./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/nla-digbench-scaling/mannadiv_valuebound1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 023d838f Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/nla-digbench-scaling/mannadiv_valuebound1.c -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 4f0dc25e497896e48962fc4f59a3ea4856b5eb0408b9845e68b04a0b0a132067 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-023d838-m [2024-11-10 19:24:00,806 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-10 19:24:00,870 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-10 19:24:00,890 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-10 19:24:00,890 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-10 19:24:00,919 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-10 19:24:00,920 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-10 19:24:00,920 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-10 19:24:00,920 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-10 19:24:00,921 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-10 19:24:00,921 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-10 19:24:00,921 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-10 19:24:00,922 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-10 19:24:00,922 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-10 19:24:00,922 INFO L153 SettingsManager]: * Use SBE=true [2024-11-10 19:24:00,922 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-10 19:24:00,923 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-10 19:24:00,923 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-10 19:24:00,923 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-10 19:24:00,923 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-10 19:24:00,924 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-10 19:24:00,924 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-10 19:24:00,924 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-10 19:24:00,924 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-10 19:24:00,925 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-10 19:24:00,925 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-10 19:24:00,925 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-10 19:24:00,925 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-10 19:24:00,925 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-10 19:24:00,926 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-10 19:24:00,926 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-10 19:24:00,926 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-10 19:24:00,926 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-10 19:24:00,927 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-10 19:24:00,927 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-10 19:24:00,927 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-10 19:24:00,927 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-10 19:24:00,927 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-10 19:24:00,928 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-10 19:24:00,928 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-10 19:24:00,928 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-10 19:24:00,928 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-10 19:24:00,929 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-10 19:24:00,929 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-10 19:24:00,929 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4f0dc25e497896e48962fc4f59a3ea4856b5eb0408b9845e68b04a0b0a132067 [2024-11-10 19:24:01,114 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-10 19:24:01,129 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-10 19:24:01,131 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-10 19:24:01,132 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-10 19:24:01,132 INFO L274 PluginConnector]: CDTParser initialized [2024-11-10 19:24:01,133 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/nla-digbench-scaling/mannadiv_valuebound1.c [2024-11-10 19:24:02,458 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-10 19:24:02,629 INFO L384 CDTParser]: Found 1 translation units. [2024-11-10 19:24:02,629 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/nla-digbench-scaling/mannadiv_valuebound1.c [2024-11-10 19:24:02,635 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/38e981318/abb6f354dc4140e490a48318643b95d7/FLAG1c94e6f7a [2024-11-10 19:24:02,649 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/38e981318/abb6f354dc4140e490a48318643b95d7 [2024-11-10 19:24:02,651 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-10 19:24:02,652 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-10 19:24:02,653 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-10 19:24:02,653 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-10 19:24:02,657 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-10 19:24:02,658 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 07:24:02" (1/1) ... [2024-11-10 19:24:02,658 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6df17cef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:24:02, skipping insertion in model container [2024-11-10 19:24:02,659 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 07:24:02" (1/1) ... [2024-11-10 19:24:02,673 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-10 19:24:02,807 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 19:24:02,813 INFO L200 MainTranslator]: Completed pre-run [2024-11-10 19:24:02,825 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 19:24:02,838 INFO L204 MainTranslator]: Completed translation [2024-11-10 19:24:02,838 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:24:02 WrapperNode [2024-11-10 19:24:02,838 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-10 19:24:02,839 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-10 19:24:02,839 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-10 19:24:02,840 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-10 19:24:02,844 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:24:02" (1/1) ... [2024-11-10 19:24:02,849 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:24:02" (1/1) ... [2024-11-10 19:24:02,863 INFO L138 Inliner]: procedures = 14, calls = 12, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 68 [2024-11-10 19:24:02,863 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-10 19:24:02,864 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-10 19:24:02,864 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-10 19:24:02,864 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-10 19:24:02,872 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:24:02" (1/1) ... [2024-11-10 19:24:02,872 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:24:02" (1/1) ... [2024-11-10 19:24:02,877 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:24:02" (1/1) ... [2024-11-10 19:24:02,891 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-10 19:24:02,891 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:24:02" (1/1) ... [2024-11-10 19:24:02,892 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:24:02" (1/1) ... [2024-11-10 19:24:02,894 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:24:02" (1/1) ... [2024-11-10 19:24:02,896 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:24:02" (1/1) ... [2024-11-10 19:24:02,896 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:24:02" (1/1) ... [2024-11-10 19:24:02,898 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:24:02" (1/1) ... [2024-11-10 19:24:02,899 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-10 19:24:02,901 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-10 19:24:02,901 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-10 19:24:02,901 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-10 19:24:02,902 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:24:02" (1/1) ... [2024-11-10 19:24:02,906 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-10 19:24:02,914 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 19:24:02,932 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-10 19:24:02,935 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-10 19:24:02,970 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-10 19:24:02,971 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-10 19:24:02,971 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-10 19:24:02,971 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-10 19:24:02,972 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-10 19:24:02,972 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-10 19:24:02,972 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-10 19:24:02,972 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-10 19:24:03,020 INFO L256 CfgBuilder]: Building ICFG [2024-11-10 19:24:03,022 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-10 19:24:03,180 INFO L? ?]: Removed 45 outVars from TransFormulas that were not future-live. [2024-11-10 19:24:03,180 INFO L307 CfgBuilder]: Performing block encoding [2024-11-10 19:24:03,190 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-10 19:24:03,190 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-10 19:24:03,191 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 07:24:03 BoogieIcfgContainer [2024-11-10 19:24:03,191 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-10 19:24:03,192 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-10 19:24:03,193 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-10 19:24:03,195 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-10 19:24:03,196 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 07:24:02" (1/3) ... [2024-11-10 19:24:03,196 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@134025e9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 07:24:03, skipping insertion in model container [2024-11-10 19:24:03,196 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:24:02" (2/3) ... [2024-11-10 19:24:03,196 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@134025e9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 07:24:03, skipping insertion in model container [2024-11-10 19:24:03,197 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 07:24:03" (3/3) ... [2024-11-10 19:24:03,197 INFO L112 eAbstractionObserver]: Analyzing ICFG mannadiv_valuebound1.c [2024-11-10 19:24:03,210 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-10 19:24:03,210 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 20 error locations. [2024-11-10 19:24:03,264 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-10 19:24:03,269 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;@498f5a84, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-10 19:24:03,270 INFO L334 AbstractCegarLoop]: Starting to check reachability of 20 error locations. [2024-11-10 19:24:03,274 INFO L276 IsEmpty]: Start isEmpty. Operand has 69 states, 42 states have (on average 1.619047619047619) internal successors, (68), 62 states have internal predecessors, (68), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-10 19:24:03,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2024-11-10 19:24:03,279 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 19:24:03,280 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 19:24:03,281 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-10 19:24:03,284 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 19:24:03,285 INFO L85 PathProgramCache]: Analyzing trace with hash 1896484208, now seen corresponding path program 1 times [2024-11-10 19:24:03,292 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 19:24:03,292 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [751171853] [2024-11-10 19:24:03,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 19:24:03,293 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 19:24:03,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:24:03,402 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-10 19:24:03,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:24:03,410 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-10 19:24:03,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:24:03,423 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-10 19:24:03,426 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 19:24:03,427 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [751171853] [2024-11-10 19:24:03,427 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [751171853] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 19:24:03,427 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 19:24:03,428 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-10 19:24:03,429 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1918042994] [2024-11-10 19:24:03,433 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 19:24:03,436 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-10 19:24:03,437 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 19:24:03,469 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-10 19:24:03,469 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-10 19:24:03,471 INFO L87 Difference]: Start difference. First operand has 69 states, 42 states have (on average 1.619047619047619) internal successors, (68), 62 states have internal predecessors, (68), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Second operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 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) [2024-11-10 19:24:03,488 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 19:24:03,489 INFO L93 Difference]: Finished difference Result 134 states and 151 transitions. [2024-11-10 19:24:03,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-10 19:24:03,491 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 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 15 [2024-11-10 19:24:03,491 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 19:24:03,496 INFO L225 Difference]: With dead ends: 134 [2024-11-10 19:24:03,496 INFO L226 Difference]: Without dead ends: 62 [2024-11-10 19:24:03,498 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-10 19:24:03,500 INFO L432 NwaCegarLoop]: 71 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 71 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-10 19:24:03,501 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 71 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-10 19:24:03,517 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2024-11-10 19:24:03,530 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 62. [2024-11-10 19:24:03,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62 states, 37 states have (on average 1.5675675675675675) internal successors, (58), 56 states have internal predecessors, (58), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-10 19:24:03,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 64 transitions. [2024-11-10 19:24:03,533 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 64 transitions. Word has length 15 [2024-11-10 19:24:03,534 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 19:24:03,534 INFO L471 AbstractCegarLoop]: Abstraction has 62 states and 64 transitions. [2024-11-10 19:24:03,534 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 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) [2024-11-10 19:24:03,535 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 64 transitions. [2024-11-10 19:24:03,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2024-11-10 19:24:03,535 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 19:24:03,536 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 19:24:03,536 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-10 19:24:03,536 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-10 19:24:03,537 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 19:24:03,537 INFO L85 PathProgramCache]: Analyzing trace with hash -1338531272, now seen corresponding path program 1 times [2024-11-10 19:24:03,537 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 19:24:03,537 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1446232195] [2024-11-10 19:24:03,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 19:24:03,538 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 19:24:03,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-10 19:24:03,560 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [73484995] [2024-11-10 19:24:03,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 19:24:03,561 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 19:24:03,561 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 19:24:03,563 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-10 19:24:03,564 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-10 19:24:03,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:24:03,610 INFO L255 TraceCheckSpWp]: Trace formula consists of 52 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-10 19:24:03,617 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 19:24:03,650 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-10 19:24:03,650 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-10 19:24:03,651 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 19:24:03,651 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1446232195] [2024-11-10 19:24:03,651 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-10 19:24:03,652 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [73484995] [2024-11-10 19:24:03,652 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [73484995] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 19:24:03,652 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 19:24:03,652 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-10 19:24:03,653 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1144869183] [2024-11-10 19:24:03,653 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 19:24:03,655 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-10 19:24:03,655 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 19:24:03,656 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-10 19:24:03,657 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-10 19:24:03,657 INFO L87 Difference]: Start difference. First operand 62 states and 64 transitions. Second operand has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 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) [2024-11-10 19:24:03,795 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 19:24:03,795 INFO L93 Difference]: Finished difference Result 100 states and 110 transitions. [2024-11-10 19:24:03,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-10 19:24:03,796 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 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 16 [2024-11-10 19:24:03,796 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 19:24:03,797 INFO L225 Difference]: With dead ends: 100 [2024-11-10 19:24:03,797 INFO L226 Difference]: Without dead ends: 94 [2024-11-10 19:24:03,798 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-10 19:24:03,799 INFO L432 NwaCegarLoop]: 46 mSDtfsCounter, 29 mSDsluCounter, 38 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 84 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-10 19:24:03,799 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 84 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-10 19:24:03,800 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states. [2024-11-10 19:24:03,807 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 85. [2024-11-10 19:24:03,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 85 states, 59 states have (on average 1.5593220338983051) internal successors, (92), 78 states have internal predecessors, (92), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-10 19:24:03,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 100 transitions. [2024-11-10 19:24:03,809 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 100 transitions. Word has length 16 [2024-11-10 19:24:03,809 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 19:24:03,810 INFO L471 AbstractCegarLoop]: Abstraction has 85 states and 100 transitions. [2024-11-10 19:24:03,810 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 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) [2024-11-10 19:24:03,810 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 100 transitions. [2024-11-10 19:24:03,810 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2024-11-10 19:24:03,811 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 19:24:03,811 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 19:24:03,824 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-10 19:24:04,015 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 19:24:04,016 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-10 19:24:04,017 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 19:24:04,017 INFO L85 PathProgramCache]: Analyzing trace with hash -2133330282, now seen corresponding path program 1 times [2024-11-10 19:24:04,017 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 19:24:04,017 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1836958511] [2024-11-10 19:24:04,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 19:24:04,018 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 19:24:04,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:24:04,154 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-10 19:24:04,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:24:04,158 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-10 19:24:04,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:24:04,161 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-10 19:24:04,161 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 19:24:04,161 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1836958511] [2024-11-10 19:24:04,162 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1836958511] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 19:24:04,162 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 19:24:04,162 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-10 19:24:04,162 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2085546936] [2024-11-10 19:24:04,162 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 19:24:04,162 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-10 19:24:04,163 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 19:24:04,163 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-10 19:24:04,163 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-10 19:24:04,163 INFO L87 Difference]: Start difference. First operand 85 states and 100 transitions. Second operand has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 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) [2024-11-10 19:24:04,335 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 19:24:04,336 INFO L93 Difference]: Finished difference Result 133 states and 165 transitions. [2024-11-10 19:24:04,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-10 19:24:04,336 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 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 18 [2024-11-10 19:24:04,336 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 19:24:04,338 INFO L225 Difference]: With dead ends: 133 [2024-11-10 19:24:04,338 INFO L226 Difference]: Without dead ends: 126 [2024-11-10 19:24:04,338 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-10 19:24:04,339 INFO L432 NwaCegarLoop]: 42 mSDtfsCounter, 24 mSDsluCounter, 61 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 103 SdHoareTripleChecker+Invalid, 89 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-10 19:24:04,339 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 103 Invalid, 89 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-10 19:24:04,340 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126 states. [2024-11-10 19:24:04,348 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126 to 120. [2024-11-10 19:24:04,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 120 states, 92 states have (on average 1.5) internal successors, (138), 111 states have internal predecessors, (138), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-10 19:24:04,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 150 transitions. [2024-11-10 19:24:04,349 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 150 transitions. Word has length 18 [2024-11-10 19:24:04,349 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 19:24:04,350 INFO L471 AbstractCegarLoop]: Abstraction has 120 states and 150 transitions. [2024-11-10 19:24:04,350 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 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) [2024-11-10 19:24:04,350 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 150 transitions. [2024-11-10 19:24:04,350 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2024-11-10 19:24:04,350 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 19:24:04,350 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 19:24:04,351 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-10 19:24:04,351 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-10 19:24:04,351 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 19:24:04,351 INFO L85 PathProgramCache]: Analyzing trace with hash -1708729287, now seen corresponding path program 1 times [2024-11-10 19:24:04,351 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 19:24:04,352 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [198074028] [2024-11-10 19:24:04,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 19:24:04,352 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 19:24:04,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:24:04,415 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-10 19:24:04,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:24:04,419 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-10 19:24:04,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:24:04,431 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-10 19:24:04,431 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 19:24:04,431 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [198074028] [2024-11-10 19:24:04,431 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [198074028] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 19:24:04,431 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 19:24:04,431 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-10 19:24:04,432 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [531933333] [2024-11-10 19:24:04,432 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 19:24:04,432 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-10 19:24:04,432 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 19:24:04,432 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-10 19:24:04,433 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-10 19:24:04,433 INFO L87 Difference]: Start difference. First operand 120 states and 150 transitions. Second operand has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 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) [2024-11-10 19:24:04,745 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 19:24:04,745 INFO L93 Difference]: Finished difference Result 128 states and 153 transitions. [2024-11-10 19:24:04,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-10 19:24:04,746 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 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 19 [2024-11-10 19:24:04,746 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 19:24:04,747 INFO L225 Difference]: With dead ends: 128 [2024-11-10 19:24:04,747 INFO L226 Difference]: Without dead ends: 119 [2024-11-10 19:24:04,748 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-10 19:24:04,748 INFO L432 NwaCegarLoop]: 46 mSDtfsCounter, 23 mSDsluCounter, 61 mSDsCounter, 0 mSdLazyCounter, 77 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 107 SdHoareTripleChecker+Invalid, 81 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 77 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-10 19:24:04,749 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 107 Invalid, 81 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 77 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-10 19:24:04,755 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states. [2024-11-10 19:24:04,766 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 115. [2024-11-10 19:24:04,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 115 states, 87 states have (on average 1.471264367816092) internal successors, (128), 106 states have internal predecessors, (128), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-10 19:24:04,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 140 transitions. [2024-11-10 19:24:04,773 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 140 transitions. Word has length 19 [2024-11-10 19:24:04,773 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 19:24:04,773 INFO L471 AbstractCegarLoop]: Abstraction has 115 states and 140 transitions. [2024-11-10 19:24:04,773 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 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) [2024-11-10 19:24:04,773 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 140 transitions. [2024-11-10 19:24:04,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2024-11-10 19:24:04,774 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 19:24:04,774 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 19:24:04,774 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-10 19:24:04,774 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-10 19:24:04,774 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 19:24:04,774 INFO L85 PathProgramCache]: Analyzing trace with hash -1431000332, now seen corresponding path program 1 times [2024-11-10 19:24:04,774 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 19:24:04,774 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1433550030] [2024-11-10 19:24:04,775 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 19:24:04,775 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 19:24:04,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:24:04,915 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-10 19:24:04,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:24:04,953 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-10 19:24:04,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:24:04,964 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-10 19:24:04,964 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 19:24:04,965 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1433550030] [2024-11-10 19:24:04,965 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1433550030] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 19:24:04,965 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1755806087] [2024-11-10 19:24:04,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 19:24:04,965 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 19:24:04,965 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 19:24:04,967 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-10 19:24:04,968 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-10 19:24:04,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:24:04,998 INFO L255 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-10 19:24:05,000 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 19:24:05,109 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-10 19:24:05,109 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-10 19:24:05,109 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1755806087] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 19:24:05,110 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-10 19:24:05,110 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 8 [2024-11-10 19:24:05,110 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1757841329] [2024-11-10 19:24:05,110 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 19:24:05,110 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-10 19:24:05,110 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 19:24:05,111 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-10 19:24:05,111 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-10 19:24:05,111 INFO L87 Difference]: Start difference. First operand 115 states and 140 transitions. Second operand has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 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) [2024-11-10 19:24:05,202 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 19:24:05,202 INFO L93 Difference]: Finished difference Result 120 states and 146 transitions. [2024-11-10 19:24:05,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-10 19:24:05,202 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 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 20 [2024-11-10 19:24:05,202 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 19:24:05,203 INFO L225 Difference]: With dead ends: 120 [2024-11-10 19:24:05,203 INFO L226 Difference]: Without dead ends: 119 [2024-11-10 19:24:05,203 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2024-11-10 19:24:05,204 INFO L432 NwaCegarLoop]: 43 mSDtfsCounter, 82 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 83 SdHoareTripleChecker+Valid, 68 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-10 19:24:05,204 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [83 Valid, 68 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-10 19:24:05,205 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states. [2024-11-10 19:24:05,210 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 115. [2024-11-10 19:24:05,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 115 states, 87 states have (on average 1.4597701149425288) internal successors, (127), 106 states have internal predecessors, (127), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-10 19:24:05,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 139 transitions. [2024-11-10 19:24:05,211 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 139 transitions. Word has length 20 [2024-11-10 19:24:05,215 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 19:24:05,215 INFO L471 AbstractCegarLoop]: Abstraction has 115 states and 139 transitions. [2024-11-10 19:24:05,215 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 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) [2024-11-10 19:24:05,215 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 139 transitions. [2024-11-10 19:24:05,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2024-11-10 19:24:05,216 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 19:24:05,216 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 19:24:05,230 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-10 19:24:05,420 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 19:24:05,421 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-10 19:24:05,421 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 19:24:05,421 INFO L85 PathProgramCache]: Analyzing trace with hash -1411337321, now seen corresponding path program 1 times [2024-11-10 19:24:05,421 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 19:24:05,421 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [11432115] [2024-11-10 19:24:05,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 19:24:05,421 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 19:24:05,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-10 19:24:05,438 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [281604061] [2024-11-10 19:24:05,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 19:24:05,439 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 19:24:05,439 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 19:24:05,440 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-10 19:24:05,441 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-10 19:24:05,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:24:05,470 INFO L255 TraceCheckSpWp]: Trace formula consists of 57 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-10 19:24:05,471 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 19:24:05,532 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-10 19:24:05,532 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-10 19:24:05,532 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 19:24:05,533 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [11432115] [2024-11-10 19:24:05,533 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-10 19:24:05,533 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [281604061] [2024-11-10 19:24:05,533 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [281604061] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 19:24:05,533 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 19:24:05,533 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-10 19:24:05,533 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1561877940] [2024-11-10 19:24:05,533 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 19:24:05,534 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-10 19:24:05,534 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 19:24:05,534 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-10 19:24:05,534 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-10 19:24:05,535 INFO L87 Difference]: Start difference. First operand 115 states and 139 transitions. Second operand has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 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) [2024-11-10 19:24:05,654 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 19:24:05,655 INFO L93 Difference]: Finished difference Result 117 states and 140 transitions. [2024-11-10 19:24:05,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-10 19:24:05,655 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 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 21 [2024-11-10 19:24:05,655 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 19:24:05,656 INFO L225 Difference]: With dead ends: 117 [2024-11-10 19:24:05,656 INFO L226 Difference]: Without dead ends: 116 [2024-11-10 19:24:05,656 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-10 19:24:05,657 INFO L432 NwaCegarLoop]: 49 mSDtfsCounter, 73 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 74 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 63 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-10 19:24:05,657 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [74 Valid, 74 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-10 19:24:05,658 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states. [2024-11-10 19:24:05,668 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 115. [2024-11-10 19:24:05,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 115 states, 87 states have (on average 1.4482758620689655) internal successors, (126), 106 states have internal predecessors, (126), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-10 19:24:05,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 138 transitions. [2024-11-10 19:24:05,669 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 138 transitions. Word has length 21 [2024-11-10 19:24:05,669 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 19:24:05,669 INFO L471 AbstractCegarLoop]: Abstraction has 115 states and 138 transitions. [2024-11-10 19:24:05,669 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 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) [2024-11-10 19:24:05,670 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 138 transitions. [2024-11-10 19:24:05,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2024-11-10 19:24:05,670 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 19:24:05,670 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 19:24:05,683 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-10 19:24:05,874 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 19:24:05,875 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-10 19:24:05,875 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 19:24:05,876 INFO L85 PathProgramCache]: Analyzing trace with hash -38340464, now seen corresponding path program 1 times [2024-11-10 19:24:05,876 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 19:24:05,876 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1364058648] [2024-11-10 19:24:05,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 19:24:05,876 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 19:24:05,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:24:05,977 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-10 19:24:05,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:24:06,005 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-10 19:24:06,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:24:06,009 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-10 19:24:06,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:24:06,015 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-10 19:24:06,018 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 19:24:06,018 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1364058648] [2024-11-10 19:24:06,018 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1364058648] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 19:24:06,018 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [510982720] [2024-11-10 19:24:06,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 19:24:06,018 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 19:24:06,018 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 19:24:06,023 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-10 19:24:06,024 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-10 19:24:06,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:24:06,063 INFO L255 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-10 19:24:06,064 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 19:24:06,101 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-10 19:24:06,101 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-10 19:24:06,178 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-10 19:24:06,179 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [510982720] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-10 19:24:06,179 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-10 19:24:06,179 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 8 [2024-11-10 19:24:06,179 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1810698569] [2024-11-10 19:24:06,179 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-10 19:24:06,179 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-10 19:24:06,179 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 19:24:06,181 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-10 19:24:06,181 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-11-10 19:24:06,181 INFO L87 Difference]: Start difference. First operand 115 states and 138 transitions. Second operand has 9 states, 8 states have (on average 5.875) internal successors, (47), 7 states have internal predecessors, (47), 5 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (6), 4 states have call predecessors, (6), 5 states have call successors, (6) [2024-11-10 19:24:06,278 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 19:24:06,279 INFO L93 Difference]: Finished difference Result 177 states and 214 transitions. [2024-11-10 19:24:06,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-10 19:24:06,279 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 5.875) internal successors, (47), 7 states have internal predecessors, (47), 5 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (6), 4 states have call predecessors, (6), 5 states have call successors, (6) Word has length 34 [2024-11-10 19:24:06,279 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 19:24:06,280 INFO L225 Difference]: With dead ends: 177 [2024-11-10 19:24:06,280 INFO L226 Difference]: Without dead ends: 175 [2024-11-10 19:24:06,281 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 69 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2024-11-10 19:24:06,282 INFO L432 NwaCegarLoop]: 46 mSDtfsCounter, 137 mSDsluCounter, 188 mSDsCounter, 0 mSdLazyCounter, 99 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 138 SdHoareTripleChecker+Valid, 234 SdHoareTripleChecker+Invalid, 107 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 99 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-10 19:24:06,282 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [138 Valid, 234 Invalid, 107 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 99 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-10 19:24:06,282 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 175 states. [2024-11-10 19:24:06,296 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 175 to 165. [2024-11-10 19:24:06,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 165 states, 135 states have (on average 1.4296296296296296) internal successors, (193), 154 states have internal predecessors, (193), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-10 19:24:06,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 165 states to 165 states and 209 transitions. [2024-11-10 19:24:06,301 INFO L78 Accepts]: Start accepts. Automaton has 165 states and 209 transitions. Word has length 34 [2024-11-10 19:24:06,301 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 19:24:06,301 INFO L471 AbstractCegarLoop]: Abstraction has 165 states and 209 transitions. [2024-11-10 19:24:06,301 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 5.875) internal successors, (47), 7 states have internal predecessors, (47), 5 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (6), 4 states have call predecessors, (6), 5 states have call successors, (6) [2024-11-10 19:24:06,301 INFO L276 IsEmpty]: Start isEmpty. Operand 165 states and 209 transitions. [2024-11-10 19:24:06,302 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2024-11-10 19:24:06,302 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 19:24:06,302 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 19:24:06,319 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-10 19:24:06,502 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 19:24:06,503 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-10 19:24:06,503 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 19:24:06,503 INFO L85 PathProgramCache]: Analyzing trace with hash -1188554401, now seen corresponding path program 1 times [2024-11-10 19:24:06,503 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 19:24:06,503 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1868266486] [2024-11-10 19:24:06,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 19:24:06,505 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 19:24:06,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:24:06,563 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-10 19:24:06,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:24:06,570 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-10 19:24:06,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:24:06,577 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-10 19:24:06,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:24:06,581 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-10 19:24:06,584 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 19:24:06,584 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1868266486] [2024-11-10 19:24:06,584 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1868266486] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 19:24:06,585 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 19:24:06,585 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-10 19:24:06,585 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [958461003] [2024-11-10 19:24:06,585 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 19:24:06,585 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-10 19:24:06,585 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 19:24:06,586 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-10 19:24:06,589 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-10 19:24:06,589 INFO L87 Difference]: Start difference. First operand 165 states and 209 transitions. Second operand has 4 states, 3 states have (on average 8.666666666666666) internal successors, (26), 4 states have internal predecessors, (26), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-10 19:24:06,652 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 19:24:06,652 INFO L93 Difference]: Finished difference Result 165 states and 209 transitions. [2024-11-10 19:24:06,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-10 19:24:06,653 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 8.666666666666666) internal successors, (26), 4 states have internal predecessors, (26), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 35 [2024-11-10 19:24:06,653 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 19:24:06,654 INFO L225 Difference]: With dead ends: 165 [2024-11-10 19:24:06,654 INFO L226 Difference]: Without dead ends: 163 [2024-11-10 19:24:06,654 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-10 19:24:06,654 INFO L432 NwaCegarLoop]: 47 mSDtfsCounter, 65 mSDsluCounter, 29 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 76 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-10 19:24:06,655 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [65 Valid, 76 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-10 19:24:06,655 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 163 states. [2024-11-10 19:24:06,667 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 163 to 163. [2024-11-10 19:24:06,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 163 states, 135 states have (on average 1.3925925925925926) internal successors, (188), 152 states have internal predecessors, (188), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-10 19:24:06,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 163 states to 163 states and 204 transitions. [2024-11-10 19:24:06,668 INFO L78 Accepts]: Start accepts. Automaton has 163 states and 204 transitions. Word has length 35 [2024-11-10 19:24:06,668 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 19:24:06,668 INFO L471 AbstractCegarLoop]: Abstraction has 163 states and 204 transitions. [2024-11-10 19:24:06,668 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 8.666666666666666) internal successors, (26), 4 states have internal predecessors, (26), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-10 19:24:06,669 INFO L276 IsEmpty]: Start isEmpty. Operand 163 states and 204 transitions. [2024-11-10 19:24:06,672 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2024-11-10 19:24:06,673 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 19:24:06,673 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 19:24:06,673 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-10 19:24:06,673 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-10 19:24:06,673 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 19:24:06,673 INFO L85 PathProgramCache]: Analyzing trace with hash 1252426759, now seen corresponding path program 1 times [2024-11-10 19:24:06,673 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 19:24:06,673 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1741647375] [2024-11-10 19:24:06,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 19:24:06,674 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 19:24:06,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-10 19:24:06,685 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2081644993] [2024-11-10 19:24:06,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 19:24:06,686 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 19:24:06,686 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 19:24:06,690 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-10 19:24:06,694 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-10 19:24:06,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:24:06,727 INFO L255 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-10 19:24:06,728 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 19:24:06,851 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-10 19:24:06,851 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-10 19:24:07,000 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 19:24:07,000 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1741647375] [2024-11-10 19:24:07,000 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-10 19:24:07,000 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2081644993] [2024-11-10 19:24:07,001 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2081644993] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 19:24:07,001 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-10 19:24:07,001 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2024-11-10 19:24:07,001 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [130878859] [2024-11-10 19:24:07,001 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-10 19:24:07,001 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-10 19:24:07,001 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 19:24:07,002 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-10 19:24:07,002 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2024-11-10 19:24:07,002 INFO L87 Difference]: Start difference. First operand 163 states and 204 transitions. Second operand has 6 states, 5 states have (on average 6.0) internal successors, (30), 6 states have internal predecessors, (30), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-10 19:24:07,093 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 19:24:07,093 INFO L93 Difference]: Finished difference Result 172 states and 209 transitions. [2024-11-10 19:24:07,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-10 19:24:07,093 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 6.0) internal successors, (30), 6 states have internal predecessors, (30), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 39 [2024-11-10 19:24:07,094 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 19:24:07,094 INFO L225 Difference]: With dead ends: 172 [2024-11-10 19:24:07,094 INFO L226 Difference]: Without dead ends: 165 [2024-11-10 19:24:07,095 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2024-11-10 19:24:07,095 INFO L432 NwaCegarLoop]: 36 mSDtfsCounter, 84 mSDsluCounter, 19 mSDsCounter, 0 mSdLazyCounter, 103 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 84 SdHoareTripleChecker+Valid, 55 SdHoareTripleChecker+Invalid, 113 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 103 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-10 19:24:07,095 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [84 Valid, 55 Invalid, 113 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 103 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-10 19:24:07,096 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 165 states. [2024-11-10 19:24:07,101 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 165 to 159. [2024-11-10 19:24:07,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 159 states, 136 states have (on average 1.2941176470588236) internal successors, (176), 148 states have internal predecessors, (176), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-10 19:24:07,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 159 states to 159 states and 192 transitions. [2024-11-10 19:24:07,103 INFO L78 Accepts]: Start accepts. Automaton has 159 states and 192 transitions. Word has length 39 [2024-11-10 19:24:07,103 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 19:24:07,103 INFO L471 AbstractCegarLoop]: Abstraction has 159 states and 192 transitions. [2024-11-10 19:24:07,103 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 6.0) internal successors, (30), 6 states have internal predecessors, (30), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-10 19:24:07,103 INFO L276 IsEmpty]: Start isEmpty. Operand 159 states and 192 transitions. [2024-11-10 19:24:07,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2024-11-10 19:24:07,104 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 19:24:07,104 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 19:24:07,117 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-10 19:24:07,307 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 19:24:07,308 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-10 19:24:07,308 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 19:24:07,308 INFO L85 PathProgramCache]: Analyzing trace with hash 170523884, now seen corresponding path program 1 times [2024-11-10 19:24:07,308 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 19:24:07,308 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [270814459] [2024-11-10 19:24:07,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 19:24:07,308 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 19:24:07,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-10 19:24:07,318 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2095146748] [2024-11-10 19:24:07,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 19:24:07,318 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 19:24:07,318 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 19:24:07,320 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-10 19:24:07,325 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-10 19:24:07,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:24:07,355 INFO L255 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-10 19:24:07,356 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 19:24:07,474 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-10 19:24:07,474 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-10 19:24:07,799 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 19:24:07,799 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [270814459] [2024-11-10 19:24:07,799 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-10 19:24:07,799 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2095146748] [2024-11-10 19:24:07,799 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2095146748] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 19:24:07,799 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-10 19:24:07,799 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2024-11-10 19:24:07,799 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [591533952] [2024-11-10 19:24:07,799 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-10 19:24:07,799 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-10 19:24:07,799 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 19:24:07,800 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-10 19:24:07,800 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2024-11-10 19:24:07,800 INFO L87 Difference]: Start difference. First operand 159 states and 192 transitions. Second operand has 6 states, 5 states have (on average 6.2) internal successors, (31), 6 states have internal predecessors, (31), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-10 19:24:07,938 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 19:24:07,938 INFO L93 Difference]: Finished difference Result 215 states and 258 transitions. [2024-11-10 19:24:07,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-10 19:24:07,938 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 6.2) internal successors, (31), 6 states have internal predecessors, (31), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 40 [2024-11-10 19:24:07,939 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 19:24:07,939 INFO L225 Difference]: With dead ends: 215 [2024-11-10 19:24:07,939 INFO L226 Difference]: Without dead ends: 212 [2024-11-10 19:24:07,940 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2024-11-10 19:24:07,940 INFO L432 NwaCegarLoop]: 47 mSDtfsCounter, 85 mSDsluCounter, 68 mSDsCounter, 0 mSdLazyCounter, 139 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 87 SdHoareTripleChecker+Valid, 115 SdHoareTripleChecker+Invalid, 142 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 139 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-10 19:24:07,940 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [87 Valid, 115 Invalid, 142 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 139 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-10 19:24:07,941 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 212 states. [2024-11-10 19:24:07,946 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 212 to 203. [2024-11-10 19:24:07,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 203 states, 178 states have (on average 1.2808988764044944) internal successors, (228), 190 states have internal predecessors, (228), 10 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-11-10 19:24:07,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 203 states to 203 states and 248 transitions. [2024-11-10 19:24:07,949 INFO L78 Accepts]: Start accepts. Automaton has 203 states and 248 transitions. Word has length 40 [2024-11-10 19:24:07,949 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 19:24:07,949 INFO L471 AbstractCegarLoop]: Abstraction has 203 states and 248 transitions. [2024-11-10 19:24:07,949 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 6.2) internal successors, (31), 6 states have internal predecessors, (31), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-10 19:24:07,949 INFO L276 IsEmpty]: Start isEmpty. Operand 203 states and 248 transitions. [2024-11-10 19:24:07,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2024-11-10 19:24:07,950 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 19:24:07,950 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 19:24:07,962 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-10 19:24:08,151 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 19:24:08,151 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-10 19:24:08,151 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 19:24:08,151 INFO L85 PathProgramCache]: Analyzing trace with hash -1709471164, now seen corresponding path program 1 times [2024-11-10 19:24:08,151 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 19:24:08,151 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [546558163] [2024-11-10 19:24:08,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 19:24:08,152 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 19:24:08,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:24:08,191 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-10 19:24:08,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:24:08,193 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-10 19:24:08,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:24:08,194 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-10 19:24:08,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:24:08,197 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-10 19:24:08,197 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 19:24:08,197 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [546558163] [2024-11-10 19:24:08,197 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [546558163] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 19:24:08,197 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1296193484] [2024-11-10 19:24:08,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 19:24:08,197 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 19:24:08,197 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 19:24:08,199 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-10 19:24:08,199 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-10 19:24:08,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:24:08,229 INFO L255 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-10 19:24:08,230 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 19:24:08,307 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-10 19:24:08,307 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-10 19:24:08,307 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1296193484] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 19:24:08,307 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-10 19:24:08,307 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 7 [2024-11-10 19:24:08,308 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1031788970] [2024-11-10 19:24:08,308 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 19:24:08,308 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-10 19:24:08,308 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 19:24:08,308 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-10 19:24:08,308 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2024-11-10 19:24:08,308 INFO L87 Difference]: Start difference. First operand 203 states and 248 transitions. Second operand has 5 states, 4 states have (on average 8.0) internal successors, (32), 5 states have internal predecessors, (32), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-10 19:24:08,439 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 19:24:08,439 INFO L93 Difference]: Finished difference Result 205 states and 250 transitions. [2024-11-10 19:24:08,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-10 19:24:08,440 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 8.0) internal successors, (32), 5 states have internal predecessors, (32), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 41 [2024-11-10 19:24:08,440 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 19:24:08,441 INFO L225 Difference]: With dead ends: 205 [2024-11-10 19:24:08,441 INFO L226 Difference]: Without dead ends: 203 [2024-11-10 19:24:08,442 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2024-11-10 19:24:08,442 INFO L432 NwaCegarLoop]: 36 mSDtfsCounter, 28 mSDsluCounter, 38 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 74 SdHoareTripleChecker+Invalid, 85 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 82 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-10 19:24:08,442 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 74 Invalid, 85 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-10 19:24:08,442 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 203 states. [2024-11-10 19:24:08,448 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 203 to 198. [2024-11-10 19:24:08,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 198 states, 175 states have (on average 1.2685714285714285) internal successors, (222), 185 states have internal predecessors, (222), 10 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-11-10 19:24:08,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198 states to 198 states and 242 transitions. [2024-11-10 19:24:08,449 INFO L78 Accepts]: Start accepts. Automaton has 198 states and 242 transitions. Word has length 41 [2024-11-10 19:24:08,449 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 19:24:08,449 INFO L471 AbstractCegarLoop]: Abstraction has 198 states and 242 transitions. [2024-11-10 19:24:08,449 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 8.0) internal successors, (32), 5 states have internal predecessors, (32), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-10 19:24:08,449 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states and 242 transitions. [2024-11-10 19:24:08,449 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2024-11-10 19:24:08,449 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 19:24:08,450 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 19:24:08,463 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2024-11-10 19:24:08,653 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 [2024-11-10 19:24:08,653 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-10 19:24:08,654 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 19:24:08,654 INFO L85 PathProgramCache]: Analyzing trace with hash -1453998517, now seen corresponding path program 1 times [2024-11-10 19:24:08,654 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 19:24:08,654 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1682766478] [2024-11-10 19:24:08,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 19:24:08,654 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 19:24:08,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:24:08,714 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-10 19:24:08,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:24:08,715 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-10 19:24:08,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:24:08,716 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-10 19:24:08,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:24:08,736 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-10 19:24:08,736 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 19:24:08,736 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1682766478] [2024-11-10 19:24:08,737 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1682766478] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 19:24:08,737 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1334108926] [2024-11-10 19:24:08,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 19:24:08,737 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 19:24:08,737 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 19:24:08,738 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-10 19:24:08,739 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-10 19:24:08,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:24:08,767 INFO L255 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-10 19:24:08,768 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 19:24:08,836 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-10 19:24:08,836 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-10 19:24:08,903 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1334108926] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 19:24:08,903 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-10 19:24:08,904 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 3] total 8 [2024-11-10 19:24:08,904 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [267349017] [2024-11-10 19:24:08,904 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-10 19:24:08,904 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-10 19:24:08,904 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 19:24:08,905 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-10 19:24:08,905 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2024-11-10 19:24:08,905 INFO L87 Difference]: Start difference. First operand 198 states and 242 transitions. Second operand has 9 states, 8 states have (on average 7.625) internal successors, (61), 9 states have internal predecessors, (61), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-10 19:24:09,119 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 19:24:09,119 INFO L93 Difference]: Finished difference Result 206 states and 246 transitions. [2024-11-10 19:24:09,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-10 19:24:09,120 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 7.625) internal successors, (61), 9 states have internal predecessors, (61), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 42 [2024-11-10 19:24:09,120 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 19:24:09,121 INFO L225 Difference]: With dead ends: 206 [2024-11-10 19:24:09,121 INFO L226 Difference]: Without dead ends: 198 [2024-11-10 19:24:09,121 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=110, Unknown=0, NotChecked=0, Total=156 [2024-11-10 19:24:09,121 INFO L432 NwaCegarLoop]: 30 mSDtfsCounter, 28 mSDsluCounter, 147 mSDsCounter, 0 mSdLazyCounter, 254 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 177 SdHoareTripleChecker+Invalid, 258 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 254 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-10 19:24:09,121 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 177 Invalid, 258 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 254 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-10 19:24:09,122 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 198 states. [2024-11-10 19:24:09,126 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 198 to 198. [2024-11-10 19:24:09,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 198 states, 175 states have (on average 1.2457142857142858) internal successors, (218), 185 states have internal predecessors, (218), 10 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-11-10 19:24:09,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198 states to 198 states and 238 transitions. [2024-11-10 19:24:09,127 INFO L78 Accepts]: Start accepts. Automaton has 198 states and 238 transitions. Word has length 42 [2024-11-10 19:24:09,128 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 19:24:09,128 INFO L471 AbstractCegarLoop]: Abstraction has 198 states and 238 transitions. [2024-11-10 19:24:09,128 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 7.625) internal successors, (61), 9 states have internal predecessors, (61), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-10 19:24:09,128 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states and 238 transitions. [2024-11-10 19:24:09,128 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2024-11-10 19:24:09,128 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 19:24:09,128 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 19:24:09,148 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-11-10 19:24:09,329 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 [2024-11-10 19:24:09,329 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-10 19:24:09,329 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 19:24:09,329 INFO L85 PathProgramCache]: Analyzing trace with hash -869266109, now seen corresponding path program 1 times [2024-11-10 19:24:09,329 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 19:24:09,330 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [843148826] [2024-11-10 19:24:09,330 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 19:24:09,331 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 19:24:09,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:24:09,416 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-10 19:24:09,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:24:09,432 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-10 19:24:09,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:24:09,434 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-10 19:24:09,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:24:09,436 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 3 proven. 7 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-10 19:24:09,436 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 19:24:09,436 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [843148826] [2024-11-10 19:24:09,436 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [843148826] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 19:24:09,436 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2145750018] [2024-11-10 19:24:09,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 19:24:09,436 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 19:24:09,437 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 19:24:09,437 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-10 19:24:09,442 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-10 19:24:09,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:24:09,484 INFO L255 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-10 19:24:09,485 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 19:24:09,561 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 7 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-10 19:24:09,562 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-10 19:24:09,812 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-10 19:24:09,812 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2145750018] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-10 19:24:09,812 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-10 19:24:09,812 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 16 [2024-11-10 19:24:09,812 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1152513697] [2024-11-10 19:24:09,812 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-10 19:24:09,812 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-11-10 19:24:09,812 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 19:24:09,813 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-11-10 19:24:09,813 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=215, Unknown=0, NotChecked=0, Total=272 [2024-11-10 19:24:09,813 INFO L87 Difference]: Start difference. First operand 198 states and 238 transitions. Second operand has 17 states, 16 states have (on average 3.8125) internal successors, (61), 16 states have internal predecessors, (61), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-10 19:24:10,159 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 19:24:10,159 INFO L93 Difference]: Finished difference Result 201 states and 240 transitions. [2024-11-10 19:24:10,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-10 19:24:10,159 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 3.8125) internal successors, (61), 16 states have internal predecessors, (61), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) Word has length 43 [2024-11-10 19:24:10,159 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 19:24:10,160 INFO L225 Difference]: With dead ends: 201 [2024-11-10 19:24:10,160 INFO L226 Difference]: Without dead ends: 198 [2024-11-10 19:24:10,161 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 78 SyntacticMatches, 5 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 123 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=159, Invalid=491, Unknown=0, NotChecked=0, Total=650 [2024-11-10 19:24:10,161 INFO L432 NwaCegarLoop]: 22 mSDtfsCounter, 190 mSDsluCounter, 138 mSDsCounter, 0 mSdLazyCounter, 225 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 190 SdHoareTripleChecker+Valid, 160 SdHoareTripleChecker+Invalid, 260 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 225 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-10 19:24:10,161 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [190 Valid, 160 Invalid, 260 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 225 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-10 19:24:10,162 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 198 states. [2024-11-10 19:24:10,166 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 198 to 162. [2024-11-10 19:24:10,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 162 states, 143 states have (on average 1.2027972027972027) internal successors, (172), 150 states have internal predecessors, (172), 9 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-10 19:24:10,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 162 states and 190 transitions. [2024-11-10 19:24:10,167 INFO L78 Accepts]: Start accepts. Automaton has 162 states and 190 transitions. Word has length 43 [2024-11-10 19:24:10,168 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 19:24:10,168 INFO L471 AbstractCegarLoop]: Abstraction has 162 states and 190 transitions. [2024-11-10 19:24:10,168 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 3.8125) internal successors, (61), 16 states have internal predecessors, (61), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-10 19:24:10,168 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 190 transitions. [2024-11-10 19:24:10,168 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2024-11-10 19:24:10,168 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 19:24:10,168 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 19:24:10,181 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2024-11-10 19:24:10,372 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,SelfDestructingSolverStorable12 [2024-11-10 19:24:10,372 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-10 19:24:10,373 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 19:24:10,373 INFO L85 PathProgramCache]: Analyzing trace with hash -1177445592, now seen corresponding path program 1 times [2024-11-10 19:24:10,377 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 19:24:10,377 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1559523395] [2024-11-10 19:24:10,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 19:24:10,377 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 19:24:10,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-10 19:24:10,386 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1395751718] [2024-11-10 19:24:10,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 19:24:10,387 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 19:24:10,387 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 19:24:10,388 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-10 19:24:10,389 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-10 19:24:10,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:24:10,419 INFO L255 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-10 19:24:10,420 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 19:24:10,591 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-10 19:24:10,591 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-10 19:24:10,778 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-10 19:24:10,778 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 19:24:10,779 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1559523395] [2024-11-10 19:24:10,779 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-10 19:24:10,779 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1395751718] [2024-11-10 19:24:10,779 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1395751718] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-10 19:24:10,779 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-10 19:24:10,779 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2024-11-10 19:24:10,779 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [350321378] [2024-11-10 19:24:10,779 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-10 19:24:10,780 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-10 19:24:10,780 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 19:24:10,780 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-10 19:24:10,780 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2024-11-10 19:24:10,780 INFO L87 Difference]: Start difference. First operand 162 states and 190 transitions. Second operand has 11 states, 10 states have (on average 6.2) internal successors, (62), 11 states have internal predecessors, (62), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-10 19:24:11,098 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 19:24:11,099 INFO L93 Difference]: Finished difference Result 261 states and 305 transitions. [2024-11-10 19:24:11,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-10 19:24:11,099 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 6.2) internal successors, (62), 11 states have internal predecessors, (62), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 44 [2024-11-10 19:24:11,100 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 19:24:11,100 INFO L225 Difference]: With dead ends: 261 [2024-11-10 19:24:11,100 INFO L226 Difference]: Without dead ends: 180 [2024-11-10 19:24:11,101 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 76 SyntacticMatches, 1 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=78, Invalid=228, Unknown=0, NotChecked=0, Total=306 [2024-11-10 19:24:11,101 INFO L432 NwaCegarLoop]: 25 mSDtfsCounter, 98 mSDsluCounter, 101 mSDsCounter, 0 mSdLazyCounter, 246 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 98 SdHoareTripleChecker+Valid, 126 SdHoareTripleChecker+Invalid, 257 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 246 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-10 19:24:11,102 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [98 Valid, 126 Invalid, 257 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 246 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-10 19:24:11,102 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 180 states. [2024-11-10 19:24:11,107 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 180 to 180. [2024-11-10 19:24:11,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 180 states, 161 states have (on average 1.1428571428571428) internal successors, (184), 167 states have internal predecessors, (184), 10 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-11-10 19:24:11,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 180 states to 180 states and 204 transitions. [2024-11-10 19:24:11,108 INFO L78 Accepts]: Start accepts. Automaton has 180 states and 204 transitions. Word has length 44 [2024-11-10 19:24:11,108 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 19:24:11,108 INFO L471 AbstractCegarLoop]: Abstraction has 180 states and 204 transitions. [2024-11-10 19:24:11,108 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 6.2) internal successors, (62), 11 states have internal predecessors, (62), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-10 19:24:11,108 INFO L276 IsEmpty]: Start isEmpty. Operand 180 states and 204 transitions. [2024-11-10 19:24:11,109 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2024-11-10 19:24:11,109 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 19:24:11,109 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 19:24:11,124 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2024-11-10 19:24:11,313 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2024-11-10 19:24:11,313 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-10 19:24:11,314 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 19:24:11,314 INFO L85 PathProgramCache]: Analyzing trace with hash 290726331, now seen corresponding path program 2 times [2024-11-10 19:24:11,314 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 19:24:11,314 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1657165730] [2024-11-10 19:24:11,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 19:24:11,314 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 19:24:11,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-10 19:24:11,323 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [49431846] [2024-11-10 19:24:11,323 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-10 19:24:11,323 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 19:24:11,323 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 19:24:11,328 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-10 19:24:11,333 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-11-10 19:24:11,369 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-10 19:24:11,369 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-10 19:24:11,370 INFO L255 TraceCheckSpWp]: Trace formula consists of 117 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-10 19:24:11,371 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 19:24:11,484 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-10 19:24:11,485 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-10 19:24:11,728 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-10 19:24:11,729 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 19:24:11,729 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1657165730] [2024-11-10 19:24:11,729 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-10 19:24:11,729 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [49431846] [2024-11-10 19:24:11,729 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [49431846] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-10 19:24:11,729 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-10 19:24:11,729 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 9 [2024-11-10 19:24:11,729 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1649192182] [2024-11-10 19:24:11,729 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-10 19:24:11,730 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-10 19:24:11,730 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 19:24:11,730 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-10 19:24:11,730 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2024-11-10 19:24:11,730 INFO L87 Difference]: Start difference. First operand 180 states and 204 transitions. Second operand has 10 states, 9 states have (on average 10.0) internal successors, (90), 10 states have internal predecessors, (90), 5 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) [2024-11-10 19:24:12,299 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 19:24:12,299 INFO L93 Difference]: Finished difference Result 377 states and 438 transitions. [2024-11-10 19:24:12,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-10 19:24:12,300 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 10.0) internal successors, (90), 10 states have internal predecessors, (90), 5 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) Word has length 63 [2024-11-10 19:24:12,300 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 19:24:12,301 INFO L225 Difference]: With dead ends: 377 [2024-11-10 19:24:12,301 INFO L226 Difference]: Without dead ends: 374 [2024-11-10 19:24:12,301 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 116 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=80, Invalid=160, Unknown=0, NotChecked=0, Total=240 [2024-11-10 19:24:12,302 INFO L432 NwaCegarLoop]: 47 mSDtfsCounter, 162 mSDsluCounter, 232 mSDsCounter, 0 mSdLazyCounter, 363 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 164 SdHoareTripleChecker+Valid, 279 SdHoareTripleChecker+Invalid, 377 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 363 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-10 19:24:12,302 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [164 Valid, 279 Invalid, 377 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 363 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-10 19:24:12,302 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 374 states. [2024-11-10 19:24:12,312 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 374 to 349. [2024-11-10 19:24:12,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 349 states, 323 states have (on average 1.1455108359133126) internal successors, (370), 328 states have internal predecessors, (370), 18 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2024-11-10 19:24:12,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 349 states to 349 states and 406 transitions. [2024-11-10 19:24:12,314 INFO L78 Accepts]: Start accepts. Automaton has 349 states and 406 transitions. Word has length 63 [2024-11-10 19:24:12,314 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 19:24:12,315 INFO L471 AbstractCegarLoop]: Abstraction has 349 states and 406 transitions. [2024-11-10 19:24:12,315 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 10.0) internal successors, (90), 10 states have internal predecessors, (90), 5 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) [2024-11-10 19:24:12,315 INFO L276 IsEmpty]: Start isEmpty. Operand 349 states and 406 transitions. [2024-11-10 19:24:12,315 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-11-10 19:24:12,315 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 19:24:12,315 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 19:24:12,329 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2024-11-10 19:24:12,516 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2024-11-10 19:24:12,516 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-10 19:24:12,517 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 19:24:12,517 INFO L85 PathProgramCache]: Analyzing trace with hash 2124720121, now seen corresponding path program 2 times [2024-11-10 19:24:12,517 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 19:24:12,517 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [599137262] [2024-11-10 19:24:12,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 19:24:12,517 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 19:24:12,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:24:12,577 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-10 19:24:12,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:24:12,579 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-10 19:24:12,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:24:12,580 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-10 19:24:12,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:24:12,596 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-10 19:24:12,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:24:12,598 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 34 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-10 19:24:12,599 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 19:24:12,599 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [599137262] [2024-11-10 19:24:12,599 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [599137262] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 19:24:12,599 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [847645766] [2024-11-10 19:24:12,599 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-10 19:24:12,599 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 19:24:12,599 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 19:24:12,601 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-10 19:24:12,609 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-11-10 19:24:12,639 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-10 19:24:12,640 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-10 19:24:12,640 INFO L255 TraceCheckSpWp]: Trace formula consists of 113 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-10 19:24:12,641 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 19:24:12,747 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 31 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-10 19:24:12,747 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-10 19:24:12,816 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [847645766] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 19:24:12,816 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-10 19:24:12,816 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 4] total 10 [2024-11-10 19:24:12,816 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2096385716] [2024-11-10 19:24:12,816 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-10 19:24:12,817 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-10 19:24:12,817 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 19:24:12,817 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-10 19:24:12,817 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=114, Unknown=0, NotChecked=0, Total=156 [2024-11-10 19:24:12,817 INFO L87 Difference]: Start difference. First operand 349 states and 406 transitions. Second operand has 11 states, 10 states have (on average 9.7) internal successors, (97), 11 states have internal predecessors, (97), 5 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) [2024-11-10 19:24:12,970 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 19:24:12,970 INFO L93 Difference]: Finished difference Result 377 states and 436 transitions. [2024-11-10 19:24:12,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-10 19:24:12,971 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 9.7) internal successors, (97), 11 states have internal predecessors, (97), 5 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) Word has length 65 [2024-11-10 19:24:12,971 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 19:24:12,972 INFO L225 Difference]: With dead ends: 377 [2024-11-10 19:24:12,972 INFO L226 Difference]: Without dead ends: 369 [2024-11-10 19:24:12,972 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 84 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=147, Unknown=0, NotChecked=0, Total=210 [2024-11-10 19:24:12,973 INFO L432 NwaCegarLoop]: 25 mSDtfsCounter, 28 mSDsluCounter, 139 mSDsCounter, 0 mSdLazyCounter, 242 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 164 SdHoareTripleChecker+Invalid, 246 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 242 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-10 19:24:12,973 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 164 Invalid, 246 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 242 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-10 19:24:12,973 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 369 states. [2024-11-10 19:24:12,983 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 369 to 368. [2024-11-10 19:24:12,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 368 states, 341 states have (on average 1.1407624633431086) internal successors, (389), 346 states have internal predecessors, (389), 19 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2024-11-10 19:24:12,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 368 states to 368 states and 427 transitions. [2024-11-10 19:24:12,985 INFO L78 Accepts]: Start accepts. Automaton has 368 states and 427 transitions. Word has length 65 [2024-11-10 19:24:12,985 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 19:24:12,985 INFO L471 AbstractCegarLoop]: Abstraction has 368 states and 427 transitions. [2024-11-10 19:24:12,985 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 9.7) internal successors, (97), 11 states have internal predecessors, (97), 5 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) [2024-11-10 19:24:12,985 INFO L276 IsEmpty]: Start isEmpty. Operand 368 states and 427 transitions. [2024-11-10 19:24:12,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2024-11-10 19:24:12,986 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 19:24:12,986 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 19:24:13,000 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2024-11-10 19:24:13,190 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2024-11-10 19:24:13,191 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-10 19:24:13,191 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 19:24:13,191 INFO L85 PathProgramCache]: Analyzing trace with hash 420117867, now seen corresponding path program 1 times [2024-11-10 19:24:13,191 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 19:24:13,191 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1403622255] [2024-11-10 19:24:13,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 19:24:13,192 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 19:24:13,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:24:13,261 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-10 19:24:13,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:24:13,263 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-10 19:24:13,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:24:13,264 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-10 19:24:13,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:24:13,266 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-10 19:24:13,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:24:13,268 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-11-10 19:24:13,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:24:13,270 INFO L134 CoverageAnalysis]: Checked inductivity of 79 backedges. 47 proven. 13 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2024-11-10 19:24:13,270 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 19:24:13,270 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1403622255] [2024-11-10 19:24:13,270 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1403622255] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 19:24:13,270 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [146091172] [2024-11-10 19:24:13,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 19:24:13,270 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 19:24:13,271 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 19:24:13,272 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-10 19:24:13,281 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-11-10 19:24:13,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:24:13,313 INFO L255 TraceCheckSpWp]: Trace formula consists of 148 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-10 19:24:13,314 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 19:24:13,374 INFO L134 CoverageAnalysis]: Checked inductivity of 79 backedges. 47 proven. 13 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2024-11-10 19:24:13,374 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-10 19:24:13,439 INFO L134 CoverageAnalysis]: Checked inductivity of 79 backedges. 18 proven. 42 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2024-11-10 19:24:13,439 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [146091172] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-10 19:24:13,439 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-10 19:24:13,439 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 6 [2024-11-10 19:24:13,439 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [567835660] [2024-11-10 19:24:13,439 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-10 19:24:13,440 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-10 19:24:13,440 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 19:24:13,440 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-10 19:24:13,440 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-10 19:24:13,440 INFO L87 Difference]: Start difference. First operand 368 states and 427 transitions. Second operand has 6 states, 6 states have (on average 13.833333333333334) internal successors, (83), 6 states have internal predecessors, (83), 5 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) [2024-11-10 19:24:13,510 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 19:24:13,510 INFO L93 Difference]: Finished difference Result 505 states and 576 transitions. [2024-11-10 19:24:13,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-10 19:24:13,511 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.833333333333334) internal successors, (83), 6 states have internal predecessors, (83), 5 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) Word has length 88 [2024-11-10 19:24:13,511 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 19:24:13,512 INFO L225 Difference]: With dead ends: 505 [2024-11-10 19:24:13,512 INFO L226 Difference]: Without dead ends: 340 [2024-11-10 19:24:13,512 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 190 GetRequests, 186 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-10 19:24:13,512 INFO L432 NwaCegarLoop]: 43 mSDtfsCounter, 9 mSDsluCounter, 111 mSDsCounter, 0 mSdLazyCounter, 111 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 154 SdHoareTripleChecker+Invalid, 112 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 111 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-10 19:24:13,513 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 154 Invalid, 112 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 111 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-10 19:24:13,513 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 340 states. [2024-11-10 19:24:13,522 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 340 to 336. [2024-11-10 19:24:13,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 336 states, 311 states have (on average 1.1028938906752412) internal successors, (343), 316 states have internal predecessors, (343), 17 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-11-10 19:24:13,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 336 states to 336 states and 377 transitions. [2024-11-10 19:24:13,523 INFO L78 Accepts]: Start accepts. Automaton has 336 states and 377 transitions. Word has length 88 [2024-11-10 19:24:13,523 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 19:24:13,523 INFO L471 AbstractCegarLoop]: Abstraction has 336 states and 377 transitions. [2024-11-10 19:24:13,523 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.833333333333334) internal successors, (83), 6 states have internal predecessors, (83), 5 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) [2024-11-10 19:24:13,523 INFO L276 IsEmpty]: Start isEmpty. Operand 336 states and 377 transitions. [2024-11-10 19:24:13,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2024-11-10 19:24:13,524 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 19:24:13,524 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 19:24:13,537 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2024-11-10 19:24:13,728 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2024-11-10 19:24:13,728 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-10 19:24:13,729 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 19:24:13,729 INFO L85 PathProgramCache]: Analyzing trace with hash 1435762156, now seen corresponding path program 2 times [2024-11-10 19:24:13,729 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 19:24:13,729 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [357584621] [2024-11-10 19:24:13,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 19:24:13,729 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 19:24:13,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:24:13,822 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-10 19:24:13,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:24:13,824 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-10 19:24:13,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:24:13,824 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-10 19:24:13,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:24:13,826 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-10 19:24:13,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:24:13,828 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-11-10 19:24:13,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:24:13,843 INFO L134 CoverageAnalysis]: Checked inductivity of 79 backedges. 6 proven. 63 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-10 19:24:13,843 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 19:24:13,843 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [357584621] [2024-11-10 19:24:13,843 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [357584621] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 19:24:13,843 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [610219432] [2024-11-10 19:24:13,843 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-10 19:24:13,843 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 19:24:13,843 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 19:24:13,845 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-10 19:24:13,846 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-11-10 19:24:13,881 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-10 19:24:13,881 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-10 19:24:13,882 INFO L255 TraceCheckSpWp]: Trace formula consists of 145 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-10 19:24:13,883 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 19:24:13,945 INFO L134 CoverageAnalysis]: Checked inductivity of 79 backedges. 6 proven. 63 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-10 19:24:13,945 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-10 19:24:14,094 INFO L134 CoverageAnalysis]: Checked inductivity of 79 backedges. 6 proven. 63 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-10 19:24:14,094 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [610219432] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-10 19:24:14,094 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-10 19:24:14,094 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 14 [2024-11-10 19:24:14,095 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1415381255] [2024-11-10 19:24:14,095 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-10 19:24:14,095 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-10 19:24:14,095 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 19:24:14,095 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-10 19:24:14,095 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=160, Unknown=0, NotChecked=0, Total=210 [2024-11-10 19:24:14,096 INFO L87 Difference]: Start difference. First operand 336 states and 377 transitions. Second operand has 15 states, 14 states have (on average 9.642857142857142) internal successors, (135), 15 states have internal predecessors, (135), 7 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 7 states have call predecessors, (8), 7 states have call successors, (8) [2024-11-10 19:24:14,584 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 19:24:14,584 INFO L93 Difference]: Finished difference Result 769 states and 876 transitions. [2024-11-10 19:24:14,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2024-11-10 19:24:14,586 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 9.642857142857142) internal successors, (135), 15 states have internal predecessors, (135), 7 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 7 states have call predecessors, (8), 7 states have call successors, (8) Word has length 88 [2024-11-10 19:24:14,587 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 19:24:14,589 INFO L225 Difference]: With dead ends: 769 [2024-11-10 19:24:14,589 INFO L226 Difference]: Without dead ends: 755 [2024-11-10 19:24:14,589 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 206 GetRequests, 178 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 156 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=258, Invalid=612, Unknown=0, NotChecked=0, Total=870 [2024-11-10 19:24:14,590 INFO L432 NwaCegarLoop]: 21 mSDtfsCounter, 156 mSDsluCounter, 196 mSDsCounter, 0 mSdLazyCounter, 351 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 157 SdHoareTripleChecker+Valid, 217 SdHoareTripleChecker+Invalid, 374 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 351 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-10 19:24:14,590 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [157 Valid, 217 Invalid, 374 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 351 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-10 19:24:14,596 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 755 states. [2024-11-10 19:24:14,644 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 755 to 657. [2024-11-10 19:24:14,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 657 states, 619 states have (on average 1.098546042003231) internal successors, (680), 623 states have internal predecessors, (680), 31 states have call successors, (31), 2 states have call predecessors, (31), 2 states have return successors, (31), 31 states have call predecessors, (31), 31 states have call successors, (31) [2024-11-10 19:24:14,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 657 states to 657 states and 742 transitions. [2024-11-10 19:24:14,647 INFO L78 Accepts]: Start accepts. Automaton has 657 states and 742 transitions. Word has length 88 [2024-11-10 19:24:14,647 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 19:24:14,647 INFO L471 AbstractCegarLoop]: Abstraction has 657 states and 742 transitions. [2024-11-10 19:24:14,647 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 9.642857142857142) internal successors, (135), 15 states have internal predecessors, (135), 7 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 7 states have call predecessors, (8), 7 states have call successors, (8) [2024-11-10 19:24:14,647 INFO L276 IsEmpty]: Start isEmpty. Operand 657 states and 742 transitions. [2024-11-10 19:24:14,648 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2024-11-10 19:24:14,648 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 19:24:14,648 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 19:24:14,660 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2024-11-10 19:24:14,852 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 19:24:14,853 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-10 19:24:14,853 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 19:24:14,853 INFO L85 PathProgramCache]: Analyzing trace with hash -904451391, now seen corresponding path program 1 times [2024-11-10 19:24:14,853 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 19:24:14,853 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [141440200] [2024-11-10 19:24:14,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 19:24:14,853 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 19:24:14,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:24:14,904 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-10 19:24:14,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:24:14,905 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-10 19:24:14,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:24:14,907 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-10 19:24:14,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:24:14,908 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-10 19:24:14,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:24:14,910 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-11-10 19:24:14,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:24:14,912 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-11-10 19:24:14,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:24:14,914 INFO L134 CoverageAnalysis]: Checked inductivity of 109 backedges. 56 proven. 12 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2024-11-10 19:24:14,914 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 19:24:14,914 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [141440200] [2024-11-10 19:24:14,915 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [141440200] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 19:24:14,915 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1576901287] [2024-11-10 19:24:14,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 19:24:14,915 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 19:24:14,915 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 19:24:14,916 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-10 19:24:14,917 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2024-11-10 19:24:14,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:24:14,953 INFO L255 TraceCheckSpWp]: Trace formula consists of 159 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-10 19:24:14,954 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 19:24:14,988 INFO L134 CoverageAnalysis]: Checked inductivity of 109 backedges. 56 proven. 12 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2024-11-10 19:24:14,988 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-10 19:24:15,041 INFO L134 CoverageAnalysis]: Checked inductivity of 109 backedges. 56 proven. 12 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2024-11-10 19:24:15,042 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1576901287] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-10 19:24:15,042 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-10 19:24:15,042 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6 [2024-11-10 19:24:15,042 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [427155425] [2024-11-10 19:24:15,042 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-10 19:24:15,043 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-10 19:24:15,043 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 19:24:15,043 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-10 19:24:15,044 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-11-10 19:24:15,044 INFO L87 Difference]: Start difference. First operand 657 states and 742 transitions. Second operand has 7 states, 6 states have (on average 19.166666666666668) internal successors, (115), 7 states have internal predecessors, (115), 6 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 6 states have call predecessors, (8), 6 states have call successors, (8) [2024-11-10 19:24:15,114 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 19:24:15,115 INFO L93 Difference]: Finished difference Result 815 states and 929 transitions. [2024-11-10 19:24:15,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-10 19:24:15,115 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 19.166666666666668) internal successors, (115), 7 states have internal predecessors, (115), 6 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 6 states have call predecessors, (8), 6 states have call successors, (8) Word has length 98 [2024-11-10 19:24:15,116 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 19:24:15,118 INFO L225 Difference]: With dead ends: 815 [2024-11-10 19:24:15,118 INFO L226 Difference]: Without dead ends: 813 [2024-11-10 19:24:15,118 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 209 GetRequests, 204 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-11-10 19:24:15,119 INFO L432 NwaCegarLoop]: 32 mSDtfsCounter, 13 mSDsluCounter, 86 mSDsCounter, 0 mSdLazyCounter, 74 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 118 SdHoareTripleChecker+Invalid, 79 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 74 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-10 19:24:15,120 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 118 Invalid, 79 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 74 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-10 19:24:15,121 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 813 states. [2024-11-10 19:24:15,141 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 813 to 813. [2024-11-10 19:24:15,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 813 states, 769 states have (on average 1.0676202860858257) internal successors, (821), 772 states have internal predecessors, (821), 38 states have call successors, (38), 2 states have call predecessors, (38), 2 states have return successors, (38), 38 states have call predecessors, (38), 38 states have call successors, (38) [2024-11-10 19:24:15,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 813 states to 813 states and 897 transitions. [2024-11-10 19:24:15,145 INFO L78 Accepts]: Start accepts. Automaton has 813 states and 897 transitions. Word has length 98 [2024-11-10 19:24:15,145 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 19:24:15,145 INFO L471 AbstractCegarLoop]: Abstraction has 813 states and 897 transitions. [2024-11-10 19:24:15,145 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 19.166666666666668) internal successors, (115), 7 states have internal predecessors, (115), 6 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 6 states have call predecessors, (8), 6 states have call successors, (8) [2024-11-10 19:24:15,145 INFO L276 IsEmpty]: Start isEmpty. Operand 813 states and 897 transitions. [2024-11-10 19:24:15,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-11-10 19:24:15,146 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 19:24:15,146 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 19:24:15,158 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2024-11-10 19:24:15,346 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 19:24:15,347 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-10 19:24:15,347 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 19:24:15,348 INFO L85 PathProgramCache]: Analyzing trace with hash -384952479, now seen corresponding path program 1 times [2024-11-10 19:24:15,348 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 19:24:15,348 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [920673235] [2024-11-10 19:24:15,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 19:24:15,348 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 19:24:15,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:24:15,400 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-10 19:24:15,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:24:15,402 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-10 19:24:15,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:24:15,403 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-10 19:24:15,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:24:15,406 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-10 19:24:15,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:24:15,408 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-11-10 19:24:15,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:24:15,409 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-11-10 19:24:15,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:24:15,411 INFO L134 CoverageAnalysis]: Checked inductivity of 130 backedges. 0 proven. 102 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-11-10 19:24:15,411 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 19:24:15,411 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [920673235] [2024-11-10 19:24:15,412 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [920673235] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 19:24:15,412 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [92038047] [2024-11-10 19:24:15,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 19:24:15,412 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 19:24:15,412 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 19:24:15,413 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-10 19:24:15,417 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2024-11-10 19:24:15,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:24:15,456 INFO L255 TraceCheckSpWp]: Trace formula consists of 169 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-10 19:24:15,470 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 19:24:15,533 INFO L134 CoverageAnalysis]: Checked inductivity of 130 backedges. 0 proven. 102 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-11-10 19:24:15,533 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-10 19:24:15,627 INFO L134 CoverageAnalysis]: Checked inductivity of 130 backedges. 0 proven. 102 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-11-10 19:24:15,628 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [92038047] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-10 19:24:15,628 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-10 19:24:15,628 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2024-11-10 19:24:15,629 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1532983833] [2024-11-10 19:24:15,629 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-10 19:24:15,629 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-10 19:24:15,629 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 19:24:15,630 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-10 19:24:15,630 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=55, Unknown=0, NotChecked=0, Total=110 [2024-11-10 19:24:15,630 INFO L87 Difference]: Start difference. First operand 813 states and 897 transitions. Second operand has 11 states, 10 states have (on average 16.2) internal successors, (162), 11 states have internal predecessors, (162), 10 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 10 states have call predecessors, (11), 10 states have call successors, (11) [2024-11-10 19:24:15,759 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 19:24:15,760 INFO L93 Difference]: Finished difference Result 1508 states and 1697 transitions. [2024-11-10 19:24:15,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-10 19:24:15,760 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 16.2) internal successors, (162), 11 states have internal predecessors, (162), 10 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 10 states have call predecessors, (11), 10 states have call successors, (11) Word has length 101 [2024-11-10 19:24:15,761 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 19:24:15,767 INFO L225 Difference]: With dead ends: 1508 [2024-11-10 19:24:15,767 INFO L226 Difference]: Without dead ends: 1507 [2024-11-10 19:24:15,768 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 217 GetRequests, 208 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=55, Invalid=55, Unknown=0, NotChecked=0, Total=110 [2024-11-10 19:24:15,768 INFO L432 NwaCegarLoop]: 33 mSDtfsCounter, 141 mSDsluCounter, 173 mSDsCounter, 0 mSdLazyCounter, 109 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 141 SdHoareTripleChecker+Valid, 206 SdHoareTripleChecker+Invalid, 111 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 109 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-10 19:24:15,769 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [141 Valid, 206 Invalid, 111 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 109 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-10 19:24:15,773 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1507 states. [2024-11-10 19:24:15,817 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1507 to 1499. [2024-11-10 19:24:15,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1499 states, 1419 states have (on average 1.0817477096546864) internal successors, (1535), 1422 states have internal predecessors, (1535), 74 states have call successors, (74), 2 states have call predecessors, (74), 2 states have return successors, (74), 74 states have call predecessors, (74), 74 states have call successors, (74) [2024-11-10 19:24:15,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1499 states to 1499 states and 1683 transitions. [2024-11-10 19:24:15,823 INFO L78 Accepts]: Start accepts. Automaton has 1499 states and 1683 transitions. Word has length 101 [2024-11-10 19:24:15,824 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 19:24:15,824 INFO L471 AbstractCegarLoop]: Abstraction has 1499 states and 1683 transitions. [2024-11-10 19:24:15,824 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 16.2) internal successors, (162), 11 states have internal predecessors, (162), 10 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 10 states have call predecessors, (11), 10 states have call successors, (11) [2024-11-10 19:24:15,824 INFO L276 IsEmpty]: Start isEmpty. Operand 1499 states and 1683 transitions. [2024-11-10 19:24:15,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2024-11-10 19:24:15,826 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 19:24:15,826 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 19:24:15,840 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2024-11-10 19:24:16,026 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 19:24:16,027 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-10 19:24:16,027 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 19:24:16,027 INFO L85 PathProgramCache]: Analyzing trace with hash -1696751430, now seen corresponding path program 1 times [2024-11-10 19:24:16,027 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 19:24:16,027 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2145933011] [2024-11-10 19:24:16,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 19:24:16,028 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 19:24:16,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:24:16,106 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-10 19:24:16,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:24:16,108 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-10 19:24:16,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:24:16,109 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-10 19:24:16,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:24:16,111 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-10 19:24:16,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:24:16,114 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-11-10 19:24:16,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:24:16,116 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-11-10 19:24:16,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:24:16,118 INFO L134 CoverageAnalysis]: Checked inductivity of 140 backedges. 76 proven. 26 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2024-11-10 19:24:16,118 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 19:24:16,118 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2145933011] [2024-11-10 19:24:16,118 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2145933011] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 19:24:16,118 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [943972005] [2024-11-10 19:24:16,118 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 19:24:16,118 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 19:24:16,119 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 19:24:16,123 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-10 19:24:16,125 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2024-11-10 19:24:16,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:24:16,166 INFO L255 TraceCheckSpWp]: Trace formula consists of 178 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-10 19:24:16,167 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 19:24:16,251 INFO L134 CoverageAnalysis]: Checked inductivity of 140 backedges. 88 proven. 26 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2024-11-10 19:24:16,251 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-10 19:24:16,333 INFO L134 CoverageAnalysis]: Checked inductivity of 140 backedges. 76 proven. 26 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2024-11-10 19:24:16,333 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [943972005] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-10 19:24:16,334 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-10 19:24:16,334 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 9 [2024-11-10 19:24:16,334 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [908003029] [2024-11-10 19:24:16,334 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-10 19:24:16,334 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-10 19:24:16,335 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 19:24:16,335 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-10 19:24:16,335 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-10 19:24:16,335 INFO L87 Difference]: Start difference. First operand 1499 states and 1683 transitions. Second operand has 9 states, 9 states have (on average 14.11111111111111) internal successors, (127), 9 states have internal predecessors, (127), 8 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 8 states have call predecessors, (10), 8 states have call successors, (10) [2024-11-10 19:24:16,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 19:24:16,500 INFO L93 Difference]: Finished difference Result 1575 states and 1762 transitions. [2024-11-10 19:24:16,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-10 19:24:16,501 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 14.11111111111111) internal successors, (127), 9 states have internal predecessors, (127), 8 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 8 states have call predecessors, (10), 8 states have call successors, (10) Word has length 109 [2024-11-10 19:24:16,501 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 19:24:16,505 INFO L225 Difference]: With dead ends: 1575 [2024-11-10 19:24:16,505 INFO L226 Difference]: Without dead ends: 1424 [2024-11-10 19:24:16,506 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 235 GetRequests, 224 SyntacticMatches, 3 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2024-11-10 19:24:16,507 INFO L432 NwaCegarLoop]: 57 mSDtfsCounter, 35 mSDsluCounter, 203 mSDsCounter, 0 mSdLazyCounter, 253 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 260 SdHoareTripleChecker+Invalid, 255 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 253 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-10 19:24:16,508 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 260 Invalid, 255 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 253 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-10 19:24:16,509 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1424 states. [2024-11-10 19:24:16,544 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1424 to 1422. [2024-11-10 19:24:16,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1422 states, 1345 states have (on average 1.0728624535315985) internal successors, (1443), 1348 states have internal predecessors, (1443), 71 states have call successors, (71), 2 states have call predecessors, (71), 2 states have return successors, (71), 71 states have call predecessors, (71), 71 states have call successors, (71) [2024-11-10 19:24:16,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1422 states to 1422 states and 1585 transitions. [2024-11-10 19:24:16,549 INFO L78 Accepts]: Start accepts. Automaton has 1422 states and 1585 transitions. Word has length 109 [2024-11-10 19:24:16,549 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 19:24:16,549 INFO L471 AbstractCegarLoop]: Abstraction has 1422 states and 1585 transitions. [2024-11-10 19:24:16,549 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 14.11111111111111) internal successors, (127), 9 states have internal predecessors, (127), 8 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 8 states have call predecessors, (10), 8 states have call successors, (10) [2024-11-10 19:24:16,549 INFO L276 IsEmpty]: Start isEmpty. Operand 1422 states and 1585 transitions. [2024-11-10 19:24:16,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2024-11-10 19:24:16,550 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 19:24:16,550 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 19:24:16,566 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Ended with exit code 0 [2024-11-10 19:24:16,750 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 19:24:16,751 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-10 19:24:16,751 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 19:24:16,751 INFO L85 PathProgramCache]: Analyzing trace with hash 689960014, now seen corresponding path program 1 times [2024-11-10 19:24:16,751 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 19:24:16,751 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1431661036] [2024-11-10 19:24:16,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 19:24:16,752 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 19:24:16,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:24:16,829 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-10 19:24:16,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:24:16,831 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-10 19:24:16,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:24:16,832 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-10 19:24:16,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:24:16,848 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-10 19:24:16,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:24:16,851 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-11-10 19:24:16,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:24:16,854 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-11-10 19:24:16,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:24:16,855 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-11-10 19:24:16,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:24:16,857 INFO L134 CoverageAnalysis]: Checked inductivity of 206 backedges. 0 proven. 162 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2024-11-10 19:24:16,857 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 19:24:16,857 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1431661036] [2024-11-10 19:24:16,857 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1431661036] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 19:24:16,857 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [750385340] [2024-11-10 19:24:16,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 19:24:16,857 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 19:24:16,858 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 19:24:16,859 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-10 19:24:16,865 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2024-11-10 19:24:16,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:24:16,906 INFO L255 TraceCheckSpWp]: Trace formula consists of 185 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-10 19:24:16,907 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 19:24:16,982 INFO L134 CoverageAnalysis]: Checked inductivity of 206 backedges. 0 proven. 162 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2024-11-10 19:24:16,983 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-10 19:24:17,110 INFO L134 CoverageAnalysis]: Checked inductivity of 206 backedges. 0 proven. 162 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2024-11-10 19:24:17,111 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [750385340] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-10 19:24:17,111 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-10 19:24:17,111 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 12 [2024-11-10 19:24:17,111 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1635178400] [2024-11-10 19:24:17,111 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-10 19:24:17,112 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-10 19:24:17,112 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 19:24:17,112 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-10 19:24:17,113 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2024-11-10 19:24:17,113 INFO L87 Difference]: Start difference. First operand 1422 states and 1585 transitions. Second operand has 13 states, 12 states have (on average 16.0) internal successors, (192), 13 states have internal predecessors, (192), 12 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 12 states have call predecessors, (13), 12 states have call successors, (13) [2024-11-10 19:24:17,271 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 19:24:17,272 INFO L93 Difference]: Finished difference Result 2499 states and 2889 transitions. [2024-11-10 19:24:17,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-10 19:24:17,273 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 16.0) internal successors, (192), 13 states have internal predecessors, (192), 12 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 12 states have call predecessors, (13), 12 states have call successors, (13) Word has length 121 [2024-11-10 19:24:17,273 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 19:24:17,279 INFO L225 Difference]: With dead ends: 2499 [2024-11-10 19:24:17,279 INFO L226 Difference]: Without dead ends: 2498 [2024-11-10 19:24:17,280 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 260 GetRequests, 249 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2024-11-10 19:24:17,281 INFO L432 NwaCegarLoop]: 32 mSDtfsCounter, 31 mSDsluCounter, 111 mSDsCounter, 0 mSdLazyCounter, 125 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 143 SdHoareTripleChecker+Invalid, 132 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 125 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-10 19:24:17,281 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 143 Invalid, 132 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 125 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-10 19:24:17,283 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2498 states. [2024-11-10 19:24:17,364 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2498 to 2498. [2024-11-10 19:24:17,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2498 states, 2363 states have (on average 1.0880236986881084) internal successors, (2571), 2366 states have internal predecessors, (2571), 129 states have call successors, (129), 2 states have call predecessors, (129), 2 states have return successors, (129), 129 states have call predecessors, (129), 129 states have call successors, (129) [2024-11-10 19:24:17,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2498 states to 2498 states and 2829 transitions. [2024-11-10 19:24:17,372 INFO L78 Accepts]: Start accepts. Automaton has 2498 states and 2829 transitions. Word has length 121 [2024-11-10 19:24:17,372 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 19:24:17,372 INFO L471 AbstractCegarLoop]: Abstraction has 2498 states and 2829 transitions. [2024-11-10 19:24:17,372 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 16.0) internal successors, (192), 13 states have internal predecessors, (192), 12 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 12 states have call predecessors, (13), 12 states have call successors, (13) [2024-11-10 19:24:17,372 INFO L276 IsEmpty]: Start isEmpty. Operand 2498 states and 2829 transitions. [2024-11-10 19:24:17,373 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2024-11-10 19:24:17,373 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 19:24:17,373 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 19:24:17,385 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2024-11-10 19:24:17,577 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 19:24:17,578 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-10 19:24:17,578 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 19:24:17,578 INFO L85 PathProgramCache]: Analyzing trace with hash 1322449067, now seen corresponding path program 2 times [2024-11-10 19:24:17,578 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 19:24:17,578 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [154533445] [2024-11-10 19:24:17,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 19:24:17,579 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 19:24:17,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:24:17,667 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-10 19:24:17,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:24:17,669 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-10 19:24:17,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:24:17,670 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-10 19:24:17,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:24:17,672 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-10 19:24:17,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:24:17,674 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-11-10 19:24:17,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:24:17,676 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-11-10 19:24:17,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:24:17,679 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-11-10 19:24:17,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:24:17,682 INFO L134 CoverageAnalysis]: Checked inductivity of 218 backedges. 58 proven. 116 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2024-11-10 19:24:17,682 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 19:24:17,682 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [154533445] [2024-11-10 19:24:17,682 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [154533445] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 19:24:17,682 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [939750269] [2024-11-10 19:24:17,682 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-10 19:24:17,683 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 19:24:17,683 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 19:24:17,684 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-10 19:24:17,685 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2024-11-10 19:24:17,724 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-10 19:24:17,724 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-10 19:24:17,725 INFO L255 TraceCheckSpWp]: Trace formula consists of 204 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-10 19:24:17,726 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 19:24:17,857 INFO L134 CoverageAnalysis]: Checked inductivity of 218 backedges. 71 proven. 103 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2024-11-10 19:24:17,858 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-10 19:24:17,975 INFO L134 CoverageAnalysis]: Checked inductivity of 218 backedges. 71 proven. 103 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2024-11-10 19:24:17,975 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [939750269] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-10 19:24:17,975 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-10 19:24:17,975 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 12 [2024-11-10 19:24:17,975 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1740000303] [2024-11-10 19:24:17,975 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-10 19:24:17,976 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-10 19:24:17,976 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 19:24:17,976 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-10 19:24:17,976 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2024-11-10 19:24:17,976 INFO L87 Difference]: Start difference. First operand 2498 states and 2829 transitions. Second operand has 12 states, 12 states have (on average 14.333333333333334) internal successors, (172), 12 states have internal predecessors, (172), 10 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 10 states have call predecessors, (11), 10 states have call successors, (11) [2024-11-10 19:24:18,353 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 19:24:18,353 INFO L93 Difference]: Finished difference Result 5395 states and 6164 transitions. [2024-11-10 19:24:18,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-10 19:24:18,353 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 14.333333333333334) internal successors, (172), 12 states have internal predecessors, (172), 10 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 10 states have call predecessors, (11), 10 states have call successors, (11) Word has length 132 [2024-11-10 19:24:18,354 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 19:24:18,365 INFO L225 Difference]: With dead ends: 5395 [2024-11-10 19:24:18,365 INFO L226 Difference]: Without dead ends: 3898 [2024-11-10 19:24:18,370 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 286 GetRequests, 269 SyntacticMatches, 5 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=52, Invalid=130, Unknown=0, NotChecked=0, Total=182 [2024-11-10 19:24:18,370 INFO L432 NwaCegarLoop]: 76 mSDtfsCounter, 35 mSDsluCounter, 376 mSDsCounter, 0 mSdLazyCounter, 613 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 452 SdHoareTripleChecker+Invalid, 616 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 613 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-10 19:24:18,370 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 452 Invalid, 616 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 613 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-10 19:24:18,373 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3898 states. [2024-11-10 19:24:18,475 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3898 to 2718. [2024-11-10 19:24:18,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2718 states, 2571 states have (on average 1.0840140023337224) internal successors, (2787), 2574 states have internal predecessors, (2787), 141 states have call successors, (141), 2 states have call predecessors, (141), 2 states have return successors, (141), 141 states have call predecessors, (141), 141 states have call successors, (141) [2024-11-10 19:24:18,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2718 states to 2718 states and 3069 transitions. [2024-11-10 19:24:18,491 INFO L78 Accepts]: Start accepts. Automaton has 2718 states and 3069 transitions. Word has length 132 [2024-11-10 19:24:18,491 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 19:24:18,491 INFO L471 AbstractCegarLoop]: Abstraction has 2718 states and 3069 transitions. [2024-11-10 19:24:18,492 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 14.333333333333334) internal successors, (172), 12 states have internal predecessors, (172), 10 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 10 states have call predecessors, (11), 10 states have call successors, (11) [2024-11-10 19:24:18,492 INFO L276 IsEmpty]: Start isEmpty. Operand 2718 states and 3069 transitions. [2024-11-10 19:24:18,493 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2024-11-10 19:24:18,493 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 19:24:18,494 INFO L215 NwaCegarLoop]: trace histogram [7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 19:24:18,506 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Ended with exit code 0 [2024-11-10 19:24:18,694 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,20 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 19:24:18,695 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-10 19:24:18,695 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 19:24:18,695 INFO L85 PathProgramCache]: Analyzing trace with hash 300581755, now seen corresponding path program 3 times [2024-11-10 19:24:18,695 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 19:24:18,695 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [750579059] [2024-11-10 19:24:18,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 19:24:18,696 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 19:24:18,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-10 19:24:18,718 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1220130362] [2024-11-10 19:24:18,718 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-10 19:24:18,718 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 19:24:18,719 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 19:24:18,720 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-10 19:24:18,721 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2024-11-10 19:24:18,767 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2024-11-10 19:24:18,768 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-10 19:24:18,768 INFO L255 TraceCheckSpWp]: Trace formula consists of 117 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-10 19:24:18,770 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 19:24:18,821 INFO L134 CoverageAnalysis]: Checked inductivity of 373 backedges. 124 proven. 7 refuted. 0 times theorem prover too weak. 242 trivial. 0 not checked. [2024-11-10 19:24:18,821 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-10 19:24:19,143 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 19:24:19,143 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [750579059] [2024-11-10 19:24:19,143 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-10 19:24:19,143 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1220130362] [2024-11-10 19:24:19,143 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1220130362] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 19:24:19,143 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-10 19:24:19,144 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2024-11-10 19:24:19,144 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1460747342] [2024-11-10 19:24:19,144 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-10 19:24:19,144 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-10 19:24:19,144 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 19:24:19,145 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-10 19:24:19,145 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2024-11-10 19:24:19,145 INFO L87 Difference]: Start difference. First operand 2718 states and 3069 transitions. Second operand has 6 states, 5 states have (on average 10.6) internal successors, (53), 6 states have internal predecessors, (53), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-10 19:24:19,248 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 19:24:19,249 INFO L93 Difference]: Finished difference Result 2720 states and 3069 transitions. [2024-11-10 19:24:19,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-10 19:24:19,249 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 10.6) internal successors, (53), 6 states have internal predecessors, (53), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 155 [2024-11-10 19:24:19,249 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 19:24:19,255 INFO L225 Difference]: With dead ends: 2720 [2024-11-10 19:24:19,255 INFO L226 Difference]: Without dead ends: 2719 [2024-11-10 19:24:19,256 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 170 GetRequests, 161 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2024-11-10 19:24:19,257 INFO L432 NwaCegarLoop]: 36 mSDtfsCounter, 23 mSDsluCounter, 59 mSDsCounter, 0 mSdLazyCounter, 73 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 95 SdHoareTripleChecker+Invalid, 76 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 73 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-10 19:24:19,257 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 95 Invalid, 76 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 73 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-10 19:24:19,258 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2719 states. [2024-11-10 19:24:19,355 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2719 to 2718. [2024-11-10 19:24:19,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2718 states, 2571 states have (on average 1.0828471411901983) internal successors, (2784), 2574 states have internal predecessors, (2784), 141 states have call successors, (141), 2 states have call predecessors, (141), 2 states have return successors, (141), 141 states have call predecessors, (141), 141 states have call successors, (141) [2024-11-10 19:24:19,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2718 states to 2718 states and 3066 transitions. [2024-11-10 19:24:19,363 INFO L78 Accepts]: Start accepts. Automaton has 2718 states and 3066 transitions. Word has length 155 [2024-11-10 19:24:19,363 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 19:24:19,363 INFO L471 AbstractCegarLoop]: Abstraction has 2718 states and 3066 transitions. [2024-11-10 19:24:19,363 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 10.6) internal successors, (53), 6 states have internal predecessors, (53), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-10 19:24:19,364 INFO L276 IsEmpty]: Start isEmpty. Operand 2718 states and 3066 transitions. [2024-11-10 19:24:19,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2024-11-10 19:24:19,365 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 19:24:19,365 INFO L215 NwaCegarLoop]: trace histogram [7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 19:24:19,381 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Ended with exit code 0 [2024-11-10 19:24:19,565 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2024-11-10 19:24:19,566 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-10 19:24:19,566 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 19:24:19,567 INFO L85 PathProgramCache]: Analyzing trace with hash 1454772696, now seen corresponding path program 3 times [2024-11-10 19:24:19,567 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 19:24:19,567 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [831646327] [2024-11-10 19:24:19,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 19:24:19,567 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 19:24:19,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-10 19:24:19,585 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [917191526] [2024-11-10 19:24:19,585 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-10 19:24:19,585 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 19:24:19,585 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 19:24:19,586 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-10 19:24:19,590 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2024-11-10 19:24:19,637 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2024-11-10 19:24:19,637 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-10 19:24:19,638 INFO L255 TraceCheckSpWp]: Trace formula consists of 207 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-10 19:24:19,639 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 19:24:19,805 INFO L134 CoverageAnalysis]: Checked inductivity of 319 backedges. 0 proven. 229 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2024-11-10 19:24:19,806 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-10 19:24:20,128 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 19:24:20,128 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [831646327] [2024-11-10 19:24:20,128 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-10 19:24:20,128 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [917191526] [2024-11-10 19:24:20,128 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [917191526] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 19:24:20,128 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-10 19:24:20,128 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2024-11-10 19:24:20,128 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1960865576] [2024-11-10 19:24:20,129 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-10 19:24:20,129 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-10 19:24:20,129 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 19:24:20,129 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-10 19:24:20,129 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2024-11-10 19:24:20,129 INFO L87 Difference]: Start difference. First operand 2718 states and 3066 transitions. Second operand has 8 states, 7 states have (on average 14.142857142857142) internal successors, (99), 8 states have internal predecessors, (99), 5 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) [2024-11-10 19:24:20,406 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 19:24:20,406 INFO L93 Difference]: Finished difference Result 4350 states and 4934 transitions. [2024-11-10 19:24:20,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-10 19:24:20,407 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 14.142857142857142) internal successors, (99), 8 states have internal predecessors, (99), 5 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) Word has length 155 [2024-11-10 19:24:20,407 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 19:24:20,413 INFO L225 Difference]: With dead ends: 4350 [2024-11-10 19:24:20,414 INFO L226 Difference]: Without dead ends: 2671 [2024-11-10 19:24:20,416 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 179 GetRequests, 160 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=108, Invalid=312, Unknown=0, NotChecked=0, Total=420 [2024-11-10 19:24:20,417 INFO L432 NwaCegarLoop]: 48 mSDtfsCounter, 141 mSDsluCounter, 162 mSDsCounter, 0 mSdLazyCounter, 297 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 210 SdHoareTripleChecker+Invalid, 310 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 297 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-10 19:24:20,417 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [142 Valid, 210 Invalid, 310 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 297 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-10 19:24:20,418 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2671 states. [2024-11-10 19:24:20,502 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2671 to 2495. [2024-11-10 19:24:20,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2495 states, 2358 states have (on average 1.0826972010178118) internal successors, (2553), 2361 states have internal predecessors, (2553), 131 states have call successors, (131), 2 states have call predecessors, (131), 2 states have return successors, (131), 131 states have call predecessors, (131), 131 states have call successors, (131) [2024-11-10 19:24:20,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2495 states to 2495 states and 2815 transitions. [2024-11-10 19:24:20,509 INFO L78 Accepts]: Start accepts. Automaton has 2495 states and 2815 transitions. Word has length 155 [2024-11-10 19:24:20,509 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 19:24:20,509 INFO L471 AbstractCegarLoop]: Abstraction has 2495 states and 2815 transitions. [2024-11-10 19:24:20,510 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 14.142857142857142) internal successors, (99), 8 states have internal predecessors, (99), 5 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) [2024-11-10 19:24:20,510 INFO L276 IsEmpty]: Start isEmpty. Operand 2495 states and 2815 transitions. [2024-11-10 19:24:20,511 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2024-11-10 19:24:20,511 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 19:24:20,511 INFO L215 NwaCegarLoop]: trace histogram [7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 19:24:20,523 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Forceful destruction successful, exit code 0 [2024-11-10 19:24:20,712 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2024-11-10 19:24:20,712 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-10 19:24:20,716 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 19:24:20,716 INFO L85 PathProgramCache]: Analyzing trace with hash -226904197, now seen corresponding path program 4 times [2024-11-10 19:24:20,716 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 19:24:20,716 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1045032734] [2024-11-10 19:24:20,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 19:24:20,717 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 19:24:20,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-10 19:24:20,744 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2036796713] [2024-11-10 19:24:20,744 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-10 19:24:20,744 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 19:24:20,744 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 19:24:20,745 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-10 19:24:20,747 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2024-11-10 19:24:20,793 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-10 19:24:20,793 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-10 19:24:20,793 INFO L255 TraceCheckSpWp]: Trace formula consists of 233 conjuncts, 33 conjuncts are in the unsatisfiable core [2024-11-10 19:24:20,795 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 19:24:21,331 INFO L134 CoverageAnalysis]: Checked inductivity of 325 backedges. 12 proven. 264 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2024-11-10 19:24:21,332 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-10 19:24:21,644 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 19:24:21,644 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1045032734] [2024-11-10 19:24:21,644 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-10 19:24:21,644 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2036796713] [2024-11-10 19:24:21,644 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2036796713] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 19:24:21,644 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-10 19:24:21,644 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17] total 17 [2024-11-10 19:24:21,645 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [614857821] [2024-11-10 19:24:21,645 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-10 19:24:21,645 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-10 19:24:21,645 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 19:24:21,645 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-10 19:24:21,645 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=352, Unknown=0, NotChecked=0, Total=420 [2024-11-10 19:24:21,646 INFO L87 Difference]: Start difference. First operand 2495 states and 2815 transitions. Second operand has 18 states, 17 states have (on average 7.294117647058823) internal successors, (124), 18 states have internal predecessors, (124), 7 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 7 states have call predecessors, (8), 7 states have call successors, (8) [2024-11-10 19:24:22,281 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 19:24:22,281 INFO L93 Difference]: Finished difference Result 2848 states and 3219 transitions. [2024-11-10 19:24:22,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-10 19:24:22,282 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 17 states have (on average 7.294117647058823) internal successors, (124), 18 states have internal predecessors, (124), 7 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 7 states have call predecessors, (8), 7 states have call successors, (8) Word has length 155 [2024-11-10 19:24:22,282 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 19:24:22,289 INFO L225 Difference]: With dead ends: 2848 [2024-11-10 19:24:22,289 INFO L226 Difference]: Without dead ends: 2847 [2024-11-10 19:24:22,290 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 172 GetRequests, 150 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=99, Invalid=453, Unknown=0, NotChecked=0, Total=552 [2024-11-10 19:24:22,290 INFO L432 NwaCegarLoop]: 50 mSDtfsCounter, 72 mSDsluCounter, 498 mSDsCounter, 0 mSdLazyCounter, 1425 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 548 SdHoareTripleChecker+Invalid, 1429 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1425 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-10 19:24:22,291 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [74 Valid, 548 Invalid, 1429 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1425 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-10 19:24:22,293 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2847 states. [2024-11-10 19:24:22,392 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2847 to 2644. [2024-11-10 19:24:22,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2644 states, 2499 states have (on average 1.084033613445378) internal successors, (2709), 2502 states have internal predecessors, (2709), 139 states have call successors, (139), 2 states have call predecessors, (139), 2 states have return successors, (139), 139 states have call predecessors, (139), 139 states have call successors, (139) [2024-11-10 19:24:22,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2644 states to 2644 states and 2987 transitions. [2024-11-10 19:24:22,405 INFO L78 Accepts]: Start accepts. Automaton has 2644 states and 2987 transitions. Word has length 155 [2024-11-10 19:24:22,406 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 19:24:22,406 INFO L471 AbstractCegarLoop]: Abstraction has 2644 states and 2987 transitions. [2024-11-10 19:24:22,406 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 17 states have (on average 7.294117647058823) internal successors, (124), 18 states have internal predecessors, (124), 7 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 7 states have call predecessors, (8), 7 states have call successors, (8) [2024-11-10 19:24:22,406 INFO L276 IsEmpty]: Start isEmpty. Operand 2644 states and 2987 transitions. [2024-11-10 19:24:22,408 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2024-11-10 19:24:22,408 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 19:24:22,408 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 5, 5, 5, 5, 5, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 19:24:22,422 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Forceful destruction successful, exit code 0 [2024-11-10 19:24:22,612 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2024-11-10 19:24:22,612 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-10 19:24:22,613 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 19:24:22,613 INFO L85 PathProgramCache]: Analyzing trace with hash 1390626701, now seen corresponding path program 5 times [2024-11-10 19:24:22,613 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 19:24:22,613 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [864626633] [2024-11-10 19:24:22,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 19:24:22,614 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 19:24:22,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:24:22,875 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-10 19:24:22,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:24:22,876 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-10 19:24:22,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:24:22,877 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-10 19:24:22,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:24:22,878 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-10 19:24:22,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:24:22,880 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-11-10 19:24:22,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:24:22,881 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-11-10 19:24:22,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:24:22,883 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-11-10 19:24:22,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:24:22,884 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2024-11-10 19:24:22,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:24:22,886 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2024-11-10 19:24:22,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:24:22,888 INFO L134 CoverageAnalysis]: Checked inductivity of 455 backedges. 101 proven. 266 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2024-11-10 19:24:22,888 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 19:24:22,888 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [864626633] [2024-11-10 19:24:22,888 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [864626633] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 19:24:22,888 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [499646077] [2024-11-10 19:24:22,888 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-10 19:24:22,888 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 19:24:22,888 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 19:24:22,889 INFO L229 MonitoredProcess]: Starting monitored process 24 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-10 19:24:22,893 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2024-11-10 19:24:22,944 INFO L227 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 8 check-sat command(s) [2024-11-10 19:24:22,944 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-10 19:24:22,945 INFO L255 TraceCheckSpWp]: Trace formula consists of 262 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-10 19:24:22,947 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 19:24:23,132 INFO L134 CoverageAnalysis]: Checked inductivity of 455 backedges. 130 proven. 237 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2024-11-10 19:24:23,132 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-10 19:24:23,290 INFO L134 CoverageAnalysis]: Checked inductivity of 455 backedges. 130 proven. 237 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2024-11-10 19:24:23,290 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [499646077] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-10 19:24:23,290 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-10 19:24:23,291 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 15 [2024-11-10 19:24:23,291 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [288741727] [2024-11-10 19:24:23,291 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-10 19:24:23,291 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-10 19:24:23,291 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 19:24:23,292 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-10 19:24:23,292 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=152, Unknown=0, NotChecked=0, Total=210 [2024-11-10 19:24:23,292 INFO L87 Difference]: Start difference. First operand 2644 states and 2987 transitions. Second operand has 15 states, 15 states have (on average 15.066666666666666) internal successors, (226), 15 states have internal predecessors, (226), 13 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 13 states have call predecessors, (14), 13 states have call successors, (14) [2024-11-10 19:24:23,695 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 19:24:23,695 INFO L93 Difference]: Finished difference Result 5570 states and 6341 transitions. [2024-11-10 19:24:23,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-10 19:24:23,695 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 15.066666666666666) internal successors, (226), 15 states have internal predecessors, (226), 13 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 13 states have call predecessors, (14), 13 states have call successors, (14) Word has length 178 [2024-11-10 19:24:23,696 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 19:24:23,705 INFO L225 Difference]: With dead ends: 5570 [2024-11-10 19:24:23,705 INFO L226 Difference]: Without dead ends: 4104 [2024-11-10 19:24:23,707 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 385 GetRequests, 362 SyntacticMatches, 7 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 111 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=82, Invalid=224, Unknown=0, NotChecked=0, Total=306 [2024-11-10 19:24:23,708 INFO L432 NwaCegarLoop]: 94 mSDtfsCounter, 35 mSDsluCounter, 385 mSDsCounter, 0 mSdLazyCounter, 642 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 479 SdHoareTripleChecker+Invalid, 645 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 642 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-10 19:24:23,708 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 479 Invalid, 645 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 642 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-10 19:24:23,710 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4104 states. [2024-11-10 19:24:23,789 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4104 to 3045. [2024-11-10 19:24:23,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3045 states, 2879 states have (on average 1.0798888502952415) internal successors, (3109), 2882 states have internal predecessors, (3109), 160 states have call successors, (160), 2 states have call predecessors, (160), 2 states have return successors, (160), 160 states have call predecessors, (160), 160 states have call successors, (160) [2024-11-10 19:24:23,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3045 states to 3045 states and 3429 transitions. [2024-11-10 19:24:23,795 INFO L78 Accepts]: Start accepts. Automaton has 3045 states and 3429 transitions. Word has length 178 [2024-11-10 19:24:23,795 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 19:24:23,795 INFO L471 AbstractCegarLoop]: Abstraction has 3045 states and 3429 transitions. [2024-11-10 19:24:23,795 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 15.066666666666666) internal successors, (226), 15 states have internal predecessors, (226), 13 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 13 states have call predecessors, (14), 13 states have call successors, (14) [2024-11-10 19:24:23,795 INFO L276 IsEmpty]: Start isEmpty. Operand 3045 states and 3429 transitions. [2024-11-10 19:24:23,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2024-11-10 19:24:23,797 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 19:24:23,797 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 19:24:23,812 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Ended with exit code 0 [2024-11-10 19:24:23,997 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26,24 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 19:24:23,998 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-10 19:24:23,998 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 19:24:23,998 INFO L85 PathProgramCache]: Analyzing trace with hash -430639122, now seen corresponding path program 3 times [2024-11-10 19:24:23,998 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 19:24:23,998 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [188341195] [2024-11-10 19:24:23,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 19:24:23,998 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 19:24:24,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:24:24,159 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-10 19:24:24,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:24:24,161 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-10 19:24:24,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:24:24,161 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-10 19:24:24,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:24:24,164 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-10 19:24:24,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:24:24,167 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-11-10 19:24:24,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:24:24,168 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-11-10 19:24:24,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:24:24,171 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-11-10 19:24:24,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:24:24,173 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2024-11-10 19:24:24,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:24:24,176 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2024-11-10 19:24:24,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:24:24,195 INFO L134 CoverageAnalysis]: Checked inductivity of 457 backedges. 18 proven. 369 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-11-10 19:24:24,196 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 19:24:24,196 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [188341195] [2024-11-10 19:24:24,196 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [188341195] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 19:24:24,197 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [165325551] [2024-11-10 19:24:24,197 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-10 19:24:24,197 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 19:24:24,197 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 19:24:24,198 INFO L229 MonitoredProcess]: Starting monitored process 25 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-10 19:24:24,199 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2024-11-10 19:24:24,242 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2024-11-10 19:24:24,242 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-10 19:24:24,243 INFO L255 TraceCheckSpWp]: Trace formula consists of 177 conjuncts, 35 conjuncts are in the unsatisfiable core [2024-11-10 19:24:24,245 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 19:24:24,700 INFO L134 CoverageAnalysis]: Checked inductivity of 457 backedges. 253 proven. 80 refuted. 0 times theorem prover too weak. 124 trivial. 0 not checked. [2024-11-10 19:24:24,700 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-10 19:24:29,374 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [165325551] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 19:24:29,375 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-10 19:24:29,375 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 16] total 25 [2024-11-10 19:24:29,375 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1088748412] [2024-11-10 19:24:29,375 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-10 19:24:29,375 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2024-11-10 19:24:29,375 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 19:24:29,376 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2024-11-10 19:24:29,376 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=116, Invalid=753, Unknown=1, NotChecked=0, Total=870 [2024-11-10 19:24:29,376 INFO L87 Difference]: Start difference. First operand 3045 states and 3429 transitions. Second operand has 26 states, 25 states have (on average 9.6) internal successors, (240), 26 states have internal predecessors, (240), 11 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (14), 12 states have call predecessors, (14), 11 states have call successors, (14) [2024-11-10 19:24:32,589 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 19:24:32,589 INFO L93 Difference]: Finished difference Result 4698 states and 5302 transitions. [2024-11-10 19:24:32,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 79 states. [2024-11-10 19:24:32,590 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 25 states have (on average 9.6) internal successors, (240), 26 states have internal predecessors, (240), 11 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (14), 12 states have call predecessors, (14), 11 states have call successors, (14) Word has length 180 [2024-11-10 19:24:32,593 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 19:24:32,605 INFO L225 Difference]: With dead ends: 4698 [2024-11-10 19:24:32,606 INFO L226 Difference]: Without dead ends: 3191 [2024-11-10 19:24:32,610 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 292 GetRequests, 197 SyntacticMatches, 0 SemanticMatches, 95 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2658 ImplicationChecksByTransitivity, 6.5s TimeCoverageRelationStatistics Valid=1387, Invalid=7924, Unknown=1, NotChecked=0, Total=9312 [2024-11-10 19:24:32,611 INFO L432 NwaCegarLoop]: 24 mSDtfsCounter, 619 mSDsluCounter, 367 mSDsCounter, 0 mSdLazyCounter, 1592 mSolverCounterSat, 104 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 621 SdHoareTripleChecker+Valid, 391 SdHoareTripleChecker+Invalid, 1696 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 104 IncrementalHoareTripleChecker+Valid, 1592 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-10 19:24:32,611 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [621 Valid, 391 Invalid, 1696 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [104 Valid, 1592 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-10 19:24:32,613 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3191 states. [2024-11-10 19:24:32,778 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3191 to 3114. [2024-11-10 19:24:32,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3114 states, 2945 states have (on average 1.0730050933786077) internal successors, (3160), 2948 states have internal predecessors, (3160), 163 states have call successors, (163), 2 states have call predecessors, (163), 2 states have return successors, (163), 163 states have call predecessors, (163), 163 states have call successors, (163) [2024-11-10 19:24:32,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3114 states to 3114 states and 3486 transitions. [2024-11-10 19:24:32,784 INFO L78 Accepts]: Start accepts. Automaton has 3114 states and 3486 transitions. Word has length 180 [2024-11-10 19:24:32,785 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 19:24:32,785 INFO L471 AbstractCegarLoop]: Abstraction has 3114 states and 3486 transitions. [2024-11-10 19:24:32,785 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 25 states have (on average 9.6) internal successors, (240), 26 states have internal predecessors, (240), 11 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (14), 12 states have call predecessors, (14), 11 states have call successors, (14) [2024-11-10 19:24:32,785 INFO L276 IsEmpty]: Start isEmpty. Operand 3114 states and 3486 transitions. [2024-11-10 19:24:32,787 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2024-11-10 19:24:32,787 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 19:24:32,787 INFO L215 NwaCegarLoop]: trace histogram [9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 19:24:32,800 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Forceful destruction successful, exit code 0 [2024-11-10 19:24:32,990 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2024-11-10 19:24:32,990 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-10 19:24:32,990 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 19:24:32,990 INFO L85 PathProgramCache]: Analyzing trace with hash -34098089, now seen corresponding path program 6 times [2024-11-10 19:24:32,990 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 19:24:32,990 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [97150419] [2024-11-10 19:24:32,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 19:24:32,991 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 19:24:33,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-10 19:24:33,011 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1809165111] [2024-11-10 19:24:33,011 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-11-10 19:24:33,012 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 19:24:33,012 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 19:24:33,014 INFO L229 MonitoredProcess]: Starting monitored process 26 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-10 19:24:33,018 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2024-11-10 19:24:33,080 INFO L227 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 8 check-sat command(s) [2024-11-10 19:24:33,080 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-10 19:24:33,081 INFO L255 TraceCheckSpWp]: Trace formula consists of 268 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-11-10 19:24:33,084 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 19:24:34,065 INFO L134 CoverageAnalysis]: Checked inductivity of 584 backedges. 6 proven. 466 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-11-10 19:24:34,065 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-10 19:24:34,458 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 19:24:34,458 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [97150419] [2024-11-10 19:24:34,458 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-10 19:24:34,459 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1809165111] [2024-11-10 19:24:34,459 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1809165111] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 19:24:34,459 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-10 19:24:34,459 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2024-11-10 19:24:34,459 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [351800394] [2024-11-10 19:24:34,459 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-10 19:24:34,459 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-10 19:24:34,459 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 19:24:34,460 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-10 19:24:34,460 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=290, Unknown=0, NotChecked=0, Total=342 [2024-11-10 19:24:34,460 INFO L87 Difference]: Start difference. First operand 3114 states and 3486 transitions. Second operand has 16 states, 15 states have (on average 9.733333333333333) internal successors, (146), 16 states have internal predecessors, (146), 8 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (9), 7 states have call predecessors, (9), 8 states have call successors, (9) [2024-11-10 19:24:35,670 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 19:24:35,670 INFO L93 Difference]: Finished difference Result 3115 states and 3486 transitions. [2024-11-10 19:24:35,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-10 19:24:35,671 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 9.733333333333333) internal successors, (146), 16 states have internal predecessors, (146), 8 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (9), 7 states have call predecessors, (9), 8 states have call successors, (9) Word has length 201 [2024-11-10 19:24:35,671 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 19:24:35,678 INFO L225 Difference]: With dead ends: 3115 [2024-11-10 19:24:35,679 INFO L226 Difference]: Without dead ends: 3114 [2024-11-10 19:24:35,680 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 221 GetRequests, 198 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 73 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=96, Invalid=504, Unknown=0, NotChecked=0, Total=600 [2024-11-10 19:24:35,680 INFO L432 NwaCegarLoop]: 61 mSDtfsCounter, 63 mSDsluCounter, 490 mSDsCounter, 0 mSdLazyCounter, 1325 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 551 SdHoareTripleChecker+Invalid, 1330 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 1325 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-10 19:24:35,680 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [65 Valid, 551 Invalid, 1330 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 1325 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-10 19:24:35,682 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3114 states. [2024-11-10 19:24:35,792 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3114 to 3114. [2024-11-10 19:24:35,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3114 states, 2945 states have (on average 1.0726655348047538) internal successors, (3159), 2948 states have internal predecessors, (3159), 163 states have call successors, (163), 2 states have call predecessors, (163), 2 states have return successors, (163), 163 states have call predecessors, (163), 163 states have call successors, (163) [2024-11-10 19:24:35,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3114 states to 3114 states and 3485 transitions. [2024-11-10 19:24:35,797 INFO L78 Accepts]: Start accepts. Automaton has 3114 states and 3485 transitions. Word has length 201 [2024-11-10 19:24:35,798 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 19:24:35,798 INFO L471 AbstractCegarLoop]: Abstraction has 3114 states and 3485 transitions. [2024-11-10 19:24:35,798 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 9.733333333333333) internal successors, (146), 16 states have internal predecessors, (146), 8 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (9), 7 states have call predecessors, (9), 8 states have call successors, (9) [2024-11-10 19:24:35,798 INFO L276 IsEmpty]: Start isEmpty. Operand 3114 states and 3485 transitions. [2024-11-10 19:24:35,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2024-11-10 19:24:35,800 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 19:24:35,800 INFO L215 NwaCegarLoop]: trace histogram [9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 6, 6, 6, 6, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 19:24:35,813 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Ended with exit code 0 [2024-11-10 19:24:36,001 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2024-11-10 19:24:36,002 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-10 19:24:36,002 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 19:24:36,003 INFO L85 PathProgramCache]: Analyzing trace with hash 1330760281, now seen corresponding path program 7 times [2024-11-10 19:24:36,003 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 19:24:36,003 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [612262109] [2024-11-10 19:24:36,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 19:24:36,003 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 19:24:36,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-10 19:24:36,018 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1219880563] [2024-11-10 19:24:36,018 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-11-10 19:24:36,018 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 19:24:36,018 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 19:24:36,019 INFO L229 MonitoredProcess]: Starting monitored process 27 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-10 19:24:36,020 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Waiting until timeout for monitored process [2024-11-10 19:24:36,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:24:36,073 INFO L255 TraceCheckSpWp]: Trace formula consists of 291 conjuncts, 43 conjuncts are in the unsatisfiable core [2024-11-10 19:24:36,076 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 19:24:37,005 INFO L134 CoverageAnalysis]: Checked inductivity of 608 backedges. 21 proven. 492 refuted. 0 times theorem prover too weak. 95 trivial. 0 not checked. [2024-11-10 19:24:37,005 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-10 19:24:37,792 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 19:24:37,793 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [612262109] [2024-11-10 19:24:37,793 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-10 19:24:37,793 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1219880563] [2024-11-10 19:24:37,793 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1219880563] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 19:24:37,793 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-10 19:24:37,793 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21] total 21 [2024-11-10 19:24:37,793 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1521720298] [2024-11-10 19:24:37,793 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-10 19:24:37,794 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-11-10 19:24:37,794 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 19:24:37,795 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-11-10 19:24:37,797 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=538, Unknown=0, NotChecked=0, Total=600 [2024-11-10 19:24:37,798 INFO L87 Difference]: Start difference. First operand 3114 states and 3485 transitions. Second operand has 22 states, 21 states have (on average 7.619047619047619) internal successors, (160), 22 states have internal predecessors, (160), 9 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (10), 9 states have call predecessors, (10), 9 states have call successors, (10) [2024-11-10 19:24:39,492 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 19:24:39,492 INFO L93 Difference]: Finished difference Result 4933 states and 5562 transitions. [2024-11-10 19:24:39,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2024-11-10 19:24:39,493 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 21 states have (on average 7.619047619047619) internal successors, (160), 22 states have internal predecessors, (160), 9 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (10), 9 states have call predecessors, (10), 9 states have call successors, (10) Word has length 201 [2024-11-10 19:24:39,493 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 19:24:39,499 INFO L225 Difference]: With dead ends: 4933 [2024-11-10 19:24:39,500 INFO L226 Difference]: Without dead ends: 3335 [2024-11-10 19:24:39,502 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 223 GetRequests, 192 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=122, Invalid=934, Unknown=0, NotChecked=0, Total=1056 [2024-11-10 19:24:39,503 INFO L432 NwaCegarLoop]: 61 mSDtfsCounter, 107 mSDsluCounter, 818 mSDsCounter, 0 mSdLazyCounter, 2812 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 879 SdHoareTripleChecker+Invalid, 2823 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 2812 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-10 19:24:39,503 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [108 Valid, 879 Invalid, 2823 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 2812 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-10 19:24:39,504 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3335 states. [2024-11-10 19:24:39,603 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3335 to 3121. [2024-11-10 19:24:39,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3121 states, 2951 states have (on average 1.0725177905794645) internal successors, (3165), 2954 states have internal predecessors, (3165), 164 states have call successors, (164), 2 states have call predecessors, (164), 2 states have return successors, (164), 164 states have call predecessors, (164), 164 states have call successors, (164) [2024-11-10 19:24:39,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3121 states to 3121 states and 3493 transitions. [2024-11-10 19:24:39,610 INFO L78 Accepts]: Start accepts. Automaton has 3121 states and 3493 transitions. Word has length 201 [2024-11-10 19:24:39,611 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 19:24:39,611 INFO L471 AbstractCegarLoop]: Abstraction has 3121 states and 3493 transitions. [2024-11-10 19:24:39,611 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 21 states have (on average 7.619047619047619) internal successors, (160), 22 states have internal predecessors, (160), 9 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (10), 9 states have call predecessors, (10), 9 states have call successors, (10) [2024-11-10 19:24:39,611 INFO L276 IsEmpty]: Start isEmpty. Operand 3121 states and 3493 transitions. [2024-11-10 19:24:39,613 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2024-11-10 19:24:39,613 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 19:24:39,613 INFO L215 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 6, 6, 6, 6, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 19:24:39,626 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Forceful destruction successful, exit code 0 [2024-11-10 19:24:39,817 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,27 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 19:24:39,818 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-10 19:24:39,818 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 19:24:39,818 INFO L85 PathProgramCache]: Analyzing trace with hash 792066713, now seen corresponding path program 4 times [2024-11-10 19:24:39,818 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 19:24:39,818 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1289654983] [2024-11-10 19:24:39,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 19:24:39,819 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 19:24:39,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:24:40,112 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-10 19:24:40,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:24:40,114 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-10 19:24:40,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:24:40,115 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-10 19:24:40,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:24:40,117 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-10 19:24:40,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:24:40,119 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-11-10 19:24:40,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:24:40,121 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-11-10 19:24:40,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:24:40,122 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-11-10 19:24:40,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:24:40,124 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2024-11-10 19:24:40,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:24:40,126 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2024-11-10 19:24:40,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:24:40,167 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2024-11-10 19:24:40,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:24:40,171 INFO L134 CoverageAnalysis]: Checked inductivity of 624 backedges. 18 proven. 511 refuted. 0 times theorem prover too weak. 95 trivial. 0 not checked. [2024-11-10 19:24:40,171 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 19:24:40,171 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1289654983] [2024-11-10 19:24:40,171 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1289654983] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 19:24:40,171 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [289944385] [2024-11-10 19:24:40,171 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-10 19:24:40,171 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 19:24:40,171 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 19:24:40,174 INFO L229 MonitoredProcess]: Starting monitored process 28 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-10 19:24:40,181 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Waiting until timeout for monitored process [2024-11-10 19:24:40,232 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-10 19:24:40,233 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-10 19:24:40,234 INFO L255 TraceCheckSpWp]: Trace formula consists of 293 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-10 19:24:40,236 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 19:24:40,572 INFO L134 CoverageAnalysis]: Checked inductivity of 624 backedges. 21 proven. 508 refuted. 0 times theorem prover too weak. 95 trivial. 0 not checked. [2024-11-10 19:24:40,572 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-10 19:24:41,048 INFO L134 CoverageAnalysis]: Checked inductivity of 624 backedges. 21 proven. 508 refuted. 0 times theorem prover too weak. 95 trivial. 0 not checked. [2024-11-10 19:24:41,049 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [289944385] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-10 19:24:41,049 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-10 19:24:41,049 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13, 13] total 25 [2024-11-10 19:24:41,049 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2126818492] [2024-11-10 19:24:41,049 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-10 19:24:41,049 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2024-11-10 19:24:41,050 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 19:24:41,050 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2024-11-10 19:24:41,050 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=181, Invalid=469, Unknown=0, NotChecked=0, Total=650 [2024-11-10 19:24:41,051 INFO L87 Difference]: Start difference. First operand 3121 states and 3493 transitions. Second operand has 26 states, 25 states have (on average 13.32) internal successors, (333), 26 states have internal predecessors, (333), 18 states have call successors, (19), 1 states have call predecessors, (19), 2 states have return successors, (20), 18 states have call predecessors, (20), 18 states have call successors, (20) [2024-11-10 19:24:42,568 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 19:24:42,568 INFO L93 Difference]: Finished difference Result 6746 states and 7539 transitions. [2024-11-10 19:24:42,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2024-11-10 19:24:42,569 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 25 states have (on average 13.32) internal successors, (333), 26 states have internal predecessors, (333), 18 states have call successors, (19), 1 states have call predecessors, (19), 2 states have return successors, (20), 18 states have call predecessors, (20), 18 states have call successors, (20) Word has length 203 [2024-11-10 19:24:42,569 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 19:24:42,580 INFO L225 Difference]: With dead ends: 6746 [2024-11-10 19:24:42,580 INFO L226 Difference]: Without dead ends: 6745 [2024-11-10 19:24:42,583 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 476 GetRequests, 412 SyntacticMatches, 0 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1103 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=1355, Invalid=2935, Unknown=0, NotChecked=0, Total=4290 [2024-11-10 19:24:42,583 INFO L432 NwaCegarLoop]: 21 mSDtfsCounter, 255 mSDsluCounter, 298 mSDsCounter, 0 mSdLazyCounter, 570 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 256 SdHoareTripleChecker+Valid, 319 SdHoareTripleChecker+Invalid, 616 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 570 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-10 19:24:42,583 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [256 Valid, 319 Invalid, 616 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 570 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-10 19:24:42,586 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6745 states. [2024-11-10 19:24:42,803 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6745 to 6528. [2024-11-10 19:24:42,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6528 states, 6202 states have (on average 1.0503063527894227) internal successors, (6514), 6205 states have internal predecessors, (6514), 320 states have call successors, (320), 2 states have call predecessors, (320), 2 states have return successors, (320), 320 states have call predecessors, (320), 320 states have call successors, (320) [2024-11-10 19:24:42,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6528 states to 6528 states and 7154 transitions. [2024-11-10 19:24:42,821 INFO L78 Accepts]: Start accepts. Automaton has 6528 states and 7154 transitions. Word has length 203 [2024-11-10 19:24:42,821 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 19:24:42,821 INFO L471 AbstractCegarLoop]: Abstraction has 6528 states and 7154 transitions. [2024-11-10 19:24:42,822 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 25 states have (on average 13.32) internal successors, (333), 26 states have internal predecessors, (333), 18 states have call successors, (19), 1 states have call predecessors, (19), 2 states have return successors, (20), 18 states have call predecessors, (20), 18 states have call successors, (20) [2024-11-10 19:24:42,822 INFO L276 IsEmpty]: Start isEmpty. Operand 6528 states and 7154 transitions. [2024-11-10 19:24:42,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 217 [2024-11-10 19:24:42,825 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 19:24:42,825 INFO L215 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 19:24:42,840 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Forceful destruction successful, exit code 0 [2024-11-10 19:24:43,030 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30,28 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 19:24:43,031 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-10 19:24:43,031 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 19:24:43,031 INFO L85 PathProgramCache]: Analyzing trace with hash 1989913394, now seen corresponding path program 2 times [2024-11-10 19:24:43,031 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 19:24:43,032 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [731968401] [2024-11-10 19:24:43,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 19:24:43,032 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 19:24:43,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:24:43,196 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-10 19:24:43,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:24:43,198 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-10 19:24:43,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:24:43,199 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-10 19:24:43,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:24:43,201 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-10 19:24:43,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:24:43,203 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-11-10 19:24:43,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:24:43,205 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-11-10 19:24:43,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:24:43,206 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-11-10 19:24:43,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:24:43,207 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2024-11-10 19:24:43,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:24:43,208 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2024-11-10 19:24:43,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:24:43,210 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2024-11-10 19:24:43,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:24:43,213 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2024-11-10 19:24:43,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:24:43,216 INFO L134 CoverageAnalysis]: Checked inductivity of 800 backedges. 0 proven. 652 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2024-11-10 19:24:43,217 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 19:24:43,217 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [731968401] [2024-11-10 19:24:43,217 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [731968401] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 19:24:43,217 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [773544855] [2024-11-10 19:24:43,217 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-10 19:24:43,217 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 19:24:43,217 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 19:24:43,219 INFO L229 MonitoredProcess]: Starting monitored process 29 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-10 19:24:43,219 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Waiting until timeout for monitored process [2024-11-10 19:24:43,275 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-10 19:24:43,275 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-10 19:24:43,276 INFO L255 TraceCheckSpWp]: Trace formula consists of 329 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-10 19:24:43,278 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 19:24:43,512 INFO L134 CoverageAnalysis]: Checked inductivity of 800 backedges. 0 proven. 652 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2024-11-10 19:24:43,513 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-10 19:24:43,914 INFO L134 CoverageAnalysis]: Checked inductivity of 800 backedges. 0 proven. 652 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2024-11-10 19:24:43,915 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [773544855] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-10 19:24:43,915 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-10 19:24:43,915 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 20 [2024-11-10 19:24:43,916 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [596431592] [2024-11-10 19:24:43,916 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-10 19:24:43,917 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-11-10 19:24:43,917 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 19:24:43,918 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-11-10 19:24:43,918 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=210, Invalid=210, Unknown=0, NotChecked=0, Total=420 [2024-11-10 19:24:43,918 INFO L87 Difference]: Start difference. First operand 6528 states and 7154 transitions. Second operand has 21 states, 20 states have (on average 17.1) internal successors, (342), 21 states have internal predecessors, (342), 20 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 20 states have call predecessors, (21), 20 states have call successors, (21) [2024-11-10 19:24:44,478 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 19:24:44,478 INFO L93 Difference]: Finished difference Result 9767 states and 10824 transitions. [2024-11-10 19:24:44,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-11-10 19:24:44,479 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 20 states have (on average 17.1) internal successors, (342), 21 states have internal predecessors, (342), 20 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 20 states have call predecessors, (21), 20 states have call successors, (21) Word has length 216 [2024-11-10 19:24:44,479 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 19:24:44,496 INFO L225 Difference]: With dead ends: 9767 [2024-11-10 19:24:44,496 INFO L226 Difference]: Without dead ends: 9766 [2024-11-10 19:24:44,498 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 462 GetRequests, 443 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=210, Invalid=210, Unknown=0, NotChecked=0, Total=420 [2024-11-10 19:24:44,498 INFO L432 NwaCegarLoop]: 33 mSDtfsCounter, 373 mSDsluCounter, 384 mSDsCounter, 0 mSdLazyCounter, 225 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 373 SdHoareTripleChecker+Valid, 417 SdHoareTripleChecker+Invalid, 227 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 225 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-10 19:24:44,498 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [373 Valid, 417 Invalid, 227 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 225 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-10 19:24:44,503 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9766 states. [2024-11-10 19:24:44,840 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9766 to 9748. [2024-11-10 19:24:44,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9748 states, 9252 states have (on average 1.059662775616083) internal successors, (9804), 9255 states have internal predecessors, (9804), 490 states have call successors, (490), 2 states have call predecessors, (490), 2 states have return successors, (490), 490 states have call predecessors, (490), 490 states have call successors, (490) [2024-11-10 19:24:44,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9748 states to 9748 states and 10784 transitions. [2024-11-10 19:24:44,865 INFO L78 Accepts]: Start accepts. Automaton has 9748 states and 10784 transitions. Word has length 216 [2024-11-10 19:24:44,865 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 19:24:44,865 INFO L471 AbstractCegarLoop]: Abstraction has 9748 states and 10784 transitions. [2024-11-10 19:24:44,866 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 20 states have (on average 17.1) internal successors, (342), 21 states have internal predecessors, (342), 20 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 20 states have call predecessors, (21), 20 states have call successors, (21) [2024-11-10 19:24:44,866 INFO L276 IsEmpty]: Start isEmpty. Operand 9748 states and 10784 transitions. [2024-11-10 19:24:44,868 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 225 [2024-11-10 19:24:44,869 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 19:24:44,869 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 6, 6, 6, 6, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 19:24:44,881 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Ended with exit code 0 [2024-11-10 19:24:45,072 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31,29 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 19:24:45,073 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-10 19:24:45,073 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 19:24:45,073 INFO L85 PathProgramCache]: Analyzing trace with hash -1568695668, now seen corresponding path program 8 times [2024-11-10 19:24:45,073 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 19:24:45,073 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [89431216] [2024-11-10 19:24:45,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 19:24:45,074 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 19:24:45,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-10 19:24:45,088 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [655522755] [2024-11-10 19:24:45,088 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-10 19:24:45,089 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 19:24:45,089 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 19:24:45,090 INFO L229 MonitoredProcess]: Starting monitored process 30 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-10 19:24:45,095 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Waiting until timeout for monitored process [2024-11-10 19:24:45,149 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-10 19:24:45,150 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-10 19:24:45,151 INFO L255 TraceCheckSpWp]: Trace formula consists of 323 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-10 19:24:45,153 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 19:24:45,664 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 522 refuted. 0 times theorem prover too weak. 238 trivial. 0 not checked. [2024-11-10 19:24:45,665 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-10 19:24:46,320 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 19:24:46,321 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [89431216] [2024-11-10 19:24:46,321 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-10 19:24:46,321 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [655522755] [2024-11-10 19:24:46,321 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [655522755] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 19:24:46,322 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-10 19:24:46,322 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2024-11-10 19:24:46,322 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [37240363] [2024-11-10 19:24:46,322 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-10 19:24:46,322 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-10 19:24:46,322 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 19:24:46,323 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-10 19:24:46,323 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=132, Unknown=0, NotChecked=0, Total=182 [2024-11-10 19:24:46,323 INFO L87 Difference]: Start difference. First operand 9748 states and 10784 transitions. Second operand has 9 states, 8 states have (on average 14.625) internal successors, (117), 9 states have internal predecessors, (117), 6 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 6 states have call predecessors, (7), 6 states have call successors, (7) [2024-11-10 19:24:46,964 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 19:24:46,964 INFO L93 Difference]: Finished difference Result 11109 states and 12266 transitions. [2024-11-10 19:24:46,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-10 19:24:46,965 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 14.625) internal successors, (117), 9 states have internal predecessors, (117), 6 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 6 states have call predecessors, (7), 6 states have call successors, (7) Word has length 224 [2024-11-10 19:24:46,965 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 19:24:46,983 INFO L225 Difference]: With dead ends: 11109 [2024-11-10 19:24:46,983 INFO L226 Difference]: Without dead ends: 11108 [2024-11-10 19:24:46,986 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 376 GetRequests, 364 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=50, Invalid=132, Unknown=0, NotChecked=0, Total=182 [2024-11-10 19:24:46,987 INFO L432 NwaCegarLoop]: 76 mSDtfsCounter, 24 mSDsluCounter, 361 mSDsCounter, 0 mSdLazyCounter, 482 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 437 SdHoareTripleChecker+Invalid, 482 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 482 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-10 19:24:46,987 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 437 Invalid, 482 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 482 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-10 19:24:46,994 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11108 states. [2024-11-10 19:24:47,426 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11108 to 10706. [2024-11-10 19:24:47,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10706 states, 10163 states have (on average 1.057266555151038) internal successors, (10745), 10166 states have internal predecessors, (10745), 537 states have call successors, (537), 2 states have call predecessors, (537), 2 states have return successors, (537), 537 states have call predecessors, (537), 537 states have call successors, (537) [2024-11-10 19:24:47,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10706 states to 10706 states and 11819 transitions. [2024-11-10 19:24:47,449 INFO L78 Accepts]: Start accepts. Automaton has 10706 states and 11819 transitions. Word has length 224 [2024-11-10 19:24:47,449 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 19:24:47,449 INFO L471 AbstractCegarLoop]: Abstraction has 10706 states and 11819 transitions. [2024-11-10 19:24:47,449 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 14.625) internal successors, (117), 9 states have internal predecessors, (117), 6 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 6 states have call predecessors, (7), 6 states have call successors, (7) [2024-11-10 19:24:47,449 INFO L276 IsEmpty]: Start isEmpty. Operand 10706 states and 11819 transitions. [2024-11-10 19:24:47,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 225 [2024-11-10 19:24:47,453 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 19:24:47,453 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 7, 7, 7, 7, 7, 7, 7, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 19:24:47,466 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Forceful destruction successful, exit code 0 [2024-11-10 19:24:47,653 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32,30 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 19:24:47,654 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-10 19:24:47,654 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 19:24:47,654 INFO L85 PathProgramCache]: Analyzing trace with hash 1477839595, now seen corresponding path program 9 times [2024-11-10 19:24:47,654 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 19:24:47,654 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1092284227] [2024-11-10 19:24:47,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 19:24:47,654 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 19:24:47,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:24:47,884 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-10 19:24:47,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:24:47,885 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-10 19:24:47,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:24:47,886 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-10 19:24:47,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:24:47,888 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-10 19:24:47,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:24:47,891 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-11-10 19:24:47,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:24:47,892 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-11-10 19:24:47,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:24:47,893 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-11-10 19:24:47,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:24:47,895 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2024-11-10 19:24:47,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:24:47,897 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2024-11-10 19:24:47,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:24:47,898 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2024-11-10 19:24:47,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:24:47,901 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2024-11-10 19:24:47,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:24:47,903 INFO L134 CoverageAnalysis]: Checked inductivity of 784 backedges. 163 proven. 473 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2024-11-10 19:24:47,903 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 19:24:47,903 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1092284227] [2024-11-10 19:24:47,903 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1092284227] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 19:24:47,903 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1420592489] [2024-11-10 19:24:47,903 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-10 19:24:47,903 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 19:24:47,903 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 19:24:47,905 INFO L229 MonitoredProcess]: Starting monitored process 31 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-10 19:24:47,906 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Waiting until timeout for monitored process [2024-11-10 19:24:47,954 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2024-11-10 19:24:47,954 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-10 19:24:47,955 INFO L255 TraceCheckSpWp]: Trace formula consists of 204 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-10 19:24:47,957 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 19:24:48,350 INFO L134 CoverageAnalysis]: Checked inductivity of 784 backedges. 0 proven. 470 refuted. 0 times theorem prover too weak. 314 trivial. 0 not checked. [2024-11-10 19:24:48,350 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-10 19:24:48,749 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1420592489] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 19:24:48,749 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-10 19:24:48,749 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 8] total 19 [2024-11-10 19:24:48,749 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [414594192] [2024-11-10 19:24:48,750 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-10 19:24:48,750 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-10 19:24:48,750 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 19:24:48,750 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-10 19:24:48,751 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=390, Unknown=0, NotChecked=0, Total=462 [2024-11-10 19:24:48,751 INFO L87 Difference]: Start difference. First operand 10706 states and 11819 transitions. Second operand has 19 states, 19 states have (on average 14.578947368421053) internal successors, (277), 19 states have internal predecessors, (277), 15 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 15 states have call predecessors, (16), 15 states have call successors, (16) [2024-11-10 19:24:50,740 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 19:24:50,740 INFO L93 Difference]: Finished difference Result 18612 states and 20779 transitions. [2024-11-10 19:24:50,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2024-11-10 19:24:50,740 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 14.578947368421053) internal successors, (277), 19 states have internal predecessors, (277), 15 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 15 states have call predecessors, (16), 15 states have call successors, (16) Word has length 224 [2024-11-10 19:24:50,741 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 19:24:50,762 INFO L225 Difference]: With dead ends: 18612 [2024-11-10 19:24:50,763 INFO L226 Difference]: Without dead ends: 14141 [2024-11-10 19:24:50,770 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 299 GetRequests, 252 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 602 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=313, Invalid=2039, Unknown=0, NotChecked=0, Total=2352 [2024-11-10 19:24:50,771 INFO L432 NwaCegarLoop]: 135 mSDtfsCounter, 354 mSDsluCounter, 1083 mSDsCounter, 0 mSdLazyCounter, 2196 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 354 SdHoareTripleChecker+Valid, 1218 SdHoareTripleChecker+Invalid, 2223 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 2196 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-10 19:24:50,771 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [354 Valid, 1218 Invalid, 2223 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 2196 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-10 19:24:50,778 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14141 states. [2024-11-10 19:24:51,195 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14141 to 11950. [2024-11-10 19:24:51,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11950 states, 11340 states have (on average 1.053968253968254) internal successors, (11952), 11343 states have internal predecessors, (11952), 604 states have call successors, (604), 2 states have call predecessors, (604), 2 states have return successors, (604), 604 states have call predecessors, (604), 604 states have call successors, (604) [2024-11-10 19:24:51,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11950 states to 11950 states and 13160 transitions. [2024-11-10 19:24:51,224 INFO L78 Accepts]: Start accepts. Automaton has 11950 states and 13160 transitions. Word has length 224 [2024-11-10 19:24:51,224 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 19:24:51,224 INFO L471 AbstractCegarLoop]: Abstraction has 11950 states and 13160 transitions. [2024-11-10 19:24:51,225 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 14.578947368421053) internal successors, (277), 19 states have internal predecessors, (277), 15 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 15 states have call predecessors, (16), 15 states have call successors, (16) [2024-11-10 19:24:51,225 INFO L276 IsEmpty]: Start isEmpty. Operand 11950 states and 13160 transitions. [2024-11-10 19:24:51,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 248 [2024-11-10 19:24:51,227 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 19:24:51,228 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 19:24:51,240 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Forceful destruction successful, exit code 0 [2024-11-10 19:24:51,431 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 31 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable33 [2024-11-10 19:24:51,432 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-10 19:24:51,432 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 19:24:51,432 INFO L85 PathProgramCache]: Analyzing trace with hash -1354313578, now seen corresponding path program 10 times [2024-11-10 19:24:51,432 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 19:24:51,432 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [205662946] [2024-11-10 19:24:51,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 19:24:51,433 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 19:24:51,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-10 19:24:51,452 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [901241022] [2024-11-10 19:24:51,452 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-10 19:24:51,452 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 19:24:51,453 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 19:24:51,454 INFO L229 MonitoredProcess]: Starting monitored process 32 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-10 19:24:51,455 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Waiting until timeout for monitored process [2024-11-10 19:24:51,518 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-10 19:24:51,518 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-10 19:24:51,520 INFO L255 TraceCheckSpWp]: Trace formula consists of 358 conjuncts, 40 conjuncts are in the unsatisfiable core [2024-11-10 19:24:51,523 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 19:24:53,956 INFO L134 CoverageAnalysis]: Checked inductivity of 929 backedges. 27 proven. 748 refuted. 0 times theorem prover too weak. 154 trivial. 0 not checked. [2024-11-10 19:24:53,956 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-10 19:24:58,636 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 19:24:58,636 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [205662946] [2024-11-10 19:24:58,636 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-10 19:24:58,636 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [901241022] [2024-11-10 19:24:58,637 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [901241022] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 19:24:58,637 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-10 19:24:58,637 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [32] total 32 [2024-11-10 19:24:58,637 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [157196605] [2024-11-10 19:24:58,637 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-10 19:24:58,637 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2024-11-10 19:24:58,637 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 19:24:58,638 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2024-11-10 19:24:58,638 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=253, Invalid=1152, Unknown=1, NotChecked=0, Total=1406 [2024-11-10 19:24:58,638 INFO L87 Difference]: Start difference. First operand 11950 states and 13160 transitions. Second operand has 33 states, 31 states have (on average 6.419354838709677) internal successors, (199), 31 states have internal predecessors, (199), 12 states have call successors, (12), 1 states have call predecessors, (12), 3 states have return successors, (12), 11 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-10 19:25:00,845 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 19:25:00,845 INFO L93 Difference]: Finished difference Result 11951 states and 13160 transitions. [2024-11-10 19:25:00,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2024-11-10 19:25:00,846 INFO L78 Accepts]: Start accepts. Automaton has has 33 states, 31 states have (on average 6.419354838709677) internal successors, (199), 31 states have internal predecessors, (199), 12 states have call successors, (12), 1 states have call predecessors, (12), 3 states have return successors, (12), 11 states have call predecessors, (12), 12 states have call successors, (12) Word has length 247 [2024-11-10 19:25:00,846 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 19:25:00,862 INFO L225 Difference]: With dead ends: 11951 [2024-11-10 19:25:00,862 INFO L226 Difference]: Without dead ends: 11950 [2024-11-10 19:25:00,866 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 293 GetRequests, 225 SyntacticMatches, 0 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1343 ImplicationChecksByTransitivity, 6.0s TimeCoverageRelationStatistics Valid=1012, Invalid=3817, Unknown=1, NotChecked=0, Total=4830 [2024-11-10 19:25:00,866 INFO L432 NwaCegarLoop]: 37 mSDtfsCounter, 166 mSDsluCounter, 428 mSDsCounter, 0 mSdLazyCounter, 1463 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 167 SdHoareTripleChecker+Valid, 465 SdHoareTripleChecker+Invalid, 1471 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 1463 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-10 19:25:00,866 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [167 Valid, 465 Invalid, 1471 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 1463 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-10 19:25:00,870 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11950 states. [2024-11-10 19:25:01,244 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11950 to 11950. [2024-11-10 19:25:01,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11950 states, 11340 states have (on average 1.0538800705467373) internal successors, (11951), 11343 states have internal predecessors, (11951), 604 states have call successors, (604), 2 states have call predecessors, (604), 2 states have return successors, (604), 604 states have call predecessors, (604), 604 states have call successors, (604) [2024-11-10 19:25:01,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11950 states to 11950 states and 13159 transitions. [2024-11-10 19:25:01,264 INFO L78 Accepts]: Start accepts. Automaton has 11950 states and 13159 transitions. Word has length 247 [2024-11-10 19:25:01,264 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 19:25:01,264 INFO L471 AbstractCegarLoop]: Abstraction has 11950 states and 13159 transitions. [2024-11-10 19:25:01,264 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 31 states have (on average 6.419354838709677) internal successors, (199), 31 states have internal predecessors, (199), 12 states have call successors, (12), 1 states have call predecessors, (12), 3 states have return successors, (12), 11 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-10 19:25:01,264 INFO L276 IsEmpty]: Start isEmpty. Operand 11950 states and 13159 transitions. [2024-11-10 19:25:01,267 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 248 [2024-11-10 19:25:01,267 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 19:25:01,267 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 8, 8, 8, 8, 8, 8, 8, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 19:25:01,280 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Ended with exit code 0 [2024-11-10 19:25:01,467 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34,32 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 19:25:01,468 INFO L396 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-10 19:25:01,468 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 19:25:01,468 INFO L85 PathProgramCache]: Analyzing trace with hash 1246108987, now seen corresponding path program 11 times [2024-11-10 19:25:01,469 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 19:25:01,469 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1511181839] [2024-11-10 19:25:01,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 19:25:01,469 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 19:25:01,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-10 19:25:01,489 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [671766435] [2024-11-10 19:25:01,489 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-10 19:25:01,489 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 19:25:01,489 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 19:25:01,490 INFO L229 MonitoredProcess]: Starting monitored process 33 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-10 19:25:01,493 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Waiting until timeout for monitored process [2024-11-10 19:25:01,564 INFO L227 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 11 check-sat command(s) [2024-11-10 19:25:01,565 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-10 19:25:01,566 INFO L255 TraceCheckSpWp]: Trace formula consists of 349 conjuncts, 41 conjuncts are in the unsatisfiable core [2024-11-10 19:25:01,569 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 19:25:02,502 INFO L134 CoverageAnalysis]: Checked inductivity of 983 backedges. 15 proven. 811 refuted. 0 times theorem prover too weak. 157 trivial. 0 not checked. [2024-11-10 19:25:02,502 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-10 19:25:02,878 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 19:25:02,878 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1511181839] [2024-11-10 19:25:02,878 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-10 19:25:02,878 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [671766435] [2024-11-10 19:25:02,878 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [671766435] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 19:25:02,878 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-10 19:25:02,878 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22] total 22 [2024-11-10 19:25:02,878 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1027714600] [2024-11-10 19:25:02,879 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-10 19:25:02,879 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-10 19:25:02,879 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 19:25:02,879 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-10 19:25:02,880 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=560, Unknown=0, NotChecked=0, Total=650 [2024-11-10 19:25:02,880 INFO L87 Difference]: Start difference. First operand 11950 states and 13159 transitions. Second operand has 23 states, 22 states have (on average 8.909090909090908) internal successors, (196), 23 states have internal predecessors, (196), 11 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 11 states have call predecessors, (12), 11 states have call successors, (12) [2024-11-10 19:25:04,653 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 19:25:04,653 INFO L93 Difference]: Finished difference Result 15959 states and 17696 transitions. [2024-11-10 19:25:04,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-11-10 19:25:04,654 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 22 states have (on average 8.909090909090908) internal successors, (196), 23 states have internal predecessors, (196), 11 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 11 states have call predecessors, (12), 11 states have call successors, (12) Word has length 247 [2024-11-10 19:25:04,654 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 19:25:04,684 INFO L225 Difference]: With dead ends: 15959 [2024-11-10 19:25:04,684 INFO L226 Difference]: Without dead ends: 11923 [2024-11-10 19:25:04,700 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 262 GetRequests, 237 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 77 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=99, Invalid=603, Unknown=0, NotChecked=0, Total=702 [2024-11-10 19:25:04,702 INFO L432 NwaCegarLoop]: 85 mSDtfsCounter, 28 mSDsluCounter, 879 mSDsCounter, 0 mSdLazyCounter, 2702 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 964 SdHoareTripleChecker+Invalid, 2703 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 2702 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-10 19:25:04,702 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 964 Invalid, 2703 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 2702 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-10 19:25:04,708 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11923 states. [2024-11-10 19:25:05,214 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11923 to 11837. [2024-11-10 19:25:05,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11837 states, 11233 states have (on average 1.0536811181340693) internal successors, (11836), 11236 states have internal predecessors, (11836), 598 states have call successors, (598), 2 states have call predecessors, (598), 2 states have return successors, (598), 598 states have call predecessors, (598), 598 states have call successors, (598) [2024-11-10 19:25:05,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11837 states to 11837 states and 13032 transitions. [2024-11-10 19:25:05,237 INFO L78 Accepts]: Start accepts. Automaton has 11837 states and 13032 transitions. Word has length 247 [2024-11-10 19:25:05,237 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 19:25:05,237 INFO L471 AbstractCegarLoop]: Abstraction has 11837 states and 13032 transitions. [2024-11-10 19:25:05,237 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 22 states have (on average 8.909090909090908) internal successors, (196), 23 states have internal predecessors, (196), 11 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 11 states have call predecessors, (12), 11 states have call successors, (12) [2024-11-10 19:25:05,237 INFO L276 IsEmpty]: Start isEmpty. Operand 11837 states and 13032 transitions. [2024-11-10 19:25:05,240 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 260 [2024-11-10 19:25:05,240 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 19:25:05,241 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 19:25:05,254 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Forceful destruction successful, exit code 0 [2024-11-10 19:25:05,445 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35,33 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 19:25:05,446 INFO L396 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-10 19:25:05,446 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 19:25:05,446 INFO L85 PathProgramCache]: Analyzing trace with hash 735000462, now seen corresponding path program 2 times [2024-11-10 19:25:05,446 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 19:25:05,446 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1412710837] [2024-11-10 19:25:05,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 19:25:05,447 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 19:25:05,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:25:05,635 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-10 19:25:05,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:25:05,637 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-10 19:25:05,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:25:05,639 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-10 19:25:05,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:25:05,640 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-10 19:25:05,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:25:05,641 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-11-10 19:25:05,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:25:05,644 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-11-10 19:25:05,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:25:05,645 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-11-10 19:25:05,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:25:05,647 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2024-11-10 19:25:05,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:25:05,648 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2024-11-10 19:25:05,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:25:05,650 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2024-11-10 19:25:05,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:25:05,651 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2024-11-10 19:25:05,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:25:05,652 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2024-11-10 19:25:05,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:25:05,654 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 251 [2024-11-10 19:25:05,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:25:05,656 INFO L134 CoverageAnalysis]: Checked inductivity of 1199 backedges. 0 proven. 975 refuted. 0 times theorem prover too weak. 224 trivial. 0 not checked. [2024-11-10 19:25:05,656 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 19:25:05,656 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1412710837] [2024-11-10 19:25:05,656 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1412710837] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 19:25:05,656 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [525367631] [2024-11-10 19:25:05,656 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-10 19:25:05,656 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 19:25:05,656 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 19:25:05,658 INFO L229 MonitoredProcess]: Starting monitored process 34 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-10 19:25:05,666 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Waiting until timeout for monitored process [2024-11-10 19:25:05,717 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-10 19:25:05,717 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-10 19:25:05,720 INFO L255 TraceCheckSpWp]: Trace formula consists of 359 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-10 19:25:05,724 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 19:25:05,942 INFO L134 CoverageAnalysis]: Checked inductivity of 1199 backedges. 0 proven. 975 refuted. 0 times theorem prover too weak. 224 trivial. 0 not checked. [2024-11-10 19:25:05,942 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-10 19:25:06,382 INFO L134 CoverageAnalysis]: Checked inductivity of 1199 backedges. 0 proven. 975 refuted. 0 times theorem prover too weak. 224 trivial. 0 not checked. [2024-11-10 19:25:06,382 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [525367631] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-10 19:25:06,382 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-10 19:25:06,382 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 24 [2024-11-10 19:25:06,382 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1846466597] [2024-11-10 19:25:06,382 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-10 19:25:06,383 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2024-11-10 19:25:06,383 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 19:25:06,384 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2024-11-10 19:25:06,384 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=300, Invalid=300, Unknown=0, NotChecked=0, Total=600 [2024-11-10 19:25:06,384 INFO L87 Difference]: Start difference. First operand 11837 states and 13032 transitions. Second operand has 25 states, 24 states have (on average 17.0) internal successors, (408), 25 states have internal predecessors, (408), 24 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 24 states have call predecessors, (25), 24 states have call successors, (25) [2024-11-10 19:25:07,179 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 19:25:07,179 INFO L93 Difference]: Finished difference Result 16657 states and 18855 transitions. [2024-11-10 19:25:07,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2024-11-10 19:25:07,180 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 24 states have (on average 17.0) internal successors, (408), 25 states have internal predecessors, (408), 24 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 24 states have call predecessors, (25), 24 states have call successors, (25) Word has length 259 [2024-11-10 19:25:07,180 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 19:25:07,199 INFO L225 Difference]: With dead ends: 16657 [2024-11-10 19:25:07,199 INFO L226 Difference]: Without dead ends: 16656 [2024-11-10 19:25:07,204 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 554 GetRequests, 531 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=300, Invalid=300, Unknown=0, NotChecked=0, Total=600 [2024-11-10 19:25:07,205 INFO L432 NwaCegarLoop]: 32 mSDtfsCounter, 27 mSDsluCounter, 230 mSDsCounter, 0 mSdLazyCounter, 276 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 262 SdHoareTripleChecker+Invalid, 282 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 276 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-10 19:25:07,205 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 262 Invalid, 282 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 276 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-10 19:25:07,210 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16656 states. [2024-11-10 19:25:07,772 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16656 to 16656. [2024-11-10 19:25:07,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16656 states, 15797 states have (on average 1.0688738368044566) internal successors, (16885), 15800 states have internal predecessors, (16885), 853 states have call successors, (853), 2 states have call predecessors, (853), 2 states have return successors, (853), 853 states have call predecessors, (853), 853 states have call successors, (853) [2024-11-10 19:25:07,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16656 states to 16656 states and 18591 transitions. [2024-11-10 19:25:07,804 INFO L78 Accepts]: Start accepts. Automaton has 16656 states and 18591 transitions. Word has length 259 [2024-11-10 19:25:07,804 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 19:25:07,805 INFO L471 AbstractCegarLoop]: Abstraction has 16656 states and 18591 transitions. [2024-11-10 19:25:07,805 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 24 states have (on average 17.0) internal successors, (408), 25 states have internal predecessors, (408), 24 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 24 states have call predecessors, (25), 24 states have call successors, (25) [2024-11-10 19:25:07,805 INFO L276 IsEmpty]: Start isEmpty. Operand 16656 states and 18591 transitions. [2024-11-10 19:25:07,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 271 [2024-11-10 19:25:07,808 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 19:25:07,809 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 9, 9, 9, 9, 9, 9, 9, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 19:25:07,821 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Ended with exit code 0 [2024-11-10 19:25:08,012 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 34 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable36 [2024-11-10 19:25:08,013 INFO L396 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-10 19:25:08,013 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 19:25:08,013 INFO L85 PathProgramCache]: Analyzing trace with hash 625225293, now seen corresponding path program 12 times [2024-11-10 19:25:08,013 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 19:25:08,013 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1673158542] [2024-11-10 19:25:08,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 19:25:08,014 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 19:25:08,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:25:08,254 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-10 19:25:08,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:25:08,256 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-10 19:25:08,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:25:08,258 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-10 19:25:08,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:25:08,260 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-10 19:25:08,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:25:08,262 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-11-10 19:25:08,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:25:08,264 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-11-10 19:25:08,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:25:08,266 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-11-10 19:25:08,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:25:08,267 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2024-11-10 19:25:08,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:25:08,269 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2024-11-10 19:25:08,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:25:08,272 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2024-11-10 19:25:08,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:25:08,274 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2024-11-10 19:25:08,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:25:08,276 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2024-11-10 19:25:08,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:25:08,278 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 251 [2024-11-10 19:25:08,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:25:08,280 INFO L134 CoverageAnalysis]: Checked inductivity of 1205 backedges. 244 proven. 737 refuted. 0 times theorem prover too weak. 224 trivial. 0 not checked. [2024-11-10 19:25:08,280 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 19:25:08,280 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1673158542] [2024-11-10 19:25:08,280 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1673158542] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 19:25:08,280 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1988485940] [2024-11-10 19:25:08,280 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-11-10 19:25:08,281 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 19:25:08,281 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 19:25:08,283 INFO L229 MonitoredProcess]: Starting monitored process 35 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-10 19:25:08,287 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Waiting until timeout for monitored process [2024-11-10 19:25:08,417 INFO L227 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 12 check-sat command(s) [2024-11-10 19:25:08,417 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-10 19:25:08,418 INFO L255 TraceCheckSpWp]: Trace formula consists of 378 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-10 19:25:08,420 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 19:25:08,880 INFO L134 CoverageAnalysis]: Checked inductivity of 1205 backedges. 305 proven. 676 refuted. 0 times theorem prover too weak. 224 trivial. 0 not checked. [2024-11-10 19:25:08,880 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-10 19:25:09,272 INFO L134 CoverageAnalysis]: Checked inductivity of 1205 backedges. 305 proven. 676 refuted. 0 times theorem prover too weak. 224 trivial. 0 not checked. [2024-11-10 19:25:09,272 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1988485940] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-10 19:25:09,273 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-10 19:25:09,273 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14, 14] total 21 [2024-11-10 19:25:09,273 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1135766927] [2024-11-10 19:25:09,273 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-10 19:25:09,273 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-11-10 19:25:09,274 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 19:25:09,274 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-11-10 19:25:09,274 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=108, Invalid=312, Unknown=0, NotChecked=0, Total=420 [2024-11-10 19:25:09,275 INFO L87 Difference]: Start difference. First operand 16656 states and 18591 transitions. Second operand has 21 states, 21 states have (on average 15.904761904761905) internal successors, (334), 21 states have internal predecessors, (334), 19 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 19 states have call predecessors, (20), 19 states have call successors, (20) [2024-11-10 19:25:10,795 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 19:25:10,796 INFO L93 Difference]: Finished difference Result 32071 states and 36260 transitions. [2024-11-10 19:25:10,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-10 19:25:10,796 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 15.904761904761905) internal successors, (334), 21 states have internal predecessors, (334), 19 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 19 states have call predecessors, (20), 19 states have call successors, (20) Word has length 270 [2024-11-10 19:25:10,797 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 19:25:10,828 INFO L225 Difference]: With dead ends: 32071 [2024-11-10 19:25:10,828 INFO L226 Difference]: Without dead ends: 24213 [2024-11-10 19:25:10,839 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 583 GetRequests, 548 SyntacticMatches, 11 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 283 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=163, Invalid=487, Unknown=0, NotChecked=0, Total=650 [2024-11-10 19:25:10,840 INFO L432 NwaCegarLoop]: 130 mSDtfsCounter, 35 mSDsluCounter, 636 mSDsCounter, 0 mSdLazyCounter, 1173 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 766 SdHoareTripleChecker+Invalid, 1176 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1173 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-10 19:25:10,840 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 766 Invalid, 1176 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1173 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-10 19:25:10,849 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24213 states. [2024-11-10 19:25:11,526 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24213 to 18173. [2024-11-10 19:25:11,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18173 states, 17235 states have (on average 1.0669567740063823) internal successors, (18389), 17238 states have internal predecessors, (18389), 932 states have call successors, (932), 2 states have call predecessors, (932), 2 states have return successors, (932), 932 states have call predecessors, (932), 932 states have call successors, (932) [2024-11-10 19:25:11,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18173 states to 18173 states and 20253 transitions. [2024-11-10 19:25:11,560 INFO L78 Accepts]: Start accepts. Automaton has 18173 states and 20253 transitions. Word has length 270 [2024-11-10 19:25:11,560 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 19:25:11,560 INFO L471 AbstractCegarLoop]: Abstraction has 18173 states and 20253 transitions. [2024-11-10 19:25:11,561 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 15.904761904761905) internal successors, (334), 21 states have internal predecessors, (334), 19 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 19 states have call predecessors, (20), 19 states have call successors, (20) [2024-11-10 19:25:11,561 INFO L276 IsEmpty]: Start isEmpty. Operand 18173 states and 20253 transitions. [2024-11-10 19:25:11,564 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 294 [2024-11-10 19:25:11,565 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 19:25:11,565 INFO L215 NwaCegarLoop]: trace histogram [13, 13, 13, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 19:25:11,577 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Ended with exit code 0 [2024-11-10 19:25:11,768 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 35 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable37 [2024-11-10 19:25:11,769 INFO L396 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-10 19:25:11,769 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 19:25:11,769 INFO L85 PathProgramCache]: Analyzing trace with hash -1282124139, now seen corresponding path program 13 times [2024-11-10 19:25:11,769 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 19:25:11,769 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1400291392] [2024-11-10 19:25:11,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 19:25:11,769 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 19:25:11,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-10 19:25:11,793 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1682118851] [2024-11-10 19:25:11,794 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-11-10 19:25:11,794 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 19:25:11,794 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 19:25:11,796 INFO L229 MonitoredProcess]: Starting monitored process 36 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-10 19:25:11,799 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Waiting until timeout for monitored process [2024-11-10 19:25:11,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:25:11,875 INFO L255 TraceCheckSpWp]: Trace formula consists of 419 conjuncts, 41 conjuncts are in the unsatisfiable core [2024-11-10 19:25:11,878 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 19:25:14,576 INFO L134 CoverageAnalysis]: Checked inductivity of 1354 backedges. 33 proven. 1089 refuted. 0 times theorem prover too weak. 232 trivial. 0 not checked. [2024-11-10 19:25:14,576 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-10 19:25:15,365 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 19:25:15,366 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1400291392] [2024-11-10 19:25:15,366 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-10 19:25:15,366 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1682118851] [2024-11-10 19:25:15,366 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1682118851] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 19:25:15,366 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-10 19:25:15,366 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [36] total 36 [2024-11-10 19:25:15,366 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [855293418] [2024-11-10 19:25:15,366 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-10 19:25:15,367 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 37 states [2024-11-10 19:25:15,367 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 19:25:15,367 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2024-11-10 19:25:15,368 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=327, Invalid=1395, Unknown=0, NotChecked=0, Total=1722 [2024-11-10 19:25:15,368 INFO L87 Difference]: Start difference. First operand 18173 states and 20253 transitions. Second operand has 37 states, 35 states have (on average 6.714285714285714) internal successors, (235), 35 states have internal predecessors, (235), 14 states have call successors, (14), 1 states have call predecessors, (14), 3 states have return successors, (14), 13 states have call predecessors, (14), 14 states have call successors, (14) [2024-11-10 19:25:18,947 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 19:25:18,947 INFO L93 Difference]: Finished difference Result 18174 states and 20253 transitions. [2024-11-10 19:25:18,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 58 states. [2024-11-10 19:25:18,948 INFO L78 Accepts]: Start accepts. Automaton has has 37 states, 35 states have (on average 6.714285714285714) internal successors, (235), 35 states have internal predecessors, (235), 14 states have call successors, (14), 1 states have call predecessors, (14), 3 states have return successors, (14), 13 states have call predecessors, (14), 14 states have call successors, (14) Word has length 293 [2024-11-10 19:25:18,948 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 19:25:18,970 INFO L225 Difference]: With dead ends: 18174 [2024-11-10 19:25:18,970 INFO L226 Difference]: Without dead ends: 18173 [2024-11-10 19:25:18,976 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 348 GetRequests, 267 SyntacticMatches, 0 SemanticMatches, 81 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2047 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=1393, Invalid=5413, Unknown=0, NotChecked=0, Total=6806 [2024-11-10 19:25:18,977 INFO L432 NwaCegarLoop]: 37 mSDtfsCounter, 221 mSDsluCounter, 373 mSDsCounter, 0 mSdLazyCounter, 1325 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 222 SdHoareTripleChecker+Valid, 410 SdHoareTripleChecker+Invalid, 1336 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 1325 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-10 19:25:18,977 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [222 Valid, 410 Invalid, 1336 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 1325 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-10 19:25:18,983 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18173 states. [2024-11-10 19:25:19,571 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18173 to 18173. [2024-11-10 19:25:19,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18173 states, 17235 states have (on average 1.0668987525384392) internal successors, (18388), 17238 states have internal predecessors, (18388), 932 states have call successors, (932), 2 states have call predecessors, (932), 2 states have return successors, (932), 932 states have call predecessors, (932), 932 states have call successors, (932) [2024-11-10 19:25:19,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18173 states to 18173 states and 20252 transitions. [2024-11-10 19:25:19,605 INFO L78 Accepts]: Start accepts. Automaton has 18173 states and 20252 transitions. Word has length 293 [2024-11-10 19:25:19,605 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 19:25:19,605 INFO L471 AbstractCegarLoop]: Abstraction has 18173 states and 20252 transitions. [2024-11-10 19:25:19,605 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 37 states, 35 states have (on average 6.714285714285714) internal successors, (235), 35 states have internal predecessors, (235), 14 states have call successors, (14), 1 states have call predecessors, (14), 3 states have return successors, (14), 13 states have call predecessors, (14), 14 states have call successors, (14) [2024-11-10 19:25:19,606 INFO L276 IsEmpty]: Start isEmpty. Operand 18173 states and 20252 transitions. [2024-11-10 19:25:19,610 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 294 [2024-11-10 19:25:19,610 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 19:25:19,610 INFO L215 NwaCegarLoop]: trace histogram [13, 13, 13, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 8, 8, 8, 8, 8, 8, 8, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 19:25:19,623 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Forceful destruction successful, exit code 0 [2024-11-10 19:25:19,810 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 36 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable38 [2024-11-10 19:25:19,811 INFO L396 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-10 19:25:19,811 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 19:25:19,811 INFO L85 PathProgramCache]: Analyzing trace with hash -1842478565, now seen corresponding path program 14 times [2024-11-10 19:25:19,811 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 19:25:19,811 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [655605214] [2024-11-10 19:25:19,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 19:25:19,812 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 19:25:19,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-10 19:25:19,833 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1913215356] [2024-11-10 19:25:19,833 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-10 19:25:19,834 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 19:25:19,834 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 19:25:19,835 INFO L229 MonitoredProcess]: Starting monitored process 37 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-10 19:25:19,838 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (37)] Waiting until timeout for monitored process [2024-11-10 19:25:19,903 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-10 19:25:19,903 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-10 19:25:19,906 INFO L255 TraceCheckSpWp]: Trace formula consists of 413 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-10 19:25:19,909 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 19:25:20,506 INFO L134 CoverageAnalysis]: Checked inductivity of 1378 backedges. 0 proven. 975 refuted. 0 times theorem prover too weak. 403 trivial. 0 not checked. [2024-11-10 19:25:20,506 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-10 19:25:20,739 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 19:25:20,740 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [655605214] [2024-11-10 19:25:20,740 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-10 19:25:20,740 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1913215356] [2024-11-10 19:25:20,740 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1913215356] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 19:25:20,740 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-10 19:25:20,740 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2024-11-10 19:25:20,740 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1388301807] [2024-11-10 19:25:20,740 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-10 19:25:20,741 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-10 19:25:20,741 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 19:25:20,741 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-10 19:25:20,741 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2024-11-10 19:25:20,741 INFO L87 Difference]: Start difference. First operand 18173 states and 20252 transitions. Second operand has 10 states, 9 states have (on average 15.777777777777779) internal successors, (142), 10 states have internal predecessors, (142), 7 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 7 states have call predecessors, (8), 7 states have call successors, (8) [2024-11-10 19:25:21,801 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 19:25:21,801 INFO L93 Difference]: Finished difference Result 19468 states and 21718 transitions. [2024-11-10 19:25:21,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-10 19:25:21,802 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 15.777777777777779) internal successors, (142), 10 states have internal predecessors, (142), 7 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 7 states have call predecessors, (8), 7 states have call successors, (8) Word has length 293 [2024-11-10 19:25:21,802 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 19:25:21,825 INFO L225 Difference]: With dead ends: 19468 [2024-11-10 19:25:21,825 INFO L226 Difference]: Without dead ends: 19467 [2024-11-10 19:25:21,831 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 307 GetRequests, 297 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2024-11-10 19:25:21,832 INFO L432 NwaCegarLoop]: 61 mSDtfsCounter, 26 mSDsluCounter, 275 mSDsCounter, 0 mSdLazyCounter, 441 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 336 SdHoareTripleChecker+Invalid, 441 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 441 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-10 19:25:21,832 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 336 Invalid, 441 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 441 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-10 19:25:21,839 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19467 states. [2024-11-10 19:25:22,483 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19467 to 18645. [2024-11-10 19:25:22,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18645 states, 17682 states have (on average 1.0671869697997964) internal successors, (18870), 17685 states have internal predecessors, (18870), 957 states have call successors, (957), 2 states have call predecessors, (957), 2 states have return successors, (957), 957 states have call predecessors, (957), 957 states have call successors, (957) [2024-11-10 19:25:22,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18645 states to 18645 states and 20784 transitions. [2024-11-10 19:25:22,519 INFO L78 Accepts]: Start accepts. Automaton has 18645 states and 20784 transitions. Word has length 293 [2024-11-10 19:25:22,519 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 19:25:22,519 INFO L471 AbstractCegarLoop]: Abstraction has 18645 states and 20784 transitions. [2024-11-10 19:25:22,519 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 15.777777777777779) internal successors, (142), 10 states have internal predecessors, (142), 7 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 7 states have call predecessors, (8), 7 states have call successors, (8) [2024-11-10 19:25:22,520 INFO L276 IsEmpty]: Start isEmpty. Operand 18645 states and 20784 transitions. [2024-11-10 19:25:22,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 294 [2024-11-10 19:25:22,524 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 19:25:22,524 INFO L215 NwaCegarLoop]: trace histogram [13, 13, 13, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 9, 9, 9, 9, 9, 9, 9, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 19:25:22,538 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (37)] Forceful destruction successful, exit code 0 [2024-11-10 19:25:22,727 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 37 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable39 [2024-11-10 19:25:22,728 INFO L396 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-10 19:25:22,728 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 19:25:22,728 INFO L85 PathProgramCache]: Analyzing trace with hash 1434047064, now seen corresponding path program 15 times [2024-11-10 19:25:22,728 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 19:25:22,728 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1769046770] [2024-11-10 19:25:22,728 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 19:25:22,729 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 19:25:22,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-10 19:25:22,749 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1119261976] [2024-11-10 19:25:22,749 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-10 19:25:22,749 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 19:25:22,749 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 19:25:22,750 INFO L229 MonitoredProcess]: Starting monitored process 38 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-10 19:25:22,751 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (38)] Waiting until timeout for monitored process [2024-11-10 19:25:22,842 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 10 check-sat command(s) [2024-11-10 19:25:22,842 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-10 19:25:22,843 INFO L255 TraceCheckSpWp]: Trace formula consists of 323 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-11-10 19:25:22,845 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 19:25:23,244 INFO L134 CoverageAnalysis]: Checked inductivity of 1408 backedges. 0 proven. 948 refuted. 0 times theorem prover too weak. 460 trivial. 0 not checked. [2024-11-10 19:25:23,244 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-10 19:25:23,920 INFO L134 CoverageAnalysis]: Checked inductivity of 1408 backedges. 0 proven. 948 refuted. 0 times theorem prover too weak. 460 trivial. 0 not checked. [2024-11-10 19:25:23,920 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 19:25:23,920 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1769046770] [2024-11-10 19:25:23,921 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-10 19:25:23,921 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1119261976] [2024-11-10 19:25:23,921 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1119261976] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-10 19:25:23,921 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-10 19:25:23,921 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 17 [2024-11-10 19:25:23,921 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1961299039] [2024-11-10 19:25:23,921 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-10 19:25:23,922 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-10 19:25:23,922 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 19:25:23,922 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-10 19:25:23,922 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=235, Unknown=0, NotChecked=0, Total=306 [2024-11-10 19:25:23,922 INFO L87 Difference]: Start difference. First operand 18645 states and 20784 transitions. Second operand has 18 states, 17 states have (on average 15.411764705882353) internal successors, (262), 18 states have internal predecessors, (262), 13 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 13 states have call predecessors, (14), 13 states have call successors, (14) [2024-11-10 19:25:27,135 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 19:25:27,135 INFO L93 Difference]: Finished difference Result 20800 states and 23230 transitions. [2024-11-10 19:25:27,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2024-11-10 19:25:27,136 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 17 states have (on average 15.411764705882353) internal successors, (262), 18 states have internal predecessors, (262), 13 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 13 states have call predecessors, (14), 13 states have call successors, (14) Word has length 293 [2024-11-10 19:25:27,136 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 19:25:27,156 INFO L225 Difference]: With dead ends: 20800 [2024-11-10 19:25:27,157 INFO L226 Difference]: Without dead ends: 20798 [2024-11-10 19:25:27,162 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 626 GetRequests, 568 SyntacticMatches, 0 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 917 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=778, Invalid=2762, Unknown=0, NotChecked=0, Total=3540 [2024-11-10 19:25:27,162 INFO L432 NwaCegarLoop]: 78 mSDtfsCounter, 479 mSDsluCounter, 631 mSDsCounter, 0 mSdLazyCounter, 1231 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 481 SdHoareTripleChecker+Valid, 709 SdHoareTripleChecker+Invalid, 1272 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 1231 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-10 19:25:27,162 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [481 Valid, 709 Invalid, 1272 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 1231 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-10 19:25:27,168 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20798 states. [2024-11-10 19:25:27,869 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20798 to 19692. [2024-11-10 19:25:27,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19692 states, 18674 states have (on average 1.0681160972475099) internal successors, (19946), 18677 states have internal predecessors, (19946), 1012 states have call successors, (1012), 2 states have call predecessors, (1012), 2 states have return successors, (1012), 1012 states have call predecessors, (1012), 1012 states have call successors, (1012) [2024-11-10 19:25:27,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19692 states to 19692 states and 21970 transitions. [2024-11-10 19:25:27,906 INFO L78 Accepts]: Start accepts. Automaton has 19692 states and 21970 transitions. Word has length 293 [2024-11-10 19:25:27,907 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 19:25:27,907 INFO L471 AbstractCegarLoop]: Abstraction has 19692 states and 21970 transitions. [2024-11-10 19:25:27,907 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 17 states have (on average 15.411764705882353) internal successors, (262), 18 states have internal predecessors, (262), 13 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 13 states have call predecessors, (14), 13 states have call successors, (14) [2024-11-10 19:25:27,907 INFO L276 IsEmpty]: Start isEmpty. Operand 19692 states and 21970 transitions. [2024-11-10 19:25:27,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 294 [2024-11-10 19:25:27,911 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 19:25:27,911 INFO L215 NwaCegarLoop]: trace histogram [13, 13, 13, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 10, 10, 10, 10, 10, 10, 10, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 19:25:27,917 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (38)] Ended with exit code 0 [2024-11-10 19:25:28,111 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40,38 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 19:25:28,112 INFO L396 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-10 19:25:28,112 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 19:25:28,112 INFO L85 PathProgramCache]: Analyzing trace with hash 947473305, now seen corresponding path program 16 times [2024-11-10 19:25:28,112 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 19:25:28,112 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2090755435] [2024-11-10 19:25:28,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 19:25:28,112 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 19:25:28,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-10 19:25:28,131 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1166642826] [2024-11-10 19:25:28,131 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-10 19:25:28,131 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 19:25:28,131 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 19:25:28,135 INFO L229 MonitoredProcess]: Starting monitored process 39 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-10 19:25:28,139 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (39)] Waiting until timeout for monitored process [2024-11-10 19:25:28,210 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-10 19:25:28,211 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-10 19:25:28,212 INFO L255 TraceCheckSpWp]: Trace formula consists of 407 conjuncts, 37 conjuncts are in the unsatisfiable core [2024-11-10 19:25:28,215 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 19:25:29,450 INFO L134 CoverageAnalysis]: Checked inductivity of 1450 backedges. 30 proven. 1185 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2024-11-10 19:25:29,450 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-10 19:25:29,925 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 19:25:29,925 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2090755435] [2024-11-10 19:25:29,925 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-10 19:25:29,925 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1166642826] [2024-11-10 19:25:29,925 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1166642826] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 19:25:29,926 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-10 19:25:29,926 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [29] total 29 [2024-11-10 19:25:29,926 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1846901586] [2024-11-10 19:25:29,926 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-10 19:25:29,926 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2024-11-10 19:25:29,926 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 19:25:29,927 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2024-11-10 19:25:29,927 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=140, Invalid=916, Unknown=0, NotChecked=0, Total=1056 [2024-11-10 19:25:29,927 INFO L87 Difference]: Start difference. First operand 19692 states and 21970 transitions. Second operand has 30 states, 29 states have (on average 8.0) internal successors, (232), 30 states have internal predecessors, (232), 13 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 13 states have call predecessors, (14), 13 states have call successors, (14)