./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/nla-digbench-scaling/freire1_valuebound20.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/freire1_valuebound20.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 bff053df41c1fc922299a13f2dac2a98df2d05e146d51bf11ac9e37ddfefad6a --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-023d838-m [2024-11-10 19:13:00,698 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-10 19:13:00,790 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-10 19:13:00,794 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-10 19:13:00,796 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-10 19:13:00,819 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-10 19:13:00,820 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-10 19:13:00,820 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-10 19:13:00,821 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-10 19:13:00,821 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-10 19:13:00,821 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-10 19:13:00,822 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-10 19:13:00,823 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-10 19:13:00,823 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-10 19:13:00,824 INFO L153 SettingsManager]: * Use SBE=true [2024-11-10 19:13:00,825 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-10 19:13:00,828 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-10 19:13:00,828 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-10 19:13:00,828 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-10 19:13:00,828 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-10 19:13:00,829 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-10 19:13:00,829 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-10 19:13:00,830 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-10 19:13:00,830 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-10 19:13:00,830 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-10 19:13:00,831 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-10 19:13:00,831 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-10 19:13:00,831 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-10 19:13:00,831 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-10 19:13:00,832 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-10 19:13:00,832 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-10 19:13:00,832 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-10 19:13:00,832 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-10 19:13:00,832 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-10 19:13:00,833 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-10 19:13:00,833 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-10 19:13:00,833 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-10 19:13:00,833 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-10 19:13:00,834 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-10 19:13:00,834 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-10 19:13:00,834 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-10 19:13:00,835 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-10 19:13:00,835 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-10 19:13:00,835 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-10 19:13:00,836 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bff053df41c1fc922299a13f2dac2a98df2d05e146d51bf11ac9e37ddfefad6a [2024-11-10 19:13:01,095 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-10 19:13:01,120 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-10 19:13:01,123 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-10 19:13:01,124 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-10 19:13:01,124 INFO L274 PluginConnector]: CDTParser initialized [2024-11-10 19:13:01,125 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/nla-digbench-scaling/freire1_valuebound20.c [2024-11-10 19:13:02,596 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-10 19:13:02,768 INFO L384 CDTParser]: Found 1 translation units. [2024-11-10 19:13:02,769 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/nla-digbench-scaling/freire1_valuebound20.c [2024-11-10 19:13:02,776 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b35f5461e/d2e5506079ae4a8fab5cb9f4be28fce9/FLAGa421cf5d5 [2024-11-10 19:13:02,790 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b35f5461e/d2e5506079ae4a8fab5cb9f4be28fce9 [2024-11-10 19:13:02,793 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-10 19:13:02,794 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-10 19:13:02,795 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-10 19:13:02,795 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-10 19:13:02,801 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-10 19:13:02,802 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 07:13:02" (1/1) ... [2024-11-10 19:13:02,803 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3cde0fb7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:13:02, skipping insertion in model container [2024-11-10 19:13:02,803 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 07:13:02" (1/1) ... [2024-11-10 19:13:02,820 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-10 19:13:03,022 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 19:13:03,036 INFO L200 MainTranslator]: Completed pre-run [2024-11-10 19:13:03,049 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 19:13:03,065 INFO L204 MainTranslator]: Completed translation [2024-11-10 19:13:03,067 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:13:03 WrapperNode [2024-11-10 19:13:03,067 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-10 19:13:03,079 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-10 19:13:03,080 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-10 19:13:03,080 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-10 19:13:03,086 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:13:03" (1/1) ... [2024-11-10 19:13:03,095 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:13:03" (1/1) ... [2024-11-10 19:13:03,113 INFO L138 Inliner]: procedures = 14, calls = 11, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 44 [2024-11-10 19:13:03,113 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-10 19:13:03,114 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-10 19:13:03,114 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-10 19:13:03,114 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-10 19:13:03,121 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:13:03" (1/1) ... [2024-11-10 19:13:03,121 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:13:03" (1/1) ... [2024-11-10 19:13:03,123 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:13:03" (1/1) ... [2024-11-10 19:13:03,142 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 19:13:03,142 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:13:03" (1/1) ... [2024-11-10 19:13:03,142 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:13:03" (1/1) ... [2024-11-10 19:13:03,145 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:13:03" (1/1) ... [2024-11-10 19:13:03,146 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:13:03" (1/1) ... [2024-11-10 19:13:03,147 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:13:03" (1/1) ... [2024-11-10 19:13:03,148 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:13:03" (1/1) ... [2024-11-10 19:13:03,149 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-10 19:13:03,150 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-10 19:13:03,150 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-10 19:13:03,150 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-10 19:13:03,151 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:13:03" (1/1) ... [2024-11-10 19:13:03,159 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-10 19:13:03,170 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 19:13:03,190 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 19:13:03,195 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 19:13:03,240 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-10 19:13:03,240 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-10 19:13:03,240 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-10 19:13:03,241 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-10 19:13:03,241 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-10 19:13:03,241 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-10 19:13:03,312 INFO L256 CfgBuilder]: Building ICFG [2024-11-10 19:13:03,314 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-10 19:13:03,508 INFO L? ?]: Removed 11 outVars from TransFormulas that were not future-live. [2024-11-10 19:13:03,508 INFO L307 CfgBuilder]: Performing block encoding [2024-11-10 19:13:03,523 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-10 19:13:03,525 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-10 19:13:03,526 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 07:13:03 BoogieIcfgContainer [2024-11-10 19:13:03,526 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-10 19:13:03,529 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-10 19:13:03,529 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-10 19:13:03,532 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-10 19:13:03,533 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 07:13:02" (1/3) ... [2024-11-10 19:13:03,534 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@20136920 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 07:13:03, skipping insertion in model container [2024-11-10 19:13:03,534 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:13:03" (2/3) ... [2024-11-10 19:13:03,535 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@20136920 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 07:13:03, skipping insertion in model container [2024-11-10 19:13:03,535 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 07:13:03" (3/3) ... [2024-11-10 19:13:03,537 INFO L112 eAbstractionObserver]: Analyzing ICFG freire1_valuebound20.c [2024-11-10 19:13:03,555 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-10 19:13:03,555 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2024-11-10 19:13:03,618 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-10 19:13:03,628 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;@1c31e752, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-10 19:13:03,628 INFO L334 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2024-11-10 19:13:03,633 INFO L276 IsEmpty]: Start isEmpty. Operand has 32 states, 22 states have (on average 1.5) internal successors, (33), 28 states have internal predecessors, (33), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-10 19:13:03,639 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-11-10 19:13:03,640 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 19:13:03,640 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2024-11-10 19:13:03,641 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-10 19:13:03,645 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 19:13:03,645 INFO L85 PathProgramCache]: Analyzing trace with hash 1773990445, now seen corresponding path program 1 times [2024-11-10 19:13:03,653 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 19:13:03,653 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2034121782] [2024-11-10 19:13:03,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 19:13:03,654 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 19:13:03,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:13:03,774 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 19:13:03,775 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 19:13:03,775 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2034121782] [2024-11-10 19:13:03,776 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2034121782] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 19:13:03,776 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 19:13:03,776 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-10 19:13:03,778 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [689769614] [2024-11-10 19:13:03,779 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 19:13:03,784 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-10 19:13:03,785 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 19:13:03,805 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-10 19:13:03,806 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-10 19:13:03,808 INFO L87 Difference]: Start difference. First operand has 32 states, 22 states have (on average 1.5) internal successors, (33), 28 states have internal predecessors, (33), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 19:13:03,827 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 19:13:03,828 INFO L93 Difference]: Finished difference Result 58 states and 71 transitions. [2024-11-10 19:13:03,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-10 19:13:03,830 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2024-11-10 19:13:03,830 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 19:13:03,836 INFO L225 Difference]: With dead ends: 58 [2024-11-10 19:13:03,837 INFO L226 Difference]: Without dead ends: 23 [2024-11-10 19:13:03,840 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-10 19:13:03,844 INFO L432 NwaCegarLoop]: 30 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, 30 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 19:13:03,848 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-10 19:13:03,861 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2024-11-10 19:13:03,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2024-11-10 19:13:03,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 17 states have (on average 1.2352941176470589) internal successors, (21), 20 states have internal predecessors, (21), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-10 19:13:03,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 23 transitions. [2024-11-10 19:13:03,877 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 23 transitions. Word has length 6 [2024-11-10 19:13:03,877 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 19:13:03,877 INFO L471 AbstractCegarLoop]: Abstraction has 23 states and 23 transitions. [2024-11-10 19:13:03,877 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 19:13:03,878 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 23 transitions. [2024-11-10 19:13:03,878 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-10 19:13:03,878 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 19:13:03,878 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 19:13:03,878 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-10 19:13:03,879 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-10 19:13:03,879 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 19:13:03,879 INFO L85 PathProgramCache]: Analyzing trace with hash -268583492, now seen corresponding path program 1 times [2024-11-10 19:13:03,880 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 19:13:03,880 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [53017384] [2024-11-10 19:13:03,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 19:13:03,881 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 19:13:03,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-10 19:13:03,902 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1609410145] [2024-11-10 19:13:03,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 19:13:03,902 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 19:13:03,903 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 19:13:03,905 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 19:13:03,906 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 19:13:03,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:13:03,975 INFO L255 TraceCheckSpWp]: Trace formula consists of 32 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-10 19:13:03,980 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 19:13:04,012 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 19:13:04,013 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-10 19:13:04,013 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 19:13:04,013 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [53017384] [2024-11-10 19:13:04,014 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-10 19:13:04,014 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1609410145] [2024-11-10 19:13:04,014 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1609410145] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 19:13:04,014 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 19:13:04,014 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-10 19:13:04,016 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [842552039] [2024-11-10 19:13:04,016 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 19:13:04,017 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-10 19:13:04,017 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 19:13:04,017 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-10 19:13:04,018 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-10 19:13:04,018 INFO L87 Difference]: Start difference. First operand 23 states and 23 transitions. Second operand has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 19:13:04,065 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 19:13:04,065 INFO L93 Difference]: Finished difference Result 38 states and 39 transitions. [2024-11-10 19:13:04,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-10 19:13:04,066 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2024-11-10 19:13:04,066 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 19:13:04,067 INFO L225 Difference]: With dead ends: 38 [2024-11-10 19:13:04,067 INFO L226 Difference]: Without dead ends: 32 [2024-11-10 19:13:04,067 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 6 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 19:13:04,068 INFO L432 NwaCegarLoop]: 17 mSDtfsCounter, 6 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 28 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-10 19:13:04,068 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 28 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-10 19:13:04,071 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2024-11-10 19:13:04,077 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 31. [2024-11-10 19:13:04,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 24 states have (on average 1.1666666666666667) internal successors, (28), 27 states have internal predecessors, (28), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-10 19:13:04,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 32 transitions. [2024-11-10 19:13:04,078 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 32 transitions. Word has length 8 [2024-11-10 19:13:04,078 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 19:13:04,078 INFO L471 AbstractCegarLoop]: Abstraction has 31 states and 32 transitions. [2024-11-10 19:13:04,079 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 19:13:04,079 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 32 transitions. [2024-11-10 19:13:04,080 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2024-11-10 19:13:04,080 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 19:13:04,080 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 19:13:04,093 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 19:13:04,280 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 19:13:04,281 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-10 19:13:04,282 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 19:13:04,282 INFO L85 PathProgramCache]: Analyzing trace with hash 68842952, now seen corresponding path program 1 times [2024-11-10 19:13:04,282 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 19:13:04,282 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1051464555] [2024-11-10 19:13:04,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 19:13:04,282 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 19:13:04,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-10 19:13:04,316 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1188686701] [2024-11-10 19:13:04,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 19:13:04,316 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 19:13:04,317 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 19:13:04,318 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 19:13:04,319 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 19:13:04,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:13:04,360 INFO L255 TraceCheckSpWp]: Trace formula consists of 50 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-10 19:13:04,361 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 19:13:04,418 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 19:13:04,419 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-10 19:13:04,513 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 19:13:04,513 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 19:13:04,513 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1051464555] [2024-11-10 19:13:04,513 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-10 19:13:04,514 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1188686701] [2024-11-10 19:13:04,514 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1188686701] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-10 19:13:04,514 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-10 19:13:04,514 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 5 [2024-11-10 19:13:04,515 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1813121610] [2024-11-10 19:13:04,515 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-10 19:13:04,515 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-10 19:13:04,515 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 19:13:04,517 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-10 19:13:04,518 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-10 19:13:04,519 INFO L87 Difference]: Start difference. First operand 31 states and 32 transitions. Second operand has 6 states, 5 states have (on average 6.4) internal successors, (32), 6 states have internal predecessors, (32), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-10 19:13:04,633 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 19:13:04,634 INFO L93 Difference]: Finished difference Result 59 states and 70 transitions. [2024-11-10 19:13:04,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-10 19:13:04,635 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 6.4) internal successors, (32), 6 states have internal predecessors, (32), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 21 [2024-11-10 19:13:04,635 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 19:13:04,636 INFO L225 Difference]: With dead ends: 59 [2024-11-10 19:13:04,636 INFO L226 Difference]: Without dead ends: 49 [2024-11-10 19:13:04,636 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2024-11-10 19:13:04,637 INFO L432 NwaCegarLoop]: 19 mSDtfsCounter, 22 mSDsluCounter, 35 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 54 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-10 19:13:04,638 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 54 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-10 19:13:04,639 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2024-11-10 19:13:04,645 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 49. [2024-11-10 19:13:04,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49 states, 43 states have (on average 1.0232558139534884) internal successors, (44), 43 states have internal predecessors, (44), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-10 19:13:04,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 52 transitions. [2024-11-10 19:13:04,647 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 52 transitions. Word has length 21 [2024-11-10 19:13:04,648 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 19:13:04,648 INFO L471 AbstractCegarLoop]: Abstraction has 49 states and 52 transitions. [2024-11-10 19:13:04,648 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 6.4) internal successors, (32), 6 states have internal predecessors, (32), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-10 19:13:04,649 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 52 transitions. [2024-11-10 19:13:04,650 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2024-11-10 19:13:04,650 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 19:13:04,650 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1] [2024-11-10 19:13:04,665 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 19:13:04,851 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2024-11-10 19:13:04,852 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-10 19:13:04,852 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 19:13:04,852 INFO L85 PathProgramCache]: Analyzing trace with hash -1196604228, now seen corresponding path program 2 times [2024-11-10 19:13:04,853 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 19:13:04,853 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1341439569] [2024-11-10 19:13:04,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 19:13:04,853 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 19:13:04,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-10 19:13:04,887 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [550854945] [2024-11-10 19:13:04,887 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-10 19:13:04,887 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 19:13:04,887 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 19:13:04,889 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 19:13:04,890 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 19:13:04,976 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-10 19:13:04,977 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-10 19:13:04,980 INFO L255 TraceCheckSpWp]: Trace formula consists of 104 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-10 19:13:04,984 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 19:13:05,147 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 0 proven. 70 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-10 19:13:05,148 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-10 19:13:05,392 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 0 proven. 70 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-10 19:13:05,392 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 19:13:05,393 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1341439569] [2024-11-10 19:13:05,393 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-10 19:13:05,393 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [550854945] [2024-11-10 19:13:05,393 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [550854945] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-10 19:13:05,393 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-10 19:13:05,393 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 11 [2024-11-10 19:13:05,393 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [661932924] [2024-11-10 19:13:05,394 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-10 19:13:05,394 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-10 19:13:05,394 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 19:13:05,395 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-10 19:13:05,396 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2024-11-10 19:13:05,396 INFO L87 Difference]: Start difference. First operand 49 states and 52 transitions. Second operand has 12 states, 11 states have (on average 7.2727272727272725) internal successors, (80), 12 states have internal predecessors, (80), 8 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-10 19:13:05,696 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 19:13:05,697 INFO L93 Difference]: Finished difference Result 104 states and 118 transitions. [2024-11-10 19:13:05,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-10 19:13:05,698 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 7.2727272727272725) internal successors, (80), 12 states have internal predecessors, (80), 8 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) Word has length 60 [2024-11-10 19:13:05,698 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 19:13:05,700 INFO L225 Difference]: With dead ends: 104 [2024-11-10 19:13:05,701 INFO L226 Difference]: Without dead ends: 103 [2024-11-10 19:13:05,702 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 108 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=94, Invalid=146, Unknown=0, NotChecked=0, Total=240 [2024-11-10 19:13:05,703 INFO L432 NwaCegarLoop]: 33 mSDtfsCounter, 28 mSDsluCounter, 144 mSDsCounter, 0 mSdLazyCounter, 190 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 177 SdHoareTripleChecker+Invalid, 197 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 190 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-10 19:13:05,705 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 177 Invalid, 197 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 190 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-10 19:13:05,707 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103 states. [2024-11-10 19:13:05,725 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103 to 103. [2024-11-10 19:13:05,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 103 states, 91 states have (on average 1.010989010989011) internal successors, (92), 91 states have internal predecessors, (92), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-11-10 19:13:05,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 112 transitions. [2024-11-10 19:13:05,732 INFO L78 Accepts]: Start accepts. Automaton has 103 states and 112 transitions. Word has length 60 [2024-11-10 19:13:05,733 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 19:13:05,733 INFO L471 AbstractCegarLoop]: Abstraction has 103 states and 112 transitions. [2024-11-10 19:13:05,733 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 7.2727272727272725) internal successors, (80), 12 states have internal predecessors, (80), 8 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-10 19:13:05,733 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 112 transitions. [2024-11-10 19:13:05,737 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2024-11-10 19:13:05,737 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 19:13:05,738 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1] [2024-11-10 19:13:05,751 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 19:13:05,938 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 19:13:05,939 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-10 19:13:05,939 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 19:13:05,939 INFO L85 PathProgramCache]: Analyzing trace with hash 2052210492, now seen corresponding path program 3 times [2024-11-10 19:13:05,939 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 19:13:05,940 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1557258115] [2024-11-10 19:13:05,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 19:13:05,940 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 19:13:05,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-10 19:13:06,000 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [17682022] [2024-11-10 19:13:06,000 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-10 19:13:06,000 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 19:13:06,000 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 19:13:06,002 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 19:13:06,005 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 19:13:06,095 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2024-11-10 19:13:06,096 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-10 19:13:06,097 INFO L255 TraceCheckSpWp]: Trace formula consists of 212 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-11-10 19:13:06,102 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 19:13:06,327 INFO L134 CoverageAnalysis]: Checked inductivity of 625 backedges. 0 proven. 445 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2024-11-10 19:13:06,327 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-10 19:13:06,899 INFO L134 CoverageAnalysis]: Checked inductivity of 625 backedges. 0 proven. 445 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2024-11-10 19:13:06,899 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 19:13:06,899 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1557258115] [2024-11-10 19:13:06,900 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-10 19:13:06,900 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [17682022] [2024-11-10 19:13:06,900 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [17682022] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-10 19:13:06,900 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-10 19:13:06,900 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 23 [2024-11-10 19:13:06,900 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1642924853] [2024-11-10 19:13:06,901 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-10 19:13:06,901 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2024-11-10 19:13:06,901 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 19:13:06,903 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2024-11-10 19:13:06,903 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=166, Invalid=386, Unknown=0, NotChecked=0, Total=552 [2024-11-10 19:13:06,903 INFO L87 Difference]: Start difference. First operand 103 states and 112 transitions. Second operand has 24 states, 23 states have (on average 7.6521739130434785) internal successors, (176), 24 states have internal predecessors, (176), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-11-10 19:13:07,822 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 19:13:07,823 INFO L93 Difference]: Finished difference Result 212 states and 244 transitions. [2024-11-10 19:13:07,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2024-11-10 19:13:07,824 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 23 states have (on average 7.6521739130434785) internal successors, (176), 24 states have internal predecessors, (176), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) Word has length 138 [2024-11-10 19:13:07,824 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 19:13:07,826 INFO L225 Difference]: With dead ends: 212 [2024-11-10 19:13:07,826 INFO L226 Difference]: Without dead ends: 211 [2024-11-10 19:13:07,827 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 284 GetRequests, 252 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=406, Invalid=716, Unknown=0, NotChecked=0, Total=1122 [2024-11-10 19:13:07,830 INFO L432 NwaCegarLoop]: 63 mSDtfsCounter, 52 mSDsluCounter, 538 mSDsCounter, 0 mSdLazyCounter, 810 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 601 SdHoareTripleChecker+Invalid, 823 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 810 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-10 19:13:07,830 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [54 Valid, 601 Invalid, 823 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 810 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-10 19:13:07,831 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 211 states. [2024-11-10 19:13:07,860 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 211 to 211. [2024-11-10 19:13:07,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 211 states, 187 states have (on average 1.0053475935828877) internal successors, (188), 187 states have internal predecessors, (188), 22 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2024-11-10 19:13:07,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 211 states to 211 states and 232 transitions. [2024-11-10 19:13:07,864 INFO L78 Accepts]: Start accepts. Automaton has 211 states and 232 transitions. Word has length 138 [2024-11-10 19:13:07,864 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 19:13:07,865 INFO L471 AbstractCegarLoop]: Abstraction has 211 states and 232 transitions. [2024-11-10 19:13:07,865 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 23 states have (on average 7.6521739130434785) internal successors, (176), 24 states have internal predecessors, (176), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-11-10 19:13:07,865 INFO L276 IsEmpty]: Start isEmpty. Operand 211 states and 232 transitions. [2024-11-10 19:13:07,870 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 295 [2024-11-10 19:13:07,871 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 19:13:07,871 INFO L215 NwaCegarLoop]: trace histogram [23, 23, 23, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 1, 1, 1, 1, 1] [2024-11-10 19:13:07,886 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-10 19:13:08,071 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 19:13:08,072 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-10 19:13:08,072 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 19:13:08,072 INFO L85 PathProgramCache]: Analyzing trace with hash -1594944452, now seen corresponding path program 4 times [2024-11-10 19:13:08,073 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 19:13:08,073 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1695564069] [2024-11-10 19:13:08,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 19:13:08,073 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 19:13:08,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-10 19:13:08,208 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1561498066] [2024-11-10 19:13:08,209 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-10 19:13:08,210 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 19:13:08,210 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 19:13:08,212 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 19:13:08,213 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 19:13:08,325 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-10 19:13:08,325 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-10 19:13:08,328 INFO L255 TraceCheckSpWp]: Trace formula consists of 428 conjuncts, 47 conjuncts are in the unsatisfiable core [2024-11-10 19:13:08,340 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 19:13:08,848 INFO L134 CoverageAnalysis]: Checked inductivity of 3091 backedges. 0 proven. 2167 refuted. 0 times theorem prover too weak. 924 trivial. 0 not checked. [2024-11-10 19:13:08,849 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-10 19:13:10,077 INFO L134 CoverageAnalysis]: Checked inductivity of 3091 backedges. 0 proven. 2167 refuted. 0 times theorem prover too weak. 924 trivial. 0 not checked. [2024-11-10 19:13:10,078 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 19:13:10,078 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1695564069] [2024-11-10 19:13:10,078 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-10 19:13:10,078 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1561498066] [2024-11-10 19:13:10,078 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1561498066] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-10 19:13:10,078 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-10 19:13:10,079 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 24] total 47 [2024-11-10 19:13:10,079 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1541642523] [2024-11-10 19:13:10,079 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-10 19:13:10,080 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 48 states [2024-11-10 19:13:10,080 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 19:13:10,082 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2024-11-10 19:13:10,083 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=622, Invalid=1634, Unknown=0, NotChecked=0, Total=2256 [2024-11-10 19:13:10,083 INFO L87 Difference]: Start difference. First operand 211 states and 232 transitions. Second operand has 48 states, 47 states have (on average 7.829787234042553) internal successors, (368), 48 states have internal predecessors, (368), 44 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 44 states have call predecessors, (44), 44 states have call successors, (44) [2024-11-10 19:13:13,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 19:13:13,314 INFO L93 Difference]: Finished difference Result 428 states and 496 transitions. [2024-11-10 19:13:13,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2024-11-10 19:13:13,315 INFO L78 Accepts]: Start accepts. Automaton has has 48 states, 47 states have (on average 7.829787234042553) internal successors, (368), 48 states have internal predecessors, (368), 44 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 44 states have call predecessors, (44), 44 states have call successors, (44) Word has length 294 [2024-11-10 19:13:13,316 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 19:13:13,318 INFO L225 Difference]: With dead ends: 428 [2024-11-10 19:13:13,318 INFO L226 Difference]: Without dead ends: 427 [2024-11-10 19:13:13,320 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 608 GetRequests, 540 SyntacticMatches, 0 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 231 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=1678, Invalid=3152, Unknown=0, NotChecked=0, Total=4830 [2024-11-10 19:13:13,321 INFO L432 NwaCegarLoop]: 123 mSDtfsCounter, 96 mSDsluCounter, 2342 mSDsCounter, 0 mSdLazyCounter, 3362 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 98 SdHoareTripleChecker+Valid, 2465 SdHoareTripleChecker+Invalid, 3386 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 3362 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-10 19:13:13,321 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [98 Valid, 2465 Invalid, 3386 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 3362 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-10 19:13:13,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 427 states. [2024-11-10 19:13:13,347 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 427 to 427. [2024-11-10 19:13:13,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 427 states, 379 states have (on average 1.0026385224274406) internal successors, (380), 379 states have internal predecessors, (380), 46 states have call successors, (46), 1 states have call predecessors, (46), 1 states have return successors, (46), 46 states have call predecessors, (46), 46 states have call successors, (46) [2024-11-10 19:13:13,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 427 states to 427 states and 472 transitions. [2024-11-10 19:13:13,354 INFO L78 Accepts]: Start accepts. Automaton has 427 states and 472 transitions. Word has length 294 [2024-11-10 19:13:13,355 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 19:13:13,355 INFO L471 AbstractCegarLoop]: Abstraction has 427 states and 472 transitions. [2024-11-10 19:13:13,359 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 48 states, 47 states have (on average 7.829787234042553) internal successors, (368), 48 states have internal predecessors, (368), 44 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 44 states have call predecessors, (44), 44 states have call successors, (44) [2024-11-10 19:13:13,359 INFO L276 IsEmpty]: Start isEmpty. Operand 427 states and 472 transitions. [2024-11-10 19:13:13,374 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 607 [2024-11-10 19:13:13,375 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 19:13:13,375 INFO L215 NwaCegarLoop]: trace histogram [47, 47, 47, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 1, 1, 1, 1, 1] [2024-11-10 19:13:13,393 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-11-10 19:13:13,579 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 19:13:13,580 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-10 19:13:13,580 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 19:13:13,580 INFO L85 PathProgramCache]: Analyzing trace with hash -1647034820, now seen corresponding path program 5 times [2024-11-10 19:13:13,580 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 19:13:13,581 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1414625650] [2024-11-10 19:13:13,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 19:13:13,581 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 19:13:13,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-10 19:13:13,781 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [416382805] [2024-11-10 19:13:13,781 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-10 19:13:13,781 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 19:13:13,782 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 19:13:13,785 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 19:13:13,786 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 19:13:14,006 INFO L227 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 47 check-sat command(s) [2024-11-10 19:13:14,006 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-10 19:13:14,019 INFO L255 TraceCheckSpWp]: Trace formula consists of 860 conjuncts, 95 conjuncts are in the unsatisfiable core [2024-11-10 19:13:14,028 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 19:13:15,256 INFO L134 CoverageAnalysis]: Checked inductivity of 13639 backedges. 0 proven. 9499 refuted. 0 times theorem prover too weak. 4140 trivial. 0 not checked. [2024-11-10 19:13:15,256 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-10 19:13:18,962 INFO L134 CoverageAnalysis]: Checked inductivity of 13639 backedges. 0 proven. 9499 refuted. 0 times theorem prover too weak. 4140 trivial. 0 not checked. [2024-11-10 19:13:18,962 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 19:13:18,962 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1414625650] [2024-11-10 19:13:18,963 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-10 19:13:18,963 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [416382805] [2024-11-10 19:13:18,963 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [416382805] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-10 19:13:18,963 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-10 19:13:18,963 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [48, 48] total 95 [2024-11-10 19:13:18,963 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1812460015] [2024-11-10 19:13:18,963 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-10 19:13:18,965 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 96 states [2024-11-10 19:13:18,966 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 19:13:18,969 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 96 interpolants. [2024-11-10 19:13:18,971 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2398, Invalid=6722, Unknown=0, NotChecked=0, Total=9120 [2024-11-10 19:13:18,972 INFO L87 Difference]: Start difference. First operand 427 states and 472 transitions. Second operand has 96 states, 95 states have (on average 7.91578947368421) internal successors, (752), 96 states have internal predecessors, (752), 92 states have call successors, (92), 1 states have call predecessors, (92), 1 states have return successors, (92), 92 states have call predecessors, (92), 92 states have call successors, (92) [2024-11-10 19:13:33,060 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 19:13:33,060 INFO L93 Difference]: Finished difference Result 860 states and 1000 transitions. [2024-11-10 19:13:33,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 96 states. [2024-11-10 19:13:33,061 INFO L78 Accepts]: Start accepts. Automaton has has 96 states, 95 states have (on average 7.91578947368421) internal successors, (752), 96 states have internal predecessors, (752), 92 states have call successors, (92), 1 states have call predecessors, (92), 1 states have return successors, (92), 92 states have call predecessors, (92), 92 states have call successors, (92) Word has length 606 [2024-11-10 19:13:33,063 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 19:13:33,067 INFO L225 Difference]: With dead ends: 860 [2024-11-10 19:13:33,067 INFO L226 Difference]: Without dead ends: 859 [2024-11-10 19:13:33,072 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1256 GetRequests, 1116 SyntacticMatches, 0 SemanticMatches, 140 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1035 ImplicationChecksByTransitivity, 13.5s TimeCoverageRelationStatistics Valid=6814, Invalid=13208, Unknown=0, NotChecked=0, Total=20022 [2024-11-10 19:13:33,072 INFO L432 NwaCegarLoop]: 243 mSDtfsCounter, 196 mSDsluCounter, 9122 mSDsCounter, 0 mSdLazyCounter, 13628 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 198 SdHoareTripleChecker+Valid, 9365 SdHoareTripleChecker+Invalid, 13677 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 13628 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2024-11-10 19:13:33,073 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [198 Valid, 9365 Invalid, 13677 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 13628 Invalid, 0 Unknown, 0 Unchecked, 3.9s Time] [2024-11-10 19:13:33,074 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 859 states. [2024-11-10 19:13:33,112 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 859 to 859. [2024-11-10 19:13:33,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 859 states, 763 states have (on average 1.001310615989515) internal successors, (764), 763 states have internal predecessors, (764), 94 states have call successors, (94), 1 states have call predecessors, (94), 1 states have return successors, (94), 94 states have call predecessors, (94), 94 states have call successors, (94) [2024-11-10 19:13:33,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 859 states to 859 states and 952 transitions. [2024-11-10 19:13:33,118 INFO L78 Accepts]: Start accepts. Automaton has 859 states and 952 transitions. Word has length 606 [2024-11-10 19:13:33,119 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 19:13:33,120 INFO L471 AbstractCegarLoop]: Abstraction has 859 states and 952 transitions. [2024-11-10 19:13:33,120 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 96 states, 95 states have (on average 7.91578947368421) internal successors, (752), 96 states have internal predecessors, (752), 92 states have call successors, (92), 1 states have call predecessors, (92), 1 states have return successors, (92), 92 states have call predecessors, (92), 92 states have call successors, (92) [2024-11-10 19:13:33,121 INFO L276 IsEmpty]: Start isEmpty. Operand 859 states and 952 transitions. [2024-11-10 19:13:33,158 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1231 [2024-11-10 19:13:33,158 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 19:13:33,158 INFO L215 NwaCegarLoop]: trace histogram [95, 95, 95, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 1, 1, 1, 1, 1] [2024-11-10 19:13:33,174 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 19:13:33,359 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 19:13:33,359 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-10 19:13:33,360 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 19:13:33,360 INFO L85 PathProgramCache]: Analyzing trace with hash -1186164164, now seen corresponding path program 6 times [2024-11-10 19:13:33,360 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 19:13:33,360 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1986813520] [2024-11-10 19:13:33,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 19:13:33,361 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 19:13:33,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-10 19:13:33,680 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1366811154] [2024-11-10 19:13:33,681 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-11-10 19:13:33,681 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 19:13:33,681 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 19:13:33,682 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 19:13:33,684 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 19:13:34,713 INFO L227 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 95 check-sat command(s) [2024-11-10 19:13:34,714 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-10 19:13:34,719 INFO L255 TraceCheckSpWp]: Trace formula consists of 1724 conjuncts, 98 conjuncts are in the unsatisfiable core [2024-11-10 19:13:34,736 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 19:13:38,623 INFO L134 CoverageAnalysis]: Checked inductivity of 57199 backedges. 0 proven. 39715 refuted. 0 times theorem prover too weak. 17484 trivial. 0 not checked. [2024-11-10 19:13:38,623 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-10 19:13:39,104 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 19:13:39,104 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1986813520] [2024-11-10 19:13:39,104 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-10 19:13:39,104 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1366811154] [2024-11-10 19:13:39,104 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1366811154] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 19:13:39,104 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-10 19:13:39,104 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [97] total 97 [2024-11-10 19:13:39,105 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1294172900] [2024-11-10 19:13:39,105 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-10 19:13:39,106 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 98 states [2024-11-10 19:13:39,106 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 19:13:39,109 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 98 interpolants. [2024-11-10 19:13:39,111 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=4771, Invalid=5531, Unknown=0, NotChecked=0, Total=10302 [2024-11-10 19:13:39,112 INFO L87 Difference]: Start difference. First operand 859 states and 952 transitions. Second operand has 98 states, 97 states have (on average 7.865979381443299) internal successors, (763), 98 states have internal predecessors, (763), 94 states have call successors, (94), 1 states have call predecessors, (94), 1 states have return successors, (94), 94 states have call predecessors, (94), 94 states have call successors, (94) [2024-11-10 19:13:44,939 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 19:13:44,939 INFO L93 Difference]: Finished difference Result 874 states and 969 transitions. [2024-11-10 19:13:44,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 97 states. [2024-11-10 19:13:44,940 INFO L78 Accepts]: Start accepts. Automaton has has 98 states, 97 states have (on average 7.865979381443299) internal successors, (763), 98 states have internal predecessors, (763), 94 states have call successors, (94), 1 states have call predecessors, (94), 1 states have return successors, (94), 94 states have call predecessors, (94), 94 states have call successors, (94) Word has length 1230 [2024-11-10 19:13:44,942 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 19:13:44,950 INFO L225 Difference]: With dead ends: 874 [2024-11-10 19:13:44,952 INFO L226 Difference]: Without dead ends: 873 [2024-11-10 19:13:44,956 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1345 GetRequests, 1151 SyntacticMatches, 0 SemanticMatches, 194 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4751 ImplicationChecksByTransitivity, 8.3s TimeCoverageRelationStatistics Valid=14359, Invalid=23861, Unknown=0, NotChecked=0, Total=38220 [2024-11-10 19:13:44,957 INFO L432 NwaCegarLoop]: 13 mSDtfsCounter, 662 mSDsluCounter, 337 mSDsCounter, 0 mSdLazyCounter, 596 mSolverCounterSat, 189 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 663 SdHoareTripleChecker+Valid, 350 SdHoareTripleChecker+Invalid, 785 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 189 IncrementalHoareTripleChecker+Valid, 596 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-10 19:13:44,957 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [663 Valid, 350 Invalid, 785 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [189 Valid, 596 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-10 19:13:44,958 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 873 states. [2024-11-10 19:13:45,007 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 873 to 868. [2024-11-10 19:13:45,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 868 states, 771 states have (on average 1.0012970168612192) internal successors, (772), 771 states have internal predecessors, (772), 95 states have call successors, (95), 1 states have call predecessors, (95), 1 states have return successors, (95), 95 states have call predecessors, (95), 95 states have call successors, (95) [2024-11-10 19:13:45,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 868 states to 868 states and 962 transitions. [2024-11-10 19:13:45,014 INFO L78 Accepts]: Start accepts. Automaton has 868 states and 962 transitions. Word has length 1230 [2024-11-10 19:13:45,018 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 19:13:45,020 INFO L471 AbstractCegarLoop]: Abstraction has 868 states and 962 transitions. [2024-11-10 19:13:45,021 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 98 states, 97 states have (on average 7.865979381443299) internal successors, (763), 98 states have internal predecessors, (763), 94 states have call successors, (94), 1 states have call predecessors, (94), 1 states have return successors, (94), 94 states have call predecessors, (94), 94 states have call successors, (94) [2024-11-10 19:13:45,021 INFO L276 IsEmpty]: Start isEmpty. Operand 868 states and 962 transitions. [2024-11-10 19:13:45,034 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1244 [2024-11-10 19:13:45,034 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 19:13:45,035 INFO L215 NwaCegarLoop]: trace histogram [96, 96, 96, 95, 95, 95, 95, 95, 95, 95, 95, 95, 95, 1, 1, 1, 1, 1] [2024-11-10 19:13:45,056 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-10 19:13:45,236 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 19:13:45,236 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-10 19:13:45,236 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 19:13:45,237 INFO L85 PathProgramCache]: Analyzing trace with hash -479661752, now seen corresponding path program 7 times [2024-11-10 19:13:45,237 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 19:13:45,237 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [646425962] [2024-11-10 19:13:45,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 19:13:45,237 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 19:13:45,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-10 19:13:45,439 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1842294403] [2024-11-10 19:13:45,439 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-11-10 19:13:45,439 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 19:13:45,439 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 19:13:45,441 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 19:13:45,442 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 19:13:45,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:13:45,755 INFO L255 TraceCheckSpWp]: Trace formula consists of 1742 conjuncts, 193 conjuncts are in the unsatisfiable core [2024-11-10 19:13:45,770 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 19:13:49,685 INFO L134 CoverageAnalysis]: Checked inductivity of 58425 backedges. 0 proven. 40565 refuted. 0 times theorem prover too weak. 17860 trivial. 0 not checked. [2024-11-10 19:13:49,685 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-10 19:14:03,383 INFO L134 CoverageAnalysis]: Checked inductivity of 58425 backedges. 0 proven. 40565 refuted. 0 times theorem prover too weak. 17860 trivial. 0 not checked. [2024-11-10 19:14:03,383 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 19:14:03,384 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [646425962] [2024-11-10 19:14:03,384 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-10 19:14:03,384 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1842294403] [2024-11-10 19:14:03,384 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1842294403] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-10 19:14:03,384 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-10 19:14:03,385 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [97, 97] total 193 [2024-11-10 19:14:03,385 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [174321084] [2024-11-10 19:14:03,385 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-10 19:14:03,387 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 194 states [2024-11-10 19:14:03,387 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 19:14:03,392 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 194 interpolants. [2024-11-10 19:14:03,395 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9601, Invalid=27841, Unknown=0, NotChecked=0, Total=37442 [2024-11-10 19:14:03,397 INFO L87 Difference]: Start difference. First operand 868 states and 962 transitions. Second operand has 194 states, 193 states have (on average 7.958549222797927) internal successors, (1536), 194 states have internal predecessors, (1536), 190 states have call successors, (190), 1 states have call predecessors, (190), 1 states have return successors, (190), 190 states have call predecessors, (190), 190 states have call successors, (190)