/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/data_structures_set_multi_proc_trivial_ground.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-05d3305-m [2022-10-15 20:09:47,186 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-15 20:09:47,189 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-15 20:09:47,236 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-15 20:09:47,237 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-15 20:09:47,238 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-15 20:09:47,241 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-15 20:09:47,243 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-15 20:09:47,246 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-15 20:09:47,247 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-15 20:09:47,249 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-15 20:09:47,250 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-15 20:09:47,251 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-15 20:09:47,253 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-15 20:09:47,254 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-15 20:09:47,256 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-15 20:09:47,257 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-15 20:09:47,259 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-15 20:09:47,261 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-15 20:09:47,264 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-15 20:09:47,266 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-15 20:09:47,268 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-15 20:09:47,270 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-15 20:09:47,271 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-15 20:09:47,276 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-10-15 20:09:47,284 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-15 20:09:47,286 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-15 20:09:47,287 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-15 20:09:47,292 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-15 20:09:47,293 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-15 20:09:47,294 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-15 20:09:47,296 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-15 20:09:47,296 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-15 20:09:47,296 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-15 20:09:47,301 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-15 20:09:47,302 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-15 20:09:47,304 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Overflow-32bit-Automizer_Default.epf [2022-10-15 20:09:47,366 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-15 20:09:47,367 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-15 20:09:47,367 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-15 20:09:47,368 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-15 20:09:47,370 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-15 20:09:47,370 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-15 20:09:47,373 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-15 20:09:47,373 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-15 20:09:47,374 INFO L138 SettingsManager]: * Use SBE=true [2022-10-15 20:09:47,374 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-15 20:09:47,375 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-15 20:09:47,375 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-15 20:09:47,375 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-15 20:09:47,376 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-15 20:09:47,376 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-15 20:09:47,376 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-15 20:09:47,376 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-15 20:09:47,376 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-15 20:09:47,377 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-10-15 20:09:47,377 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-15 20:09:47,377 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-15 20:09:47,377 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-15 20:09:47,377 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-15 20:09:47,378 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-15 20:09:47,378 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-15 20:09:47,378 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-15 20:09:47,378 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-15 20:09:47,378 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-15 20:09:47,379 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-15 20:09:47,379 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-15 20:09:47,379 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-15 20:09:47,379 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-15 20:09:47,380 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-15 20:09:47,380 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-10-15 20:09:47,772 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-15 20:09:47,800 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-15 20:09:47,803 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-15 20:09:47,804 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-15 20:09:47,805 INFO L275 PluginConnector]: CDTParser initialized [2022-10-15 20:09:47,806 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/array-examples/data_structures_set_multi_proc_trivial_ground.i [2022-10-15 20:09:47,901 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c15d20fd9/f31088af5d30494b9f6221b3a732e4fc/FLAGce95fcb83 [2022-10-15 20:09:48,685 INFO L306 CDTParser]: Found 1 translation units. [2022-10-15 20:09:48,687 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-examples/data_structures_set_multi_proc_trivial_ground.i [2022-10-15 20:09:48,699 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c15d20fd9/f31088af5d30494b9f6221b3a732e4fc/FLAGce95fcb83 [2022-10-15 20:09:48,995 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c15d20fd9/f31088af5d30494b9f6221b3a732e4fc [2022-10-15 20:09:48,998 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-15 20:09:49,005 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-10-15 20:09:49,011 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-15 20:09:49,012 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-15 20:09:49,017 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-15 20:09:49,019 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 08:09:48" (1/1) ... [2022-10-15 20:09:49,021 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4b8d3d34 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:09:49, skipping insertion in model container [2022-10-15 20:09:49,021 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 08:09:48" (1/1) ... [2022-10-15 20:09:49,031 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-15 20:09:49,057 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-15 20:09:49,230 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/data_structures_set_multi_proc_trivial_ground.i[838,851] [2022-10-15 20:09:49,281 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-15 20:09:49,291 INFO L203 MainTranslator]: Completed pre-run [2022-10-15 20:09:49,306 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/data_structures_set_multi_proc_trivial_ground.i[838,851] [2022-10-15 20:09:49,323 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-15 20:09:49,341 INFO L208 MainTranslator]: Completed translation [2022-10-15 20:09:49,342 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:09:49 WrapperNode [2022-10-15 20:09:49,342 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-15 20:09:49,344 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-15 20:09:49,345 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-15 20:09:49,345 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-15 20:09:49,359 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:09:49" (1/1) ... [2022-10-15 20:09:49,386 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:09:49" (1/1) ... [2022-10-15 20:09:49,447 INFO L138 Inliner]: procedures = 18, calls = 29, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 186 [2022-10-15 20:09:49,450 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-15 20:09:49,452 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-15 20:09:49,452 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-15 20:09:49,452 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-15 20:09:49,464 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:09:49" (1/1) ... [2022-10-15 20:09:49,465 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:09:49" (1/1) ... [2022-10-15 20:09:49,484 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:09:49" (1/1) ... [2022-10-15 20:09:49,484 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:09:49" (1/1) ... [2022-10-15 20:09:49,505 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:09:49" (1/1) ... [2022-10-15 20:09:49,521 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:09:49" (1/1) ... [2022-10-15 20:09:49,527 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:09:49" (1/1) ... [2022-10-15 20:09:49,533 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:09:49" (1/1) ... [2022-10-15 20:09:49,541 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-15 20:09:49,545 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-15 20:09:49,545 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-15 20:09:49,545 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-15 20:09:49,546 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:09:49" (1/1) ... [2022-10-15 20:09:49,557 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-15 20:09:49,577 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 20:09:49,597 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-10-15 20:09:49,610 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-10-15 20:09:49,684 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-15 20:09:49,685 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-15 20:09:49,685 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-10-15 20:09:49,685 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-10-15 20:09:49,685 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-15 20:09:49,686 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-15 20:09:49,686 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-10-15 20:09:49,686 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-10-15 20:09:49,686 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-10-15 20:09:49,686 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-10-15 20:09:49,783 INFO L235 CfgBuilder]: Building ICFG [2022-10-15 20:09:49,786 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-15 20:09:50,209 INFO L276 CfgBuilder]: Performing block encoding [2022-10-15 20:09:50,234 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-15 20:09:50,235 INFO L300 CfgBuilder]: Removed 10 assume(true) statements. [2022-10-15 20:09:50,241 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 08:09:50 BoogieIcfgContainer [2022-10-15 20:09:50,242 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-15 20:09:50,246 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-15 20:09:50,247 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-15 20:09:50,252 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-15 20:09:50,252 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 08:09:48" (1/3) ... [2022-10-15 20:09:50,253 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e3e28d3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 08:09:50, skipping insertion in model container [2022-10-15 20:09:50,254 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:09:49" (2/3) ... [2022-10-15 20:09:50,255 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e3e28d3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 08:09:50, skipping insertion in model container [2022-10-15 20:09:50,255 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 08:09:50" (3/3) ... [2022-10-15 20:09:50,257 INFO L112 eAbstractionObserver]: Analyzing ICFG data_structures_set_multi_proc_trivial_ground.i [2022-10-15 20:09:50,287 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-15 20:09:50,288 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 28 error locations. [2022-10-15 20:09:50,391 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-15 20:09:50,402 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;@2a1aac67, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-15 20:09:50,402 INFO L358 AbstractCegarLoop]: Starting to check reachability of 28 error locations. [2022-10-15 20:09:50,410 INFO L276 IsEmpty]: Start isEmpty. Operand has 103 states, 70 states have (on average 1.7285714285714286) internal successors, (121), 98 states have internal predecessors, (121), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-10-15 20:09:50,418 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-10-15 20:09:50,418 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 20:09:50,419 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-10-15 20:09:50,420 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2022-10-15 20:09:50,427 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 20:09:50,428 INFO L85 PathProgramCache]: Analyzing trace with hash 28698728, now seen corresponding path program 1 times [2022-10-15 20:09:50,440 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 20:09:50,441 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [406131263] [2022-10-15 20:09:50,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 20:09:50,442 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 20:09:50,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 20:09:50,733 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 20:09:50,734 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 20:09:50,735 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [406131263] [2022-10-15 20:09:50,738 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [406131263] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 20:09:50,738 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 20:09:50,739 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 20:09:50,741 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1129648602] [2022-10-15 20:09:50,747 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 20:09:50,766 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-15 20:09:50,766 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 20:09:50,825 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-15 20:09:50,827 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-15 20:09:50,833 INFO L87 Difference]: Start difference. First operand has 103 states, 70 states have (on average 1.7285714285714286) internal successors, (121), 98 states have internal predecessors, (121), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 20:09:51,118 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 20:09:51,118 INFO L93 Difference]: Finished difference Result 287 states and 369 transitions. [2022-10-15 20:09:51,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-15 20:09:51,122 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2022-10-15 20:09:51,122 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 20:09:51,134 INFO L225 Difference]: With dead ends: 287 [2022-10-15 20:09:51,134 INFO L226 Difference]: Without dead ends: 181 [2022-10-15 20:09:51,139 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-15 20:09:51,144 INFO L413 NwaCegarLoop]: 103 mSDtfsCounter, 88 mSDsluCounter, 181 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 91 SdHoareTripleChecker+Valid, 284 SdHoareTripleChecker+Invalid, 91 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 78 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-15 20:09:51,146 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [91 Valid, 284 Invalid, 91 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 78 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-15 20:09:51,168 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 181 states. [2022-10-15 20:09:51,217 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 181 to 111. [2022-10-15 20:09:51,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 111 states, 79 states have (on average 1.518987341772152) internal successors, (120), 106 states have internal predecessors, (120), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-10-15 20:09:51,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 126 transitions. [2022-10-15 20:09:51,233 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 126 transitions. Word has length 5 [2022-10-15 20:09:51,233 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 20:09:51,233 INFO L495 AbstractCegarLoop]: Abstraction has 111 states and 126 transitions. [2022-10-15 20:09:51,234 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 20:09:51,234 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 126 transitions. [2022-10-15 20:09:51,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-10-15 20:09:51,236 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 20:09:51,237 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1] [2022-10-15 20:09:51,237 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-15 20:09:51,237 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2022-10-15 20:09:51,239 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 20:09:51,239 INFO L85 PathProgramCache]: Analyzing trace with hash -363792156, now seen corresponding path program 1 times [2022-10-15 20:09:51,240 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 20:09:51,240 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1964838495] [2022-10-15 20:09:51,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 20:09:51,240 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 20:09:51,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 20:09:51,376 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-15 20:09:51,376 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 20:09:51,377 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1964838495] [2022-10-15 20:09:51,377 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1964838495] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 20:09:51,377 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 20:09:51,378 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 20:09:51,378 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1428754575] [2022-10-15 20:09:51,378 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 20:09:51,380 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-15 20:09:51,380 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 20:09:51,381 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-15 20:09:51,381 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-15 20:09:51,382 INFO L87 Difference]: Start difference. First operand 111 states and 126 transitions. Second operand has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 20:09:51,554 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 20:09:51,554 INFO L93 Difference]: Finished difference Result 181 states and 207 transitions. [2022-10-15 20:09:51,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-15 20:09:51,556 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2022-10-15 20:09:51,556 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 20:09:51,559 INFO L225 Difference]: With dead ends: 181 [2022-10-15 20:09:51,559 INFO L226 Difference]: Without dead ends: 180 [2022-10-15 20:09:51,560 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-15 20:09:51,562 INFO L413 NwaCegarLoop]: 97 mSDtfsCounter, 86 mSDsluCounter, 170 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 89 SdHoareTripleChecker+Valid, 267 SdHoareTripleChecker+Invalid, 76 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 20:09:51,563 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [89 Valid, 267 Invalid, 76 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 20:09:51,564 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 180 states. [2022-10-15 20:09:51,578 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 180 to 110. [2022-10-15 20:09:51,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 110 states, 79 states have (on average 1.5063291139240507) internal successors, (119), 105 states have internal predecessors, (119), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-10-15 20:09:51,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 125 transitions. [2022-10-15 20:09:51,581 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 125 transitions. Word has length 9 [2022-10-15 20:09:51,581 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 20:09:51,582 INFO L495 AbstractCegarLoop]: Abstraction has 110 states and 125 transitions. [2022-10-15 20:09:51,582 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 20:09:51,582 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 125 transitions. [2022-10-15 20:09:51,583 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-10-15 20:09:51,583 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 20:09:51,583 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1] [2022-10-15 20:09:51,584 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-15 20:09:51,584 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2022-10-15 20:09:51,585 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 20:09:51,585 INFO L85 PathProgramCache]: Analyzing trace with hash 1607345098, now seen corresponding path program 1 times [2022-10-15 20:09:51,585 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 20:09:51,586 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [149631421] [2022-10-15 20:09:51,586 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 20:09:51,586 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 20:09:51,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 20:09:51,755 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 20:09:51,755 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 20:09:51,756 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [149631421] [2022-10-15 20:09:51,756 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [149631421] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 20:09:51,757 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [852958312] [2022-10-15 20:09:51,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 20:09:51,758 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 20:09:51,758 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 20:09:51,771 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-15 20:09:51,796 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-10-15 20:09:51,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 20:09:51,865 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-15 20:09:51,873 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 20:09:51,976 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 20:09:51,977 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-15 20:09:51,977 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [852958312] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 20:09:51,977 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-15 20:09:51,978 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2022-10-15 20:09:51,978 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [652870063] [2022-10-15 20:09:51,978 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 20:09:51,979 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-15 20:09:51,979 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 20:09:51,980 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-15 20:09:51,981 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-10-15 20:09:51,981 INFO L87 Difference]: Start difference. First operand 110 states and 125 transitions. Second operand has 6 states, 5 states have (on average 2.0) internal successors, (10), 6 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 20:09:52,241 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 20:09:52,241 INFO L93 Difference]: Finished difference Result 180 states and 206 transitions. [2022-10-15 20:09:52,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-15 20:09:52,243 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.0) internal successors, (10), 6 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2022-10-15 20:09:52,243 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 20:09:52,245 INFO L225 Difference]: With dead ends: 180 [2022-10-15 20:09:52,245 INFO L226 Difference]: Without dead ends: 179 [2022-10-15 20:09:52,246 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-10-15 20:09:52,249 INFO L413 NwaCegarLoop]: 102 mSDtfsCounter, 86 mSDsluCounter, 362 mSDsCounter, 0 mSdLazyCounter, 130 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 89 SdHoareTripleChecker+Valid, 464 SdHoareTripleChecker+Invalid, 139 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 130 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-15 20:09:52,250 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [89 Valid, 464 Invalid, 139 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 130 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-15 20:09:52,252 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 179 states. [2022-10-15 20:09:52,267 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 179 to 106. [2022-10-15 20:09:52,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 106 states, 76 states have (on average 1.513157894736842) internal successors, (115), 101 states have internal predecessors, (115), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-10-15 20:09:52,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 121 transitions. [2022-10-15 20:09:52,271 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 121 transitions. Word has length 10 [2022-10-15 20:09:52,271 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 20:09:52,272 INFO L495 AbstractCegarLoop]: Abstraction has 106 states and 121 transitions. [2022-10-15 20:09:52,272 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.0) internal successors, (10), 6 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 20:09:52,272 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 121 transitions. [2022-10-15 20:09:52,273 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-10-15 20:09:52,273 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 20:09:52,274 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 20:09:52,330 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-10-15 20:09:52,487 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 20:09:52,488 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2022-10-15 20:09:52,489 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 20:09:52,489 INFO L85 PathProgramCache]: Analyzing trace with hash -1706052304, now seen corresponding path program 1 times [2022-10-15 20:09:52,490 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 20:09:52,490 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1597143878] [2022-10-15 20:09:52,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 20:09:52,491 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 20:09:52,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 20:09:52,632 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 20:09:52,633 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 20:09:52,633 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1597143878] [2022-10-15 20:09:52,634 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1597143878] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 20:09:52,634 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [984893326] [2022-10-15 20:09:52,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 20:09:52,635 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 20:09:52,635 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 20:09:52,637 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-15 20:09:52,657 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-10-15 20:09:52,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 20:09:52,711 INFO L263 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 4 conjunts are in the unsatisfiable core [2022-10-15 20:09:52,713 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 20:09:52,787 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 20:09:52,788 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-15 20:09:52,836 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 20:09:52,837 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [984893326] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-15 20:09:52,837 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-15 20:09:52,838 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2022-10-15 20:09:52,838 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [750900772] [2022-10-15 20:09:52,838 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-15 20:09:52,839 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-10-15 20:09:52,839 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 20:09:52,840 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-10-15 20:09:52,840 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-10-15 20:09:52,841 INFO L87 Difference]: Start difference. First operand 106 states and 121 transitions. Second operand has 10 states, 10 states have (on average 2.4) internal successors, (24), 10 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) [2022-10-15 20:09:53,044 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 20:09:53,045 INFO L93 Difference]: Finished difference Result 283 states and 325 transitions. [2022-10-15 20:09:53,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-10-15 20:09:53,046 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 2.4) internal successors, (24), 10 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 13 [2022-10-15 20:09:53,046 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 20:09:53,048 INFO L225 Difference]: With dead ends: 283 [2022-10-15 20:09:53,049 INFO L226 Difference]: Without dead ends: 184 [2022-10-15 20:09:53,050 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2022-10-15 20:09:53,052 INFO L413 NwaCegarLoop]: 91 mSDtfsCounter, 343 mSDsluCounter, 166 mSDsCounter, 0 mSdLazyCounter, 83 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 346 SdHoareTripleChecker+Valid, 257 SdHoareTripleChecker+Invalid, 125 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 83 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 20:09:53,053 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [346 Valid, 257 Invalid, 125 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 83 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 20:09:53,055 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 184 states. [2022-10-15 20:09:53,067 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 184 to 114. [2022-10-15 20:09:53,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 114 states, 84 states have (on average 1.4642857142857142) internal successors, (123), 109 states have internal predecessors, (123), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-10-15 20:09:53,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 129 transitions. [2022-10-15 20:09:53,071 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 129 transitions. Word has length 13 [2022-10-15 20:09:53,071 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 20:09:53,072 INFO L495 AbstractCegarLoop]: Abstraction has 114 states and 129 transitions. [2022-10-15 20:09:53,072 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 2.4) internal successors, (24), 10 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) [2022-10-15 20:09:53,072 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 129 transitions. [2022-10-15 20:09:53,073 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-10-15 20:09:53,073 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 20:09:53,074 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 20:09:53,122 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-10-15 20:09:53,288 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3 [2022-10-15 20:09:53,289 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2022-10-15 20:09:53,290 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 20:09:53,290 INFO L85 PathProgramCache]: Analyzing trace with hash 1610268712, now seen corresponding path program 2 times [2022-10-15 20:09:53,290 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 20:09:53,290 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1137831883] [2022-10-15 20:09:53,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 20:09:53,292 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 20:09:53,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 20:09:53,442 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-10-15 20:09:53,443 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 20:09:53,443 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1137831883] [2022-10-15 20:09:53,444 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1137831883] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 20:09:53,444 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 20:09:53,444 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 20:09:53,444 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1324250314] [2022-10-15 20:09:53,445 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 20:09:53,445 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-15 20:09:53,446 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 20:09:53,446 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-15 20:09:53,447 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-15 20:09:53,447 INFO L87 Difference]: Start difference. First operand 114 states and 129 transitions. Second operand has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 20:09:53,503 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 20:09:53,503 INFO L93 Difference]: Finished difference Result 233 states and 266 transitions. [2022-10-15 20:09:53,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-15 20:09:53,504 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 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 21 [2022-10-15 20:09:53,505 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 20:09:53,506 INFO L225 Difference]: With dead ends: 233 [2022-10-15 20:09:53,506 INFO L226 Difference]: Without dead ends: 161 [2022-10-15 20:09:53,507 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-15 20:09:53,509 INFO L413 NwaCegarLoop]: 103 mSDtfsCounter, 46 mSDsluCounter, 197 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 300 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 20:09:53,510 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 300 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 20:09:53,511 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 161 states. [2022-10-15 20:09:53,522 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 161 to 119. [2022-10-15 20:09:53,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 119 states, 89 states have (on average 1.4382022471910112) internal successors, (128), 114 states have internal predecessors, (128), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-10-15 20:09:53,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 134 transitions. [2022-10-15 20:09:53,525 INFO L78 Accepts]: Start accepts. Automaton has 119 states and 134 transitions. Word has length 21 [2022-10-15 20:09:53,525 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 20:09:53,526 INFO L495 AbstractCegarLoop]: Abstraction has 119 states and 134 transitions. [2022-10-15 20:09:53,526 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 20:09:53,527 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 134 transitions. [2022-10-15 20:09:53,527 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-10-15 20:09:53,528 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 20:09:53,528 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 20:09:53,528 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-10-15 20:09:53,529 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2022-10-15 20:09:53,529 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 20:09:53,530 INFO L85 PathProgramCache]: Analyzing trace with hash -1592828572, now seen corresponding path program 1 times [2022-10-15 20:09:53,530 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 20:09:53,530 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [310587045] [2022-10-15 20:09:53,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 20:09:53,531 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 20:09:53,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 20:09:53,688 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-10-15 20:09:53,689 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 20:09:53,689 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [310587045] [2022-10-15 20:09:53,689 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [310587045] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 20:09:53,690 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 20:09:53,690 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-15 20:09:53,690 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [295624323] [2022-10-15 20:09:53,691 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 20:09:53,692 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-15 20:09:53,693 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 20:09:53,693 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-15 20:09:53,694 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-10-15 20:09:53,695 INFO L87 Difference]: Start difference. First operand 119 states and 134 transitions. Second operand has 4 states, 4 states have (on average 3.5) 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) [2022-10-15 20:09:53,750 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 20:09:53,751 INFO L93 Difference]: Finished difference Result 226 states and 256 transitions. [2022-10-15 20:09:53,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-15 20:09:53,752 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.5) 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 22 [2022-10-15 20:09:53,752 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 20:09:53,753 INFO L225 Difference]: With dead ends: 226 [2022-10-15 20:09:53,753 INFO L226 Difference]: Without dead ends: 122 [2022-10-15 20:09:53,755 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-10-15 20:09:53,760 INFO L413 NwaCegarLoop]: 83 mSDtfsCounter, 76 mSDsluCounter, 63 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 76 SdHoareTripleChecker+Valid, 146 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 20:09:53,761 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [76 Valid, 146 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 20:09:53,764 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122 states. [2022-10-15 20:09:53,787 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122 to 112. [2022-10-15 20:09:53,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 112 states, 89 states have (on average 1.4157303370786516) internal successors, (126), 108 states have internal predecessors, (126), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-15 20:09:53,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 112 states and 130 transitions. [2022-10-15 20:09:53,790 INFO L78 Accepts]: Start accepts. Automaton has 112 states and 130 transitions. Word has length 22 [2022-10-15 20:09:53,791 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 20:09:53,791 INFO L495 AbstractCegarLoop]: Abstraction has 112 states and 130 transitions. [2022-10-15 20:09:53,791 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.5) 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) [2022-10-15 20:09:53,792 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 130 transitions. [2022-10-15 20:09:53,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-10-15 20:09:53,793 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 20:09:53,793 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 20:09:53,794 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-10-15 20:09:53,794 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2022-10-15 20:09:53,795 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 20:09:53,795 INFO L85 PathProgramCache]: Analyzing trace with hash 1727999780, now seen corresponding path program 1 times [2022-10-15 20:09:53,795 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 20:09:53,795 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [867052189] [2022-10-15 20:09:53,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 20:09:53,796 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 20:09:53,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 20:09:53,958 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-10-15 20:09:53,959 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 20:09:53,959 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [867052189] [2022-10-15 20:09:53,959 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [867052189] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 20:09:53,959 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 20:09:53,960 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 20:09:53,960 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [586465076] [2022-10-15 20:09:53,960 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 20:09:53,961 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-15 20:09:53,961 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 20:09:53,962 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-15 20:09:53,962 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-15 20:09:53,962 INFO L87 Difference]: Start difference. First operand 112 states and 130 transitions. Second operand has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 4 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 20:09:54,002 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 20:09:54,003 INFO L93 Difference]: Finished difference Result 113 states and 131 transitions. [2022-10-15 20:09:54,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-15 20:09:54,004 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 4 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-10-15 20:09:54,004 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 20:09:54,005 INFO L225 Difference]: With dead ends: 113 [2022-10-15 20:09:54,005 INFO L226 Difference]: Without dead ends: 112 [2022-10-15 20:09:54,006 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-15 20:09:54,007 INFO L413 NwaCegarLoop]: 80 mSDtfsCounter, 48 mSDsluCounter, 112 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 192 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 20:09:54,008 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [49 Valid, 192 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 20:09:54,009 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112 states. [2022-10-15 20:09:54,016 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112 to 111. [2022-10-15 20:09:54,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 111 states, 89 states have (on average 1.404494382022472) internal successors, (125), 107 states have internal predecessors, (125), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-15 20:09:54,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 129 transitions. [2022-10-15 20:09:54,018 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 129 transitions. Word has length 25 [2022-10-15 20:09:54,018 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 20:09:54,019 INFO L495 AbstractCegarLoop]: Abstraction has 111 states and 129 transitions. [2022-10-15 20:09:54,019 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 4 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 20:09:54,019 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 129 transitions. [2022-10-15 20:09:54,020 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-10-15 20:09:54,020 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 20:09:54,021 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 20:09:54,021 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-10-15 20:09:54,021 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2022-10-15 20:09:54,022 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 20:09:54,022 INFO L85 PathProgramCache]: Analyzing trace with hash 2028385732, now seen corresponding path program 1 times [2022-10-15 20:09:54,023 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 20:09:54,023 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1431770381] [2022-10-15 20:09:54,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 20:09:54,023 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 20:09:54,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 20:09:54,192 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-10-15 20:09:54,193 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 20:09:54,193 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1431770381] [2022-10-15 20:09:54,194 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1431770381] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 20:09:54,194 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [327712437] [2022-10-15 20:09:54,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 20:09:54,195 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 20:09:54,195 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 20:09:54,196 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-15 20:09:54,203 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-10-15 20:09:54,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 20:09:54,286 INFO L263 TraceCheckSpWp]: Trace formula consists of 118 conjuncts, 8 conjunts are in the unsatisfiable core [2022-10-15 20:09:54,290 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 20:09:54,352 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-10-15 20:09:54,352 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-15 20:09:54,463 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-10-15 20:09:54,463 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [327712437] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-15 20:09:54,463 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-15 20:09:54,464 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 18 [2022-10-15 20:09:54,464 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [456448245] [2022-10-15 20:09:54,464 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-15 20:09:54,465 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-10-15 20:09:54,465 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 20:09:54,466 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-10-15 20:09:54,467 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2022-10-15 20:09:54,467 INFO L87 Difference]: Start difference. First operand 111 states and 129 transitions. Second operand has 18 states, 18 states have (on average 2.3333333333333335) internal successors, (42), 18 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 20:09:54,692 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 20:09:54,692 INFO L93 Difference]: Finished difference Result 272 states and 319 transitions. [2022-10-15 20:09:54,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-10-15 20:09:54,693 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.3333333333333335) internal successors, (42), 18 states have internal predecessors, (42), 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 26 [2022-10-15 20:09:54,694 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 20:09:54,695 INFO L225 Difference]: With dead ends: 272 [2022-10-15 20:09:54,695 INFO L226 Difference]: Without dead ends: 176 [2022-10-15 20:09:54,697 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 107 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=171, Invalid=381, Unknown=0, NotChecked=0, Total=552 [2022-10-15 20:09:54,698 INFO L413 NwaCegarLoop]: 80 mSDtfsCounter, 234 mSDsluCounter, 265 mSDsCounter, 0 mSdLazyCounter, 126 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 236 SdHoareTripleChecker+Valid, 345 SdHoareTripleChecker+Invalid, 157 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 126 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 20:09:54,698 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [236 Valid, 345 Invalid, 157 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 126 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 20:09:54,699 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 176 states. [2022-10-15 20:09:54,729 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 176 to 127. [2022-10-15 20:09:54,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 127 states, 105 states have (on average 1.3428571428571427) internal successors, (141), 123 states have internal predecessors, (141), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-15 20:09:54,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 127 states and 145 transitions. [2022-10-15 20:09:54,732 INFO L78 Accepts]: Start accepts. Automaton has 127 states and 145 transitions. Word has length 26 [2022-10-15 20:09:54,732 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 20:09:54,732 INFO L495 AbstractCegarLoop]: Abstraction has 127 states and 145 transitions. [2022-10-15 20:09:54,732 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.3333333333333335) internal successors, (42), 18 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 20:09:54,733 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 145 transitions. [2022-10-15 20:09:54,740 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2022-10-15 20:09:54,740 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 20:09:54,740 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 20:09:54,782 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-10-15 20:09:54,955 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 20:09:54,956 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2022-10-15 20:09:54,957 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 20:09:54,957 INFO L85 PathProgramCache]: Analyzing trace with hash -2015150636, now seen corresponding path program 2 times [2022-10-15 20:09:54,958 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 20:09:54,958 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1772386299] [2022-10-15 20:09:54,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 20:09:54,959 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 20:09:54,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 20:09:55,346 INFO L134 CoverageAnalysis]: Checked inductivity of 95 backedges. 0 proven. 91 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-10-15 20:09:55,347 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 20:09:55,347 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1772386299] [2022-10-15 20:09:55,347 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1772386299] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 20:09:55,347 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1663666313] [2022-10-15 20:09:55,348 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-15 20:09:55,348 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 20:09:55,348 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 20:09:55,350 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-15 20:09:55,352 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-10-15 20:09:55,433 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-10-15 20:09:55,434 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-15 20:09:55,436 INFO L263 TraceCheckSpWp]: Trace formula consists of 170 conjuncts, 16 conjunts are in the unsatisfiable core [2022-10-15 20:09:55,440 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 20:09:55,565 INFO L134 CoverageAnalysis]: Checked inductivity of 95 backedges. 0 proven. 91 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-10-15 20:09:55,565 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-15 20:09:55,882 INFO L134 CoverageAnalysis]: Checked inductivity of 95 backedges. 0 proven. 91 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-10-15 20:09:55,883 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1663666313] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-15 20:09:55,883 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-15 20:09:55,883 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 34 [2022-10-15 20:09:55,884 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [369333281] [2022-10-15 20:09:55,884 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-15 20:09:55,885 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2022-10-15 20:09:55,885 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 20:09:55,886 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2022-10-15 20:09:55,887 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=306, Invalid=816, Unknown=0, NotChecked=0, Total=1122 [2022-10-15 20:09:55,888 INFO L87 Difference]: Start difference. First operand 127 states and 145 transitions. Second operand has 34 states, 34 states have (on average 2.176470588235294) internal successors, (74), 34 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 20:09:56,303 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 20:09:56,303 INFO L93 Difference]: Finished difference Result 304 states and 355 transitions. [2022-10-15 20:09:56,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-10-15 20:09:56,304 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 34 states have (on average 2.176470588235294) internal successors, (74), 34 states have internal predecessors, (74), 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 [2022-10-15 20:09:56,305 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 20:09:56,306 INFO L225 Difference]: With dead ends: 304 [2022-10-15 20:09:56,307 INFO L226 Difference]: Without dead ends: 208 [2022-10-15 20:09:56,309 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 113 GetRequests, 67 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 479 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=659, Invalid=1597, Unknown=0, NotChecked=0, Total=2256 [2022-10-15 20:09:56,310 INFO L413 NwaCegarLoop]: 74 mSDtfsCounter, 239 mSDsluCounter, 326 mSDsCounter, 0 mSdLazyCounter, 187 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 241 SdHoareTripleChecker+Valid, 400 SdHoareTripleChecker+Invalid, 219 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 187 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-15 20:09:56,311 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [241 Valid, 400 Invalid, 219 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 187 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-15 20:09:56,312 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 208 states. [2022-10-15 20:09:56,323 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 208 to 159. [2022-10-15 20:09:56,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 159 states, 137 states have (on average 1.2627737226277371) internal successors, (173), 155 states have internal predecessors, (173), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-15 20:09:56,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 159 states to 159 states and 177 transitions. [2022-10-15 20:09:56,326 INFO L78 Accepts]: Start accepts. Automaton has 159 states and 177 transitions. Word has length 42 [2022-10-15 20:09:56,327 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 20:09:56,327 INFO L495 AbstractCegarLoop]: Abstraction has 159 states and 177 transitions. [2022-10-15 20:09:56,327 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 2.176470588235294) internal successors, (74), 34 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 20:09:56,328 INFO L276 IsEmpty]: Start isEmpty. Operand 159 states and 177 transitions. [2022-10-15 20:09:56,329 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2022-10-15 20:09:56,329 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 20:09:56,329 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 15, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 20:09:56,379 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-10-15 20:09:56,542 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 20:09:56,543 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2022-10-15 20:09:56,544 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 20:09:56,544 INFO L85 PathProgramCache]: Analyzing trace with hash -3805708, now seen corresponding path program 3 times [2022-10-15 20:09:56,545 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 20:09:56,545 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1556974211] [2022-10-15 20:09:56,546 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 20:09:56,546 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 20:09:56,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 20:09:57,752 INFO L134 CoverageAnalysis]: Checked inductivity of 439 backedges. 0 proven. 435 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-10-15 20:09:57,753 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 20:09:57,753 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1556974211] [2022-10-15 20:09:57,753 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1556974211] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 20:09:57,753 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1909044700] [2022-10-15 20:09:57,754 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-10-15 20:09:57,754 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 20:09:57,754 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 20:09:57,757 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-15 20:09:57,764 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-10-15 20:09:57,841 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-10-15 20:09:57,842 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-15 20:09:57,843 INFO L263 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 4 conjunts are in the unsatisfiable core [2022-10-15 20:09:57,847 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 20:09:57,904 INFO L134 CoverageAnalysis]: Checked inductivity of 439 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 435 trivial. 0 not checked. [2022-10-15 20:09:57,905 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-15 20:09:57,905 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1909044700] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 20:09:57,905 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-15 20:09:57,905 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [33] total 35 [2022-10-15 20:09:57,906 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [314073452] [2022-10-15 20:09:57,906 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 20:09:57,907 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-15 20:09:57,907 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 20:09:57,907 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-15 20:09:57,908 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=292, Invalid=898, Unknown=0, NotChecked=0, Total=1190 [2022-10-15 20:09:57,909 INFO L87 Difference]: Start difference. First operand 159 states and 177 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) [2022-10-15 20:09:57,961 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 20:09:57,962 INFO L93 Difference]: Finished difference Result 159 states and 177 transitions. [2022-10-15 20:09:57,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-15 20:09:57,963 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 74 [2022-10-15 20:09:57,964 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 20:09:57,965 INFO L225 Difference]: With dead ends: 159 [2022-10-15 20:09:57,965 INFO L226 Difference]: Without dead ends: 158 [2022-10-15 20:09:57,967 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 73 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 268 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=296, Invalid=964, Unknown=0, NotChecked=0, Total=1260 [2022-10-15 20:09:57,968 INFO L413 NwaCegarLoop]: 78 mSDtfsCounter, 66 mSDsluCounter, 90 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 168 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 [2022-10-15 20:09:57,969 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [68 Valid, 168 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 20:09:57,970 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 158 states. [2022-10-15 20:09:57,980 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 158 to 155. [2022-10-15 20:09:57,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 155 states, 134 states have (on average 1.2611940298507462) internal successors, (169), 151 states have internal predecessors, (169), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-15 20:09:57,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155 states to 155 states and 173 transitions. [2022-10-15 20:09:57,983 INFO L78 Accepts]: Start accepts. Automaton has 155 states and 173 transitions. Word has length 74 [2022-10-15 20:09:57,983 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 20:09:57,984 INFO L495 AbstractCegarLoop]: Abstraction has 155 states and 173 transitions. [2022-10-15 20:09:57,984 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) [2022-10-15 20:09:57,984 INFO L276 IsEmpty]: Start isEmpty. Operand 155 states and 173 transitions. [2022-10-15 20:09:57,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-10-15 20:09:57,985 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 20:09:57,986 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 20:09:58,032 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-10-15 20:09:58,199 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-10-15 20:09:58,200 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2022-10-15 20:09:58,201 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 20:09:58,201 INFO L85 PathProgramCache]: Analyzing trace with hash 1055949087, now seen corresponding path program 1 times [2022-10-15 20:09:58,202 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 20:09:58,202 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1230786689] [2022-10-15 20:09:58,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 20:09:58,203 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 20:09:58,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 20:09:58,364 INFO L134 CoverageAnalysis]: Checked inductivity of 436 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 435 trivial. 0 not checked. [2022-10-15 20:09:58,365 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 20:09:58,365 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1230786689] [2022-10-15 20:09:58,365 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1230786689] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 20:09:58,365 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2111830689] [2022-10-15 20:09:58,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 20:09:58,366 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 20:09:58,366 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 20:09:58,367 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-15 20:09:58,388 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-10-15 20:09:58,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 20:09:58,479 INFO L263 TraceCheckSpWp]: Trace formula consists of 294 conjuncts, 32 conjunts are in the unsatisfiable core [2022-10-15 20:09:58,484 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 20:09:59,099 INFO L134 CoverageAnalysis]: Checked inductivity of 436 backedges. 0 proven. 435 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-15 20:09:59,099 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-15 20:10:00,248 INFO L134 CoverageAnalysis]: Checked inductivity of 436 backedges. 0 proven. 435 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-15 20:10:00,248 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2111830689] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-15 20:10:00,248 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-15 20:10:00,249 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 33, 33] total 67 [2022-10-15 20:10:00,249 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [317214272] [2022-10-15 20:10:00,249 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-15 20:10:00,250 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 67 states [2022-10-15 20:10:00,250 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 20:10:00,252 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 67 interpolants. [2022-10-15 20:10:00,255 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1063, Invalid=3359, Unknown=0, NotChecked=0, Total=4422 [2022-10-15 20:10:00,256 INFO L87 Difference]: Start difference. First operand 155 states and 173 transitions. Second operand has 67 states, 67 states have (on average 2.283582089552239) internal successors, (153), 67 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 20:10:01,556 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 20:10:01,557 INFO L93 Difference]: Finished difference Result 433 states and 504 transitions. [2022-10-15 20:10:01,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 67 states. [2022-10-15 20:10:01,558 INFO L78 Accepts]: Start accepts. Automaton has has 67 states, 67 states have (on average 2.283582089552239) internal successors, (153), 67 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 77 [2022-10-15 20:10:01,559 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 20:10:01,562 INFO L225 Difference]: With dead ends: 433 [2022-10-15 20:10:01,562 INFO L226 Difference]: Without dead ends: 341 [2022-10-15 20:10:01,568 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 190 GetRequests, 92 SyntacticMatches, 0 SemanticMatches, 98 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1923 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=2645, Invalid=7255, Unknown=0, NotChecked=0, Total=9900 [2022-10-15 20:10:01,569 INFO L413 NwaCegarLoop]: 68 mSDtfsCounter, 954 mSDsluCounter, 516 mSDsCounter, 0 mSdLazyCounter, 382 mSolverCounterSat, 89 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 957 SdHoareTripleChecker+Valid, 584 SdHoareTripleChecker+Invalid, 471 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 89 IncrementalHoareTripleChecker+Valid, 382 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-10-15 20:10:01,569 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [957 Valid, 584 Invalid, 471 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [89 Valid, 382 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-10-15 20:10:01,571 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 341 states. [2022-10-15 20:10:01,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 341 to 223. [2022-10-15 20:10:01,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 223 states, 202 states have (on average 1.1732673267326732) internal successors, (237), 219 states have internal predecessors, (237), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-15 20:10:01,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 223 states to 223 states and 241 transitions. [2022-10-15 20:10:01,590 INFO L78 Accepts]: Start accepts. Automaton has 223 states and 241 transitions. Word has length 77 [2022-10-15 20:10:01,591 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 20:10:01,592 INFO L495 AbstractCegarLoop]: Abstraction has 223 states and 241 transitions. [2022-10-15 20:10:01,592 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 67 states, 67 states have (on average 2.283582089552239) internal successors, (153), 67 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 20:10:01,592 INFO L276 IsEmpty]: Start isEmpty. Operand 223 states and 241 transitions. [2022-10-15 20:10:01,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2022-10-15 20:10:01,602 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 20:10:01,602 INFO L195 NwaCegarLoop]: trace histogram [31, 31, 31, 31, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 20:10:01,644 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-10-15 20:10:01,815 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 20:10:01,816 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2022-10-15 20:10:01,816 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 20:10:01,816 INFO L85 PathProgramCache]: Analyzing trace with hash 2043028443, now seen corresponding path program 2 times [2022-10-15 20:10:01,817 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 20:10:01,817 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [205263259] [2022-10-15 20:10:01,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 20:10:01,818 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 20:10:01,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 20:10:02,209 INFO L134 CoverageAnalysis]: Checked inductivity of 1897 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1897 trivial. 0 not checked. [2022-10-15 20:10:02,209 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 20:10:02,210 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [205263259] [2022-10-15 20:10:02,210 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [205263259] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 20:10:02,210 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 20:10:02,211 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-15 20:10:02,211 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1546883038] [2022-10-15 20:10:02,211 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 20:10:02,212 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-15 20:10:02,212 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 20:10:02,213 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-15 20:10:02,213 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-15 20:10:02,214 INFO L87 Difference]: Start difference. First operand 223 states and 241 transitions. Second operand has 4 states, 4 states have (on average 5.25) internal successors, (21), 4 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 20:10:02,286 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 20:10:02,286 INFO L93 Difference]: Finished difference Result 360 states and 396 transitions. [2022-10-15 20:10:02,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-15 20:10:02,287 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.25) internal successors, (21), 4 states have internal predecessors, (21), 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 145 [2022-10-15 20:10:02,288 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 20:10:02,290 INFO L225 Difference]: With dead ends: 360 [2022-10-15 20:10:02,290 INFO L226 Difference]: Without dead ends: 277 [2022-10-15 20:10:02,291 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-15 20:10:02,292 INFO L413 NwaCegarLoop]: 90 mSDtfsCounter, 79 mSDsluCounter, 151 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 81 SdHoareTripleChecker+Valid, 241 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 20:10:02,292 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [81 Valid, 241 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 20:10:02,294 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 277 states. [2022-10-15 20:10:02,312 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 277 to 219. [2022-10-15 20:10:02,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 219 states, 198 states have (on average 1.1565656565656566) internal successors, (229), 215 states have internal predecessors, (229), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-15 20:10:02,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 219 states to 219 states and 233 transitions. [2022-10-15 20:10:02,315 INFO L78 Accepts]: Start accepts. Automaton has 219 states and 233 transitions. Word has length 145 [2022-10-15 20:10:02,316 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 20:10:02,316 INFO L495 AbstractCegarLoop]: Abstraction has 219 states and 233 transitions. [2022-10-15 20:10:02,316 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.25) internal successors, (21), 4 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 20:10:02,317 INFO L276 IsEmpty]: Start isEmpty. Operand 219 states and 233 transitions. [2022-10-15 20:10:02,319 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2022-10-15 20:10:02,319 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 20:10:02,320 INFO L195 NwaCegarLoop]: trace histogram [31, 31, 31, 31, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 20:10:02,320 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-10-15 20:10:02,321 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2022-10-15 20:10:02,322 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 20:10:02,322 INFO L85 PathProgramCache]: Analyzing trace with hash -1092166742, now seen corresponding path program 1 times [2022-10-15 20:10:02,322 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 20:10:02,323 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [282358375] [2022-10-15 20:10:02,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 20:10:02,323 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 20:10:02,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 20:10:02,614 INFO L134 CoverageAnalysis]: Checked inductivity of 1897 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1897 trivial. 0 not checked. [2022-10-15 20:10:02,615 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 20:10:02,615 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [282358375] [2022-10-15 20:10:02,615 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [282358375] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 20:10:02,615 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 20:10:02,615 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-15 20:10:02,616 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1385875440] [2022-10-15 20:10:02,616 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 20:10:02,617 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-15 20:10:02,617 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 20:10:02,618 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-15 20:10:02,619 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-15 20:10:02,619 INFO L87 Difference]: Start difference. First operand 219 states and 233 transitions. Second operand has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 20:10:02,644 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 20:10:02,644 INFO L93 Difference]: Finished difference Result 222 states and 234 transitions. [2022-10-15 20:10:02,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-15 20:10:02,645 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 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 146 [2022-10-15 20:10:02,645 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 20:10:02,646 INFO L225 Difference]: With dead ends: 222 [2022-10-15 20:10:02,646 INFO L226 Difference]: Without dead ends: 153 [2022-10-15 20:10:02,649 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-15 20:10:02,650 INFO L413 NwaCegarLoop]: 27 mSDtfsCounter, 8 mSDsluCounter, 43 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 70 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 20:10:02,650 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 70 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 20:10:02,651 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 153 states. [2022-10-15 20:10:02,659 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 153 to 152. [2022-10-15 20:10:02,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 152 states, 150 states have (on average 1.0266666666666666) internal successors, (154), 151 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 20:10:02,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 152 states and 154 transitions. [2022-10-15 20:10:02,661 INFO L78 Accepts]: Start accepts. Automaton has 152 states and 154 transitions. Word has length 146 [2022-10-15 20:10:02,662 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 20:10:02,662 INFO L495 AbstractCegarLoop]: Abstraction has 152 states and 154 transitions. [2022-10-15 20:10:02,662 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 20:10:02,662 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 154 transitions. [2022-10-15 20:10:02,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2022-10-15 20:10:02,664 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 20:10:02,664 INFO L195 NwaCegarLoop]: trace histogram [31, 31, 31, 31, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 20:10:02,665 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-10-15 20:10:02,665 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2022-10-15 20:10:02,665 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 20:10:02,666 INFO L85 PathProgramCache]: Analyzing trace with hash 1940610040, now seen corresponding path program 1 times [2022-10-15 20:10:02,666 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 20:10:02,666 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [124927087] [2022-10-15 20:10:02,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 20:10:02,666 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 20:10:02,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 20:10:02,948 INFO L134 CoverageAnalysis]: Checked inductivity of 1897 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1897 trivial. 0 not checked. [2022-10-15 20:10:02,948 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 20:10:02,949 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [124927087] [2022-10-15 20:10:02,949 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [124927087] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 20:10:02,949 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 20:10:02,949 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 20:10:02,949 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [520538903] [2022-10-15 20:10:02,949 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 20:10:02,950 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-15 20:10:02,950 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 20:10:02,951 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-15 20:10:02,951 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-15 20:10:02,951 INFO L87 Difference]: Start difference. First operand 152 states and 154 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) [2022-10-15 20:10:02,997 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 20:10:02,997 INFO L93 Difference]: Finished difference Result 164 states and 166 transitions. [2022-10-15 20:10:02,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-15 20:10:02,998 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 149 [2022-10-15 20:10:02,999 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 20:10:03,000 INFO L225 Difference]: With dead ends: 164 [2022-10-15 20:10:03,000 INFO L226 Difference]: Without dead ends: 162 [2022-10-15 20:10:03,001 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-15 20:10:03,002 INFO L413 NwaCegarLoop]: 22 mSDtfsCounter, 6 mSDsluCounter, 37 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 59 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 20:10:03,002 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 59 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 20:10:03,004 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 162 states. [2022-10-15 20:10:03,016 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 162 to 162. [2022-10-15 20:10:03,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 162 states, 160 states have (on average 1.025) internal successors, (164), 161 states have internal predecessors, (164), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 20:10:03,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 162 states and 164 transitions. [2022-10-15 20:10:03,018 INFO L78 Accepts]: Start accepts. Automaton has 162 states and 164 transitions. Word has length 149 [2022-10-15 20:10:03,019 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 20:10:03,019 INFO L495 AbstractCegarLoop]: Abstraction has 162 states and 164 transitions. [2022-10-15 20:10:03,019 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) [2022-10-15 20:10:03,020 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 164 transitions. [2022-10-15 20:10:03,022 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2022-10-15 20:10:03,022 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 20:10:03,022 INFO L195 NwaCegarLoop]: trace histogram [31, 31, 31, 31, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 20:10:03,023 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-10-15 20:10:03,023 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2022-10-15 20:10:03,024 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 20:10:03,024 INFO L85 PathProgramCache]: Analyzing trace with hash -161098454, now seen corresponding path program 1 times [2022-10-15 20:10:03,024 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 20:10:03,025 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1893750996] [2022-10-15 20:10:03,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 20:10:03,025 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 20:10:03,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 20:10:03,300 INFO L134 CoverageAnalysis]: Checked inductivity of 1906 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 1898 trivial. 0 not checked. [2022-10-15 20:10:03,300 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 20:10:03,301 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1893750996] [2022-10-15 20:10:03,301 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1893750996] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 20:10:03,301 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 20:10:03,301 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 20:10:03,301 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [789255] [2022-10-15 20:10:03,302 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 20:10:03,302 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-15 20:10:03,302 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 20:10:03,303 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-15 20:10:03,303 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-15 20:10:03,303 INFO L87 Difference]: Start difference. First operand 162 states and 164 transitions. Second operand has 4 states, 3 states have (on average 11.666666666666666) internal successors, (35), 4 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 20:10:03,340 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 20:10:03,341 INFO L93 Difference]: Finished difference Result 162 states and 164 transitions. [2022-10-15 20:10:03,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-15 20:10:03,342 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 11.666666666666666) internal successors, (35), 4 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 159 [2022-10-15 20:10:03,342 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 20:10:03,343 INFO L225 Difference]: With dead ends: 162 [2022-10-15 20:10:03,344 INFO L226 Difference]: Without dead ends: 161 [2022-10-15 20:10:03,344 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-15 20:10:03,345 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 8 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 47 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 20:10:03,346 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 47 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 20:10:03,347 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 161 states. [2022-10-15 20:10:03,358 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 161 to 161. [2022-10-15 20:10:03,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 161 states, 160 states have (on average 1.01875) internal successors, (163), 160 states have internal predecessors, (163), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 20:10:03,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 161 states to 161 states and 163 transitions. [2022-10-15 20:10:03,361 INFO L78 Accepts]: Start accepts. Automaton has 161 states and 163 transitions. Word has length 159 [2022-10-15 20:10:03,361 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 20:10:03,361 INFO L495 AbstractCegarLoop]: Abstraction has 161 states and 163 transitions. [2022-10-15 20:10:03,361 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 11.666666666666666) internal successors, (35), 4 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 20:10:03,362 INFO L276 IsEmpty]: Start isEmpty. Operand 161 states and 163 transitions. [2022-10-15 20:10:03,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2022-10-15 20:10:03,364 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 20:10:03,364 INFO L195 NwaCegarLoop]: trace histogram [31, 31, 31, 31, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 20:10:03,364 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-10-15 20:10:03,364 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2022-10-15 20:10:03,365 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 20:10:03,365 INFO L85 PathProgramCache]: Analyzing trace with hash -699084580, now seen corresponding path program 1 times [2022-10-15 20:10:03,365 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 20:10:03,366 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1970360614] [2022-10-15 20:10:03,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 20:10:03,366 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 20:10:03,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 20:10:07,090 INFO L134 CoverageAnalysis]: Checked inductivity of 1907 backedges. 0 proven. 1891 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-10-15 20:10:07,091 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 20:10:07,091 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1970360614] [2022-10-15 20:10:07,091 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1970360614] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 20:10:07,092 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1935659117] [2022-10-15 20:10:07,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 20:10:07,092 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 20:10:07,093 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 20:10:07,099 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-15 20:10:07,101 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-10-15 20:10:07,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 20:10:07,306 INFO L263 TraceCheckSpWp]: Trace formula consists of 563 conjuncts, 64 conjunts are in the unsatisfiable core [2022-10-15 20:10:07,315 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 20:10:07,627 INFO L134 CoverageAnalysis]: Checked inductivity of 1907 backedges. 0 proven. 1891 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-10-15 20:10:07,627 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-15 20:10:11,620 INFO L134 CoverageAnalysis]: Checked inductivity of 1907 backedges. 0 proven. 1891 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-10-15 20:10:11,620 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1935659117] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-15 20:10:11,621 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-15 20:10:11,621 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [65, 65, 65] total 130 [2022-10-15 20:10:11,621 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1235976300] [2022-10-15 20:10:11,621 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-15 20:10:11,623 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 130 states [2022-10-15 20:10:11,623 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 20:10:11,625 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 130 interpolants. [2022-10-15 20:10:11,632 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=4290, Invalid=12480, Unknown=0, NotChecked=0, Total=16770 [2022-10-15 20:10:11,632 INFO L87 Difference]: Start difference. First operand 161 states and 163 transitions. Second operand has 130 states, 130 states have (on average 2.1384615384615384) internal successors, (278), 130 states have internal predecessors, (278), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 20:10:15,213 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 20:10:15,214 INFO L93 Difference]: Finished difference Result 323 states and 358 transitions. [2022-10-15 20:10:15,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 127 states. [2022-10-15 20:10:15,215 INFO L78 Accepts]: Start accepts. Automaton has has 130 states, 130 states have (on average 2.1384615384615384) internal successors, (278), 130 states have internal predecessors, (278), 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 160 [2022-10-15 20:10:15,216 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 20:10:15,218 INFO L225 Difference]: With dead ends: 323 [2022-10-15 20:10:15,218 INFO L226 Difference]: Without dead ends: 289 [2022-10-15 20:10:15,229 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 445 GetRequests, 255 SyntacticMatches, 0 SemanticMatches, 190 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8087 ImplicationChecksByTransitivity, 7.7s TimeCoverageRelationStatistics Valid=10307, Invalid=26365, Unknown=0, NotChecked=0, Total=36672 [2022-10-15 20:10:15,230 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 683 mSDsluCounter, 84 mSDsCounter, 0 mSdLazyCounter, 407 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 683 SdHoareTripleChecker+Valid, 105 SdHoareTripleChecker+Invalid, 451 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 407 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-10-15 20:10:15,230 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [683 Valid, 105 Invalid, 451 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 407 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-10-15 20:10:15,231 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 289 states. [2022-10-15 20:10:15,243 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 289 to 289. [2022-10-15 20:10:15,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 289 states, 288 states have (on average 1.0104166666666667) internal successors, (291), 288 states have internal predecessors, (291), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 20:10:15,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 289 states to 289 states and 291 transitions. [2022-10-15 20:10:15,246 INFO L78 Accepts]: Start accepts. Automaton has 289 states and 291 transitions. Word has length 160 [2022-10-15 20:10:15,247 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 20:10:15,247 INFO L495 AbstractCegarLoop]: Abstraction has 289 states and 291 transitions. [2022-10-15 20:10:15,247 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 130 states, 130 states have (on average 2.1384615384615384) internal successors, (278), 130 states have internal predecessors, (278), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 20:10:15,248 INFO L276 IsEmpty]: Start isEmpty. Operand 289 states and 291 transitions. [2022-10-15 20:10:15,251 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 289 [2022-10-15 20:10:15,252 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 20:10:15,252 INFO L195 NwaCegarLoop]: trace histogram [63, 63, 63, 63, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 20:10:15,293 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-10-15 20:10:15,461 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 20:10:15,463 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2022-10-15 20:10:15,464 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 20:10:15,464 INFO L85 PathProgramCache]: Analyzing trace with hash 1992503644, now seen corresponding path program 2 times [2022-10-15 20:10:15,465 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 20:10:15,465 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1558552581] [2022-10-15 20:10:15,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 20:10:15,465 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 20:10:15,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 20:10:27,673 INFO L134 CoverageAnalysis]: Checked inductivity of 7891 backedges. 0 proven. 7875 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-10-15 20:10:27,673 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 20:10:27,673 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1558552581] [2022-10-15 20:10:27,674 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1558552581] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 20:10:27,674 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1803705991] [2022-10-15 20:10:27,674 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-15 20:10:27,674 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 20:10:27,674 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 20:10:27,678 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-15 20:10:27,686 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-10-15 20:10:27,934 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-10-15 20:10:27,935 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-15 20:10:27,941 INFO L263 TraceCheckSpWp]: Trace formula consists of 979 conjuncts, 128 conjunts are in the unsatisfiable core [2022-10-15 20:10:27,951 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 20:10:28,470 INFO L134 CoverageAnalysis]: Checked inductivity of 7891 backedges. 0 proven. 7875 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-10-15 20:10:28,470 INFO L328 TraceCheckSpWp]: Computing backward predicates...