/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Overflow-32bit-Automizer_Default.epf -i ../sv-benchmarks/c/array-examples/standard_init8_ground-1.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-05d3305-m [2022-10-16 10:16:15,145 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-16 10:16:15,148 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-16 10:16:15,183 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-16 10:16:15,183 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-16 10:16:15,185 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-16 10:16:15,187 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-16 10:16:15,215 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-16 10:16:15,221 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-16 10:16:15,222 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-16 10:16:15,234 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-16 10:16:15,239 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-16 10:16:15,239 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-16 10:16:15,241 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-16 10:16:15,244 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-16 10:16:15,245 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-16 10:16:15,246 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-16 10:16:15,250 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-16 10:16:15,256 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-16 10:16:15,260 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-16 10:16:15,262 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-16 10:16:15,263 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-16 10:16:15,264 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-16 10:16:15,265 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-16 10:16:15,269 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-16 10:16:15,270 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-16 10:16:15,270 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-16 10:16:15,271 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-16 10:16:15,272 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-16 10:16:15,273 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-16 10:16:15,273 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-16 10:16:15,274 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-16 10:16:15,275 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-16 10:16:15,276 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-16 10:16:15,277 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-16 10:16:15,277 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-16 10:16:15,278 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-16 10:16:15,278 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-16 10:16:15,279 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-16 10:16:15,280 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-16 10:16:15,280 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-16 10:16:15,283 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Overflow-32bit-Automizer_Default.epf [2022-10-16 10:16:15,312 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-16 10:16:15,312 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-16 10:16:15,313 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-16 10:16:15,313 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-16 10:16:15,314 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-16 10:16:15,314 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-16 10:16:15,315 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-16 10:16:15,315 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-16 10:16:15,315 INFO L138 SettingsManager]: * Use SBE=true [2022-10-16 10:16:15,315 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-16 10:16:15,315 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-16 10:16:15,316 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-16 10:16:15,316 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-16 10:16:15,316 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-16 10:16:15,316 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-16 10:16:15,316 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-16 10:16:15,316 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-16 10:16:15,317 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-16 10:16:15,317 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-10-16 10:16:15,317 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-16 10:16:15,317 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-16 10:16:15,317 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-16 10:16:15,317 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-16 10:16:15,318 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-16 10:16:15,318 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-16 10:16:15,318 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-16 10:16:15,318 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 10:16:15,319 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-16 10:16:15,319 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-16 10:16:15,319 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-16 10:16:15,319 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-16 10:16:15,319 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-16 10:16:15,319 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-16 10:16:15,320 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-10-16 10:16:15,716 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-16 10:16:15,748 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-16 10:16:15,752 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-16 10:16:15,754 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-16 10:16:15,755 INFO L275 PluginConnector]: CDTParser initialized [2022-10-16 10:16:15,756 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/array-examples/standard_init8_ground-1.i [2022-10-16 10:16:15,836 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ce3ac9700/0f19dbc0c2b7463ba21630c42d99c28a/FLAGc7a38136b [2022-10-16 10:16:16,445 INFO L306 CDTParser]: Found 1 translation units. [2022-10-16 10:16:16,446 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-examples/standard_init8_ground-1.i [2022-10-16 10:16:16,454 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ce3ac9700/0f19dbc0c2b7463ba21630c42d99c28a/FLAGc7a38136b [2022-10-16 10:16:16,846 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ce3ac9700/0f19dbc0c2b7463ba21630c42d99c28a [2022-10-16 10:16:16,851 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-16 10:16:16,860 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-10-16 10:16:16,861 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-16 10:16:16,862 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-16 10:16:16,868 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-16 10:16:16,870 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 10:16:16" (1/1) ... [2022-10-16 10:16:16,874 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6e6e9894 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:16:16, skipping insertion in model container [2022-10-16 10:16:16,874 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 10:16:16" (1/1) ... [2022-10-16 10:16:16,885 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-16 10:16:16,908 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-16 10:16:17,104 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-examples/standard_init8_ground-1.i[816,829] [2022-10-16 10:16:17,126 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 10:16:17,135 INFO L203 MainTranslator]: Completed pre-run [2022-10-16 10:16:17,150 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-examples/standard_init8_ground-1.i[816,829] [2022-10-16 10:16:17,161 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 10:16:17,177 INFO L208 MainTranslator]: Completed translation [2022-10-16 10:16:17,178 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:16:17 WrapperNode [2022-10-16 10:16:17,178 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-16 10:16:17,180 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-16 10:16:17,180 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-16 10:16:17,180 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-16 10:16:17,193 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:16:17" (1/1) ... [2022-10-16 10:16:17,214 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:16:17" (1/1) ... [2022-10-16 10:16:17,254 INFO L138 Inliner]: procedures = 15, calls = 19, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 107 [2022-10-16 10:16:17,255 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-16 10:16:17,256 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-16 10:16:17,256 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-16 10:16:17,256 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-16 10:16:17,298 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:16:17" (1/1) ... [2022-10-16 10:16:17,299 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:16:17" (1/1) ... [2022-10-16 10:16:17,304 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:16:17" (1/1) ... [2022-10-16 10:16:17,305 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:16:17" (1/1) ... [2022-10-16 10:16:17,317 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:16:17" (1/1) ... [2022-10-16 10:16:17,338 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:16:17" (1/1) ... [2022-10-16 10:16:17,340 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:16:17" (1/1) ... [2022-10-16 10:16:17,341 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:16:17" (1/1) ... [2022-10-16 10:16:17,347 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-16 10:16:17,351 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-16 10:16:17,351 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-16 10:16:17,351 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-16 10:16:17,352 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:16:17" (1/1) ... [2022-10-16 10:16:17,366 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 10:16:17,379 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:16:17,396 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-10-16 10:16:17,417 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-10-16 10:16:17,461 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-16 10:16:17,461 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-16 10:16:17,462 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-10-16 10:16:17,462 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-10-16 10:16:17,462 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-16 10:16:17,462 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-16 10:16:17,462 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-10-16 10:16:17,463 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-10-16 10:16:17,533 INFO L235 CfgBuilder]: Building ICFG [2022-10-16 10:16:17,536 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-16 10:16:17,814 INFO L276 CfgBuilder]: Performing block encoding [2022-10-16 10:16:17,826 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-16 10:16:17,826 INFO L300 CfgBuilder]: Removed 9 assume(true) statements. [2022-10-16 10:16:17,829 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 10:16:17 BoogieIcfgContainer [2022-10-16 10:16:17,829 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-16 10:16:17,833 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-16 10:16:17,834 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-16 10:16:17,838 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-16 10:16:17,838 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 10:16:16" (1/3) ... [2022-10-16 10:16:17,839 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c432eec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 10:16:17, skipping insertion in model container [2022-10-16 10:16:17,840 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:16:17" (2/3) ... [2022-10-16 10:16:17,840 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c432eec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 10:16:17, skipping insertion in model container [2022-10-16 10:16:17,840 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 10:16:17" (3/3) ... [2022-10-16 10:16:17,842 INFO L112 eAbstractionObserver]: Analyzing ICFG standard_init8_ground-1.i [2022-10-16 10:16:17,860 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-16 10:16:17,860 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 18 error locations. [2022-10-16 10:16:17,920 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-16 10:16:17,929 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;@2b0bece3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-16 10:16:17,930 INFO L358 AbstractCegarLoop]: Starting to check reachability of 18 error locations. [2022-10-16 10:16:17,935 INFO L276 IsEmpty]: Start isEmpty. Operand has 63 states, 44 states have (on average 1.8409090909090908) internal successors, (81), 62 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:16:17,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-10-16 10:16:17,942 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:16:17,943 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-10-16 10:16:17,944 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2022-10-16 10:16:17,956 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:16:17,956 INFO L85 PathProgramCache]: Analyzing trace with hash 925796, now seen corresponding path program 1 times [2022-10-16 10:16:17,967 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:16:17,969 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [65185935] [2022-10-16 10:16:17,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:16:17,970 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:16:18,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:16:18,172 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:16:18,172 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:16:18,173 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [65185935] [2022-10-16 10:16:18,173 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [65185935] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 10:16:18,174 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 10:16:18,174 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-16 10:16:18,176 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [24555480] [2022-10-16 10:16:18,177 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 10:16:18,182 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 10:16:18,182 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:16:18,214 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 10:16:18,215 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 10:16:18,219 INFO L87 Difference]: Start difference. First operand has 63 states, 44 states have (on average 1.8409090909090908) internal successors, (81), 62 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:16:18,403 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:16:18,404 INFO L93 Difference]: Finished difference Result 145 states and 209 transitions. [2022-10-16 10:16:18,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 10:16:18,409 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2022-10-16 10:16:18,409 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:16:18,419 INFO L225 Difference]: With dead ends: 145 [2022-10-16 10:16:18,419 INFO L226 Difference]: Without dead ends: 82 [2022-10-16 10:16:18,423 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 10:16:18,427 INFO L413 NwaCegarLoop]: 47 mSDtfsCounter, 15 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 62 SdHoareTripleChecker+Invalid, 102 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 10:16:18,429 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 62 Invalid, 102 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 10:16:18,447 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states. [2022-10-16 10:16:18,470 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 82. [2022-10-16 10:16:18,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 82 states, 64 states have (on average 1.40625) internal successors, (90), 81 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:16:18,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 90 transitions. [2022-10-16 10:16:18,482 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 90 transitions. Word has length 4 [2022-10-16 10:16:18,482 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:16:18,482 INFO L495 AbstractCegarLoop]: Abstraction has 82 states and 90 transitions. [2022-10-16 10:16:18,483 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:16:18,483 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 90 transitions. [2022-10-16 10:16:18,483 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-10-16 10:16:18,483 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:16:18,485 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1] [2022-10-16 10:16:18,485 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-16 10:16:18,485 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2022-10-16 10:16:18,486 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:16:18,487 INFO L85 PathProgramCache]: Analyzing trace with hash 1810629419, now seen corresponding path program 1 times [2022-10-16 10:16:18,487 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:16:18,488 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [768244242] [2022-10-16 10:16:18,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:16:18,488 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:16:18,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:16:18,580 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-16 10:16:18,581 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:16:18,581 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [768244242] [2022-10-16 10:16:18,582 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [768244242] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 10:16:18,582 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 10:16:18,582 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-16 10:16:18,582 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [375200287] [2022-10-16 10:16:18,583 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 10:16:18,584 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 10:16:18,585 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:16:18,585 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 10:16:18,586 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 10:16:18,586 INFO L87 Difference]: Start difference. First operand 82 states and 90 transitions. Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:16:18,744 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:16:18,744 INFO L93 Difference]: Finished difference Result 82 states and 90 transitions. [2022-10-16 10:16:18,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 10:16:18,745 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2022-10-16 10:16:18,745 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:16:18,746 INFO L225 Difference]: With dead ends: 82 [2022-10-16 10:16:18,747 INFO L226 Difference]: Without dead ends: 74 [2022-10-16 10:16:18,747 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 10:16:18,749 INFO L413 NwaCegarLoop]: 26 mSDtfsCounter, 23 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 36 SdHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 10:16:18,750 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 36 Invalid, 70 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 10:16:18,752 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2022-10-16 10:16:18,762 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 74. [2022-10-16 10:16:18,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 74 states, 64 states have (on average 1.28125) internal successors, (82), 73 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:16:18,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 82 transitions. [2022-10-16 10:16:18,775 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 82 transitions. Word has length 7 [2022-10-16 10:16:18,775 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:16:18,775 INFO L495 AbstractCegarLoop]: Abstraction has 74 states and 82 transitions. [2022-10-16 10:16:18,776 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:16:18,776 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 82 transitions. [2022-10-16 10:16:18,776 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-10-16 10:16:18,777 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:16:18,777 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1] [2022-10-16 10:16:18,777 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-16 10:16:18,778 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2022-10-16 10:16:18,778 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:16:18,779 INFO L85 PathProgramCache]: Analyzing trace with hash 294937186, now seen corresponding path program 1 times [2022-10-16 10:16:18,779 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:16:18,779 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1464831018] [2022-10-16 10:16:18,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:16:18,780 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:16:18,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:16:18,873 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:16:18,873 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:16:18,877 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1464831018] [2022-10-16 10:16:18,877 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1464831018] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:16:18,878 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [158002368] [2022-10-16 10:16:18,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:16:18,878 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:16:18,879 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:16:18,887 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 10:16:18,908 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-10-16 10:16:18,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:16:18,952 INFO L263 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 3 conjunts are in the unsatisfiable core [2022-10-16 10:16:18,957 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:16:19,021 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:16:19,022 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 10:16:19,022 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [158002368] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 10:16:19,022 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 10:16:19,023 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2022-10-16 10:16:19,023 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [86981194] [2022-10-16 10:16:19,023 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 10:16:19,024 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 10:16:19,024 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:16:19,025 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 10:16:19,025 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-16 10:16:19,026 INFO L87 Difference]: Start difference. First operand 74 states and 82 transitions. Second operand has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:16:19,150 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:16:19,150 INFO L93 Difference]: Finished difference Result 74 states and 82 transitions. [2022-10-16 10:16:19,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 10:16:19,152 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2022-10-16 10:16:19,152 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:16:19,154 INFO L225 Difference]: With dead ends: 74 [2022-10-16 10:16:19,154 INFO L226 Difference]: Without dead ends: 66 [2022-10-16 10:16:19,155 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-16 10:16:19,157 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 45 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 20 SdHoareTripleChecker+Invalid, 102 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 10:16:19,158 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 20 Invalid, 102 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 10:16:19,159 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2022-10-16 10:16:19,166 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 50. [2022-10-16 10:16:19,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50 states, 48 states have (on average 1.2083333333333333) internal successors, (58), 49 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:16:19,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 58 transitions. [2022-10-16 10:16:19,169 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 58 transitions. Word has length 8 [2022-10-16 10:16:19,169 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:16:19,169 INFO L495 AbstractCegarLoop]: Abstraction has 50 states and 58 transitions. [2022-10-16 10:16:19,169 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:16:19,170 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 58 transitions. [2022-10-16 10:16:19,171 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-10-16 10:16:19,172 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:16:19,172 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:16:19,211 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-10-16 10:16:19,387 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:16:19,388 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2022-10-16 10:16:19,390 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:16:19,390 INFO L85 PathProgramCache]: Analyzing trace with hash 574878894, now seen corresponding path program 1 times [2022-10-16 10:16:19,391 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:16:19,391 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2100139720] [2022-10-16 10:16:19,391 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:16:19,391 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:16:19,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:16:19,557 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-10-16 10:16:19,557 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:16:19,558 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2100139720] [2022-10-16 10:16:19,558 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2100139720] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:16:19,558 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1006319740] [2022-10-16 10:16:19,558 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:16:19,559 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:16:19,559 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:16:19,560 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 10:16:19,576 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-10-16 10:16:19,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:16:19,628 INFO L263 TraceCheckSpWp]: Trace formula consists of 143 conjuncts, 3 conjunts are in the unsatisfiable core [2022-10-16 10:16:19,631 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:16:19,652 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-10-16 10:16:19,652 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 10:16:19,685 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-10-16 10:16:19,686 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1006319740] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 10:16:19,686 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 10:16:19,686 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2022-10-16 10:16:19,687 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [921703898] [2022-10-16 10:16:19,687 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 10:16:19,688 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-10-16 10:16:19,688 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:16:19,688 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-10-16 10:16:19,689 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2022-10-16 10:16:19,689 INFO L87 Difference]: Start difference. First operand 50 states and 58 transitions. Second operand has 7 states, 7 states have (on average 8.0) internal successors, (56), 7 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:16:19,925 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:16:19,926 INFO L93 Difference]: Finished difference Result 166 states and 205 transitions. [2022-10-16 10:16:19,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-16 10:16:19,926 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.0) internal successors, (56), 7 states have internal predecessors, (56), 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 47 [2022-10-16 10:16:19,927 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:16:19,928 INFO L225 Difference]: With dead ends: 166 [2022-10-16 10:16:19,928 INFO L226 Difference]: Without dead ends: 122 [2022-10-16 10:16:19,929 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 96 GetRequests, 91 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2022-10-16 10:16:19,931 INFO L413 NwaCegarLoop]: 26 mSDtfsCounter, 96 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 144 mSolverCounterSat, 75 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 96 SdHoareTripleChecker+Valid, 46 SdHoareTripleChecker+Invalid, 219 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 75 IncrementalHoareTripleChecker+Valid, 144 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-16 10:16:19,932 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [96 Valid, 46 Invalid, 219 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [75 Valid, 144 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-16 10:16:19,933 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122 states. [2022-10-16 10:16:19,945 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122 to 122. [2022-10-16 10:16:19,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 122 states, 120 states have (on average 1.0833333333333333) internal successors, (130), 121 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:16:19,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 130 transitions. [2022-10-16 10:16:19,948 INFO L78 Accepts]: Start accepts. Automaton has 122 states and 130 transitions. Word has length 47 [2022-10-16 10:16:19,948 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:16:19,949 INFO L495 AbstractCegarLoop]: Abstraction has 122 states and 130 transitions. [2022-10-16 10:16:19,949 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.0) internal successors, (56), 7 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:16:19,949 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 130 transitions. [2022-10-16 10:16:19,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2022-10-16 10:16:19,953 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:16:19,954 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:16:19,993 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-10-16 10:16:20,169 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3 [2022-10-16 10:16:20,170 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2022-10-16 10:16:20,171 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:16:20,172 INFO L85 PathProgramCache]: Analyzing trace with hash 1035627042, now seen corresponding path program 2 times [2022-10-16 10:16:20,172 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:16:20,173 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1729044629] [2022-10-16 10:16:20,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:16:20,173 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:16:20,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:16:20,569 INFO L134 CoverageAnalysis]: Checked inductivity of 176 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 176 trivial. 0 not checked. [2022-10-16 10:16:20,570 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:16:20,570 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1729044629] [2022-10-16 10:16:20,570 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1729044629] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 10:16:20,571 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 10:16:20,571 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 10:16:20,571 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1928402236] [2022-10-16 10:16:20,571 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 10:16:20,572 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 10:16:20,572 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:16:20,573 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 10:16:20,573 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 10:16:20,573 INFO L87 Difference]: Start difference. First operand 122 states and 130 transitions. Second operand has 4 states, 3 states have (on average 15.666666666666666) internal successors, (47), 4 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:16:20,599 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:16:20,600 INFO L93 Difference]: Finished difference Result 130 states and 138 transitions. [2022-10-16 10:16:20,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 10:16:20,601 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 15.666666666666666) internal successors, (47), 4 states have internal predecessors, (47), 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 119 [2022-10-16 10:16:20,604 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:16:20,606 INFO L225 Difference]: With dead ends: 130 [2022-10-16 10:16:20,606 INFO L226 Difference]: Without dead ends: 128 [2022-10-16 10:16:20,606 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-16 10:16:20,611 INFO L413 NwaCegarLoop]: 46 mSDtfsCounter, 3 mSDsluCounter, 88 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 134 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 10:16:20,612 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 134 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 10:16:20,616 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128 states. [2022-10-16 10:16:20,636 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128 to 128. [2022-10-16 10:16:20,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 128 states, 126 states have (on average 1.0793650793650793) internal successors, (136), 127 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:16:20,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 128 states and 136 transitions. [2022-10-16 10:16:20,641 INFO L78 Accepts]: Start accepts. Automaton has 128 states and 136 transitions. Word has length 119 [2022-10-16 10:16:20,642 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:16:20,642 INFO L495 AbstractCegarLoop]: Abstraction has 128 states and 136 transitions. [2022-10-16 10:16:20,646 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 15.666666666666666) internal successors, (47), 4 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:16:20,646 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 136 transitions. [2022-10-16 10:16:20,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2022-10-16 10:16:20,649 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:16:20,650 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:16:20,650 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-10-16 10:16:20,650 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2022-10-16 10:16:20,651 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:16:20,651 INFO L85 PathProgramCache]: Analyzing trace with hash 894078391, now seen corresponding path program 1 times [2022-10-16 10:16:20,652 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:16:20,652 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1842430836] [2022-10-16 10:16:20,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:16:20,652 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:16:20,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:16:20,935 INFO L134 CoverageAnalysis]: Checked inductivity of 181 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 177 trivial. 0 not checked. [2022-10-16 10:16:20,936 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:16:20,936 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1842430836] [2022-10-16 10:16:20,939 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1842430836] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 10:16:20,939 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 10:16:20,940 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 10:16:20,940 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [783856471] [2022-10-16 10:16:20,940 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 10:16:20,942 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 10:16:20,942 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:16:20,943 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 10:16:20,943 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 10:16:20,943 INFO L87 Difference]: Start difference. First operand 128 states and 136 transitions. Second operand has 4 states, 3 states have (on average 17.666666666666668) internal successors, (53), 4 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:16:20,968 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:16:20,969 INFO L93 Difference]: Finished difference Result 128 states and 136 transitions. [2022-10-16 10:16:20,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 10:16:20,969 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 17.666666666666668) internal successors, (53), 4 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 125 [2022-10-16 10:16:20,970 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:16:20,971 INFO L225 Difference]: With dead ends: 128 [2022-10-16 10:16:20,971 INFO L226 Difference]: Without dead ends: 127 [2022-10-16 10:16:20,972 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-16 10:16:20,973 INFO L413 NwaCegarLoop]: 44 mSDtfsCounter, 5 mSDsluCounter, 83 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 127 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 10:16:20,973 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 127 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 10:16:20,974 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127 states. [2022-10-16 10:16:20,984 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 127 to 127. [2022-10-16 10:16:20,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 127 states, 126 states have (on average 1.0714285714285714) internal successors, (135), 126 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:16:20,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 127 states and 135 transitions. [2022-10-16 10:16:20,986 INFO L78 Accepts]: Start accepts. Automaton has 127 states and 135 transitions. Word has length 125 [2022-10-16 10:16:20,987 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:16:20,987 INFO L495 AbstractCegarLoop]: Abstraction has 127 states and 135 transitions. [2022-10-16 10:16:20,987 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 17.666666666666668) internal successors, (53), 4 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:16:20,988 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 135 transitions. [2022-10-16 10:16:20,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2022-10-16 10:16:20,990 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:16:20,990 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:16:20,990 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-10-16 10:16:20,990 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2022-10-16 10:16:20,991 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:16:20,991 INFO L85 PathProgramCache]: Analyzing trace with hash 1946626536, now seen corresponding path program 1 times [2022-10-16 10:16:20,991 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:16:20,991 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [72362323] [2022-10-16 10:16:20,992 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:16:20,992 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:16:21,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:16:21,255 INFO L134 CoverageAnalysis]: Checked inductivity of 182 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 160 trivial. 0 not checked. [2022-10-16 10:16:21,255 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:16:21,256 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [72362323] [2022-10-16 10:16:21,256 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [72362323] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:16:21,256 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1269831411] [2022-10-16 10:16:21,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:16:21,257 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:16:21,257 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:16:21,258 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 10:16:21,285 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-10-16 10:16:21,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:16:21,396 INFO L263 TraceCheckSpWp]: Trace formula consists of 375 conjuncts, 6 conjunts are in the unsatisfiable core [2022-10-16 10:16:21,401 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:16:21,441 INFO L134 CoverageAnalysis]: Checked inductivity of 182 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 160 trivial. 0 not checked. [2022-10-16 10:16:21,441 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 10:16:21,521 INFO L134 CoverageAnalysis]: Checked inductivity of 182 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 160 trivial. 0 not checked. [2022-10-16 10:16:21,521 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1269831411] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 10:16:21,522 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 10:16:21,522 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 13 [2022-10-16 10:16:21,522 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [503588010] [2022-10-16 10:16:21,523 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 10:16:21,524 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-10-16 10:16:21,524 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:16:21,525 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-10-16 10:16:21,525 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2022-10-16 10:16:21,525 INFO L87 Difference]: Start difference. First operand 127 states and 135 transitions. Second operand has 13 states, 13 states have (on average 5.846153846153846) internal successors, (76), 13 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:16:21,948 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:16:21,949 INFO L93 Difference]: Finished difference Result 383 states and 446 transitions. [2022-10-16 10:16:21,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-10-16 10:16:21,950 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 5.846153846153846) internal successors, (76), 13 states have internal predecessors, (76), 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 126 [2022-10-16 10:16:21,950 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:16:21,951 INFO L225 Difference]: With dead ends: 383 [2022-10-16 10:16:21,952 INFO L226 Difference]: Without dead ends: 271 [2022-10-16 10:16:21,953 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 257 GetRequests, 246 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2022-10-16 10:16:21,954 INFO L413 NwaCegarLoop]: 25 mSDtfsCounter, 314 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 288 mSolverCounterSat, 205 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 314 SdHoareTripleChecker+Valid, 43 SdHoareTripleChecker+Invalid, 493 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 205 IncrementalHoareTripleChecker+Valid, 288 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-10-16 10:16:21,954 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [314 Valid, 43 Invalid, 493 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [205 Valid, 288 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-10-16 10:16:21,955 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 271 states. [2022-10-16 10:16:21,972 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 271 to 271. [2022-10-16 10:16:21,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 271 states, 270 states have (on average 1.0333333333333334) internal successors, (279), 270 states have internal predecessors, (279), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:16:21,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 271 states to 271 states and 279 transitions. [2022-10-16 10:16:21,975 INFO L78 Accepts]: Start accepts. Automaton has 271 states and 279 transitions. Word has length 126 [2022-10-16 10:16:21,975 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:16:21,975 INFO L495 AbstractCegarLoop]: Abstraction has 271 states and 279 transitions. [2022-10-16 10:16:21,976 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 5.846153846153846) internal successors, (76), 13 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:16:21,976 INFO L276 IsEmpty]: Start isEmpty. Operand 271 states and 279 transitions. [2022-10-16 10:16:21,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 271 [2022-10-16 10:16:21,980 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:16:21,980 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:16:22,016 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-10-16 10:16:22,195 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:16:22,196 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2022-10-16 10:16:22,197 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:16:22,197 INFO L85 PathProgramCache]: Analyzing trace with hash 285149800, now seen corresponding path program 2 times [2022-10-16 10:16:22,198 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:16:22,198 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1909544308] [2022-10-16 10:16:22,198 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:16:22,199 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:16:22,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:16:23,172 INFO L134 CoverageAnalysis]: Checked inductivity of 1166 backedges. 0 proven. 145 refuted. 0 times theorem prover too weak. 1021 trivial. 0 not checked. [2022-10-16 10:16:23,174 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:16:23,175 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1909544308] [2022-10-16 10:16:23,175 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1909544308] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:16:23,175 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1085274806] [2022-10-16 10:16:23,175 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-16 10:16:23,175 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:16:23,176 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:16:23,179 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 10:16:23,189 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-10-16 10:16:23,432 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-10-16 10:16:23,433 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 10:16:23,438 INFO L263 TraceCheckSpWp]: Trace formula consists of 807 conjuncts, 12 conjunts are in the unsatisfiable core [2022-10-16 10:16:23,461 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:16:23,557 INFO L134 CoverageAnalysis]: Checked inductivity of 1166 backedges. 0 proven. 145 refuted. 0 times theorem prover too weak. 1021 trivial. 0 not checked. [2022-10-16 10:16:23,557 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 10:16:23,798 INFO L134 CoverageAnalysis]: Checked inductivity of 1166 backedges. 0 proven. 145 refuted. 0 times theorem prover too weak. 1021 trivial. 0 not checked. [2022-10-16 10:16:23,798 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1085274806] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 10:16:23,799 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 10:16:23,800 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13, 13] total 25 [2022-10-16 10:16:23,800 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1936902992] [2022-10-16 10:16:23,800 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 10:16:23,801 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-10-16 10:16:23,804 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:16:23,804 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-10-16 10:16:23,805 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=300, Invalid=300, Unknown=0, NotChecked=0, Total=600 [2022-10-16 10:16:23,805 INFO L87 Difference]: Start difference. First operand 271 states and 279 transitions. Second operand has 25 states, 25 states have (on average 4.48) internal successors, (112), 25 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:16:24,788 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:16:24,788 INFO L93 Difference]: Finished difference Result 797 states and 908 transitions. [2022-10-16 10:16:24,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-10-16 10:16:24,789 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 4.48) internal successors, (112), 25 states have internal predecessors, (112), 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 270 [2022-10-16 10:16:24,789 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:16:24,792 INFO L225 Difference]: With dead ends: 797 [2022-10-16 10:16:24,792 INFO L226 Difference]: Without dead ends: 559 [2022-10-16 10:16:24,794 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 551 GetRequests, 528 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=300, Invalid=300, Unknown=0, NotChecked=0, Total=600 [2022-10-16 10:16:24,795 INFO L413 NwaCegarLoop]: 25 mSDtfsCounter, 1018 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 568 mSolverCounterSat, 583 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1018 SdHoareTripleChecker+Valid, 34 SdHoareTripleChecker+Invalid, 1151 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 583 IncrementalHoareTripleChecker+Valid, 568 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-10-16 10:16:24,795 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1018 Valid, 34 Invalid, 1151 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [583 Valid, 568 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-10-16 10:16:24,796 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 559 states. [2022-10-16 10:16:24,821 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 559 to 559. [2022-10-16 10:16:24,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 559 states, 558 states have (on average 1.0161290322580645) internal successors, (567), 558 states have internal predecessors, (567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:16:24,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 559 states to 559 states and 567 transitions. [2022-10-16 10:16:24,825 INFO L78 Accepts]: Start accepts. Automaton has 559 states and 567 transitions. Word has length 270 [2022-10-16 10:16:24,825 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:16:24,825 INFO L495 AbstractCegarLoop]: Abstraction has 559 states and 567 transitions. [2022-10-16 10:16:24,825 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 4.48) internal successors, (112), 25 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:16:24,826 INFO L276 IsEmpty]: Start isEmpty. Operand 559 states and 567 transitions. [2022-10-16 10:16:24,837 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 559 [2022-10-16 10:16:24,837 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:16:24,838 INFO L195 NwaCegarLoop]: trace histogram [22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:16:24,877 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-10-16 10:16:25,051 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:16:25,052 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2022-10-16 10:16:25,053 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:16:25,053 INFO L85 PathProgramCache]: Analyzing trace with hash -1560007832, now seen corresponding path program 3 times [2022-10-16 10:16:25,054 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:16:25,054 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1352262616] [2022-10-16 10:16:25,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:16:25,055 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:16:25,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:16:28,412 INFO L134 CoverageAnalysis]: Checked inductivity of 5726 backedges. 0 proven. 715 refuted. 0 times theorem prover too weak. 5011 trivial. 0 not checked. [2022-10-16 10:16:28,412 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:16:28,413 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1352262616] [2022-10-16 10:16:28,413 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1352262616] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:16:28,413 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [685239490] [2022-10-16 10:16:28,413 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-10-16 10:16:28,414 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:16:28,414 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:16:28,416 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 10:16:28,424 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-10-16 10:16:28,625 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-10-16 10:16:28,626 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 10:16:28,627 INFO L263 TraceCheckSpWp]: Trace formula consists of 159 conjuncts, 4 conjunts are in the unsatisfiable core [2022-10-16 10:16:28,636 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:16:28,703 INFO L134 CoverageAnalysis]: Checked inductivity of 5726 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 5720 trivial. 0 not checked. [2022-10-16 10:16:28,703 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 10:16:28,703 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [685239490] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 10:16:28,704 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 10:16:28,704 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [25] total 27 [2022-10-16 10:16:28,704 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [489527489] [2022-10-16 10:16:28,704 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 10:16:28,705 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 10:16:28,705 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:16:28,706 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 10:16:28,706 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=304, Invalid=398, Unknown=0, NotChecked=0, Total=702 [2022-10-16 10:16:28,707 INFO L87 Difference]: Start difference. First operand 559 states and 567 transitions. Second operand has 4 states, 3 states have (on average 18.0) internal successors, (54), 4 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:16:28,746 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:16:28,746 INFO L93 Difference]: Finished difference Result 559 states and 567 transitions. [2022-10-16 10:16:28,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 10:16:28,747 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 18.0) internal successors, (54), 4 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 558 [2022-10-16 10:16:28,749 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:16:28,749 INFO L225 Difference]: With dead ends: 559 [2022-10-16 10:16:28,749 INFO L226 Difference]: Without dead ends: 0 [2022-10-16 10:16:28,751 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 583 GetRequests, 557 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=308, Invalid=448, Unknown=0, NotChecked=0, Total=756 [2022-10-16 10:16:28,751 INFO L413 NwaCegarLoop]: 44 mSDtfsCounter, 2 mSDsluCounter, 83 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 127 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 10:16:28,752 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 127 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 10:16:28,753 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-10-16 10:16:28,753 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-10-16 10:16:28,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:16:28,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-10-16 10:16:28,753 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 558 [2022-10-16 10:16:28,754 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:16:28,754 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-10-16 10:16:28,754 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 18.0) internal successors, (54), 4 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:16:28,754 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-10-16 10:16:28,754 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-10-16 10:16:28,757 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 18 remaining) [2022-10-16 10:16:28,758 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 18 remaining) [2022-10-16 10:16:28,758 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 18 remaining) [2022-10-16 10:16:28,758 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 18 remaining) [2022-10-16 10:16:28,759 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 18 remaining) [2022-10-16 10:16:28,759 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 18 remaining) [2022-10-16 10:16:28,759 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 18 remaining) [2022-10-16 10:16:28,759 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 18 remaining) [2022-10-16 10:16:28,759 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 18 remaining) [2022-10-16 10:16:28,760 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 18 remaining) [2022-10-16 10:16:28,760 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 18 remaining) [2022-10-16 10:16:28,760 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 18 remaining) [2022-10-16 10:16:28,760 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 18 remaining) [2022-10-16 10:16:28,760 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 18 remaining) [2022-10-16 10:16:28,761 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 18 remaining) [2022-10-16 10:16:28,761 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 18 remaining) [2022-10-16 10:16:28,761 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 18 remaining) [2022-10-16 10:16:28,761 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 18 remaining) [2022-10-16 10:16:28,804 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-10-16 10:16:28,975 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:16:28,978 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-10-16 10:16:29,116 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 24) no Hoare annotation was computed. [2022-10-16 10:16:29,116 INFO L902 garLoopResultBuilder]: At program point L60(lines 14 61) the Hoare annotation is: true [2022-10-16 10:16:29,116 INFO L895 garLoopResultBuilder]: At program point L27-2(lines 27 30) the Hoare annotation is: (or (= |ULTIMATE.start_main_~i~0#1| 0) (<= 1 |ULTIMATE.start_main_~i~0#1|)) [2022-10-16 10:16:29,117 INFO L899 garLoopResultBuilder]: For program point L27-3(lines 27 30) no Hoare annotation was computed. [2022-10-16 10:16:29,117 INFO L899 garLoopResultBuilder]: For program point L19(line 19) no Hoare annotation was computed. [2022-10-16 10:16:29,117 INFO L899 garLoopResultBuilder]: For program point L19-1(line 19) no Hoare annotation was computed. [2022-10-16 10:16:29,117 INFO L895 garLoopResultBuilder]: At program point L52-2(lines 52 55) the Hoare annotation is: (or (= |ULTIMATE.start_main_~i~0#1| 0) (<= 1 |ULTIMATE.start_main_~i~0#1|)) [2022-10-16 10:16:29,117 INFO L899 garLoopResultBuilder]: For program point L52-3(lines 52 55) no Hoare annotation was computed. [2022-10-16 10:16:29,117 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW(line 54) no Hoare annotation was computed. [2022-10-16 10:16:29,118 INFO L899 garLoopResultBuilder]: For program point L44(line 44) no Hoare annotation was computed. [2022-10-16 10:16:29,118 INFO L899 garLoopResultBuilder]: For program point L44-1(line 44) no Hoare annotation was computed. [2022-10-16 10:16:29,118 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW(line 34) no Hoare annotation was computed. [2022-10-16 10:16:29,118 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 19) no Hoare annotation was computed. [2022-10-16 10:16:29,118 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-10-16 10:16:29,118 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-10-16 10:16:29,118 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW(line 57) no Hoare annotation was computed. [2022-10-16 10:16:29,119 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW(line 39) no Hoare annotation was computed. [2022-10-16 10:16:29,119 INFO L895 garLoopResultBuilder]: At program point L37-2(lines 37 40) the Hoare annotation is: (or (= |ULTIMATE.start_main_~i~0#1| 0) (<= 1 |ULTIMATE.start_main_~i~0#1|)) [2022-10-16 10:16:29,119 INFO L899 garLoopResultBuilder]: For program point L37-3(lines 37 40) no Hoare annotation was computed. [2022-10-16 10:16:29,119 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 19) no Hoare annotation was computed. [2022-10-16 10:16:29,119 INFO L899 garLoopResultBuilder]: For program point L29(line 29) no Hoare annotation was computed. [2022-10-16 10:16:29,119 INFO L899 garLoopResultBuilder]: For program point L29-1(line 29) no Hoare annotation was computed. [2022-10-16 10:16:29,120 INFO L899 garLoopResultBuilder]: For program point L54(line 54) no Hoare annotation was computed. [2022-10-16 10:16:29,120 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW(line 57) no Hoare annotation was computed. [2022-10-16 10:16:29,120 INFO L899 garLoopResultBuilder]: For program point L54-1(line 54) no Hoare annotation was computed. [2022-10-16 10:16:29,120 INFO L899 garLoopResultBuilder]: For program point L13(line 13) no Hoare annotation was computed. [2022-10-16 10:16:29,120 INFO L899 garLoopResultBuilder]: For program point L13-1(line 13) no Hoare annotation was computed. [2022-10-16 10:16:29,120 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW(line 39) no Hoare annotation was computed. [2022-10-16 10:16:29,121 INFO L899 garLoopResultBuilder]: For program point L13-3(line 13) no Hoare annotation was computed. [2022-10-16 10:16:29,121 INFO L895 garLoopResultBuilder]: At program point L22-2(lines 22 25) the Hoare annotation is: (or (= |ULTIMATE.start_main_~i~0#1| 0) (<= 1 |ULTIMATE.start_main_~i~0#1|)) [2022-10-16 10:16:29,121 INFO L899 garLoopResultBuilder]: For program point L22-3(lines 22 25) no Hoare annotation was computed. [2022-10-16 10:16:29,121 INFO L895 garLoopResultBuilder]: At program point L47-2(lines 47 50) the Hoare annotation is: (or (= |ULTIMATE.start_main_~i~0#1| 0) (<= 1 |ULTIMATE.start_main_~i~0#1|)) [2022-10-16 10:16:29,121 INFO L899 garLoopResultBuilder]: For program point L47-3(lines 47 50) no Hoare annotation was computed. [2022-10-16 10:16:29,121 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW(line 44) no Hoare annotation was computed. [2022-10-16 10:16:29,121 INFO L899 garLoopResultBuilder]: For program point L39(line 39) no Hoare annotation was computed. [2022-10-16 10:16:29,122 INFO L899 garLoopResultBuilder]: For program point L39-1(line 39) no Hoare annotation was computed. [2022-10-16 10:16:29,122 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW(line 44) no Hoare annotation was computed. [2022-10-16 10:16:29,122 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-10-16 10:16:29,122 INFO L895 garLoopResultBuilder]: At program point L32-2(lines 32 35) the Hoare annotation is: (or (= |ULTIMATE.start_main_~i~0#1| 0) (<= 1 |ULTIMATE.start_main_~i~0#1|)) [2022-10-16 10:16:29,122 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW(line 29) no Hoare annotation was computed. [2022-10-16 10:16:29,122 INFO L899 garLoopResultBuilder]: For program point L32-3(lines 32 35) no Hoare annotation was computed. [2022-10-16 10:16:29,123 INFO L899 garLoopResultBuilder]: For program point L24(line 24) no Hoare annotation was computed. [2022-10-16 10:16:29,123 INFO L899 garLoopResultBuilder]: For program point L24-1(line 24) no Hoare annotation was computed. [2022-10-16 10:16:29,123 INFO L899 garLoopResultBuilder]: For program point L57-2(lines 57 59) no Hoare annotation was computed. [2022-10-16 10:16:29,123 INFO L899 garLoopResultBuilder]: For program point L57-3(line 57) no Hoare annotation was computed. [2022-10-16 10:16:29,123 INFO L899 garLoopResultBuilder]: For program point L57-4(line 57) no Hoare annotation was computed. [2022-10-16 10:16:29,123 INFO L895 garLoopResultBuilder]: At program point L57-5(lines 57 59) the Hoare annotation is: (and (<= 1 |ULTIMATE.start_main_~i~0#1|) (<= 0 (+ |ULTIMATE.start_main_~x~0#1| 2147483648))) [2022-10-16 10:16:29,124 INFO L899 garLoopResultBuilder]: For program point L57-6(lines 57 59) no Hoare annotation was computed. [2022-10-16 10:16:29,124 INFO L899 garLoopResultBuilder]: For program point L49(line 49) no Hoare annotation was computed. [2022-10-16 10:16:29,124 INFO L899 garLoopResultBuilder]: For program point L49-1(line 49) no Hoare annotation was computed. [2022-10-16 10:16:29,124 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW(line 49) no Hoare annotation was computed. [2022-10-16 10:16:29,124 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-10-16 10:16:29,124 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW(line 29) no Hoare annotation was computed. [2022-10-16 10:16:29,124 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW(line 49) no Hoare annotation was computed. [2022-10-16 10:16:29,125 INFO L895 garLoopResultBuilder]: At program point L17-2(lines 17 20) the Hoare annotation is: (or (= |ULTIMATE.start_main_~i~0#1| 0) (<= 1 |ULTIMATE.start_main_~i~0#1|)) [2022-10-16 10:16:29,125 INFO L899 garLoopResultBuilder]: For program point L17-3(lines 17 20) no Hoare annotation was computed. [2022-10-16 10:16:29,125 INFO L895 garLoopResultBuilder]: At program point L42-2(lines 42 45) the Hoare annotation is: (or (= |ULTIMATE.start_main_~i~0#1| 0) (<= 1 |ULTIMATE.start_main_~i~0#1|)) [2022-10-16 10:16:29,125 INFO L899 garLoopResultBuilder]: For program point L42-3(lines 42 45) no Hoare annotation was computed. [2022-10-16 10:16:29,125 INFO L899 garLoopResultBuilder]: For program point L34(line 34) no Hoare annotation was computed. [2022-10-16 10:16:29,125 INFO L899 garLoopResultBuilder]: For program point L34-1(line 34) no Hoare annotation was computed. [2022-10-16 10:16:29,125 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 24) no Hoare annotation was computed. [2022-10-16 10:16:29,126 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW(line 54) no Hoare annotation was computed. [2022-10-16 10:16:29,126 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW(line 34) no Hoare annotation was computed. [2022-10-16 10:16:29,130 INFO L444 BasicCegarLoop]: Path program histogram: [3, 2, 1, 1, 1, 1] [2022-10-16 10:16:29,132 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-10-16 10:16:29,151 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.10 10:16:29 BoogieIcfgContainer [2022-10-16 10:16:29,151 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-10-16 10:16:29,152 INFO L158 Benchmark]: Toolchain (without parser) took 12296.49ms. Allocated memory was 151.0MB in the beginning and 262.1MB in the end (delta: 111.1MB). Free memory was 130.9MB in the beginning and 91.8MB in the end (delta: 39.1MB). Peak memory consumption was 150.4MB. Max. memory is 8.0GB. [2022-10-16 10:16:29,153 INFO L158 Benchmark]: CDTParser took 0.22ms. Allocated memory is still 151.0MB. Free memory was 121.1MB in the beginning and 121.0MB in the end (delta: 84.2kB). There was no memory consumed. Max. memory is 8.0GB. [2022-10-16 10:16:29,153 INFO L158 Benchmark]: CACSL2BoogieTranslator took 317.30ms. Allocated memory is still 151.0MB. Free memory was 130.7MB in the beginning and 120.8MB in the end (delta: 10.0MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. [2022-10-16 10:16:29,153 INFO L158 Benchmark]: Boogie Procedure Inliner took 75.52ms. Allocated memory is still 151.0MB. Free memory was 120.8MB in the beginning and 119.0MB in the end (delta: 1.8MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-10-16 10:16:29,154 INFO L158 Benchmark]: Boogie Preprocessor took 93.82ms. Allocated memory is still 151.0MB. Free memory was 119.0MB in the beginning and 133.4MB in the end (delta: -14.4MB). Peak memory consumption was 4.1MB. Max. memory is 8.0GB. [2022-10-16 10:16:29,154 INFO L158 Benchmark]: RCFGBuilder took 478.23ms. Allocated memory is still 151.0MB. Free memory was 133.1MB in the beginning and 120.3MB in the end (delta: 12.8MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. [2022-10-16 10:16:29,155 INFO L158 Benchmark]: TraceAbstraction took 11318.08ms. Allocated memory was 151.0MB in the beginning and 262.1MB in the end (delta: 111.1MB). Free memory was 119.7MB in the beginning and 91.8MB in the end (delta: 27.9MB). Peak memory consumption was 140.0MB. Max. memory is 8.0GB. [2022-10-16 10:16:29,157 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22ms. Allocated memory is still 151.0MB. Free memory was 121.1MB in the beginning and 121.0MB in the end (delta: 84.2kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 317.30ms. Allocated memory is still 151.0MB. Free memory was 130.7MB in the beginning and 120.8MB in the end (delta: 10.0MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 75.52ms. Allocated memory is still 151.0MB. Free memory was 120.8MB in the beginning and 119.0MB in the end (delta: 1.8MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * Boogie Preprocessor took 93.82ms. Allocated memory is still 151.0MB. Free memory was 119.0MB in the beginning and 133.4MB in the end (delta: -14.4MB). Peak memory consumption was 4.1MB. Max. memory is 8.0GB. * RCFGBuilder took 478.23ms. Allocated memory is still 151.0MB. Free memory was 133.1MB in the beginning and 120.3MB in the end (delta: 12.8MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. * TraceAbstraction took 11318.08ms. Allocated memory was 151.0MB in the beginning and 262.1MB in the end (delta: 111.1MB). Free memory was 119.7MB in the beginning and 91.8MB in the end (delta: 27.9MB). Peak memory consumption was 140.0MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 19]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 19]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 24]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 24]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 29]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 29]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 34]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 34]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 39]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 39]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 44]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 44]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 49]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 49]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 54]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 54]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 57]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 57]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 63 locations, 18 error locations. Started 1 CEGAR loops. OverallTime: 11.2s, OverallIterations: 9, TraceHistogramMax: 22, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 2.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1521 SdHoareTripleChecker+Valid, 1.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1521 mSDsluCounter, 629 SdHoareTripleChecker+Invalid, 1.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 328 mSDsCounter, 940 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1233 IncrementalHoareTripleChecker+Invalid, 2173 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 940 mSolverCounterUnsat, 301 mSDtfsCounter, 1233 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1510 GetRequests, 1434 SyntacticMatches, 0 SemanticMatches, 76 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 104 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=559occurred in iteration=8, InterpolantAutomatonStates: 64, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 9 MinimizatonAttempts, 16 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 10 LocationsWithAnnotation, 10 PreInvPairs, 196 NumberOfFragments, 66 HoareAnnotationTreeSize, 10 FomulaSimplifications, 1408 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 10 FomulaSimplificationsInter, 8 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 5.7s InterpolantComputationTime, 2273 NumberOfCodeBlocks, 1769 NumberOfCodeBlocksAsserted, 16 NumberOfCheckSat, 2699 ConstructedInterpolants, 0 QuantifiedInterpolants, 3193 SizeOfPredicates, 1 NumberOfNonLiveVariables, 1535 ConjunctsInSsa, 28 ConjunctsInUnsatCore, 17 InterpolantComputations, 6 PerfectInterpolantSequences, 14663/15885 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 18 specifications checked. All of them hold - InvariantResult [Line: 32]: Loop Invariant Derived loop invariant: i == 0 || 1 <= i - InvariantResult [Line: 17]: Loop Invariant Derived loop invariant: i == 0 || 1 <= i - InvariantResult [Line: 37]: Loop Invariant Derived loop invariant: i == 0 || 1 <= i - InvariantResult [Line: 52]: Loop Invariant Derived loop invariant: i == 0 || 1 <= i - InvariantResult [Line: 14]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 57]: Loop Invariant Derived loop invariant: 1 <= i && 0 <= x + 2147483648 - InvariantResult [Line: 42]: Loop Invariant Derived loop invariant: i == 0 || 1 <= i - InvariantResult [Line: 47]: Loop Invariant Derived loop invariant: i == 0 || 1 <= i - InvariantResult [Line: 22]: Loop Invariant Derived loop invariant: i == 0 || 1 <= i - InvariantResult [Line: 27]: Loop Invariant Derived loop invariant: i == 0 || 1 <= i RESULT: Ultimate proved your program to be correct! [2022-10-16 10:16:29,213 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...