./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/array-examples/standard_copy1_ground-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 023d838f Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/array-examples/standard_copy1_ground-2.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --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 1970a9a8aaeda89e1214c4bedc05560d9ae947bac2f3f8ce77018b7acf727f81 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-023d838-m [2024-11-10 18:28:10,872 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-10 18:28:10,935 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-10 18:28:10,940 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-10 18:28:10,940 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-10 18:28:10,971 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-10 18:28:10,971 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-10 18:28:10,972 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-10 18:28:10,973 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-10 18:28:10,974 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-10 18:28:10,974 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-10 18:28:10,975 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-10 18:28:10,976 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-10 18:28:10,978 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-10 18:28:10,978 INFO L153 SettingsManager]: * Use SBE=true [2024-11-10 18:28:10,979 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-10 18:28:10,979 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-10 18:28:10,979 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-10 18:28:10,980 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-10 18:28:10,980 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-10 18:28:10,980 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-10 18:28:10,984 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-10 18:28:10,984 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-10 18:28:10,984 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-10 18:28:10,984 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-10 18:28:10,985 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-10 18:28:10,985 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-10 18:28:10,985 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-10 18:28:10,985 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-10 18:28:10,985 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-10 18:28:10,986 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-10 18:28:10,986 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-10 18:28:10,986 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-10 18:28:10,986 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-10 18:28:10,986 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-10 18:28:10,987 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-10 18:28:10,987 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-10 18:28:10,990 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-10 18:28:10,990 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-10 18:28:10,990 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-10 18:28:10,991 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-10 18:28:10,992 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-10 18:28:10,992 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-10 18:28:10,992 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-10 18:28:10,993 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1970a9a8aaeda89e1214c4bedc05560d9ae947bac2f3f8ce77018b7acf727f81 [2024-11-10 18:28:11,302 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-10 18:28:11,332 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-10 18:28:11,335 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-10 18:28:11,336 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-10 18:28:11,337 INFO L274 PluginConnector]: CDTParser initialized [2024-11-10 18:28:11,338 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/array-examples/standard_copy1_ground-2.i [2024-11-10 18:28:12,888 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-10 18:28:13,108 INFO L384 CDTParser]: Found 1 translation units. [2024-11-10 18:28:13,109 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-examples/standard_copy1_ground-2.i [2024-11-10 18:28:13,119 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ccaf60c5e/701af3672e724ea39bcb5105c08813bc/FLAGbbd44d595 [2024-11-10 18:28:13,137 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ccaf60c5e/701af3672e724ea39bcb5105c08813bc [2024-11-10 18:28:13,141 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-10 18:28:13,143 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-10 18:28:13,146 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-10 18:28:13,146 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-10 18:28:13,152 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-10 18:28:13,153 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 06:28:13" (1/1) ... [2024-11-10 18:28:13,154 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@47514bd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:28:13, skipping insertion in model container [2024-11-10 18:28:13,154 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 06:28:13" (1/1) ... [2024-11-10 18:28:13,178 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-10 18:28:13,414 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 18:28:13,426 INFO L200 MainTranslator]: Completed pre-run [2024-11-10 18:28:13,448 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 18:28:13,470 INFO L204 MainTranslator]: Completed translation [2024-11-10 18:28:13,471 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:28:13 WrapperNode [2024-11-10 18:28:13,471 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-10 18:28:13,472 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-10 18:28:13,472 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-10 18:28:13,472 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-10 18:28:13,480 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:28:13" (1/1) ... [2024-11-10 18:28:13,489 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:28:13" (1/1) ... [2024-11-10 18:28:13,512 INFO L138 Inliner]: procedures = 16, calls = 20, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 73 [2024-11-10 18:28:13,514 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-10 18:28:13,515 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-10 18:28:13,515 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-10 18:28:13,515 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-10 18:28:13,526 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:28:13" (1/1) ... [2024-11-10 18:28:13,527 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:28:13" (1/1) ... [2024-11-10 18:28:13,529 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:28:13" (1/1) ... [2024-11-10 18:28:13,559 INFO L175 MemorySlicer]: Split 8 memory accesses to 3 slices as follows [2, 4, 2]. 50 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0]. The 3 writes are split as follows [0, 2, 1]. [2024-11-10 18:28:13,559 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:28:13" (1/1) ... [2024-11-10 18:28:13,559 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:28:13" (1/1) ... [2024-11-10 18:28:13,567 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:28:13" (1/1) ... [2024-11-10 18:28:13,568 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:28:13" (1/1) ... [2024-11-10 18:28:13,569 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:28:13" (1/1) ... [2024-11-10 18:28:13,570 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:28:13" (1/1) ... [2024-11-10 18:28:13,572 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-10 18:28:13,573 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-10 18:28:13,573 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-10 18:28:13,573 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-10 18:28:13,574 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:28:13" (1/1) ... [2024-11-10 18:28:13,610 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-10 18:28:13,631 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 18:28:13,687 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-10 18:28:13,696 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-10 18:28:13,741 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-10 18:28:13,741 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-10 18:28:13,742 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-10 18:28:13,742 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-10 18:28:13,742 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-10 18:28:13,742 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-10 18:28:13,742 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-10 18:28:13,743 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-10 18:28:13,743 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-10 18:28:13,743 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-10 18:28:13,743 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-10 18:28:13,743 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-10 18:28:13,744 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-10 18:28:13,744 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-10 18:28:13,822 INFO L256 CfgBuilder]: Building ICFG [2024-11-10 18:28:13,824 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-10 18:28:13,971 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L16: call ULTIMATE.dealloc(main_~#a1~0#1.base, main_~#a1~0#1.offset);havoc main_~#a1~0#1.base, main_~#a1~0#1.offset;call ULTIMATE.dealloc(main_~#a2~0#1.base, main_~#a2~0#1.offset);havoc main_~#a2~0#1.base, main_~#a2~0#1.offset; [2024-11-10 18:28:13,990 INFO L? ?]: Removed 19 outVars from TransFormulas that were not future-live. [2024-11-10 18:28:13,990 INFO L307 CfgBuilder]: Performing block encoding [2024-11-10 18:28:14,004 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-10 18:28:14,004 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-10 18:28:14,005 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 06:28:14 BoogieIcfgContainer [2024-11-10 18:28:14,005 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-10 18:28:14,008 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-10 18:28:14,010 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-10 18:28:14,015 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-10 18:28:14,015 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 06:28:13" (1/3) ... [2024-11-10 18:28:14,016 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58e356fd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 06:28:14, skipping insertion in model container [2024-11-10 18:28:14,016 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:28:13" (2/3) ... [2024-11-10 18:28:14,019 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58e356fd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 06:28:14, skipping insertion in model container [2024-11-10 18:28:14,020 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 06:28:14" (3/3) ... [2024-11-10 18:28:14,022 INFO L112 eAbstractionObserver]: Analyzing ICFG standard_copy1_ground-2.i [2024-11-10 18:28:14,043 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-10 18:28:14,043 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2024-11-10 18:28:14,134 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-10 18:28:14,142 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;@27d6bcc7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-10 18:28:14,142 INFO L334 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2024-11-10 18:28:14,148 INFO L276 IsEmpty]: Start isEmpty. Operand has 34 states, 27 states have (on average 1.5185185185185186) internal successors, (41), 33 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 18:28:14,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2024-11-10 18:28:14,155 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 18:28:14,156 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2024-11-10 18:28:14,158 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-10 18:28:14,164 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 18:28:14,164 INFO L85 PathProgramCache]: Analyzing trace with hash 73448680, now seen corresponding path program 1 times [2024-11-10 18:28:14,179 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 18:28:14,179 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [291416590] [2024-11-10 18:28:14,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 18:28:14,181 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 18:28:14,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:28:14,485 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 18:28:14,486 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 18:28:14,487 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [291416590] [2024-11-10 18:28:14,487 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [291416590] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 18:28:14,487 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 18:28:14,488 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-10 18:28:14,489 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [904541561] [2024-11-10 18:28:14,490 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 18:28:14,495 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-10 18:28:14,495 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 18:28:14,516 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-10 18:28:14,517 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-10 18:28:14,519 INFO L87 Difference]: Start difference. First operand has 34 states, 27 states have (on average 1.5185185185185186) internal successors, (41), 33 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 18:28:14,568 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 18:28:14,568 INFO L93 Difference]: Finished difference Result 65 states and 79 transitions. [2024-11-10 18:28:14,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-10 18:28:14,574 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2024-11-10 18:28:14,575 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 18:28:14,584 INFO L225 Difference]: With dead ends: 65 [2024-11-10 18:28:14,585 INFO L226 Difference]: Without dead ends: 32 [2024-11-10 18:28:14,588 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-10 18:28:14,595 INFO L432 NwaCegarLoop]: 31 mSDtfsCounter, 2 mSDsluCounter, 55 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 86 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-10 18:28:14,596 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 86 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-10 18:28:14,615 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2024-11-10 18:28:14,626 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 31. [2024-11-10 18:28:14,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 25 states have (on average 1.32) internal successors, (33), 30 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 18:28:14,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 33 transitions. [2024-11-10 18:28:14,629 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 33 transitions. Word has length 5 [2024-11-10 18:28:14,629 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 18:28:14,629 INFO L471 AbstractCegarLoop]: Abstraction has 31 states and 33 transitions. [2024-11-10 18:28:14,630 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 18:28:14,630 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 33 transitions. [2024-11-10 18:28:14,631 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2024-11-10 18:28:14,632 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 18:28:14,632 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1] [2024-11-10 18:28:14,632 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-10 18:28:14,632 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-10 18:28:14,633 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 18:28:14,633 INFO L85 PathProgramCache]: Analyzing trace with hash 317725986, now seen corresponding path program 1 times [2024-11-10 18:28:14,633 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 18:28:14,633 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2131357973] [2024-11-10 18:28:14,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 18:28:14,634 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 18:28:14,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:28:14,843 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 18:28:14,843 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 18:28:14,843 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2131357973] [2024-11-10 18:28:14,844 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2131357973] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 18:28:14,844 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [510933202] [2024-11-10 18:28:14,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 18:28:14,845 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 18:28:14,846 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 18:28:14,849 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-10 18:28:14,852 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-10 18:28:14,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:28:14,958 INFO L255 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-10 18:28:14,965 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 18:28:15,066 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 18:28:15,067 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-10 18:28:15,067 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [510933202] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 18:28:15,067 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-10 18:28:15,067 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2024-11-10 18:28:15,068 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [912359866] [2024-11-10 18:28:15,068 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 18:28:15,070 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-10 18:28:15,071 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 18:28:15,072 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-10 18:28:15,073 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-10 18:28:15,073 INFO L87 Difference]: Start difference. First operand 31 states and 33 transitions. Second operand has 6 states, 5 states have (on average 2.0) internal successors, (10), 6 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 18:28:15,135 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 18:28:15,135 INFO L93 Difference]: Finished difference Result 32 states and 34 transitions. [2024-11-10 18:28:15,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-10 18:28:15,137 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.0) internal successors, (10), 6 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2024-11-10 18:28:15,137 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 18:28:15,138 INFO L225 Difference]: With dead ends: 32 [2024-11-10 18:28:15,138 INFO L226 Difference]: Without dead ends: 31 [2024-11-10 18:28:15,138 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-10 18:28:15,140 INFO L432 NwaCegarLoop]: 23 mSDtfsCounter, 2 mSDsluCounter, 65 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 88 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-10 18:28:15,140 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 88 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-10 18:28:15,141 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2024-11-10 18:28:15,144 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 30. [2024-11-10 18:28:15,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 25 states have (on average 1.28) internal successors, (32), 29 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) [2024-11-10 18:28:15,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 32 transitions. [2024-11-10 18:28:15,145 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 32 transitions. Word has length 10 [2024-11-10 18:28:15,146 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 18:28:15,146 INFO L471 AbstractCegarLoop]: Abstraction has 30 states and 32 transitions. [2024-11-10 18:28:15,146 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.0) internal successors, (10), 6 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 18:28:15,146 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 32 transitions. [2024-11-10 18:28:15,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-11-10 18:28:15,147 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 18:28:15,147 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1] [2024-11-10 18:28:15,164 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-10 18:28:15,348 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 18:28:15,348 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-10 18:28:15,349 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 18:28:15,349 INFO L85 PathProgramCache]: Analyzing trace with hash 1259570980, now seen corresponding path program 1 times [2024-11-10 18:28:15,349 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 18:28:15,349 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [403555264] [2024-11-10 18:28:15,350 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 18:28:15,350 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 18:28:15,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:28:15,464 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-10 18:28:15,464 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 18:28:15,464 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [403555264] [2024-11-10 18:28:15,465 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [403555264] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 18:28:15,465 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 18:28:15,465 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-10 18:28:15,465 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1445844620] [2024-11-10 18:28:15,465 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 18:28:15,465 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-10 18:28:15,466 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 18:28:15,466 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-10 18:28:15,466 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-10 18:28:15,467 INFO L87 Difference]: Start difference. First operand 30 states and 32 transitions. Second operand has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 18:28:15,477 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 18:28:15,477 INFO L93 Difference]: Finished difference Result 30 states and 32 transitions. [2024-11-10 18:28:15,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-10 18:28:15,479 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2024-11-10 18:28:15,479 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 18:28:15,480 INFO L225 Difference]: With dead ends: 30 [2024-11-10 18:28:15,480 INFO L226 Difference]: Without dead ends: 29 [2024-11-10 18:28:15,480 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 [2024-11-10 18:28:15,481 INFO L432 NwaCegarLoop]: 24 mSDtfsCounter, 1 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 46 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-10 18:28:15,482 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 46 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-10 18:28:15,484 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2024-11-10 18:28:15,487 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 27. [2024-11-10 18:28:15,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 23 states have (on average 1.2608695652173914) internal successors, (29), 26 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 18:28:15,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 29 transitions. [2024-11-10 18:28:15,490 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 29 transitions. Word has length 11 [2024-11-10 18:28:15,490 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 18:28:15,491 INFO L471 AbstractCegarLoop]: Abstraction has 27 states and 29 transitions. [2024-11-10 18:28:15,491 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 18:28:15,491 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 29 transitions. [2024-11-10 18:28:15,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-11-10 18:28:15,491 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 18:28:15,491 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 18:28:15,492 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-10 18:28:15,492 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-10 18:28:15,492 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 18:28:15,492 INFO L85 PathProgramCache]: Analyzing trace with hash -735035715, now seen corresponding path program 1 times [2024-11-10 18:28:15,493 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 18:28:15,493 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1639113324] [2024-11-10 18:28:15,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 18:28:15,493 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 18:28:15,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:28:15,601 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 18:28:15,602 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 18:28:15,602 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1639113324] [2024-11-10 18:28:15,602 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1639113324] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 18:28:15,602 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1680170269] [2024-11-10 18:28:15,602 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 18:28:15,603 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 18:28:15,603 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 18:28:15,605 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-10 18:28:15,606 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-10 18:28:15,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:28:15,667 INFO L255 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-10 18:28:15,668 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 18:28:15,698 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 18:28:15,698 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-10 18:28:15,740 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 18:28:15,740 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1680170269] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-10 18:28:15,740 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-10 18:28:15,740 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2024-11-10 18:28:15,741 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1551062664] [2024-11-10 18:28:15,741 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-10 18:28:15,741 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-10 18:28:15,741 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 18:28:15,742 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-10 18:28:15,742 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-11-10 18:28:15,742 INFO L87 Difference]: Start difference. First operand 27 states and 29 transitions. Second operand has 10 states, 10 states have (on average 2.7) internal successors, (27), 10 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 18:28:15,819 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 18:28:15,820 INFO L93 Difference]: Finished difference Result 55 states and 60 transitions. [2024-11-10 18:28:15,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-10 18:28:15,820 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 2.7) internal successors, (27), 10 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2024-11-10 18:28:15,821 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 18:28:15,821 INFO L225 Difference]: With dead ends: 55 [2024-11-10 18:28:15,821 INFO L226 Difference]: Without dead ends: 37 [2024-11-10 18:28:15,822 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-11-10 18:28:15,823 INFO L432 NwaCegarLoop]: 23 mSDtfsCounter, 0 mSDsluCounter, 87 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 110 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-10 18:28:15,823 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 110 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-10 18:28:15,824 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2024-11-10 18:28:15,834 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2024-11-10 18:28:15,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37 states, 33 states have (on average 1.1818181818181819) internal successors, (39), 36 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 18:28:15,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 39 transitions. [2024-11-10 18:28:15,837 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 39 transitions. Word has length 13 [2024-11-10 18:28:15,837 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 18:28:15,837 INFO L471 AbstractCegarLoop]: Abstraction has 37 states and 39 transitions. [2024-11-10 18:28:15,837 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 2.7) internal successors, (27), 10 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 18:28:15,838 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 39 transitions. [2024-11-10 18:28:15,838 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2024-11-10 18:28:15,838 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 18:28:15,838 INFO L215 NwaCegarLoop]: trace histogram [4, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 18:28:15,890 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-10 18:28:16,039 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3 [2024-11-10 18:28:16,039 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-10 18:28:16,040 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 18:28:16,040 INFO L85 PathProgramCache]: Analyzing trace with hash -829615363, now seen corresponding path program 2 times [2024-11-10 18:28:16,040 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 18:28:16,040 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [545324376] [2024-11-10 18:28:16,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 18:28:16,041 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 18:28:16,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:28:16,142 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2024-11-10 18:28:16,142 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 18:28:16,142 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [545324376] [2024-11-10 18:28:16,142 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [545324376] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 18:28:16,142 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 18:28:16,142 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-10 18:28:16,143 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2098008033] [2024-11-10 18:28:16,143 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 18:28:16,143 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-10 18:28:16,143 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 18:28:16,144 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-10 18:28:16,144 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-10 18:28:16,144 INFO L87 Difference]: Start difference. First operand 37 states and 39 transitions. Second operand has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 18:28:16,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 18:28:16,172 INFO L93 Difference]: Finished difference Result 54 states and 57 transitions. [2024-11-10 18:28:16,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-10 18:28:16,172 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 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 23 [2024-11-10 18:28:16,173 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 18:28:16,173 INFO L225 Difference]: With dead ends: 54 [2024-11-10 18:28:16,173 INFO L226 Difference]: Without dead ends: 42 [2024-11-10 18:28:16,174 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-10 18:28:16,175 INFO L432 NwaCegarLoop]: 23 mSDtfsCounter, 2 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 63 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-10 18:28:16,175 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 63 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-10 18:28:16,176 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2024-11-10 18:28:16,179 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 41. [2024-11-10 18:28:16,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41 states, 37 states have (on average 1.162162162162162) internal successors, (43), 40 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 18:28:16,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 43 transitions. [2024-11-10 18:28:16,181 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 43 transitions. Word has length 23 [2024-11-10 18:28:16,181 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 18:28:16,181 INFO L471 AbstractCegarLoop]: Abstraction has 41 states and 43 transitions. [2024-11-10 18:28:16,181 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 18:28:16,181 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 43 transitions. [2024-11-10 18:28:16,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2024-11-10 18:28:16,182 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 18:28:16,182 INFO L215 NwaCegarLoop]: trace histogram [4, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 18:28:16,182 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-10 18:28:16,183 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-10 18:28:16,183 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 18:28:16,183 INFO L85 PathProgramCache]: Analyzing trace with hash -1473212639, now seen corresponding path program 1 times [2024-11-10 18:28:16,183 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 18:28:16,183 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [423968330] [2024-11-10 18:28:16,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 18:28:16,184 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 18:28:16,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:28:16,364 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-10 18:28:16,364 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 18:28:16,364 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [423968330] [2024-11-10 18:28:16,364 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [423968330] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 18:28:16,364 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1153070907] [2024-11-10 18:28:16,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 18:28:16,365 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 18:28:16,365 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 18:28:16,370 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-10 18:28:16,371 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-10 18:28:16,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:28:16,457 INFO L255 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-10 18:28:16,459 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 18:28:16,524 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-10 18:28:16,526 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-10 18:28:16,659 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-10 18:28:16,661 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1153070907] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-10 18:28:16,661 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-10 18:28:16,661 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 18 [2024-11-10 18:28:16,662 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [514560746] [2024-11-10 18:28:16,662 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-10 18:28:16,662 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-10 18:28:16,662 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 18:28:16,665 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-10 18:28:16,666 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2024-11-10 18:28:16,666 INFO L87 Difference]: Start difference. First operand 41 states and 43 transitions. Second operand has 18 states, 18 states have (on average 2.7777777777777777) internal successors, (50), 18 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 18:28:16,742 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 18:28:16,746 INFO L93 Difference]: Finished difference Result 83 states and 90 transitions. [2024-11-10 18:28:16,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-10 18:28:16,747 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.7777777777777777) internal successors, (50), 18 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2024-11-10 18:28:16,747 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 18:28:16,748 INFO L225 Difference]: With dead ends: 83 [2024-11-10 18:28:16,748 INFO L226 Difference]: Without dead ends: 61 [2024-11-10 18:28:16,748 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 82 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2024-11-10 18:28:16,749 INFO L432 NwaCegarLoop]: 23 mSDtfsCounter, 0 mSDsluCounter, 157 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 180 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-10 18:28:16,749 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 180 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-10 18:28:16,750 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2024-11-10 18:28:16,756 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 61. [2024-11-10 18:28:16,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61 states, 57 states have (on average 1.105263157894737) internal successors, (63), 60 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 18:28:16,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 63 transitions. [2024-11-10 18:28:16,763 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 63 transitions. Word has length 28 [2024-11-10 18:28:16,763 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 18:28:16,764 INFO L471 AbstractCegarLoop]: Abstraction has 61 states and 63 transitions. [2024-11-10 18:28:16,764 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.7777777777777777) internal successors, (50), 18 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 18:28:16,764 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 63 transitions. [2024-11-10 18:28:16,765 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2024-11-10 18:28:16,765 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 18:28:16,765 INFO L215 NwaCegarLoop]: trace histogram [8, 7, 7, 7, 7, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 18:28:16,785 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-10 18:28:16,966 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 18:28:16,966 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-10 18:28:16,967 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 18:28:16,967 INFO L85 PathProgramCache]: Analyzing trace with hash -287889759, now seen corresponding path program 2 times [2024-11-10 18:28:16,967 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 18:28:16,967 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [101344977] [2024-11-10 18:28:16,967 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 18:28:16,967 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 18:28:16,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:28:17,405 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 0 proven. 119 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-10 18:28:17,405 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 18:28:17,406 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [101344977] [2024-11-10 18:28:17,406 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [101344977] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 18:28:17,406 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [70462373] [2024-11-10 18:28:17,406 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-10 18:28:17,406 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 18:28:17,406 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 18:28:17,409 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-10 18:28:17,411 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-10 18:28:17,511 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-10 18:28:17,511 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-10 18:28:17,514 INFO L255 TraceCheckSpWp]: Trace formula consists of 206 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-10 18:28:17,517 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 18:28:17,631 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 0 proven. 119 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-10 18:28:17,635 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-10 18:28:17,970 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 0 proven. 119 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-10 18:28:17,970 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [70462373] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-10 18:28:17,971 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-10 18:28:17,971 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 34 [2024-11-10 18:28:17,971 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [639020075] [2024-11-10 18:28:17,971 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-10 18:28:17,972 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2024-11-10 18:28:17,972 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 18:28:17,973 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2024-11-10 18:28:17,973 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=306, Invalid=816, Unknown=0, NotChecked=0, Total=1122 [2024-11-10 18:28:17,974 INFO L87 Difference]: Start difference. First operand 61 states and 63 transitions. Second operand has 34 states, 34 states have (on average 2.6470588235294117) internal successors, (90), 34 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 18:28:18,084 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 18:28:18,084 INFO L93 Difference]: Finished difference Result 123 states and 134 transitions. [2024-11-10 18:28:18,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2024-11-10 18:28:18,085 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 34 states have (on average 2.6470588235294117) internal successors, (90), 34 states have internal predecessors, (90), 0 states have call successors, (0), 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 48 [2024-11-10 18:28:18,085 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 18:28:18,086 INFO L225 Difference]: With dead ends: 123 [2024-11-10 18:28:18,086 INFO L226 Difference]: Without dead ends: 101 [2024-11-10 18:28:18,086 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 111 GetRequests, 79 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 334 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=306, Invalid=816, Unknown=0, NotChecked=0, Total=1122 [2024-11-10 18:28:18,087 INFO L432 NwaCegarLoop]: 23 mSDtfsCounter, 0 mSDsluCounter, 166 mSDsCounter, 0 mSdLazyCounter, 83 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 189 SdHoareTripleChecker+Invalid, 83 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 83 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-10 18:28:18,087 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 189 Invalid, 83 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 83 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-10 18:28:18,088 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2024-11-10 18:28:18,094 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 101. [2024-11-10 18:28:18,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 101 states, 97 states have (on average 1.0618556701030928) internal successors, (103), 100 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 18:28:18,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 103 transitions. [2024-11-10 18:28:18,095 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 103 transitions. Word has length 48 [2024-11-10 18:28:18,095 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 18:28:18,096 INFO L471 AbstractCegarLoop]: Abstraction has 101 states and 103 transitions. [2024-11-10 18:28:18,096 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 2.6470588235294117) internal successors, (90), 34 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 18:28:18,096 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 103 transitions. [2024-11-10 18:28:18,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2024-11-10 18:28:18,098 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 18:28:18,098 INFO L215 NwaCegarLoop]: trace histogram [16, 15, 15, 15, 15, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 18:28:18,117 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-10 18:28:18,299 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 18:28:18,300 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-10 18:28:18,300 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 18:28:18,300 INFO L85 PathProgramCache]: Analyzing trace with hash -572516959, now seen corresponding path program 3 times [2024-11-10 18:28:18,301 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 18:28:18,301 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1769398747] [2024-11-10 18:28:18,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 18:28:18,301 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 18:28:18,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:28:19,274 INFO L134 CoverageAnalysis]: Checked inductivity of 558 backedges. 0 proven. 555 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-10 18:28:19,277 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 18:28:19,277 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1769398747] [2024-11-10 18:28:19,277 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1769398747] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 18:28:19,278 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [506308070] [2024-11-10 18:28:19,278 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-10 18:28:19,278 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 18:28:19,278 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 18:28:19,280 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-10 18:28:19,283 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-10 18:28:19,384 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-11-10 18:28:19,384 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-10 18:28:19,386 INFO L255 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-10 18:28:19,389 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 18:28:19,468 INFO L134 CoverageAnalysis]: Checked inductivity of 558 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 555 trivial. 0 not checked. [2024-11-10 18:28:19,468 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-10 18:28:19,468 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [506308070] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 18:28:19,469 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-10 18:28:19,469 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [33] total 36 [2024-11-10 18:28:19,469 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [230062341] [2024-11-10 18:28:19,469 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 18:28:19,469 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-10 18:28:19,470 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 18:28:19,470 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-10 18:28:19,471 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=295, Invalid=965, Unknown=0, NotChecked=0, Total=1260 [2024-11-10 18:28:19,471 INFO L87 Difference]: Start difference. First operand 101 states and 103 transitions. Second operand has 5 states, 4 states have (on average 4.25) internal successors, (17), 5 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 18:28:19,491 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 18:28:19,491 INFO L93 Difference]: Finished difference Result 101 states and 103 transitions. [2024-11-10 18:28:19,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-10 18:28:19,492 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.25) internal successors, (17), 5 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 88 [2024-11-10 18:28:19,492 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 18:28:19,493 INFO L225 Difference]: With dead ends: 101 [2024-11-10 18:28:19,493 INFO L226 Difference]: Without dead ends: 100 [2024-11-10 18:28:19,493 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 120 GetRequests, 86 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 297 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=295, Invalid=965, Unknown=0, NotChecked=0, Total=1260 [2024-11-10 18:28:19,494 INFO L432 NwaCegarLoop]: 20 mSDtfsCounter, 2 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 56 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-10 18:28:19,494 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 56 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-10 18:28:19,495 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100 states. [2024-11-10 18:28:19,507 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100 to 100. [2024-11-10 18:28:19,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 100 states, 97 states have (on average 1.0515463917525774) internal successors, (102), 99 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 18:28:19,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 102 transitions. [2024-11-10 18:28:19,511 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 102 transitions. Word has length 88 [2024-11-10 18:28:19,512 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 18:28:19,512 INFO L471 AbstractCegarLoop]: Abstraction has 100 states and 102 transitions. [2024-11-10 18:28:19,512 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.25) internal successors, (17), 5 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 18:28:19,512 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 102 transitions. [2024-11-10 18:28:19,513 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2024-11-10 18:28:19,514 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 18:28:19,514 INFO L215 NwaCegarLoop]: trace histogram [16, 15, 15, 15, 15, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 18:28:19,537 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-10 18:28:19,714 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 18:28:19,715 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-10 18:28:19,715 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 18:28:19,715 INFO L85 PathProgramCache]: Analyzing trace with hash -568156551, now seen corresponding path program 1 times [2024-11-10 18:28:19,715 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 18:28:19,716 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1554282697] [2024-11-10 18:28:19,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 18:28:19,716 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 18:28:19,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:28:19,861 INFO L134 CoverageAnalysis]: Checked inductivity of 559 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 557 trivial. 0 not checked. [2024-11-10 18:28:19,862 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 18:28:19,862 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1554282697] [2024-11-10 18:28:19,862 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1554282697] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 18:28:19,862 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 18:28:19,862 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-10 18:28:19,862 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1537869087] [2024-11-10 18:28:19,862 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 18:28:19,863 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-10 18:28:19,863 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 18:28:19,863 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-10 18:28:19,863 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-10 18:28:19,863 INFO L87 Difference]: Start difference. First operand 100 states and 102 transitions. Second operand has 3 states, 2 states have (on average 8.5) internal successors, (17), 3 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 18:28:19,872 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 18:28:19,873 INFO L93 Difference]: Finished difference Result 100 states and 102 transitions. [2024-11-10 18:28:19,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-10 18:28:19,873 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 8.5) internal successors, (17), 3 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 89 [2024-11-10 18:28:19,873 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 18:28:19,874 INFO L225 Difference]: With dead ends: 100 [2024-11-10 18:28:19,874 INFO L226 Difference]: Without dead ends: 99 [2024-11-10 18:28:19,874 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 [2024-11-10 18:28:19,875 INFO L432 NwaCegarLoop]: 22 mSDtfsCounter, 1 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 42 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-10 18:28:19,875 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 42 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-10 18:28:19,876 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2024-11-10 18:28:19,880 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 97. [2024-11-10 18:28:19,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 97 states, 95 states have (on average 1.0421052631578946) internal successors, (99), 96 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 18:28:19,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 99 transitions. [2024-11-10 18:28:19,881 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 99 transitions. Word has length 89 [2024-11-10 18:28:19,882 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 18:28:19,882 INFO L471 AbstractCegarLoop]: Abstraction has 97 states and 99 transitions. [2024-11-10 18:28:19,882 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 8.5) internal successors, (17), 3 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 18:28:19,882 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 99 transitions. [2024-11-10 18:28:19,883 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2024-11-10 18:28:19,883 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 18:28:19,883 INFO L215 NwaCegarLoop]: trace histogram [16, 15, 15, 15, 15, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 18:28:19,884 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-10 18:28:19,884 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-10 18:28:19,884 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 18:28:19,884 INFO L85 PathProgramCache]: Analyzing trace with hash 1164920817, now seen corresponding path program 1 times [2024-11-10 18:28:19,884 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 18:28:19,884 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1475715049] [2024-11-10 18:28:19,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 18:28:19,885 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 18:28:19,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:28:20,057 INFO L134 CoverageAnalysis]: Checked inductivity of 557 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 555 trivial. 0 not checked. [2024-11-10 18:28:20,057 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 18:28:20,057 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1475715049] [2024-11-10 18:28:20,058 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1475715049] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 18:28:20,058 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [696048533] [2024-11-10 18:28:20,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 18:28:20,058 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 18:28:20,058 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 18:28:20,060 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-10 18:28:20,061 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-10 18:28:20,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:28:20,192 INFO L255 TraceCheckSpWp]: Trace formula consists of 375 conjuncts, 32 conjuncts are in the unsatisfiable core [2024-11-10 18:28:20,196 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 18:28:20,802 INFO L134 CoverageAnalysis]: Checked inductivity of 557 backedges. 0 proven. 555 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-10 18:28:20,802 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-10 18:28:21,929 INFO L134 CoverageAnalysis]: Checked inductivity of 557 backedges. 0 proven. 555 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-10 18:28:21,929 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [696048533] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-10 18:28:21,929 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-10 18:28:21,929 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 33, 33] total 67 [2024-11-10 18:28:21,929 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1981779981] [2024-11-10 18:28:21,929 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-10 18:28:21,930 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 67 states [2024-11-10 18:28:21,930 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 18:28:21,932 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 67 interpolants. [2024-11-10 18:28:21,934 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1063, Invalid=3359, Unknown=0, NotChecked=0, Total=4422 [2024-11-10 18:28:21,934 INFO L87 Difference]: Start difference. First operand 97 states and 99 transitions. Second operand has 67 states, 67 states have (on average 2.7611940298507465) internal successors, (185), 67 states have internal predecessors, (185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 18:28:22,196 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 18:28:22,196 INFO L93 Difference]: Finished difference Result 200 states and 220 transitions. [2024-11-10 18:28:22,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 66 states. [2024-11-10 18:28:22,198 INFO L78 Accepts]: Start accepts. Automaton has has 67 states, 67 states have (on average 2.7611940298507465) internal successors, (185), 67 states have internal predecessors, (185), 0 states have call successors, (0), 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 93 [2024-11-10 18:28:22,199 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 18:28:22,199 INFO L225 Difference]: With dead ends: 200 [2024-11-10 18:28:22,200 INFO L226 Difference]: Without dead ends: 182 [2024-11-10 18:28:22,202 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 189 GetRequests, 124 SyntacticMatches, 0 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1171 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=1063, Invalid=3359, Unknown=0, NotChecked=0, Total=4422 [2024-11-10 18:28:22,204 INFO L432 NwaCegarLoop]: 17 mSDtfsCounter, 0 mSDsluCounter, 182 mSDsCounter, 0 mSdLazyCounter, 205 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 199 SdHoareTripleChecker+Invalid, 205 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 205 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-10 18:28:22,204 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 199 Invalid, 205 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 205 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-10 18:28:22,205 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 182 states. [2024-11-10 18:28:22,219 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 182 to 182. [2024-11-10 18:28:22,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 182 states, 180 states have (on average 1.0222222222222221) internal successors, (184), 181 states have internal predecessors, (184), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 18:28:22,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 182 states and 184 transitions. [2024-11-10 18:28:22,222 INFO L78 Accepts]: Start accepts. Automaton has 182 states and 184 transitions. Word has length 93 [2024-11-10 18:28:22,222 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 18:28:22,222 INFO L471 AbstractCegarLoop]: Abstraction has 182 states and 184 transitions. [2024-11-10 18:28:22,222 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 67 states, 67 states have (on average 2.7611940298507465) internal successors, (185), 67 states have internal predecessors, (185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 18:28:22,223 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 184 transitions. [2024-11-10 18:28:22,224 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2024-11-10 18:28:22,224 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 18:28:22,225 INFO L215 NwaCegarLoop]: trace histogram [32, 31, 31, 31, 31, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 18:28:22,243 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-10 18:28:22,428 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 18:28:22,429 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-10 18:28:22,429 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 18:28:22,429 INFO L85 PathProgramCache]: Analyzing trace with hash 1508712981, now seen corresponding path program 2 times [2024-11-10 18:28:22,429 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 18:28:22,430 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [280351108] [2024-11-10 18:28:22,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 18:28:22,430 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 18:28:22,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:28:22,677 INFO L134 CoverageAnalysis]: Checked inductivity of 2396 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2396 trivial. 0 not checked. [2024-11-10 18:28:22,677 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 18:28:22,677 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [280351108] [2024-11-10 18:28:22,677 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [280351108] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 18:28:22,677 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 18:28:22,677 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-10 18:28:22,677 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1909643005] [2024-11-10 18:28:22,677 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 18:28:22,678 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-10 18:28:22,678 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 18:28:22,678 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-10 18:28:22,678 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-10 18:28:22,679 INFO L87 Difference]: Start difference. First operand 182 states and 184 transitions. Second operand has 4 states, 3 states have (on average 7.0) internal successors, (21), 4 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 18:28:22,697 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 18:28:22,697 INFO L93 Difference]: Finished difference Result 191 states and 193 transitions. [2024-11-10 18:28:22,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-10 18:28:22,698 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 7.0) internal successors, (21), 4 states have internal predecessors, (21), 0 states have call successors, (0), 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 178 [2024-11-10 18:28:22,698 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 18:28:22,699 INFO L225 Difference]: With dead ends: 191 [2024-11-10 18:28:22,699 INFO L226 Difference]: Without dead ends: 189 [2024-11-10 18:28:22,699 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-10 18:28:22,700 INFO L432 NwaCegarLoop]: 20 mSDtfsCounter, 2 mSDsluCounter, 35 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 55 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-10 18:28:22,700 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 55 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-10 18:28:22,701 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 189 states. [2024-11-10 18:28:22,708 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 189 to 188. [2024-11-10 18:28:22,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 188 states, 186 states have (on average 1.021505376344086) internal successors, (190), 187 states have internal predecessors, (190), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 18:28:22,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 188 states to 188 states and 190 transitions. [2024-11-10 18:28:22,709 INFO L78 Accepts]: Start accepts. Automaton has 188 states and 190 transitions. Word has length 178 [2024-11-10 18:28:22,709 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 18:28:22,709 INFO L471 AbstractCegarLoop]: Abstraction has 188 states and 190 transitions. [2024-11-10 18:28:22,710 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 7.0) internal successors, (21), 4 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 18:28:22,710 INFO L276 IsEmpty]: Start isEmpty. Operand 188 states and 190 transitions. [2024-11-10 18:28:22,711 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2024-11-10 18:28:22,711 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 18:28:22,712 INFO L215 NwaCegarLoop]: trace histogram [32, 31, 31, 31, 31, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 18:28:22,712 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-10 18:28:22,712 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-10 18:28:22,712 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 18:28:22,712 INFO L85 PathProgramCache]: Analyzing trace with hash 662002876, now seen corresponding path program 1 times [2024-11-10 18:28:22,712 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 18:28:22,712 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1698276086] [2024-11-10 18:28:22,713 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 18:28:22,713 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 18:28:22,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:28:25,621 INFO L134 CoverageAnalysis]: Checked inductivity of 2401 backedges. 0 proven. 2387 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-10 18:28:25,622 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 18:28:25,622 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1698276086] [2024-11-10 18:28:25,622 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1698276086] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 18:28:25,622 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [76004500] [2024-11-10 18:28:25,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 18:28:25,622 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 18:28:25,623 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 18:28:25,624 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-10 18:28:25,626 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-10 18:28:25,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:28:25,844 INFO L255 TraceCheckSpWp]: Trace formula consists of 724 conjuncts, 64 conjuncts are in the unsatisfiable core [2024-11-10 18:28:25,849 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 18:28:26,128 INFO L134 CoverageAnalysis]: Checked inductivity of 2401 backedges. 0 proven. 2387 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-10 18:28:26,128 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-10 18:28:29,243 INFO L134 CoverageAnalysis]: Checked inductivity of 2401 backedges. 0 proven. 2387 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-10 18:28:29,244 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [76004500] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-10 18:28:29,244 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-10 18:28:29,244 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [65, 65, 65] total 130 [2024-11-10 18:28:29,244 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [362860801] [2024-11-10 18:28:29,244 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-10 18:28:29,245 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 130 states [2024-11-10 18:28:29,245 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 18:28:29,248 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 130 interpolants. [2024-11-10 18:28:29,252 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=4290, Invalid=12480, Unknown=0, NotChecked=0, Total=16770 [2024-11-10 18:28:29,253 INFO L87 Difference]: Start difference. First operand 188 states and 190 transitions. Second operand has 130 states, 130 states have (on average 2.6076923076923078) internal successors, (339), 130 states have internal predecessors, (339), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 18:28:29,733 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 18:28:29,733 INFO L93 Difference]: Finished difference Result 377 states and 412 transitions. [2024-11-10 18:28:29,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 127 states. [2024-11-10 18:28:29,736 INFO L78 Accepts]: Start accepts. Automaton has has 130 states, 130 states have (on average 2.6076923076923078) internal successors, (339), 130 states have internal predecessors, (339), 0 states have call successors, (0), 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 185 [2024-11-10 18:28:29,737 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 18:28:29,738 INFO L225 Difference]: With dead ends: 377 [2024-11-10 18:28:29,738 INFO L226 Difference]: Without dead ends: 348 [2024-11-10 18:28:29,744 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 433 GetRequests, 305 SyntacticMatches, 0 SemanticMatches, 128 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5206 ImplicationChecksByTransitivity, 4.2s TimeCoverageRelationStatistics Valid=4290, Invalid=12480, Unknown=0, NotChecked=0, Total=16770 [2024-11-10 18:28:29,745 INFO L432 NwaCegarLoop]: 21 mSDtfsCounter, 0 mSDsluCounter, 330 mSDsCounter, 0 mSdLazyCounter, 296 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 351 SdHoareTripleChecker+Invalid, 296 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 296 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-10 18:28:29,745 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 351 Invalid, 296 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 296 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-10 18:28:29,746 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 348 states. [2024-11-10 18:28:29,761 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 348 to 348. [2024-11-10 18:28:29,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 348 states, 346 states have (on average 1.0115606936416186) internal successors, (350), 347 states have internal predecessors, (350), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 18:28:29,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 348 states to 348 states and 350 transitions. [2024-11-10 18:28:29,763 INFO L78 Accepts]: Start accepts. Automaton has 348 states and 350 transitions. Word has length 185 [2024-11-10 18:28:29,763 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 18:28:29,763 INFO L471 AbstractCegarLoop]: Abstraction has 348 states and 350 transitions. [2024-11-10 18:28:29,764 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 130 states, 130 states have (on average 2.6076923076923078) internal successors, (339), 130 states have internal predecessors, (339), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 18:28:29,764 INFO L276 IsEmpty]: Start isEmpty. Operand 348 states and 350 transitions. [2024-11-10 18:28:29,769 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 346 [2024-11-10 18:28:29,769 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 18:28:29,769 INFO L215 NwaCegarLoop]: trace histogram [64, 63, 63, 63, 63, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 18:28:29,791 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2024-11-10 18:28:29,970 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 18:28:29,970 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-10 18:28:29,971 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 18:28:29,971 INFO L85 PathProgramCache]: Analyzing trace with hash -295231300, now seen corresponding path program 2 times [2024-11-10 18:28:29,971 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 18:28:29,971 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [266467312] [2024-11-10 18:28:29,971 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 18:28:29,971 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 18:28:30,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:28:38,908 INFO L134 CoverageAnalysis]: Checked inductivity of 9905 backedges. 0 proven. 9891 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-10 18:28:38,908 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 18:28:38,908 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [266467312] [2024-11-10 18:28:38,908 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [266467312] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 18:28:38,908 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1870969667] [2024-11-10 18:28:38,908 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-10 18:28:38,909 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 18:28:38,909 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 18:28:38,910 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-10 18:28:38,911 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-10 18:28:39,267 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-10 18:28:39,267 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-10 18:28:39,277 INFO L255 TraceCheckSpWp]: Trace formula consists of 1364 conjuncts, 128 conjuncts are in the unsatisfiable core [2024-11-10 18:28:39,286 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 18:28:39,753 INFO L134 CoverageAnalysis]: Checked inductivity of 9905 backedges. 0 proven. 9891 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-10 18:28:39,753 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-10 18:28:50,623 INFO L134 CoverageAnalysis]: Checked inductivity of 9905 backedges. 0 proven. 9891 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-10 18:28:50,623 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1870969667] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-10 18:28:50,623 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-10 18:28:50,623 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [129, 129, 129] total 258 [2024-11-10 18:28:50,624 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [609676337] [2024-11-10 18:28:50,624 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-10 18:28:50,625 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 258 states [2024-11-10 18:28:50,625 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 18:28:50,631 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 258 interpolants. [2024-11-10 18:28:50,639 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16770, Invalid=49536, Unknown=0, NotChecked=0, Total=66306 [2024-11-10 18:28:50,641 INFO L87 Difference]: Start difference. First operand 348 states and 350 transitions. Second operand has 258 states, 258 states have (on average 2.554263565891473) internal successors, (659), 258 states have internal predecessors, (659), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 18:28:51,777 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 18:28:51,777 INFO L93 Difference]: Finished difference Result 697 states and 764 transitions. [2024-11-10 18:28:51,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 255 states. [2024-11-10 18:28:51,778 INFO L78 Accepts]: Start accepts. Automaton has has 258 states, 258 states have (on average 2.554263565891473) internal successors, (659), 258 states have internal predecessors, (659), 0 states have call successors, (0), 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 345 [2024-11-10 18:28:51,779 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 18:28:51,781 INFO L225 Difference]: With dead ends: 697 [2024-11-10 18:28:51,781 INFO L226 Difference]: Without dead ends: 668 [2024-11-10 18:28:51,785 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 817 GetRequests, 561 SyntacticMatches, 0 SemanticMatches, 256 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20662 ImplicationChecksByTransitivity, 14.7s TimeCoverageRelationStatistics Valid=16770, Invalid=49536, Unknown=0, NotChecked=0, Total=66306 [2024-11-10 18:28:51,786 INFO L432 NwaCegarLoop]: 21 mSDtfsCounter, 0 mSDsluCounter, 394 mSDsCounter, 0 mSdLazyCounter, 552 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 415 SdHoareTripleChecker+Invalid, 552 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 552 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-10 18:28:51,786 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 415 Invalid, 552 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 552 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-10 18:28:51,787 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 668 states. [2024-11-10 18:28:51,799 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 668 to 668. [2024-11-10 18:28:51,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 668 states, 666 states have (on average 1.006006006006006) internal successors, (670), 667 states have internal predecessors, (670), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 18:28:51,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 668 states to 668 states and 670 transitions. [2024-11-10 18:28:51,803 INFO L78 Accepts]: Start accepts. Automaton has 668 states and 670 transitions. Word has length 345 [2024-11-10 18:28:51,803 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 18:28:51,803 INFO L471 AbstractCegarLoop]: Abstraction has 668 states and 670 transitions. [2024-11-10 18:28:51,804 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 258 states, 258 states have (on average 2.554263565891473) internal successors, (659), 258 states have internal predecessors, (659), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 18:28:51,804 INFO L276 IsEmpty]: Start isEmpty. Operand 668 states and 670 transitions. [2024-11-10 18:28:51,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 666 [2024-11-10 18:28:51,815 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 18:28:51,816 INFO L215 NwaCegarLoop]: trace histogram [128, 127, 127, 127, 127, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 18:28:51,839 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-11-10 18:28:52,020 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2024-11-10 18:28:52,021 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-10 18:28:52,021 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 18:28:52,022 INFO L85 PathProgramCache]: Analyzing trace with hash -1822775108, now seen corresponding path program 3 times [2024-11-10 18:28:52,022 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 18:28:52,022 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1058067434] [2024-11-10 18:28:52,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 18:28:52,022 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 18:28:52,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:29:24,549 INFO L134 CoverageAnalysis]: Checked inductivity of 40273 backedges. 0 proven. 40259 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-10 18:29:24,550 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 18:29:24,550 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1058067434] [2024-11-10 18:29:24,550 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1058067434] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 18:29:24,550 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1060169027] [2024-11-10 18:29:24,550 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-10 18:29:24,550 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 18:29:24,551 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 18:29:24,552 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-10 18:29:24,552 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-10 18:29:24,918 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-11-10 18:29:24,918 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-10 18:29:24,922 INFO L255 TraceCheckSpWp]: Trace formula consists of 112 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-10 18:29:24,930 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 18:29:25,245 INFO L134 CoverageAnalysis]: Checked inductivity of 40273 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 40268 trivial. 0 not checked. [2024-11-10 18:29:25,246 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-10 18:29:25,246 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1060169027] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 18:29:25,246 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-10 18:29:25,246 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [257] total 260 [2024-11-10 18:29:25,247 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1037276855] [2024-11-10 18:29:25,247 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 18:29:25,247 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-10 18:29:25,248 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 18:29:25,248 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-10 18:29:25,253 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16647, Invalid=50693, Unknown=0, NotChecked=0, Total=67340 [2024-11-10 18:29:25,254 INFO L87 Difference]: Start difference. First operand 668 states and 670 transitions. Second operand has 5 states, 4 states have (on average 7.0) internal successors, (28), 5 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 18:29:25,282 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 18:29:25,282 INFO L93 Difference]: Finished difference Result 668 states and 670 transitions. [2024-11-10 18:29:25,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-10 18:29:25,283 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 7.0) internal successors, (28), 5 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 665 [2024-11-10 18:29:25,286 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 18:29:25,288 INFO L225 Difference]: With dead ends: 668 [2024-11-10 18:29:25,292 INFO L226 Difference]: Without dead ends: 667 [2024-11-10 18:29:25,298 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 921 GetRequests, 663 SyntacticMatches, 0 SemanticMatches, 258 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16761 ImplicationChecksByTransitivity, 16.0s TimeCoverageRelationStatistics Valid=16647, Invalid=50693, Unknown=0, NotChecked=0, Total=67340 [2024-11-10 18:29:25,299 INFO L432 NwaCegarLoop]: 18 mSDtfsCounter, 2 mSDsluCounter, 48 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 66 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-10 18:29:25,299 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 66 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-10 18:29:25,300 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 667 states. [2024-11-10 18:29:25,323 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 667 to 667. [2024-11-10 18:29:25,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 667 states, 666 states have (on average 1.0045045045045045) internal successors, (669), 666 states have internal predecessors, (669), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 18:29:25,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 667 states to 667 states and 669 transitions. [2024-11-10 18:29:25,327 INFO L78 Accepts]: Start accepts. Automaton has 667 states and 669 transitions. Word has length 665 [2024-11-10 18:29:25,328 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 18:29:25,328 INFO L471 AbstractCegarLoop]: Abstraction has 667 states and 669 transitions. [2024-11-10 18:29:25,329 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 7.0) internal successors, (28), 5 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 18:29:25,329 INFO L276 IsEmpty]: Start isEmpty. Operand 667 states and 669 transitions. [2024-11-10 18:29:25,341 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 667 [2024-11-10 18:29:25,341 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 18:29:25,342 INFO L215 NwaCegarLoop]: trace histogram [128, 127, 127, 127, 127, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 18:29:25,364 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2024-11-10 18:29:25,543 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2024-11-10 18:29:25,544 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-10 18:29:25,544 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 18:29:25,544 INFO L85 PathProgramCache]: Analyzing trace with hash -671453525, now seen corresponding path program 1 times [2024-11-10 18:29:25,544 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 18:29:25,544 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [433488348] [2024-11-10 18:29:25,545 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 18:29:25,545 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 18:29:25,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:29:26,032 INFO L134 CoverageAnalysis]: Checked inductivity of 40274 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 40270 trivial. 0 not checked. [2024-11-10 18:29:26,033 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 18:29:26,033 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [433488348] [2024-11-10 18:29:26,033 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [433488348] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 18:29:26,033 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 18:29:26,033 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-10 18:29:26,036 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [117588515] [2024-11-10 18:29:26,037 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 18:29:26,037 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-10 18:29:26,037 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 18:29:26,038 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-10 18:29:26,038 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-10 18:29:26,038 INFO L87 Difference]: Start difference. First operand 667 states and 669 transitions. Second operand has 4 states, 3 states have (on average 9.333333333333334) internal successors, (28), 4 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 18:29:26,059 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 18:29:26,059 INFO L93 Difference]: Finished difference Result 667 states and 669 transitions. [2024-11-10 18:29:26,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-10 18:29:26,060 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 9.333333333333334) internal successors, (28), 4 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 666 [2024-11-10 18:29:26,061 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 18:29:26,061 INFO L225 Difference]: With dead ends: 667 [2024-11-10 18:29:26,061 INFO L226 Difference]: Without dead ends: 0 [2024-11-10 18:29:26,066 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-10 18:29:26,068 INFO L432 NwaCegarLoop]: 18 mSDtfsCounter, 2 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 50 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-10 18:29:26,069 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 50 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-10 18:29:26,069 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-10 18:29:26,069 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-10 18:29:26,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 18:29:26,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-10 18:29:26,070 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 666 [2024-11-10 18:29:26,070 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 18:29:26,070 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-10 18:29:26,070 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 9.333333333333334) internal successors, (28), 4 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 18:29:26,071 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-10 18:29:26,071 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-10 18:29:26,074 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 6 remaining) [2024-11-10 18:29:26,075 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 6 remaining) [2024-11-10 18:29:26,075 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 6 remaining) [2024-11-10 18:29:26,075 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 6 remaining) [2024-11-10 18:29:26,075 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 6 remaining) [2024-11-10 18:29:26,076 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 6 remaining) [2024-11-10 18:29:26,076 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-10 18:29:26,080 INFO L407 BasicCegarLoop]: Path program histogram: [3, 3, 2, 2, 1, 1, 1, 1, 1] [2024-11-10 18:29:26,083 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-10 18:29:26,303 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-10 18:29:26,315 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.11 06:29:26 BoogieIcfgContainer [2024-11-10 18:29:26,316 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-10 18:29:26,316 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-10 18:29:26,317 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-10 18:29:26,317 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-10 18:29:26,317 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 06:28:14" (3/4) ... [2024-11-10 18:29:26,319 INFO L143 WitnessPrinter]: Generating witness for correct program [2024-11-10 18:29:26,329 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 18 nodes and edges [2024-11-10 18:29:26,329 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2024-11-10 18:29:26,330 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-10 18:29:26,330 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-10 18:29:26,433 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-10 18:29:26,433 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-11-10 18:29:26,433 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-10 18:29:26,434 INFO L158 Benchmark]: Toolchain (without parser) took 73290.77ms. Allocated memory was 161.5MB in the beginning and 2.2GB in the end (delta: 2.0GB). Free memory was 111.2MB in the beginning and 1.6GB in the end (delta: -1.5GB). Peak memory consumption was 573.0MB. Max. memory is 16.1GB. [2024-11-10 18:29:26,434 INFO L158 Benchmark]: CDTParser took 1.23ms. Allocated memory is still 100.7MB. Free memory is still 66.1MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-10 18:29:26,434 INFO L158 Benchmark]: CACSL2BoogieTranslator took 325.21ms. Allocated memory is still 161.5MB. Free memory was 111.2MB in the beginning and 98.6MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-11-10 18:29:26,434 INFO L158 Benchmark]: Boogie Procedure Inliner took 42.22ms. Allocated memory is still 161.5MB. Free memory was 98.6MB in the beginning and 97.6MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-10 18:29:26,434 INFO L158 Benchmark]: Boogie Preprocessor took 57.13ms. Allocated memory is still 161.5MB. Free memory was 97.6MB in the beginning and 95.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-10 18:29:26,435 INFO L158 Benchmark]: IcfgBuilder took 432.07ms. Allocated memory is still 161.5MB. Free memory was 95.5MB in the beginning and 120.3MB in the end (delta: -24.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-10 18:29:26,435 INFO L158 Benchmark]: TraceAbstraction took 72307.72ms. Allocated memory was 161.5MB in the beginning and 2.2GB in the end (delta: 2.0GB). Free memory was 119.2MB in the beginning and 1.6GB in the end (delta: -1.5GB). Peak memory consumption was 577.9MB. Max. memory is 16.1GB. [2024-11-10 18:29:26,435 INFO L158 Benchmark]: Witness Printer took 116.63ms. Allocated memory is still 2.2GB. Free memory was 1.6GB in the beginning and 1.6GB in the end (delta: 5.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2024-11-10 18:29:26,436 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.23ms. Allocated memory is still 100.7MB. Free memory is still 66.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 325.21ms. Allocated memory is still 161.5MB. Free memory was 111.2MB in the beginning and 98.6MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 42.22ms. Allocated memory is still 161.5MB. Free memory was 98.6MB in the beginning and 97.6MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 57.13ms. Allocated memory is still 161.5MB. Free memory was 97.6MB in the beginning and 95.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * IcfgBuilder took 432.07ms. Allocated memory is still 161.5MB. Free memory was 95.5MB in the beginning and 120.3MB in the end (delta: -24.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * TraceAbstraction took 72307.72ms. Allocated memory was 161.5MB in the beginning and 2.2GB in the end (delta: 2.0GB). Free memory was 119.2MB in the beginning and 1.6GB in the end (delta: -1.5GB). Peak memory consumption was 577.9MB. Max. memory is 16.1GB. * Witness Printer took 116.63ms. Allocated memory is still 2.2GB. Free memory was 1.6GB in the beginning and 1.6GB in the end (delta: 5.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 28]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 28]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 24]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 24]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 19]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 19]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 34 locations, 6 error locations. Started 1 CEGAR loops. OverallTime: 72.0s, OverallIterations: 15, TraceHistogramMax: 128, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.1s, AutomataDifference: 2.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 16 SdHoareTripleChecker+Valid, 1.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 16 mSDsluCounter, 1996 SdHoareTripleChecker+Invalid, 1.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1669 mSDsCounter, 8 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1363 IncrementalHoareTripleChecker+Invalid, 1371 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 8 mSolverCounterUnsat, 327 mSDtfsCounter, 1363 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2713 GetRequests, 1900 SyntacticMatches, 0 SemanticMatches, 813 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44528 ImplicationChecksByTransitivity, 37.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=668occurred in iteration=13, InterpolantAutomatonStates: 537, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 15 MinimizatonAttempts, 8 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.4s SsaConstructionTime, 1.1s SatisfiabilityAnalysisTime, 64.3s InterpolantComputationTime, 3922 NumberOfCodeBlocks, 3217 NumberOfCodeBlocksAsserted, 28 NumberOfCheckSat, 4604 ConstructedInterpolants, 0 QuantifiedInterpolants, 9682 SizeOfPredicates, 0 NumberOfNonLiveVariables, 3145 ConjunctsInSsa, 265 ConjunctsInUnsatCore, 30 InterpolantComputations, 9 PerfectInterpolantSequences, 84766/163955 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 6 specifications checked. All of them hold - InvariantResult [Line: 28]: Location Invariant Derived location invariant: null - InvariantResult [Line: 19]: Location Invariant Derived location invariant: null - InvariantResult [Line: 24]: Location Invariant Derived location invariant: null RESULT: Ultimate proved your program to be correct! [2024-11-10 18:29:26,466 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE