/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Overflow-32bit-Automizer_Default.epf -i ../sv-benchmarks/c/array-examples/standard_partition_original_ground.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-05d3305-m [2022-10-15 20:13:11,304 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-15 20:13:11,309 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-15 20:13:11,376 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-10-15 20:13:11,505 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-15 20:13:11,507 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-15 20:13:11,509 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-15 20:13:11,510 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Overflow-32bit-Automizer_Default.epf [2022-10-15 20:13:11,573 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-15 20:13:11,573 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-15 20:13:11,574 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-15 20:13:11,574 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-15 20:13:11,577 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-15 20:13:11,577 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-15 20:13:11,580 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-15 20:13:11,581 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-15 20:13:11,581 INFO L138 SettingsManager]: * Use SBE=true [2022-10-15 20:13:11,582 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-15 20:13:11,583 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-15 20:13:11,584 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-15 20:13:11,584 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-15 20:13:11,585 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-15 20:13:11,585 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-15 20:13:11,585 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-15 20:13:11,586 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-15 20:13:11,586 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-15 20:13:11,586 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-10-15 20:13:11,587 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-15 20:13:11,587 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-15 20:13:11,587 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-15 20:13:11,588 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-15 20:13:11,588 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-15 20:13:11,588 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-15 20:13:11,589 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-15 20:13:11,589 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-15 20:13:11,589 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-15 20:13:11,590 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-15 20:13:11,590 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-15 20:13:11,590 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-15 20:13:11,591 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-15 20:13:11,591 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-15 20:13:11,591 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-10-15 20:13:12,034 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-15 20:13:12,070 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-15 20:13:12,075 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-15 20:13:12,076 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-15 20:13:12,077 INFO L275 PluginConnector]: CDTParser initialized [2022-10-15 20:13:12,079 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/array-examples/standard_partition_original_ground.i [2022-10-15 20:13:12,167 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d80f332c1/f119309139d34a7ca2fc1b5e53700dda/FLAG2032d36da [2022-10-15 20:13:12,843 INFO L306 CDTParser]: Found 1 translation units. [2022-10-15 20:13:12,844 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-examples/standard_partition_original_ground.i [2022-10-15 20:13:12,854 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d80f332c1/f119309139d34a7ca2fc1b5e53700dda/FLAG2032d36da [2022-10-15 20:13:13,228 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d80f332c1/f119309139d34a7ca2fc1b5e53700dda [2022-10-15 20:13:13,231 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-15 20:13:13,238 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-10-15 20:13:13,243 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-15 20:13:13,243 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-15 20:13:13,249 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-15 20:13:13,251 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 08:13:13" (1/1) ... [2022-10-15 20:13:13,253 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6f0d1e82 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:13:13, skipping insertion in model container [2022-10-15 20:13:13,253 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 08:13:13" (1/1) ... [2022-10-15 20:13:13,265 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-15 20:13:13,288 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-15 20:13:13,551 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-examples/standard_partition_original_ground.i[827,840] [2022-10-15 20:13:13,577 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-15 20:13:13,588 INFO L203 MainTranslator]: Completed pre-run [2022-10-15 20:13:13,603 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-examples/standard_partition_original_ground.i[827,840] [2022-10-15 20:13:13,614 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-15 20:13:13,632 INFO L208 MainTranslator]: Completed translation [2022-10-15 20:13:13,632 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:13:13 WrapperNode [2022-10-15 20:13:13,633 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-15 20:13:13,634 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-15 20:13:13,634 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-15 20:13:13,634 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-15 20:13:13,644 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:13:13" (1/1) ... [2022-10-15 20:13:13,653 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:13:13" (1/1) ... [2022-10-15 20:13:13,681 INFO L138 Inliner]: procedures = 16, calls = 25, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 92 [2022-10-15 20:13:13,681 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-15 20:13:13,682 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-15 20:13:13,683 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-15 20:13:13,683 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-15 20:13:13,692 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:13:13" (1/1) ... [2022-10-15 20:13:13,693 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:13:13" (1/1) ... [2022-10-15 20:13:13,696 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:13:13" (1/1) ... [2022-10-15 20:13:13,696 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:13:13" (1/1) ... [2022-10-15 20:13:13,703 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:13:13" (1/1) ... [2022-10-15 20:13:13,709 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:13:13" (1/1) ... [2022-10-15 20:13:13,712 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:13:13" (1/1) ... [2022-10-15 20:13:13,714 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:13:13" (1/1) ... [2022-10-15 20:13:13,716 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-15 20:13:13,718 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-15 20:13:13,718 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-15 20:13:13,718 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-15 20:13:13,719 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:13:13" (1/1) ... [2022-10-15 20:13:13,727 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-15 20:13:13,740 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 20:13:13,759 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) [2022-10-15 20:13:13,783 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 [2022-10-15 20:13:13,827 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-15 20:13:13,828 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-15 20:13:13,828 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-10-15 20:13:13,828 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-10-15 20:13:13,828 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-15 20:13:13,828 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-15 20:13:13,828 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-10-15 20:13:13,829 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-10-15 20:13:13,829 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-10-15 20:13:13,829 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-10-15 20:13:13,907 INFO L235 CfgBuilder]: Building ICFG [2022-10-15 20:13:13,910 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-15 20:13:14,153 INFO L276 CfgBuilder]: Performing block encoding [2022-10-15 20:13:14,164 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-15 20:13:14,164 INFO L300 CfgBuilder]: Removed 4 assume(true) statements. [2022-10-15 20:13:14,167 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 08:13:14 BoogieIcfgContainer [2022-10-15 20:13:14,168 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-15 20:13:14,183 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-15 20:13:14,184 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-15 20:13:14,198 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-15 20:13:14,199 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 08:13:13" (1/3) ... [2022-10-15 20:13:14,200 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ea29dc2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 08:13:14, skipping insertion in model container [2022-10-15 20:13:14,200 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:13:13" (2/3) ... [2022-10-15 20:13:14,200 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ea29dc2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 08:13:14, skipping insertion in model container [2022-10-15 20:13:14,201 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 08:13:14" (3/3) ... [2022-10-15 20:13:14,202 INFO L112 eAbstractionObserver]: Analyzing ICFG standard_partition_original_ground.i [2022-10-15 20:13:14,288 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-15 20:13:14,289 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 12 error locations. [2022-10-15 20:13:14,411 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-15 20:13:14,421 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=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, 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;@7825c03b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-15 20:13:14,422 INFO L358 AbstractCegarLoop]: Starting to check reachability of 12 error locations. [2022-10-15 20:13:14,427 INFO L276 IsEmpty]: Start isEmpty. Operand has 49 states, 33 states have (on average 1.6666666666666667) internal successors, (55), 45 states have internal predecessors, (55), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-15 20:13:14,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-10-15 20:13:14,434 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 20:13:14,435 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-10-15 20:13:14,436 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-15 20:13:14,442 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 20:13:14,443 INFO L85 PathProgramCache]: Analyzing trace with hash 28698728, now seen corresponding path program 1 times [2022-10-15 20:13:14,454 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 20:13:14,455 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1510385472] [2022-10-15 20:13:14,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 20:13:14,455 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 20:13:14,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 20:13:14,870 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 20:13:14,871 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 20:13:14,872 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1510385472] [2022-10-15 20:13:14,873 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1510385472] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 20:13:14,873 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 20:13:14,873 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 20:13:14,875 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [675527759] [2022-10-15 20:13:14,880 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 20:13:14,886 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-15 20:13:14,887 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 20:13:14,926 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-15 20:13:14,927 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-15 20:13:14,931 INFO L87 Difference]: Start difference. First operand has 49 states, 33 states have (on average 1.6666666666666667) internal successors, (55), 45 states have internal predecessors, (55), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 20:13:15,021 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 20:13:15,022 INFO L93 Difference]: Finished difference Result 96 states and 118 transitions. [2022-10-15 20:13:15,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-15 20:13:15,025 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2022-10-15 20:13:15,026 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 20:13:15,037 INFO L225 Difference]: With dead ends: 96 [2022-10-15 20:13:15,038 INFO L226 Difference]: Without dead ends: 48 [2022-10-15 20:13:15,043 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-15 20:13:15,053 INFO L413 NwaCegarLoop]: 50 mSDtfsCounter, 3 mSDsluCounter, 96 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 146 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 20:13:15,056 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 146 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 20:13:15,079 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2022-10-15 20:13:15,116 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 48. [2022-10-15 20:13:15,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48 states, 33 states have (on average 1.4848484848484849) internal successors, (49), 44 states have internal predecessors, (49), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-15 20:13:15,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 53 transitions. [2022-10-15 20:13:15,125 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 53 transitions. Word has length 5 [2022-10-15 20:13:15,125 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 20:13:15,125 INFO L495 AbstractCegarLoop]: Abstraction has 48 states and 53 transitions. [2022-10-15 20:13:15,127 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 20:13:15,127 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 53 transitions. [2022-10-15 20:13:15,129 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-10-15 20:13:15,130 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 20:13:15,130 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1] [2022-10-15 20:13:15,131 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-15 20:13:15,131 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-15 20:13:15,136 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 20:13:15,137 INFO L85 PathProgramCache]: Analyzing trace with hash -363792156, now seen corresponding path program 1 times [2022-10-15 20:13:15,138 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 20:13:15,138 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1597159913] [2022-10-15 20:13:15,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 20:13:15,139 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 20:13:15,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 20:13:15,267 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-15 20:13:15,268 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 20:13:15,268 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1597159913] [2022-10-15 20:13:15,270 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1597159913] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 20:13:15,271 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 20:13:15,271 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 20:13:15,271 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1069387473] [2022-10-15 20:13:15,273 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 20:13:15,275 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-15 20:13:15,275 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 20:13:15,276 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-15 20:13:15,276 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-15 20:13:15,277 INFO L87 Difference]: Start difference. First operand 48 states and 53 transitions. Second operand has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 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) [2022-10-15 20:13:15,354 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 20:13:15,354 INFO L93 Difference]: Finished difference Result 48 states and 53 transitions. [2022-10-15 20:13:15,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-15 20:13:15,356 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 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 9 [2022-10-15 20:13:15,357 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 20:13:15,358 INFO L225 Difference]: With dead ends: 48 [2022-10-15 20:13:15,358 INFO L226 Difference]: Without dead ends: 47 [2022-10-15 20:13:15,363 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-15 20:13:15,365 INFO L413 NwaCegarLoop]: 43 mSDtfsCounter, 5 mSDsluCounter, 83 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 126 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 20:13:15,368 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 126 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 20:13:15,371 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2022-10-15 20:13:15,384 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 47. [2022-10-15 20:13:15,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47 states, 33 states have (on average 1.4545454545454546) internal successors, (48), 43 states have internal predecessors, (48), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-15 20:13:15,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 52 transitions. [2022-10-15 20:13:15,388 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 52 transitions. Word has length 9 [2022-10-15 20:13:15,389 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 20:13:15,390 INFO L495 AbstractCegarLoop]: Abstraction has 47 states and 52 transitions. [2022-10-15 20:13:15,391 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 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) [2022-10-15 20:13:15,391 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 52 transitions. [2022-10-15 20:13:15,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-10-15 20:13:15,392 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 20:13:15,393 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 20:13:15,395 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-15 20:13:15,397 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-15 20:13:15,402 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 20:13:15,406 INFO L85 PathProgramCache]: Analyzing trace with hash 1607300635, now seen corresponding path program 1 times [2022-10-15 20:13:15,406 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 20:13:15,407 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1915857951] [2022-10-15 20:13:15,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 20:13:15,407 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 20:13:15,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 20:13:15,564 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 20:13:15,564 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 20:13:15,565 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1915857951] [2022-10-15 20:13:15,565 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1915857951] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 20:13:15,565 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [625834699] [2022-10-15 20:13:15,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 20:13:15,566 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 20:13:15,566 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 20:13:15,571 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) [2022-10-15 20:13:15,582 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-10-15 20:13:15,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 20:13:15,692 INFO L263 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 2 conjunts are in the unsatisfiable core [2022-10-15 20:13:15,704 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 20:13:15,760 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-15 20:13:15,761 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-15 20:13:15,761 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [625834699] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 20:13:15,761 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-15 20:13:15,762 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2022-10-15 20:13:15,763 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [239209974] [2022-10-15 20:13:15,763 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 20:13:15,763 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 20:13:15,764 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 20:13:15,764 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 20:13:15,768 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-10-15 20:13:15,768 INFO L87 Difference]: Start difference. First operand 47 states and 52 transitions. Second operand has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 20:13:15,807 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 20:13:15,807 INFO L93 Difference]: Finished difference Result 78 states and 89 transitions. [2022-10-15 20:13:15,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 20:13:15,808 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2022-10-15 20:13:15,809 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 20:13:15,810 INFO L225 Difference]: With dead ends: 78 [2022-10-15 20:13:15,810 INFO L226 Difference]: Without dead ends: 77 [2022-10-15 20:13:15,811 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-10-15 20:13:15,812 INFO L413 NwaCegarLoop]: 49 mSDtfsCounter, 30 mSDsluCounter, 35 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 84 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 20:13:15,813 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 84 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 20:13:15,814 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2022-10-15 20:13:15,823 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 54. [2022-10-15 20:13:15,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54 states, 40 states have (on average 1.525) internal successors, (61), 50 states have internal predecessors, (61), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-15 20:13:15,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 65 transitions. [2022-10-15 20:13:15,825 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 65 transitions. Word has length 10 [2022-10-15 20:13:15,826 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 20:13:15,826 INFO L495 AbstractCegarLoop]: Abstraction has 54 states and 65 transitions. [2022-10-15 20:13:15,826 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 20:13:15,827 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 65 transitions. [2022-10-15 20:13:15,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-10-15 20:13:15,827 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 20:13:15,828 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 20:13:15,857 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-10-15 20:13:16,041 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 20:13:16,042 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-15 20:13:16,044 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 20:13:16,044 INFO L85 PathProgramCache]: Analyzing trace with hash 1607300443, now seen corresponding path program 1 times [2022-10-15 20:13:16,045 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 20:13:16,045 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2059344256] [2022-10-15 20:13:16,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 20:13:16,046 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 20:13:16,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 20:13:16,209 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 20:13:16,210 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 20:13:16,210 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2059344256] [2022-10-15 20:13:16,211 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2059344256] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 20:13:16,211 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1500020676] [2022-10-15 20:13:16,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 20:13:16,211 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 20:13:16,212 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 20:13:16,213 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) [2022-10-15 20:13:16,233 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-10-15 20:13:16,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 20:13:16,284 INFO L263 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 2 conjunts are in the unsatisfiable core [2022-10-15 20:13:16,286 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 20:13:16,310 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-15 20:13:16,310 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-15 20:13:16,311 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1500020676] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 20:13:16,311 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-15 20:13:16,311 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2022-10-15 20:13:16,312 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1251595749] [2022-10-15 20:13:16,312 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 20:13:16,312 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 20:13:16,313 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 20:13:16,313 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 20:13:16,314 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-10-15 20:13:16,314 INFO L87 Difference]: Start difference. First operand 54 states and 65 transitions. Second operand has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 20:13:16,344 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 20:13:16,344 INFO L93 Difference]: Finished difference Result 90 states and 111 transitions. [2022-10-15 20:13:16,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 20:13:16,345 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2022-10-15 20:13:16,346 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 20:13:16,348 INFO L225 Difference]: With dead ends: 90 [2022-10-15 20:13:16,348 INFO L226 Difference]: Without dead ends: 89 [2022-10-15 20:13:16,349 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-10-15 20:13:16,350 INFO L413 NwaCegarLoop]: 50 mSDtfsCounter, 30 mSDsluCounter, 34 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 84 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 [2022-10-15 20:13:16,351 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 84 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 20:13:16,352 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2022-10-15 20:13:16,362 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 65. [2022-10-15 20:13:16,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65 states, 51 states have (on average 1.5686274509803921) internal successors, (80), 61 states have internal predecessors, (80), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-15 20:13:16,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 84 transitions. [2022-10-15 20:13:16,364 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 84 transitions. Word has length 10 [2022-10-15 20:13:16,365 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 20:13:16,365 INFO L495 AbstractCegarLoop]: Abstraction has 65 states and 84 transitions. [2022-10-15 20:13:16,365 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 20:13:16,366 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 84 transitions. [2022-10-15 20:13:16,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-10-15 20:13:16,366 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 20:13:16,367 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1] [2022-10-15 20:13:16,405 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-10-15 20:13:16,580 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,SelfDestructingSolverStorable3 [2022-10-15 20:13:16,581 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-15 20:13:16,582 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 20:13:16,583 INFO L85 PathProgramCache]: Analyzing trace with hash 1607345098, now seen corresponding path program 1 times [2022-10-15 20:13:16,583 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 20:13:16,584 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [719980116] [2022-10-15 20:13:16,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 20:13:16,585 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 20:13:16,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 20:13:16,759 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 20:13:16,759 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 20:13:16,759 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [719980116] [2022-10-15 20:13:16,760 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [719980116] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 20:13:16,760 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1779835404] [2022-10-15 20:13:16,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 20:13:16,766 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 20:13:16,766 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 20:13:16,776 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) [2022-10-15 20:13:16,798 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-10-15 20:13:16,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 20:13:16,855 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-15 20:13:16,858 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 20:13:16,973 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 20:13:16,974 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-15 20:13:16,974 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1779835404] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 20:13:16,975 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-15 20:13:16,975 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2022-10-15 20:13:16,976 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [576762953] [2022-10-15 20:13:16,976 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 20:13:16,977 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-15 20:13:16,977 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 20:13:16,978 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-15 20:13:16,978 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-10-15 20:13:16,980 INFO L87 Difference]: Start difference. First operand 65 states and 84 transitions. Second operand has 6 states, 5 states have (on average 2.0) internal successors, (10), 6 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 20:13:17,057 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 20:13:17,058 INFO L93 Difference]: Finished difference Result 65 states and 84 transitions. [2022-10-15 20:13:17,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-15 20:13:17,059 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.0) internal successors, (10), 6 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2022-10-15 20:13:17,059 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 20:13:17,062 INFO L225 Difference]: With dead ends: 65 [2022-10-15 20:13:17,063 INFO L226 Difference]: Without dead ends: 64 [2022-10-15 20:13:17,064 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-10-15 20:13:17,068 INFO L413 NwaCegarLoop]: 42 mSDtfsCounter, 72 mSDsluCounter, 47 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 89 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 20:13:17,068 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [74 Valid, 89 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 20:13:17,069 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2022-10-15 20:13:17,087 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 61. [2022-10-15 20:13:17,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61 states, 48 states have (on average 1.5833333333333333) internal successors, (76), 57 states have internal predecessors, (76), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-15 20:13:17,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 80 transitions. [2022-10-15 20:13:17,090 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 80 transitions. Word has length 10 [2022-10-15 20:13:17,090 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 20:13:17,090 INFO L495 AbstractCegarLoop]: Abstraction has 61 states and 80 transitions. [2022-10-15 20:13:17,091 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.0) internal successors, (10), 6 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 20:13:17,091 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 80 transitions. [2022-10-15 20:13:17,091 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-10-15 20:13:17,094 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 20:13:17,094 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 20:13:17,136 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-10-15 20:13:17,308 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 20:13:17,309 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-15 20:13:17,310 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 20:13:17,310 INFO L85 PathProgramCache]: Analyzing trace with hash -1713287797, now seen corresponding path program 1 times [2022-10-15 20:13:17,311 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 20:13:17,311 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [794469532] [2022-10-15 20:13:17,311 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 20:13:17,312 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 20:13:17,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 20:13:17,376 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 20:13:17,377 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 20:13:17,377 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [794469532] [2022-10-15 20:13:17,378 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [794469532] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 20:13:17,378 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [838745465] [2022-10-15 20:13:17,378 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 20:13:17,378 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 20:13:17,379 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 20:13:17,380 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) [2022-10-15 20:13:17,390 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-10-15 20:13:17,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 20:13:17,468 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 2 conjunts are in the unsatisfiable core [2022-10-15 20:13:17,470 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 20:13:17,513 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-15 20:13:17,513 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-15 20:13:17,514 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [838745465] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 20:13:17,514 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-15 20:13:17,514 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2022-10-15 20:13:17,514 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [886323159] [2022-10-15 20:13:17,514 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 20:13:17,515 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 20:13:17,515 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 20:13:17,516 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 20:13:17,516 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-10-15 20:13:17,516 INFO L87 Difference]: Start difference. First operand 61 states and 80 transitions. Second operand has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 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) [2022-10-15 20:13:17,536 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 20:13:17,536 INFO L93 Difference]: Finished difference Result 61 states and 80 transitions. [2022-10-15 20:13:17,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 20:13:17,537 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 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 [2022-10-15 20:13:17,537 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 20:13:17,538 INFO L225 Difference]: With dead ends: 61 [2022-10-15 20:13:17,539 INFO L226 Difference]: Without dead ends: 60 [2022-10-15 20:13:17,539 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-10-15 20:13:17,541 INFO L413 NwaCegarLoop]: 41 mSDtfsCounter, 28 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 47 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 20:13:17,541 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 47 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 20:13:17,542 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2022-10-15 20:13:17,549 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 60. [2022-10-15 20:13:17,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60 states, 48 states have (on average 1.5416666666666667) internal successors, (74), 56 states have internal predecessors, (74), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-15 20:13:17,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 78 transitions. [2022-10-15 20:13:17,551 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 78 transitions. Word has length 11 [2022-10-15 20:13:17,551 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 20:13:17,551 INFO L495 AbstractCegarLoop]: Abstraction has 60 states and 78 transitions. [2022-10-15 20:13:17,551 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 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) [2022-10-15 20:13:17,552 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 78 transitions. [2022-10-15 20:13:17,552 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-10-15 20:13:17,552 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 20:13:17,552 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 20:13:17,596 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-10-15 20:13:17,767 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 20:13:17,768 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-15 20:13:17,768 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 20:13:17,769 INFO L85 PathProgramCache]: Analyzing trace with hash -1713293755, now seen corresponding path program 1 times [2022-10-15 20:13:17,769 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 20:13:17,770 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1577237548] [2022-10-15 20:13:17,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 20:13:17,770 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 20:13:17,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 20:13:17,846 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 20:13:17,847 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 20:13:17,847 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1577237548] [2022-10-15 20:13:17,847 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1577237548] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 20:13:17,848 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1519921845] [2022-10-15 20:13:17,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 20:13:17,848 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 20:13:17,848 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 20:13:17,855 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) [2022-10-15 20:13:17,885 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-10-15 20:13:17,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 20:13:17,935 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 2 conjunts are in the unsatisfiable core [2022-10-15 20:13:17,936 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 20:13:17,970 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-15 20:13:17,971 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-15 20:13:17,971 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1519921845] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 20:13:17,971 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-15 20:13:17,971 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2022-10-15 20:13:17,971 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1364780469] [2022-10-15 20:13:17,972 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 20:13:17,973 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 20:13:17,973 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 20:13:17,974 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 20:13:17,974 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-10-15 20:13:17,974 INFO L87 Difference]: Start difference. First operand 60 states and 78 transitions. Second operand has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 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) [2022-10-15 20:13:17,992 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 20:13:17,992 INFO L93 Difference]: Finished difference Result 60 states and 78 transitions. [2022-10-15 20:13:17,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 20:13:17,992 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 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 [2022-10-15 20:13:17,993 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 20:13:17,993 INFO L225 Difference]: With dead ends: 60 [2022-10-15 20:13:17,993 INFO L226 Difference]: Without dead ends: 59 [2022-10-15 20:13:17,999 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-10-15 20:13:18,003 INFO L413 NwaCegarLoop]: 39 mSDtfsCounter, 27 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 45 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 [2022-10-15 20:13:18,003 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 45 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 20:13:18,006 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2022-10-15 20:13:18,018 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 59. [2022-10-15 20:13:18,019 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59 states, 48 states have (on average 1.5) internal successors, (72), 55 states have internal predecessors, (72), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-15 20:13:18,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 76 transitions. [2022-10-15 20:13:18,021 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 76 transitions. Word has length 11 [2022-10-15 20:13:18,022 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 20:13:18,022 INFO L495 AbstractCegarLoop]: Abstraction has 59 states and 76 transitions. [2022-10-15 20:13:18,022 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 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) [2022-10-15 20:13:18,022 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 76 transitions. [2022-10-15 20:13:18,023 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-10-15 20:13:18,023 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 20:13:18,023 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 20:13:18,048 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-10-15 20:13:18,229 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 20:13:18,230 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-15 20:13:18,231 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 20:13:18,231 INFO L85 PathProgramCache]: Analyzing trace with hash -1572314082, now seen corresponding path program 1 times [2022-10-15 20:13:18,231 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 20:13:18,231 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1904667347] [2022-10-15 20:13:18,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 20:13:18,232 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 20:13:18,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 20:13:18,291 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 20:13:18,291 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 20:13:18,292 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1904667347] [2022-10-15 20:13:18,292 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1904667347] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 20:13:18,292 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [158648198] [2022-10-15 20:13:18,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 20:13:18,293 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 20:13:18,293 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 20:13:18,294 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) [2022-10-15 20:13:18,316 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-10-15 20:13:18,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 20:13:18,369 INFO L263 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 2 conjunts are in the unsatisfiable core [2022-10-15 20:13:18,370 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 20:13:18,396 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-15 20:13:18,396 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-15 20:13:18,396 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [158648198] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 20:13:18,396 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-15 20:13:18,396 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2022-10-15 20:13:18,397 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1597972239] [2022-10-15 20:13:18,397 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 20:13:18,397 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 20:13:18,397 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 20:13:18,398 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 20:13:18,398 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-10-15 20:13:18,398 INFO L87 Difference]: Start difference. First operand 59 states and 76 transitions. Second operand has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 20:13:18,422 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 20:13:18,422 INFO L93 Difference]: Finished difference Result 88 states and 110 transitions. [2022-10-15 20:13:18,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 20:13:18,423 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2022-10-15 20:13:18,423 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 20:13:18,423 INFO L225 Difference]: With dead ends: 88 [2022-10-15 20:13:18,424 INFO L226 Difference]: Without dead ends: 65 [2022-10-15 20:13:18,424 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-10-15 20:13:18,425 INFO L413 NwaCegarLoop]: 39 mSDtfsCounter, 5 mSDsluCounter, 31 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 70 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 20:13:18,425 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 70 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 20:13:18,426 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2022-10-15 20:13:18,432 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 63. [2022-10-15 20:13:18,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63 states, 52 states have (on average 1.4423076923076923) internal successors, (75), 59 states have internal predecessors, (75), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-15 20:13:18,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 79 transitions. [2022-10-15 20:13:18,433 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 79 transitions. Word has length 12 [2022-10-15 20:13:18,433 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 20:13:18,434 INFO L495 AbstractCegarLoop]: Abstraction has 63 states and 79 transitions. [2022-10-15 20:13:18,434 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 20:13:18,434 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 79 transitions. [2022-10-15 20:13:18,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-10-15 20:13:18,435 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 20:13:18,435 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 20:13:18,482 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-10-15 20:13:18,650 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 20:13:18,651 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-15 20:13:18,652 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 20:13:18,652 INFO L85 PathProgramCache]: Analyzing trace with hash -1497096211, now seen corresponding path program 1 times [2022-10-15 20:13:18,652 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 20:13:18,652 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [619776836] [2022-10-15 20:13:18,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 20:13:18,653 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 20:13:18,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 20:13:18,717 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 20:13:18,717 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 20:13:18,718 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [619776836] [2022-10-15 20:13:18,718 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [619776836] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 20:13:18,718 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1721657233] [2022-10-15 20:13:18,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 20:13:18,718 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 20:13:18,718 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 20:13:18,719 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) [2022-10-15 20:13:18,745 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-10-15 20:13:18,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 20:13:18,792 INFO L263 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 2 conjunts are in the unsatisfiable core [2022-10-15 20:13:18,793 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 20:13:18,821 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-15 20:13:18,821 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-15 20:13:18,821 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1721657233] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 20:13:18,821 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-15 20:13:18,822 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2022-10-15 20:13:18,822 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1942061817] [2022-10-15 20:13:18,822 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 20:13:18,822 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 20:13:18,823 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 20:13:18,823 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 20:13:18,823 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-10-15 20:13:18,824 INFO L87 Difference]: Start difference. First operand 63 states and 79 transitions. Second operand has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 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) [2022-10-15 20:13:18,837 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 20:13:18,838 INFO L93 Difference]: Finished difference Result 63 states and 79 transitions. [2022-10-15 20:13:18,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 20:13:18,838 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 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) Word has length 13 [2022-10-15 20:13:18,839 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 20:13:18,839 INFO L225 Difference]: With dead ends: 63 [2022-10-15 20:13:18,839 INFO L226 Difference]: Without dead ends: 62 [2022-10-15 20:13:18,840 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-10-15 20:13:18,841 INFO L413 NwaCegarLoop]: 37 mSDtfsCounter, 24 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 43 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 [2022-10-15 20:13:18,841 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 43 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 20:13:18,842 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2022-10-15 20:13:18,847 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 62. [2022-10-15 20:13:18,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62 states, 52 states have (on average 1.3846153846153846) internal successors, (72), 58 states have internal predecessors, (72), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-15 20:13:18,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 76 transitions. [2022-10-15 20:13:18,849 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 76 transitions. Word has length 13 [2022-10-15 20:13:18,849 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 20:13:18,849 INFO L495 AbstractCegarLoop]: Abstraction has 62 states and 76 transitions. [2022-10-15 20:13:18,849 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 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) [2022-10-15 20:13:18,850 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 76 transitions. [2022-10-15 20:13:18,850 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-10-15 20:13:18,850 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 20:13:18,850 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 20:13:18,894 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-10-15 20:13:19,064 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 20:13:19,064 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-15 20:13:19,065 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 20:13:19,065 INFO L85 PathProgramCache]: Analyzing trace with hash -1052763346, now seen corresponding path program 1 times [2022-10-15 20:13:19,065 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 20:13:19,065 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [73162600] [2022-10-15 20:13:19,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 20:13:19,066 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 20:13:19,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 20:13:19,146 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-10-15 20:13:19,146 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 20:13:19,146 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [73162600] [2022-10-15 20:13:19,147 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [73162600] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 20:13:19,147 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1695204567] [2022-10-15 20:13:19,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 20:13:19,147 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 20:13:19,148 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 20:13:19,149 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) [2022-10-15 20:13:19,172 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-10-15 20:13:19,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 20:13:19,226 INFO L263 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 4 conjunts are in the unsatisfiable core [2022-10-15 20:13:19,227 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 20:13:19,257 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-10-15 20:13:19,257 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-15 20:13:19,294 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-10-15 20:13:19,294 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1695204567] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-15 20:13:19,295 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-15 20:13:19,295 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2022-10-15 20:13:19,295 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1174030362] [2022-10-15 20:13:19,295 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-15 20:13:19,296 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-10-15 20:13:19,296 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 20:13:19,296 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-10-15 20:13:19,297 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-10-15 20:13:19,297 INFO L87 Difference]: Start difference. First operand 62 states and 76 transitions. Second operand has 10 states, 10 states have (on average 2.5) internal successors, (25), 10 states have internal predecessors, (25), 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) [2022-10-15 20:13:19,349 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 20:13:19,349 INFO L93 Difference]: Finished difference Result 125 states and 154 transitions. [2022-10-15 20:13:19,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-10-15 20:13:19,350 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 2.5) internal successors, (25), 10 states have internal predecessors, (25), 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 16 [2022-10-15 20:13:19,350 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 20:13:19,351 INFO L225 Difference]: With dead ends: 125 [2022-10-15 20:13:19,351 INFO L226 Difference]: Without dead ends: 70 [2022-10-15 20:13:19,352 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2022-10-15 20:13:19,353 INFO L413 NwaCegarLoop]: 40 mSDtfsCounter, 15 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 234 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 20:13:19,354 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 234 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 20:13:19,356 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2022-10-15 20:13:19,366 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 70. [2022-10-15 20:13:19,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70 states, 60 states have (on average 1.3333333333333333) internal successors, (80), 66 states have internal predecessors, (80), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-15 20:13:19,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 84 transitions. [2022-10-15 20:13:19,367 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 84 transitions. Word has length 16 [2022-10-15 20:13:19,368 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 20:13:19,368 INFO L495 AbstractCegarLoop]: Abstraction has 70 states and 84 transitions. [2022-10-15 20:13:19,368 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 2.5) internal successors, (25), 10 states have internal predecessors, (25), 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) [2022-10-15 20:13:19,368 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 84 transitions. [2022-10-15 20:13:19,370 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-10-15 20:13:19,370 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 20:13:19,370 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 20:13:19,417 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-10-15 20:13:19,582 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,SelfDestructingSolverStorable9 [2022-10-15 20:13:19,584 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-15 20:13:19,584 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 20:13:19,585 INFO L85 PathProgramCache]: Analyzing trace with hash -1666085578, now seen corresponding path program 2 times [2022-10-15 20:13:19,585 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 20:13:19,585 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1235348469] [2022-10-15 20:13:19,586 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 20:13:19,586 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 20:13:19,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 20:13:19,705 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-10-15 20:13:19,705 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 20:13:19,706 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1235348469] [2022-10-15 20:13:19,706 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1235348469] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 20:13:19,706 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1422023797] [2022-10-15 20:13:19,706 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-15 20:13:19,706 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 20:13:19,707 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 20:13:19,708 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) [2022-10-15 20:13:19,718 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-10-15 20:13:19,788 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-10-15 20:13:19,789 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-15 20:13:19,790 INFO L263 TraceCheckSpWp]: Trace formula consists of 132 conjuncts, 8 conjunts are in the unsatisfiable core [2022-10-15 20:13:19,792 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 20:13:19,860 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-10-15 20:13:19,860 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-15 20:13:19,959 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-10-15 20:13:19,960 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1422023797] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-15 20:13:19,960 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-15 20:13:19,960 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 9, 9] total 18 [2022-10-15 20:13:19,960 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1916183197] [2022-10-15 20:13:19,961 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-15 20:13:19,961 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-10-15 20:13:19,961 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 20:13:19,962 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-10-15 20:13:19,963 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=229, Unknown=0, NotChecked=0, Total=306 [2022-10-15 20:13:19,963 INFO L87 Difference]: Start difference. First operand 70 states and 84 transitions. Second operand has 18 states, 18 states have (on average 2.8333333333333335) internal successors, (51), 18 states have internal predecessors, (51), 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) [2022-10-15 20:13:20,231 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 20:13:20,232 INFO L93 Difference]: Finished difference Result 196 states and 237 transitions. [2022-10-15 20:13:20,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-10-15 20:13:20,233 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.8333333333333335) internal successors, (51), 18 states have internal predecessors, (51), 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 24 [2022-10-15 20:13:20,233 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 20:13:20,234 INFO L225 Difference]: With dead ends: 196 [2022-10-15 20:13:20,234 INFO L226 Difference]: Without dead ends: 141 [2022-10-15 20:13:20,235 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 167 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=276, Invalid=654, Unknown=0, NotChecked=0, Total=930 [2022-10-15 20:13:20,236 INFO L413 NwaCegarLoop]: 63 mSDtfsCounter, 117 mSDsluCounter, 380 mSDsCounter, 0 mSdLazyCounter, 97 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 121 SdHoareTripleChecker+Valid, 443 SdHoareTripleChecker+Invalid, 109 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 97 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 20:13:20,237 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [121 Valid, 443 Invalid, 109 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 97 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 20:13:20,238 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 141 states. [2022-10-15 20:13:20,247 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 141 to 99. [2022-10-15 20:13:20,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 99 states, 89 states have (on average 1.2921348314606742) internal successors, (115), 95 states have internal predecessors, (115), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-15 20:13:20,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 119 transitions. [2022-10-15 20:13:20,249 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 119 transitions. Word has length 24 [2022-10-15 20:13:20,249 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 20:13:20,249 INFO L495 AbstractCegarLoop]: Abstraction has 99 states and 119 transitions. [2022-10-15 20:13:20,250 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.8333333333333335) internal successors, (51), 18 states have internal predecessors, (51), 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) [2022-10-15 20:13:20,250 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 119 transitions. [2022-10-15 20:13:20,251 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2022-10-15 20:13:20,251 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 20:13:20,251 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 20:13:20,289 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-10-15 20:13:20,466 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 20:13:20,467 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-15 20:13:20,467 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 20:13:20,468 INFO L85 PathProgramCache]: Analyzing trace with hash -546876404, now seen corresponding path program 1 times [2022-10-15 20:13:20,468 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 20:13:20,468 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [559561359] [2022-10-15 20:13:20,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 20:13:20,469 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 20:13:20,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 20:13:20,601 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 91 trivial. 0 not checked. [2022-10-15 20:13:20,601 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 20:13:20,601 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [559561359] [2022-10-15 20:13:20,602 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [559561359] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 20:13:20,602 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1073204593] [2022-10-15 20:13:20,602 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 20:13:20,602 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 20:13:20,602 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 20:13:20,604 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) [2022-10-15 20:13:20,606 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-10-15 20:13:20,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 20:13:20,693 INFO L263 TraceCheckSpWp]: Trace formula consists of 184 conjuncts, 16 conjunts are in the unsatisfiable core [2022-10-15 20:13:20,696 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 20:13:20,891 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 0 proven. 91 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-10-15 20:13:20,892 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-15 20:13:21,225 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 0 proven. 91 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-10-15 20:13:21,225 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1073204593] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-15 20:13:21,225 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-15 20:13:21,225 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 17, 17] total 34 [2022-10-15 20:13:21,226 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [654311590] [2022-10-15 20:13:21,226 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-15 20:13:21,228 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2022-10-15 20:13:21,228 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 20:13:21,229 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2022-10-15 20:13:21,231 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=277, Invalid=845, Unknown=0, NotChecked=0, Total=1122 [2022-10-15 20:13:21,231 INFO L87 Difference]: Start difference. First operand 99 states and 119 transitions. Second operand has 34 states, 34 states have (on average 2.4411764705882355) internal successors, (83), 34 states have internal predecessors, (83), 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) [2022-10-15 20:13:21,866 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 20:13:21,866 INFO L93 Difference]: Finished difference Result 263 states and 324 transitions. [2022-10-15 20:13:21,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-10-15 20:13:21,867 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 34 states have (on average 2.4411764705882355) internal successors, (83), 34 states have internal predecessors, (83), 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 40 [2022-10-15 20:13:21,867 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 20:13:21,869 INFO L225 Difference]: With dead ends: 263 [2022-10-15 20:13:21,869 INFO L226 Difference]: Without dead ends: 195 [2022-10-15 20:13:21,872 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 905 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=1068, Invalid=2838, Unknown=0, NotChecked=0, Total=3906 [2022-10-15 20:13:21,873 INFO L413 NwaCegarLoop]: 39 mSDtfsCounter, 165 mSDsluCounter, 438 mSDsCounter, 0 mSdLazyCounter, 177 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 169 SdHoareTripleChecker+Valid, 477 SdHoareTripleChecker+Invalid, 201 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 177 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-15 20:13:21,873 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [169 Valid, 477 Invalid, 201 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 177 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-15 20:13:21,874 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 195 states. [2022-10-15 20:13:21,884 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 195 to 152. [2022-10-15 20:13:21,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 152 states, 142 states have (on average 1.2464788732394365) internal successors, (177), 148 states have internal predecessors, (177), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-15 20:13:21,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 152 states and 181 transitions. [2022-10-15 20:13:21,886 INFO L78 Accepts]: Start accepts. Automaton has 152 states and 181 transitions. Word has length 40 [2022-10-15 20:13:21,886 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 20:13:21,886 INFO L495 AbstractCegarLoop]: Abstraction has 152 states and 181 transitions. [2022-10-15 20:13:21,887 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 2.4411764705882355) internal successors, (83), 34 states have internal predecessors, (83), 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) [2022-10-15 20:13:21,887 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 181 transitions. [2022-10-15 20:13:21,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2022-10-15 20:13:21,889 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 20:13:21,889 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 15, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2022-10-15 20:13:21,924 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-10-15 20:13:22,104 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,SelfDestructingSolverStorable11 [2022-10-15 20:13:22,105 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-15 20:13:22,105 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 20:13:22,106 INFO L85 PathProgramCache]: Analyzing trace with hash -1117628247, now seen corresponding path program 1 times [2022-10-15 20:13:22,106 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 20:13:22,106 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [750135090] [2022-10-15 20:13:22,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 20:13:22,107 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 20:13:22,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 20:13:22,254 INFO L134 CoverageAnalysis]: Checked inductivity of 440 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 436 trivial. 0 not checked. [2022-10-15 20:13:22,254 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 20:13:22,254 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [750135090] [2022-10-15 20:13:22,255 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [750135090] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 20:13:22,255 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 20:13:22,255 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-15 20:13:22,255 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1027288364] [2022-10-15 20:13:22,255 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 20:13:22,256 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 20:13:22,256 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 20:13:22,257 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 20:13:22,257 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 20:13:22,257 INFO L87 Difference]: Start difference. First operand 152 states and 181 transitions. Second operand has 3 states, 2 states have (on average 9.0) internal successors, (18), 3 states have internal predecessors, (18), 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) [2022-10-15 20:13:22,278 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 20:13:22,278 INFO L93 Difference]: Finished difference Result 152 states and 181 transitions. [2022-10-15 20:13:22,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 20:13:22,282 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 9.0) internal successors, (18), 3 states have internal predecessors, (18), 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 [2022-10-15 20:13:22,282 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 20:13:22,283 INFO L225 Difference]: With dead ends: 152 [2022-10-15 20:13:22,283 INFO L226 Difference]: Without dead ends: 151 [2022-10-15 20:13:22,284 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 [2022-10-15 20:13:22,285 INFO L413 NwaCegarLoop]: 38 mSDtfsCounter, 11 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 63 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 [2022-10-15 20:13:22,285 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 63 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 20:13:22,286 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 151 states. [2022-10-15 20:13:22,296 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 151 to 151. [2022-10-15 20:13:22,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 151 states, 142 states have (on average 1.204225352112676) internal successors, (171), 147 states have internal predecessors, (171), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-15 20:13:22,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151 states to 151 states and 175 transitions. [2022-10-15 20:13:22,298 INFO L78 Accepts]: Start accepts. Automaton has 151 states and 175 transitions. Word has length 74 [2022-10-15 20:13:22,298 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 20:13:22,298 INFO L495 AbstractCegarLoop]: Abstraction has 151 states and 175 transitions. [2022-10-15 20:13:22,298 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 9.0) internal successors, (18), 3 states have internal predecessors, (18), 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) [2022-10-15 20:13:22,298 INFO L276 IsEmpty]: Start isEmpty. Operand 151 states and 175 transitions. [2022-10-15 20:13:22,300 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2022-10-15 20:13:22,300 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 20:13:22,300 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 15, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1] [2022-10-15 20:13:22,300 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-10-15 20:13:22,300 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-15 20:13:22,301 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 20:13:22,301 INFO L85 PathProgramCache]: Analyzing trace with hash 501666361, now seen corresponding path program 3 times [2022-10-15 20:13:22,301 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 20:13:22,302 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [330385015] [2022-10-15 20:13:22,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 20:13:22,302 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 20:13:22,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 20:13:22,490 INFO L134 CoverageAnalysis]: Checked inductivity of 447 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 435 trivial. 0 not checked. [2022-10-15 20:13:22,490 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 20:13:22,490 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [330385015] [2022-10-15 20:13:22,491 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [330385015] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 20:13:22,491 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1086818823] [2022-10-15 20:13:22,491 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-10-15 20:13:22,491 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 20:13:22,491 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 20:13:22,492 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) [2022-10-15 20:13:22,518 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-10-15 20:13:22,589 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2022-10-15 20:13:22,589 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-15 20:13:22,591 INFO L263 TraceCheckSpWp]: Trace formula consists of 135 conjuncts, 4 conjunts are in the unsatisfiable core [2022-10-15 20:13:22,594 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 20:13:22,684 INFO L134 CoverageAnalysis]: Checked inductivity of 447 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 435 trivial. 0 not checked. [2022-10-15 20:13:22,684 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-15 20:13:22,780 INFO L134 CoverageAnalysis]: Checked inductivity of 447 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 435 trivial. 0 not checked. [2022-10-15 20:13:22,780 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1086818823] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-15 20:13:22,780 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-15 20:13:22,780 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 8 [2022-10-15 20:13:22,781 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [104456934] [2022-10-15 20:13:22,781 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-15 20:13:22,781 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-10-15 20:13:22,781 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 20:13:22,782 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-10-15 20:13:22,782 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=36, Unknown=0, NotChecked=0, Total=72 [2022-10-15 20:13:22,782 INFO L87 Difference]: Start difference. First operand 151 states and 175 transitions. Second operand has 9 states, 8 states have (on average 6.625) internal successors, (53), 9 states have internal predecessors, (53), 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) [2022-10-15 20:13:22,879 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 20:13:22,880 INFO L93 Difference]: Finished difference Result 358 states and 433 transitions. [2022-10-15 20:13:22,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-10-15 20:13:22,881 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 6.625) internal successors, (53), 9 states have internal predecessors, (53), 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 78 [2022-10-15 20:13:22,882 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 20:13:22,884 INFO L225 Difference]: With dead ends: 358 [2022-10-15 20:13:22,885 INFO L226 Difference]: Without dead ends: 357 [2022-10-15 20:13:22,885 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 158 GetRequests, 151 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=36, Invalid=36, Unknown=0, NotChecked=0, Total=72 [2022-10-15 20:13:22,886 INFO L413 NwaCegarLoop]: 66 mSDtfsCounter, 213 mSDsluCounter, 210 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 225 SdHoareTripleChecker+Valid, 276 SdHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 63 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 20:13:22,886 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [225 Valid, 276 Invalid, 75 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 20:13:22,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 357 states. [2022-10-15 20:13:22,905 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 357 to 243. [2022-10-15 20:13:22,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 243 states, 234 states have (on average 1.2435897435897436) internal successors, (291), 239 states have internal predecessors, (291), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-15 20:13:22,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 243 states to 243 states and 295 transitions. [2022-10-15 20:13:22,908 INFO L78 Accepts]: Start accepts. Automaton has 243 states and 295 transitions. Word has length 78 [2022-10-15 20:13:22,909 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 20:13:22,909 INFO L495 AbstractCegarLoop]: Abstraction has 243 states and 295 transitions. [2022-10-15 20:13:22,910 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 6.625) internal successors, (53), 9 states have internal predecessors, (53), 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) [2022-10-15 20:13:22,910 INFO L276 IsEmpty]: Start isEmpty. Operand 243 states and 295 transitions. [2022-10-15 20:13:22,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2022-10-15 20:13:22,912 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 20:13:22,912 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 15, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1] [2022-10-15 20:13:22,952 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2022-10-15 20:13:23,126 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,SelfDestructingSolverStorable13 [2022-10-15 20:13:23,127 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-15 20:13:23,128 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 20:13:23,128 INFO L85 PathProgramCache]: Analyzing trace with hash 1452182533, now seen corresponding path program 2 times [2022-10-15 20:13:23,128 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 20:13:23,129 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [191661792] [2022-10-15 20:13:23,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 20:13:23,129 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 20:13:23,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 20:13:23,318 INFO L134 CoverageAnalysis]: Checked inductivity of 447 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 435 trivial. 0 not checked. [2022-10-15 20:13:23,319 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 20:13:23,319 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [191661792] [2022-10-15 20:13:23,319 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [191661792] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 20:13:23,319 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1176301605] [2022-10-15 20:13:23,319 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-15 20:13:23,320 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 20:13:23,320 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 20:13:23,321 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) [2022-10-15 20:13:23,340 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2022-10-15 20:13:23,454 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-10-15 20:13:23,455 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-15 20:13:23,457 INFO L263 TraceCheckSpWp]: Trace formula consists of 304 conjuncts, 32 conjunts are in the unsatisfiable core [2022-10-15 20:13:23,477 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 20:13:24,030 INFO L134 CoverageAnalysis]: Checked inductivity of 447 backedges. 0 proven. 435 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-10-15 20:13:24,031 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-15 20:13:25,130 INFO L134 CoverageAnalysis]: Checked inductivity of 447 backedges. 0 proven. 435 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-10-15 20:13:25,131 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1176301605] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-15 20:13:25,131 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-15 20:13:25,131 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 33, 33] total 67 [2022-10-15 20:13:25,131 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [767217074] [2022-10-15 20:13:25,132 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-15 20:13:25,132 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 67 states [2022-10-15 20:13:25,133 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 20:13:25,134 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 67 interpolants. [2022-10-15 20:13:25,137 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1065, Invalid=3357, Unknown=0, NotChecked=0, Total=4422 [2022-10-15 20:13:25,138 INFO L87 Difference]: Start difference. First operand 243 states and 295 transitions. Second operand has 67 states, 67 states have (on average 2.283582089552239) internal successors, (153), 67 states have internal predecessors, (153), 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) [2022-10-15 20:13:27,215 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 20:13:27,215 INFO L93 Difference]: Finished difference Result 606 states and 753 transitions. [2022-10-15 20:13:27,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 66 states. [2022-10-15 20:13:27,216 INFO L78 Accepts]: Start accepts. Automaton has has 67 states, 67 states have (on average 2.283582089552239) internal successors, (153), 67 states have internal predecessors, (153), 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 78 [2022-10-15 20:13:27,216 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 20:13:27,219 INFO L225 Difference]: With dead ends: 606 [2022-10-15 20:13:27,219 INFO L226 Difference]: Without dead ends: 426 [2022-10-15 20:13:27,225 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 219 GetRequests, 93 SyntacticMatches, 0 SemanticMatches, 126 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4219 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=4253, Invalid=12003, Unknown=0, NotChecked=0, Total=16256 [2022-10-15 20:13:27,227 INFO L413 NwaCegarLoop]: 46 mSDtfsCounter, 402 mSDsluCounter, 587 mSDsCounter, 0 mSdLazyCounter, 286 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 408 SdHoareTripleChecker+Valid, 633 SdHoareTripleChecker+Invalid, 338 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 286 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-10-15 20:13:27,227 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [408 Valid, 633 Invalid, 338 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 286 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-10-15 20:13:27,228 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 426 states. [2022-10-15 20:13:27,249 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 426 to 362. [2022-10-15 20:13:27,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 362 states, 353 states have (on average 1.2039660056657224) internal successors, (425), 358 states have internal predecessors, (425), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-15 20:13:27,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 362 states to 362 states and 429 transitions. [2022-10-15 20:13:27,252 INFO L78 Accepts]: Start accepts. Automaton has 362 states and 429 transitions. Word has length 78 [2022-10-15 20:13:27,253 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 20:13:27,253 INFO L495 AbstractCegarLoop]: Abstraction has 362 states and 429 transitions. [2022-10-15 20:13:27,253 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 67 states, 67 states have (on average 2.283582089552239) internal successors, (153), 67 states have internal predecessors, (153), 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) [2022-10-15 20:13:27,254 INFO L276 IsEmpty]: Start isEmpty. Operand 362 states and 429 transitions. [2022-10-15 20:13:27,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2022-10-15 20:13:27,255 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 20:13:27,256 INFO L195 NwaCegarLoop]: trace histogram [31, 31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 20:13:27,294 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2022-10-15 20:13:27,470 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,SelfDestructingSolverStorable14 [2022-10-15 20:13:27,471 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-15 20:13:27,472 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 20:13:27,472 INFO L85 PathProgramCache]: Analyzing trace with hash -175129513, now seen corresponding path program 1 times [2022-10-15 20:13:27,472 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 20:13:27,473 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1704440663] [2022-10-15 20:13:27,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 20:13:27,473 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 20:13:27,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 20:13:27,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2022-10-15 20:13:27,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 20:13:27,683 INFO L134 CoverageAnalysis]: Checked inductivity of 1892 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1891 trivial. 0 not checked. [2022-10-15 20:13:27,684 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 20:13:27,684 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1704440663] [2022-10-15 20:13:27,684 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1704440663] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 20:13:27,684 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [976886069] [2022-10-15 20:13:27,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 20:13:27,684 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 20:13:27,685 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 20:13:27,686 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) [2022-10-15 20:13:27,695 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2022-10-15 20:13:27,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 20:13:27,839 INFO L263 TraceCheckSpWp]: Trace formula consists of 506 conjuncts, 64 conjunts are in the unsatisfiable core [2022-10-15 20:13:27,845 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 20:13:29,685 INFO L134 CoverageAnalysis]: Checked inductivity of 1892 backedges. 0 proven. 1891 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-15 20:13:29,685 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-15 20:13:33,706 INFO L134 CoverageAnalysis]: Checked inductivity of 1892 backedges. 0 proven. 1891 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-15 20:13:33,706 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [976886069] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-15 20:13:33,706 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-15 20:13:33,706 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 65, 65] total 130 [2022-10-15 20:13:33,707 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2080619012] [2022-10-15 20:13:33,707 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-15 20:13:33,708 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 130 states [2022-10-15 20:13:33,708 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 20:13:33,710 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 130 interpolants. [2022-10-15 20:13:33,714 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=4165, Invalid=12605, Unknown=0, NotChecked=0, Total=16770 [2022-10-15 20:13:33,715 INFO L87 Difference]: Start difference. First operand 362 states and 429 transitions. Second operand has 130 states, 130 states have (on average 2.1846153846153844) internal successors, (284), 130 states have internal predecessors, (284), 1 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-10-15 20:13:40,352 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 20:13:40,353 INFO L93 Difference]: Finished difference Result 725 states and 890 transitions. [2022-10-15 20:13:40,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 129 states. [2022-10-15 20:13:40,354 INFO L78 Accepts]: Start accepts. Automaton has has 130 states, 130 states have (on average 2.1846153846153844) internal successors, (284), 130 states have internal predecessors, (284), 1 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 144 [2022-10-15 20:13:40,354 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 20:13:40,357 INFO L225 Difference]: With dead ends: 725 [2022-10-15 20:13:40,357 INFO L226 Difference]: Without dead ends: 490 [2022-10-15 20:13:40,371 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 417 GetRequests, 164 SyntacticMatches, 0 SemanticMatches, 253 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17765 ImplicationChecksByTransitivity, 11.0s TimeCoverageRelationStatistics Valid=16572, Invalid=48198, Unknown=0, NotChecked=0, Total=64770 [2022-10-15 20:13:40,372 INFO L413 NwaCegarLoop]: 34 mSDtfsCounter, 928 mSDsluCounter, 329 mSDsCounter, 0 mSdLazyCounter, 460 mSolverCounterSat, 105 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 928 SdHoareTripleChecker+Valid, 363 SdHoareTripleChecker+Invalid, 565 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 105 IncrementalHoareTripleChecker+Valid, 460 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-10-15 20:13:40,372 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [928 Valid, 363 Invalid, 565 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [105 Valid, 460 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-10-15 20:13:40,399 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 490 states. [2022-10-15 20:13:40,422 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 490 to 490. [2022-10-15 20:13:40,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 490 states, 481 states have (on average 1.1455301455301454) internal successors, (551), 486 states have internal predecessors, (551), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-15 20:13:40,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 490 states to 490 states and 555 transitions. [2022-10-15 20:13:40,426 INFO L78 Accepts]: Start accepts. Automaton has 490 states and 555 transitions. Word has length 144 [2022-10-15 20:13:40,426 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 20:13:40,426 INFO L495 AbstractCegarLoop]: Abstraction has 490 states and 555 transitions. [2022-10-15 20:13:40,427 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 130 states, 130 states have (on average 2.1846153846153844) internal successors, (284), 130 states have internal predecessors, (284), 1 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-10-15 20:13:40,427 INFO L276 IsEmpty]: Start isEmpty. Operand 490 states and 555 transitions. [2022-10-15 20:13:40,430 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 277 [2022-10-15 20:13:40,431 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 20:13:40,431 INFO L195 NwaCegarLoop]: trace histogram [63, 63, 63, 63, 4, 4, 3, 3, 3, 3, 1, 1, 1, 1] [2022-10-15 20:13:40,459 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2022-10-15 20:13:40,644 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2022-10-15 20:13:40,645 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-15 20:13:40,646 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 20:13:40,646 INFO L85 PathProgramCache]: Analyzing trace with hash -282184226, now seen corresponding path program 3 times [2022-10-15 20:13:40,646 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 20:13:40,647 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [209907582] [2022-10-15 20:13:40,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 20:13:40,647 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 20:13:40,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 20:13:41,319 INFO L134 CoverageAnalysis]: Checked inductivity of 7902 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 7875 trivial. 0 not checked. [2022-10-15 20:13:41,320 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 20:13:41,320 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [209907582] [2022-10-15 20:13:41,320 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [209907582] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 20:13:41,320 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2091237185] [2022-10-15 20:13:41,321 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-10-15 20:13:41,321 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 20:13:41,321 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 20:13:41,322 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) [2022-10-15 20:13:41,334 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2022-10-15 20:13:41,490 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2022-10-15 20:13:41,490 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-15 20:13:41,492 INFO L263 TraceCheckSpWp]: Trace formula consists of 164 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-15 20:13:41,498 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 20:13:41,824 INFO L134 CoverageAnalysis]: Checked inductivity of 7902 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 7875 trivial. 0 not checked. [2022-10-15 20:13:41,824 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-15 20:13:42,183 INFO L134 CoverageAnalysis]: Checked inductivity of 7902 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 7875 trivial. 0 not checked. [2022-10-15 20:13:42,184 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2091237185] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-15 20:13:42,184 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-15 20:13:42,184 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2022-10-15 20:13:42,185 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1243146810] [2022-10-15 20:13:42,185 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-15 20:13:42,186 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-10-15 20:13:42,186 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 20:13:42,186 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-10-15 20:13:42,187 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=55, Unknown=0, NotChecked=0, Total=110 [2022-10-15 20:13:42,187 INFO L87 Difference]: Start difference. First operand 490 states and 555 transitions. Second operand has 11 states, 10 states have (on average 6.5) internal successors, (65), 11 states have internal predecessors, (65), 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) [2022-10-15 20:13:42,331 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 20:13:42,331 INFO L93 Difference]: Finished difference Result 918 states and 1108 transitions. [2022-10-15 20:13:42,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-10-15 20:13:42,332 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 6.5) internal successors, (65), 11 states have internal predecessors, (65), 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 276 [2022-10-15 20:13:42,333 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 20:13:42,339 INFO L225 Difference]: With dead ends: 918 [2022-10-15 20:13:42,339 INFO L226 Difference]: Without dead ends: 917 [2022-10-15 20:13:42,340 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 555 GetRequests, 546 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=55, Invalid=55, Unknown=0, NotChecked=0, Total=110 [2022-10-15 20:13:42,340 INFO L413 NwaCegarLoop]: 72 mSDtfsCounter, 337 mSDsluCounter, 278 mSDsCounter, 0 mSdLazyCounter, 92 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 353 SdHoareTripleChecker+Valid, 350 SdHoareTripleChecker+Invalid, 116 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 92 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 20:13:42,341 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [353 Valid, 350 Invalid, 116 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 92 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 20:13:42,343 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 917 states. [2022-10-15 20:13:42,384 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 917 to 765. [2022-10-15 20:13:42,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 765 states, 756 states have (on average 1.1917989417989419) internal successors, (901), 761 states have internal predecessors, (901), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-15 20:13:42,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 765 states to 765 states and 905 transitions. [2022-10-15 20:13:42,390 INFO L78 Accepts]: Start accepts. Automaton has 765 states and 905 transitions. Word has length 276 [2022-10-15 20:13:42,391 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 20:13:42,391 INFO L495 AbstractCegarLoop]: Abstraction has 765 states and 905 transitions. [2022-10-15 20:13:42,391 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 6.5) internal successors, (65), 11 states have internal predecessors, (65), 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) [2022-10-15 20:13:42,391 INFO L276 IsEmpty]: Start isEmpty. Operand 765 states and 905 transitions. [2022-10-15 20:13:42,395 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 279 [2022-10-15 20:13:42,396 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 20:13:42,396 INFO L195 NwaCegarLoop]: trace histogram [63, 63, 63, 63, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 20:13:42,444 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2022-10-15 20:13:42,609 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 20:13:42,609 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-15 20:13:42,610 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 20:13:42,610 INFO L85 PathProgramCache]: Analyzing trace with hash -1780692310, now seen corresponding path program 2 times [2022-10-15 20:13:42,611 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 20:13:42,611 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [787775026] [2022-10-15 20:13:42,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 20:13:42,612 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 20:13:42,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 20:13:43,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 270 [2022-10-15 20:13:43,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 20:13:43,171 INFO L134 CoverageAnalysis]: Checked inductivity of 7883 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7883 trivial. 0 not checked. [2022-10-15 20:13:43,171 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 20:13:43,172 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [787775026] [2022-10-15 20:13:43,172 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [787775026] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 20:13:43,172 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 20:13:43,172 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-15 20:13:43,172 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [332105545] [2022-10-15 20:13:43,172 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 20:13:43,173 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-15 20:13:43,176 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 20:13:43,177 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-15 20:13:43,177 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-10-15 20:13:43,177 INFO L87 Difference]: Start difference. First operand 765 states and 905 transitions. Second operand has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-10-15 20:13:43,248 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 20:13:43,248 INFO L93 Difference]: Finished difference Result 806 states and 950 transitions. [2022-10-15 20:13:43,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-15 20:13:43,249 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 278 [2022-10-15 20:13:43,249 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 20:13:43,255 INFO L225 Difference]: With dead ends: 806 [2022-10-15 20:13:43,255 INFO L226 Difference]: Without dead ends: 785 [2022-10-15 20:13:43,256 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-10-15 20:13:43,257 INFO L413 NwaCegarLoop]: 45 mSDtfsCounter, 19 mSDsluCounter, 64 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 109 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 20:13:43,257 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 109 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 20:13:43,259 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 785 states. [2022-10-15 20:13:43,302 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 785 to 767. [2022-10-15 20:13:43,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 767 states, 758 states have (on average 1.1912928759894459) internal successors, (903), 763 states have internal predecessors, (903), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-15 20:13:43,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 767 states to 767 states and 907 transitions. [2022-10-15 20:13:43,309 INFO L78 Accepts]: Start accepts. Automaton has 767 states and 907 transitions. Word has length 278 [2022-10-15 20:13:43,309 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 20:13:43,309 INFO L495 AbstractCegarLoop]: Abstraction has 767 states and 907 transitions. [2022-10-15 20:13:43,310 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-10-15 20:13:43,310 INFO L276 IsEmpty]: Start isEmpty. Operand 767 states and 907 transitions. [2022-10-15 20:13:43,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 279 [2022-10-15 20:13:43,314 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 20:13:43,315 INFO L195 NwaCegarLoop]: trace histogram [63, 63, 63, 63, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 20:13:43,315 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-10-15 20:13:43,315 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-15 20:13:43,316 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 20:13:43,316 INFO L85 PathProgramCache]: Analyzing trace with hash -434479056, now seen corresponding path program 1 times [2022-10-15 20:13:43,316 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 20:13:43,316 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1296701499] [2022-10-15 20:13:43,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 20:13:43,317 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 20:13:43,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 20:13:43,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 270 [2022-10-15 20:13:43,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 20:13:43,886 INFO L134 CoverageAnalysis]: Checked inductivity of 7881 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7881 trivial. 0 not checked. [2022-10-15 20:13:43,886 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 20:13:43,886 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1296701499] [2022-10-15 20:13:43,887 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1296701499] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 20:13:43,887 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 20:13:43,887 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 20:13:43,887 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1056173933] [2022-10-15 20:13:43,887 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 20:13:43,889 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-15 20:13:43,890 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 20:13:43,890 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-15 20:13:43,890 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-15 20:13:43,891 INFO L87 Difference]: Start difference. First operand 767 states and 907 transitions. Second operand has 4 states, 3 states have (on average 8.333333333333334) internal successors, (25), 4 states have internal predecessors, (25), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-10-15 20:13:43,969 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 20:13:43,969 INFO L93 Difference]: Finished difference Result 784 states and 927 transitions. [2022-10-15 20:13:43,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-15 20:13:43,970 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 8.333333333333334) internal successors, (25), 4 states have internal predecessors, (25), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 278 [2022-10-15 20:13:43,971 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 20:13:43,977 INFO L225 Difference]: With dead ends: 784 [2022-10-15 20:13:43,978 INFO L226 Difference]: Without dead ends: 782 [2022-10-15 20:13:43,979 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-15 20:13:43,980 INFO L413 NwaCegarLoop]: 38 mSDtfsCounter, 10 mSDsluCounter, 68 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 106 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 20:13:43,980 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 106 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 20:13:43,983 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 782 states. [2022-10-15 20:13:44,037 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 782 to 773. [2022-10-15 20:13:44,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 773 states, 763 states have (on average 1.1913499344692005) internal successors, (909), 768 states have internal predecessors, (909), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-10-15 20:13:44,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 773 states to 773 states and 915 transitions. [2022-10-15 20:13:44,046 INFO L78 Accepts]: Start accepts. Automaton has 773 states and 915 transitions. Word has length 278 [2022-10-15 20:13:44,047 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 20:13:44,047 INFO L495 AbstractCegarLoop]: Abstraction has 773 states and 915 transitions. [2022-10-15 20:13:44,047 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 8.333333333333334) internal successors, (25), 4 states have internal predecessors, (25), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-10-15 20:13:44,048 INFO L276 IsEmpty]: Start isEmpty. Operand 773 states and 915 transitions. [2022-10-15 20:13:44,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 281 [2022-10-15 20:13:44,056 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 20:13:44,056 INFO L195 NwaCegarLoop]: trace histogram [63, 63, 63, 63, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 20:13:44,056 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-10-15 20:13:44,057 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-15 20:13:44,057 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 20:13:44,057 INFO L85 PathProgramCache]: Analyzing trace with hash -655325600, now seen corresponding path program 1 times [2022-10-15 20:13:44,058 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 20:13:44,058 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [131210154] [2022-10-15 20:13:44,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 20:13:44,058 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 20:13:44,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 20:13:44,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 272 [2022-10-15 20:13:44,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 20:13:44,573 INFO L134 CoverageAnalysis]: Checked inductivity of 7883 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7883 trivial. 0 not checked. [2022-10-15 20:13:44,573 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 20:13:44,573 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [131210154] [2022-10-15 20:13:44,573 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [131210154] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 20:13:44,574 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 20:13:44,574 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 20:13:44,574 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [448472612] [2022-10-15 20:13:44,574 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 20:13:44,575 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-15 20:13:44,575 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 20:13:44,576 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-15 20:13:44,576 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-15 20:13:44,576 INFO L87 Difference]: Start difference. First operand 773 states and 915 transitions. Second operand has 4 states, 3 states have (on average 8.0) internal successors, (24), 4 states have internal predecessors, (24), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-10-15 20:13:44,638 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 20:13:44,638 INFO L93 Difference]: Finished difference Result 782 states and 925 transitions. [2022-10-15 20:13:44,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-15 20:13:44,639 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 8.0) internal successors, (24), 4 states have internal predecessors, (24), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 280 [2022-10-15 20:13:44,640 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 20:13:44,645 INFO L225 Difference]: With dead ends: 782 [2022-10-15 20:13:44,645 INFO L226 Difference]: Without dead ends: 780 [2022-10-15 20:13:44,647 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-15 20:13:44,648 INFO L413 NwaCegarLoop]: 38 mSDtfsCounter, 8 mSDsluCounter, 68 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 106 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 20:13:44,649 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 106 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 20:13:44,655 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 780 states. [2022-10-15 20:13:44,717 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 780 to 779. [2022-10-15 20:13:44,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 779 states, 768 states have (on average 1.1901041666666667) internal successors, (914), 773 states have internal predecessors, (914), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-10-15 20:13:44,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 779 states to 779 states and 922 transitions. [2022-10-15 20:13:44,723 INFO L78 Accepts]: Start accepts. Automaton has 779 states and 922 transitions. Word has length 280 [2022-10-15 20:13:44,723 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 20:13:44,723 INFO L495 AbstractCegarLoop]: Abstraction has 779 states and 922 transitions. [2022-10-15 20:13:44,724 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 8.0) internal successors, (24), 4 states have internal predecessors, (24), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-10-15 20:13:44,724 INFO L276 IsEmpty]: Start isEmpty. Operand 779 states and 922 transitions. [2022-10-15 20:13:44,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 289 [2022-10-15 20:13:44,729 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 20:13:44,730 INFO L195 NwaCegarLoop]: trace histogram [63, 63, 63, 63, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 20:13:44,730 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-10-15 20:13:44,730 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-15 20:13:44,731 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 20:13:44,731 INFO L85 PathProgramCache]: Analyzing trace with hash -1913011563, now seen corresponding path program 1 times [2022-10-15 20:13:44,731 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 20:13:44,733 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [714215978] [2022-10-15 20:13:44,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 20:13:44,734 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 20:13:44,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 20:13:45,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 270 [2022-10-15 20:13:45,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 20:13:45,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 280 [2022-10-15 20:13:45,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 20:13:45,216 INFO L134 CoverageAnalysis]: Checked inductivity of 7890 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 7884 trivial. 0 not checked. [2022-10-15 20:13:45,216 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 20:13:45,216 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [714215978] [2022-10-15 20:13:45,216 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [714215978] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 20:13:45,217 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1793819346] [2022-10-15 20:13:45,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 20:13:45,217 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 20:13:45,217 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 20:13:45,221 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-15 20:13:45,246 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2022-10-15 20:13:45,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 20:13:45,486 INFO L263 TraceCheckSpWp]: Trace formula consists of 957 conjuncts, 128 conjunts are in the unsatisfiable core [2022-10-15 20:13:45,500 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 20:13:51,207 INFO L134 CoverageAnalysis]: Checked inductivity of 7890 backedges. 0 proven. 7875 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-10-15 20:13:51,208 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-15 20:14:06,220 INFO L134 CoverageAnalysis]: Checked inductivity of 7890 backedges. 0 proven. 7875 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-10-15 20:14:06,221 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1793819346] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-15 20:14:06,221 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-15 20:14:06,221 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 129, 129] total 259 [2022-10-15 20:14:06,221 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2032746386] [2022-10-15 20:14:06,221 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-15 20:14:06,222 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 259 states [2022-10-15 20:14:06,223 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 20:14:06,228 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 259 interpolants. [2022-10-15 20:14:06,236 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16521, Invalid=50301, Unknown=0, NotChecked=0, Total=66822 [2022-10-15 20:14:06,237 INFO L87 Difference]: Start difference. First operand 779 states and 922 transitions. Second operand has 259 states, 259 states have (on average 2.1274131274131274) internal successors, (551), 259 states have internal predecessors, (551), 1 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2)