verify-qhAvR1uOyd/../../sv-benchmarks/c/nla-digbench/ps5.c Unable to find full path for "g++" [2024-11-13 15:56:21,443 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 15:56:21,748 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 15:56:21,748 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9adbf25b-2095-4346-a82b-1e4036a35d84/sv-benchmarks/c/nla-digbench/ps5.c [2024-11-13 15:56:21,757 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9adbf25b-2095-4346-a82b-1e4036a35d84/bin/uautomizer-verify-qhAvR1uOyd/data/c3c0402a2/5fefa1f7bdbe4bb2ac776c039b01bbca/FLAGa03408ab8 [2024-11-13 15:56:21,780 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9adbf25b-2095-4346-a82b-1e4036a35d84/bin/uautomizer-verify-qhAvR1uOyd/data/c3c0402a2/5fefa1f7bdbe4bb2ac776c039b01bbca [2024-11-13 15:56:21,783 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 15:56:21,787 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 15:56:21,790 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 15:56:21,791 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 15:56:21,801 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 15:56:21,802 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 03:56:21" (1/1) ... [2024-11-13 15:56:21,804 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3e5bfc58 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:56:21, skipping insertion in model container [2024-11-13 15:56:21,806 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 03:56:21" (1/1) ... [2024-11-13 15:56:21,825 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 15:56:22,064 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 15:56:22,082 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 15:56:22,116 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 15:56:22,137 INFO L204 MainTranslator]: Completed translation [2024-11-13 15:56:22,138 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:56:22 WrapperNode [2024-11-13 15:56:22,139 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 15:56:22,140 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 15:56:22,141 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 15:56:22,141 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 15:56:22,150 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:56:22" (1/1) ... [2024-11-13 15:56:22,162 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:56:22" (1/1) ... [2024-11-13 15:56:22,208 INFO L138 Inliner]: procedures = 14, calls = 17, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 129 [2024-11-13 15:56:22,212 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 15:56:22,213 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 15:56:22,213 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 15:56:22,213 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 15:56:22,228 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:56:22" (1/1) ... [2024-11-13 15:56:22,228 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:56:22" (1/1) ... [2024-11-13 15:56:22,232 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:56:22" (1/1) ... [2024-11-13 15:56:22,249 INFO L175 MemorySlicer]: Split 8 memory accesses to 2 slices as follows [2, 6]. 75 percent of accesses are in the largest equivalence class. The 8 initializations are split as follows [2, 6]. The 0 writes are split as follows [0, 0]. [2024-11-13 15:56:22,250 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:56:22" (1/1) ... [2024-11-13 15:56:22,250 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:56:22" (1/1) ... [2024-11-13 15:56:22,254 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:56:22" (1/1) ... [2024-11-13 15:56:22,258 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:56:22" (1/1) ... [2024-11-13 15:56:22,264 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:56:22" (1/1) ... [2024-11-13 15:56:22,265 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:56:22" (1/1) ... [2024-11-13 15:56:22,269 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 15:56:22,274 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 15:56:22,274 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 15:56:22,274 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 15:56:22,275 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:56:22" (1/1) ... [2024-11-13 15:56:22,287 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 15:56:22,304 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9adbf25b-2095-4346-a82b-1e4036a35d84/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:56:22,318 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9adbf25b-2095-4346-a82b-1e4036a35d84/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-13 15:56:22,322 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9adbf25b-2095-4346-a82b-1e4036a35d84/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-13 15:56:22,359 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-13 15:56:22,360 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-13 15:56:22,360 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-13 15:56:22,360 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 15:56:22,360 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 15:56:22,362 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-13 15:56:22,362 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-13 15:56:22,453 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 15:56:22,455 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 15:56:23,349 INFO L? ?]: Removed 88 outVars from TransFormulas that were not future-live. [2024-11-13 15:56:23,349 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 15:56:23,369 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 15:56:23,370 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-13 15:56:23,370 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 03:56:23 BoogieIcfgContainer [2024-11-13 15:56:23,370 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 15:56:23,374 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-13 15:56:23,374 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-13 15:56:23,380 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-13 15:56:23,380 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 03:56:21" (1/3) ... [2024-11-13 15:56:23,381 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1261d0d2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 03:56:23, skipping insertion in model container [2024-11-13 15:56:23,381 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:56:22" (2/3) ... [2024-11-13 15:56:23,382 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1261d0d2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 03:56:23, skipping insertion in model container [2024-11-13 15:56:23,382 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 03:56:23" (3/3) ... [2024-11-13 15:56:23,383 INFO L112 eAbstractionObserver]: Analyzing ICFG ps5.c [2024-11-13 15:56:23,402 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-13 15:56:23,404 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG ps5.c that has 2 procedures, 185 locations, 1 initial locations, 1 loop locations, and 84 error locations. [2024-11-13 15:56:23,494 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-13 15:56:23,514 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;@1fd40dc0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-13 15:56:23,515 INFO L334 AbstractCegarLoop]: Starting to check reachability of 84 error locations. [2024-11-13 15:56:23,522 INFO L276 IsEmpty]: Start isEmpty. Operand has 185 states, 96 states have (on average 1.9166666666666667) internal successors, (184), 180 states have internal predecessors, (184), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-13 15:56:23,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2024-11-13 15:56:23,530 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:56:23,531 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2024-11-13 15:56:23,531 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr46ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 81 more)] === [2024-11-13 15:56:23,537 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:56:23,540 INFO L85 PathProgramCache]: Analyzing trace with hash 925803, now seen corresponding path program 1 times [2024-11-13 15:56:23,549 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:56:23,550 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1955023206] [2024-11-13 15:56:23,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:56:23,552 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:56:23,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:56:23,729 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:56:23,729 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:56:23,730 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1955023206] [2024-11-13 15:56:23,730 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1955023206] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:56:23,731 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:56:23,731 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-13 15:56:23,732 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [720300845] [2024-11-13 15:56:23,733 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:56:23,737 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-13 15:56:23,737 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:56:23,756 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-13 15:56:23,757 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-13 15:56:23,759 INFO L87 Difference]: Start difference. First operand has 185 states, 96 states have (on average 1.9166666666666667) internal successors, (184), 180 states have internal predecessors, (184), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 2 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:56:23,807 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:56:23,809 INFO L93 Difference]: Finished difference Result 354 states and 380 transitions. [2024-11-13 15:56:23,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-13 15:56:23,811 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2024-11-13 15:56:23,812 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:56:23,822 INFO L225 Difference]: With dead ends: 354 [2024-11-13 15:56:23,822 INFO L226 Difference]: Without dead ends: 165 [2024-11-13 15:56:23,826 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-13 15:56:23,833 INFO L432 NwaCegarLoop]: 173 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 173 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-13 15:56:23,834 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 173 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-13 15:56:23,849 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 165 states. [2024-11-13 15:56:23,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 165 to 165. [2024-11-13 15:56:23,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 165 states, 91 states have (on average 1.7802197802197801) internal successors, (162), 161 states have internal predecessors, (162), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-13 15:56:23,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 165 states to 165 states and 166 transitions. [2024-11-13 15:56:23,892 INFO L78 Accepts]: Start accepts. Automaton has 165 states and 166 transitions. Word has length 4 [2024-11-13 15:56:23,892 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:56:23,893 INFO L471 AbstractCegarLoop]: Abstraction has 165 states and 166 transitions. [2024-11-13 15:56:23,893 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:56:23,893 INFO L276 IsEmpty]: Start isEmpty. Operand 165 states and 166 transitions. [2024-11-13 15:56:23,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2024-11-13 15:56:23,896 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:56:23,896 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2024-11-13 15:56:23,896 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-13 15:56:23,897 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 81 more)] === [2024-11-13 15:56:23,897 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:56:23,898 INFO L85 PathProgramCache]: Analyzing trace with hash 925764, now seen corresponding path program 1 times [2024-11-13 15:56:23,898 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:56:23,898 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1618345703] [2024-11-13 15:56:23,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:56:23,898 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:56:23,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:56:23,984 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:56:23,984 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:56:23,984 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1618345703] [2024-11-13 15:56:23,985 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1618345703] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:56:23,985 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:56:23,985 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-13 15:56:23,985 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1193551879] [2024-11-13 15:56:23,985 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:56:23,986 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 15:56:23,987 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:56:23,987 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 15:56:23,988 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 15:56:23,988 INFO L87 Difference]: Start difference. First operand 165 states and 166 transitions. Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:56:24,678 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:56:24,678 INFO L93 Difference]: Finished difference Result 302 states and 313 transitions. [2024-11-13 15:56:24,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 15:56:24,680 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2024-11-13 15:56:24,680 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:56:24,681 INFO L225 Difference]: With dead ends: 302 [2024-11-13 15:56:24,683 INFO L226 Difference]: Without dead ends: 246 [2024-11-13 15:56:24,683 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 15:56:24,684 INFO L432 NwaCegarLoop]: 89 mSDtfsCounter, 82 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 219 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 84 SdHoareTripleChecker+Valid, 112 SdHoareTripleChecker+Invalid, 269 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 219 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-13 15:56:24,685 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [84 Valid, 112 Invalid, 269 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 219 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-13 15:56:24,686 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 246 states. [2024-11-13 15:56:24,711 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 246 to 240. [2024-11-13 15:56:24,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 240 states, 165 states have (on average 1.5151515151515151) internal successors, (250), 235 states have internal predecessors, (250), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-13 15:56:24,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 240 states to 240 states and 256 transitions. [2024-11-13 15:56:24,717 INFO L78 Accepts]: Start accepts. Automaton has 240 states and 256 transitions. Word has length 4 [2024-11-13 15:56:24,717 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:56:24,717 INFO L471 AbstractCegarLoop]: Abstraction has 240 states and 256 transitions. [2024-11-13 15:56:24,717 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:56:24,718 INFO L276 IsEmpty]: Start isEmpty. Operand 240 states and 256 transitions. [2024-11-13 15:56:24,718 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2024-11-13 15:56:24,718 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:56:24,718 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:56:24,718 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-13 15:56:24,719 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 81 more)] === [2024-11-13 15:56:24,719 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:56:24,719 INFO L85 PathProgramCache]: Analyzing trace with hash 1584846688, now seen corresponding path program 1 times [2024-11-13 15:56:24,719 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:56:24,719 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1486837478] [2024-11-13 15:56:24,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:56:24,720 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:56:24,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:56:24,895 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:56:24,896 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:56:24,896 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1486837478] [2024-11-13 15:56:24,896 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1486837478] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:56:24,896 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:56:24,896 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-13 15:56:24,897 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1829371140] [2024-11-13 15:56:24,897 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:56:24,897 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 15:56:24,897 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:56:24,898 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 15:56:24,898 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 15:56:24,898 INFO L87 Difference]: Start difference. First operand 240 states and 256 transitions. Second operand has 3 states, 2 states have (on average 16.0) internal successors, (32), 3 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:56:25,020 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:56:25,021 INFO L93 Difference]: Finished difference Result 259 states and 270 transitions. [2024-11-13 15:56:25,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 15:56:25,021 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 16.0) internal successors, (32), 3 states have internal predecessors, (32), 0 states have call successors, (0), 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 [2024-11-13 15:56:25,022 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:56:25,023 INFO L225 Difference]: With dead ends: 259 [2024-11-13 15:56:25,023 INFO L226 Difference]: Without dead ends: 254 [2024-11-13 15:56:25,024 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 15:56:25,025 INFO L432 NwaCegarLoop]: 144 mSDtfsCounter, 58 mSDsluCounter, 137 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 281 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-13 15:56:25,025 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [59 Valid, 281 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-13 15:56:25,027 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 254 states. [2024-11-13 15:56:25,037 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 254 to 247. [2024-11-13 15:56:25,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 247 states, 172 states have (on average 1.494186046511628) internal successors, (257), 242 states have internal predecessors, (257), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-13 15:56:25,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 247 states to 247 states and 263 transitions. [2024-11-13 15:56:25,040 INFO L78 Accepts]: Start accepts. Automaton has 247 states and 263 transitions. Word has length 32 [2024-11-13 15:56:25,041 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:56:25,041 INFO L471 AbstractCegarLoop]: Abstraction has 247 states and 263 transitions. [2024-11-13 15:56:25,041 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 16.0) internal successors, (32), 3 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:56:25,041 INFO L276 IsEmpty]: Start isEmpty. Operand 247 states and 263 transitions. [2024-11-13 15:56:25,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2024-11-13 15:56:25,042 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:56:25,042 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:56:25,042 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-13 15:56:25,042 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 81 more)] === [2024-11-13 15:56:25,042 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:56:25,043 INFO L85 PathProgramCache]: Analyzing trace with hash -1675719710, now seen corresponding path program 1 times [2024-11-13 15:56:25,043 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:56:25,043 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1283470900] [2024-11-13 15:56:25,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:56:25,043 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:56:25,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:56:25,218 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:56:25,219 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:56:25,220 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1283470900] [2024-11-13 15:56:25,220 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1283470900] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:56:25,220 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:56:25,221 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 15:56:25,221 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [316425427] [2024-11-13 15:56:25,221 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:56:25,221 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 15:56:25,222 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:56:25,223 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 15:56:25,223 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-13 15:56:25,223 INFO L87 Difference]: Start difference. First operand 247 states and 263 transitions. Second operand has 4 states, 3 states have (on average 11.333333333333334) internal successors, (34), 4 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:56:26,182 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:56:26,183 INFO L93 Difference]: Finished difference Result 258 states and 265 transitions. [2024-11-13 15:56:26,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-13 15:56:26,183 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 11.333333333333334) internal successors, (34), 4 states have internal predecessors, (34), 0 states have call successors, (0), 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 34 [2024-11-13 15:56:26,184 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:56:26,185 INFO L225 Difference]: With dead ends: 258 [2024-11-13 15:56:26,185 INFO L226 Difference]: Without dead ends: 253 [2024-11-13 15:56:26,185 INFO L431 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 [2024-11-13 15:56:26,186 INFO L432 NwaCegarLoop]: 81 mSDtfsCounter, 81 mSDsluCounter, 152 mSDsCounter, 0 mSdLazyCounter, 263 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 82 SdHoareTripleChecker+Valid, 233 SdHoareTripleChecker+Invalid, 269 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 263 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-13 15:56:26,187 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [82 Valid, 233 Invalid, 269 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 263 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-13 15:56:26,188 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 253 states. [2024-11-13 15:56:26,199 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 253 to 247. [2024-11-13 15:56:26,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 247 states, 172 states have (on average 1.4651162790697674) internal successors, (252), 242 states have internal predecessors, (252), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-13 15:56:26,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 247 states to 247 states and 258 transitions. [2024-11-13 15:56:26,201 INFO L78 Accepts]: Start accepts. Automaton has 247 states and 258 transitions. Word has length 34 [2024-11-13 15:56:26,201 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:56:26,201 INFO L471 AbstractCegarLoop]: Abstraction has 247 states and 258 transitions. [2024-11-13 15:56:26,201 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 11.333333333333334) internal successors, (34), 4 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:56:26,202 INFO L276 IsEmpty]: Start isEmpty. Operand 247 states and 258 transitions. [2024-11-13 15:56:26,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2024-11-13 15:56:26,202 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:56:26,202 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:56:26,202 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-13 15:56:26,203 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 81 more)] === [2024-11-13 15:56:26,203 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:56:26,203 INFO L85 PathProgramCache]: Analyzing trace with hash -407703354, now seen corresponding path program 1 times [2024-11-13 15:56:26,203 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:56:26,203 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1073780114] [2024-11-13 15:56:26,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:56:26,203 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:56:26,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:56:26,374 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:56:26,374 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:56:26,374 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1073780114] [2024-11-13 15:56:26,375 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1073780114] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:56:26,375 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:56:26,375 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 15:56:26,375 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [63120113] [2024-11-13 15:56:26,377 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:56:26,377 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 15:56:26,378 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:56:26,378 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 15:56:26,378 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-13 15:56:26,378 INFO L87 Difference]: Start difference. First operand 247 states and 258 transitions. Second operand has 4 states, 3 states have (on average 11.666666666666666) internal successors, (35), 4 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:56:26,614 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:56:26,614 INFO L93 Difference]: Finished difference Result 257 states and 260 transitions. [2024-11-13 15:56:26,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-13 15:56:26,615 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 11.666666666666666) internal successors, (35), 4 states have internal predecessors, (35), 0 states have call successors, (0), 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 35 [2024-11-13 15:56:26,615 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:56:26,616 INFO L225 Difference]: With dead ends: 257 [2024-11-13 15:56:26,616 INFO L226 Difference]: Without dead ends: 219 [2024-11-13 15:56:26,616 INFO L431 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 [2024-11-13 15:56:26,617 INFO L432 NwaCegarLoop]: 94 mSDtfsCounter, 125 mSDsluCounter, 137 mSDsCounter, 0 mSdLazyCounter, 111 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 126 SdHoareTripleChecker+Valid, 231 SdHoareTripleChecker+Invalid, 116 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 111 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-13 15:56:26,617 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [126 Valid, 231 Invalid, 116 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 111 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-13 15:56:26,618 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 219 states. [2024-11-13 15:56:26,627 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 219 to 213. [2024-11-13 15:56:26,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 213 states, 138 states have (on average 1.5507246376811594) internal successors, (214), 208 states have internal predecessors, (214), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-13 15:56:26,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 213 states to 213 states and 220 transitions. [2024-11-13 15:56:26,629 INFO L78 Accepts]: Start accepts. Automaton has 213 states and 220 transitions. Word has length 35 [2024-11-13 15:56:26,630 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:56:26,630 INFO L471 AbstractCegarLoop]: Abstraction has 213 states and 220 transitions. [2024-11-13 15:56:26,630 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 11.666666666666666) internal successors, (35), 4 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:56:26,630 INFO L276 IsEmpty]: Start isEmpty. Operand 213 states and 220 transitions. [2024-11-13 15:56:26,635 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2024-11-13 15:56:26,636 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:56:26,636 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:56:26,636 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-13 15:56:26,636 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 81 more)] === [2024-11-13 15:56:26,637 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:56:26,637 INFO L85 PathProgramCache]: Analyzing trace with hash -226796271, now seen corresponding path program 1 times [2024-11-13 15:56:26,637 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:56:26,637 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2120106033] [2024-11-13 15:56:26,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:56:26,637 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:56:26,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:56:26,742 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-11-13 15:56:26,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:56:26,751 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:56:26,751 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:56:26,751 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2120106033] [2024-11-13 15:56:26,751 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2120106033] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:56:26,751 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:56:26,752 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-13 15:56:26,752 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1994945141] [2024-11-13 15:56:26,752 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:56:26,752 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 15:56:26,752 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:56:26,753 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 15:56:26,753 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 15:56:26,754 INFO L87 Difference]: Start difference. First operand 213 states and 220 transitions. Second operand has 3 states, 2 states have (on average 21.0) internal successors, (42), 3 states have internal predecessors, (42), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-13 15:56:26,779 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:56:26,779 INFO L93 Difference]: Finished difference Result 215 states and 220 transitions. [2024-11-13 15:56:26,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 15:56:26,780 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 21.0) internal successors, (42), 3 states have internal predecessors, (42), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 44 [2024-11-13 15:56:26,780 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:56:26,781 INFO L225 Difference]: With dead ends: 215 [2024-11-13 15:56:26,781 INFO L226 Difference]: Without dead ends: 213 [2024-11-13 15:56:26,781 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 15:56:26,782 INFO L432 NwaCegarLoop]: 163 mSDtfsCounter, 1 mSDsluCounter, 159 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 322 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-13 15:56:26,797 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 322 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-13 15:56:26,798 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 213 states. [2024-11-13 15:56:26,807 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 213 to 213. [2024-11-13 15:56:26,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 213 states, 138 states have (on average 1.536231884057971) internal successors, (212), 208 states have internal predecessors, (212), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-13 15:56:26,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 213 states to 213 states and 218 transitions. [2024-11-13 15:56:26,810 INFO L78 Accepts]: Start accepts. Automaton has 213 states and 218 transitions. Word has length 44 [2024-11-13 15:56:26,811 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:56:26,811 INFO L471 AbstractCegarLoop]: Abstraction has 213 states and 218 transitions. [2024-11-13 15:56:26,811 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 21.0) internal successors, (42), 3 states have internal predecessors, (42), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-13 15:56:26,812 INFO L276 IsEmpty]: Start isEmpty. Operand 213 states and 218 transitions. [2024-11-13 15:56:26,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2024-11-13 15:56:26,813 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:56:26,813 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:56:26,813 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-13 15:56:26,813 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr39ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 81 more)] === [2024-11-13 15:56:26,813 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:56:26,814 INFO L85 PathProgramCache]: Analyzing trace with hash 953180425, now seen corresponding path program 1 times [2024-11-13 15:56:26,814 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:56:26,814 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [883773081] [2024-11-13 15:56:26,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:56:26,814 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:56:26,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-13 15:56:26,838 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [763595163] [2024-11-13 15:56:26,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:56:26,839 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 15:56:26,839 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9adbf25b-2095-4346-a82b-1e4036a35d84/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:56:26,841 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9adbf25b-2095-4346-a82b-1e4036a35d84/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 15:56:26,844 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9adbf25b-2095-4346-a82b-1e4036a35d84/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-13 15:56:26,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:56:26,946 INFO L255 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-13 15:56:26,950 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:56:27,120 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:56:27,120 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 15:56:27,120 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:56:27,120 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [883773081] [2024-11-13 15:56:27,121 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-13 15:56:27,121 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [763595163] [2024-11-13 15:56:27,121 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [763595163] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:56:27,121 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:56:27,122 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 15:56:27,122 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [387177296] [2024-11-13 15:56:27,122 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:56:27,122 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 15:56:27,122 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:56:27,123 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 15:56:27,123 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-13 15:56:27,123 INFO L87 Difference]: Start difference. First operand 213 states and 218 transitions. Second operand has 4 states, 3 states have (on average 15.666666666666666) internal successors, (47), 4 states have internal predecessors, (47), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-13 15:56:27,682 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:56:27,682 INFO L93 Difference]: Finished difference Result 352 states and 367 transitions. [2024-11-13 15:56:27,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-13 15:56:27,682 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 15.666666666666666) internal successors, (47), 4 states have internal predecessors, (47), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 49 [2024-11-13 15:56:27,683 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:56:27,684 INFO L225 Difference]: With dead ends: 352 [2024-11-13 15:56:27,684 INFO L226 Difference]: Without dead ends: 298 [2024-11-13 15:56:27,685 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-13 15:56:27,685 INFO L432 NwaCegarLoop]: 86 mSDtfsCounter, 90 mSDsluCounter, 45 mSDsCounter, 0 mSdLazyCounter, 411 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 131 SdHoareTripleChecker+Invalid, 462 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 411 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-13 15:56:27,686 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [92 Valid, 131 Invalid, 462 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 411 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-13 15:56:27,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 298 states. [2024-11-13 15:56:27,707 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 298 to 292. [2024-11-13 15:56:27,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 292 states, 215 states have (on average 1.4093023255813955) internal successors, (303), 285 states have internal predecessors, (303), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-13 15:56:27,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 292 states to 292 states and 313 transitions. [2024-11-13 15:56:27,710 INFO L78 Accepts]: Start accepts. Automaton has 292 states and 313 transitions. Word has length 49 [2024-11-13 15:56:27,710 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:56:27,710 INFO L471 AbstractCegarLoop]: Abstraction has 292 states and 313 transitions. [2024-11-13 15:56:27,710 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 15.666666666666666) internal successors, (47), 4 states have internal predecessors, (47), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-13 15:56:27,710 INFO L276 IsEmpty]: Start isEmpty. Operand 292 states and 313 transitions. [2024-11-13 15:56:27,714 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2024-11-13 15:56:27,714 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:56:27,715 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:56:27,739 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9adbf25b-2095-4346-a82b-1e4036a35d84/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-13 15:56:27,921 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9adbf25b-2095-4346-a82b-1e4036a35d84/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 15:56:27,921 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr45ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 81 more)] === [2024-11-13 15:56:27,922 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:56:27,922 INFO L85 PathProgramCache]: Analyzing trace with hash 1462632015, now seen corresponding path program 1 times [2024-11-13 15:56:27,922 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:56:27,922 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [631480547] [2024-11-13 15:56:27,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:56:27,922 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:56:27,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:56:28,090 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-11-13 15:56:28,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:56:28,103 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:56:28,103 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:56:28,103 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [631480547] [2024-11-13 15:56:28,103 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [631480547] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:56:28,103 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:56:28,103 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 15:56:28,103 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1647358034] [2024-11-13 15:56:28,103 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:56:28,105 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 15:56:28,105 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:56:28,105 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 15:56:28,105 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-13 15:56:28,106 INFO L87 Difference]: Start difference. First operand 292 states and 313 transitions. Second operand has 4 states, 3 states have (on average 17.666666666666668) internal successors, (53), 4 states have internal predecessors, (53), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-13 15:56:28,257 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:56:28,258 INFO L93 Difference]: Finished difference Result 293 states and 313 transitions. [2024-11-13 15:56:28,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-13 15:56:28,259 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 17.666666666666668) internal successors, (53), 4 states have internal predecessors, (53), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 55 [2024-11-13 15:56:28,261 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:56:28,262 INFO L225 Difference]: With dead ends: 293 [2024-11-13 15:56:28,262 INFO L226 Difference]: Without dead ends: 292 [2024-11-13 15:56:28,263 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-13 15:56:28,264 INFO L432 NwaCegarLoop]: 128 mSDtfsCounter, 39 mSDsluCounter, 137 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 265 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-13 15:56:28,264 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [40 Valid, 265 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-13 15:56:28,265 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 292 states. [2024-11-13 15:56:28,277 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 292 to 292. [2024-11-13 15:56:28,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 292 states, 215 states have (on average 1.4046511627906977) internal successors, (302), 285 states have internal predecessors, (302), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-13 15:56:28,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 292 states to 292 states and 312 transitions. [2024-11-13 15:56:28,281 INFO L78 Accepts]: Start accepts. Automaton has 292 states and 312 transitions. Word has length 55 [2024-11-13 15:56:28,281 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:56:28,281 INFO L471 AbstractCegarLoop]: Abstraction has 292 states and 312 transitions. [2024-11-13 15:56:28,282 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 17.666666666666668) internal successors, (53), 4 states have internal predecessors, (53), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-13 15:56:28,282 INFO L276 IsEmpty]: Start isEmpty. Operand 292 states and 312 transitions. [2024-11-13 15:56:28,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2024-11-13 15:56:28,283 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:56:28,283 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:56:28,283 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-13 15:56:28,283 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 81 more)] === [2024-11-13 15:56:28,285 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:56:28,285 INFO L85 PathProgramCache]: Analyzing trace with hash -2136367827, now seen corresponding path program 1 times [2024-11-13 15:56:28,285 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:56:28,285 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1997543765] [2024-11-13 15:56:28,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:56:28,285 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:56:28,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-13 15:56:28,321 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1118304287] [2024-11-13 15:56:28,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:56:28,322 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 15:56:28,322 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9adbf25b-2095-4346-a82b-1e4036a35d84/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:56:28,324 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9adbf25b-2095-4346-a82b-1e4036a35d84/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 15:56:28,326 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9adbf25b-2095-4346-a82b-1e4036a35d84/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-13 15:56:28,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:56:28,397 INFO L255 TraceCheckSpWp]: Trace formula consists of 134 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-13 15:56:28,400 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:56:28,608 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-13 15:56:28,609 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 15:56:28,609 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:56:28,609 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1997543765] [2024-11-13 15:56:28,609 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-13 15:56:28,609 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1118304287] [2024-11-13 15:56:28,609 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1118304287] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:56:28,609 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:56:28,609 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-13 15:56:28,609 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1501854949] [2024-11-13 15:56:28,609 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:56:28,610 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 15:56:28,610 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:56:28,610 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 15:56:28,610 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 15:56:28,611 INFO L87 Difference]: Start difference. First operand 292 states and 312 transitions. Second operand has 3 states, 2 states have (on average 27.0) internal successors, (54), 3 states have internal predecessors, (54), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-13 15:56:28,693 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:56:28,693 INFO L93 Difference]: Finished difference Result 292 states and 312 transitions. [2024-11-13 15:56:28,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 15:56:28,694 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 27.0) internal successors, (54), 3 states have internal predecessors, (54), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 85 [2024-11-13 15:56:28,694 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:56:28,695 INFO L225 Difference]: With dead ends: 292 [2024-11-13 15:56:28,696 INFO L226 Difference]: Without dead ends: 289 [2024-11-13 15:56:28,696 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 82 SyntacticMatches, 1 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 15:56:28,697 INFO L432 NwaCegarLoop]: 138 mSDtfsCounter, 95 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 96 SdHoareTripleChecker+Valid, 144 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-13 15:56:28,697 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [96 Valid, 144 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-13 15:56:28,698 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 289 states. [2024-11-13 15:56:28,706 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 289 to 289. [2024-11-13 15:56:28,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 289 states, 215 states have (on average 1.3813953488372093) internal successors, (297), 282 states have internal predecessors, (297), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-13 15:56:28,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 289 states to 289 states and 307 transitions. [2024-11-13 15:56:28,709 INFO L78 Accepts]: Start accepts. Automaton has 289 states and 307 transitions. Word has length 85 [2024-11-13 15:56:28,709 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:56:28,709 INFO L471 AbstractCegarLoop]: Abstraction has 289 states and 307 transitions. [2024-11-13 15:56:28,709 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 27.0) internal successors, (54), 3 states have internal predecessors, (54), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-13 15:56:28,709 INFO L276 IsEmpty]: Start isEmpty. Operand 289 states and 307 transitions. [2024-11-13 15:56:28,710 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2024-11-13 15:56:28,710 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:56:28,711 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:56:28,731 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9adbf25b-2095-4346-a82b-1e4036a35d84/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-13 15:56:28,915 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9adbf25b-2095-4346-a82b-1e4036a35d84/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 15:56:28,915 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 81 more)] === [2024-11-13 15:56:28,916 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:56:28,916 INFO L85 PathProgramCache]: Analyzing trace with hash -1802893097, now seen corresponding path program 1 times [2024-11-13 15:56:28,916 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:56:28,916 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [446604473] [2024-11-13 15:56:28,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:56:28,916 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:56:28,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-13 15:56:28,940 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1916907404] [2024-11-13 15:56:28,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:56:28,940 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 15:56:28,940 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9adbf25b-2095-4346-a82b-1e4036a35d84/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:56:28,942 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9adbf25b-2095-4346-a82b-1e4036a35d84/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 15:56:28,944 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9adbf25b-2095-4346-a82b-1e4036a35d84/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-13 15:56:29,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:56:29,009 INFO L255 TraceCheckSpWp]: Trace formula consists of 135 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-13 15:56:29,012 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:56:29,407 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 31 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:56:29,408 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 15:56:29,713 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 31 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:56:29,714 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:56:29,714 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [446604473] [2024-11-13 15:56:29,714 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-13 15:56:29,714 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1916907404] [2024-11-13 15:56:29,714 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1916907404] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 15:56:29,714 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-13 15:56:29,714 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2024-11-13 15:56:29,714 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [72374409] [2024-11-13 15:56:29,714 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-13 15:56:29,715 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-13 15:56:29,715 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:56:29,716 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-13 15:56:29,716 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-11-13 15:56:29,716 INFO L87 Difference]: Start difference. First operand 289 states and 307 transitions. Second operand has 8 states, 7 states have (on average 23.428571428571427) internal successors, (164), 8 states have internal predecessors, (164), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-13 15:56:30,863 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:56:30,863 INFO L93 Difference]: Finished difference Result 361 states and 375 transitions. [2024-11-13 15:56:30,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-13 15:56:30,864 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 23.428571428571427) internal successors, (164), 8 states have internal predecessors, (164), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 86 [2024-11-13 15:56:30,864 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:56:30,866 INFO L225 Difference]: With dead ends: 361 [2024-11-13 15:56:30,866 INFO L226 Difference]: Without dead ends: 354 [2024-11-13 15:56:30,867 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 172 GetRequests, 164 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2024-11-13 15:56:30,867 INFO L432 NwaCegarLoop]: 78 mSDtfsCounter, 284 mSDsluCounter, 205 mSDsCounter, 0 mSdLazyCounter, 696 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 286 SdHoareTripleChecker+Valid, 283 SdHoareTripleChecker+Invalid, 711 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 696 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-13 15:56:30,868 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [286 Valid, 283 Invalid, 711 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 696 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-13 15:56:30,869 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 354 states. [2024-11-13 15:56:30,883 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 354 to 327. [2024-11-13 15:56:30,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 327 states, 254 states have (on average 1.4015748031496063) internal successors, (356), 320 states have internal predecessors, (356), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-13 15:56:30,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 327 states to 327 states and 366 transitions. [2024-11-13 15:56:30,886 INFO L78 Accepts]: Start accepts. Automaton has 327 states and 366 transitions. Word has length 86 [2024-11-13 15:56:30,886 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:56:30,887 INFO L471 AbstractCegarLoop]: Abstraction has 327 states and 366 transitions. [2024-11-13 15:56:30,887 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 23.428571428571427) internal successors, (164), 8 states have internal predecessors, (164), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-13 15:56:30,887 INFO L276 IsEmpty]: Start isEmpty. Operand 327 states and 366 transitions. [2024-11-13 15:56:30,888 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2024-11-13 15:56:30,888 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:56:30,888 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:56:30,912 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9adbf25b-2095-4346-a82b-1e4036a35d84/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-13 15:56:31,089 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9adbf25b-2095-4346-a82b-1e4036a35d84/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-11-13 15:56:31,089 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 81 more)] === [2024-11-13 15:56:31,089 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:56:31,089 INFO L85 PathProgramCache]: Analyzing trace with hash -55111057, now seen corresponding path program 1 times [2024-11-13 15:56:31,090 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:56:31,090 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2037191653] [2024-11-13 15:56:31,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:56:31,090 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:56:31,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-13 15:56:31,127 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1753573812] [2024-11-13 15:56:31,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:56:31,128 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 15:56:31,128 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9adbf25b-2095-4346-a82b-1e4036a35d84/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:56:31,130 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9adbf25b-2095-4346-a82b-1e4036a35d84/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 15:56:31,132 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9adbf25b-2095-4346-a82b-1e4036a35d84/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-13 15:56:31,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:56:31,205 INFO L255 TraceCheckSpWp]: Trace formula consists of 136 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-13 15:56:31,207 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:56:31,666 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 32 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:56:31,667 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 15:56:35,260 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 13 proven. 19 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:56:35,260 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:56:35,261 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2037191653] [2024-11-13 15:56:35,261 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-13 15:56:35,261 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1753573812] [2024-11-13 15:56:35,261 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1753573812] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 15:56:35,261 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-13 15:56:35,261 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 5] total 8 [2024-11-13 15:56:35,261 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1584032398] [2024-11-13 15:56:35,265 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-13 15:56:35,266 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-13 15:56:35,266 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:56:35,266 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-13 15:56:35,266 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2024-11-13 15:56:35,267 INFO L87 Difference]: Start difference. First operand 327 states and 366 transitions. Second operand has 9 states, 8 states have (on average 20.75) internal successors, (166), 9 states have internal predecessors, (166), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-13 15:56:38,035 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.45s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-13 15:56:41,921 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.85s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-13 15:56:45,209 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.17s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-13 15:56:49,645 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-13 15:56:52,037 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.64s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-13 15:56:56,117 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-13 15:56:57,785 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.57s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-13 15:57:00,065 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-13 15:57:01,998 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.87s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-13 15:57:06,356 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.29s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-13 15:57:08,150 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.67s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-13 15:57:12,348 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-13 15:57:16,533 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-13 15:57:20,736 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.11s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-13 15:57:22,339 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.56s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-13 15:57:23,963 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.61s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-13 15:57:25,674 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.63s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-13 15:57:28,996 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.13s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-13 15:57:29,155 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:57:29,155 INFO L93 Difference]: Finished difference Result 335 states and 366 transitions. [2024-11-13 15:57:29,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-13 15:57:29,155 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 20.75) internal successors, (166), 9 states have internal predecessors, (166), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 87 [2024-11-13 15:57:29,156 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:57:29,157 INFO L225 Difference]: With dead ends: 335 [2024-11-13 15:57:29,157 INFO L226 Difference]: Without dead ends: 327 [2024-11-13 15:57:29,157 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 175 GetRequests, 165 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2024-11-13 15:57:29,158 INFO L432 NwaCegarLoop]: 22 mSDtfsCounter, 195 mSDsluCounter, 48 mSDsCounter, 0 mSdLazyCounter, 694 mSolverCounterSat, 42 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 53.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 199 SdHoareTripleChecker+Valid, 70 SdHoareTripleChecker+Invalid, 742 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 694 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 53.7s IncrementalHoareTripleChecker+Time [2024-11-13 15:57:29,158 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [199 Valid, 70 Invalid, 742 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 694 Invalid, 6 Unknown, 0 Unchecked, 53.7s Time] [2024-11-13 15:57:29,159 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 327 states. [2024-11-13 15:57:29,174 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 327 to 325. [2024-11-13 15:57:29,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 325 states, 254 states have (on average 1.3622047244094488) internal successors, (346), 318 states have internal predecessors, (346), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-13 15:57:29,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 325 states to 325 states and 356 transitions. [2024-11-13 15:57:29,179 INFO L78 Accepts]: Start accepts. Automaton has 325 states and 356 transitions. Word has length 87 [2024-11-13 15:57:29,180 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:57:29,180 INFO L471 AbstractCegarLoop]: Abstraction has 325 states and 356 transitions. [2024-11-13 15:57:29,180 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 20.75) internal successors, (166), 9 states have internal predecessors, (166), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-13 15:57:29,180 INFO L276 IsEmpty]: Start isEmpty. Operand 325 states and 356 transitions. [2024-11-13 15:57:29,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2024-11-13 15:57:29,181 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:57:29,182 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:57:29,205 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9adbf25b-2095-4346-a82b-1e4036a35d84/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-13 15:57:29,382 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9adbf25b-2095-4346-a82b-1e4036a35d84/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2024-11-13 15:57:29,382 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 81 more)] === [2024-11-13 15:57:29,383 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:57:29,383 INFO L85 PathProgramCache]: Analyzing trace with hash 748345182, now seen corresponding path program 1 times [2024-11-13 15:57:29,383 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:57:29,383 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1678336952] [2024-11-13 15:57:29,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:57:29,383 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:57:29,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:57:29,586 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-11-13 15:57:29,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:57:29,598 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-11-13 15:57:29,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:57:29,607 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 38 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-13 15:57:29,607 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:57:29,608 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1678336952] [2024-11-13 15:57:29,608 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1678336952] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 15:57:29,608 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1042318805] [2024-11-13 15:57:29,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:57:29,608 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 15:57:29,608 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9adbf25b-2095-4346-a82b-1e4036a35d84/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:57:29,610 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9adbf25b-2095-4346-a82b-1e4036a35d84/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 15:57:29,613 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9adbf25b-2095-4346-a82b-1e4036a35d84/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-13 15:57:29,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:57:29,686 INFO L255 TraceCheckSpWp]: Trace formula consists of 150 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-13 15:57:29,688 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:57:29,857 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 38 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-13 15:57:29,857 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 15:57:29,858 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1042318805] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:57:29,858 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-13 15:57:29,858 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2024-11-13 15:57:29,858 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1563301471] [2024-11-13 15:57:29,858 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:57:29,859 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 15:57:29,859 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:57:29,859 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 15:57:29,859 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-13 15:57:29,859 INFO L87 Difference]: Start difference. First operand 325 states and 356 transitions. Second operand has 4 states, 3 states have (on average 30.0) internal successors, (90), 4 states have internal predecessors, (90), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-13 15:57:29,908 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:57:29,909 INFO L93 Difference]: Finished difference Result 325 states and 356 transitions. [2024-11-13 15:57:29,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-13 15:57:29,910 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 30.0) internal successors, (90), 4 states have internal predecessors, (90), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 97 [2024-11-13 15:57:29,910 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:57:29,912 INFO L225 Difference]: With dead ends: 325 [2024-11-13 15:57:29,912 INFO L226 Difference]: Without dead ends: 324 [2024-11-13 15:57:29,912 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 100 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-13 15:57:29,913 INFO L432 NwaCegarLoop]: 191 mSDtfsCounter, 69 mSDsluCounter, 109 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 300 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-13 15:57:29,913 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [69 Valid, 300 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-13 15:57:29,914 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 324 states. [2024-11-13 15:57:29,926 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 324 to 324. [2024-11-13 15:57:29,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 324 states, 254 states have (on average 1.3543307086614174) internal successors, (344), 317 states have internal predecessors, (344), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-13 15:57:29,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 324 states to 324 states and 354 transitions. [2024-11-13 15:57:29,929 INFO L78 Accepts]: Start accepts. Automaton has 324 states and 354 transitions. Word has length 97 [2024-11-13 15:57:29,929 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:57:29,929 INFO L471 AbstractCegarLoop]: Abstraction has 324 states and 354 transitions. [2024-11-13 15:57:29,930 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 30.0) internal successors, (90), 4 states have internal predecessors, (90), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-13 15:57:29,930 INFO L276 IsEmpty]: Start isEmpty. Operand 324 states and 354 transitions. [2024-11-13 15:57:29,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2024-11-13 15:57:29,931 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:57:29,931 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:57:29,954 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9adbf25b-2095-4346-a82b-1e4036a35d84/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-11-13 15:57:30,135 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9adbf25b-2095-4346-a82b-1e4036a35d84/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2024-11-13 15:57:30,135 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 81 more)] === [2024-11-13 15:57:30,136 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:57:30,136 INFO L85 PathProgramCache]: Analyzing trace with hash 1723864280, now seen corresponding path program 1 times [2024-11-13 15:57:30,136 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:57:30,136 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [841571556] [2024-11-13 15:57:30,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:57:30,136 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:57:30,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:57:30,325 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-11-13 15:57:30,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:57:30,331 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-11-13 15:57:30,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:57:30,338 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 39 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-13 15:57:30,338 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:57:30,338 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [841571556] [2024-11-13 15:57:30,338 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [841571556] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 15:57:30,339 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1168292554] [2024-11-13 15:57:30,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:57:30,339 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 15:57:30,339 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9adbf25b-2095-4346-a82b-1e4036a35d84/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:57:30,341 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9adbf25b-2095-4346-a82b-1e4036a35d84/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 15:57:30,343 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9adbf25b-2095-4346-a82b-1e4036a35d84/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-13 15:57:30,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:57:30,412 INFO L255 TraceCheckSpWp]: Trace formula consists of 151 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-13 15:57:30,414 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:57:30,577 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 39 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-13 15:57:30,578 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 15:57:30,764 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 39 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-13 15:57:30,764 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1168292554] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 15:57:30,764 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-13 15:57:30,764 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6 [2024-11-13 15:57:30,765 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2045303195] [2024-11-13 15:57:30,765 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-13 15:57:30,765 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-13 15:57:30,765 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:57:30,766 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-13 15:57:30,766 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-11-13 15:57:30,767 INFO L87 Difference]: Start difference. First operand 324 states and 354 transitions. Second operand has 7 states, 6 states have (on average 36.166666666666664) internal successors, (217), 7 states have internal predecessors, (217), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-13 15:57:30,828 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:57:30,828 INFO L93 Difference]: Finished difference Result 442 states and 454 transitions. [2024-11-13 15:57:30,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-13 15:57:30,829 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 36.166666666666664) internal successors, (217), 7 states have internal predecessors, (217), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Word has length 98 [2024-11-13 15:57:30,830 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:57:30,834 INFO L225 Difference]: With dead ends: 442 [2024-11-13 15:57:30,834 INFO L226 Difference]: Without dead ends: 441 [2024-11-13 15:57:30,835 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 201 GetRequests, 196 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-11-13 15:57:30,835 INFO L432 NwaCegarLoop]: 155 mSDtfsCounter, 70 mSDsluCounter, 421 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 576 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-13 15:57:30,836 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [70 Valid, 576 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-13 15:57:30,837 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 441 states. [2024-11-13 15:57:30,851 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 441 to 381. [2024-11-13 15:57:30,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 381 states, 309 states have (on average 1.4142394822006472) internal successors, (437), 372 states have internal predecessors, (437), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-11-13 15:57:30,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 381 states to 381 states and 451 transitions. [2024-11-13 15:57:30,854 INFO L78 Accepts]: Start accepts. Automaton has 381 states and 451 transitions. Word has length 98 [2024-11-13 15:57:30,855 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:57:30,855 INFO L471 AbstractCegarLoop]: Abstraction has 381 states and 451 transitions. [2024-11-13 15:57:30,855 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 36.166666666666664) internal successors, (217), 7 states have internal predecessors, (217), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-13 15:57:30,855 INFO L276 IsEmpty]: Start isEmpty. Operand 381 states and 451 transitions. [2024-11-13 15:57:30,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2024-11-13 15:57:30,856 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:57:30,856 INFO L215 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1] [2024-11-13 15:57:30,880 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9adbf25b-2095-4346-a82b-1e4036a35d84/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-13 15:57:31,057 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9adbf25b-2095-4346-a82b-1e4036a35d84/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2024-11-13 15:57:31,057 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 81 more)] === [2024-11-13 15:57:31,057 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:57:31,057 INFO L85 PathProgramCache]: Analyzing trace with hash 1437865572, now seen corresponding path program 1 times [2024-11-13 15:57:31,058 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:57:31,058 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1925070305] [2024-11-13 15:57:31,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:57:31,058 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:57:31,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:57:31,194 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-11-13 15:57:31,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:57:31,201 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-11-13 15:57:31,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:57:31,210 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 41 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-11-13 15:57:31,211 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:57:31,212 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1925070305] [2024-11-13 15:57:31,212 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1925070305] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:57:31,212 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:57:31,212 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 15:57:31,212 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [590096045] [2024-11-13 15:57:31,212 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:57:31,213 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 15:57:31,213 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:57:31,213 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 15:57:31,214 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-13 15:57:31,214 INFO L87 Difference]: Start difference. First operand 381 states and 451 transitions. Second operand has 4 states, 3 states have (on average 30.666666666666668) internal successors, (92), 4 states have internal predecessors, (92), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-13 15:57:31,587 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:57:31,587 INFO L93 Difference]: Finished difference Result 381 states and 451 transitions. [2024-11-13 15:57:31,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 15:57:31,588 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 30.666666666666668) internal successors, (92), 4 states have internal predecessors, (92), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 110 [2024-11-13 15:57:31,588 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:57:31,590 INFO L225 Difference]: With dead ends: 381 [2024-11-13 15:57:31,591 INFO L226 Difference]: Without dead ends: 374 [2024-11-13 15:57:31,592 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-13 15:57:31,593 INFO L432 NwaCegarLoop]: 20 mSDtfsCounter, 78 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 242 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 80 SdHoareTripleChecker+Valid, 32 SdHoareTripleChecker+Invalid, 249 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 242 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-13 15:57:31,593 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [80 Valid, 32 Invalid, 249 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 242 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-13 15:57:31,594 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 374 states. [2024-11-13 15:57:31,610 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 374 to 374. [2024-11-13 15:57:31,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 374 states, 309 states have (on average 1.3689320388349515) internal successors, (423), 365 states have internal predecessors, (423), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-11-13 15:57:31,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 374 states to 374 states and 437 transitions. [2024-11-13 15:57:31,613 INFO L78 Accepts]: Start accepts. Automaton has 374 states and 437 transitions. Word has length 110 [2024-11-13 15:57:31,613 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:57:31,613 INFO L471 AbstractCegarLoop]: Abstraction has 374 states and 437 transitions. [2024-11-13 15:57:31,613 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 30.666666666666668) internal successors, (92), 4 states have internal predecessors, (92), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-13 15:57:31,614 INFO L276 IsEmpty]: Start isEmpty. Operand 374 states and 437 transitions. [2024-11-13 15:57:31,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-11-13 15:57:31,616 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:57:31,616 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1] [2024-11-13 15:57:31,616 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-13 15:57:31,617 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 81 more)] === [2024-11-13 15:57:31,617 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:57:31,617 INFO L85 PathProgramCache]: Analyzing trace with hash 1624159816, now seen corresponding path program 1 times [2024-11-13 15:57:31,617 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:57:31,617 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1681740667] [2024-11-13 15:57:31,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:57:31,617 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:57:31,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:57:31,721 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-11-13 15:57:31,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:57:31,724 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-11-13 15:57:31,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:57:31,730 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 42 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2024-11-13 15:57:31,730 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:57:31,730 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1681740667] [2024-11-13 15:57:31,730 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1681740667] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:57:31,730 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:57:31,730 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 15:57:31,730 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1488142013] [2024-11-13 15:57:31,730 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:57:31,731 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 15:57:31,731 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:57:31,731 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 15:57:31,731 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-13 15:57:31,732 INFO L87 Difference]: Start difference. First operand 374 states and 437 transitions. Second operand has 4 states, 3 states have (on average 30.666666666666668) internal successors, (92), 4 states have internal predecessors, (92), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-13 15:57:32,009 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:57:32,010 INFO L93 Difference]: Finished difference Result 374 states and 437 transitions. [2024-11-13 15:57:32,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-13 15:57:32,010 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 30.666666666666668) internal successors, (92), 4 states have internal predecessors, (92), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 111 [2024-11-13 15:57:32,011 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:57:32,012 INFO L225 Difference]: With dead ends: 374 [2024-11-13 15:57:32,012 INFO L226 Difference]: Without dead ends: 367 [2024-11-13 15:57:32,012 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-13 15:57:32,013 INFO L432 NwaCegarLoop]: 20 mSDtfsCounter, 108 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 175 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 109 SdHoareTripleChecker+Valid, 26 SdHoareTripleChecker+Invalid, 185 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 175 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-13 15:57:32,013 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [109 Valid, 26 Invalid, 185 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 175 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-13 15:57:32,016 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 367 states. [2024-11-13 15:57:32,030 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 367 to 367. [2024-11-13 15:57:32,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 367 states, 309 states have (on average 1.3236245954692556) internal successors, (409), 358 states have internal predecessors, (409), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-11-13 15:57:32,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 367 states to 367 states and 423 transitions. [2024-11-13 15:57:32,033 INFO L78 Accepts]: Start accepts. Automaton has 367 states and 423 transitions. Word has length 111 [2024-11-13 15:57:32,033 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:57:32,034 INFO L471 AbstractCegarLoop]: Abstraction has 367 states and 423 transitions. [2024-11-13 15:57:32,034 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 30.666666666666668) internal successors, (92), 4 states have internal predecessors, (92), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-13 15:57:32,034 INFO L276 IsEmpty]: Start isEmpty. Operand 367 states and 423 transitions. [2024-11-13 15:57:32,035 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2024-11-13 15:57:32,035 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:57:32,035 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1] [2024-11-13 15:57:32,035 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-13 15:57:32,036 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 81 more)] === [2024-11-13 15:57:32,036 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:57:32,036 INFO L85 PathProgramCache]: Analyzing trace with hash 1744456202, now seen corresponding path program 1 times [2024-11-13 15:57:32,036 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:57:32,036 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [827157532] [2024-11-13 15:57:32,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:57:32,037 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:57:32,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-13 15:57:32,078 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [826744366] [2024-11-13 15:57:32,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:57:32,078 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 15:57:32,078 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9adbf25b-2095-4346-a82b-1e4036a35d84/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:57:32,082 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9adbf25b-2095-4346-a82b-1e4036a35d84/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 15:57:32,084 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9adbf25b-2095-4346-a82b-1e4036a35d84/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-13 15:57:32,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:57:32,158 INFO L255 TraceCheckSpWp]: Trace formula consists of 172 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-13 15:57:32,160 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:57:32,353 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 0 proven. 59 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-13 15:57:32,354 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 15:57:32,677 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 0 proven. 59 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-13 15:57:32,677 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:57:32,677 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [827157532] [2024-11-13 15:57:32,677 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-13 15:57:32,677 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [826744366] [2024-11-13 15:57:32,677 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [826744366] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 15:57:32,677 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-13 15:57:32,678 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2024-11-13 15:57:32,678 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1560112938] [2024-11-13 15:57:32,678 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-13 15:57:32,678 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-13 15:57:32,678 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:57:32,679 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-13 15:57:32,679 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-11-13 15:57:32,680 INFO L87 Difference]: Start difference. First operand 367 states and 423 transitions. Second operand has 8 states, 7 states have (on average 29.714285714285715) internal successors, (208), 8 states have internal predecessors, (208), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-13 15:57:33,573 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:57:33,573 INFO L93 Difference]: Finished difference Result 438 states and 485 transitions. [2024-11-13 15:57:33,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-13 15:57:33,573 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 29.714285714285715) internal successors, (208), 8 states have internal predecessors, (208), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Word has length 113 [2024-11-13 15:57:33,574 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:57:33,575 INFO L225 Difference]: With dead ends: 438 [2024-11-13 15:57:33,575 INFO L226 Difference]: Without dead ends: 398 [2024-11-13 15:57:33,576 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 226 GetRequests, 218 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2024-11-13 15:57:33,576 INFO L432 NwaCegarLoop]: 41 mSDtfsCounter, 346 mSDsluCounter, 81 mSDsCounter, 0 mSdLazyCounter, 761 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 349 SdHoareTripleChecker+Valid, 122 SdHoareTripleChecker+Invalid, 807 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 761 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-13 15:57:33,577 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [349 Valid, 122 Invalid, 807 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 761 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-13 15:57:33,578 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 398 states. [2024-11-13 15:57:33,593 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 398 to 386. [2024-11-13 15:57:33,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 386 states, 333 states have (on average 1.2282282282282282) internal successors, (409), 378 states have internal predecessors, (409), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-13 15:57:33,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 386 states to 386 states and 421 transitions. [2024-11-13 15:57:33,596 INFO L78 Accepts]: Start accepts. Automaton has 386 states and 421 transitions. Word has length 113 [2024-11-13 15:57:33,597 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:57:33,597 INFO L471 AbstractCegarLoop]: Abstraction has 386 states and 421 transitions. [2024-11-13 15:57:33,597 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 29.714285714285715) internal successors, (208), 8 states have internal predecessors, (208), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-13 15:57:33,597 INFO L276 IsEmpty]: Start isEmpty. Operand 386 states and 421 transitions. [2024-11-13 15:57:33,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2024-11-13 15:57:33,599 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:57:33,599 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:57:33,623 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9adbf25b-2095-4346-a82b-1e4036a35d84/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-13 15:57:33,799 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9adbf25b-2095-4346-a82b-1e4036a35d84/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2024-11-13 15:57:33,800 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr80ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 81 more)] === [2024-11-13 15:57:33,800 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:57:33,800 INFO L85 PathProgramCache]: Analyzing trace with hash -884222609, now seen corresponding path program 1 times [2024-11-13 15:57:33,800 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:57:33,800 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1404463914] [2024-11-13 15:57:33,800 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:57:33,800 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:57:33,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-13 15:57:33,830 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1535165328] [2024-11-13 15:57:33,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:57:33,830 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 15:57:33,830 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9adbf25b-2095-4346-a82b-1e4036a35d84/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:57:33,833 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9adbf25b-2095-4346-a82b-1e4036a35d84/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 15:57:33,836 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9adbf25b-2095-4346-a82b-1e4036a35d84/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-13 15:57:33,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:57:33,915 INFO L255 TraceCheckSpWp]: Trace formula consists of 193 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-13 15:57:33,918 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:57:34,653 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 0 proven. 37 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-13 15:57:34,653 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 15:57:35,362 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:57:35,363 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1404463914] [2024-11-13 15:57:35,363 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-13 15:57:35,363 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1535165328] [2024-11-13 15:57:35,363 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1535165328] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 15:57:35,364 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-13 15:57:35,364 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2024-11-13 15:57:35,365 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [44197911] [2024-11-13 15:57:35,365 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-13 15:57:35,365 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-13 15:57:35,365 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:57:35,366 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-13 15:57:35,366 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2024-11-13 15:57:35,367 INFO L87 Difference]: Start difference. First operand 386 states and 421 transitions. Second operand has 6 states, 5 states have (on average 24.8) internal successors, (124), 6 states have internal predecessors, (124), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-13 15:57:35,862 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:57:35,862 INFO L93 Difference]: Finished difference Result 386 states and 421 transitions. [2024-11-13 15:57:35,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-13 15:57:35,863 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 24.8) internal successors, (124), 6 states have internal predecessors, (124), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 136 [2024-11-13 15:57:35,864 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:57:35,865 INFO L225 Difference]: With dead ends: 386 [2024-11-13 15:57:35,865 INFO L226 Difference]: Without dead ends: 372 [2024-11-13 15:57:35,866 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 233 GetRequests, 222 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=61, Invalid=95, Unknown=0, NotChecked=0, Total=156 [2024-11-13 15:57:35,866 INFO L432 NwaCegarLoop]: 20 mSDtfsCounter, 44 mSDsluCounter, 29 mSDsCounter, 0 mSdLazyCounter, 348 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 49 SdHoareTripleChecker+Invalid, 364 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 348 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-13 15:57:35,867 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [44 Valid, 49 Invalid, 364 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 348 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-13 15:57:35,868 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 372 states. [2024-11-13 15:57:35,882 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 372 to 372. [2024-11-13 15:57:35,883 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 372 states, 333 states have (on average 1.165165165165165) internal successors, (388), 364 states have internal predecessors, (388), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-13 15:57:35,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 372 states to 372 states and 400 transitions. [2024-11-13 15:57:35,885 INFO L78 Accepts]: Start accepts. Automaton has 372 states and 400 transitions. Word has length 136 [2024-11-13 15:57:35,885 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:57:35,886 INFO L471 AbstractCegarLoop]: Abstraction has 372 states and 400 transitions. [2024-11-13 15:57:35,886 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 24.8) internal successors, (124), 6 states have internal predecessors, (124), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-13 15:57:35,886 INFO L276 IsEmpty]: Start isEmpty. Operand 372 states and 400 transitions. [2024-11-13 15:57:35,887 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2024-11-13 15:57:35,888 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:57:35,888 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:57:35,911 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9adbf25b-2095-4346-a82b-1e4036a35d84/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2024-11-13 15:57:36,092 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9adbf25b-2095-4346-a82b-1e4036a35d84/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2024-11-13 15:57:36,092 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr81ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 81 more)] === [2024-11-13 15:57:36,093 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:57:36,093 INFO L85 PathProgramCache]: Analyzing trace with hash -1641096889, now seen corresponding path program 1 times [2024-11-13 15:57:36,093 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:57:36,094 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1896771792] [2024-11-13 15:57:36,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:57:36,094 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:57:36,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-13 15:57:36,137 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1453524939] [2024-11-13 15:57:36,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:57:36,138 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 15:57:36,139 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9adbf25b-2095-4346-a82b-1e4036a35d84/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:57:36,141 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9adbf25b-2095-4346-a82b-1e4036a35d84/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 15:57:36,146 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9adbf25b-2095-4346-a82b-1e4036a35d84/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-13 15:57:36,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:57:36,229 INFO L255 TraceCheckSpWp]: Trace formula consists of 194 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-13 15:57:36,231 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:57:36,955 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 0 proven. 37 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-13 15:57:36,956 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 15:57:37,506 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:57:37,506 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1896771792] [2024-11-13 15:57:37,506 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-13 15:57:37,506 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1453524939] [2024-11-13 15:57:37,506 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1453524939] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 15:57:37,506 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-13 15:57:37,507 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2024-11-13 15:57:37,507 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1416618689] [2024-11-13 15:57:37,507 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-13 15:57:37,507 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-13 15:57:37,507 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:57:37,508 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-13 15:57:37,508 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2024-11-13 15:57:37,508 INFO L87 Difference]: Start difference. First operand 372 states and 400 transitions. Second operand has 7 states, 6 states have (on average 20.833333333333332) internal successors, (125), 7 states have internal predecessors, (125), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-13 15:57:38,183 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:57:38,183 INFO L93 Difference]: Finished difference Result 376 states and 404 transitions. [2024-11-13 15:57:38,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-13 15:57:38,184 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 20.833333333333332) internal successors, (125), 7 states have internal predecessors, (125), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 137 [2024-11-13 15:57:38,184 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:57:38,186 INFO L225 Difference]: With dead ends: 376 [2024-11-13 15:57:38,186 INFO L226 Difference]: Without dead ends: 338 [2024-11-13 15:57:38,187 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 179 GetRequests, 172 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2024-11-13 15:57:38,188 INFO L432 NwaCegarLoop]: 51 mSDtfsCounter, 22 mSDsluCounter, 58 mSDsCounter, 0 mSdLazyCounter, 601 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 109 SdHoareTripleChecker+Invalid, 602 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 601 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-13 15:57:38,188 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 109 Invalid, 602 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 601 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-13 15:57:38,189 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 338 states. [2024-11-13 15:57:38,214 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 338 to 338. [2024-11-13 15:57:38,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 338 states, 299 states have (on average 1.1806020066889633) internal successors, (353), 330 states have internal predecessors, (353), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-13 15:57:38,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 338 states to 338 states and 365 transitions. [2024-11-13 15:57:38,217 INFO L78 Accepts]: Start accepts. Automaton has 338 states and 365 transitions. Word has length 137 [2024-11-13 15:57:38,217 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:57:38,217 INFO L471 AbstractCegarLoop]: Abstraction has 338 states and 365 transitions. [2024-11-13 15:57:38,218 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 20.833333333333332) internal successors, (125), 7 states have internal predecessors, (125), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-13 15:57:38,218 INFO L276 IsEmpty]: Start isEmpty. Operand 338 states and 365 transitions. [2024-11-13 15:57:38,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2024-11-13 15:57:38,219 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:57:38,219 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1] [2024-11-13 15:57:38,242 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9adbf25b-2095-4346-a82b-1e4036a35d84/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-11-13 15:57:38,423 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9adbf25b-2095-4346-a82b-1e4036a35d84/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2024-11-13 15:57:38,424 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 81 more)] === [2024-11-13 15:57:38,424 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:57:38,424 INFO L85 PathProgramCache]: Analyzing trace with hash -2133444954, now seen corresponding path program 1 times [2024-11-13 15:57:38,424 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:57:38,425 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [442118994] [2024-11-13 15:57:38,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:57:38,425 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:57:38,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-13 15:57:38,475 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2020079332] [2024-11-13 15:57:38,475 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:57:38,475 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 15:57:38,475 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9adbf25b-2095-4346-a82b-1e4036a35d84/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:57:38,477 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9adbf25b-2095-4346-a82b-1e4036a35d84/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 15:57:38,481 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9adbf25b-2095-4346-a82b-1e4036a35d84/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-13 15:57:38,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:57:38,563 INFO L255 TraceCheckSpWp]: Trace formula consists of 200 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-13 15:57:38,565 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:57:38,855 INFO L134 CoverageAnalysis]: Checked inductivity of 119 backedges. 66 proven. 0 refuted. 0 times theorem prover too weak. 53 trivial. 0 not checked. [2024-11-13 15:57:38,855 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 15:57:38,855 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:57:38,856 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [442118994] [2024-11-13 15:57:38,857 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-13 15:57:38,857 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2020079332] [2024-11-13 15:57:38,857 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2020079332] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:57:38,857 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:57:38,857 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-13 15:57:38,857 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [367108148] [2024-11-13 15:57:38,857 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:57:38,858 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-13 15:57:38,858 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:57:38,858 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-13 15:57:38,860 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-13 15:57:38,860 INFO L87 Difference]: Start difference. First operand 338 states and 365 transitions. Second operand has 5 states, 4 states have (on average 21.75) internal successors, (87), 5 states have internal predecessors, (87), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-13 15:57:40,172 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:57:40,172 INFO L93 Difference]: Finished difference Result 338 states and 365 transitions. [2024-11-13 15:57:40,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-13 15:57:40,172 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 21.75) internal successors, (87), 5 states have internal predecessors, (87), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 141 [2024-11-13 15:57:40,173 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:57:40,174 INFO L225 Difference]: With dead ends: 338 [2024-11-13 15:57:40,174 INFO L226 Difference]: Without dead ends: 326 [2024-11-13 15:57:40,174 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 140 GetRequests, 136 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-13 15:57:40,175 INFO L432 NwaCegarLoop]: 23 mSDtfsCounter, 87 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 164 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 89 SdHoareTripleChecker+Valid, 36 SdHoareTripleChecker+Invalid, 177 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 164 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-13 15:57:40,175 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [89 Valid, 36 Invalid, 177 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 164 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-13 15:57:40,176 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 326 states. [2024-11-13 15:57:40,190 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 326 to 322. [2024-11-13 15:57:40,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 322 states, 295 states have (on average 1.1220338983050848) internal successors, (331), 314 states have internal predecessors, (331), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-13 15:57:40,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 322 states to 322 states and 343 transitions. [2024-11-13 15:57:40,192 INFO L78 Accepts]: Start accepts. Automaton has 322 states and 343 transitions. Word has length 141 [2024-11-13 15:57:40,193 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:57:40,193 INFO L471 AbstractCegarLoop]: Abstraction has 322 states and 343 transitions. [2024-11-13 15:57:40,193 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 21.75) internal successors, (87), 5 states have internal predecessors, (87), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-13 15:57:40,193 INFO L276 IsEmpty]: Start isEmpty. Operand 322 states and 343 transitions. [2024-11-13 15:57:40,195 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2024-11-13 15:57:40,195 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:57:40,195 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1] [2024-11-13 15:57:40,219 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9adbf25b-2095-4346-a82b-1e4036a35d84/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2024-11-13 15:57:40,395 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9adbf25b-2095-4346-a82b-1e4036a35d84/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 15:57:40,396 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 81 more)] === [2024-11-13 15:57:40,396 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:57:40,396 INFO L85 PathProgramCache]: Analyzing trace with hash -1712284028, now seen corresponding path program 1 times [2024-11-13 15:57:40,396 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:57:40,396 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1172246985] [2024-11-13 15:57:40,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:57:40,397 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:57:40,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-13 15:57:40,455 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1049137481] [2024-11-13 15:57:40,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:57:40,456 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 15:57:40,456 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9adbf25b-2095-4346-a82b-1e4036a35d84/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:57:40,458 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9adbf25b-2095-4346-a82b-1e4036a35d84/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 15:57:40,460 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9adbf25b-2095-4346-a82b-1e4036a35d84/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process