./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/array-crafted/xor4.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 3289d67d 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-crafted/xor4.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 90b7e6947bda838aad0c5e01877b9a712c46c1a2dc1a2af9f1fb1c6266593b6a --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-3289d67-m [2024-11-17 03:49:27,845 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-17 03:49:27,923 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-17 03:49:27,928 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-17 03:49:27,930 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-17 03:49:27,953 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-17 03:49:27,954 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-17 03:49:27,954 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-17 03:49:27,954 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-17 03:49:27,955 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-17 03:49:27,955 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-17 03:49:27,956 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-17 03:49:27,957 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-17 03:49:27,959 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-17 03:49:27,959 INFO L153 SettingsManager]: * Use SBE=true [2024-11-17 03:49:27,959 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-17 03:49:27,960 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-17 03:49:27,960 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-17 03:49:27,962 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-17 03:49:27,962 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-17 03:49:27,963 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-17 03:49:27,963 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-17 03:49:27,963 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-17 03:49:27,964 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-17 03:49:27,966 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-17 03:49:27,966 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-17 03:49:27,966 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-17 03:49:27,966 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-17 03:49:27,967 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-17 03:49:27,967 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-17 03:49:27,968 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-17 03:49:27,968 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-17 03:49:27,968 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-17 03:49:27,969 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-17 03:49:27,970 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-17 03:49:27,970 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-17 03:49:27,970 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-17 03:49:27,970 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-17 03:49:27,970 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-17 03:49:27,970 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-17 03:49:27,970 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-17 03:49:27,971 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-17 03:49:27,971 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-17 03:49:27,972 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-17 03:49:27,972 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 90b7e6947bda838aad0c5e01877b9a712c46c1a2dc1a2af9f1fb1c6266593b6a [2024-11-17 03:49:28,200 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-17 03:49:28,224 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-17 03:49:28,227 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-17 03:49:28,228 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-17 03:49:28,228 INFO L274 PluginConnector]: CDTParser initialized [2024-11-17 03:49:28,229 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/array-crafted/xor4.i [2024-11-17 03:49:29,682 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-17 03:49:29,848 INFO L384 CDTParser]: Found 1 translation units. [2024-11-17 03:49:29,849 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-crafted/xor4.i [2024-11-17 03:49:29,855 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/40be1cad8/ea5b8a02841a40e48736501a831b9289/FLAGb7ddb1147 [2024-11-17 03:49:30,252 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/40be1cad8/ea5b8a02841a40e48736501a831b9289 [2024-11-17 03:49:30,256 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-17 03:49:30,258 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-17 03:49:30,263 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-17 03:49:30,263 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-17 03:49:30,269 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-17 03:49:30,269 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 03:49:30" (1/1) ... [2024-11-17 03:49:30,270 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@793d5295 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:49:30, skipping insertion in model container [2024-11-17 03:49:30,270 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 03:49:30" (1/1) ... [2024-11-17 03:49:30,288 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-17 03:49:30,507 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-17 03:49:30,518 INFO L200 MainTranslator]: Completed pre-run [2024-11-17 03:49:30,547 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-17 03:49:30,563 INFO L204 MainTranslator]: Completed translation [2024-11-17 03:49:30,564 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:49:30 WrapperNode [2024-11-17 03:49:30,564 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-17 03:49:30,565 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-17 03:49:30,565 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-17 03:49:30,566 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-17 03:49:30,572 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:49:30" (1/1) ... [2024-11-17 03:49:30,580 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:49:30" (1/1) ... [2024-11-17 03:49:30,612 INFO L138 Inliner]: procedures = 16, calls = 31, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 82 [2024-11-17 03:49:30,612 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-17 03:49:30,613 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-17 03:49:30,613 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-17 03:49:30,613 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-17 03:49:30,623 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:49:30" (1/1) ... [2024-11-17 03:49:30,623 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:49:30" (1/1) ... [2024-11-17 03:49:30,625 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:49:30" (1/1) ... [2024-11-17 03:49:30,645 INFO L175 MemorySlicer]: Split 20 memory accesses to 3 slices as follows [2, 7, 11]. 55 percent of accesses are in the largest equivalence class. The 9 initializations are split as follows [2, 7, 0]. The 5 writes are split as follows [0, 0, 5]. [2024-11-17 03:49:30,646 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:49:30" (1/1) ... [2024-11-17 03:49:30,646 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:49:30" (1/1) ... [2024-11-17 03:49:30,651 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:49:30" (1/1) ... [2024-11-17 03:49:30,656 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:49:30" (1/1) ... [2024-11-17 03:49:30,657 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:49:30" (1/1) ... [2024-11-17 03:49:30,659 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:49:30" (1/1) ... [2024-11-17 03:49:30,661 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-17 03:49:30,662 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-17 03:49:30,662 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-17 03:49:30,662 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-17 03:49:30,663 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:49:30" (1/1) ... [2024-11-17 03:49:30,668 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-17 03:49:30,681 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 03:49:30,697 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) [2024-11-17 03:49:30,701 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 [2024-11-17 03:49:30,748 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-17 03:49:30,748 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-17 03:49:30,748 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-17 03:49:30,748 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-17 03:49:30,748 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-17 03:49:30,749 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-17 03:49:30,749 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-17 03:49:30,749 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-17 03:49:30,749 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-17 03:49:30,750 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-17 03:49:30,750 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-17 03:49:30,751 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-17 03:49:30,751 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-17 03:49:30,751 INFO L130 BoogieDeclarations]: Found specification of procedure xor [2024-11-17 03:49:30,751 INFO L138 BoogieDeclarations]: Found implementation of procedure xor [2024-11-17 03:49:30,751 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-17 03:49:30,846 INFO L256 CfgBuilder]: Building ICFG [2024-11-17 03:49:30,849 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-17 03:49:31,015 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L31: call ULTIMATE.dealloc(main_~#x~0#1.base, main_~#x~0#1.offset);havoc main_~#x~0#1.base, main_~#x~0#1.offset; [2024-11-17 03:49:31,069 INFO L? ?]: Removed 33 outVars from TransFormulas that were not future-live. [2024-11-17 03:49:31,069 INFO L307 CfgBuilder]: Performing block encoding [2024-11-17 03:49:31,098 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-17 03:49:31,099 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-17 03:49:31,099 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.11 03:49:31 BoogieIcfgContainer [2024-11-17 03:49:31,099 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-17 03:49:31,139 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-17 03:49:31,139 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-17 03:49:31,149 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-17 03:49:31,150 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.11 03:49:30" (1/3) ... [2024-11-17 03:49:31,150 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@31ded556 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.11 03:49:31, skipping insertion in model container [2024-11-17 03:49:31,151 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:49:30" (2/3) ... [2024-11-17 03:49:31,151 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@31ded556 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.11 03:49:31, skipping insertion in model container [2024-11-17 03:49:31,151 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.11 03:49:31" (3/3) ... [2024-11-17 03:49:31,152 INFO L112 eAbstractionObserver]: Analyzing ICFG xor4.i [2024-11-17 03:49:31,190 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-17 03:49:31,191 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2024-11-17 03:49:31,250 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-17 03:49:31,256 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;@bec88fa, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-17 03:49:31,257 INFO L334 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2024-11-17 03:49:31,261 INFO L276 IsEmpty]: Start isEmpty. Operand has 52 states, 39 states have (on average 1.4871794871794872) internal successors, (58), 47 states have internal predecessors, (58), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-17 03:49:31,266 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2024-11-17 03:49:31,266 INFO L207 NwaCegarLoop]: Found error trace [2024-11-17 03:49:31,267 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2024-11-17 03:49:31,267 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-11-17 03:49:31,272 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 03:49:31,272 INFO L85 PathProgramCache]: Analyzing trace with hash 69631460, now seen corresponding path program 1 times [2024-11-17 03:49:31,280 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 03:49:31,280 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [530071368] [2024-11-17 03:49:31,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 03:49:31,281 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 03:49:31,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 03:49:31,509 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 03:49:31,509 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 03:49:31,509 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [530071368] [2024-11-17 03:49:31,510 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [530071368] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 03:49:31,510 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 03:49:31,511 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-17 03:49:31,513 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [883388962] [2024-11-17 03:49:31,514 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 03:49:31,518 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-17 03:49:31,518 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 03:49:31,540 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-17 03:49:31,540 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-17 03:49:31,542 INFO L87 Difference]: Start difference. First operand has 52 states, 39 states have (on average 1.4871794871794872) internal successors, (58), 47 states have internal predecessors, (58), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 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) [2024-11-17 03:49:31,597 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 03:49:31,598 INFO L93 Difference]: Finished difference Result 101 states and 128 transitions. [2024-11-17 03:49:31,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-17 03:49:31,602 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 [2024-11-17 03:49:31,602 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-17 03:49:31,608 INFO L225 Difference]: With dead ends: 101 [2024-11-17 03:49:31,608 INFO L226 Difference]: Without dead ends: 49 [2024-11-17 03:49:31,611 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 [2024-11-17 03:49:31,616 INFO L432 NwaCegarLoop]: 53 mSDtfsCounter, 2 mSDsluCounter, 98 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 151 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-17 03:49:31,617 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 151 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-17 03:49:31,636 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2024-11-17 03:49:31,656 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 48. [2024-11-17 03:49:31,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48 states, 36 states have (on average 1.3888888888888888) internal successors, (50), 44 states have internal predecessors, (50), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-17 03:49:31,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 55 transitions. [2024-11-17 03:49:31,663 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 55 transitions. Word has length 5 [2024-11-17 03:49:31,663 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-17 03:49:31,663 INFO L471 AbstractCegarLoop]: Abstraction has 48 states and 55 transitions. [2024-11-17 03:49:31,665 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) [2024-11-17 03:49:31,666 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 55 transitions. [2024-11-17 03:49:31,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2024-11-17 03:49:31,667 INFO L207 NwaCegarLoop]: Found error trace [2024-11-17 03:49:31,667 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1] [2024-11-17 03:49:31,667 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-17 03:49:31,668 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-11-17 03:49:31,669 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 03:49:31,670 INFO L85 PathProgramCache]: Analyzing trace with hash 1988975266, now seen corresponding path program 1 times [2024-11-17 03:49:31,670 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 03:49:31,670 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1615512375] [2024-11-17 03:49:31,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 03:49:31,671 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 03:49:31,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 03:49:31,825 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 03:49:31,825 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 03:49:31,826 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1615512375] [2024-11-17 03:49:31,826 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1615512375] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-17 03:49:31,826 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1826613561] [2024-11-17 03:49:31,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 03:49:31,827 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 03:49:31,827 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 03:49:31,829 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) [2024-11-17 03:49:31,830 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-17 03:49:31,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 03:49:31,890 INFO L255 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-17 03:49:31,899 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 03:49:31,966 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 03:49:31,967 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-17 03:49:31,967 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1826613561] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 03:49:31,967 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-17 03:49:31,967 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2024-11-17 03:49:31,968 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [996052207] [2024-11-17 03:49:31,968 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 03:49:31,969 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-17 03:49:31,969 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 03:49:31,969 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-17 03:49:31,970 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-17 03:49:31,970 INFO L87 Difference]: Start difference. First operand 48 states and 55 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) [2024-11-17 03:49:32,021 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 03:49:32,023 INFO L93 Difference]: Finished difference Result 49 states and 56 transitions. [2024-11-17 03:49:32,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-17 03:49:32,024 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 [2024-11-17 03:49:32,025 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-17 03:49:32,026 INFO L225 Difference]: With dead ends: 49 [2024-11-17 03:49:32,026 INFO L226 Difference]: Without dead ends: 48 [2024-11-17 03:49:32,027 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-17 03:49:32,029 INFO L432 NwaCegarLoop]: 44 mSDtfsCounter, 2 mSDsluCounter, 127 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 171 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-17 03:49:32,030 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 171 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-17 03:49:32,031 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2024-11-17 03:49:32,037 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 47. [2024-11-17 03:49:32,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47 states, 36 states have (on average 1.3611111111111112) internal successors, (49), 43 states have internal predecessors, (49), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-17 03:49:32,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 54 transitions. [2024-11-17 03:49:32,041 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 54 transitions. Word has length 10 [2024-11-17 03:49:32,042 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-17 03:49:32,042 INFO L471 AbstractCegarLoop]: Abstraction has 47 states and 54 transitions. [2024-11-17 03:49:32,042 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) [2024-11-17 03:49:32,042 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 54 transitions. [2024-11-17 03:49:32,043 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-11-17 03:49:32,043 INFO L207 NwaCegarLoop]: Found error trace [2024-11-17 03:49:32,043 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1] [2024-11-17 03:49:32,057 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-17 03:49:32,247 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 [2024-11-17 03:49:32,248 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-11-17 03:49:32,249 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 03:49:32,249 INFO L85 PathProgramCache]: Analyzing trace with hash 1528691104, now seen corresponding path program 1 times [2024-11-17 03:49:32,249 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 03:49:32,249 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [430517959] [2024-11-17 03:49:32,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 03:49:32,249 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 03:49:32,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 03:49:32,302 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-17 03:49:32,303 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 03:49:32,303 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [430517959] [2024-11-17 03:49:32,303 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [430517959] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 03:49:32,303 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 03:49:32,303 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-17 03:49:32,303 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1209781810] [2024-11-17 03:49:32,303 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 03:49:32,304 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-17 03:49:32,304 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 03:49:32,304 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-17 03:49:32,305 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-17 03:49:32,305 INFO L87 Difference]: Start difference. First operand 47 states and 54 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) [2024-11-17 03:49:32,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 03:49:32,325 INFO L93 Difference]: Finished difference Result 47 states and 54 transitions. [2024-11-17 03:49:32,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-17 03:49:32,326 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 [2024-11-17 03:49:32,326 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-17 03:49:32,327 INFO L225 Difference]: With dead ends: 47 [2024-11-17 03:49:32,327 INFO L226 Difference]: Without dead ends: 46 [2024-11-17 03:49:32,328 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 [2024-11-17 03:49:32,329 INFO L432 NwaCegarLoop]: 45 mSDtfsCounter, 1 mSDsluCounter, 43 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 88 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-17 03:49:32,331 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 88 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-17 03:49:32,332 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2024-11-17 03:49:32,337 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 44. [2024-11-17 03:49:32,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44 states, 34 states have (on average 1.3529411764705883) internal successors, (46), 40 states have internal predecessors, (46), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-17 03:49:32,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 51 transitions. [2024-11-17 03:49:32,339 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 51 transitions. Word has length 11 [2024-11-17 03:49:32,340 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-17 03:49:32,340 INFO L471 AbstractCegarLoop]: Abstraction has 44 states and 51 transitions. [2024-11-17 03:49:32,340 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) [2024-11-17 03:49:32,340 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 51 transitions. [2024-11-17 03:49:32,341 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2024-11-17 03:49:32,341 INFO L207 NwaCegarLoop]: Found error trace [2024-11-17 03:49:32,341 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 03:49:32,341 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-17 03:49:32,342 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting xorErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-11-17 03:49:32,342 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 03:49:32,342 INFO L85 PathProgramCache]: Analyzing trace with hash -1943216837, now seen corresponding path program 1 times [2024-11-17 03:49:32,346 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 03:49:32,346 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2036284996] [2024-11-17 03:49:32,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 03:49:32,347 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 03:49:32,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 03:49:32,452 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 03:49:32,452 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 03:49:32,453 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2036284996] [2024-11-17 03:49:32,453 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2036284996] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-17 03:49:32,453 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1385400587] [2024-11-17 03:49:32,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 03:49:32,457 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 03:49:32,457 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 03:49:32,459 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) [2024-11-17 03:49:32,460 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-17 03:49:32,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 03:49:32,522 INFO L255 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-17 03:49:32,523 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 03:49:32,568 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 03:49:32,568 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-17 03:49:32,614 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 03:49:32,618 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1385400587] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-17 03:49:32,618 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-17 03:49:32,618 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2024-11-17 03:49:32,619 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [338978782] [2024-11-17 03:49:32,619 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-17 03:49:32,619 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-17 03:49:32,619 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 03:49:32,620 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-17 03:49:32,620 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-11-17 03:49:32,621 INFO L87 Difference]: Start difference. First operand 44 states and 51 transitions. Second operand has 10 states, 10 states have (on average 3.0) internal successors, (30), 10 states have internal predecessors, (30), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 03:49:32,687 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 03:49:32,687 INFO L93 Difference]: Finished difference Result 89 states and 104 transitions. [2024-11-17 03:49:32,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-17 03:49:32,688 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 3.0) internal successors, (30), 10 states have internal predecessors, (30), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2024-11-17 03:49:32,688 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-17 03:49:32,689 INFO L225 Difference]: With dead ends: 89 [2024-11-17 03:49:32,689 INFO L226 Difference]: Without dead ends: 54 [2024-11-17 03:49:32,690 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-11-17 03:49:32,691 INFO L432 NwaCegarLoop]: 44 mSDtfsCounter, 0 mSDsluCounter, 167 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 211 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-17 03:49:32,692 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 211 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-17 03:49:32,692 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2024-11-17 03:49:32,697 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 54. [2024-11-17 03:49:32,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54 states, 44 states have (on average 1.2727272727272727) internal successors, (56), 50 states have internal predecessors, (56), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-17 03:49:32,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 61 transitions. [2024-11-17 03:49:32,699 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 61 transitions. Word has length 17 [2024-11-17 03:49:32,699 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-17 03:49:32,700 INFO L471 AbstractCegarLoop]: Abstraction has 54 states and 61 transitions. [2024-11-17 03:49:32,700 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 3.0) internal successors, (30), 10 states have internal predecessors, (30), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 03:49:32,700 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 61 transitions. [2024-11-17 03:49:32,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2024-11-17 03:49:32,701 INFO L207 NwaCegarLoop]: Found error trace [2024-11-17 03:49:32,701 INFO L215 NwaCegarLoop]: trace histogram [4, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 03:49:32,718 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-17 03:49:32,905 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 [2024-11-17 03:49:32,906 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting xorErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-11-17 03:49:32,907 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 03:49:32,907 INFO L85 PathProgramCache]: Analyzing trace with hash 1566245883, now seen corresponding path program 2 times [2024-11-17 03:49:32,907 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 03:49:32,907 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [815966687] [2024-11-17 03:49:32,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 03:49:32,909 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 03:49:32,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 03:49:32,999 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2024-11-17 03:49:32,999 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 03:49:32,999 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [815966687] [2024-11-17 03:49:32,999 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [815966687] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 03:49:32,999 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 03:49:32,999 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-17 03:49:33,000 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [824319577] [2024-11-17 03:49:33,000 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 03:49:33,000 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-17 03:49:33,000 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 03:49:33,001 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-17 03:49:33,001 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-17 03:49:33,002 INFO L87 Difference]: Start difference. First operand 54 states and 61 transitions. Second operand has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 03:49:33,043 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 03:49:33,043 INFO L93 Difference]: Finished difference Result 97 states and 117 transitions. [2024-11-17 03:49:33,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-17 03:49:33,044 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 27 [2024-11-17 03:49:33,045 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-17 03:49:33,045 INFO L225 Difference]: With dead ends: 97 [2024-11-17 03:49:33,045 INFO L226 Difference]: Without dead ends: 64 [2024-11-17 03:49:33,046 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 [2024-11-17 03:49:33,047 INFO L432 NwaCegarLoop]: 43 mSDtfsCounter, 8 mSDsluCounter, 82 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 125 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-17 03:49:33,047 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 125 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-17 03:49:33,048 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2024-11-17 03:49:33,055 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 63. [2024-11-17 03:49:33,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63 states, 53 states have (on average 1.2830188679245282) internal successors, (68), 59 states have internal predecessors, (68), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-17 03:49:33,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 73 transitions. [2024-11-17 03:49:33,059 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 73 transitions. Word has length 27 [2024-11-17 03:49:33,060 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-17 03:49:33,060 INFO L471 AbstractCegarLoop]: Abstraction has 63 states and 73 transitions. [2024-11-17 03:49:33,060 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 03:49:33,060 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 73 transitions. [2024-11-17 03:49:33,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2024-11-17 03:49:33,061 INFO L207 NwaCegarLoop]: Found error trace [2024-11-17 03:49:33,063 INFO L215 NwaCegarLoop]: trace histogram [4, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 03:49:33,063 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-17 03:49:33,063 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting xorErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-11-17 03:49:33,063 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 03:49:33,064 INFO L85 PathProgramCache]: Analyzing trace with hash 337152379, now seen corresponding path program 1 times [2024-11-17 03:49:33,064 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 03:49:33,064 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [360298456] [2024-11-17 03:49:33,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 03:49:33,064 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 03:49:33,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 03:49:33,252 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-17 03:49:33,253 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 03:49:33,253 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [360298456] [2024-11-17 03:49:33,253 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [360298456] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-17 03:49:33,254 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1172846772] [2024-11-17 03:49:33,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 03:49:33,254 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 03:49:33,254 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 03:49:33,256 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) [2024-11-17 03:49:33,258 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-17 03:49:33,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 03:49:33,330 INFO L255 TraceCheckSpWp]: Trace formula consists of 133 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-17 03:49:33,331 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 03:49:33,385 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-17 03:49:33,386 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-17 03:49:33,509 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-17 03:49:33,510 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1172846772] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-17 03:49:33,510 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-17 03:49:33,510 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 18 [2024-11-17 03:49:33,510 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [16037253] [2024-11-17 03:49:33,511 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-17 03:49:33,511 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-17 03:49:33,511 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 03:49:33,512 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-17 03:49:33,512 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2024-11-17 03:49:33,512 INFO L87 Difference]: Start difference. First operand 63 states and 73 transitions. Second operand has 18 states, 18 states have (on average 2.9444444444444446) internal successors, (53), 18 states have internal predecessors, (53), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 03:49:33,578 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 03:49:33,582 INFO L93 Difference]: Finished difference Result 127 states and 150 transitions. [2024-11-17 03:49:33,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-17 03:49:33,583 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.9444444444444446) internal successors, (53), 18 states have internal predecessors, (53), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 34 [2024-11-17 03:49:33,583 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-17 03:49:33,584 INFO L225 Difference]: With dead ends: 127 [2024-11-17 03:49:33,584 INFO L226 Difference]: Without dead ends: 83 [2024-11-17 03:49:33,585 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 82 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2024-11-17 03:49:33,585 INFO L432 NwaCegarLoop]: 44 mSDtfsCounter, 0 mSDsluCounter, 296 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 340 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-17 03:49:33,585 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 340 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-17 03:49:33,586 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2024-11-17 03:49:33,593 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 83. [2024-11-17 03:49:33,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 83 states, 73 states have (on average 1.2054794520547945) internal successors, (88), 79 states have internal predecessors, (88), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-17 03:49:33,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 93 transitions. [2024-11-17 03:49:33,598 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 93 transitions. Word has length 34 [2024-11-17 03:49:33,598 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-17 03:49:33,598 INFO L471 AbstractCegarLoop]: Abstraction has 83 states and 93 transitions. [2024-11-17 03:49:33,598 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.9444444444444446) internal successors, (53), 18 states have internal predecessors, (53), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 03:49:33,598 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 93 transitions. [2024-11-17 03:49:33,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2024-11-17 03:49:33,599 INFO L207 NwaCegarLoop]: Found error trace [2024-11-17 03:49:33,599 INFO L215 NwaCegarLoop]: trace histogram [8, 7, 7, 7, 7, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 03:49:33,616 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-17 03:49:33,800 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 [2024-11-17 03:49:33,800 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting xorErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-11-17 03:49:33,801 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 03:49:33,801 INFO L85 PathProgramCache]: Analyzing trace with hash -1617667077, now seen corresponding path program 2 times [2024-11-17 03:49:33,801 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 03:49:33,801 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [745105290] [2024-11-17 03:49:33,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 03:49:33,801 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 03:49:33,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 03:49:34,158 INFO L134 CoverageAnalysis]: Checked inductivity of 124 backedges. 0 proven. 119 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-17 03:49:34,158 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 03:49:34,158 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [745105290] [2024-11-17 03:49:34,158 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [745105290] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-17 03:49:34,158 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1789838337] [2024-11-17 03:49:34,159 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-17 03:49:34,159 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 03:49:34,159 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 03:49:34,161 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) [2024-11-17 03:49:34,163 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-17 03:49:34,270 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-17 03:49:34,270 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-17 03:49:34,275 INFO L255 TraceCheckSpWp]: Trace formula consists of 189 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-17 03:49:34,279 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 03:49:34,383 INFO L134 CoverageAnalysis]: Checked inductivity of 124 backedges. 0 proven. 119 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-17 03:49:34,384 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-17 03:49:34,729 INFO L134 CoverageAnalysis]: Checked inductivity of 124 backedges. 0 proven. 119 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-17 03:49:34,732 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1789838337] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-17 03:49:34,732 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-17 03:49:34,733 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 34 [2024-11-17 03:49:34,733 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1759085295] [2024-11-17 03:49:34,733 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-17 03:49:34,733 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2024-11-17 03:49:34,734 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 03:49:34,734 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2024-11-17 03:49:34,735 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=306, Invalid=816, Unknown=0, NotChecked=0, Total=1122 [2024-11-17 03:49:34,735 INFO L87 Difference]: Start difference. First operand 83 states and 93 transitions. Second operand has 34 states, 34 states have (on average 2.735294117647059) internal successors, (93), 34 states have internal predecessors, (93), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 03:49:34,867 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 03:49:34,868 INFO L93 Difference]: Finished difference Result 167 states and 194 transitions. [2024-11-17 03:49:34,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2024-11-17 03:49:34,868 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 34 states have (on average 2.735294117647059) internal successors, (93), 34 states have internal predecessors, (93), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 54 [2024-11-17 03:49:34,869 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-17 03:49:34,871 INFO L225 Difference]: With dead ends: 167 [2024-11-17 03:49:34,871 INFO L226 Difference]: Without dead ends: 123 [2024-11-17 03:49:34,873 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 123 GetRequests, 91 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 334 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=306, Invalid=816, Unknown=0, NotChecked=0, Total=1122 [2024-11-17 03:49:34,876 INFO L432 NwaCegarLoop]: 44 mSDtfsCounter, 0 mSDsluCounter, 557 mSDsCounter, 0 mSdLazyCounter, 123 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 601 SdHoareTripleChecker+Invalid, 123 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 123 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-17 03:49:34,876 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 601 Invalid, 123 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 123 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-17 03:49:34,877 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123 states. [2024-11-17 03:49:34,888 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123 to 123. [2024-11-17 03:49:34,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 123 states, 113 states have (on average 1.1327433628318584) internal successors, (128), 119 states have internal predecessors, (128), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-17 03:49:34,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 133 transitions. [2024-11-17 03:49:34,892 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 133 transitions. Word has length 54 [2024-11-17 03:49:34,893 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-17 03:49:34,893 INFO L471 AbstractCegarLoop]: Abstraction has 123 states and 133 transitions. [2024-11-17 03:49:34,893 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 2.735294117647059) internal successors, (93), 34 states have internal predecessors, (93), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 03:49:34,893 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 133 transitions. [2024-11-17 03:49:34,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-11-17 03:49:34,895 INFO L207 NwaCegarLoop]: Found error trace [2024-11-17 03:49:34,895 INFO L215 NwaCegarLoop]: trace histogram [16, 15, 15, 15, 15, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 03:49:34,916 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-17 03:49:35,095 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 [2024-11-17 03:49:35,096 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting xorErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-11-17 03:49:35,096 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 03:49:35,096 INFO L85 PathProgramCache]: Analyzing trace with hash 1296384251, now seen corresponding path program 3 times [2024-11-17 03:49:35,096 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 03:49:35,096 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1912199886] [2024-11-17 03:49:35,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 03:49:35,097 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 03:49:35,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 03:49:35,941 INFO L134 CoverageAnalysis]: Checked inductivity of 560 backedges. 0 proven. 555 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-17 03:49:35,942 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 03:49:35,942 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1912199886] [2024-11-17 03:49:35,942 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1912199886] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-17 03:49:35,942 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [414789681] [2024-11-17 03:49:35,942 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-17 03:49:35,942 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 03:49:35,942 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 03:49:35,944 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) [2024-11-17 03:49:35,947 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-17 03:49:36,027 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-11-17 03:49:36,027 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-17 03:49:36,028 INFO L255 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-17 03:49:36,030 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 03:49:36,133 INFO L134 CoverageAnalysis]: Checked inductivity of 560 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 555 trivial. 0 not checked. [2024-11-17 03:49:36,134 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-17 03:49:36,134 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [414789681] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 03:49:36,134 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-17 03:49:36,134 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [33] total 37 [2024-11-17 03:49:36,134 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [283419353] [2024-11-17 03:49:36,134 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 03:49:36,135 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-17 03:49:36,135 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 03:49:36,135 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-17 03:49:36,136 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=298, Invalid=1034, Unknown=0, NotChecked=0, Total=1332 [2024-11-17 03:49:36,136 INFO L87 Difference]: Start difference. First operand 123 states and 133 transitions. Second operand has 6 states, 5 states have (on average 4.4) internal successors, (22), 6 states have internal predecessors, (22), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 03:49:36,169 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 03:49:36,170 INFO L93 Difference]: Finished difference Result 124 states and 134 transitions. [2024-11-17 03:49:36,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-17 03:49:36,170 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 4.4) internal successors, (22), 6 states have internal predecessors, (22), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2024-11-17 03:49:36,171 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-17 03:49:36,171 INFO L225 Difference]: With dead ends: 124 [2024-11-17 03:49:36,172 INFO L226 Difference]: Without dead ends: 123 [2024-11-17 03:49:36,173 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 126 GetRequests, 91 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 327 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=298, Invalid=1034, Unknown=0, NotChecked=0, Total=1332 [2024-11-17 03:49:36,174 INFO L432 NwaCegarLoop]: 47 mSDtfsCounter, 14 mSDsluCounter, 133 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 180 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-17 03:49:36,174 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 180 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-17 03:49:36,175 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123 states. [2024-11-17 03:49:36,187 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123 to 122. [2024-11-17 03:49:36,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 122 states, 113 states have (on average 1.1238938053097345) internal successors, (127), 118 states have internal predecessors, (127), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-17 03:49:36,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 132 transitions. [2024-11-17 03:49:36,189 INFO L78 Accepts]: Start accepts. Automaton has 122 states and 132 transitions. Word has length 94 [2024-11-17 03:49:36,189 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-17 03:49:36,189 INFO L471 AbstractCegarLoop]: Abstraction has 122 states and 132 transitions. [2024-11-17 03:49:36,189 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 4.4) internal successors, (22), 6 states have internal predecessors, (22), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 03:49:36,189 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 132 transitions. [2024-11-17 03:49:36,190 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-11-17 03:49:36,190 INFO L207 NwaCegarLoop]: Found error trace [2024-11-17 03:49:36,191 INFO L215 NwaCegarLoop]: trace histogram [16, 15, 15, 15, 15, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 03:49:36,207 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-17 03:49:36,391 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 [2024-11-17 03:49:36,392 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting xorErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-11-17 03:49:36,392 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 03:49:36,392 INFO L85 PathProgramCache]: Analyzing trace with hash 1533206134, now seen corresponding path program 1 times [2024-11-17 03:49:36,392 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 03:49:36,392 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1440246919] [2024-11-17 03:49:36,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 03:49:36,392 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 03:49:36,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 03:49:36,474 INFO L134 CoverageAnalysis]: Checked inductivity of 561 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 557 trivial. 0 not checked. [2024-11-17 03:49:36,474 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 03:49:36,474 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1440246919] [2024-11-17 03:49:36,474 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1440246919] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 03:49:36,474 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 03:49:36,475 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-17 03:49:36,475 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1033969447] [2024-11-17 03:49:36,475 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 03:49:36,475 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-17 03:49:36,475 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 03:49:36,476 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-17 03:49:36,476 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-17 03:49:36,476 INFO L87 Difference]: Start difference. First operand 122 states and 132 transitions. Second operand has 4 states, 3 states have (on average 7.333333333333333) internal successors, (22), 4 states have internal predecessors, (22), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 03:49:36,491 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 03:49:36,491 INFO L93 Difference]: Finished difference Result 122 states and 132 transitions. [2024-11-17 03:49:36,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-17 03:49:36,491 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 7.333333333333333) internal successors, (22), 4 states have internal predecessors, (22), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 95 [2024-11-17 03:49:36,492 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-17 03:49:36,493 INFO L225 Difference]: With dead ends: 122 [2024-11-17 03:49:36,493 INFO L226 Difference]: Without dead ends: 119 [2024-11-17 03:49:36,493 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 [2024-11-17 03:49:36,493 INFO L432 NwaCegarLoop]: 41 mSDtfsCounter, 8 mSDsluCounter, 74 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 115 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-17 03:49:36,494 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 115 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-17 03:49:36,494 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states. [2024-11-17 03:49:36,498 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 112. [2024-11-17 03:49:36,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 112 states, 105 states have (on average 1.0857142857142856) internal successors, (114), 108 states have internal predecessors, (114), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-17 03:49:36,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 112 states and 118 transitions. [2024-11-17 03:49:36,500 INFO L78 Accepts]: Start accepts. Automaton has 112 states and 118 transitions. Word has length 95 [2024-11-17 03:49:36,500 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-17 03:49:36,500 INFO L471 AbstractCegarLoop]: Abstraction has 112 states and 118 transitions. [2024-11-17 03:49:36,500 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 7.333333333333333) internal successors, (22), 4 states have internal predecessors, (22), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 03:49:36,501 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 118 transitions. [2024-11-17 03:49:36,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2024-11-17 03:49:36,502 INFO L207 NwaCegarLoop]: Found error trace [2024-11-17 03:49:36,502 INFO L215 NwaCegarLoop]: trace histogram [16, 15, 15, 15, 15, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 03:49:36,502 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-17 03:49:36,502 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-11-17 03:49:36,503 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 03:49:36,503 INFO L85 PathProgramCache]: Analyzing trace with hash 2090002809, now seen corresponding path program 1 times [2024-11-17 03:49:36,503 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 03:49:36,503 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [572695651] [2024-11-17 03:49:36,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 03:49:36,503 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 03:49:36,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 03:49:36,649 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-11-17 03:49:36,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 03:49:36,673 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-17 03:49:36,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 03:49:36,679 INFO L134 CoverageAnalysis]: Checked inductivity of 576 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 558 trivial. 0 not checked. [2024-11-17 03:49:36,679 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 03:49:36,679 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [572695651] [2024-11-17 03:49:36,679 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [572695651] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-17 03:49:36,679 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1027694653] [2024-11-17 03:49:36,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 03:49:36,680 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 03:49:36,680 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 03:49:36,681 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) [2024-11-17 03:49:36,683 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-17 03:49:36,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 03:49:36,794 INFO L255 TraceCheckSpWp]: Trace formula consists of 355 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-17 03:49:36,797 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 03:49:36,810 INFO L134 CoverageAnalysis]: Checked inductivity of 576 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 576 trivial. 0 not checked. [2024-11-17 03:49:36,810 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-17 03:49:36,810 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1027694653] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 03:49:36,811 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-17 03:49:36,811 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2024-11-17 03:49:36,811 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1348684938] [2024-11-17 03:49:36,811 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 03:49:36,812 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-17 03:49:36,812 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 03:49:36,812 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-17 03:49:36,813 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-17 03:49:36,813 INFO L87 Difference]: Start difference. First operand 112 states and 118 transitions. Second operand has 3 states, 2 states have (on average 12.5) internal successors, (25), 3 states have internal predecessors, (25), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-17 03:49:36,830 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 03:49:36,830 INFO L93 Difference]: Finished difference Result 118 states and 125 transitions. [2024-11-17 03:49:36,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-17 03:49:36,831 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 12.5) internal successors, (25), 3 states have internal predecessors, (25), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 113 [2024-11-17 03:49:36,831 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-17 03:49:36,832 INFO L225 Difference]: With dead ends: 118 [2024-11-17 03:49:36,832 INFO L226 Difference]: Without dead ends: 117 [2024-11-17 03:49:36,832 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 117 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-17 03:49:36,833 INFO L432 NwaCegarLoop]: 38 mSDtfsCounter, 2 mSDsluCounter, 34 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 72 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-17 03:49:36,833 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 72 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-17 03:49:36,834 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117 states. [2024-11-17 03:49:36,838 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117 to 115. [2024-11-17 03:49:36,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 115 states, 108 states have (on average 1.0833333333333333) internal successors, (117), 111 states have internal predecessors, (117), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-17 03:49:36,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 121 transitions. [2024-11-17 03:49:36,842 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 121 transitions. Word has length 113 [2024-11-17 03:49:36,843 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-17 03:49:36,843 INFO L471 AbstractCegarLoop]: Abstraction has 115 states and 121 transitions. [2024-11-17 03:49:36,843 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 12.5) internal successors, (25), 3 states have internal predecessors, (25), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-17 03:49:36,843 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 121 transitions. [2024-11-17 03:49:36,844 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2024-11-17 03:49:36,844 INFO L207 NwaCegarLoop]: Found error trace [2024-11-17 03:49:36,844 INFO L215 NwaCegarLoop]: trace histogram [16, 15, 15, 15, 15, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 03:49:36,861 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-17 03:49:37,045 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 [2024-11-17 03:49:37,045 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-11-17 03:49:37,045 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 03:49:37,045 INFO L85 PathProgramCache]: Analyzing trace with hash 365577627, now seen corresponding path program 1 times [2024-11-17 03:49:37,046 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 03:49:37,046 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1949964953] [2024-11-17 03:49:37,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 03:49:37,046 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 03:49:37,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 03:49:37,154 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-11-17 03:49:37,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 03:49:37,178 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-17 03:49:37,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 03:49:37,184 INFO L134 CoverageAnalysis]: Checked inductivity of 576 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 558 trivial. 0 not checked. [2024-11-17 03:49:37,185 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 03:49:37,185 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1949964953] [2024-11-17 03:49:37,185 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1949964953] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-17 03:49:37,185 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [22469987] [2024-11-17 03:49:37,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 03:49:37,185 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 03:49:37,185 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 03:49:37,187 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) [2024-11-17 03:49:37,189 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-17 03:49:37,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 03:49:37,307 INFO L255 TraceCheckSpWp]: Trace formula consists of 356 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-17 03:49:37,310 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 03:49:37,337 INFO L134 CoverageAnalysis]: Checked inductivity of 576 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 576 trivial. 0 not checked. [2024-11-17 03:49:37,337 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-17 03:49:37,337 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [22469987] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 03:49:37,337 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-17 03:49:37,338 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2024-11-17 03:49:37,338 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [326050421] [2024-11-17 03:49:37,338 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 03:49:37,338 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-17 03:49:37,338 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 03:49:37,339 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-17 03:49:37,339 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-17 03:49:37,339 INFO L87 Difference]: Start difference. First operand 115 states and 121 transitions. Second operand has 3 states, 2 states have (on average 13.0) internal successors, (26), 3 states have internal predecessors, (26), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-17 03:49:37,357 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 03:49:37,357 INFO L93 Difference]: Finished difference Result 118 states and 124 transitions. [2024-11-17 03:49:37,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-17 03:49:37,358 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 13.0) internal successors, (26), 3 states have internal predecessors, (26), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 114 [2024-11-17 03:49:37,358 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-17 03:49:37,359 INFO L225 Difference]: With dead ends: 118 [2024-11-17 03:49:37,359 INFO L226 Difference]: Without dead ends: 117 [2024-11-17 03:49:37,359 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 118 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-17 03:49:37,360 INFO L432 NwaCegarLoop]: 39 mSDtfsCounter, 1 mSDsluCounter, 34 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 73 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-17 03:49:37,360 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 73 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-17 03:49:37,361 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117 states. [2024-11-17 03:49:37,367 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117 to 116. [2024-11-17 03:49:37,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 116 states, 109 states have (on average 1.0825688073394495) internal successors, (118), 112 states have internal predecessors, (118), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-17 03:49:37,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 116 states and 122 transitions. [2024-11-17 03:49:37,368 INFO L78 Accepts]: Start accepts. Automaton has 116 states and 122 transitions. Word has length 114 [2024-11-17 03:49:37,369 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-17 03:49:37,369 INFO L471 AbstractCegarLoop]: Abstraction has 116 states and 122 transitions. [2024-11-17 03:49:37,369 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 13.0) internal successors, (26), 3 states have internal predecessors, (26), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-17 03:49:37,369 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 122 transitions. [2024-11-17 03:49:37,370 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2024-11-17 03:49:37,370 INFO L207 NwaCegarLoop]: Found error trace [2024-11-17 03:49:37,370 INFO L215 NwaCegarLoop]: trace histogram [16, 15, 15, 15, 15, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 03:49:37,386 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2024-11-17 03:49:37,574 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 03:49:37,575 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-11-17 03:49:37,575 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 03:49:37,575 INFO L85 PathProgramCache]: Analyzing trace with hash -867219143, now seen corresponding path program 1 times [2024-11-17 03:49:37,575 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 03:49:37,575 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [658400628] [2024-11-17 03:49:37,575 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 03:49:37,576 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 03:49:37,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 03:49:37,686 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-11-17 03:49:37,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 03:49:37,707 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-17 03:49:37,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 03:49:37,712 INFO L134 CoverageAnalysis]: Checked inductivity of 576 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 558 trivial. 0 not checked. [2024-11-17 03:49:37,712 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 03:49:37,713 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [658400628] [2024-11-17 03:49:37,713 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [658400628] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-17 03:49:37,713 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1419998943] [2024-11-17 03:49:37,713 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 03:49:37,713 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 03:49:37,713 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 03:49:37,715 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) [2024-11-17 03:49:37,716 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-17 03:49:37,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 03:49:37,843 INFO L255 TraceCheckSpWp]: Trace formula consists of 363 conjuncts, 32 conjuncts are in the unsatisfiable core [2024-11-17 03:49:37,846 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 03:49:38,406 INFO L134 CoverageAnalysis]: Checked inductivity of 576 backedges. 0 proven. 555 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2024-11-17 03:49:38,406 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-17 03:49:39,505 INFO L134 CoverageAnalysis]: Checked inductivity of 576 backedges. 0 proven. 555 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2024-11-17 03:49:39,506 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1419998943] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-17 03:49:39,506 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-17 03:49:39,506 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 33, 33] total 67 [2024-11-17 03:49:39,506 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1373450415] [2024-11-17 03:49:39,506 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-17 03:49:39,507 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 67 states [2024-11-17 03:49:39,507 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 03:49:39,508 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 67 interpolants. [2024-11-17 03:49:39,510 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1063, Invalid=3359, Unknown=0, NotChecked=0, Total=4422 [2024-11-17 03:49:39,510 INFO L87 Difference]: Start difference. First operand 116 states and 122 transitions. Second operand has 67 states, 67 states have (on average 3.074626865671642) internal successors, (206), 67 states have internal predecessors, (206), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 1 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-17 03:49:39,742 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 03:49:39,742 INFO L93 Difference]: Finished difference Result 248 states and 284 transitions. [2024-11-17 03:49:39,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 66 states. [2024-11-17 03:49:39,743 INFO L78 Accepts]: Start accepts. Automaton has has 67 states, 67 states have (on average 3.074626865671642) internal successors, (206), 67 states have internal predecessors, (206), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 1 states have call predecessors, (5), 2 states have call successors, (5) Word has length 116 [2024-11-17 03:49:39,743 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-17 03:49:39,744 INFO L225 Difference]: With dead ends: 248 [2024-11-17 03:49:39,744 INFO L226 Difference]: Without dead ends: 211 [2024-11-17 03:49:39,747 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 239 GetRequests, 174 SyntacticMatches, 0 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1171 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=1063, Invalid=3359, Unknown=0, NotChecked=0, Total=4422 [2024-11-17 03:49:39,747 INFO L432 NwaCegarLoop]: 34 mSDtfsCounter, 14 mSDsluCounter, 388 mSDsCounter, 0 mSdLazyCounter, 234 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 422 SdHoareTripleChecker+Invalid, 234 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 234 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-17 03:49:39,748 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 422 Invalid, 234 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 234 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-17 03:49:39,749 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 211 states. [2024-11-17 03:49:39,756 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 211 to 206. [2024-11-17 03:49:39,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 206 states, 199 states have (on average 1.0603015075376885) internal successors, (211), 202 states have internal predecessors, (211), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-17 03:49:39,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 206 states to 206 states and 215 transitions. [2024-11-17 03:49:39,759 INFO L78 Accepts]: Start accepts. Automaton has 206 states and 215 transitions. Word has length 116 [2024-11-17 03:49:39,760 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-17 03:49:39,760 INFO L471 AbstractCegarLoop]: Abstraction has 206 states and 215 transitions. [2024-11-17 03:49:39,760 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 67 states, 67 states have (on average 3.074626865671642) internal successors, (206), 67 states have internal predecessors, (206), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 1 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-17 03:49:39,760 INFO L276 IsEmpty]: Start isEmpty. Operand 206 states and 215 transitions. [2024-11-17 03:49:39,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2024-11-17 03:49:39,761 INFO L207 NwaCegarLoop]: Found error trace [2024-11-17 03:49:39,762 INFO L215 NwaCegarLoop]: trace histogram [32, 31, 31, 31, 31, 6, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 03:49:39,781 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-11-17 03:49:39,962 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,SelfDestructingSolverStorable11 [2024-11-17 03:49:39,963 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-11-17 03:49:39,963 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 03:49:39,963 INFO L85 PathProgramCache]: Analyzing trace with hash -254165571, now seen corresponding path program 2 times [2024-11-17 03:49:39,964 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 03:49:39,964 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [93440600] [2024-11-17 03:49:39,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 03:49:39,964 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 03:49:40,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 03:49:40,130 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2024-11-17 03:49:40,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 03:49:40,138 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2024-11-17 03:49:40,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 03:49:40,146 INFO L134 CoverageAnalysis]: Checked inductivity of 2451 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2451 trivial. 0 not checked. [2024-11-17 03:49:40,146 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 03:49:40,146 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [93440600] [2024-11-17 03:49:40,147 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [93440600] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 03:49:40,147 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 03:49:40,147 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-17 03:49:40,147 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1482361249] [2024-11-17 03:49:40,147 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 03:49:40,148 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-17 03:49:40,148 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 03:49:40,157 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-17 03:49:40,157 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-17 03:49:40,157 INFO L87 Difference]: Start difference. First operand 206 states and 215 transitions. Second operand has 4 states, 3 states have (on average 9.333333333333334) internal successors, (28), 4 states have internal predecessors, (28), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-17 03:49:40,190 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 03:49:40,190 INFO L93 Difference]: Finished difference Result 212 states and 221 transitions. [2024-11-17 03:49:40,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-17 03:49:40,191 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), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 210 [2024-11-17 03:49:40,191 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-17 03:49:40,192 INFO L225 Difference]: With dead ends: 212 [2024-11-17 03:49:40,192 INFO L226 Difference]: Without dead ends: 210 [2024-11-17 03:49:40,192 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-17 03:49:40,193 INFO L432 NwaCegarLoop]: 36 mSDtfsCounter, 2 mSDsluCounter, 65 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 101 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-17 03:49:40,193 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 101 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-17 03:49:40,194 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 210 states. [2024-11-17 03:49:40,201 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 210 to 209. [2024-11-17 03:49:40,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 209 states, 202 states have (on average 1.0594059405940595) internal successors, (214), 205 states have internal predecessors, (214), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-17 03:49:40,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 209 states to 209 states and 218 transitions. [2024-11-17 03:49:40,203 INFO L78 Accepts]: Start accepts. Automaton has 209 states and 218 transitions. Word has length 210 [2024-11-17 03:49:40,203 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-17 03:49:40,203 INFO L471 AbstractCegarLoop]: Abstraction has 209 states and 218 transitions. [2024-11-17 03:49:40,203 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), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-17 03:49:40,203 INFO L276 IsEmpty]: Start isEmpty. Operand 209 states and 218 transitions. [2024-11-17 03:49:40,205 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 216 [2024-11-17 03:49:40,206 INFO L207 NwaCegarLoop]: Found error trace [2024-11-17 03:49:40,206 INFO L215 NwaCegarLoop]: trace histogram [32, 31, 31, 31, 31, 6, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 03:49:40,206 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-17 03:49:40,206 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-11-17 03:49:40,207 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 03:49:40,207 INFO L85 PathProgramCache]: Analyzing trace with hash 1950382779, now seen corresponding path program 1 times [2024-11-17 03:49:40,207 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 03:49:40,207 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1803284973] [2024-11-17 03:49:40,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 03:49:40,207 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 03:49:40,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 03:49:40,407 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2024-11-17 03:49:40,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 03:49:40,413 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2024-11-17 03:49:40,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 03:49:40,418 INFO L134 CoverageAnalysis]: Checked inductivity of 2454 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 2451 trivial. 0 not checked. [2024-11-17 03:49:40,418 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 03:49:40,418 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1803284973] [2024-11-17 03:49:40,418 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1803284973] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-17 03:49:40,418 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [306174393] [2024-11-17 03:49:40,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 03:49:40,418 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 03:49:40,419 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 03:49:40,420 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) [2024-11-17 03:49:40,421 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-17 03:49:40,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 03:49:40,600 INFO L255 TraceCheckSpWp]: Trace formula consists of 625 conjuncts, 64 conjuncts are in the unsatisfiable core [2024-11-17 03:49:40,606 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 03:49:42,124 INFO L134 CoverageAnalysis]: Checked inductivity of 2454 backedges. 0 proven. 2387 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2024-11-17 03:49:42,125 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-17 03:49:45,328 INFO L134 CoverageAnalysis]: Checked inductivity of 2454 backedges. 0 proven. 2387 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2024-11-17 03:49:45,329 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [306174393] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-17 03:49:45,329 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-17 03:49:45,329 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 65, 65] total 131 [2024-11-17 03:49:45,329 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1137557556] [2024-11-17 03:49:45,329 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-17 03:49:45,330 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 131 states [2024-11-17 03:49:45,330 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 03:49:45,332 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 131 interpolants. [2024-11-17 03:49:45,337 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=4166, Invalid=12864, Unknown=0, NotChecked=0, Total=17030 [2024-11-17 03:49:45,338 INFO L87 Difference]: Start difference. First operand 209 states and 218 transitions. Second operand has 131 states, 131 states have (on average 2.8396946564885495) internal successors, (372), 131 states have internal predecessors, (372), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-17 03:49:45,813 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 03:49:45,813 INFO L93 Difference]: Finished difference Result 425 states and 476 transitions. [2024-11-17 03:49:45,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 130 states. [2024-11-17 03:49:45,814 INFO L78 Accepts]: Start accepts. Automaton has has 131 states, 131 states have (on average 2.8396946564885495) internal successors, (372), 131 states have internal predecessors, (372), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 215 [2024-11-17 03:49:45,814 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-17 03:49:45,816 INFO L225 Difference]: With dead ends: 425 [2024-11-17 03:49:45,816 INFO L226 Difference]: Without dead ends: 375 [2024-11-17 03:49:45,820 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 436 GetRequests, 307 SyntacticMatches, 0 SemanticMatches, 129 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4773 ImplicationChecksByTransitivity, 4.3s TimeCoverageRelationStatistics Valid=4166, Invalid=12864, Unknown=0, NotChecked=0, Total=17030 [2024-11-17 03:49:45,821 INFO L432 NwaCegarLoop]: 32 mSDtfsCounter, 2 mSDsluCounter, 391 mSDsCounter, 0 mSdLazyCounter, 445 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 423 SdHoareTripleChecker+Invalid, 445 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 445 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-17 03:49:45,821 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 423 Invalid, 445 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 445 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-17 03:49:45,821 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 375 states. [2024-11-17 03:49:45,828 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 375 to 373. [2024-11-17 03:49:45,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 373 states, 366 states have (on average 1.0327868852459017) internal successors, (378), 369 states have internal predecessors, (378), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-17 03:49:45,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 373 states to 373 states and 382 transitions. [2024-11-17 03:49:45,830 INFO L78 Accepts]: Start accepts. Automaton has 373 states and 382 transitions. Word has length 215 [2024-11-17 03:49:45,831 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-17 03:49:45,831 INFO L471 AbstractCegarLoop]: Abstraction has 373 states and 382 transitions. [2024-11-17 03:49:45,831 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 131 states, 131 states have (on average 2.8396946564885495) internal successors, (372), 131 states have internal predecessors, (372), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-17 03:49:45,831 INFO L276 IsEmpty]: Start isEmpty. Operand 373 states and 382 transitions. [2024-11-17 03:49:45,835 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 377 [2024-11-17 03:49:45,835 INFO L207 NwaCegarLoop]: Found error trace [2024-11-17 03:49:45,836 INFO L215 NwaCegarLoop]: trace histogram [64, 63, 63, 63, 63, 6, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 03:49:45,852 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2024-11-17 03:49:46,039 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 [2024-11-17 03:49:46,040 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-11-17 03:49:46,040 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 03:49:46,040 INFO L85 PathProgramCache]: Analyzing trace with hash 1404530841, now seen corresponding path program 1 times [2024-11-17 03:49:46,040 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 03:49:46,040 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [928688196] [2024-11-17 03:49:46,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 03:49:46,041 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 03:49:46,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 03:49:46,263 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 320 [2024-11-17 03:49:46,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 03:49:46,269 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 342 [2024-11-17 03:49:46,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 03:49:46,276 INFO L134 CoverageAnalysis]: Checked inductivity of 9959 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 9957 trivial. 0 not checked. [2024-11-17 03:49:46,276 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 03:49:46,276 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [928688196] [2024-11-17 03:49:46,276 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [928688196] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 03:49:46,276 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 03:49:46,276 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-17 03:49:46,277 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [708240923] [2024-11-17 03:49:46,277 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 03:49:46,278 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-17 03:49:46,278 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 03:49:46,279 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-17 03:49:46,279 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-17 03:49:46,279 INFO L87 Difference]: Start difference. First operand 373 states and 382 transitions. Second operand has 3 states, 2 states have (on average 16.5) internal successors, (33), 3 states have internal predecessors, (33), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-17 03:49:46,299 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 03:49:46,299 INFO L93 Difference]: Finished difference Result 373 states and 382 transitions. [2024-11-17 03:49:46,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-17 03:49:46,300 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 16.5) internal successors, (33), 3 states have internal predecessors, (33), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 376 [2024-11-17 03:49:46,301 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-17 03:49:46,302 INFO L225 Difference]: With dead ends: 373 [2024-11-17 03:49:46,302 INFO L226 Difference]: Without dead ends: 372 [2024-11-17 03:49:46,303 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-17 03:49:46,304 INFO L432 NwaCegarLoop]: 37 mSDtfsCounter, 2 mSDsluCounter, 34 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 71 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-17 03:49:46,305 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 71 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-17 03:49:46,305 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 372 states. [2024-11-17 03:49:46,311 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 372 to 372. [2024-11-17 03:49:46,312 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 372 states, 366 states have (on average 1.030054644808743) internal successors, (377), 368 states have internal predecessors, (377), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-17 03:49:46,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 372 states to 372 states and 381 transitions. [2024-11-17 03:49:46,313 INFO L78 Accepts]: Start accepts. Automaton has 372 states and 381 transitions. Word has length 376 [2024-11-17 03:49:46,314 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-17 03:49:46,314 INFO L471 AbstractCegarLoop]: Abstraction has 372 states and 381 transitions. [2024-11-17 03:49:46,314 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 16.5) internal successors, (33), 3 states have internal predecessors, (33), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-17 03:49:46,315 INFO L276 IsEmpty]: Start isEmpty. Operand 372 states and 381 transitions. [2024-11-17 03:49:46,318 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 379 [2024-11-17 03:49:46,319 INFO L207 NwaCegarLoop]: Found error trace [2024-11-17 03:49:46,319 INFO L215 NwaCegarLoop]: trace histogram [64, 63, 63, 63, 63, 6, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 03:49:46,319 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-17 03:49:46,319 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-11-17 03:49:46,320 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 03:49:46,320 INFO L85 PathProgramCache]: Analyzing trace with hash 1134406839, now seen corresponding path program 1 times [2024-11-17 03:49:46,320 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 03:49:46,320 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [129671053] [2024-11-17 03:49:46,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 03:49:46,321 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 03:49:46,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 03:49:46,569 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 320 [2024-11-17 03:49:46,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 03:49:46,574 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 342 [2024-11-17 03:49:46,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 03:49:46,580 INFO L134 CoverageAnalysis]: Checked inductivity of 9961 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 9958 trivial. 0 not checked. [2024-11-17 03:49:46,581 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 03:49:46,581 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [129671053] [2024-11-17 03:49:46,581 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [129671053] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 03:49:46,581 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 03:49:46,581 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-17 03:49:46,581 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1559964107] [2024-11-17 03:49:46,581 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 03:49:46,582 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-17 03:49:46,582 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 03:49:46,582 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-17 03:49:46,582 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-17 03:49:46,583 INFO L87 Difference]: Start difference. First operand 372 states and 381 transitions. Second operand has 4 states, 3 states have (on average 11.333333333333334) internal successors, (34), 4 states have internal predecessors, (34), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-17 03:49:46,603 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 03:49:46,604 INFO L93 Difference]: Finished difference Result 372 states and 381 transitions. [2024-11-17 03:49:46,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-17 03:49:46,604 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 11.333333333333334) internal successors, (34), 4 states have internal predecessors, (34), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 378 [2024-11-17 03:49:46,605 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-17 03:49:46,607 INFO L225 Difference]: With dead ends: 372 [2024-11-17 03:49:46,607 INFO L226 Difference]: Without dead ends: 370 [2024-11-17 03:49:46,607 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-17 03:49:46,608 INFO L432 NwaCegarLoop]: 32 mSDtfsCounter, 4 mSDsluCounter, 60 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 92 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-17 03:49:46,608 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 92 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-17 03:49:46,609 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 370 states. [2024-11-17 03:49:46,615 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 370 to 366. [2024-11-17 03:49:46,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 366 states, 362 states have (on average 1.0248618784530388) internal successors, (371), 362 states have internal predecessors, (371), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-17 03:49:46,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 366 states to 366 states and 375 transitions. [2024-11-17 03:49:46,617 INFO L78 Accepts]: Start accepts. Automaton has 366 states and 375 transitions. Word has length 378 [2024-11-17 03:49:46,618 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-17 03:49:46,618 INFO L471 AbstractCegarLoop]: Abstraction has 366 states and 375 transitions. [2024-11-17 03:49:46,618 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 11.333333333333334) internal successors, (34), 4 states have internal predecessors, (34), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-17 03:49:46,618 INFO L276 IsEmpty]: Start isEmpty. Operand 366 states and 375 transitions. [2024-11-17 03:49:46,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 380 [2024-11-17 03:49:46,622 INFO L207 NwaCegarLoop]: Found error trace [2024-11-17 03:49:46,622 INFO L215 NwaCegarLoop]: trace histogram [64, 63, 63, 63, 63, 6, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 03:49:46,623 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-17 03:49:46,623 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-11-17 03:49:46,623 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 03:49:46,623 INFO L85 PathProgramCache]: Analyzing trace with hash 806873624, now seen corresponding path program 1 times [2024-11-17 03:49:46,623 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 03:49:46,624 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [952264088] [2024-11-17 03:49:46,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 03:49:46,624 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 03:49:46,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 03:49:46,836 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 320 [2024-11-17 03:49:46,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 03:49:46,841 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 342 [2024-11-17 03:49:46,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 03:49:46,848 INFO L134 CoverageAnalysis]: Checked inductivity of 9962 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 9957 trivial. 0 not checked. [2024-11-17 03:49:46,848 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 03:49:46,849 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [952264088] [2024-11-17 03:49:46,849 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [952264088] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 03:49:46,849 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 03:49:46,849 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-17 03:49:46,849 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1196179695] [2024-11-17 03:49:46,849 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 03:49:46,850 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-17 03:49:46,850 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 03:49:46,850 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-17 03:49:46,850 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-17 03:49:46,851 INFO L87 Difference]: Start difference. First operand 366 states and 375 transitions. Second operand has 4 states, 3 states have (on average 12.0) internal successors, (36), 4 states have internal predecessors, (36), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-17 03:49:46,870 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 03:49:46,870 INFO L93 Difference]: Finished difference Result 366 states and 375 transitions. [2024-11-17 03:49:46,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-17 03:49:46,871 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 12.0) internal successors, (36), 4 states have internal predecessors, (36), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 379 [2024-11-17 03:49:46,871 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-17 03:49:46,871 INFO L225 Difference]: With dead ends: 366 [2024-11-17 03:49:46,871 INFO L226 Difference]: Without dead ends: 0 [2024-11-17 03:49:46,872 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-17 03:49:46,872 INFO L432 NwaCegarLoop]: 32 mSDtfsCounter, 2 mSDsluCounter, 61 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 93 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-17 03:49:46,873 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 93 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-17 03:49:46,873 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-17 03:49:46,873 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-17 03:49:46,873 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) [2024-11-17 03:49:46,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-17 03:49:46,873 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 379 [2024-11-17 03:49:46,873 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-17 03:49:46,873 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-17 03:49:46,873 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 12.0) internal successors, (36), 4 states have internal predecessors, (36), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-17 03:49:46,874 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-17 03:49:46,874 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-17 03:49:46,877 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 8 remaining) [2024-11-17 03:49:46,877 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 8 remaining) [2024-11-17 03:49:46,877 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 8 remaining) [2024-11-17 03:49:46,877 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 8 remaining) [2024-11-17 03:49:46,877 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 8 remaining) [2024-11-17 03:49:46,877 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 8 remaining) [2024-11-17 03:49:46,878 INFO L782 garLoopResultBuilder]: Registering result SAFE for location xorErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 8 remaining) [2024-11-17 03:49:46,878 INFO L782 garLoopResultBuilder]: Registering result SAFE for location xorErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 8 remaining) [2024-11-17 03:49:46,878 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-17 03:49:46,881 INFO L407 BasicCegarLoop]: Path program histogram: [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 03:49:46,883 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-17 03:49:46,991 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-17 03:49:47,004 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.11 03:49:47 BoogieIcfgContainer [2024-11-17 03:49:47,004 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-17 03:49:47,005 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-17 03:49:47,005 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-17 03:49:47,005 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-17 03:49:47,005 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.11 03:49:31" (3/4) ... [2024-11-17 03:49:47,007 INFO L143 WitnessPrinter]: Generating witness for correct program [2024-11-17 03:49:47,010 INFO L393 IcfgBacktranslator]: Ignoring RootEdge to procedure xor [2024-11-17 03:49:47,016 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 24 nodes and edges [2024-11-17 03:49:47,016 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2024-11-17 03:49:47,016 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2024-11-17 03:49:47,017 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-17 03:49:47,017 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-17 03:49:47,106 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-17 03:49:47,107 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-11-17 03:49:47,107 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-17 03:49:47,107 INFO L158 Benchmark]: Toolchain (without parser) took 16849.48ms. Allocated memory was 163.6MB in the beginning and 257.9MB in the end (delta: 94.4MB). Free memory was 94.5MB in the beginning and 202.5MB in the end (delta: -108.0MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-17 03:49:47,107 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 121.6MB. Free memory is still 81.2MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-17 03:49:47,107 INFO L158 Benchmark]: CACSL2BoogieTranslator took 301.92ms. Allocated memory is still 163.6MB. Free memory was 94.5MB in the beginning and 81.5MB in the end (delta: 13.0MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-11-17 03:49:47,108 INFO L158 Benchmark]: Boogie Procedure Inliner took 47.01ms. Allocated memory is still 163.6MB. Free memory was 81.5MB in the beginning and 79.8MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-17 03:49:47,108 INFO L158 Benchmark]: Boogie Preprocessor took 48.09ms. Allocated memory is still 163.6MB. Free memory was 79.8MB in the beginning and 78.1MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-17 03:49:47,108 INFO L158 Benchmark]: IcfgBuilder took 438.03ms. Allocated memory is still 163.6MB. Free memory was 78.1MB in the beginning and 61.5MB in the end (delta: 16.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-17 03:49:47,109 INFO L158 Benchmark]: TraceAbstraction took 15865.33ms. Allocated memory was 163.6MB in the beginning and 257.9MB in the end (delta: 94.4MB). Free memory was 134.1MB in the beginning and 207.7MB in the end (delta: -73.6MB). Peak memory consumption was 154.3MB. Max. memory is 16.1GB. [2024-11-17 03:49:47,109 INFO L158 Benchmark]: Witness Printer took 101.92ms. Allocated memory is still 257.9MB. Free memory was 207.7MB in the beginning and 202.5MB in the end (delta: 5.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2024-11-17 03:49:47,111 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 121.6MB. Free memory is still 81.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 301.92ms. Allocated memory is still 163.6MB. Free memory was 94.5MB in the beginning and 81.5MB in the end (delta: 13.0MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 47.01ms. Allocated memory is still 163.6MB. Free memory was 81.5MB in the beginning and 79.8MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 48.09ms. Allocated memory is still 163.6MB. Free memory was 79.8MB in the beginning and 78.1MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. * IcfgBuilder took 438.03ms. Allocated memory is still 163.6MB. Free memory was 78.1MB in the beginning and 61.5MB in the end (delta: 16.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 15865.33ms. Allocated memory was 163.6MB in the beginning and 257.9MB in the end (delta: 94.4MB). Free memory was 134.1MB in the beginning and 207.7MB in the end (delta: -73.6MB). Peak memory consumption was 154.3MB. Max. memory is 16.1GB. * Witness Printer took 101.92ms. Allocated memory is still 257.9MB. Free memory was 207.7MB in the beginning and 202.5MB in the end (delta: 5.3MB). 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: 46]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 46]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 47]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 47]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 37]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 37]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 23]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 23]: 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 2 procedures, 52 locations, 8 error locations. Started 1 CEGAR loops. OverallTime: 15.7s, OverallIterations: 17, TraceHistogramMax: 64, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 1.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 64 SdHoareTripleChecker+Valid, 1.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 64 mSDsluCounter, 3329 SdHoareTripleChecker+Invalid, 0.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2644 mSDsCounter, 11 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1164 IncrementalHoareTripleChecker+Invalid, 1175 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 11 mSolverCounterUnsat, 685 mSDtfsCounter, 1164 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1331 GetRequests, 1018 SyntacticMatches, 0 SemanticMatches, 313 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6704 ImplicationChecksByTransitivity, 6.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=373occurred in iteration=14, InterpolantAutomatonStates: 297, 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, 17 MinimizatonAttempts, 28 StatesRemovedByMinimization, 12 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 10.4s InterpolantComputationTime, 3015 NumberOfCodeBlocks, 2945 NumberOfCodeBlocksAsserted, 28 NumberOfCheckSat, 3420 ConstructedInterpolants, 0 QuantifiedInterpolants, 5088 SizeOfPredicates, 0 NumberOfNonLiveVariables, 2285 ConjunctsInSsa, 138 ConjunctsInUnsatCore, 31 InterpolantComputations, 12 PerfectInterpolantSequences, 38970/45895 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 8 specifications checked. All of them hold - InvariantResult [Line: 46]: Location Invariant Derived location invariant: null - InvariantResult [Line: 23]: Location Invariant Derived location invariant: null - InvariantResult [Line: 37]: Location Invariant Derived location invariant: null RESULT: Ultimate proved your program to be correct! [2024-11-17 03:49:47,141 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