./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/no-overflow.prp --file ../../../trunk/examples/svcomp/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-easy2-1.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version c4f91361 Calling Ultimate with: /root/.sdkman/candidates/java/current/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 ../../../trunk/examples/svcomp/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-easy2-1.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-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 64bit --witnessprinter.graph.data.programhash d7a26ac99d24cf78f342a00198534968a8c9a8e19670213e333d305f9460bd44 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-c4f9136-m [2023-11-23 16:00:38,427 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 16:00:38,502 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf [2023-11-23 16:00:38,507 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 16:00:38,508 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 16:00:38,533 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 16:00:38,534 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 16:00:38,534 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 16:00:38,535 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-23 16:00:38,538 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-23 16:00:38,538 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 16:00:38,539 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 16:00:38,539 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-23 16:00:38,540 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-23 16:00:38,541 INFO L153 SettingsManager]: * Use SBE=true [2023-11-23 16:00:38,541 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 16:00:38,541 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 16:00:38,541 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 16:00:38,542 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 16:00:38,542 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 16:00:38,543 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 16:00:38,543 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 16:00:38,543 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-23 16:00:38,544 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-23 16:00:38,544 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 16:00:38,544 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 16:00:38,545 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 16:00:38,545 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-23 16:00:38,545 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 16:00:38,545 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 16:00:38,546 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 16:00:38,546 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 16:00:38,546 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 16:00:38,547 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 16:00:38,547 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-23 16:00:38,547 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-23 16:00:38,547 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 16:00:38,547 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-23 16:00:38,547 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 16:00:38,548 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-23 16:00:38,548 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 16:00:38,548 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d7a26ac99d24cf78f342a00198534968a8c9a8e19670213e333d305f9460bd44 [2023-11-23 16:00:38,777 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 16:00:38,803 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 16:00:38,805 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 16:00:38,806 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 16:00:38,806 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 16:00:38,807 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-easy2-1.c [2023-11-23 16:00:39,828 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 16:00:39,996 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 16:00:39,997 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-easy2-1.c [2023-11-23 16:00:40,003 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8ec5a52f8/3a82c48109b9437fa0a94f1cd65f0ca9/FLAG5f9fa9d01 [2023-11-23 16:00:40,015 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8ec5a52f8/3a82c48109b9437fa0a94f1cd65f0ca9 [2023-11-23 16:00:40,017 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 16:00:40,017 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 16:00:40,019 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 16:00:40,019 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 16:00:40,023 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 16:00:40,024 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 04:00:40" (1/1) ... [2023-11-23 16:00:40,024 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2274f50b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:00:40, skipping insertion in model container [2023-11-23 16:00:40,024 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 04:00:40" (1/1) ... [2023-11-23 16:00:40,045 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 16:00:40,146 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 16:00:40,160 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 16:00:40,168 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 16:00:40,179 INFO L206 MainTranslator]: Completed translation [2023-11-23 16:00:40,179 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:00:40 WrapperNode [2023-11-23 16:00:40,180 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 16:00:40,181 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 16:00:40,181 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 16:00:40,181 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 16:00:40,197 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:00:40" (1/1) ... [2023-11-23 16:00:40,200 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:00:40" (1/1) ... [2023-11-23 16:00:40,216 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 23 [2023-11-23 16:00:40,217 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 16:00:40,218 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 16:00:40,218 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 16:00:40,218 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 16:00:40,226 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:00:40" (1/1) ... [2023-11-23 16:00:40,226 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:00:40" (1/1) ... [2023-11-23 16:00:40,227 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:00:40" (1/1) ... [2023-11-23 16:00:40,231 INFO L175 MemorySlicer]: No memory access in input program. [2023-11-23 16:00:40,231 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:00:40" (1/1) ... [2023-11-23 16:00:40,231 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:00:40" (1/1) ... [2023-11-23 16:00:40,236 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:00:40" (1/1) ... [2023-11-23 16:00:40,239 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:00:40" (1/1) ... [2023-11-23 16:00:40,240 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:00:40" (1/1) ... [2023-11-23 16:00:40,240 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:00:40" (1/1) ... [2023-11-23 16:00:40,241 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 16:00:40,242 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 16:00:40,242 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 16:00:40,242 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 16:00:40,243 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:00:40" (1/1) ... [2023-11-23 16:00:40,247 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 16:00:40,259 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 16:00:40,270 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-23 16:00:40,296 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-23 16:00:40,315 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 16:00:40,315 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 16:00:40,353 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 16:00:40,356 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 16:00:40,465 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 16:00:40,488 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 16:00:40,488 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-23 16:00:40,489 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 04:00:40 BoogieIcfgContainer [2023-11-23 16:00:40,489 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 16:00:40,490 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 16:00:40,490 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 16:00:40,493 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 16:00:40,493 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 04:00:40" (1/3) ... [2023-11-23 16:00:40,493 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@14cd81a3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 04:00:40, skipping insertion in model container [2023-11-23 16:00:40,493 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:00:40" (2/3) ... [2023-11-23 16:00:40,494 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@14cd81a3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 04:00:40, skipping insertion in model container [2023-11-23 16:00:40,494 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 04:00:40" (3/3) ... [2023-11-23 16:00:40,495 INFO L112 eAbstractionObserver]: Analyzing ICFG AliasDarteFeautrierGonnord-SAS2010-easy2-1.c [2023-11-23 16:00:40,507 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 16:00:40,508 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2023-11-23 16:00:40,536 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 16:00:40,541 INFO L357 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, mHoare=true, 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;@5a083a8f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 16:00:40,542 INFO L358 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2023-11-23 16:00:40,545 INFO L276 IsEmpty]: Start isEmpty. Operand has 16 states, 9 states have (on average 1.8888888888888888) internal successors, (17), 15 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 16:00:40,549 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2023-11-23 16:00:40,549 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 16:00:40,549 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2023-11-23 16:00:40,550 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-23 16:00:40,554 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 16:00:40,554 INFO L85 PathProgramCache]: Analyzing trace with hash 60896, now seen corresponding path program 1 times [2023-11-23 16:00:40,560 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 16:00:40,561 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2022920024] [2023-11-23 16:00:40,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 16:00:40,561 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 16:00:40,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 16:00:40,695 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 16:00:40,695 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 16:00:40,695 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2022920024] [2023-11-23 16:00:40,696 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2022920024] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 16:00:40,696 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 16:00:40,696 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-23 16:00:40,697 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1465494041] [2023-11-23 16:00:40,699 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 16:00:40,702 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 16:00:40,703 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 16:00:40,736 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 16:00:40,737 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 16:00:40,739 INFO L87 Difference]: Start difference. First operand has 16 states, 9 states have (on average 1.8888888888888888) internal successors, (17), 15 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 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) [2023-11-23 16:00:40,766 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 16:00:40,766 INFO L93 Difference]: Finished difference Result 18 states and 18 transitions. [2023-11-23 16:00:40,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 16:00:40,768 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 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 3 [2023-11-23 16:00:40,769 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 16:00:40,774 INFO L225 Difference]: With dead ends: 18 [2023-11-23 16:00:40,774 INFO L226 Difference]: Without dead ends: 13 [2023-11-23 16:00:40,778 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 16:00:40,783 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 11 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 10 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-23 16:00:40,784 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 10 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-23 16:00:40,801 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2023-11-23 16:00:40,812 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2023-11-23 16:00:40,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 8 states have (on average 1.625) internal successors, (13), 12 states have internal predecessors, (13), 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) [2023-11-23 16:00:40,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 13 transitions. [2023-11-23 16:00:40,815 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 13 transitions. Word has length 3 [2023-11-23 16:00:40,815 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 16:00:40,816 INFO L495 AbstractCegarLoop]: Abstraction has 13 states and 13 transitions. [2023-11-23 16:00:40,816 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 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) [2023-11-23 16:00:40,817 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 13 transitions. [2023-11-23 16:00:40,817 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-11-23 16:00:40,817 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 16:00:40,818 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2023-11-23 16:00:40,818 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-23 16:00:40,820 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-23 16:00:40,820 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 16:00:40,820 INFO L85 PathProgramCache]: Analyzing trace with hash 1887821, now seen corresponding path program 1 times [2023-11-23 16:00:40,821 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 16:00:40,821 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1359066064] [2023-11-23 16:00:40,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 16:00:40,821 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 16:00:40,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 16:00:40,873 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 16:00:40,874 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 16:00:40,874 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1359066064] [2023-11-23 16:00:40,875 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1359066064] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 16:00:40,875 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 16:00:40,875 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-23 16:00:40,875 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [224583159] [2023-11-23 16:00:40,876 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 16:00:40,876 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 16:00:40,876 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 16:00:40,877 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 16:00:40,878 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 16:00:40,878 INFO L87 Difference]: Start difference. First operand 13 states and 13 transitions. Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 16:00:40,892 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 16:00:40,893 INFO L93 Difference]: Finished difference Result 17 states and 17 transitions. [2023-11-23 16:00:40,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 16:00:40,893 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2023-11-23 16:00:40,894 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 16:00:40,894 INFO L225 Difference]: With dead ends: 17 [2023-11-23 16:00:40,895 INFO L226 Difference]: Without dead ends: 16 [2023-11-23 16:00:40,895 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 16:00:40,901 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 0 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 19 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-23 16:00:40,902 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 19 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-23 16:00:40,903 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2023-11-23 16:00:40,905 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2023-11-23 16:00:40,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 11 states have (on average 1.4545454545454546) internal successors, (16), 15 states have internal predecessors, (16), 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) [2023-11-23 16:00:40,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 16 transitions. [2023-11-23 16:00:40,908 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 16 transitions. Word has length 4 [2023-11-23 16:00:40,908 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 16:00:40,908 INFO L495 AbstractCegarLoop]: Abstraction has 16 states and 16 transitions. [2023-11-23 16:00:40,908 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 16:00:40,908 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 16 transitions. [2023-11-23 16:00:40,909 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-11-23 16:00:40,909 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 16:00:40,909 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2023-11-23 16:00:40,909 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-23 16:00:40,909 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-23 16:00:40,910 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 16:00:40,911 INFO L85 PathProgramCache]: Analyzing trace with hash 58522498, now seen corresponding path program 1 times [2023-11-23 16:00:40,911 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 16:00:40,911 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [590653075] [2023-11-23 16:00:40,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 16:00:40,912 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 16:00:40,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 16:00:40,938 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 16:00:40,938 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 16:00:40,938 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [590653075] [2023-11-23 16:00:40,938 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [590653075] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 16:00:40,939 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 16:00:40,939 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-23 16:00:40,939 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [968481387] [2023-11-23 16:00:40,939 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 16:00:40,939 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 16:00:40,940 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 16:00:40,940 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 16:00:40,940 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 16:00:40,941 INFO L87 Difference]: Start difference. First operand 16 states and 16 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 16:00:40,950 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 16:00:40,951 INFO L93 Difference]: Finished difference Result 19 states and 20 transitions. [2023-11-23 16:00:40,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 16:00:40,951 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2023-11-23 16:00:40,951 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 16:00:40,952 INFO L225 Difference]: With dead ends: 19 [2023-11-23 16:00:40,952 INFO L226 Difference]: Without dead ends: 18 [2023-11-23 16:00:40,952 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 16:00:40,953 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 2 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 17 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-23 16:00:40,953 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 17 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-23 16:00:40,954 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2023-11-23 16:00:40,955 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 17. [2023-11-23 16:00:40,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 12 states have (on average 1.4166666666666667) internal successors, (17), 16 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 16:00:40,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 17 transitions. [2023-11-23 16:00:40,956 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 17 transitions. Word has length 5 [2023-11-23 16:00:40,956 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 16:00:40,956 INFO L495 AbstractCegarLoop]: Abstraction has 17 states and 17 transitions. [2023-11-23 16:00:40,957 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 16:00:40,957 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 17 transitions. [2023-11-23 16:00:40,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-23 16:00:40,957 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 16:00:40,957 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2023-11-23 16:00:40,957 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-23 16:00:40,958 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-23 16:00:40,958 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 16:00:40,959 INFO L85 PathProgramCache]: Analyzing trace with hash 1814197487, now seen corresponding path program 1 times [2023-11-23 16:00:40,959 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 16:00:40,960 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [598062447] [2023-11-23 16:00:40,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 16:00:40,960 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 16:00:40,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 16:00:40,979 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 16:00:40,979 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 16:00:40,979 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [598062447] [2023-11-23 16:00:40,979 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [598062447] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 16:00:40,979 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 16:00:40,980 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-23 16:00:40,980 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [699216646] [2023-11-23 16:00:40,981 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 16:00:40,982 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 16:00:40,982 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 16:00:40,983 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 16:00:40,983 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 16:00:40,984 INFO L87 Difference]: Start difference. First operand 17 states and 17 transitions. Second operand has 3 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) [2023-11-23 16:00:40,999 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 16:00:40,999 INFO L93 Difference]: Finished difference Result 17 states and 17 transitions. [2023-11-23 16:00:41,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 16:00:41,001 INFO L78 Accepts]: Start accepts. Automaton has has 3 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 [2023-11-23 16:00:41,001 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 16:00:41,002 INFO L225 Difference]: With dead ends: 17 [2023-11-23 16:00:41,002 INFO L226 Difference]: Without dead ends: 16 [2023-11-23 16:00:41,003 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 16:00:41,010 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 6 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 8 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-23 16:00:41,010 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 8 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-23 16:00:41,012 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2023-11-23 16:00:41,015 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2023-11-23 16:00:41,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 12 states have (on average 1.3333333333333333) internal successors, (16), 15 states have internal predecessors, (16), 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) [2023-11-23 16:00:41,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 16 transitions. [2023-11-23 16:00:41,016 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 16 transitions. Word has length 6 [2023-11-23 16:00:41,016 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 16:00:41,016 INFO L495 AbstractCegarLoop]: Abstraction has 16 states and 16 transitions. [2023-11-23 16:00:41,016 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 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) [2023-11-23 16:00:41,017 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 16 transitions. [2023-11-23 16:00:41,017 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-23 16:00:41,017 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 16:00:41,017 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-23 16:00:41,017 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-23 16:00:41,018 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-23 16:00:41,018 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 16:00:41,018 INFO L85 PathProgramCache]: Analyzing trace with hash 405547300, now seen corresponding path program 1 times [2023-11-23 16:00:41,018 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 16:00:41,018 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [104165857] [2023-11-23 16:00:41,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 16:00:41,019 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 16:00:41,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 16:00:41,047 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 16:00:41,047 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 16:00:41,047 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [104165857] [2023-11-23 16:00:41,047 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [104165857] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 16:00:41,048 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 16:00:41,048 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 16:00:41,048 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [395583931] [2023-11-23 16:00:41,048 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 16:00:41,048 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 16:00:41,049 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 16:00:41,049 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 16:00:41,049 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 16:00:41,049 INFO L87 Difference]: Start difference. First operand 16 states and 16 transitions. Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 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) [2023-11-23 16:00:41,058 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 16:00:41,058 INFO L93 Difference]: Finished difference Result 16 states and 16 transitions. [2023-11-23 16:00:41,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 16:00:41,059 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 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 7 [2023-11-23 16:00:41,059 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 16:00:41,059 INFO L225 Difference]: With dead ends: 16 [2023-11-23 16:00:41,059 INFO L226 Difference]: Without dead ends: 15 [2023-11-23 16:00:41,059 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 16:00:41,060 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 4 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 7 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-23 16:00:41,060 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 7 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-23 16:00:41,061 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2023-11-23 16:00:41,062 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2023-11-23 16:00:41,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 12 states have (on average 1.25) internal successors, (15), 14 states have internal predecessors, (15), 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) [2023-11-23 16:00:41,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 15 transitions. [2023-11-23 16:00:41,063 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 15 transitions. Word has length 7 [2023-11-23 16:00:41,063 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 16:00:41,063 INFO L495 AbstractCegarLoop]: Abstraction has 15 states and 15 transitions. [2023-11-23 16:00:41,063 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 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) [2023-11-23 16:00:41,063 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 15 transitions. [2023-11-23 16:00:41,064 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-23 16:00:41,064 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 16:00:41,064 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 16:00:41,064 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-23 16:00:41,064 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-23 16:00:41,065 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 16:00:41,065 INFO L85 PathProgramCache]: Analyzing trace with hash -312935535, now seen corresponding path program 1 times [2023-11-23 16:00:41,065 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 16:00:41,065 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1151120769] [2023-11-23 16:00:41,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 16:00:41,065 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 16:00:41,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 16:00:41,100 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 16:00:41,101 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 16:00:41,103 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1151120769] [2023-11-23 16:00:41,103 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1151120769] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 16:00:41,103 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 16:00:41,103 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-23 16:00:41,104 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [29386886] [2023-11-23 16:00:41,104 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 16:00:41,104 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 16:00:41,104 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 16:00:41,105 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 16:00:41,105 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 16:00:41,105 INFO L87 Difference]: Start difference. First operand 15 states and 15 transitions. Second operand has 3 states, 2 states have (on average 4.0) internal successors, (8), 2 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) [2023-11-23 16:00:41,116 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 16:00:41,116 INFO L93 Difference]: Finished difference Result 15 states and 15 transitions. [2023-11-23 16:00:41,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 16:00:41,117 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 2 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 [2023-11-23 16:00:41,118 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 16:00:41,118 INFO L225 Difference]: With dead ends: 15 [2023-11-23 16:00:41,118 INFO L226 Difference]: Without dead ends: 14 [2023-11-23 16:00:41,119 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 16:00:41,119 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 2 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 6 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-23 16:00:41,120 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 6 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-23 16:00:41,121 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2023-11-23 16:00:41,123 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2023-11-23 16:00:41,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 12 states have (on average 1.1666666666666667) internal successors, (14), 13 states have internal predecessors, (14), 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) [2023-11-23 16:00:41,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 14 transitions. [2023-11-23 16:00:41,128 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 14 transitions. Word has length 8 [2023-11-23 16:00:41,128 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 16:00:41,128 INFO L495 AbstractCegarLoop]: Abstraction has 14 states and 14 transitions. [2023-11-23 16:00:41,128 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 2 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) [2023-11-23 16:00:41,128 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 14 transitions. [2023-11-23 16:00:41,129 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-11-23 16:00:41,129 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 16:00:41,130 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 16:00:41,130 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-23 16:00:41,130 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-23 16:00:41,131 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 16:00:41,131 INFO L85 PathProgramCache]: Analyzing trace with hash 1711517210, now seen corresponding path program 1 times [2023-11-23 16:00:41,131 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 16:00:41,131 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1939046463] [2023-11-23 16:00:41,131 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 16:00:41,132 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 16:00:41,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 16:00:41,183 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 16:00:41,184 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 16:00:41,184 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1939046463] [2023-11-23 16:00:41,184 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1939046463] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 16:00:41,184 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [653009490] [2023-11-23 16:00:41,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 16:00:41,185 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 16:00:41,185 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 16:00:41,186 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) [2023-11-23 16:00:41,219 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-23 16:00:41,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 16:00:41,229 INFO L262 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-23 16:00:41,232 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 16:00:41,282 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 16:00:41,282 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 16:00:41,325 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 16:00:41,325 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [653009490] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-23 16:00:41,325 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-23 16:00:41,325 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 2, 2] total 4 [2023-11-23 16:00:41,326 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2070350972] [2023-11-23 16:00:41,326 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-23 16:00:41,326 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-23 16:00:41,326 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 16:00:41,327 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-23 16:00:41,327 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-23 16:00:41,328 INFO L87 Difference]: Start difference. First operand 14 states and 14 transitions. Second operand has 6 states, 5 states have (on average 4.4) internal successors, (22), 5 states have internal predecessors, (22), 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) [2023-11-23 16:00:41,355 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 16:00:41,355 INFO L93 Difference]: Finished difference Result 37 states and 39 transitions. [2023-11-23 16:00:41,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-23 16:00:41,355 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 4.4) internal successors, (22), 5 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2023-11-23 16:00:41,356 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 16:00:41,356 INFO L225 Difference]: With dead ends: 37 [2023-11-23 16:00:41,356 INFO L226 Difference]: Without dead ends: 36 [2023-11-23 16:00:41,357 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-23 16:00:41,357 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 7 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 30 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-23 16:00:41,357 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 30 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-23 16:00:41,358 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2023-11-23 16:00:41,360 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 34. [2023-11-23 16:00:41,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34 states, 32 states have (on average 1.125) internal successors, (36), 33 states have internal predecessors, (36), 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) [2023-11-23 16:00:41,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 36 transitions. [2023-11-23 16:00:41,361 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 36 transitions. Word has length 11 [2023-11-23 16:00:41,362 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 16:00:41,362 INFO L495 AbstractCegarLoop]: Abstraction has 34 states and 36 transitions. [2023-11-23 16:00:41,362 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 4.4) internal successors, (22), 5 states have internal predecessors, (22), 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) [2023-11-23 16:00:41,362 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 36 transitions. [2023-11-23 16:00:41,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-11-23 16:00:41,362 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 16:00:41,363 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1] [2023-11-23 16:00:41,376 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2023-11-23 16:00:41,573 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 16:00:41,574 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-23 16:00:41,574 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 16:00:41,574 INFO L85 PathProgramCache]: Analyzing trace with hash 1517426005, now seen corresponding path program 1 times [2023-11-23 16:00:41,575 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 16:00:41,575 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [162113573] [2023-11-23 16:00:41,575 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 16:00:41,575 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 16:00:41,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 16:00:41,625 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 16:00:41,625 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 16:00:41,625 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [162113573] [2023-11-23 16:00:41,625 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [162113573] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 16:00:41,625 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1459690217] [2023-11-23 16:00:41,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 16:00:41,625 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 16:00:41,626 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 16:00:41,626 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) [2023-11-23 16:00:41,628 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-23 16:00:41,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 16:00:41,650 INFO L262 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-23 16:00:41,651 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 16:00:41,667 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 16:00:41,668 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 16:00:41,701 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 16:00:41,702 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1459690217] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-23 16:00:41,702 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-23 16:00:41,702 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 2, 2] total 4 [2023-11-23 16:00:41,702 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [411660630] [2023-11-23 16:00:41,702 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-23 16:00:41,703 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-23 16:00:41,703 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 16:00:41,704 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-23 16:00:41,705 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-23 16:00:41,706 INFO L87 Difference]: Start difference. First operand 34 states and 36 transitions. Second operand has 6 states, 5 states have (on average 4.8) internal successors, (24), 5 states have internal predecessors, (24), 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) [2023-11-23 16:00:41,736 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 16:00:41,737 INFO L93 Difference]: Finished difference Result 36 states and 38 transitions. [2023-11-23 16:00:41,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-23 16:00:41,737 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 4.8) internal successors, (24), 5 states have internal predecessors, (24), 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 12 [2023-11-23 16:00:41,737 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 16:00:41,738 INFO L225 Difference]: With dead ends: 36 [2023-11-23 16:00:41,738 INFO L226 Difference]: Without dead ends: 35 [2023-11-23 16:00:41,738 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-23 16:00:41,739 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 4 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 29 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-23 16:00:41,739 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 29 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-23 16:00:41,739 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2023-11-23 16:00:41,742 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2023-11-23 16:00:41,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 33 states have (on average 1.0606060606060606) internal successors, (35), 34 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 16:00:41,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 35 transitions. [2023-11-23 16:00:41,743 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 35 transitions. Word has length 12 [2023-11-23 16:00:41,743 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 16:00:41,743 INFO L495 AbstractCegarLoop]: Abstraction has 35 states and 35 transitions. [2023-11-23 16:00:41,744 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 4.8) internal successors, (24), 5 states have internal predecessors, (24), 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) [2023-11-23 16:00:41,744 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 35 transitions. [2023-11-23 16:00:41,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-11-23 16:00:41,744 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 16:00:41,745 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 1, 1] [2023-11-23 16:00:41,756 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-23 16:00:41,948 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2023-11-23 16:00:41,948 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-23 16:00:41,949 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 16:00:41,949 INFO L85 PathProgramCache]: Analyzing trace with hash -722565875, now seen corresponding path program 2 times [2023-11-23 16:00:41,949 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 16:00:41,949 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1118394709] [2023-11-23 16:00:41,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 16:00:41,949 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 16:00:41,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 16:00:42,067 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 0 proven. 54 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 16:00:42,068 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 16:00:42,068 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1118394709] [2023-11-23 16:00:42,068 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1118394709] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 16:00:42,068 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [420728339] [2023-11-23 16:00:42,069 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-23 16:00:42,069 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 16:00:42,069 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 16:00:42,070 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) [2023-11-23 16:00:42,094 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-23 16:00:42,100 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-23 16:00:42,101 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-23 16:00:42,105 INFO L262 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-23 16:00:42,106 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 16:00:42,158 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 0 proven. 54 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 16:00:42,158 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 16:00:42,228 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 0 proven. 54 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 16:00:42,228 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [420728339] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-23 16:00:42,228 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-23 16:00:42,228 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2023-11-23 16:00:42,228 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [567878816] [2023-11-23 16:00:42,228 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-23 16:00:42,229 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-23 16:00:42,229 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 16:00:42,229 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-23 16:00:42,230 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2023-11-23 16:00:42,230 INFO L87 Difference]: Start difference. First operand 35 states and 35 transitions. Second operand has 12 states, 11 states have (on average 5.818181818181818) internal successors, (64), 11 states have internal predecessors, (64), 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) [2023-11-23 16:00:42,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 16:00:42,275 INFO L93 Difference]: Finished difference Result 82 states and 87 transitions. [2023-11-23 16:00:42,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-23 16:00:42,276 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 5.818181818181818) internal successors, (64), 11 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 32 [2023-11-23 16:00:42,276 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 16:00:42,279 INFO L225 Difference]: With dead ends: 82 [2023-11-23 16:00:42,280 INFO L226 Difference]: Without dead ends: 81 [2023-11-23 16:00:42,280 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2023-11-23 16:00:42,282 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 15 mSDsluCounter, 57 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 64 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-23 16:00:42,282 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 64 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-23 16:00:42,284 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81 states. [2023-11-23 16:00:42,302 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81 to 76. [2023-11-23 16:00:42,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 76 states, 74 states have (on average 1.0945945945945945) internal successors, (81), 75 states have internal predecessors, (81), 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) [2023-11-23 16:00:42,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 81 transitions. [2023-11-23 16:00:42,305 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 81 transitions. Word has length 32 [2023-11-23 16:00:42,305 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 16:00:42,305 INFO L495 AbstractCegarLoop]: Abstraction has 76 states and 81 transitions. [2023-11-23 16:00:42,305 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 5.818181818181818) internal successors, (64), 11 states have internal predecessors, (64), 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) [2023-11-23 16:00:42,305 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 81 transitions. [2023-11-23 16:00:42,306 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2023-11-23 16:00:42,306 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 16:00:42,306 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 4, 4, 4, 1, 1] [2023-11-23 16:00:42,323 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-11-23 16:00:42,520 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 16:00:42,520 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-23 16:00:42,521 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 16:00:42,521 INFO L85 PathProgramCache]: Analyzing trace with hash -924705598, now seen corresponding path program 2 times [2023-11-23 16:00:42,521 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 16:00:42,521 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1810485002] [2023-11-23 16:00:42,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 16:00:42,521 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 16:00:42,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 16:00:42,605 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 58 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 16:00:42,605 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 16:00:42,605 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1810485002] [2023-11-23 16:00:42,605 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1810485002] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 16:00:42,606 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [84192957] [2023-11-23 16:00:42,606 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-23 16:00:42,606 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 16:00:42,606 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 16:00:42,607 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) [2023-11-23 16:00:42,623 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-23 16:00:42,645 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-23 16:00:42,645 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-23 16:00:42,646 INFO L262 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-23 16:00:42,647 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 16:00:42,691 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 58 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 16:00:42,691 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 16:00:42,839 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 58 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 16:00:42,839 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [84192957] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-23 16:00:42,840 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-23 16:00:42,840 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2023-11-23 16:00:42,840 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [758493627] [2023-11-23 16:00:42,840 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-23 16:00:42,840 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-23 16:00:42,840 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 16:00:42,841 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-23 16:00:42,841 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2023-11-23 16:00:42,842 INFO L87 Difference]: Start difference. First operand 76 states and 81 transitions. Second operand has 12 states, 11 states have (on average 6.0) internal successors, (66), 11 states have internal predecessors, (66), 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) [2023-11-23 16:00:42,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 16:00:42,884 INFO L93 Difference]: Finished difference Result 78 states and 83 transitions. [2023-11-23 16:00:42,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-23 16:00:42,884 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 6.0) internal successors, (66), 11 states have internal predecessors, (66), 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 33 [2023-11-23 16:00:42,885 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 16:00:42,885 INFO L225 Difference]: With dead ends: 78 [2023-11-23 16:00:42,885 INFO L226 Difference]: Without dead ends: 77 [2023-11-23 16:00:42,885 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2023-11-23 16:00:42,886 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 4 mSDsluCounter, 54 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 61 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-23 16:00:42,886 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 61 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-23 16:00:42,887 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2023-11-23 16:00:42,890 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 77. [2023-11-23 16:00:42,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77 states, 75 states have (on average 1.0266666666666666) internal successors, (77), 76 states have internal predecessors, (77), 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) [2023-11-23 16:00:42,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 77 transitions. [2023-11-23 16:00:42,891 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 77 transitions. Word has length 33 [2023-11-23 16:00:42,891 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 16:00:42,891 INFO L495 AbstractCegarLoop]: Abstraction has 77 states and 77 transitions. [2023-11-23 16:00:42,892 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 6.0) internal successors, (66), 11 states have internal predecessors, (66), 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) [2023-11-23 16:00:42,892 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 77 transitions. [2023-11-23 16:00:42,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2023-11-23 16:00:42,893 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 16:00:42,893 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 10, 10, 10, 10, 10, 1, 1] [2023-11-23 16:00:42,908 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-11-23 16:00:43,107 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 16:00:43,107 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-23 16:00:43,108 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 16:00:43,108 INFO L85 PathProgramCache]: Analyzing trace with hash -1320088787, now seen corresponding path program 3 times [2023-11-23 16:00:43,108 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 16:00:43,108 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1455559159] [2023-11-23 16:00:43,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 16:00:43,108 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 16:00:43,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 16:00:43,290 INFO L134 CoverageAnalysis]: Checked inductivity of 345 backedges. 0 proven. 345 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 16:00:43,290 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 16:00:43,290 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1455559159] [2023-11-23 16:00:43,290 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1455559159] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 16:00:43,291 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [375436511] [2023-11-23 16:00:43,291 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-23 16:00:43,291 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 16:00:43,291 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 16:00:43,292 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) [2023-11-23 16:00:43,294 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-23 16:00:43,339 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2023-11-23 16:00:43,339 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-23 16:00:43,340 INFO L262 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 12 conjunts are in the unsatisfiable core [2023-11-23 16:00:43,341 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 16:00:43,438 INFO L134 CoverageAnalysis]: Checked inductivity of 345 backedges. 0 proven. 345 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 16:00:43,438 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 16:00:43,709 INFO L134 CoverageAnalysis]: Checked inductivity of 345 backedges. 0 proven. 345 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 16:00:43,710 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [375436511] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-23 16:00:43,710 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-23 16:00:43,710 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 22 [2023-11-23 16:00:43,712 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [810588421] [2023-11-23 16:00:43,712 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-23 16:00:43,713 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2023-11-23 16:00:43,713 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 16:00:43,714 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2023-11-23 16:00:43,715 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=276, Invalid=276, Unknown=0, NotChecked=0, Total=552 [2023-11-23 16:00:43,716 INFO L87 Difference]: Start difference. First operand 77 states and 77 transitions. Second operand has 24 states, 23 states have (on average 6.434782608695652) internal successors, (148), 23 states have internal predecessors, (148), 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) [2023-11-23 16:00:43,780 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 16:00:43,781 INFO L93 Difference]: Finished difference Result 172 states and 183 transitions. [2023-11-23 16:00:43,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-11-23 16:00:43,781 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 23 states have (on average 6.434782608695652) internal successors, (148), 23 states have internal predecessors, (148), 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 74 [2023-11-23 16:00:43,783 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 16:00:43,784 INFO L225 Difference]: With dead ends: 172 [2023-11-23 16:00:43,784 INFO L226 Difference]: Without dead ends: 171 [2023-11-23 16:00:43,786 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 157 GetRequests, 135 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=276, Invalid=276, Unknown=0, NotChecked=0, Total=552 [2023-11-23 16:00:43,786 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 25 mSDsluCounter, 122 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 129 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-23 16:00:43,787 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 129 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-23 16:00:43,788 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 171 states. [2023-11-23 16:00:43,808 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 171 to 160. [2023-11-23 16:00:43,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 160 states, 158 states have (on average 1.0822784810126582) internal successors, (171), 159 states have internal predecessors, (171), 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) [2023-11-23 16:00:43,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160 states to 160 states and 171 transitions. [2023-11-23 16:00:43,809 INFO L78 Accepts]: Start accepts. Automaton has 160 states and 171 transitions. Word has length 74 [2023-11-23 16:00:43,809 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 16:00:43,809 INFO L495 AbstractCegarLoop]: Abstraction has 160 states and 171 transitions. [2023-11-23 16:00:43,810 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 23 states have (on average 6.434782608695652) internal successors, (148), 23 states have internal predecessors, (148), 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) [2023-11-23 16:00:43,810 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states and 171 transitions. [2023-11-23 16:00:43,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2023-11-23 16:00:43,811 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 16:00:43,811 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 10, 10, 10, 10, 1, 1] [2023-11-23 16:00:43,825 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-11-23 16:00:44,023 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2023-11-23 16:00:44,023 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-23 16:00:44,024 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 16:00:44,024 INFO L85 PathProgramCache]: Analyzing trace with hash 2026920610, now seen corresponding path program 3 times [2023-11-23 16:00:44,024 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 16:00:44,024 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [201110080] [2023-11-23 16:00:44,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 16:00:44,024 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 16:00:44,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 16:00:44,220 INFO L134 CoverageAnalysis]: Checked inductivity of 355 backedges. 0 proven. 355 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 16:00:44,220 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 16:00:44,220 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [201110080] [2023-11-23 16:00:44,221 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [201110080] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 16:00:44,221 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1871319294] [2023-11-23 16:00:44,221 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-23 16:00:44,221 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 16:00:44,221 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 16:00:44,233 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) [2023-11-23 16:00:44,235 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-11-23 16:00:44,276 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2023-11-23 16:00:44,276 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-23 16:00:44,277 INFO L262 TraceCheckSpWp]: Trace formula consists of 144 conjuncts, 12 conjunts are in the unsatisfiable core [2023-11-23 16:00:44,281 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 16:00:44,359 INFO L134 CoverageAnalysis]: Checked inductivity of 355 backedges. 0 proven. 355 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 16:00:44,359 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 16:00:44,550 INFO L134 CoverageAnalysis]: Checked inductivity of 355 backedges. 0 proven. 355 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 16:00:44,550 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1871319294] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-23 16:00:44,551 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-23 16:00:44,551 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 22 [2023-11-23 16:00:44,551 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1749815622] [2023-11-23 16:00:44,552 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-23 16:00:44,552 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2023-11-23 16:00:44,552 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 16:00:44,553 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2023-11-23 16:00:44,553 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=276, Invalid=276, Unknown=0, NotChecked=0, Total=552 [2023-11-23 16:00:44,553 INFO L87 Difference]: Start difference. First operand 160 states and 171 transitions. Second operand has 24 states, 23 states have (on average 6.521739130434782) internal successors, (150), 23 states have internal predecessors, (150), 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) [2023-11-23 16:00:44,600 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 16:00:44,600 INFO L93 Difference]: Finished difference Result 162 states and 173 transitions. [2023-11-23 16:00:44,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-11-23 16:00:44,601 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 23 states have (on average 6.521739130434782) internal successors, (150), 23 states have internal predecessors, (150), 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 75 [2023-11-23 16:00:44,601 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 16:00:44,602 INFO L225 Difference]: With dead ends: 162 [2023-11-23 16:00:44,602 INFO L226 Difference]: Without dead ends: 161 [2023-11-23 16:00:44,602 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 159 GetRequests, 137 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=276, Invalid=276, Unknown=0, NotChecked=0, Total=552 [2023-11-23 16:00:44,603 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 4 mSDsluCounter, 116 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 123 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-23 16:00:44,603 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 123 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-23 16:00:44,604 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 161 states. [2023-11-23 16:00:44,616 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 161 to 161. [2023-11-23 16:00:44,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 161 states, 159 states have (on average 1.0125786163522013) internal successors, (161), 160 states have internal predecessors, (161), 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) [2023-11-23 16:00:44,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 161 states to 161 states and 161 transitions. [2023-11-23 16:00:44,624 INFO L78 Accepts]: Start accepts. Automaton has 161 states and 161 transitions. Word has length 75 [2023-11-23 16:00:44,636 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 16:00:44,636 INFO L495 AbstractCegarLoop]: Abstraction has 161 states and 161 transitions. [2023-11-23 16:00:44,636 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 23 states have (on average 6.521739130434782) internal successors, (150), 23 states have internal predecessors, (150), 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) [2023-11-23 16:00:44,636 INFO L276 IsEmpty]: Start isEmpty. Operand 161 states and 161 transitions. [2023-11-23 16:00:44,639 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2023-11-23 16:00:44,639 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 16:00:44,639 INFO L195 NwaCegarLoop]: trace histogram [23, 23, 22, 22, 22, 22, 22, 1, 1] [2023-11-23 16:00:44,664 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-11-23 16:00:44,851 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 16:00:44,851 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-23 16:00:44,851 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 16:00:44,851 INFO L85 PathProgramCache]: Analyzing trace with hash 1637556077, now seen corresponding path program 4 times [2023-11-23 16:00:44,852 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 16:00:44,852 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1199715082] [2023-11-23 16:00:44,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 16:00:44,852 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 16:00:44,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 16:00:45,315 INFO L134 CoverageAnalysis]: Checked inductivity of 1683 backedges. 0 proven. 1683 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 16:00:45,316 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 16:00:45,316 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1199715082] [2023-11-23 16:00:45,316 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1199715082] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 16:00:45,316 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [532575363] [2023-11-23 16:00:45,316 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-11-23 16:00:45,316 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 16:00:45,317 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 16:00:45,317 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) [2023-11-23 16:00:45,319 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-11-23 16:00:45,383 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-11-23 16:00:45,383 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-23 16:00:45,384 INFO L262 TraceCheckSpWp]: Trace formula consists of 297 conjuncts, 24 conjunts are in the unsatisfiable core [2023-11-23 16:00:45,392 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 16:00:45,529 INFO L134 CoverageAnalysis]: Checked inductivity of 1683 backedges. 0 proven. 1683 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 16:00:45,529 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 16:00:46,212 INFO L134 CoverageAnalysis]: Checked inductivity of 1683 backedges. 0 proven. 1683 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 16:00:46,212 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [532575363] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-23 16:00:46,212 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-23 16:00:46,212 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 23, 23] total 46 [2023-11-23 16:00:46,213 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1221632231] [2023-11-23 16:00:46,213 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-23 16:00:46,213 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 48 states [2023-11-23 16:00:46,214 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 16:00:46,215 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2023-11-23 16:00:46,215 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1128, Invalid=1128, Unknown=0, NotChecked=0, Total=2256 [2023-11-23 16:00:46,216 INFO L87 Difference]: Start difference. First operand 161 states and 161 transitions. Second operand has 48 states, 47 states have (on average 6.723404255319149) internal successors, (316), 47 states have internal predecessors, (316), 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) [2023-11-23 16:00:46,343 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 16:00:46,344 INFO L93 Difference]: Finished difference Result 352 states and 375 transitions. [2023-11-23 16:00:46,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2023-11-23 16:00:46,344 INFO L78 Accepts]: Start accepts. Automaton has has 48 states, 47 states have (on average 6.723404255319149) internal successors, (316), 47 states have internal predecessors, (316), 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 158 [2023-11-23 16:00:46,345 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 16:00:46,346 INFO L225 Difference]: With dead ends: 352 [2023-11-23 16:00:46,346 INFO L226 Difference]: Without dead ends: 351 [2023-11-23 16:00:46,347 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 337 GetRequests, 291 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=1128, Invalid=1128, Unknown=0, NotChecked=0, Total=2256 [2023-11-23 16:00:46,347 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 71 mSDsluCounter, 258 mSDsCounter, 0 mSdLazyCounter, 100 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 265 SdHoareTripleChecker+Invalid, 101 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 100 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-23 16:00:46,348 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [71 Valid, 265 Invalid, 101 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 100 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-23 16:00:46,349 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 351 states. [2023-11-23 16:00:46,354 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 351 to 328. [2023-11-23 16:00:46,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 328 states, 326 states have (on average 1.0766871165644172) internal successors, (351), 327 states have internal predecessors, (351), 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) [2023-11-23 16:00:46,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 328 states to 328 states and 351 transitions. [2023-11-23 16:00:46,356 INFO L78 Accepts]: Start accepts. Automaton has 328 states and 351 transitions. Word has length 158 [2023-11-23 16:00:46,356 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 16:00:46,356 INFO L495 AbstractCegarLoop]: Abstraction has 328 states and 351 transitions. [2023-11-23 16:00:46,356 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 48 states, 47 states have (on average 6.723404255319149) internal successors, (316), 47 states have internal predecessors, (316), 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) [2023-11-23 16:00:46,356 INFO L276 IsEmpty]: Start isEmpty. Operand 328 states and 351 transitions. [2023-11-23 16:00:46,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2023-11-23 16:00:46,361 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 16:00:46,361 INFO L195 NwaCegarLoop]: trace histogram [23, 23, 23, 22, 22, 22, 22, 1, 1] [2023-11-23 16:00:46,375 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-11-23 16:00:46,568 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 16:00:46,569 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-23 16:00:46,569 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 16:00:46,569 INFO L85 PathProgramCache]: Analyzing trace with hash -775369118, now seen corresponding path program 4 times [2023-11-23 16:00:46,569 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 16:00:46,569 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [360493782] [2023-11-23 16:00:46,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 16:00:46,570 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 16:00:46,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 16:00:47,123 INFO L134 CoverageAnalysis]: Checked inductivity of 1705 backedges. 0 proven. 1705 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 16:00:47,123 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 16:00:47,123 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [360493782] [2023-11-23 16:00:47,124 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [360493782] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 16:00:47,124 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [609177061] [2023-11-23 16:00:47,124 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-11-23 16:00:47,124 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 16:00:47,124 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 16:00:47,125 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) [2023-11-23 16:00:47,144 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-11-23 16:00:47,193 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-11-23 16:00:47,193 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-23 16:00:47,194 INFO L262 TraceCheckSpWp]: Trace formula consists of 300 conjuncts, 24 conjunts are in the unsatisfiable core [2023-11-23 16:00:47,196 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 16:00:47,316 INFO L134 CoverageAnalysis]: Checked inductivity of 1705 backedges. 0 proven. 1705 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 16:00:47,317 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 16:00:48,033 INFO L134 CoverageAnalysis]: Checked inductivity of 1705 backedges. 0 proven. 1705 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 16:00:48,033 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [609177061] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-23 16:00:48,034 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-23 16:00:48,034 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 23, 23] total 46 [2023-11-23 16:00:48,034 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1826016660] [2023-11-23 16:00:48,034 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-23 16:00:48,034 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 48 states [2023-11-23 16:00:48,035 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 16:00:48,035 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2023-11-23 16:00:48,036 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1128, Invalid=1128, Unknown=0, NotChecked=0, Total=2256 [2023-11-23 16:00:48,036 INFO L87 Difference]: Start difference. First operand 328 states and 351 transitions. Second operand has 48 states, 47 states have (on average 6.76595744680851) internal successors, (318), 47 states have internal predecessors, (318), 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) [2023-11-23 16:00:48,136 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 16:00:48,136 INFO L93 Difference]: Finished difference Result 330 states and 353 transitions. [2023-11-23 16:00:48,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2023-11-23 16:00:48,137 INFO L78 Accepts]: Start accepts. Automaton has has 48 states, 47 states have (on average 6.76595744680851) internal successors, (318), 47 states have internal predecessors, (318), 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 159 [2023-11-23 16:00:48,137 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 16:00:48,138 INFO L225 Difference]: With dead ends: 330 [2023-11-23 16:00:48,138 INFO L226 Difference]: Without dead ends: 329 [2023-11-23 16:00:48,139 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 339 GetRequests, 293 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=1128, Invalid=1128, Unknown=0, NotChecked=0, Total=2256 [2023-11-23 16:00:48,139 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 4 mSDsluCounter, 236 mSDsCounter, 0 mSdLazyCounter, 100 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 243 SdHoareTripleChecker+Invalid, 102 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 100 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-23 16:00:48,139 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 243 Invalid, 102 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 100 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-23 16:00:48,140 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 329 states. [2023-11-23 16:00:48,155 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 329 to 329. [2023-11-23 16:00:48,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 329 states, 327 states have (on average 1.0061162079510704) internal successors, (329), 328 states have internal predecessors, (329), 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) [2023-11-23 16:00:48,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 329 states to 329 states and 329 transitions. [2023-11-23 16:00:48,156 INFO L78 Accepts]: Start accepts. Automaton has 329 states and 329 transitions. Word has length 159 [2023-11-23 16:00:48,157 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 16:00:48,157 INFO L495 AbstractCegarLoop]: Abstraction has 329 states and 329 transitions. [2023-11-23 16:00:48,157 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 48 states, 47 states have (on average 6.76595744680851) internal successors, (318), 47 states have internal predecessors, (318), 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) [2023-11-23 16:00:48,157 INFO L276 IsEmpty]: Start isEmpty. Operand 329 states and 329 transitions. [2023-11-23 16:00:48,160 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 327 [2023-11-23 16:00:48,160 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 16:00:48,160 INFO L195 NwaCegarLoop]: trace histogram [47, 47, 46, 46, 46, 46, 46, 1, 1] [2023-11-23 16:00:48,190 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2023-11-23 16:00:48,368 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2023-11-23 16:00:48,369 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-23 16:00:48,369 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 16:00:48,369 INFO L85 PathProgramCache]: Analyzing trace with hash 79390701, now seen corresponding path program 5 times [2023-11-23 16:00:48,369 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 16:00:48,369 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2039210254] [2023-11-23 16:00:48,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 16:00:48,369 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 16:00:48,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 16:00:49,855 INFO L134 CoverageAnalysis]: Checked inductivity of 7383 backedges. 0 proven. 7383 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 16:00:49,855 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 16:00:49,855 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2039210254] [2023-11-23 16:00:49,856 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2039210254] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 16:00:49,856 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [554807295] [2023-11-23 16:00:49,856 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2023-11-23 16:00:49,856 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 16:00:49,856 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 16:00:49,857 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 16:00:49,861 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-11-23 16:00:49,996 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 47 check-sat command(s) [2023-11-23 16:00:49,996 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-23 16:00:49,999 INFO L262 TraceCheckSpWp]: Trace formula consists of 609 conjuncts, 48 conjunts are in the unsatisfiable core [2023-11-23 16:00:50,003 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 16:00:50,276 INFO L134 CoverageAnalysis]: Checked inductivity of 7383 backedges. 0 proven. 7383 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 16:00:50,276 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 16:00:52,671 INFO L134 CoverageAnalysis]: Checked inductivity of 7383 backedges. 0 proven. 7383 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 16:00:52,672 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [554807295] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-23 16:00:52,672 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-23 16:00:52,672 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [47, 47, 47] total 94 [2023-11-23 16:00:52,672 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [693545268] [2023-11-23 16:00:52,672 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-23 16:00:52,673 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 96 states [2023-11-23 16:00:52,673 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 16:00:52,676 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 96 interpolants. [2023-11-23 16:00:52,681 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=4560, Invalid=4560, Unknown=0, NotChecked=0, Total=9120 [2023-11-23 16:00:52,682 INFO L87 Difference]: Start difference. First operand 329 states and 329 transitions. Second operand has 96 states, 95 states have (on average 6.863157894736842) internal successors, (652), 95 states have internal predecessors, (652), 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) [2023-11-23 16:00:53,104 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 16:00:53,105 INFO L93 Difference]: Finished difference Result 712 states and 759 transitions. [2023-11-23 16:00:53,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 96 states. [2023-11-23 16:00:53,106 INFO L78 Accepts]: Start accepts. Automaton has has 96 states, 95 states have (on average 6.863157894736842) internal successors, (652), 95 states have internal predecessors, (652), 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 326 [2023-11-23 16:00:53,106 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 16:00:53,110 INFO L225 Difference]: With dead ends: 712 [2023-11-23 16:00:53,110 INFO L226 Difference]: Without dead ends: 711 [2023-11-23 16:00:53,113 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 697 GetRequests, 603 SyntacticMatches, 0 SemanticMatches, 94 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=4560, Invalid=4560, Unknown=0, NotChecked=0, Total=9120 [2023-11-23 16:00:53,113 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 155 mSDsluCounter, 525 mSDsCounter, 0 mSdLazyCounter, 198 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 155 SdHoareTripleChecker+Valid, 532 SdHoareTripleChecker+Invalid, 199 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 198 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-23 16:00:53,114 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [155 Valid, 532 Invalid, 199 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 198 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-23 16:00:53,115 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 711 states. [2023-11-23 16:00:53,128 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 711 to 664. [2023-11-23 16:00:53,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 664 states, 662 states have (on average 1.0740181268882176) internal successors, (711), 663 states have internal predecessors, (711), 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) [2023-11-23 16:00:53,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 664 states to 664 states and 711 transitions. [2023-11-23 16:00:53,132 INFO L78 Accepts]: Start accepts. Automaton has 664 states and 711 transitions. Word has length 326 [2023-11-23 16:00:53,133 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 16:00:53,133 INFO L495 AbstractCegarLoop]: Abstraction has 664 states and 711 transitions. [2023-11-23 16:00:53,133 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 96 states, 95 states have (on average 6.863157894736842) internal successors, (652), 95 states have internal predecessors, (652), 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) [2023-11-23 16:00:53,133 INFO L276 IsEmpty]: Start isEmpty. Operand 664 states and 711 transitions. [2023-11-23 16:00:53,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 328 [2023-11-23 16:00:53,136 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 16:00:53,137 INFO L195 NwaCegarLoop]: trace histogram [47, 47, 47, 46, 46, 46, 46, 1, 1] [2023-11-23 16:00:53,161 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2023-11-23 16:00:53,352 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2023-11-23 16:00:53,352 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-23 16:00:53,353 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 16:00:53,353 INFO L85 PathProgramCache]: Analyzing trace with hash -1833855518, now seen corresponding path program 5 times [2023-11-23 16:00:53,353 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 16:00:53,353 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [445944101] [2023-11-23 16:00:53,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 16:00:53,353 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 16:00:53,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 16:00:54,891 INFO L134 CoverageAnalysis]: Checked inductivity of 7429 backedges. 0 proven. 7429 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 16:00:54,891 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 16:00:54,891 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [445944101] [2023-11-23 16:00:54,891 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [445944101] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 16:00:54,891 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [708584884] [2023-11-23 16:00:54,891 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2023-11-23 16:00:54,892 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 16:00:54,892 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 16:00:54,893 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 16:00:54,902 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-11-23 16:00:55,006 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 47 check-sat command(s) [2023-11-23 16:00:55,006 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-23 16:00:55,008 INFO L262 TraceCheckSpWp]: Trace formula consists of 612 conjuncts, 48 conjunts are in the unsatisfiable core [2023-11-23 16:00:55,011 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 16:00:55,340 INFO L134 CoverageAnalysis]: Checked inductivity of 7429 backedges. 0 proven. 7429 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 16:00:55,340 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 16:00:57,833 INFO L134 CoverageAnalysis]: Checked inductivity of 7429 backedges. 0 proven. 7429 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 16:00:57,834 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [708584884] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-23 16:00:57,834 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-23 16:00:57,834 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [47, 47, 47] total 94 [2023-11-23 16:00:57,834 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [521314173] [2023-11-23 16:00:57,834 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-23 16:00:57,835 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 96 states [2023-11-23 16:00:57,835 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 16:00:57,852 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 96 interpolants. [2023-11-23 16:00:57,854 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=4560, Invalid=4560, Unknown=0, NotChecked=0, Total=9120 [2023-11-23 16:00:57,855 INFO L87 Difference]: Start difference. First operand 664 states and 711 transitions. Second operand has 96 states, 95 states have (on average 6.88421052631579) internal successors, (654), 95 states have internal predecessors, (654), 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) [2023-11-23 16:00:58,157 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 16:00:58,157 INFO L93 Difference]: Finished difference Result 666 states and 713 transitions. [2023-11-23 16:00:58,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 96 states. [2023-11-23 16:00:58,163 INFO L78 Accepts]: Start accepts. Automaton has has 96 states, 95 states have (on average 6.88421052631579) internal successors, (654), 95 states have internal predecessors, (654), 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 327 [2023-11-23 16:00:58,163 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 16:00:58,165 INFO L225 Difference]: With dead ends: 666 [2023-11-23 16:00:58,165 INFO L226 Difference]: Without dead ends: 665 [2023-11-23 16:00:58,167 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 699 GetRequests, 605 SyntacticMatches, 0 SemanticMatches, 94 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=4560, Invalid=4560, Unknown=0, NotChecked=0, Total=9120 [2023-11-23 16:00:58,167 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 4 mSDsluCounter, 475 mSDsCounter, 0 mSdLazyCounter, 195 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 482 SdHoareTripleChecker+Invalid, 197 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 195 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-23 16:00:58,168 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 482 Invalid, 197 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 195 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-23 16:00:58,168 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 665 states. [2023-11-23 16:00:58,178 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 665 to 665. [2023-11-23 16:00:58,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 665 states, 663 states have (on average 1.0030165912518854) internal successors, (665), 664 states have internal predecessors, (665), 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) [2023-11-23 16:00:58,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 665 states to 665 states and 665 transitions. [2023-11-23 16:00:58,180 INFO L78 Accepts]: Start accepts. Automaton has 665 states and 665 transitions. Word has length 327 [2023-11-23 16:00:58,180 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 16:00:58,180 INFO L495 AbstractCegarLoop]: Abstraction has 665 states and 665 transitions. [2023-11-23 16:00:58,181 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 96 states, 95 states have (on average 6.88421052631579) internal successors, (654), 95 states have internal predecessors, (654), 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) [2023-11-23 16:00:58,181 INFO L276 IsEmpty]: Start isEmpty. Operand 665 states and 665 transitions. [2023-11-23 16:00:58,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 663 [2023-11-23 16:00:58,205 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 16:00:58,205 INFO L195 NwaCegarLoop]: trace histogram [95, 95, 94, 94, 94, 94, 94, 1, 1] [2023-11-23 16:00:58,216 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2023-11-23 16:00:58,416 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2023-11-23 16:00:58,417 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-23 16:00:58,417 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 16:00:58,417 INFO L85 PathProgramCache]: Analyzing trace with hash -1528006419, now seen corresponding path program 6 times [2023-11-23 16:00:58,417 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 16:00:58,417 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1939321633] [2023-11-23 16:00:58,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 16:00:58,417 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 16:00:58,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 16:01:04,099 INFO L134 CoverageAnalysis]: Checked inductivity of 30879 backedges. 0 proven. 30879 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 16:01:04,099 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 16:01:04,100 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1939321633] [2023-11-23 16:01:04,100 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1939321633] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 16:01:04,100 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2000618327] [2023-11-23 16:01:04,100 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2023-11-23 16:01:04,100 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 16:01:04,100 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 16:01:04,102 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 16:01:04,102 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2023-11-23 16:01:04,376 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 95 check-sat command(s) [2023-11-23 16:01:04,377 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-23 16:01:04,382 INFO L262 TraceCheckSpWp]: Trace formula consists of 1233 conjuncts, 96 conjunts are in the unsatisfiable core [2023-11-23 16:01:04,387 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 16:01:05,011 INFO L134 CoverageAnalysis]: Checked inductivity of 30879 backedges. 0 proven. 30879 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 16:01:05,011 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 16:01:13,949 INFO L134 CoverageAnalysis]: Checked inductivity of 30879 backedges. 0 proven. 30879 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 16:01:13,949 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2000618327] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-23 16:01:13,949 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-23 16:01:13,950 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [95, 95, 95] total 190 [2023-11-23 16:01:13,950 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [178094285] [2023-11-23 16:01:13,950 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-23 16:01:13,951 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 192 states [2023-11-23 16:01:13,952 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 16:01:13,957 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 192 interpolants. [2023-11-23 16:01:13,963 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18336, Invalid=18336, Unknown=0, NotChecked=0, Total=36672 [2023-11-23 16:01:13,964 INFO L87 Difference]: Start difference. First operand 665 states and 665 transitions. Second operand has 192 states, 191 states have (on average 6.9319371727748695) internal successors, (1324), 191 states have internal predecessors, (1324), 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) [2023-11-23 16:01:15,804 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 16:01:15,805 INFO L93 Difference]: Finished difference Result 1432 states and 1527 transitions. [2023-11-23 16:01:15,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 192 states. [2023-11-23 16:01:15,806 INFO L78 Accepts]: Start accepts. Automaton has has 192 states, 191 states have (on average 6.9319371727748695) internal successors, (1324), 191 states have internal predecessors, (1324), 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 662 [2023-11-23 16:01:15,807 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 16:01:15,811 INFO L225 Difference]: With dead ends: 1432 [2023-11-23 16:01:15,811 INFO L226 Difference]: Without dead ends: 1431 [2023-11-23 16:01:15,814 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1417 GetRequests, 1227 SyntacticMatches, 0 SemanticMatches, 190 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 11.1s TimeCoverageRelationStatistics Valid=18336, Invalid=18336, Unknown=0, NotChecked=0, Total=36672 [2023-11-23 16:01:15,815 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 403 mSDsluCounter, 1052 mSDsCounter, 0 mSdLazyCounter, 389 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 403 SdHoareTripleChecker+Valid, 1059 SdHoareTripleChecker+Invalid, 390 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 389 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-23 16:01:15,815 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [403 Valid, 1059 Invalid, 390 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 389 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-23 16:01:15,816 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1431 states. [2023-11-23 16:01:15,842 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1431 to 1336. [2023-11-23 16:01:15,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1336 states, 1334 states have (on average 1.0727136431784108) internal successors, (1431), 1335 states have internal predecessors, (1431), 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) [2023-11-23 16:01:15,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1336 states to 1336 states and 1431 transitions. [2023-11-23 16:01:15,846 INFO L78 Accepts]: Start accepts. Automaton has 1336 states and 1431 transitions. Word has length 662 [2023-11-23 16:01:15,847 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 16:01:15,847 INFO L495 AbstractCegarLoop]: Abstraction has 1336 states and 1431 transitions. [2023-11-23 16:01:15,848 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 192 states, 191 states have (on average 6.9319371727748695) internal successors, (1324), 191 states have internal predecessors, (1324), 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) [2023-11-23 16:01:15,848 INFO L276 IsEmpty]: Start isEmpty. Operand 1336 states and 1431 transitions. [2023-11-23 16:01:15,858 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 664 [2023-11-23 16:01:15,858 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 16:01:15,859 INFO L195 NwaCegarLoop]: trace histogram [95, 95, 95, 94, 94, 94, 94, 1, 1] [2023-11-23 16:01:15,888 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2023-11-23 16:01:16,075 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2023-11-23 16:01:16,076 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-23 16:01:16,076 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 16:01:16,076 INFO L85 PathProgramCache]: Analyzing trace with hash -123558686, now seen corresponding path program 6 times [2023-11-23 16:01:16,076 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 16:01:16,077 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1985452540] [2023-11-23 16:01:16,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 16:01:16,077 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 16:01:16,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 16:01:21,609 INFO L134 CoverageAnalysis]: Checked inductivity of 30973 backedges. 0 proven. 30973 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 16:01:21,609 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 16:01:21,610 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1985452540] [2023-11-23 16:01:21,610 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1985452540] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 16:01:21,610 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1359277601] [2023-11-23 16:01:21,610 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2023-11-23 16:01:21,610 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 16:01:21,610 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 16:01:21,611 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 16:01:21,612 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2023-11-23 16:01:21,911 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 95 check-sat command(s) [2023-11-23 16:01:21,911 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-23 16:01:21,917 INFO L262 TraceCheckSpWp]: Trace formula consists of 1236 conjuncts, 96 conjunts are in the unsatisfiable core [2023-11-23 16:01:21,922 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 16:01:22,493 INFO L134 CoverageAnalysis]: Checked inductivity of 30973 backedges. 0 proven. 30973 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 16:01:22,493 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 16:01:31,901 INFO L134 CoverageAnalysis]: Checked inductivity of 30973 backedges. 0 proven. 30973 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 16:01:31,901 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1359277601] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-23 16:01:31,901 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-23 16:01:31,901 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [95, 95, 95] total 190 [2023-11-23 16:01:31,902 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [194834446] [2023-11-23 16:01:31,902 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-23 16:01:31,903 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 192 states [2023-11-23 16:01:31,903 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 16:01:31,907 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 192 interpolants. [2023-11-23 16:01:31,909 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18336, Invalid=18336, Unknown=0, NotChecked=0, Total=36672 [2023-11-23 16:01:31,910 INFO L87 Difference]: Start difference. First operand 1336 states and 1431 transitions. Second operand has 192 states, 191 states have (on average 6.942408376963351) internal successors, (1326), 191 states have internal predecessors, (1326), 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) [2023-11-23 16:01:33,370 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 16:01:33,370 INFO L93 Difference]: Finished difference Result 1338 states and 1433 transitions. [2023-11-23 16:01:33,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 192 states. [2023-11-23 16:01:33,376 INFO L78 Accepts]: Start accepts. Automaton has has 192 states, 191 states have (on average 6.942408376963351) internal successors, (1326), 191 states have internal predecessors, (1326), 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 663 [2023-11-23 16:01:33,377 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 16:01:33,379 INFO L225 Difference]: With dead ends: 1338 [2023-11-23 16:01:33,379 INFO L226 Difference]: Without dead ends: 1337 [2023-11-23 16:01:33,381 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1419 GetRequests, 1229 SyntacticMatches, 0 SemanticMatches, 190 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 11.7s TimeCoverageRelationStatistics Valid=18336, Invalid=18336, Unknown=0, NotChecked=0, Total=36672 [2023-11-23 16:01:33,381 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 4 mSDsluCounter, 954 mSDsCounter, 0 mSdLazyCounter, 386 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 961 SdHoareTripleChecker+Invalid, 388 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 386 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-23 16:01:33,382 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 961 Invalid, 388 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 386 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-23 16:01:33,382 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1337 states. [2023-11-23 16:01:33,399 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1337 to 1337. [2023-11-23 16:01:33,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1337 states, 1335 states have (on average 1.0014981273408239) internal successors, (1337), 1336 states have internal predecessors, (1337), 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) [2023-11-23 16:01:33,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1337 states to 1337 states and 1337 transitions. [2023-11-23 16:01:33,402 INFO L78 Accepts]: Start accepts. Automaton has 1337 states and 1337 transitions. Word has length 663 [2023-11-23 16:01:33,403 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 16:01:33,403 INFO L495 AbstractCegarLoop]: Abstraction has 1337 states and 1337 transitions. [2023-11-23 16:01:33,403 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 192 states, 191 states have (on average 6.942408376963351) internal successors, (1326), 191 states have internal predecessors, (1326), 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) [2023-11-23 16:01:33,404 INFO L276 IsEmpty]: Start isEmpty. Operand 1337 states and 1337 transitions. [2023-11-23 16:01:33,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1335 [2023-11-23 16:01:33,414 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 16:01:33,415 INFO L195 NwaCegarLoop]: trace histogram [191, 191, 190, 190, 190, 190, 190, 1, 1] [2023-11-23 16:01:33,428 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2023-11-23 16:01:33,627 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2023-11-23 16:01:33,628 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-23 16:01:33,628 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 16:01:33,628 INFO L85 PathProgramCache]: Analyzing trace with hash -1961846035, now seen corresponding path program 7 times [2023-11-23 16:01:33,628 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 16:01:33,628 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1712140646] [2023-11-23 16:01:33,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 16:01:33,628 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 16:01:33,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 16:02:00,575 INFO L134 CoverageAnalysis]: Checked inductivity of 126255 backedges. 0 proven. 126255 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 16:02:00,575 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 16:02:00,575 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1712140646] [2023-11-23 16:02:00,575 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1712140646] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 16:02:00,575 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [191552351] [2023-11-23 16:02:00,575 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2023-11-23 16:02:00,576 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 16:02:00,576 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 16:02:00,577 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 16:02:00,577 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2023-11-23 16:02:00,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 16:02:00,924 INFO L262 TraceCheckSpWp]: Trace formula consists of 2481 conjuncts, 192 conjunts are in the unsatisfiable core [2023-11-23 16:02:00,939 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 16:02:01,995 INFO L134 CoverageAnalysis]: Checked inductivity of 126255 backedges. 0 proven. 126255 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 16:02:01,996 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 16:02:35,548 INFO L134 CoverageAnalysis]: Checked inductivity of 126255 backedges. 0 proven. 126255 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 16:02:35,548 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [191552351] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-23 16:02:35,548 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-23 16:02:35,549 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [191, 191, 191] total 382 [2023-11-23 16:02:35,549 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1924440143] [2023-11-23 16:02:35,549 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-23 16:02:35,551 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 384 states [2023-11-23 16:02:35,551 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 16:02:35,560 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 384 interpolants. [2023-11-23 16:02:35,566 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=73536, Invalid=73536, Unknown=0, NotChecked=0, Total=147072 [2023-11-23 16:02:35,567 INFO L87 Difference]: Start difference. First operand 1337 states and 1337 transitions. Second operand has 384 states, 383 states have (on average 6.966057441253263) internal successors, (2668), 383 states have internal predecessors, (2668), 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) [2023-11-23 16:02:46,474 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 16:02:46,475 INFO L93 Difference]: Finished difference Result 2872 states and 3063 transitions. [2023-11-23 16:02:46,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 384 states. [2023-11-23 16:02:46,476 INFO L78 Accepts]: Start accepts. Automaton has has 384 states, 383 states have (on average 6.966057441253263) internal successors, (2668), 383 states have internal predecessors, (2668), 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 1334 [2023-11-23 16:02:46,477 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 16:02:46,482 INFO L225 Difference]: With dead ends: 2872 [2023-11-23 16:02:46,482 INFO L226 Difference]: Without dead ends: 2871 [2023-11-23 16:02:46,487 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2857 GetRequests, 2475 SyntacticMatches, 0 SemanticMatches, 382 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 43.6s TimeCoverageRelationStatistics Valid=73536, Invalid=73536, Unknown=0, NotChecked=0, Total=147072 [2023-11-23 16:02:46,488 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 852 mSDsluCounter, 2110 mSDsCounter, 0 mSdLazyCounter, 772 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 852 SdHoareTripleChecker+Valid, 2117 SdHoareTripleChecker+Invalid, 773 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 772 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-23 16:02:46,488 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [852 Valid, 2117 Invalid, 773 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 772 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-23 16:02:46,490 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2871 states. [2023-11-23 16:02:46,519 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2871 to 2680. [2023-11-23 16:02:46,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2680 states, 2678 states have (on average 1.072068707991038) internal successors, (2871), 2679 states have internal predecessors, (2871), 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) [2023-11-23 16:02:46,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2680 states to 2680 states and 2871 transitions. [2023-11-23 16:02:46,524 INFO L78 Accepts]: Start accepts. Automaton has 2680 states and 2871 transitions. Word has length 1334 [2023-11-23 16:02:46,525 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 16:02:46,525 INFO L495 AbstractCegarLoop]: Abstraction has 2680 states and 2871 transitions. [2023-11-23 16:02:46,526 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 384 states, 383 states have (on average 6.966057441253263) internal successors, (2668), 383 states have internal predecessors, (2668), 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) [2023-11-23 16:02:46,526 INFO L276 IsEmpty]: Start isEmpty. Operand 2680 states and 2871 transitions. [2023-11-23 16:02:46,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1336 [2023-11-23 16:02:46,537 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 16:02:46,537 INFO L195 NwaCegarLoop]: trace histogram [191, 191, 191, 190, 190, 190, 190, 1, 1] [2023-11-23 16:02:46,560 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2023-11-23 16:02:46,750 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 16:02:46,750 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-23 16:02:46,751 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 16:02:46,751 INFO L85 PathProgramCache]: Analyzing trace with hash -687684894, now seen corresponding path program 7 times [2023-11-23 16:02:46,751 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 16:02:46,751 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [102233478] [2023-11-23 16:02:46,751 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 16:02:46,751 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 16:02:46,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 16:03:13,304 INFO L134 CoverageAnalysis]: Checked inductivity of 126445 backedges. 0 proven. 126445 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 16:03:13,304 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 16:03:13,304 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [102233478] [2023-11-23 16:03:13,304 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [102233478] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 16:03:13,304 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1721073259] [2023-11-23 16:03:13,304 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2023-11-23 16:03:13,304 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 16:03:13,305 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 16:03:13,306 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 16:03:13,307 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2023-11-23 16:03:13,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 16:03:13,638 INFO L262 TraceCheckSpWp]: Trace formula consists of 2484 conjuncts, 192 conjunts are in the unsatisfiable core [2023-11-23 16:03:13,655 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 16:03:14,665 INFO L134 CoverageAnalysis]: Checked inductivity of 126445 backedges. 0 proven. 126445 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 16:03:14,665 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 16:03:50,440 INFO L134 CoverageAnalysis]: Checked inductivity of 126445 backedges. 0 proven. 126445 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 16:03:50,441 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1721073259] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-23 16:03:50,441 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-23 16:03:50,441 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [191, 191, 191] total 382 [2023-11-23 16:03:50,441 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2110556235] [2023-11-23 16:03:50,441 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-23 16:03:50,443 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 384 states [2023-11-23 16:03:50,443 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 16:03:50,454 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 384 interpolants. [2023-11-23 16:03:50,462 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=73536, Invalid=73536, Unknown=0, NotChecked=0, Total=147072 [2023-11-23 16:03:50,463 INFO L87 Difference]: Start difference. First operand 2680 states and 2871 transitions. Second operand has 384 states, 383 states have (on average 6.971279373368146) internal successors, (2670), 383 states have internal predecessors, (2670), 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) [2023-11-23 16:04:00,060 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 16:04:00,060 INFO L93 Difference]: Finished difference Result 2682 states and 2873 transitions. [2023-11-23 16:04:00,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 384 states. [2023-11-23 16:04:00,062 INFO L78 Accepts]: Start accepts. Automaton has has 384 states, 383 states have (on average 6.971279373368146) internal successors, (2670), 383 states have internal predecessors, (2670), 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 1335 [2023-11-23 16:04:00,063 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 16:04:00,067 INFO L225 Difference]: With dead ends: 2682 [2023-11-23 16:04:00,067 INFO L226 Difference]: Without dead ends: 2681 [2023-11-23 16:04:00,072 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2859 GetRequests, 2477 SyntacticMatches, 0 SemanticMatches, 382 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 46.0s TimeCoverageRelationStatistics Valid=73536, Invalid=73536, Unknown=0, NotChecked=0, Total=147072 [2023-11-23 16:04:00,073 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 4 mSDsluCounter, 1914 mSDsCounter, 0 mSdLazyCounter, 770 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 1921 SdHoareTripleChecker+Invalid, 772 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 770 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-23 16:04:00,073 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 1921 Invalid, 772 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 770 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-23 16:04:00,075 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2681 states. [2023-11-23 16:04:00,108 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2681 to 2681. [2023-11-23 16:04:00,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2681 states, 2679 states have (on average 1.0007465472191117) internal successors, (2681), 2680 states have internal predecessors, (2681), 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) [2023-11-23 16:04:00,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2681 states to 2681 states and 2681 transitions. [2023-11-23 16:04:00,113 INFO L78 Accepts]: Start accepts. Automaton has 2681 states and 2681 transitions. Word has length 1335 [2023-11-23 16:04:00,114 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 16:04:00,114 INFO L495 AbstractCegarLoop]: Abstraction has 2681 states and 2681 transitions. [2023-11-23 16:04:00,115 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 384 states, 383 states have (on average 6.971279373368146) internal successors, (2670), 383 states have internal predecessors, (2670), 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) [2023-11-23 16:04:00,115 INFO L276 IsEmpty]: Start isEmpty. Operand 2681 states and 2681 transitions. [2023-11-23 16:04:00,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2679 [2023-11-23 16:04:00,154 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 16:04:00,155 INFO L195 NwaCegarLoop]: trace histogram [383, 383, 382, 382, 382, 382, 382, 1, 1] [2023-11-23 16:04:00,174 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2023-11-23 16:04:00,366 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 16:04:00,366 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-23 16:04:00,367 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 16:04:00,367 INFO L85 PathProgramCache]: Analyzing trace with hash -564076819, now seen corresponding path program 8 times [2023-11-23 16:04:00,367 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 16:04:00,367 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [252404305] [2023-11-23 16:04:00,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 16:04:00,368 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 16:04:01,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat Killed by 15