/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_copyInit_ground.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-05d3305-m [2022-10-16 10:14:31,411 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-16 10:14:31,414 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-16 10:14:31,450 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-10-16 10:14:31,504 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-16 10:14:31,505 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-16 10:14:31,506 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-16 10:14:31,511 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 [2022-10-16 10:14:31,565 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-16 10:14:31,565 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-16 10:14:31,566 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-16 10:14:31,566 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-16 10:14:31,567 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-16 10:14:31,567 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-16 10:14:31,569 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-16 10:14:31,569 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-16 10:14:31,569 INFO L138 SettingsManager]: * Use SBE=true [2022-10-16 10:14:31,570 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-16 10:14:31,570 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-16 10:14:31,570 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-16 10:14:31,570 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-16 10:14:31,571 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-16 10:14:31,573 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-16 10:14:31,573 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-16 10:14:31,573 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-16 10:14:31,574 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-16 10:14:31,574 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-10-16 10:14:31,574 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-16 10:14:31,574 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-16 10:14:31,575 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-16 10:14:31,575 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-16 10:14:31,575 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-16 10:14:31,576 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-16 10:14:31,576 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-16 10:14:31,576 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 10:14:31,577 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-16 10:14:31,578 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-16 10:14:31,578 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-16 10:14:31,578 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-16 10:14:31,578 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-16 10:14:31,579 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-16 10:14:31,579 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-10-16 10:14:32,013 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-16 10:14:32,038 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-16 10:14:32,041 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-16 10:14:32,042 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-16 10:14:32,043 INFO L275 PluginConnector]: CDTParser initialized [2022-10-16 10:14:32,045 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/array-examples/standard_copyInit_ground.i [2022-10-16 10:14:32,140 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8ffb77566/0b11632b2ca44e5cb7ea8260743aa169/FLAG914af0ffe [2022-10-16 10:14:32,865 INFO L306 CDTParser]: Found 1 translation units. [2022-10-16 10:14:32,866 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-examples/standard_copyInit_ground.i [2022-10-16 10:14:32,874 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8ffb77566/0b11632b2ca44e5cb7ea8260743aa169/FLAG914af0ffe [2022-10-16 10:14:33,216 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8ffb77566/0b11632b2ca44e5cb7ea8260743aa169 [2022-10-16 10:14:33,219 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-16 10:14:33,225 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-10-16 10:14:33,226 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-16 10:14:33,227 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-16 10:14:33,234 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-16 10:14:33,235 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 10:14:33" (1/1) ... [2022-10-16 10:14:33,237 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2458592e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:14:33, skipping insertion in model container [2022-10-16 10:14:33,237 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 10:14:33" (1/1) ... [2022-10-16 10:14:33,246 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-16 10:14:33,265 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-16 10:14:33,414 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_copyInit_ground.i[817,830] [2022-10-16 10:14:33,429 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 10:14:33,437 INFO L203 MainTranslator]: Completed pre-run [2022-10-16 10:14:33,452 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_copyInit_ground.i[817,830] [2022-10-16 10:14:33,458 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 10:14:33,473 INFO L208 MainTranslator]: Completed translation [2022-10-16 10:14:33,474 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:14:33 WrapperNode [2022-10-16 10:14:33,474 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-16 10:14:33,476 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-16 10:14:33,476 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-16 10:14:33,476 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-16 10:14:33,484 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:14:33" (1/1) ... [2022-10-16 10:14:33,492 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:14:33" (1/1) ... [2022-10-16 10:14:33,514 INFO L138 Inliner]: procedures = 15, calls = 17, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 62 [2022-10-16 10:14:33,514 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-16 10:14:33,515 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-16 10:14:33,515 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-16 10:14:33,515 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-16 10:14:33,525 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:14:33" (1/1) ... [2022-10-16 10:14:33,526 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:14:33" (1/1) ... [2022-10-16 10:14:33,528 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:14:33" (1/1) ... [2022-10-16 10:14:33,528 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:14:33" (1/1) ... [2022-10-16 10:14:33,533 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:14:33" (1/1) ... [2022-10-16 10:14:33,538 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:14:33" (1/1) ... [2022-10-16 10:14:33,539 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:14:33" (1/1) ... [2022-10-16 10:14:33,541 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:14:33" (1/1) ... [2022-10-16 10:14:33,543 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-16 10:14:33,544 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-16 10:14:33,544 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-16 10:14:33,544 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-16 10:14:33,545 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:14:33" (1/1) ... [2022-10-16 10:14:33,552 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 10:14:33,565 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:14:33,580 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) [2022-10-16 10:14:33,609 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 [2022-10-16 10:14:33,651 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-16 10:14:33,651 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-16 10:14:33,651 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-10-16 10:14:33,652 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-10-16 10:14:33,652 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-16 10:14:33,652 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-16 10:14:33,652 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-10-16 10:14:33,654 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-10-16 10:14:33,764 INFO L235 CfgBuilder]: Building ICFG [2022-10-16 10:14:33,767 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-16 10:14:34,073 INFO L276 CfgBuilder]: Performing block encoding [2022-10-16 10:14:34,092 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-16 10:14:34,092 INFO L300 CfgBuilder]: Removed 3 assume(true) statements. [2022-10-16 10:14:34,098 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 10:14:34 BoogieIcfgContainer [2022-10-16 10:14:34,102 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-16 10:14:34,106 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-16 10:14:34,107 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-16 10:14:34,116 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-16 10:14:34,116 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 10:14:33" (1/3) ... [2022-10-16 10:14:34,117 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c9bf3c9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 10:14:34, skipping insertion in model container [2022-10-16 10:14:34,117 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:14:33" (2/3) ... [2022-10-16 10:14:34,120 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c9bf3c9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 10:14:34, skipping insertion in model container [2022-10-16 10:14:34,120 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 10:14:34" (3/3) ... [2022-10-16 10:14:34,125 INFO L112 eAbstractionObserver]: Analyzing ICFG standard_copyInit_ground.i [2022-10-16 10:14:34,149 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-16 10:14:34,150 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2022-10-16 10:14:34,216 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-16 10:14:34,256 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;@54b91798, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-16 10:14:34,257 INFO L358 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2022-10-16 10:14:34,262 INFO L276 IsEmpty]: Start isEmpty. Operand has 28 states, 21 states have (on average 1.619047619047619) internal successors, (34), 27 states have internal predecessors, (34), 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) [2022-10-16 10:14:34,269 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-10-16 10:14:34,269 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:14:34,270 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-10-16 10:14:34,271 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-10-16 10:14:34,277 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:14:34,277 INFO L85 PathProgramCache]: Analyzing trace with hash 925796, now seen corresponding path program 1 times [2022-10-16 10:14:34,288 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:14:34,289 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1365827586] [2022-10-16 10:14:34,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:14:34,289 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:14:34,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:14:34,562 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:14:34,563 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:14:34,563 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1365827586] [2022-10-16 10:14:34,565 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1365827586] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 10:14:34,566 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 10:14:34,566 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-16 10:14:34,568 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [901201888] [2022-10-16 10:14:34,569 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 10:14:34,575 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 10:14:34,577 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:14:34,623 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 10:14:34,625 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 10:14:34,628 INFO L87 Difference]: Start difference. First operand has 28 states, 21 states have (on average 1.619047619047619) internal successors, (34), 27 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:14:34,729 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:14:34,730 INFO L93 Difference]: Finished difference Result 60 states and 74 transitions. [2022-10-16 10:14:34,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 10:14:34,734 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2022-10-16 10:14:34,735 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:14:34,745 INFO L225 Difference]: With dead ends: 60 [2022-10-16 10:14:34,745 INFO L226 Difference]: Without dead ends: 32 [2022-10-16 10:14:34,750 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 [2022-10-16 10:14:34,761 INFO L413 NwaCegarLoop]: 25 mSDtfsCounter, 6 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 43 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 10:14:34,763 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 43 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 10:14:34,790 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2022-10-16 10:14:34,818 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 27. [2022-10-16 10:14:34,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 21 states have (on average 1.380952380952381) internal successors, (29), 26 states have internal predecessors, (29), 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) [2022-10-16 10:14:34,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 29 transitions. [2022-10-16 10:14:34,824 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 29 transitions. Word has length 4 [2022-10-16 10:14:34,825 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:14:34,825 INFO L495 AbstractCegarLoop]: Abstraction has 27 states and 29 transitions. [2022-10-16 10:14:34,826 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:14:34,827 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 29 transitions. [2022-10-16 10:14:34,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-10-16 10:14:34,827 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:14:34,827 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1] [2022-10-16 10:14:34,828 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-16 10:14:34,828 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-10-16 10:14:34,829 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:14:34,829 INFO L85 PathProgramCache]: Analyzing trace with hash 1810629419, now seen corresponding path program 1 times [2022-10-16 10:14:34,830 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:14:34,830 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1689952323] [2022-10-16 10:14:34,831 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:14:34,831 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:14:34,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:14:34,960 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-16 10:14:34,960 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:14:34,961 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1689952323] [2022-10-16 10:14:34,961 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1689952323] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 10:14:34,961 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 10:14:34,962 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-16 10:14:34,962 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1435784879] [2022-10-16 10:14:34,962 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 10:14:34,964 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 10:14:34,964 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:14:34,964 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 10:14:34,965 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 10:14:34,965 INFO L87 Difference]: Start difference. First operand 27 states and 29 transitions. Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:14:34,998 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:14:34,998 INFO L93 Difference]: Finished difference Result 27 states and 29 transitions. [2022-10-16 10:14:34,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 10:14:34,999 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2022-10-16 10:14:34,999 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:14:35,000 INFO L225 Difference]: With dead ends: 27 [2022-10-16 10:14:35,000 INFO L226 Difference]: Without dead ends: 26 [2022-10-16 10:14:35,000 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 [2022-10-16 10:14:35,003 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 7 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 28 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 10:14:35,003 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 28 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 10:14:35,005 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2022-10-16 10:14:35,008 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2022-10-16 10:14:35,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 21 states have (on average 1.3333333333333333) internal successors, (28), 25 states have internal predecessors, (28), 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) [2022-10-16 10:14:35,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 28 transitions. [2022-10-16 10:14:35,010 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 28 transitions. Word has length 7 [2022-10-16 10:14:35,010 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:14:35,011 INFO L495 AbstractCegarLoop]: Abstraction has 26 states and 28 transitions. [2022-10-16 10:14:35,011 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:14:35,011 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 28 transitions. [2022-10-16 10:14:35,012 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-10-16 10:14:35,012 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:14:35,012 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1] [2022-10-16 10:14:35,012 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-16 10:14:35,013 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-10-16 10:14:35,013 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:14:35,014 INFO L85 PathProgramCache]: Analyzing trace with hash 294937186, now seen corresponding path program 1 times [2022-10-16 10:14:35,014 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:14:35,014 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [313463347] [2022-10-16 10:14:35,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:14:35,015 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:14:35,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:14:35,094 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:14:35,094 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:14:35,095 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [313463347] [2022-10-16 10:14:35,095 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [313463347] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:14:35,095 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2001445713] [2022-10-16 10:14:35,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:14:35,096 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:14:35,096 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:14:35,098 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) [2022-10-16 10:14:35,111 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-10-16 10:14:35,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:14:35,162 INFO L263 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 3 conjunts are in the unsatisfiable core [2022-10-16 10:14:35,168 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:14:35,219 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:14:35,220 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 10:14:35,220 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2001445713] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 10:14:35,220 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 10:14:35,221 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2022-10-16 10:14:35,221 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [314495170] [2022-10-16 10:14:35,221 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 10:14:35,222 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 10:14:35,222 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:14:35,223 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 10:14:35,223 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-16 10:14:35,223 INFO L87 Difference]: Start difference. First operand 26 states and 28 transitions. Second operand has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:14:35,256 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:14:35,256 INFO L93 Difference]: Finished difference Result 31 states and 33 transitions. [2022-10-16 10:14:35,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 10:14:35,257 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2022-10-16 10:14:35,257 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:14:35,258 INFO L225 Difference]: With dead ends: 31 [2022-10-16 10:14:35,258 INFO L226 Difference]: Without dead ends: 30 [2022-10-16 10:14:35,259 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-16 10:14:35,261 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 25 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 24 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 10:14:35,262 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 24 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 10:14:35,263 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2022-10-16 10:14:35,266 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 23. [2022-10-16 10:14:35,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 19 states have (on average 1.3157894736842106) internal successors, (25), 22 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) [2022-10-16 10:14:35,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 25 transitions. [2022-10-16 10:14:35,268 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 25 transitions. Word has length 8 [2022-10-16 10:14:35,268 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:14:35,269 INFO L495 AbstractCegarLoop]: Abstraction has 23 states and 25 transitions. [2022-10-16 10:14:35,269 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:14:35,269 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 25 transitions. [2022-10-16 10:14:35,269 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-10-16 10:14:35,270 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:14:35,270 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:14:35,312 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-10-16 10:14:35,484 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 [2022-10-16 10:14:35,484 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-10-16 10:14:35,485 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:14:35,485 INFO L85 PathProgramCache]: Analyzing trace with hash -34860664, now seen corresponding path program 1 times [2022-10-16 10:14:35,486 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:14:35,486 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1733509710] [2022-10-16 10:14:35,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:14:35,487 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:14:35,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:14:35,550 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:14:35,550 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:14:35,551 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1733509710] [2022-10-16 10:14:35,551 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1733509710] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:14:35,551 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2060915052] [2022-10-16 10:14:35,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:14:35,552 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:14:35,552 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:14:35,553 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) [2022-10-16 10:14:35,559 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-10-16 10:14:35,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:14:35,608 INFO L263 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 3 conjunts are in the unsatisfiable core [2022-10-16 10:14:35,610 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:14:35,627 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:14:35,628 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 10:14:35,654 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:14:35,655 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2060915052] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 10:14:35,655 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 10:14:35,655 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2022-10-16 10:14:35,656 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [584290526] [2022-10-16 10:14:35,656 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 10:14:35,657 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-10-16 10:14:35,657 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:14:35,658 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-10-16 10:14:35,658 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2022-10-16 10:14:35,659 INFO L87 Difference]: Start difference. First operand 23 states and 25 transitions. Second operand has 7 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 7 states have internal predecessors, (19), 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) [2022-10-16 10:14:35,708 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:14:35,709 INFO L93 Difference]: Finished difference Result 54 states and 60 transitions. [2022-10-16 10:14:35,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-16 10:14:35,710 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 7 states have internal predecessors, (19), 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 [2022-10-16 10:14:35,710 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:14:35,711 INFO L225 Difference]: With dead ends: 54 [2022-10-16 10:14:35,711 INFO L226 Difference]: Without dead ends: 37 [2022-10-16 10:14:35,712 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2022-10-16 10:14:35,714 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 36 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 34 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 10:14:35,714 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 34 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 10:14:35,716 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2022-10-16 10:14:35,721 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 32. [2022-10-16 10:14:35,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32 states, 28 states have (on average 1.2142857142857142) internal successors, (34), 31 states have internal predecessors, (34), 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) [2022-10-16 10:14:35,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 34 transitions. [2022-10-16 10:14:35,723 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 34 transitions. Word has length 10 [2022-10-16 10:14:35,723 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:14:35,724 INFO L495 AbstractCegarLoop]: Abstraction has 32 states and 34 transitions. [2022-10-16 10:14:35,724 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 7 states have internal predecessors, (19), 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) [2022-10-16 10:14:35,724 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 34 transitions. [2022-10-16 10:14:35,725 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-10-16 10:14:35,725 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:14:35,726 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:14:35,763 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-10-16 10:14:35,939 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 [2022-10-16 10:14:35,940 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-10-16 10:14:35,941 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:14:35,942 INFO L85 PathProgramCache]: Analyzing trace with hash -1560493969, now seen corresponding path program 2 times [2022-10-16 10:14:35,942 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:14:35,943 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1007579591] [2022-10-16 10:14:35,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:14:35,943 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:14:35,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:14:36,110 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-10-16 10:14:36,111 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:14:36,111 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1007579591] [2022-10-16 10:14:36,111 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1007579591] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 10:14:36,112 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 10:14:36,112 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 10:14:36,112 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [509040911] [2022-10-16 10:14:36,112 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 10:14:36,113 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 10:14:36,113 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:14:36,114 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 10:14:36,114 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 10:14:36,115 INFO L87 Difference]: Start difference. First operand 32 states and 34 transitions. Second operand has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 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) [2022-10-16 10:14:36,157 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:14:36,157 INFO L93 Difference]: Finished difference Result 37 states and 39 transitions. [2022-10-16 10:14:36,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 10:14:36,158 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 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 19 [2022-10-16 10:14:36,159 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:14:36,159 INFO L225 Difference]: With dead ends: 37 [2022-10-16 10:14:36,160 INFO L226 Difference]: Without dead ends: 35 [2022-10-16 10:14:36,160 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 [2022-10-16 10:14:36,162 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 5 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 42 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 [2022-10-16 10:14:36,163 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 42 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 10:14:36,164 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2022-10-16 10:14:36,168 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2022-10-16 10:14:36,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 31 states have (on average 1.1935483870967742) internal successors, (37), 34 states have internal predecessors, (37), 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) [2022-10-16 10:14:36,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 37 transitions. [2022-10-16 10:14:36,170 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 37 transitions. Word has length 19 [2022-10-16 10:14:36,170 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:14:36,171 INFO L495 AbstractCegarLoop]: Abstraction has 35 states and 37 transitions. [2022-10-16 10:14:36,171 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 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) [2022-10-16 10:14:36,171 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 37 transitions. [2022-10-16 10:14:36,172 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-10-16 10:14:36,172 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:14:36,173 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:14:36,173 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-10-16 10:14:36,173 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-10-16 10:14:36,174 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:14:36,174 INFO L85 PathProgramCache]: Analyzing trace with hash 1557557675, now seen corresponding path program 1 times [2022-10-16 10:14:36,174 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:14:36,174 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1805158594] [2022-10-16 10:14:36,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:14:36,175 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:14:36,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:14:36,292 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2022-10-16 10:14:36,292 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:14:36,292 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1805158594] [2022-10-16 10:14:36,292 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1805158594] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 10:14:36,293 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 10:14:36,293 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 10:14:36,293 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [426324655] [2022-10-16 10:14:36,294 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 10:14:36,294 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 10:14:36,294 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:14:36,297 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 10:14:36,298 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 10:14:36,298 INFO L87 Difference]: Start difference. First operand 35 states and 37 transitions. Second operand has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:14:36,335 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:14:36,335 INFO L93 Difference]: Finished difference Result 35 states and 37 transitions. [2022-10-16 10:14:36,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 10:14:36,336 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 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 23 [2022-10-16 10:14:36,336 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:14:36,337 INFO L225 Difference]: With dead ends: 35 [2022-10-16 10:14:36,337 INFO L226 Difference]: Without dead ends: 34 [2022-10-16 10:14:36,338 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 [2022-10-16 10:14:36,339 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 7 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 37 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 10:14:36,340 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 37 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 10:14:36,341 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2022-10-16 10:14:36,345 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2022-10-16 10:14:36,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34 states, 31 states have (on average 1.1612903225806452) internal successors, (36), 33 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:14:36,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 36 transitions. [2022-10-16 10:14:36,347 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 36 transitions. Word has length 23 [2022-10-16 10:14:36,347 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:14:36,348 INFO L495 AbstractCegarLoop]: Abstraction has 34 states and 36 transitions. [2022-10-16 10:14:36,348 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:14:36,348 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 36 transitions. [2022-10-16 10:14:36,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-10-16 10:14:36,349 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:14:36,349 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2022-10-16 10:14:36,350 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-10-16 10:14:36,350 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-10-16 10:14:36,351 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:14:36,351 INFO L85 PathProgramCache]: Analyzing trace with hash 1039647732, now seen corresponding path program 1 times [2022-10-16 10:14:36,351 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:14:36,351 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [762478621] [2022-10-16 10:14:36,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:14:36,352 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:14:36,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:14:36,486 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-10-16 10:14:36,486 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:14:36,486 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [762478621] [2022-10-16 10:14:36,487 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [762478621] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:14:36,487 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [657900051] [2022-10-16 10:14:36,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:14:36,487 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:14:36,488 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:14:36,489 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) [2022-10-16 10:14:36,508 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-10-16 10:14:36,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:14:36,554 INFO L263 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 6 conjunts are in the unsatisfiable core [2022-10-16 10:14:36,556 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:14:36,603 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-10-16 10:14:36,603 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 10:14:36,694 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-10-16 10:14:36,694 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [657900051] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 10:14:36,695 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 10:14:36,695 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 13 [2022-10-16 10:14:36,695 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2128916666] [2022-10-16 10:14:36,695 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 10:14:36,696 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-10-16 10:14:36,696 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:14:36,697 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-10-16 10:14:36,697 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2022-10-16 10:14:36,698 INFO L87 Difference]: Start difference. First operand 34 states and 36 transitions. Second operand has 13 states, 13 states have (on average 3.0) internal successors, (39), 13 states have internal predecessors, (39), 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) [2022-10-16 10:14:36,795 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:14:36,795 INFO L93 Difference]: Finished difference Result 71 states and 80 transitions. [2022-10-16 10:14:36,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-10-16 10:14:36,796 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 3.0) internal successors, (39), 13 states have internal predecessors, (39), 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 [2022-10-16 10:14:36,796 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:14:36,797 INFO L225 Difference]: With dead ends: 71 [2022-10-16 10:14:36,797 INFO L226 Difference]: Without dead ends: 52 [2022-10-16 10:14:36,798 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2022-10-16 10:14:36,799 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 32 mSDsluCounter, 60 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 77 SdHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 10:14:36,800 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 77 Invalid, 75 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 10:14:36,801 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2022-10-16 10:14:36,807 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2022-10-16 10:14:36,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52 states, 49 states have (on average 1.1020408163265305) internal successors, (54), 51 states have internal predecessors, (54), 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) [2022-10-16 10:14:36,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 54 transitions. [2022-10-16 10:14:36,809 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 54 transitions. Word has length 24 [2022-10-16 10:14:36,809 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:14:36,810 INFO L495 AbstractCegarLoop]: Abstraction has 52 states and 54 transitions. [2022-10-16 10:14:36,810 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 3.0) internal successors, (39), 13 states have internal predecessors, (39), 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) [2022-10-16 10:14:36,810 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 54 transitions. [2022-10-16 10:14:36,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2022-10-16 10:14:36,812 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:14:36,812 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2022-10-16 10:14:36,847 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-10-16 10:14:37,025 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:14:37,026 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-10-16 10:14:37,027 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:14:37,028 INFO L85 PathProgramCache]: Analyzing trace with hash 464539604, now seen corresponding path program 2 times [2022-10-16 10:14:37,028 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:14:37,029 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1719750839] [2022-10-16 10:14:37,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:14:37,030 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:14:37,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:14:37,318 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 0 proven. 145 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-10-16 10:14:37,319 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:14:37,319 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1719750839] [2022-10-16 10:14:37,319 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1719750839] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:14:37,319 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [470983813] [2022-10-16 10:14:37,320 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-16 10:14:37,320 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:14:37,320 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:14:37,321 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) [2022-10-16 10:14:37,334 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-10-16 10:14:37,401 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-10-16 10:14:37,402 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 10:14:37,403 INFO L263 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 12 conjunts are in the unsatisfiable core [2022-10-16 10:14:37,406 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:14:37,468 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 0 proven. 145 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-10-16 10:14:37,469 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 10:14:37,693 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 0 proven. 145 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-10-16 10:14:37,694 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [470983813] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 10:14:37,694 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 10:14:37,694 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13, 13] total 25 [2022-10-16 10:14:37,695 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2097408207] [2022-10-16 10:14:37,695 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 10:14:37,695 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-10-16 10:14:37,695 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:14:37,696 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-10-16 10:14:37,697 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=300, Invalid=300, Unknown=0, NotChecked=0, Total=600 [2022-10-16 10:14:37,697 INFO L87 Difference]: Start difference. First operand 52 states and 54 transitions. Second operand has 25 states, 25 states have (on average 3.0) internal successors, (75), 25 states have internal predecessors, (75), 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) [2022-10-16 10:14:37,830 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:14:37,831 INFO L93 Difference]: Finished difference Result 107 states and 122 transitions. [2022-10-16 10:14:37,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-10-16 10:14:37,833 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.0) internal successors, (75), 25 states have internal predecessors, (75), 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 42 [2022-10-16 10:14:37,834 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:14:37,837 INFO L225 Difference]: With dead ends: 107 [2022-10-16 10:14:37,837 INFO L226 Difference]: Without dead ends: 88 [2022-10-16 10:14:37,838 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 72 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=300, Invalid=300, Unknown=0, NotChecked=0, Total=600 [2022-10-16 10:14:37,839 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 81 mSDsluCounter, 46 mSDsCounter, 0 mSdLazyCounter, 87 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 81 SdHoareTripleChecker+Valid, 63 SdHoareTripleChecker+Invalid, 106 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 87 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 10:14:37,840 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [81 Valid, 63 Invalid, 106 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 87 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 10:14:37,842 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states. [2022-10-16 10:14:37,863 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 88. [2022-10-16 10:14:37,865 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 88 states, 85 states have (on average 1.0588235294117647) internal successors, (90), 87 states have internal predecessors, (90), 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) [2022-10-16 10:14:37,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 90 transitions. [2022-10-16 10:14:37,869 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 90 transitions. Word has length 42 [2022-10-16 10:14:37,869 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:14:37,869 INFO L495 AbstractCegarLoop]: Abstraction has 88 states and 90 transitions. [2022-10-16 10:14:37,870 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.0) internal successors, (75), 25 states have internal predecessors, (75), 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) [2022-10-16 10:14:37,870 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 90 transitions. [2022-10-16 10:14:37,874 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2022-10-16 10:14:37,874 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:14:37,875 INFO L195 NwaCegarLoop]: trace histogram [22, 22, 22, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2022-10-16 10:14:37,902 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-10-16 10:14:38,090 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:14:38,091 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-10-16 10:14:38,092 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:14:38,092 INFO L85 PathProgramCache]: Analyzing trace with hash 670678932, now seen corresponding path program 3 times [2022-10-16 10:14:38,093 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:14:38,093 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [55587215] [2022-10-16 10:14:38,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:14:38,094 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:14:38,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:14:38,951 INFO L134 CoverageAnalysis]: Checked inductivity of 719 backedges. 0 proven. 715 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-10-16 10:14:38,951 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:14:38,952 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [55587215] [2022-10-16 10:14:38,952 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [55587215] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:14:38,952 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1900012577] [2022-10-16 10:14:38,952 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-10-16 10:14:38,952 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:14:38,953 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:14:38,954 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) [2022-10-16 10:14:38,975 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-10-16 10:14:39,030 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-10-16 10:14:39,030 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 10:14:39,031 INFO L263 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 4 conjunts are in the unsatisfiable core [2022-10-16 10:14:39,034 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:14:39,077 INFO L134 CoverageAnalysis]: Checked inductivity of 719 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 715 trivial. 0 not checked. [2022-10-16 10:14:39,078 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 10:14:39,078 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1900012577] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 10:14:39,078 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 10:14:39,078 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [25] total 27 [2022-10-16 10:14:39,079 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2121813073] [2022-10-16 10:14:39,079 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 10:14:39,079 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 10:14:39,079 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:14:39,080 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 10:14:39,080 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=305, Invalid=397, Unknown=0, NotChecked=0, Total=702 [2022-10-16 10:14:39,081 INFO L87 Difference]: Start difference. First operand 88 states and 90 transitions. Second operand has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:14:39,121 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:14:39,121 INFO L93 Difference]: Finished difference Result 88 states and 90 transitions. [2022-10-16 10:14:39,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 10:14:39,122 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 states have internal predecessors, (15), 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 [2022-10-16 10:14:39,122 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:14:39,123 INFO L225 Difference]: With dead ends: 88 [2022-10-16 10:14:39,123 INFO L226 Difference]: Without dead ends: 87 [2022-10-16 10:14:39,124 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 77 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=309, Invalid=447, Unknown=0, NotChecked=0, Total=756 [2022-10-16 10:14:39,125 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 15 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 24 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 10:14:39,125 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 24 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 10:14:39,126 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2022-10-16 10:14:39,134 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 84. [2022-10-16 10:14:39,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 84 states, 82 states have (on average 1.048780487804878) internal successors, (86), 83 states have internal predecessors, (86), 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) [2022-10-16 10:14:39,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 86 transitions. [2022-10-16 10:14:39,135 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 86 transitions. Word has length 78 [2022-10-16 10:14:39,136 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:14:39,136 INFO L495 AbstractCegarLoop]: Abstraction has 84 states and 86 transitions. [2022-10-16 10:14:39,136 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:14:39,137 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 86 transitions. [2022-10-16 10:14:39,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2022-10-16 10:14:39,138 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:14:39,138 INFO L195 NwaCegarLoop]: trace histogram [22, 22, 22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:14:39,175 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-10-16 10:14:39,348 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:14:39,349 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-10-16 10:14:39,350 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:14:39,350 INFO L85 PathProgramCache]: Analyzing trace with hash -1524193133, now seen corresponding path program 1 times [2022-10-16 10:14:39,351 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:14:39,351 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [104794994] [2022-10-16 10:14:39,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:14:39,351 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:14:39,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:14:39,558 INFO L134 CoverageAnalysis]: Checked inductivity of 716 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 715 trivial. 0 not checked. [2022-10-16 10:14:39,561 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:14:39,563 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [104794994] [2022-10-16 10:14:39,564 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [104794994] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:14:39,564 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1973238037] [2022-10-16 10:14:39,564 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:14:39,566 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:14:39,566 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:14:39,568 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) [2022-10-16 10:14:39,591 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-10-16 10:14:39,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:14:39,674 INFO L263 TraceCheckSpWp]: Trace formula consists of 274 conjuncts, 24 conjunts are in the unsatisfiable core [2022-10-16 10:14:39,678 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:14:40,079 INFO L134 CoverageAnalysis]: Checked inductivity of 716 backedges. 0 proven. 715 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-16 10:14:40,080 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 10:14:40,966 INFO L134 CoverageAnalysis]: Checked inductivity of 716 backedges. 0 proven. 715 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-16 10:14:40,966 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1973238037] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 10:14:40,966 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 10:14:40,966 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 25, 25] total 50 [2022-10-16 10:14:40,967 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [398261928] [2022-10-16 10:14:40,967 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 10:14:40,968 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 50 states [2022-10-16 10:14:40,968 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:14:40,970 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 50 interpolants. [2022-10-16 10:14:40,971 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1178, Invalid=1272, Unknown=0, NotChecked=0, Total=2450 [2022-10-16 10:14:40,971 INFO L87 Difference]: Start difference. First operand 84 states and 86 transitions. Second operand has 50 states, 50 states have (on average 3.2) internal successors, (160), 50 states have internal predecessors, (160), 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) [2022-10-16 10:14:41,227 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:14:41,227 INFO L93 Difference]: Finished difference Result 178 states and 206 transitions. [2022-10-16 10:14:41,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2022-10-16 10:14:41,228 INFO L78 Accepts]: Start accepts. Automaton has has 50 states, 50 states have (on average 3.2) internal successors, (160), 50 states have internal predecessors, (160), 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 81 [2022-10-16 10:14:41,229 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:14:41,230 INFO L225 Difference]: With dead ends: 178 [2022-10-16 10:14:41,230 INFO L226 Difference]: Without dead ends: 163 [2022-10-16 10:14:41,231 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 166 GetRequests, 117 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 88 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=1228, Invalid=1322, Unknown=0, NotChecked=0, Total=2550 [2022-10-16 10:14:41,232 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 151 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 177 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 151 SdHoareTripleChecker+Valid, 63 SdHoareTripleChecker+Invalid, 209 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 177 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-16 10:14:41,233 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [151 Valid, 63 Invalid, 209 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 177 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-16 10:14:41,234 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 163 states. [2022-10-16 10:14:41,247 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 163 to 160. [2022-10-16 10:14:41,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 160 states, 158 states have (on average 1.0253164556962024) internal successors, (162), 159 states have internal predecessors, (162), 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) [2022-10-16 10:14:41,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160 states to 160 states and 162 transitions. [2022-10-16 10:14:41,249 INFO L78 Accepts]: Start accepts. Automaton has 160 states and 162 transitions. Word has length 81 [2022-10-16 10:14:41,250 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:14:41,250 INFO L495 AbstractCegarLoop]: Abstraction has 160 states and 162 transitions. [2022-10-16 10:14:41,250 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 50 states, 50 states have (on average 3.2) internal successors, (160), 50 states have internal predecessors, (160), 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) [2022-10-16 10:14:41,250 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states and 162 transitions. [2022-10-16 10:14:41,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2022-10-16 10:14:41,253 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:14:41,253 INFO L195 NwaCegarLoop]: trace histogram [46, 46, 46, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:14:41,289 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-10-16 10:14:41,467 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:14:41,468 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-10-16 10:14:41,469 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:14:41,469 INFO L85 PathProgramCache]: Analyzing trace with hash 872906319, now seen corresponding path program 2 times [2022-10-16 10:14:41,470 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:14:41,470 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1034887348] [2022-10-16 10:14:41,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:14:41,470 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:14:41,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:14:41,822 INFO L134 CoverageAnalysis]: Checked inductivity of 3157 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3157 trivial. 0 not checked. [2022-10-16 10:14:41,822 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:14:41,822 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1034887348] [2022-10-16 10:14:41,823 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1034887348] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 10:14:41,823 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 10:14:41,823 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 10:14:41,823 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [331001871] [2022-10-16 10:14:41,824 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 10:14:41,824 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 10:14:41,824 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:14:41,825 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 10:14:41,826 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 10:14:41,826 INFO L87 Difference]: Start difference. First operand 160 states and 162 transitions. Second operand has 4 states, 3 states have (on average 6.0) internal successors, (18), 4 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) [2022-10-16 10:14:41,860 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:14:41,861 INFO L93 Difference]: Finished difference Result 168 states and 170 transitions. [2022-10-16 10:14:41,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 10:14:41,861 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 6.0) internal successors, (18), 4 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 157 [2022-10-16 10:14:41,862 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:14:41,863 INFO L225 Difference]: With dead ends: 168 [2022-10-16 10:14:41,864 INFO L226 Difference]: Without dead ends: 166 [2022-10-16 10:14:41,864 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 [2022-10-16 10:14:41,865 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 3 mSDsluCounter, 30 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 47 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 10:14:41,866 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 47 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 10:14:41,868 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 166 states. [2022-10-16 10:14:41,882 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 166 to 166. [2022-10-16 10:14:41,883 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 166 states, 164 states have (on average 1.024390243902439) internal successors, (168), 165 states have internal predecessors, (168), 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) [2022-10-16 10:14:41,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 166 states to 166 states and 168 transitions. [2022-10-16 10:14:41,885 INFO L78 Accepts]: Start accepts. Automaton has 166 states and 168 transitions. Word has length 157 [2022-10-16 10:14:41,885 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:14:41,886 INFO L495 AbstractCegarLoop]: Abstraction has 166 states and 168 transitions. [2022-10-16 10:14:41,886 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 6.0) internal successors, (18), 4 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) [2022-10-16 10:14:41,886 INFO L276 IsEmpty]: Start isEmpty. Operand 166 states and 168 transitions. [2022-10-16 10:14:41,888 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2022-10-16 10:14:41,888 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:14:41,889 INFO L195 NwaCegarLoop]: trace histogram [46, 46, 46, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:14:41,889 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-10-16 10:14:41,889 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-10-16 10:14:41,890 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:14:41,890 INFO L85 PathProgramCache]: Analyzing trace with hash 349756996, now seen corresponding path program 1 times [2022-10-16 10:14:41,890 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:14:41,890 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [711728655] [2022-10-16 10:14:41,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:14:41,891 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:14:41,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:14:42,181 INFO L134 CoverageAnalysis]: Checked inductivity of 3162 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 3158 trivial. 0 not checked. [2022-10-16 10:14:42,182 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:14:42,182 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [711728655] [2022-10-16 10:14:42,182 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [711728655] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 10:14:42,183 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 10:14:42,183 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 10:14:42,183 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1313810144] [2022-10-16 10:14:42,183 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 10:14:42,184 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 10:14:42,184 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:14:42,185 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 10:14:42,185 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 10:14:42,185 INFO L87 Difference]: Start difference. First operand 166 states and 168 transitions. Second operand has 4 states, 3 states have (on average 8.0) internal successors, (24), 4 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:14:42,209 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:14:42,209 INFO L93 Difference]: Finished difference Result 166 states and 168 transitions. [2022-10-16 10:14:42,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 10:14:42,210 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), 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 163 [2022-10-16 10:14:42,210 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:14:42,211 INFO L225 Difference]: With dead ends: 166 [2022-10-16 10:14:42,211 INFO L226 Difference]: Without dead ends: 165 [2022-10-16 10:14:42,212 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 [2022-10-16 10:14:42,213 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 5 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 40 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 [2022-10-16 10:14:42,213 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 40 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 10:14:42,214 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 165 states. [2022-10-16 10:14:42,227 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 165 to 165. [2022-10-16 10:14:42,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 165 states, 164 states have (on average 1.0182926829268293) internal successors, (167), 164 states have internal predecessors, (167), 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) [2022-10-16 10:14:42,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 165 states to 165 states and 167 transitions. [2022-10-16 10:14:42,229 INFO L78 Accepts]: Start accepts. Automaton has 165 states and 167 transitions. Word has length 163 [2022-10-16 10:14:42,230 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:14:42,230 INFO L495 AbstractCegarLoop]: Abstraction has 165 states and 167 transitions. [2022-10-16 10:14:42,230 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), 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) [2022-10-16 10:14:42,230 INFO L276 IsEmpty]: Start isEmpty. Operand 165 states and 167 transitions. [2022-10-16 10:14:42,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2022-10-16 10:14:42,232 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:14:42,232 INFO L195 NwaCegarLoop]: trace histogram [46, 46, 46, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:14:42,232 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-10-16 10:14:42,233 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-10-16 10:14:42,233 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:14:42,233 INFO L85 PathProgramCache]: Analyzing trace with hash -2042434922, now seen corresponding path program 1 times [2022-10-16 10:14:42,234 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:14:42,234 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [828784402] [2022-10-16 10:14:42,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:14:42,234 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:14:42,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:14:44,966 INFO L134 CoverageAnalysis]: Checked inductivity of 3163 backedges. 0 proven. 3151 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-10-16 10:14:44,966 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:14:44,966 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [828784402] [2022-10-16 10:14:44,967 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [828784402] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:14:44,967 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [330960298] [2022-10-16 10:14:44,967 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:14:44,967 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:14:44,968 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:14:44,969 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) [2022-10-16 10:14:44,994 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-10-16 10:14:45,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:14:45,136 INFO L263 TraceCheckSpWp]: Trace formula consists of 517 conjuncts, 48 conjunts are in the unsatisfiable core [2022-10-16 10:14:45,151 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:14:45,379 INFO L134 CoverageAnalysis]: Checked inductivity of 3163 backedges. 0 proven. 3151 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-10-16 10:14:45,379 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 10:14:48,586 INFO L134 CoverageAnalysis]: Checked inductivity of 3163 backedges. 0 proven. 3151 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-10-16 10:14:48,587 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [330960298] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 10:14:48,587 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 10:14:48,587 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [49, 49, 49] total 97 [2022-10-16 10:14:48,587 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [698205970] [2022-10-16 10:14:48,588 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 10:14:48,588 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 97 states [2022-10-16 10:14:48,589 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:14:48,591 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 97 interpolants. [2022-10-16 10:14:48,595 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=4656, Invalid=4656, Unknown=0, NotChecked=0, Total=9312 [2022-10-16 10:14:48,595 INFO L87 Difference]: Start difference. First operand 165 states and 167 transitions. Second operand has 97 states, 97 states have (on average 3.082474226804124) internal successors, (299), 97 states have internal predecessors, (299), 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) [2022-10-16 10:14:49,123 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:14:49,123 INFO L93 Difference]: Finished difference Result 333 states and 384 transitions. [2022-10-16 10:14:49,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 96 states. [2022-10-16 10:14:49,124 INFO L78 Accepts]: Start accepts. Automaton has has 97 states, 97 states have (on average 3.082474226804124) internal successors, (299), 97 states have internal predecessors, (299), 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 164 [2022-10-16 10:14:49,125 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:14:49,126 INFO L225 Difference]: With dead ends: 333 [2022-10-16 10:14:49,126 INFO L226 Difference]: Without dead ends: 309 [2022-10-16 10:14:49,130 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 375 GetRequests, 280 SyntacticMatches, 0 SemanticMatches, 95 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 184 ImplicationChecksByTransitivity, 3.9s TimeCoverageRelationStatistics Valid=4656, Invalid=4656, Unknown=0, NotChecked=0, Total=9312 [2022-10-16 10:14:49,131 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 205 mSDsluCounter, 69 mSDsCounter, 0 mSdLazyCounter, 321 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 205 SdHoareTripleChecker+Valid, 84 SdHoareTripleChecker+Invalid, 379 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 321 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-10-16 10:14:49,131 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [205 Valid, 84 Invalid, 379 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 321 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-10-16 10:14:49,132 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 309 states. [2022-10-16 10:14:49,150 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 309 to 309. [2022-10-16 10:14:49,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 309 states, 308 states have (on average 1.0097402597402598) internal successors, (311), 308 states have internal predecessors, (311), 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) [2022-10-16 10:14:49,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 309 states to 309 states and 311 transitions. [2022-10-16 10:14:49,152 INFO L78 Accepts]: Start accepts. Automaton has 309 states and 311 transitions. Word has length 164 [2022-10-16 10:14:49,152 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:14:49,152 INFO L495 AbstractCegarLoop]: Abstraction has 309 states and 311 transitions. [2022-10-16 10:14:49,153 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 97 states, 97 states have (on average 3.082474226804124) internal successors, (299), 97 states have internal predecessors, (299), 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) [2022-10-16 10:14:49,153 INFO L276 IsEmpty]: Start isEmpty. Operand 309 states and 311 transitions. [2022-10-16 10:14:49,157 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 309 [2022-10-16 10:14:49,157 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:14:49,157 INFO L195 NwaCegarLoop]: trace histogram [94, 94, 94, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:14:49,197 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-10-16 10:14:49,372 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:14:49,373 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-10-16 10:14:49,374 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:14:49,374 INFO L85 PathProgramCache]: Analyzing trace with hash -189355626, now seen corresponding path program 2 times [2022-10-16 10:14:49,374 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:14:49,375 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1420119153] [2022-10-16 10:14:49,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:14:49,375 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:14:49,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:14:57,823 INFO L134 CoverageAnalysis]: Checked inductivity of 13219 backedges. 0 proven. 13207 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-10-16 10:14:57,824 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:14:57,824 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1420119153] [2022-10-16 10:14:57,824 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1420119153] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:14:57,824 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2034550551] [2022-10-16 10:14:57,824 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-16 10:14:57,824 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:14:57,825 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:14:57,826 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) [2022-10-16 10:14:57,839 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-10-16 10:14:58,075 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-10-16 10:14:58,075 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 10:14:58,080 INFO L263 TraceCheckSpWp]: Trace formula consists of 949 conjuncts, 96 conjunts are in the unsatisfiable core [2022-10-16 10:14:58,088 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:14:58,499 INFO L134 CoverageAnalysis]: Checked inductivity of 13219 backedges. 0 proven. 13207 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-10-16 10:14:58,499 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 10:15:10,176 INFO L134 CoverageAnalysis]: Checked inductivity of 13219 backedges. 0 proven. 13207 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-10-16 10:15:10,177 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2034550551] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 10:15:10,177 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 10:15:10,177 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [97, 97, 97] total 193 [2022-10-16 10:15:10,177 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1904211558] [2022-10-16 10:15:10,177 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 10:15:10,179 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 193 states [2022-10-16 10:15:10,179 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:15:10,185 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 193 interpolants. [2022-10-16 10:15:10,199 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18528, Invalid=18528, Unknown=0, NotChecked=0, Total=37056 [2022-10-16 10:15:10,200 INFO L87 Difference]: Start difference. First operand 309 states and 311 transitions. Second operand has 193 states, 193 states have (on average 3.0414507772020727) internal successors, (587), 193 states have internal predecessors, (587), 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) [2022-10-16 10:15:11,627 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:15:11,627 INFO L93 Difference]: Finished difference Result 621 states and 720 transitions. [2022-10-16 10:15:11,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 192 states. [2022-10-16 10:15:11,628 INFO L78 Accepts]: Start accepts. Automaton has has 193 states, 193 states have (on average 3.0414507772020727) internal successors, (587), 193 states have internal predecessors, (587), 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 308 [2022-10-16 10:15:11,629 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:15:11,631 INFO L225 Difference]: With dead ends: 621 [2022-10-16 10:15:11,631 INFO L226 Difference]: Without dead ends: 597 [2022-10-16 10:15:11,636 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 711 GetRequests, 520 SyntacticMatches, 0 SemanticMatches, 191 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 376 ImplicationChecksByTransitivity, 14.6s TimeCoverageRelationStatistics Valid=18528, Invalid=18528, Unknown=0, NotChecked=0, Total=37056 [2022-10-16 10:15:11,637 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 391 mSDsluCounter, 59 mSDsCounter, 0 mSdLazyCounter, 604 mSolverCounterSat, 103 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 391 SdHoareTripleChecker+Valid, 74 SdHoareTripleChecker+Invalid, 707 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 103 IncrementalHoareTripleChecker+Valid, 604 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-10-16 10:15:11,637 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [391 Valid, 74 Invalid, 707 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [103 Valid, 604 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-10-16 10:15:11,638 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 597 states. [2022-10-16 10:15:11,663 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 597 to 597. [2022-10-16 10:15:11,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 597 states, 596 states have (on average 1.00503355704698) internal successors, (599), 596 states have internal predecessors, (599), 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) [2022-10-16 10:15:11,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 597 states to 597 states and 599 transitions. [2022-10-16 10:15:11,666 INFO L78 Accepts]: Start accepts. Automaton has 597 states and 599 transitions. Word has length 308 [2022-10-16 10:15:11,667 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:15:11,667 INFO L495 AbstractCegarLoop]: Abstraction has 597 states and 599 transitions. [2022-10-16 10:15:11,668 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 193 states, 193 states have (on average 3.0414507772020727) internal successors, (587), 193 states have internal predecessors, (587), 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) [2022-10-16 10:15:11,668 INFO L276 IsEmpty]: Start isEmpty. Operand 597 states and 599 transitions. [2022-10-16 10:15:11,681 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 597 [2022-10-16 10:15:11,682 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:15:11,682 INFO L195 NwaCegarLoop]: trace histogram [190, 190, 190, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:15:11,723 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-10-16 10:15:11,883 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2022-10-16 10:15:11,884 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-10-16 10:15:11,885 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:15:11,885 INFO L85 PathProgramCache]: Analyzing trace with hash -525064298, now seen corresponding path program 3 times [2022-10-16 10:15:11,886 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:15:11,886 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [906468609] [2022-10-16 10:15:11,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:15:11,886 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:15:12,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:15:41,799 INFO L134 CoverageAnalysis]: Checked inductivity of 54067 backedges. 0 proven. 54055 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-10-16 10:15:41,800 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:15:41,800 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [906468609] [2022-10-16 10:15:41,800 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [906468609] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:15:41,800 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [659919731] [2022-10-16 10:15:41,800 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-10-16 10:15:41,800 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:15:41,801 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:15:41,808 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) [2022-10-16 10:15:41,825 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-10-16 10:15:42,027 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-10-16 10:15:42,028 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 10:15:42,030 INFO L263 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 4 conjunts are in the unsatisfiable core [2022-10-16 10:15:42,038 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:15:42,270 INFO L134 CoverageAnalysis]: Checked inductivity of 54067 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 54061 trivial. 0 not checked. [2022-10-16 10:15:42,271 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 10:15:42,271 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [659919731] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 10:15:42,271 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 10:15:42,271 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [193] total 195 [2022-10-16 10:15:42,272 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [236643074] [2022-10-16 10:15:42,272 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 10:15:42,272 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 10:15:42,273 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:15:42,273 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 10:15:42,278 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18532, Invalid=19298, Unknown=0, NotChecked=0, Total=37830 [2022-10-16 10:15:42,278 INFO L87 Difference]: Start difference. First operand 597 states and 599 transitions. Second operand has 4 states, 3 states have (on average 8.333333333333334) internal successors, (25), 4 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) [2022-10-16 10:15:42,391 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:15:42,391 INFO L93 Difference]: Finished difference Result 597 states and 599 transitions. [2022-10-16 10:15:42,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 10:15:42,392 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), 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 596 [2022-10-16 10:15:42,393 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:15:42,393 INFO L225 Difference]: With dead ends: 597 [2022-10-16 10:15:42,393 INFO L226 Difference]: Without dead ends: 0 [2022-10-16 10:15:42,401 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 789 GetRequests, 595 SyntacticMatches, 0 SemanticMatches, 194 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 380 ImplicationChecksByTransitivity, 15.2s TimeCoverageRelationStatistics Valid=18536, Invalid=19684, Unknown=0, NotChecked=0, Total=38220 [2022-10-16 10:15:42,402 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 2 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 40 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 10:15:42,402 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 40 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 10:15:42,403 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-10-16 10:15:42,403 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-10-16 10:15:42,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:15:42,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-10-16 10:15:42,403 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 596 [2022-10-16 10:15:42,403 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:15:42,404 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-10-16 10:15:42,404 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), 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) [2022-10-16 10:15:42,404 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-10-16 10:15:42,404 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-10-16 10:15:42,407 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 6 remaining) [2022-10-16 10:15:42,408 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 6 remaining) [2022-10-16 10:15:42,408 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 6 remaining) [2022-10-16 10:15:42,408 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 6 remaining) [2022-10-16 10:15:42,408 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 6 remaining) [2022-10-16 10:15:42,408 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 6 remaining) [2022-10-16 10:15:42,440 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-10-16 10:15:42,622 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2022-10-16 10:15:42,626 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-10-16 10:15:43,625 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 22) no Hoare annotation was computed. [2022-10-16 10:15:43,626 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-10-16 10:15:43,626 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 20) no Hoare annotation was computed. [2022-10-16 10:15:43,626 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-10-16 10:15:43,626 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW(line 26) no Hoare annotation was computed. [2022-10-16 10:15:43,626 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-10-16 10:15:43,626 INFO L899 garLoopResultBuilder]: For program point L20(line 20) no Hoare annotation was computed. [2022-10-16 10:15:43,626 INFO L899 garLoopResultBuilder]: For program point L20-1(line 20) no Hoare annotation was computed. [2022-10-16 10:15:43,627 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 20) no Hoare annotation was computed. [2022-10-16 10:15:43,627 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-10-16 10:15:43,627 INFO L902 garLoopResultBuilder]: At program point L29(lines 14 30) the Hoare annotation is: true [2022-10-16 10:15:43,627 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW(line 26) no Hoare annotation was computed. [2022-10-16 10:15:43,628 INFO L899 garLoopResultBuilder]: For program point L13(line 13) no Hoare annotation was computed. [2022-10-16 10:15:43,628 INFO L899 garLoopResultBuilder]: For program point L13-1(line 13) no Hoare annotation was computed. [2022-10-16 10:15:43,628 INFO L899 garLoopResultBuilder]: For program point L13-3(line 13) no Hoare annotation was computed. [2022-10-16 10:15:43,629 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 22) no Hoare annotation was computed. [2022-10-16 10:15:43,629 INFO L899 garLoopResultBuilder]: For program point L26-2(lines 26 28) no Hoare annotation was computed. [2022-10-16 10:15:43,629 INFO L899 garLoopResultBuilder]: For program point L26-3(line 26) no Hoare annotation was computed. [2022-10-16 10:15:43,629 INFO L899 garLoopResultBuilder]: For program point L26-4(line 26) no Hoare annotation was computed. [2022-10-16 10:15:43,629 INFO L895 garLoopResultBuilder]: At program point L26-5(lines 26 28) the Hoare annotation is: (and (<= 1 |ULTIMATE.start_main_~i~0#1|) (<= 0 (+ |ULTIMATE.start_main_~x~0#1| 2147483648))) [2022-10-16 10:15:43,630 INFO L899 garLoopResultBuilder]: For program point L22-2(lines 22 24) no Hoare annotation was computed. [2022-10-16 10:15:43,630 INFO L899 garLoopResultBuilder]: For program point L26-6(lines 26 28) no Hoare annotation was computed. [2022-10-16 10:15:43,630 INFO L899 garLoopResultBuilder]: For program point L22-3(line 22) no Hoare annotation was computed. [2022-10-16 10:15:43,630 INFO L899 garLoopResultBuilder]: For program point L22-4(line 22) no Hoare annotation was computed. [2022-10-16 10:15:43,630 INFO L895 garLoopResultBuilder]: At program point L22-5(lines 22 24) the Hoare annotation is: (<= 0 (+ |ULTIMATE.start_main_~i~0#1| 2147483648)) [2022-10-16 10:15:43,630 INFO L895 garLoopResultBuilder]: At program point L18-2(lines 18 21) the Hoare annotation is: (or (= |ULTIMATE.start_main_~i~0#1| 0) (<= 1 |ULTIMATE.start_main_~i~0#1|)) [2022-10-16 10:15:43,630 INFO L899 garLoopResultBuilder]: For program point L22-6(lines 22 24) no Hoare annotation was computed. [2022-10-16 10:15:43,631 INFO L899 garLoopResultBuilder]: For program point L18-3(lines 18 21) no Hoare annotation was computed. [2022-10-16 10:15:43,634 INFO L444 BasicCegarLoop]: Path program histogram: [3, 3, 2, 2, 1, 1, 1, 1, 1] [2022-10-16 10:15:43,638 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-10-16 10:15:43,661 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.10 10:15:43 BoogieIcfgContainer [2022-10-16 10:15:43,661 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-10-16 10:15:43,663 INFO L158 Benchmark]: Toolchain (without parser) took 70441.37ms. Allocated memory was 151.0MB in the beginning and 1.0GB in the end (delta: 874.5MB). Free memory was 125.0MB in the beginning and 771.6MB in the end (delta: -646.6MB). Peak memory consumption was 628.6MB. Max. memory is 8.0GB. [2022-10-16 10:15:43,663 INFO L158 Benchmark]: CDTParser took 0.24ms. Allocated memory is still 151.0MB. Free memory is still 121.1MB. There was no memory consumed. Max. memory is 8.0GB. [2022-10-16 10:15:43,664 INFO L158 Benchmark]: CACSL2BoogieTranslator took 248.41ms. Allocated memory is still 151.0MB. Free memory was 124.8MB in the beginning and 115.1MB in the end (delta: 9.7MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. [2022-10-16 10:15:43,664 INFO L158 Benchmark]: Boogie Procedure Inliner took 38.56ms. Allocated memory is still 151.0MB. Free memory was 115.0MB in the beginning and 113.5MB in the end (delta: 1.4MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-10-16 10:15:43,665 INFO L158 Benchmark]: Boogie Preprocessor took 28.21ms. Allocated memory is still 151.0MB. Free memory was 113.5MB in the beginning and 112.3MB in the end (delta: 1.2MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-10-16 10:15:43,665 INFO L158 Benchmark]: RCFGBuilder took 558.15ms. Allocated memory is still 151.0MB. Free memory was 112.2MB in the beginning and 101.3MB in the end (delta: 10.9MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. [2022-10-16 10:15:43,666 INFO L158 Benchmark]: TraceAbstraction took 69554.92ms. Allocated memory was 151.0MB in the beginning and 1.0GB in the end (delta: 874.5MB). Free memory was 100.7MB in the beginning and 771.6MB in the end (delta: -671.0MB). Peak memory consumption was 604.5MB. Max. memory is 8.0GB. [2022-10-16 10:15:43,674 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24ms. Allocated memory is still 151.0MB. Free memory is still 121.1MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 248.41ms. Allocated memory is still 151.0MB. Free memory was 124.8MB in the beginning and 115.1MB in the end (delta: 9.7MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 38.56ms. Allocated memory is still 151.0MB. Free memory was 115.0MB in the beginning and 113.5MB in the end (delta: 1.4MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * Boogie Preprocessor took 28.21ms. Allocated memory is still 151.0MB. Free memory was 113.5MB in the beginning and 112.3MB in the end (delta: 1.2MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 558.15ms. Allocated memory is still 151.0MB. Free memory was 112.2MB in the beginning and 101.3MB in the end (delta: 10.9MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. * TraceAbstraction took 69554.92ms. Allocated memory was 151.0MB in the beginning and 1.0GB in the end (delta: 874.5MB). Free memory was 100.7MB in the beginning and 771.6MB in the end (delta: -671.0MB). Peak memory consumption was 604.5MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 20]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 20]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 22]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 22]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 26]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 26]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 28 locations, 6 error locations. Started 1 CEGAR loops. OverallTime: 69.4s, OverallIterations: 15, TraceHistogramMax: 190, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 3.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 1.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 971 SdHoareTripleChecker+Valid, 1.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 971 mSDsluCounter, 720 SdHoareTripleChecker+Invalid, 1.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 475 mSDsCounter, 258 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1408 IncrementalHoareTripleChecker+Invalid, 1666 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 258 mSolverCounterUnsat, 245 mSDtfsCounter, 1408 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2346 GetRequests, 1735 SyntacticMatches, 0 SemanticMatches, 611 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1132 ImplicationChecksByTransitivity, 35.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=597occurred in iteration=14, InterpolantAutomatonStates: 413, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 15 MinimizatonAttempts, 23 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 4 LocationsWithAnnotation, 4 PreInvPairs, 200 NumberOfFragments, 22 HoareAnnotationTreeSize, 4 FomulaSimplifications, 2593 FormulaSimplificationTreeSizeReduction, 1.0s HoareSimplificationTime, 4 FomulaSimplificationsInter, 8 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 1.1s SatisfiabilityAnalysisTime, 60.4s InterpolantComputationTime, 2995 NumberOfCodeBlocks, 2361 NumberOfCodeBlocksAsserted, 28 NumberOfCheckSat, 3594 ConstructedInterpolants, 0 QuantifiedInterpolants, 8066 SizeOfPredicates, 2 NumberOfNonLiveVariables, 2316 ConjunctsInSsa, 200 ConjunctsInUnsatCore, 30 InterpolantComputations, 9 PerfectInterpolantSequences, 61986/167768 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 6 specifications checked. All of them hold - InvariantResult [Line: 22]: Loop Invariant Derived loop invariant: 0 <= i + 2147483648 - InvariantResult [Line: 18]: Loop Invariant Derived loop invariant: i == 0 || 1 <= i - InvariantResult [Line: 26]: Loop Invariant Derived loop invariant: 1 <= i && 0 <= x + 2147483648 - InvariantResult [Line: 14]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2022-10-16 10:15:43,751 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...