/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/list-ext-properties/list-ext.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-05d3305-m [2022-10-16 14:10:36,333 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-16 14:10:36,336 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-16 14:10:36,371 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-16 14:10:36,372 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-16 14:10:36,374 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-16 14:10:36,375 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-16 14:10:36,396 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-16 14:10:36,398 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-16 14:10:36,399 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-16 14:10:36,400 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-16 14:10:36,402 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-16 14:10:36,402 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-16 14:10:36,403 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-16 14:10:36,405 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-16 14:10:36,406 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-16 14:10:36,407 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-16 14:10:36,408 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-16 14:10:36,410 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-16 14:10:36,412 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-16 14:10:36,414 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-16 14:10:36,416 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-16 14:10:36,417 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-16 14:10:36,418 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-16 14:10:36,426 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-16 14:10:36,426 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-16 14:10:36,427 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-16 14:10:36,428 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-16 14:10:36,428 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-16 14:10:36,429 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-16 14:10:36,435 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-16 14:10:36,436 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-16 14:10:36,437 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-16 14:10:36,438 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-16 14:10:36,440 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-16 14:10:36,440 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-16 14:10:36,441 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-16 14:10:36,441 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-16 14:10:36,441 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-16 14:10:36,443 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-16 14:10:36,443 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-16 14:10:36,445 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 14:10:36,471 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-16 14:10:36,472 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-16 14:10:36,472 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-16 14:10:36,472 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-16 14:10:36,473 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-16 14:10:36,473 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-16 14:10:36,474 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-16 14:10:36,474 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-16 14:10:36,475 INFO L138 SettingsManager]: * Use SBE=true [2022-10-16 14:10:36,475 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-16 14:10:36,475 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-16 14:10:36,475 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-16 14:10:36,476 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-16 14:10:36,476 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-16 14:10:36,476 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-16 14:10:36,477 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-16 14:10:36,477 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-16 14:10:36,477 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-16 14:10:36,477 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-10-16 14:10:36,478 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-16 14:10:36,478 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-16 14:10:36,478 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-16 14:10:36,478 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-16 14:10:36,479 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-16 14:10:36,479 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-16 14:10:36,479 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-16 14:10:36,479 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 14:10:36,480 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-16 14:10:36,480 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-16 14:10:36,480 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-16 14:10:36,481 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-16 14:10:36,481 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-16 14:10:36,481 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-16 14:10:36,481 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-10-16 14:10:36,874 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-16 14:10:36,905 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-16 14:10:36,908 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-16 14:10:36,910 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-16 14:10:36,911 INFO L275 PluginConnector]: CDTParser initialized [2022-10-16 14:10:36,912 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/list-ext-properties/list-ext.i [2022-10-16 14:10:36,985 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/310029e4a/c59b2d5b5ae949f4b1e5b0a6e7306a58/FLAG8f3ebc064 [2022-10-16 14:10:37,608 INFO L306 CDTParser]: Found 1 translation units. [2022-10-16 14:10:37,609 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/list-ext-properties/list-ext.i [2022-10-16 14:10:37,623 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/310029e4a/c59b2d5b5ae949f4b1e5b0a6e7306a58/FLAG8f3ebc064 [2022-10-16 14:10:37,903 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/310029e4a/c59b2d5b5ae949f4b1e5b0a6e7306a58 [2022-10-16 14:10:37,906 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-16 14:10:37,912 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-10-16 14:10:37,913 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-16 14:10:37,914 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-16 14:10:37,917 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-16 14:10:37,918 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 02:10:37" (1/1) ... [2022-10-16 14:10:37,920 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@38df489e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:10:37, skipping insertion in model container [2022-10-16 14:10:37,920 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 02:10:37" (1/1) ... [2022-10-16 14:10:37,930 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-16 14:10:37,967 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-16 14:10:38,339 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/list-ext-properties/list-ext.i[23551,23564] [2022-10-16 14:10:38,348 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 14:10:38,358 INFO L203 MainTranslator]: Completed pre-run [2022-10-16 14:10:38,408 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/list-ext-properties/list-ext.i[23551,23564] [2022-10-16 14:10:38,413 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 14:10:38,451 INFO L208 MainTranslator]: Completed translation [2022-10-16 14:10:38,451 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:10:38 WrapperNode [2022-10-16 14:10:38,452 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-16 14:10:38,453 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-16 14:10:38,453 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-16 14:10:38,453 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-16 14:10:38,461 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:10:38" (1/1) ... [2022-10-16 14:10:38,478 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:10:38" (1/1) ... [2022-10-16 14:10:38,505 INFO L138 Inliner]: procedures = 124, calls = 29, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 137 [2022-10-16 14:10:38,506 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-16 14:10:38,507 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-16 14:10:38,507 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-16 14:10:38,507 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-16 14:10:38,518 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:10:38" (1/1) ... [2022-10-16 14:10:38,518 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:10:38" (1/1) ... [2022-10-16 14:10:38,523 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:10:38" (1/1) ... [2022-10-16 14:10:38,523 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:10:38" (1/1) ... [2022-10-16 14:10:38,536 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:10:38" (1/1) ... [2022-10-16 14:10:38,545 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:10:38" (1/1) ... [2022-10-16 14:10:38,552 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:10:38" (1/1) ... [2022-10-16 14:10:38,553 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:10:38" (1/1) ... [2022-10-16 14:10:38,562 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-16 14:10:38,563 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-16 14:10:38,563 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-16 14:10:38,563 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-16 14:10:38,564 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:10:38" (1/1) ... [2022-10-16 14:10:38,571 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 14:10:38,583 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:10:38,602 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 14:10:38,619 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 14:10:38,675 INFO L130 BoogieDeclarations]: Found specification of procedure myexit [2022-10-16 14:10:38,676 INFO L138 BoogieDeclarations]: Found implementation of procedure myexit [2022-10-16 14:10:38,676 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-10-16 14:10:38,677 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-10-16 14:10:38,677 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-10-16 14:10:38,678 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-16 14:10:38,678 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-10-16 14:10:38,680 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-10-16 14:10:38,684 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-10-16 14:10:38,685 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-16 14:10:38,685 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-16 14:10:38,685 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-16 14:10:38,815 INFO L235 CfgBuilder]: Building ICFG [2022-10-16 14:10:38,820 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-16 14:10:38,901 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint myexitFINAL: assume true; [2022-10-16 14:10:39,327 INFO L276 CfgBuilder]: Performing block encoding [2022-10-16 14:10:39,343 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-16 14:10:39,344 INFO L300 CfgBuilder]: Removed 5 assume(true) statements. [2022-10-16 14:10:39,348 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 02:10:39 BoogieIcfgContainer [2022-10-16 14:10:39,348 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-16 14:10:39,352 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-16 14:10:39,352 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-16 14:10:39,359 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-16 14:10:39,359 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 02:10:37" (1/3) ... [2022-10-16 14:10:39,360 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@44056aa6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 02:10:39, skipping insertion in model container [2022-10-16 14:10:39,360 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:10:38" (2/3) ... [2022-10-16 14:10:39,361 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@44056aa6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 02:10:39, skipping insertion in model container [2022-10-16 14:10:39,361 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 02:10:39" (3/3) ... [2022-10-16 14:10:39,362 INFO L112 eAbstractionObserver]: Analyzing ICFG list-ext.i [2022-10-16 14:10:39,389 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-16 14:10:39,389 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 10 error locations. [2022-10-16 14:10:39,478 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-16 14:10:39,492 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;@10df17ad, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-16 14:10:39,493 INFO L358 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2022-10-16 14:10:39,504 INFO L276 IsEmpty]: Start isEmpty. Operand has 55 states, 41 states have (on average 1.6585365853658536) internal successors, (68), 53 states have internal predecessors, (68), 3 states have call successors, (3), 1 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:10:39,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-10-16 14:10:39,523 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:10:39,523 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:10:39,525 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-16 14:10:39,532 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:10:39,533 INFO L85 PathProgramCache]: Analyzing trace with hash 620871785, now seen corresponding path program 1 times [2022-10-16 14:10:39,544 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:10:39,545 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [939649790] [2022-10-16 14:10:39,545 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:10:39,546 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:10:39,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:10:39,921 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 14:10:39,922 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:10:39,922 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [939649790] [2022-10-16 14:10:39,923 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [939649790] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:10:39,923 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 14:10:39,924 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 14:10:39,926 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1508591101] [2022-10-16 14:10:39,926 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:10:39,931 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 14:10:39,932 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:10:39,965 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 14:10:39,966 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 14:10:39,969 INFO L87 Difference]: Start difference. First operand has 55 states, 41 states have (on average 1.6585365853658536) internal successors, (68), 53 states have internal predecessors, (68), 3 states have call successors, (3), 1 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) 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 14:10:40,065 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:10:40,065 INFO L93 Difference]: Finished difference Result 140 states and 181 transitions. [2022-10-16 14:10:40,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 14:10:40,069 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 14:10:40,070 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:10:40,079 INFO L225 Difference]: With dead ends: 140 [2022-10-16 14:10:40,079 INFO L226 Difference]: Without dead ends: 74 [2022-10-16 14:10:40,083 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 14:10:40,088 INFO L413 NwaCegarLoop]: 56 mSDtfsCounter, 47 mSDsluCounter, 104 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 160 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 14:10:40,090 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 160 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 14:10:40,111 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2022-10-16 14:10:40,128 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 46. [2022-10-16 14:10:40,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46 states, 36 states have (on average 1.4722222222222223) internal successors, (53), 45 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 14:10:40,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 53 transitions. [2022-10-16 14:10:40,135 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 53 transitions. Word has length 8 [2022-10-16 14:10:40,135 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:10:40,135 INFO L495 AbstractCegarLoop]: Abstraction has 46 states and 53 transitions. [2022-10-16 14:10:40,136 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 14:10:40,136 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 53 transitions. [2022-10-16 14:10:40,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-10-16 14:10:40,137 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:10:40,137 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:10:40,137 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-16 14:10:40,137 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-16 14:10:40,139 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:10:40,140 INFO L85 PathProgramCache]: Analyzing trace with hash -2034054855, now seen corresponding path program 1 times [2022-10-16 14:10:40,140 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:10:40,140 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [425220843] [2022-10-16 14:10:40,141 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:10:40,141 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:10:40,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:10:40,263 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 14:10:40,264 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:10:40,264 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [425220843] [2022-10-16 14:10:40,264 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [425220843] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:10:40,265 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 14:10:40,265 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 14:10:40,265 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [26046961] [2022-10-16 14:10:40,265 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:10:40,267 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 14:10:40,267 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:10:40,268 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 14:10:40,268 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 14:10:40,268 INFO L87 Difference]: Start difference. First operand 46 states and 53 transitions. Second operand has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:10:40,322 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:10:40,323 INFO L93 Difference]: Finished difference Result 66 states and 75 transitions. [2022-10-16 14:10:40,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 14:10:40,323 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2022-10-16 14:10:40,324 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:10:40,325 INFO L225 Difference]: With dead ends: 66 [2022-10-16 14:10:40,325 INFO L226 Difference]: Without dead ends: 64 [2022-10-16 14:10:40,326 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 14:10:40,328 INFO L413 NwaCegarLoop]: 38 mSDtfsCounter, 31 mSDsluCounter, 51 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 89 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 14:10:40,328 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 89 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 14:10:40,330 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2022-10-16 14:10:40,340 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 51. [2022-10-16 14:10:40,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51 states, 41 states have (on average 1.4634146341463414) internal successors, (60), 50 states have internal predecessors, (60), 0 states have call successors, (0), 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 14:10:40,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 60 transitions. [2022-10-16 14:10:40,344 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 60 transitions. Word has length 11 [2022-10-16 14:10:40,344 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:10:40,345 INFO L495 AbstractCegarLoop]: Abstraction has 51 states and 60 transitions. [2022-10-16 14:10:40,345 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:10:40,345 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 60 transitions. [2022-10-16 14:10:40,346 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-10-16 14:10:40,346 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:10:40,347 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:10:40,347 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-16 14:10:40,348 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-16 14:10:40,348 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:10:40,352 INFO L85 PathProgramCache]: Analyzing trace with hash 1164075369, now seen corresponding path program 1 times [2022-10-16 14:10:40,352 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:10:40,352 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [592994907] [2022-10-16 14:10:40,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:10:40,353 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:10:40,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:10:40,474 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 14:10:40,474 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:10:40,475 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [592994907] [2022-10-16 14:10:40,475 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [592994907] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:10:40,475 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 14:10:40,476 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 14:10:40,476 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [570160592] [2022-10-16 14:10:40,476 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:10:40,477 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 14:10:40,477 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:10:40,478 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 14:10:40,478 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 14:10:40,478 INFO L87 Difference]: Start difference. First operand 51 states and 60 transitions. Second operand has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:10:40,537 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:10:40,538 INFO L93 Difference]: Finished difference Result 84 states and 98 transitions. [2022-10-16 14:10:40,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 14:10:40,539 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2022-10-16 14:10:40,539 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:10:40,540 INFO L225 Difference]: With dead ends: 84 [2022-10-16 14:10:40,540 INFO L226 Difference]: Without dead ends: 82 [2022-10-16 14:10:40,541 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 14:10:40,543 INFO L413 NwaCegarLoop]: 38 mSDtfsCounter, 35 mSDsluCounter, 69 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 107 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 14:10:40,543 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 107 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 14:10:40,545 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states. [2022-10-16 14:10:40,551 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 55. [2022-10-16 14:10:40,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55 states, 45 states have (on average 1.4444444444444444) internal successors, (65), 54 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:10:40,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 65 transitions. [2022-10-16 14:10:40,553 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 65 transitions. Word has length 14 [2022-10-16 14:10:40,554 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:10:40,554 INFO L495 AbstractCegarLoop]: Abstraction has 55 states and 65 transitions. [2022-10-16 14:10:40,554 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:10:40,554 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 65 transitions. [2022-10-16 14:10:40,555 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-10-16 14:10:40,555 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:10:40,556 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:10:40,556 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-10-16 14:10:40,556 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-16 14:10:40,557 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:10:40,557 INFO L85 PathProgramCache]: Analyzing trace with hash -795147265, now seen corresponding path program 1 times [2022-10-16 14:10:40,557 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:10:40,558 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [341832863] [2022-10-16 14:10:40,558 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:10:40,558 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:10:40,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:10:40,686 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-16 14:10:40,686 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:10:40,687 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [341832863] [2022-10-16 14:10:40,687 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [341832863] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:10:40,687 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 14:10:40,688 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-16 14:10:40,688 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1364462474] [2022-10-16 14:10:40,688 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:10:40,689 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-16 14:10:40,689 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:10:40,690 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-16 14:10:40,690 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-10-16 14:10:40,690 INFO L87 Difference]: Start difference. First operand 55 states and 65 transitions. Second operand has 5 states, 4 states have (on average 3.75) internal successors, (15), 5 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:10:40,744 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:10:40,744 INFO L93 Difference]: Finished difference Result 83 states and 98 transitions. [2022-10-16 14:10:40,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 14:10:40,745 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.75) internal successors, (15), 5 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2022-10-16 14:10:40,745 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:10:40,746 INFO L225 Difference]: With dead ends: 83 [2022-10-16 14:10:40,746 INFO L226 Difference]: Without dead ends: 82 [2022-10-16 14:10:40,747 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-10-16 14:10:40,749 INFO L413 NwaCegarLoop]: 36 mSDtfsCounter, 39 mSDsluCounter, 91 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 127 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 14:10:40,749 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 127 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 14:10:40,751 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states. [2022-10-16 14:10:40,756 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 54. [2022-10-16 14:10:40,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54 states, 45 states have (on average 1.4222222222222223) internal successors, (64), 53 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:10:40,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 64 transitions. [2022-10-16 14:10:40,758 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 64 transitions. Word has length 15 [2022-10-16 14:10:40,758 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:10:40,759 INFO L495 AbstractCegarLoop]: Abstraction has 54 states and 64 transitions. [2022-10-16 14:10:40,759 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.75) internal successors, (15), 5 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:10:40,759 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 64 transitions. [2022-10-16 14:10:40,760 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-10-16 14:10:40,760 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:10:40,760 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:10:40,761 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-10-16 14:10:40,761 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-16 14:10:40,762 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:10:40,762 INFO L85 PathProgramCache]: Analyzing trace with hash 1984885974, now seen corresponding path program 1 times [2022-10-16 14:10:40,762 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:10:40,762 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [477819970] [2022-10-16 14:10:40,763 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:10:40,763 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:10:40,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:10:41,034 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 14:10:41,035 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:10:41,035 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [477819970] [2022-10-16 14:10:41,036 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [477819970] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:10:41,036 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 14:10:41,036 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-16 14:10:41,036 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [763355321] [2022-10-16 14:10:41,037 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:10:41,037 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-16 14:10:41,037 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:10:41,040 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-16 14:10:41,040 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-16 14:10:41,041 INFO L87 Difference]: Start difference. First operand 54 states and 64 transitions. Second operand has 5 states, 5 states have (on average 3.2) internal successors, (16), 5 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:10:41,143 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:10:41,143 INFO L93 Difference]: Finished difference Result 100 states and 113 transitions. [2022-10-16 14:10:41,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 14:10:41,144 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.2) internal successors, (16), 5 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2022-10-16 14:10:41,144 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:10:41,147 INFO L225 Difference]: With dead ends: 100 [2022-10-16 14:10:41,147 INFO L226 Difference]: Without dead ends: 88 [2022-10-16 14:10:41,148 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-10-16 14:10:41,151 INFO L413 NwaCegarLoop]: 39 mSDtfsCounter, 43 mSDsluCounter, 112 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 151 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 55 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 14:10:41,154 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 151 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 14:10:41,157 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states. [2022-10-16 14:10:41,179 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 62. [2022-10-16 14:10:41,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62 states, 53 states have (on average 1.4150943396226414) internal successors, (75), 61 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:10:41,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 75 transitions. [2022-10-16 14:10:41,182 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 75 transitions. Word has length 16 [2022-10-16 14:10:41,185 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:10:41,185 INFO L495 AbstractCegarLoop]: Abstraction has 62 states and 75 transitions. [2022-10-16 14:10:41,185 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.2) internal successors, (16), 5 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:10:41,187 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 75 transitions. [2022-10-16 14:10:41,188 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-10-16 14:10:41,188 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:10:41,189 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:10:41,189 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-10-16 14:10:41,190 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-16 14:10:41,190 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:10:41,193 INFO L85 PathProgramCache]: Analyzing trace with hash 1120238626, now seen corresponding path program 1 times [2022-10-16 14:10:41,193 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:10:41,194 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1563778674] [2022-10-16 14:10:41,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:10:41,194 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:10:41,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:10:41,367 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:10:41,368 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:10:41,368 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1563778674] [2022-10-16 14:10:41,368 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1563778674] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:10:41,368 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1727538058] [2022-10-16 14:10:41,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:10:41,369 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:10:41,369 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:10:41,373 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 14:10:41,381 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 14:10:41,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:10:41,460 INFO L263 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-16 14:10:41,466 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:10:41,543 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:10:41,543 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 14:10:41,544 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1727538058] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:10:41,544 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 14:10:41,544 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2022-10-16 14:10:41,544 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1700782900] [2022-10-16 14:10:41,545 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:10:41,545 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-16 14:10:41,545 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:10:41,546 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-16 14:10:41,546 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-10-16 14:10:41,547 INFO L87 Difference]: Start difference. First operand 62 states and 75 transitions. Second operand has 6 states, 5 states have (on average 3.2) internal successors, (16), 6 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:10:41,613 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:10:41,614 INFO L93 Difference]: Finished difference Result 86 states and 101 transitions. [2022-10-16 14:10:41,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-16 14:10:41,614 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.2) internal successors, (16), 6 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2022-10-16 14:10:41,615 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:10:41,615 INFO L225 Difference]: With dead ends: 86 [2022-10-16 14:10:41,616 INFO L226 Difference]: Without dead ends: 85 [2022-10-16 14:10:41,616 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-10-16 14:10:41,617 INFO L413 NwaCegarLoop]: 56 mSDtfsCounter, 48 mSDsluCounter, 161 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 217 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 14:10:41,618 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 217 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 14:10:41,619 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2022-10-16 14:10:41,624 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 59. [2022-10-16 14:10:41,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59 states, 51 states have (on average 1.411764705882353) internal successors, (72), 58 states have internal predecessors, (72), 0 states have call successors, (0), 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 14:10:41,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 72 transitions. [2022-10-16 14:10:41,626 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 72 transitions. Word has length 16 [2022-10-16 14:10:41,626 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:10:41,627 INFO L495 AbstractCegarLoop]: Abstraction has 59 states and 72 transitions. [2022-10-16 14:10:41,627 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.2) internal successors, (16), 6 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:10:41,627 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 72 transitions. [2022-10-16 14:10:41,628 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-10-16 14:10:41,628 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:10:41,628 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:10:41,657 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-10-16 14:10:41,842 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2022-10-16 14:10:41,844 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-16 14:10:41,844 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:10:41,845 INFO L85 PathProgramCache]: Analyzing trace with hash 509892448, now seen corresponding path program 1 times [2022-10-16 14:10:41,845 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:10:41,845 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2112471712] [2022-10-16 14:10:41,846 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:10:41,846 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:10:41,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:10:41,907 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 14:10:41,908 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:10:41,908 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2112471712] [2022-10-16 14:10:41,908 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2112471712] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:10:41,909 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 14:10:41,909 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-16 14:10:41,909 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1509516096] [2022-10-16 14:10:41,909 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:10:41,910 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 14:10:41,910 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:10:41,911 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 14:10:41,911 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 14:10:41,911 INFO L87 Difference]: Start difference. First operand 59 states and 72 transitions. Second operand has 3 states, 2 states have (on average 9.0) internal successors, (18), 3 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:10:41,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:10:41,950 INFO L93 Difference]: Finished difference Result 75 states and 88 transitions. [2022-10-16 14:10:41,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 14:10:41,950 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 9.0) internal successors, (18), 3 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2022-10-16 14:10:41,951 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:10:41,951 INFO L225 Difference]: With dead ends: 75 [2022-10-16 14:10:41,951 INFO L226 Difference]: Without dead ends: 67 [2022-10-16 14:10:41,952 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 14:10:41,953 INFO L413 NwaCegarLoop]: 42 mSDtfsCounter, 21 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 69 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 14:10:41,953 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 69 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 14:10:41,954 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2022-10-16 14:10:41,959 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 59. [2022-10-16 14:10:41,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59 states, 51 states have (on average 1.392156862745098) internal successors, (71), 58 states have internal predecessors, (71), 0 states have call successors, (0), 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 14:10:41,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 71 transitions. [2022-10-16 14:10:41,961 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 71 transitions. Word has length 18 [2022-10-16 14:10:41,961 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:10:41,961 INFO L495 AbstractCegarLoop]: Abstraction has 59 states and 71 transitions. [2022-10-16 14:10:41,961 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 9.0) internal successors, (18), 3 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:10:41,962 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 71 transitions. [2022-10-16 14:10:41,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-10-16 14:10:41,962 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:10:41,963 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:10:41,963 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-10-16 14:10:41,963 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-16 14:10:41,964 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:10:41,964 INFO L85 PathProgramCache]: Analyzing trace with hash 558512354, now seen corresponding path program 1 times [2022-10-16 14:10:41,964 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:10:41,964 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1212939695] [2022-10-16 14:10:41,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:10:41,965 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:10:41,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:10:42,101 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-16 14:10:42,102 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:10:42,102 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1212939695] [2022-10-16 14:10:42,102 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1212939695] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:10:42,102 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 14:10:42,102 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-16 14:10:42,103 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2023119238] [2022-10-16 14:10:42,103 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:10:42,103 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-16 14:10:42,103 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:10:42,104 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-16 14:10:42,104 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-16 14:10:42,104 INFO L87 Difference]: Start difference. First operand 59 states and 71 transitions. Second operand has 5 states, 5 states have (on average 3.6) internal successors, (18), 5 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:10:42,176 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:10:42,176 INFO L93 Difference]: Finished difference Result 91 states and 104 transitions. [2022-10-16 14:10:42,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-16 14:10:42,177 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.6) internal successors, (18), 5 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2022-10-16 14:10:42,177 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:10:42,178 INFO L225 Difference]: With dead ends: 91 [2022-10-16 14:10:42,178 INFO L226 Difference]: Without dead ends: 68 [2022-10-16 14:10:42,178 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-10-16 14:10:42,179 INFO L413 NwaCegarLoop]: 35 mSDtfsCounter, 23 mSDsluCounter, 93 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 128 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 14:10:42,180 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 128 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 14:10:42,180 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2022-10-16 14:10:42,184 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 56. [2022-10-16 14:10:42,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56 states, 48 states have (on average 1.3958333333333333) internal successors, (67), 55 states have internal predecessors, (67), 0 states have call successors, (0), 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 14:10:42,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 67 transitions. [2022-10-16 14:10:42,185 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 67 transitions. Word has length 18 [2022-10-16 14:10:42,185 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:10:42,185 INFO L495 AbstractCegarLoop]: Abstraction has 56 states and 67 transitions. [2022-10-16 14:10:42,185 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.6) internal successors, (18), 5 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:10:42,186 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 67 transitions. [2022-10-16 14:10:42,186 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-10-16 14:10:42,186 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:10:42,187 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:10:42,187 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-10-16 14:10:42,187 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-16 14:10:42,187 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:10:42,188 INFO L85 PathProgramCache]: Analyzing trace with hash -67723763, now seen corresponding path program 1 times [2022-10-16 14:10:42,188 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:10:42,188 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1319576234] [2022-10-16 14:10:42,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:10:42,188 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:10:42,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:10:42,255 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-16 14:10:42,256 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:10:42,256 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1319576234] [2022-10-16 14:10:42,256 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1319576234] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:10:42,256 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 14:10:42,256 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-16 14:10:42,257 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1601353100] [2022-10-16 14:10:42,257 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:10:42,257 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-16 14:10:42,257 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:10:42,258 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-16 14:10:42,258 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-10-16 14:10:42,259 INFO L87 Difference]: Start difference. First operand 56 states and 67 transitions. Second operand has 5 states, 4 states have (on average 4.5) internal successors, (18), 5 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:10:42,296 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:10:42,296 INFO L93 Difference]: Finished difference Result 70 states and 82 transitions. [2022-10-16 14:10:42,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 14:10:42,297 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.5) internal successors, (18), 5 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2022-10-16 14:10:42,297 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:10:42,298 INFO L225 Difference]: With dead ends: 70 [2022-10-16 14:10:42,298 INFO L226 Difference]: Without dead ends: 69 [2022-10-16 14:10:42,298 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-10-16 14:10:42,299 INFO L413 NwaCegarLoop]: 40 mSDtfsCounter, 73 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 73 SdHoareTripleChecker+Valid, 89 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 14:10:42,299 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [73 Valid, 89 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 14:10:42,300 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2022-10-16 14:10:42,304 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 55. [2022-10-16 14:10:42,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55 states, 48 states have (on average 1.375) internal successors, (66), 54 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:10:42,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 66 transitions. [2022-10-16 14:10:42,305 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 66 transitions. Word has length 18 [2022-10-16 14:10:42,305 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:10:42,305 INFO L495 AbstractCegarLoop]: Abstraction has 55 states and 66 transitions. [2022-10-16 14:10:42,306 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.5) internal successors, (18), 5 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:10:42,306 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 66 transitions. [2022-10-16 14:10:42,306 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-10-16 14:10:42,306 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:10:42,307 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:10:42,307 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-10-16 14:10:42,307 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-16 14:10:42,308 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:10:42,308 INFO L85 PathProgramCache]: Analyzing trace with hash -2099436558, now seen corresponding path program 1 times [2022-10-16 14:10:42,308 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:10:42,308 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1956810389] [2022-10-16 14:10:42,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:10:42,309 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:10:42,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:10:42,385 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:10:42,385 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:10:42,385 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1956810389] [2022-10-16 14:10:42,385 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1956810389] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:10:42,386 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1481980111] [2022-10-16 14:10:42,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:10:42,386 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:10:42,386 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:10:42,387 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 14:10:42,410 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 14:10:42,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:10:42,465 INFO L263 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-16 14:10:42,467 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:10:42,514 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:10:42,515 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 14:10:42,515 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1481980111] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:10:42,515 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 14:10:42,515 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2022-10-16 14:10:42,516 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [157002983] [2022-10-16 14:10:42,516 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:10:42,516 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-16 14:10:42,516 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:10:42,517 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-16 14:10:42,517 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-10-16 14:10:42,517 INFO L87 Difference]: Start difference. First operand 55 states and 66 transitions. Second operand has 6 states, 5 states have (on average 3.8) internal successors, (19), 6 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:10:42,593 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:10:42,593 INFO L93 Difference]: Finished difference Result 68 states and 79 transitions. [2022-10-16 14:10:42,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-16 14:10:42,594 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.8) internal successors, (19), 6 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2022-10-16 14:10:42,594 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:10:42,595 INFO L225 Difference]: With dead ends: 68 [2022-10-16 14:10:42,595 INFO L226 Difference]: Without dead ends: 67 [2022-10-16 14:10:42,596 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-10-16 14:10:42,596 INFO L413 NwaCegarLoop]: 42 mSDtfsCounter, 35 mSDsluCounter, 118 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 160 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 14:10:42,597 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 160 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 14:10:42,598 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2022-10-16 14:10:42,601 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 49. [2022-10-16 14:10:42,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49 states, 43 states have (on average 1.3488372093023255) internal successors, (58), 48 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 14:10:42,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 58 transitions. [2022-10-16 14:10:42,602 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 58 transitions. Word has length 19 [2022-10-16 14:10:42,602 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:10:42,603 INFO L495 AbstractCegarLoop]: Abstraction has 49 states and 58 transitions. [2022-10-16 14:10:42,603 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.8) internal successors, (19), 6 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:10:42,603 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 58 transitions. [2022-10-16 14:10:42,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-10-16 14:10:42,604 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:10:42,604 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:10:42,640 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 14:10:42,818 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,SelfDestructingSolverStorable9 [2022-10-16 14:10:42,819 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-16 14:10:42,820 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:10:42,821 INFO L85 PathProgramCache]: Analyzing trace with hash 1982006402, now seen corresponding path program 1 times [2022-10-16 14:10:42,821 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:10:42,821 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1020485584] [2022-10-16 14:10:42,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:10:42,822 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:10:42,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:10:42,902 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-10-16 14:10:42,903 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:10:42,903 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1020485584] [2022-10-16 14:10:42,903 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1020485584] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:10:42,903 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 14:10:42,904 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 14:10:42,904 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1643999085] [2022-10-16 14:10:42,904 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:10:42,904 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 14:10:42,905 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:10:42,905 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 14:10:42,905 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 14:10:42,905 INFO L87 Difference]: Start difference. First operand 49 states and 58 transitions. Second operand has 4 states, 3 states have (on average 7.0) internal successors, (21), 4 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:10:42,936 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:10:42,936 INFO L93 Difference]: Finished difference Result 67 states and 78 transitions. [2022-10-16 14:10:42,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 14:10:42,937 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 7.0) internal successors, (21), 4 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 23 [2022-10-16 14:10:42,937 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:10:42,938 INFO L225 Difference]: With dead ends: 67 [2022-10-16 14:10:42,938 INFO L226 Difference]: Without dead ends: 65 [2022-10-16 14:10:42,938 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 14:10:42,939 INFO L413 NwaCegarLoop]: 42 mSDtfsCounter, 31 mSDsluCounter, 53 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 95 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 14:10:42,939 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 95 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 14:10:42,940 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2022-10-16 14:10:42,943 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 53. [2022-10-16 14:10:42,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53 states, 47 states have (on average 1.3404255319148937) internal successors, (63), 52 states have internal predecessors, (63), 0 states have call successors, (0), 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 14:10:42,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 63 transitions. [2022-10-16 14:10:42,945 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 63 transitions. Word has length 23 [2022-10-16 14:10:42,945 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:10:42,945 INFO L495 AbstractCegarLoop]: Abstraction has 53 states and 63 transitions. [2022-10-16 14:10:42,945 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 7.0) internal successors, (21), 4 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:10:42,945 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 63 transitions. [2022-10-16 14:10:42,946 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-10-16 14:10:42,946 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:10:42,946 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:10:42,947 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-10-16 14:10:42,947 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-16 14:10:42,947 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:10:42,948 INFO L85 PathProgramCache]: Analyzing trace with hash 2086210958, now seen corresponding path program 1 times [2022-10-16 14:10:42,948 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:10:42,948 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [861475403] [2022-10-16 14:10:42,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:10:42,948 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:10:42,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:10:43,037 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-10-16 14:10:43,038 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:10:43,038 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [861475403] [2022-10-16 14:10:43,038 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [861475403] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:10:43,038 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1750172425] [2022-10-16 14:10:43,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:10:43,039 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:10:43,039 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:10:43,040 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 14:10:43,063 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 14:10:43,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:10:43,128 INFO L263 TraceCheckSpWp]: Trace formula consists of 158 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-16 14:10:43,129 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:10:43,157 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-10-16 14:10:43,157 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:10:43,198 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-10-16 14:10:43,198 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1750172425] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:10:43,199 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:10:43,199 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2022-10-16 14:10:43,199 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [854323011] [2022-10-16 14:10:43,199 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:10:43,200 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-10-16 14:10:43,200 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:10:43,200 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-10-16 14:10:43,200 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2022-10-16 14:10:43,201 INFO L87 Difference]: Start difference. First operand 53 states and 63 transitions. Second operand has 12 states, 11 states have (on average 3.272727272727273) internal successors, (36), 12 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:10:43,331 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:10:43,331 INFO L93 Difference]: Finished difference Result 141 states and 161 transitions. [2022-10-16 14:10:43,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-10-16 14:10:43,332 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 3.272727272727273) internal successors, (36), 12 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-10-16 14:10:43,332 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:10:43,333 INFO L225 Difference]: With dead ends: 141 [2022-10-16 14:10:43,333 INFO L226 Difference]: Without dead ends: 140 [2022-10-16 14:10:43,334 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=113, Invalid=229, Unknown=0, NotChecked=0, Total=342 [2022-10-16 14:10:43,335 INFO L413 NwaCegarLoop]: 33 mSDtfsCounter, 136 mSDsluCounter, 152 mSDsCounter, 0 mSdLazyCounter, 73 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 136 SdHoareTripleChecker+Valid, 185 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 73 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 14:10:43,335 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [136 Valid, 185 Invalid, 86 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 73 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 14:10:43,343 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states. [2022-10-16 14:10:43,349 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 64. [2022-10-16 14:10:43,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64 states, 58 states have (on average 1.3620689655172413) internal successors, (79), 63 states have internal predecessors, (79), 0 states have call successors, (0), 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 14:10:43,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 79 transitions. [2022-10-16 14:10:43,350 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 79 transitions. Word has length 25 [2022-10-16 14:10:43,352 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:10:43,352 INFO L495 AbstractCegarLoop]: Abstraction has 64 states and 79 transitions. [2022-10-16 14:10:43,352 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 3.272727272727273) internal successors, (36), 12 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:10:43,352 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 79 transitions. [2022-10-16 14:10:43,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-10-16 14:10:43,353 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:10:43,353 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:10:43,387 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-10-16 14:10:43,567 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:10:43,568 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-16 14:10:43,569 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:10:43,569 INFO L85 PathProgramCache]: Analyzing trace with hash 248030379, now seen corresponding path program 1 times [2022-10-16 14:10:43,569 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:10:43,570 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [100387496] [2022-10-16 14:10:43,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:10:43,570 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:10:43,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:10:43,656 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-10-16 14:10:43,657 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:10:43,657 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [100387496] [2022-10-16 14:10:43,657 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [100387496] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:10:43,657 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [729699607] [2022-10-16 14:10:43,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:10:43,658 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:10:43,658 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:10:43,659 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 14:10:43,674 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 14:10:43,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:10:43,751 INFO L263 TraceCheckSpWp]: Trace formula consists of 159 conjuncts, 4 conjunts are in the unsatisfiable core [2022-10-16 14:10:43,754 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:10:43,791 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-10-16 14:10:43,791 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 14:10:43,791 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [729699607] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:10:43,791 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 14:10:43,791 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2022-10-16 14:10:43,794 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2066199555] [2022-10-16 14:10:43,794 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:10:43,796 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 14:10:43,796 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:10:43,796 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 14:10:43,796 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-10-16 14:10:43,797 INFO L87 Difference]: Start difference. First operand 64 states and 79 transitions. Second operand has 4 states, 3 states have (on average 8.0) internal successors, (24), 4 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:10:43,829 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:10:43,830 INFO L93 Difference]: Finished difference Result 64 states and 79 transitions. [2022-10-16 14:10:43,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 14:10:43,830 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 8.0) internal successors, (24), 4 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-10-16 14:10:43,831 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:10:43,832 INFO L225 Difference]: With dead ends: 64 [2022-10-16 14:10:43,833 INFO L226 Difference]: Without dead ends: 63 [2022-10-16 14:10:43,833 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2022-10-16 14:10:43,834 INFO L413 NwaCegarLoop]: 32 mSDtfsCounter, 36 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 64 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 14:10:43,834 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 64 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 14:10:43,835 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2022-10-16 14:10:43,840 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 63. [2022-10-16 14:10:43,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63 states, 58 states have (on average 1.3103448275862069) internal successors, (76), 62 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 14:10:43,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 76 transitions. [2022-10-16 14:10:43,841 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 76 transitions. Word has length 26 [2022-10-16 14:10:43,842 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:10:43,842 INFO L495 AbstractCegarLoop]: Abstraction has 63 states and 76 transitions. [2022-10-16 14:10:43,842 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 8.0) internal successors, (24), 4 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:10:43,842 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 76 transitions. [2022-10-16 14:10:43,843 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-10-16 14:10:43,843 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:10:43,843 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:10:43,881 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 14:10:44,056 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:10:44,057 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-16 14:10:44,058 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:10:44,058 INFO L85 PathProgramCache]: Analyzing trace with hash -328651909, now seen corresponding path program 1 times [2022-10-16 14:10:44,058 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:10:44,059 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1626934345] [2022-10-16 14:10:44,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:10:44,059 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:10:44,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:10:44,192 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-10-16 14:10:44,193 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:10:44,193 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1626934345] [2022-10-16 14:10:44,193 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1626934345] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:10:44,193 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [632890843] [2022-10-16 14:10:44,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:10:44,193 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:10:44,194 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:10:44,195 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 14:10:44,217 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 14:10:44,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:10:44,285 INFO L263 TraceCheckSpWp]: Trace formula consists of 161 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-16 14:10:44,286 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:10:44,315 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-10-16 14:10:44,315 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:10:44,353 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-10-16 14:10:44,354 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [632890843] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:10:44,354 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:10:44,354 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2022-10-16 14:10:44,354 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1112796574] [2022-10-16 14:10:44,355 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:10:44,355 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-10-16 14:10:44,355 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:10:44,356 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-10-16 14:10:44,356 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2022-10-16 14:10:44,356 INFO L87 Difference]: Start difference. First operand 63 states and 76 transitions. Second operand has 12 states, 11 states have (on average 3.8181818181818183) internal successors, (42), 12 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:10:44,505 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:10:44,505 INFO L93 Difference]: Finished difference Result 109 states and 125 transitions. [2022-10-16 14:10:44,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-10-16 14:10:44,506 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 3.8181818181818183) internal successors, (42), 12 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 27 [2022-10-16 14:10:44,506 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:10:44,507 INFO L225 Difference]: With dead ends: 109 [2022-10-16 14:10:44,507 INFO L226 Difference]: Without dead ends: 108 [2022-10-16 14:10:44,507 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=113, Invalid=229, Unknown=0, NotChecked=0, Total=342 [2022-10-16 14:10:44,508 INFO L413 NwaCegarLoop]: 37 mSDtfsCounter, 139 mSDsluCounter, 130 mSDsCounter, 0 mSdLazyCounter, 85 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 139 SdHoareTripleChecker+Valid, 167 SdHoareTripleChecker+Invalid, 102 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 85 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 14:10:44,510 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [139 Valid, 167 Invalid, 102 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 85 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 14:10:44,510 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108 states. [2022-10-16 14:10:44,518 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108 to 74. [2022-10-16 14:10:44,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 74 states, 69 states have (on average 1.3333333333333333) internal successors, (92), 73 states have internal predecessors, (92), 0 states have call successors, (0), 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 14:10:44,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 92 transitions. [2022-10-16 14:10:44,520 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 92 transitions. Word has length 27 [2022-10-16 14:10:44,520 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:10:44,520 INFO L495 AbstractCegarLoop]: Abstraction has 74 states and 92 transitions. [2022-10-16 14:10:44,521 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 3.8181818181818183) internal successors, (42), 12 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:10:44,521 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 92 transitions. [2022-10-16 14:10:44,527 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-10-16 14:10:44,527 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:10:44,527 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:10:44,562 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 14:10:44,743 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2022-10-16 14:10:44,744 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-16 14:10:44,745 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:10:44,745 INFO L85 PathProgramCache]: Analyzing trace with hash -1598274450, now seen corresponding path program 1 times [2022-10-16 14:10:44,745 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:10:44,746 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1127941249] [2022-10-16 14:10:44,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:10:44,746 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:10:44,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:10:44,839 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-10-16 14:10:44,839 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:10:44,839 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1127941249] [2022-10-16 14:10:44,840 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1127941249] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:10:44,840 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [585362481] [2022-10-16 14:10:44,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:10:44,840 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:10:44,840 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:10:44,841 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 14:10:44,864 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-10-16 14:10:44,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:10:44,930 INFO L263 TraceCheckSpWp]: Trace formula consists of 162 conjuncts, 4 conjunts are in the unsatisfiable core [2022-10-16 14:10:44,932 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:10:44,954 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-10-16 14:10:44,955 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 14:10:44,955 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [585362481] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:10:44,955 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 14:10:44,955 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2022-10-16 14:10:44,955 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1372919990] [2022-10-16 14:10:44,956 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:10:44,956 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 14:10:44,956 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:10:44,957 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 14:10:44,957 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-10-16 14:10:44,957 INFO L87 Difference]: Start difference. First operand 74 states and 92 transitions. Second operand has 4 states, 3 states have (on average 8.666666666666666) internal successors, (26), 4 states have internal predecessors, (26), 0 states have call successors, (0), 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 14:10:44,984 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:10:44,984 INFO L93 Difference]: Finished difference Result 74 states and 92 transitions. [2022-10-16 14:10:44,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 14:10:44,985 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 8.666666666666666) internal successors, (26), 4 states have internal predecessors, (26), 0 states have call successors, (0), 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 28 [2022-10-16 14:10:44,985 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:10:44,986 INFO L225 Difference]: With dead ends: 74 [2022-10-16 14:10:44,986 INFO L226 Difference]: Without dead ends: 73 [2022-10-16 14:10:44,986 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2022-10-16 14:10:44,987 INFO L413 NwaCegarLoop]: 31 mSDtfsCounter, 35 mSDsluCounter, 31 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 62 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 14:10:44,987 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 62 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 14:10:44,988 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2022-10-16 14:10:44,993 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 73. [2022-10-16 14:10:44,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73 states, 69 states have (on average 1.289855072463768) internal successors, (89), 72 states have internal predecessors, (89), 0 states have call successors, (0), 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 14:10:44,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 89 transitions. [2022-10-16 14:10:44,994 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 89 transitions. Word has length 28 [2022-10-16 14:10:44,995 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:10:44,995 INFO L495 AbstractCegarLoop]: Abstraction has 73 states and 89 transitions. [2022-10-16 14:10:44,995 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 8.666666666666666) internal successors, (26), 4 states have internal predecessors, (26), 0 states have call successors, (0), 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 14:10:44,995 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 89 transitions. [2022-10-16 14:10:44,995 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-10-16 14:10:44,996 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:10:44,996 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 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 14:10:45,033 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-10-16 14:10:45,201 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2022-10-16 14:10:45,202 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-16 14:10:45,203 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:10:45,203 INFO L85 PathProgramCache]: Analyzing trace with hash 1993046213, now seen corresponding path program 1 times [2022-10-16 14:10:45,204 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:10:45,204 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1903865896] [2022-10-16 14:10:45,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:10:45,205 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:10:45,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:10:45,306 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-10-16 14:10:45,307 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:10:45,307 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1903865896] [2022-10-16 14:10:45,307 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1903865896] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:10:45,307 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1377269602] [2022-10-16 14:10:45,307 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:10:45,307 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:10:45,308 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:10:45,309 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 14:10:45,317 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-10-16 14:10:45,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:10:45,384 INFO L263 TraceCheckSpWp]: Trace formula consists of 162 conjuncts, 4 conjunts are in the unsatisfiable core [2022-10-16 14:10:45,386 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:10:45,449 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-10-16 14:10:45,450 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 14:10:45,450 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1377269602] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:10:45,450 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 14:10:45,450 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 7 [2022-10-16 14:10:45,450 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1598515444] [2022-10-16 14:10:45,450 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:10:45,451 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-16 14:10:45,451 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:10:45,451 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-16 14:10:45,452 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-10-16 14:10:45,452 INFO L87 Difference]: Start difference. First operand 73 states and 89 transitions. Second operand has 5 states, 4 states have (on average 6.75) internal successors, (27), 5 states have internal predecessors, (27), 0 states have call successors, (0), 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 14:10:45,502 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:10:45,502 INFO L93 Difference]: Finished difference Result 109 states and 130 transitions. [2022-10-16 14:10:45,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 14:10:45,503 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 6.75) internal successors, (27), 5 states have internal predecessors, (27), 0 states have call successors, (0), 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 29 [2022-10-16 14:10:45,503 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:10:45,504 INFO L225 Difference]: With dead ends: 109 [2022-10-16 14:10:45,504 INFO L226 Difference]: Without dead ends: 108 [2022-10-16 14:10:45,505 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-10-16 14:10:45,505 INFO L413 NwaCegarLoop]: 31 mSDtfsCounter, 54 mSDsluCounter, 54 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 85 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 14:10:45,506 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [54 Valid, 85 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 14:10:45,506 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108 states. [2022-10-16 14:10:45,516 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108 to 93. [2022-10-16 14:10:45,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 93 states, 89 states have (on average 1.2808988764044944) internal successors, (114), 92 states have internal predecessors, (114), 0 states have call successors, (0), 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 14:10:45,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 114 transitions. [2022-10-16 14:10:45,517 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 114 transitions. Word has length 29 [2022-10-16 14:10:45,517 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:10:45,518 INFO L495 AbstractCegarLoop]: Abstraction has 93 states and 114 transitions. [2022-10-16 14:10:45,518 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 6.75) internal successors, (27), 5 states have internal predecessors, (27), 0 states have call successors, (0), 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 14:10:45,519 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 114 transitions. [2022-10-16 14:10:45,519 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-10-16 14:10:45,519 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:10:45,519 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 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 14:10:45,560 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-10-16 14:10:45,724 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:10:45,725 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-16 14:10:45,726 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:10:45,726 INFO L85 PathProgramCache]: Analyzing trace with hash 1680763141, now seen corresponding path program 1 times [2022-10-16 14:10:45,727 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:10:45,727 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [129308395] [2022-10-16 14:10:45,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:10:45,728 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:10:45,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:10:45,836 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-10-16 14:10:45,837 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:10:45,837 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [129308395] [2022-10-16 14:10:45,837 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [129308395] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:10:45,837 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [115205734] [2022-10-16 14:10:45,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:10:45,838 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:10:45,838 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:10:45,842 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 14:10:45,871 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-10-16 14:10:45,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:10:45,943 INFO L263 TraceCheckSpWp]: Trace formula consists of 162 conjuncts, 4 conjunts are in the unsatisfiable core [2022-10-16 14:10:45,947 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:10:46,003 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-10-16 14:10:46,003 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 14:10:46,003 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [115205734] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:10:46,003 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 14:10:46,004 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 7 [2022-10-16 14:10:46,005 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [492004476] [2022-10-16 14:10:46,005 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:10:46,006 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-16 14:10:46,007 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:10:46,007 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-16 14:10:46,007 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-10-16 14:10:46,008 INFO L87 Difference]: Start difference. First operand 93 states and 114 transitions. Second operand has 5 states, 4 states have (on average 6.75) internal successors, (27), 5 states have internal predecessors, (27), 0 states have call successors, (0), 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 14:10:46,060 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:10:46,060 INFO L93 Difference]: Finished difference Result 109 states and 131 transitions. [2022-10-16 14:10:46,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 14:10:46,061 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 6.75) internal successors, (27), 5 states have internal predecessors, (27), 0 states have call successors, (0), 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 29 [2022-10-16 14:10:46,061 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:10:46,062 INFO L225 Difference]: With dead ends: 109 [2022-10-16 14:10:46,062 INFO L226 Difference]: Without dead ends: 108 [2022-10-16 14:10:46,062 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-10-16 14:10:46,064 INFO L413 NwaCegarLoop]: 38 mSDtfsCounter, 41 mSDsluCounter, 64 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 102 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 14:10:46,064 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 102 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 14:10:46,065 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108 states. [2022-10-16 14:10:46,072 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108 to 93. [2022-10-16 14:10:46,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 93 states, 89 states have (on average 1.2808988764044944) internal successors, (114), 92 states have internal predecessors, (114), 0 states have call successors, (0), 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 14:10:46,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 114 transitions. [2022-10-16 14:10:46,073 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 114 transitions. Word has length 29 [2022-10-16 14:10:46,073 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:10:46,074 INFO L495 AbstractCegarLoop]: Abstraction has 93 states and 114 transitions. [2022-10-16 14:10:46,074 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 6.75) internal successors, (27), 5 states have internal predecessors, (27), 0 states have call successors, (0), 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 14:10:46,074 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 114 transitions. [2022-10-16 14:10:46,074 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-10-16 14:10:46,074 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:10:46,075 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 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 14:10:46,117 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-10-16 14:10:46,289 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2022-10-16 14:10:46,289 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-16 14:10:46,290 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:10:46,290 INFO L85 PathProgramCache]: Analyzing trace with hash 1654890609, now seen corresponding path program 1 times [2022-10-16 14:10:46,290 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:10:46,290 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1993008043] [2022-10-16 14:10:46,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:10:46,291 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:10:46,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:10:46,452 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-10-16 14:10:46,453 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:10:46,453 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1993008043] [2022-10-16 14:10:46,453 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1993008043] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:10:46,453 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [181562985] [2022-10-16 14:10:46,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:10:46,454 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:10:46,454 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:10:46,455 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 14:10:46,476 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-10-16 14:10:46,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:10:46,548 INFO L263 TraceCheckSpWp]: Trace formula consists of 163 conjuncts, 4 conjunts are in the unsatisfiable core [2022-10-16 14:10:46,550 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:10:46,595 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-10-16 14:10:46,595 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 14:10:46,595 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [181562985] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:10:46,596 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 14:10:46,596 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2022-10-16 14:10:46,596 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1948607655] [2022-10-16 14:10:46,596 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:10:46,596 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 14:10:46,597 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:10:46,597 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 14:10:46,597 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-10-16 14:10:46,597 INFO L87 Difference]: Start difference. First operand 93 states and 114 transitions. Second operand has 4 states, 3 states have (on average 9.333333333333334) internal successors, (28), 4 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:10:46,626 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:10:46,626 INFO L93 Difference]: Finished difference Result 109 states and 130 transitions. [2022-10-16 14:10:46,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 14:10:46,627 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 9.333333333333334) internal successors, (28), 4 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 30 [2022-10-16 14:10:46,627 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:10:46,628 INFO L225 Difference]: With dead ends: 109 [2022-10-16 14:10:46,628 INFO L226 Difference]: Without dead ends: 104 [2022-10-16 14:10:46,628 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-10-16 14:10:46,629 INFO L413 NwaCegarLoop]: 33 mSDtfsCounter, 48 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 61 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 14:10:46,629 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 61 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 14:10:46,630 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states. [2022-10-16 14:10:46,637 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 93. [2022-10-16 14:10:46,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 93 states, 89 states have (on average 1.2359550561797752) internal successors, (110), 92 states have internal predecessors, (110), 0 states have call successors, (0), 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 14:10:46,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 110 transitions. [2022-10-16 14:10:46,638 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 110 transitions. Word has length 30 [2022-10-16 14:10:46,638 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:10:46,638 INFO L495 AbstractCegarLoop]: Abstraction has 93 states and 110 transitions. [2022-10-16 14:10:46,638 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 9.333333333333334) internal successors, (28), 4 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:10:46,638 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 110 transitions. [2022-10-16 14:10:46,639 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-10-16 14:10:46,639 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:10:46,639 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 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 14:10:46,679 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-10-16 14:10:46,853 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2022-10-16 14:10:46,853 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-16 14:10:46,854 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:10:46,854 INFO L85 PathProgramCache]: Analyzing trace with hash 564049969, now seen corresponding path program 1 times [2022-10-16 14:10:46,854 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:10:46,854 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1384001218] [2022-10-16 14:10:46,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:10:46,854 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:10:46,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:10:46,948 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-10-16 14:10:46,948 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:10:46,948 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1384001218] [2022-10-16 14:10:46,948 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1384001218] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:10:46,948 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [911522008] [2022-10-16 14:10:46,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:10:46,949 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:10:46,949 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:10:46,950 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 14:10:46,956 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-10-16 14:10:47,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:10:47,048 INFO L263 TraceCheckSpWp]: Trace formula consists of 163 conjuncts, 4 conjunts are in the unsatisfiable core [2022-10-16 14:10:47,060 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:10:47,110 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-10-16 14:10:47,111 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 14:10:47,111 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [911522008] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:10:47,111 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 14:10:47,111 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2022-10-16 14:10:47,113 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [310736554] [2022-10-16 14:10:47,113 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:10:47,114 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 14:10:47,115 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:10:47,115 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 14:10:47,115 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-10-16 14:10:47,115 INFO L87 Difference]: Start difference. First operand 93 states and 110 transitions. Second operand has 4 states, 3 states have (on average 9.333333333333334) internal successors, (28), 4 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:10:47,144 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:10:47,144 INFO L93 Difference]: Finished difference Result 101 states and 119 transitions. [2022-10-16 14:10:47,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 14:10:47,145 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 9.333333333333334) internal successors, (28), 4 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 30 [2022-10-16 14:10:47,145 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:10:47,146 INFO L225 Difference]: With dead ends: 101 [2022-10-16 14:10:47,146 INFO L226 Difference]: Without dead ends: 96 [2022-10-16 14:10:47,146 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-10-16 14:10:47,147 INFO L413 NwaCegarLoop]: 35 mSDtfsCounter, 28 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 61 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 14:10:47,148 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 61 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 14:10:47,149 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2022-10-16 14:10:47,155 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 90. [2022-10-16 14:10:47,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 90 states, 86 states have (on average 1.2325581395348837) internal successors, (106), 89 states have internal predecessors, (106), 0 states have call successors, (0), 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 14:10:47,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 106 transitions. [2022-10-16 14:10:47,156 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 106 transitions. Word has length 30 [2022-10-16 14:10:47,156 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:10:47,156 INFO L495 AbstractCegarLoop]: Abstraction has 90 states and 106 transitions. [2022-10-16 14:10:47,156 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 9.333333333333334) internal successors, (28), 4 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:10:47,157 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 106 transitions. [2022-10-16 14:10:47,157 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-10-16 14:10:47,157 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:10:47,157 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1] [2022-10-16 14:10:47,192 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-10-16 14:10:47,370 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:10:47,371 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-16 14:10:47,372 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:10:47,372 INFO L85 PathProgramCache]: Analyzing trace with hash -415395522, now seen corresponding path program 1 times [2022-10-16 14:10:47,372 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:10:47,373 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1490235019] [2022-10-16 14:10:47,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:10:47,374 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:10:47,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:10:47,507 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-10-16 14:10:47,507 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:10:47,507 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1490235019] [2022-10-16 14:10:47,508 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1490235019] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:10:47,508 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1278243491] [2022-10-16 14:10:47,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:10:47,508 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:10:47,508 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:10:47,511 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 14:10:47,539 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-10-16 14:10:47,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:10:47,614 INFO L263 TraceCheckSpWp]: Trace formula consists of 176 conjuncts, 7 conjunts are in the unsatisfiable core [2022-10-16 14:10:47,615 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:10:47,725 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-10-16 14:10:47,725 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:10:47,801 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-10-16 14:10:47,801 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1278243491] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:10:47,802 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:10:47,802 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 16 [2022-10-16 14:10:47,802 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1932337210] [2022-10-16 14:10:47,802 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:10:47,803 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-10-16 14:10:47,803 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:10:47,803 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-10-16 14:10:47,804 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=200, Unknown=0, NotChecked=0, Total=272 [2022-10-16 14:10:47,804 INFO L87 Difference]: Start difference. First operand 90 states and 106 transitions. Second operand has 17 states, 16 states have (on average 3.9375) internal successors, (63), 17 states have internal predecessors, (63), 0 states have call successors, (0), 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 14:10:47,968 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:10:47,968 INFO L93 Difference]: Finished difference Result 123 states and 142 transitions. [2022-10-16 14:10:47,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-10-16 14:10:47,969 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 3.9375) internal successors, (63), 17 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-10-16 14:10:47,969 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:10:47,970 INFO L225 Difference]: With dead ends: 123 [2022-10-16 14:10:47,970 INFO L226 Difference]: Without dead ends: 122 [2022-10-16 14:10:47,970 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 84 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=142, Invalid=364, Unknown=0, NotChecked=0, Total=506 [2022-10-16 14:10:47,971 INFO L413 NwaCegarLoop]: 28 mSDtfsCounter, 102 mSDsluCounter, 152 mSDsCounter, 0 mSdLazyCounter, 122 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 102 SdHoareTripleChecker+Valid, 180 SdHoareTripleChecker+Invalid, 139 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 122 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 14:10:47,972 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [102 Valid, 180 Invalid, 139 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 122 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 14:10:47,972 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122 states. [2022-10-16 14:10:47,983 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122 to 109. [2022-10-16 14:10:47,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 109 states, 105 states have (on average 1.2190476190476192) internal successors, (128), 108 states have internal predecessors, (128), 0 states have call successors, (0), 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 14:10:47,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 128 transitions. [2022-10-16 14:10:47,985 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 128 transitions. Word has length 33 [2022-10-16 14:10:47,985 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:10:47,985 INFO L495 AbstractCegarLoop]: Abstraction has 109 states and 128 transitions. [2022-10-16 14:10:47,985 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 3.9375) internal successors, (63), 17 states have internal predecessors, (63), 0 states have call successors, (0), 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 14:10:47,986 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 128 transitions. [2022-10-16 14:10:47,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2022-10-16 14:10:47,986 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:10:47,986 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1] [2022-10-16 14:10:48,023 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2022-10-16 14:10:48,200 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:10:48,201 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-16 14:10:48,201 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:10:48,202 INFO L85 PathProgramCache]: Analyzing trace with hash 7640856, now seen corresponding path program 1 times [2022-10-16 14:10:48,202 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:10:48,202 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [227906746] [2022-10-16 14:10:48,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:10:48,203 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:10:48,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:10:48,338 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-10-16 14:10:48,338 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:10:48,339 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [227906746] [2022-10-16 14:10:48,339 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [227906746] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:10:48,339 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [860186831] [2022-10-16 14:10:48,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:10:48,339 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:10:48,340 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:10:48,341 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 14:10:48,359 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2022-10-16 14:10:48,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:10:48,433 INFO L263 TraceCheckSpWp]: Trace formula consists of 177 conjuncts, 6 conjunts are in the unsatisfiable core [2022-10-16 14:10:48,435 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:10:48,509 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-10-16 14:10:48,510 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 14:10:48,510 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [860186831] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:10:48,510 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 14:10:48,510 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [6] total 10 [2022-10-16 14:10:48,510 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1446636438] [2022-10-16 14:10:48,511 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:10:48,511 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-16 14:10:48,511 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:10:48,511 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-16 14:10:48,512 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2022-10-16 14:10:48,512 INFO L87 Difference]: Start difference. First operand 109 states and 128 transitions. Second operand has 6 states, 5 states have (on average 6.4) internal successors, (32), 6 states have internal predecessors, (32), 0 states have call successors, (0), 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 14:10:48,574 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:10:48,574 INFO L93 Difference]: Finished difference Result 115 states and 136 transitions. [2022-10-16 14:10:48,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-16 14:10:48,575 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 6.4) internal successors, (32), 6 states have internal predecessors, (32), 0 states have call successors, (0), 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 34 [2022-10-16 14:10:48,575 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:10:48,576 INFO L225 Difference]: With dead ends: 115 [2022-10-16 14:10:48,576 INFO L226 Difference]: Without dead ends: 110 [2022-10-16 14:10:48,576 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=116, Unknown=0, NotChecked=0, Total=156 [2022-10-16 14:10:48,577 INFO L413 NwaCegarLoop]: 31 mSDtfsCounter, 35 mSDsluCounter, 57 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 88 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 14:10:48,577 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 88 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 14:10:48,578 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110 states. [2022-10-16 14:10:48,586 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 104. [2022-10-16 14:10:48,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 104 states, 101 states have (on average 1.188118811881188) internal successors, (120), 103 states have internal predecessors, (120), 0 states have call successors, (0), 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 14:10:48,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 120 transitions. [2022-10-16 14:10:48,587 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 120 transitions. Word has length 34 [2022-10-16 14:10:48,587 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:10:48,587 INFO L495 AbstractCegarLoop]: Abstraction has 104 states and 120 transitions. [2022-10-16 14:10:48,587 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 6.4) internal successors, (32), 6 states have internal predecessors, (32), 0 states have call successors, (0), 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 14:10:48,587 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 120 transitions. [2022-10-16 14:10:48,588 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2022-10-16 14:10:48,588 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:10:48,588 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:10:48,622 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2022-10-16 14:10:48,802 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20 [2022-10-16 14:10:48,803 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-16 14:10:48,803 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:10:48,803 INFO L85 PathProgramCache]: Analyzing trace with hash 399873785, now seen corresponding path program 2 times [2022-10-16 14:10:48,804 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:10:48,804 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1280579285] [2022-10-16 14:10:48,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:10:48,804 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:10:48,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:10:48,958 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-10-16 14:10:48,958 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:10:48,958 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1280579285] [2022-10-16 14:10:48,959 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1280579285] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:10:48,959 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [795207610] [2022-10-16 14:10:48,959 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-16 14:10:48,959 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:10:48,959 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:10:48,960 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 14:10:48,983 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2022-10-16 14:10:49,066 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-10-16 14:10:49,066 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 14:10:49,067 INFO L263 TraceCheckSpWp]: Trace formula consists of 200 conjuncts, 11 conjunts are in the unsatisfiable core [2022-10-16 14:10:49,069 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:10:49,108 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-10-16 14:10:49,108 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:10:49,239 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-10-16 14:10:49,239 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [795207610] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:10:49,240 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:10:49,240 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 23 [2022-10-16 14:10:49,240 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1864118967] [2022-10-16 14:10:49,240 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:10:49,240 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2022-10-16 14:10:49,241 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:10:49,241 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2022-10-16 14:10:49,241 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=155, Invalid=397, Unknown=0, NotChecked=0, Total=552 [2022-10-16 14:10:49,242 INFO L87 Difference]: Start difference. First operand 104 states and 120 transitions. Second operand has 24 states, 23 states have (on average 2.608695652173913) internal successors, (60), 24 states have internal predecessors, (60), 0 states have call successors, (0), 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 14:10:49,476 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:10:49,476 INFO L93 Difference]: Finished difference Result 341 states and 393 transitions. [2022-10-16 14:10:49,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-10-16 14:10:49,477 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 23 states have (on average 2.608695652173913) internal successors, (60), 24 states have internal predecessors, (60), 0 states have call successors, (0), 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 37 [2022-10-16 14:10:49,477 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:10:49,479 INFO L225 Difference]: With dead ends: 341 [2022-10-16 14:10:49,479 INFO L226 Difference]: Without dead ends: 340 [2022-10-16 14:10:49,480 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 232 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=332, Invalid=790, Unknown=0, NotChecked=0, Total=1122 [2022-10-16 14:10:49,481 INFO L413 NwaCegarLoop]: 32 mSDtfsCounter, 330 mSDsluCounter, 312 mSDsCounter, 0 mSdLazyCounter, 109 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 330 SdHoareTripleChecker+Valid, 344 SdHoareTripleChecker+Invalid, 128 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 109 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 14:10:49,481 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [330 Valid, 344 Invalid, 128 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 109 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 14:10:49,482 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 340 states. [2022-10-16 14:10:49,494 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 340 to 128. [2022-10-16 14:10:49,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 128 states, 125 states have (on average 1.2) internal successors, (150), 127 states have internal predecessors, (150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:10:49,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 128 states and 150 transitions. [2022-10-16 14:10:49,495 INFO L78 Accepts]: Start accepts. Automaton has 128 states and 150 transitions. Word has length 37 [2022-10-16 14:10:49,495 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:10:49,495 INFO L495 AbstractCegarLoop]: Abstraction has 128 states and 150 transitions. [2022-10-16 14:10:49,496 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 23 states have (on average 2.608695652173913) internal successors, (60), 24 states have internal predecessors, (60), 0 states have call successors, (0), 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 14:10:49,496 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 150 transitions. [2022-10-16 14:10:49,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-10-16 14:10:49,496 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:10:49,497 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:10:49,528 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2022-10-16 14:10:49,710 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2022-10-16 14:10:49,711 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-16 14:10:49,712 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:10:49,712 INFO L85 PathProgramCache]: Analyzing trace with hash -773864090, now seen corresponding path program 2 times [2022-10-16 14:10:49,712 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:10:49,713 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [711684906] [2022-10-16 14:10:49,713 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:10:49,714 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:10:49,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:10:49,870 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-10-16 14:10:49,870 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:10:49,871 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [711684906] [2022-10-16 14:10:49,871 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [711684906] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:10:49,871 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [767585881] [2022-10-16 14:10:49,871 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-16 14:10:49,871 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:10:49,871 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:10:49,872 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 14:10:49,891 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2022-10-16 14:10:49,975 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-10-16 14:10:49,975 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 14:10:49,976 INFO L263 TraceCheckSpWp]: Trace formula consists of 203 conjuncts, 11 conjunts are in the unsatisfiable core [2022-10-16 14:10:49,978 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:10:50,019 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-10-16 14:10:50,019 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:10:50,168 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-10-16 14:10:50,168 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [767585881] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:10:50,168 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:10:50,168 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 23 [2022-10-16 14:10:50,169 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1625215619] [2022-10-16 14:10:50,169 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:10:50,169 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2022-10-16 14:10:50,169 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:10:50,170 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2022-10-16 14:10:50,170 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=155, Invalid=397, Unknown=0, NotChecked=0, Total=552 [2022-10-16 14:10:50,171 INFO L87 Difference]: Start difference. First operand 128 states and 150 transitions. Second operand has 24 states, 23 states have (on average 2.869565217391304) internal successors, (66), 24 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:10:50,370 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:10:50,370 INFO L93 Difference]: Finished difference Result 221 states and 253 transitions. [2022-10-16 14:10:50,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-10-16 14:10:50,371 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 23 states have (on average 2.869565217391304) internal successors, (66), 24 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-10-16 14:10:50,371 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:10:50,372 INFO L225 Difference]: With dead ends: 221 [2022-10-16 14:10:50,372 INFO L226 Difference]: Without dead ends: 220 [2022-10-16 14:10:50,373 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 65 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 232 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=332, Invalid=790, Unknown=0, NotChecked=0, Total=1122 [2022-10-16 14:10:50,374 INFO L413 NwaCegarLoop]: 40 mSDtfsCounter, 198 mSDsluCounter, 178 mSDsCounter, 0 mSdLazyCounter, 103 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 198 SdHoareTripleChecker+Valid, 218 SdHoareTripleChecker+Invalid, 114 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 103 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 14:10:50,374 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [198 Valid, 218 Invalid, 114 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 103 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 14:10:50,375 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 220 states. [2022-10-16 14:10:50,391 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 220 to 176. [2022-10-16 14:10:50,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 176 states, 173 states have (on average 1.1791907514450868) internal successors, (204), 175 states have internal predecessors, (204), 0 states have call successors, (0), 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 14:10:50,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 176 states to 176 states and 204 transitions. [2022-10-16 14:10:50,393 INFO L78 Accepts]: Start accepts. Automaton has 176 states and 204 transitions. Word has length 39 [2022-10-16 14:10:50,393 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:10:50,394 INFO L495 AbstractCegarLoop]: Abstraction has 176 states and 204 transitions. [2022-10-16 14:10:50,394 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 23 states have (on average 2.869565217391304) internal successors, (66), 24 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:10:50,394 INFO L276 IsEmpty]: Start isEmpty. Operand 176 states and 204 transitions. [2022-10-16 14:10:50,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2022-10-16 14:10:50,395 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:10:50,395 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 3, 2, 2, 2, 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 14:10:50,432 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2022-10-16 14:10:50,609 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:10:50,609 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-16 14:10:50,610 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:10:50,610 INFO L85 PathProgramCache]: Analyzing trace with hash 977261616, now seen corresponding path program 2 times [2022-10-16 14:10:50,610 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:10:50,610 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1407608787] [2022-10-16 14:10:50,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:10:50,611 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:10:50,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:10:50,793 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-10-16 14:10:50,793 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:10:50,793 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1407608787] [2022-10-16 14:10:50,794 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1407608787] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:10:50,794 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1940420093] [2022-10-16 14:10:50,794 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-16 14:10:50,794 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:10:50,794 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:10:50,795 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 14:10:50,813 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2022-10-16 14:10:50,902 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-10-16 14:10:50,902 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 14:10:50,904 INFO L263 TraceCheckSpWp]: Trace formula consists of 204 conjuncts, 11 conjunts are in the unsatisfiable core [2022-10-16 14:10:50,906 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:10:51,096 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-10-16 14:10:51,097 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:10:51,259 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-10-16 14:10:51,259 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1940420093] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:10:51,259 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:10:51,259 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 28 [2022-10-16 14:10:51,260 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [690833643] [2022-10-16 14:10:51,260 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:10:51,260 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-10-16 14:10:51,260 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:10:51,261 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-10-16 14:10:51,262 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=194, Invalid=618, Unknown=0, NotChecked=0, Total=812 [2022-10-16 14:10:51,262 INFO L87 Difference]: Start difference. First operand 176 states and 204 transitions. Second operand has 29 states, 28 states have (on average 3.107142857142857) internal successors, (87), 29 states have internal predecessors, (87), 0 states have call successors, (0), 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 14:10:51,535 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:10:51,536 INFO L93 Difference]: Finished difference Result 221 states and 254 transitions. [2022-10-16 14:10:51,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-10-16 14:10:51,536 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 28 states have (on average 3.107142857142857) internal successors, (87), 29 states have internal predecessors, (87), 0 states have call successors, (0), 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 41 [2022-10-16 14:10:51,537 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:10:51,538 INFO L225 Difference]: With dead ends: 221 [2022-10-16 14:10:51,538 INFO L226 Difference]: Without dead ends: 208 [2022-10-16 14:10:51,539 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 424 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=378, Invalid=1104, Unknown=0, NotChecked=0, Total=1482 [2022-10-16 14:10:51,540 INFO L413 NwaCegarLoop]: 28 mSDtfsCounter, 146 mSDsluCounter, 237 mSDsCounter, 0 mSdLazyCounter, 192 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 146 SdHoareTripleChecker+Valid, 265 SdHoareTripleChecker+Invalid, 209 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 192 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 14:10:51,540 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [146 Valid, 265 Invalid, 209 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 192 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 14:10:51,541 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 208 states. [2022-10-16 14:10:51,557 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 208 to 200. [2022-10-16 14:10:51,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 200 states, 197 states have (on average 1.1573604060913705) internal successors, (228), 199 states have internal predecessors, (228), 0 states have call successors, (0), 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 14:10:51,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 200 states to 200 states and 228 transitions. [2022-10-16 14:10:51,559 INFO L78 Accepts]: Start accepts. Automaton has 200 states and 228 transitions. Word has length 41 [2022-10-16 14:10:51,559 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:10:51,559 INFO L495 AbstractCegarLoop]: Abstraction has 200 states and 228 transitions. [2022-10-16 14:10:51,559 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 28 states have (on average 3.107142857142857) internal successors, (87), 29 states have internal predecessors, (87), 0 states have call successors, (0), 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 14:10:51,560 INFO L276 IsEmpty]: Start isEmpty. Operand 200 states and 228 transitions. [2022-10-16 14:10:51,560 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2022-10-16 14:10:51,560 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:10:51,560 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 3, 2, 2, 2, 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 14:10:51,598 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2022-10-16 14:10:51,774 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:10:51,775 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-16 14:10:51,775 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:10:51,776 INFO L85 PathProgramCache]: Analyzing trace with hash -2067835728, now seen corresponding path program 3 times [2022-10-16 14:10:51,776 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:10:51,776 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [71340471] [2022-10-16 14:10:51,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:10:51,777 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:10:51,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:10:51,964 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-10-16 14:10:51,964 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:10:51,964 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [71340471] [2022-10-16 14:10:51,964 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [71340471] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:10:51,964 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [668555868] [2022-10-16 14:10:51,965 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-10-16 14:10:51,965 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:10:51,965 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:10:51,966 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 14:10:51,986 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2022-10-16 14:10:52,093 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2022-10-16 14:10:52,093 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 14:10:52,095 INFO L263 TraceCheckSpWp]: Trace formula consists of 190 conjuncts, 32 conjunts are in the unsatisfiable core [2022-10-16 14:10:52,098 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:10:52,130 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-10-16 14:10:52,236 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-10-16 14:10:52,252 INFO L356 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-10-16 14:10:52,253 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2022-10-16 14:10:52,299 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 14:10:52,301 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-10-16 14:10:52,348 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-10-16 14:10:52,370 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-10-16 14:10:52,382 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 6 proven. 3 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-10-16 14:10:52,382 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:10:52,419 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_943 (Array Int Int))) (not (= (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~p~0#1.base| v_ArrVal_943) |c_ULTIMATE.start_main_~a~0#1.base|) |c_ULTIMATE.start_main_~a~0#1.offset|) 1))) is different from false [2022-10-16 14:10:52,443 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_943 (Array Int Int)) (v_ArrVal_942 Int)) (not (= (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~p~0#1.base| (store (select |c_#memory_int| |c_ULTIMATE.start_main_~p~0#1.base|) (+ |c_ULTIMATE.start_main_~p~0#1.offset| 4) v_ArrVal_942)) |c_ULTIMATE.start_main_~t~0#1.base| v_ArrVal_943) |c_ULTIMATE.start_main_~a~0#1.base|) |c_ULTIMATE.start_main_~a~0#1.offset|) 1))) is different from false [2022-10-16 14:10:52,465 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-10-16 14:10:52,465 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 24 treesize of output 30 [2022-10-16 14:10:52,478 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-10-16 14:10:52,478 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 36 [2022-10-16 14:10:52,485 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 18 [2022-10-16 14:10:52,794 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 3 not checked. [2022-10-16 14:10:52,794 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [668555868] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:10:52,794 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:10:52,794 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 8, 8] total 23 [2022-10-16 14:10:52,795 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1036621388] [2022-10-16 14:10:52,795 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:10:52,795 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-10-16 14:10:52,795 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:10:52,796 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-10-16 14:10:52,796 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=361, Unknown=2, NotChecked=78, Total=506 [2022-10-16 14:10:52,797 INFO L87 Difference]: Start difference. First operand 200 states and 228 transitions. Second operand has 23 states, 23 states have (on average 3.9130434782608696) internal successors, (90), 23 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 14:10:53,653 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:10:53,654 INFO L93 Difference]: Finished difference Result 554 states and 629 transitions. [2022-10-16 14:10:53,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-10-16 14:10:53,654 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 3.9130434782608696) internal successors, (90), 23 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) Word has length 41 [2022-10-16 14:10:53,655 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:10:53,657 INFO L225 Difference]: With dead ends: 554 [2022-10-16 14:10:53,657 INFO L226 Difference]: Without dead ends: 418 [2022-10-16 14:10:53,659 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 120 GetRequests, 71 SyntacticMatches, 2 SemanticMatches, 47 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 440 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=355, Invalid=1813, Unknown=2, NotChecked=182, Total=2352 [2022-10-16 14:10:53,660 INFO L413 NwaCegarLoop]: 29 mSDtfsCounter, 231 mSDsluCounter, 360 mSDsCounter, 0 mSdLazyCounter, 351 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 231 SdHoareTripleChecker+Valid, 389 SdHoareTripleChecker+Invalid, 612 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 351 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 227 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-10-16 14:10:53,660 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [231 Valid, 389 Invalid, 612 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 351 Invalid, 0 Unknown, 227 Unchecked, 0.3s Time] [2022-10-16 14:10:53,661 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 418 states. [2022-10-16 14:10:53,685 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 418 to 216. [2022-10-16 14:10:53,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 216 states, 213 states have (on average 1.1549295774647887) internal successors, (246), 215 states have internal predecessors, (246), 0 states have call successors, (0), 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 14:10:53,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 216 states to 216 states and 246 transitions. [2022-10-16 14:10:53,687 INFO L78 Accepts]: Start accepts. Automaton has 216 states and 246 transitions. Word has length 41 [2022-10-16 14:10:53,687 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:10:53,687 INFO L495 AbstractCegarLoop]: Abstraction has 216 states and 246 transitions. [2022-10-16 14:10:53,687 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 3.9130434782608696) internal successors, (90), 23 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 14:10:53,688 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states and 246 transitions. [2022-10-16 14:10:53,688 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2022-10-16 14:10:53,688 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:10:53,688 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:10:53,729 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2022-10-16 14:10:53,903 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2022-10-16 14:10:53,903 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-16 14:10:53,904 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:10:53,904 INFO L85 PathProgramCache]: Analyzing trace with hash 357581267, now seen corresponding path program 1 times [2022-10-16 14:10:53,904 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:10:53,904 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1356997510] [2022-10-16 14:10:53,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:10:53,905 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:10:53,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:10:54,172 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-10-16 14:10:54,173 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:10:54,173 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1356997510] [2022-10-16 14:10:54,173 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1356997510] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:10:54,173 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [545448535] [2022-10-16 14:10:54,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:10:54,173 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:10:54,174 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:10:54,175 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 14:10:54,197 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2022-10-16 14:10:54,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:10:54,325 INFO L263 TraceCheckSpWp]: Trace formula consists of 218 conjuncts, 13 conjunts are in the unsatisfiable core [2022-10-16 14:10:54,327 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:10:54,560 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-10-16 14:10:54,561 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:10:54,782 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-10-16 14:10:54,782 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [545448535] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:10:54,783 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:10:54,783 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 34 [2022-10-16 14:10:54,783 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1483949821] [2022-10-16 14:10:54,783 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:10:54,784 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 35 states [2022-10-16 14:10:54,784 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:10:54,785 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2022-10-16 14:10:54,785 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=261, Invalid=929, Unknown=0, NotChecked=0, Total=1190 [2022-10-16 14:10:54,786 INFO L87 Difference]: Start difference. First operand 216 states and 246 transitions. Second operand has 35 states, 34 states have (on average 2.911764705882353) internal successors, (99), 35 states have internal predecessors, (99), 0 states have call successors, (0), 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 14:10:55,206 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:10:55,206 INFO L93 Difference]: Finished difference Result 262 states and 296 transitions. [2022-10-16 14:10:55,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-10-16 14:10:55,207 INFO L78 Accepts]: Start accepts. Automaton has has 35 states, 34 states have (on average 2.911764705882353) internal successors, (99), 35 states have internal predecessors, (99), 0 states have call successors, (0), 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 45 [2022-10-16 14:10:55,207 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:10:55,208 INFO L225 Difference]: With dead ends: 262 [2022-10-16 14:10:55,208 INFO L226 Difference]: Without dead ends: 252 [2022-10-16 14:10:55,210 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 67 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 678 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=578, Invalid=1972, Unknown=0, NotChecked=0, Total=2550 [2022-10-16 14:10:55,211 INFO L413 NwaCegarLoop]: 28 mSDtfsCounter, 221 mSDsluCounter, 275 mSDsCounter, 0 mSdLazyCounter, 211 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 221 SdHoareTripleChecker+Valid, 303 SdHoareTripleChecker+Invalid, 236 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 211 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 14:10:55,211 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [221 Valid, 303 Invalid, 236 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 211 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 14:10:55,212 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 252 states. [2022-10-16 14:10:55,237 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 252 to 224. [2022-10-16 14:10:55,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 224 states, 221 states have (on average 1.1493212669683257) internal successors, (254), 223 states have internal predecessors, (254), 0 states have call successors, (0), 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 14:10:55,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 224 states to 224 states and 254 transitions. [2022-10-16 14:10:55,239 INFO L78 Accepts]: Start accepts. Automaton has 224 states and 254 transitions. Word has length 45 [2022-10-16 14:10:55,239 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:10:55,239 INFO L495 AbstractCegarLoop]: Abstraction has 224 states and 254 transitions. [2022-10-16 14:10:55,239 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 35 states, 34 states have (on average 2.911764705882353) internal successors, (99), 35 states have internal predecessors, (99), 0 states have call successors, (0), 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 14:10:55,240 INFO L276 IsEmpty]: Start isEmpty. Operand 224 states and 254 transitions. [2022-10-16 14:10:55,240 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2022-10-16 14:10:55,240 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:10:55,240 INFO L195 NwaCegarLoop]: trace histogram [6, 5, 5, 5, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:10:55,279 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2022-10-16 14:10:55,454 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2022-10-16 14:10:55,454 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-16 14:10:55,455 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:10:55,455 INFO L85 PathProgramCache]: Analyzing trace with hash 981249925, now seen corresponding path program 2 times [2022-10-16 14:10:55,455 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:10:55,456 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1845377995] [2022-10-16 14:10:55,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:10:55,456 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:10:55,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:10:55,784 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 0 proven. 58 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-10-16 14:10:55,784 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:10:55,784 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1845377995] [2022-10-16 14:10:55,784 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1845377995] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:10:55,784 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [943312816] [2022-10-16 14:10:55,784 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-16 14:10:55,784 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:10:55,785 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:10:55,785 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 14:10:55,790 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2022-10-16 14:10:55,897 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-10-16 14:10:55,897 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 14:10:55,900 INFO L263 TraceCheckSpWp]: Trace formula consists of 246 conjuncts, 17 conjunts are in the unsatisfiable core [2022-10-16 14:10:55,902 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:10:56,235 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 0 proven. 58 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-10-16 14:10:56,235 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:10:56,547 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 0 proven. 58 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-10-16 14:10:56,547 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [943312816] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:10:56,547 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:10:56,548 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16, 16] total 46 [2022-10-16 14:10:56,548 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [900432960] [2022-10-16 14:10:56,548 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:10:56,548 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 47 states [2022-10-16 14:10:56,549 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:10:56,549 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 47 interpolants. [2022-10-16 14:10:56,550 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=467, Invalid=1695, Unknown=0, NotChecked=0, Total=2162 [2022-10-16 14:10:56,551 INFO L87 Difference]: Start difference. First operand 224 states and 254 transitions. Second operand has 47 states, 46 states have (on average 2.6739130434782608) internal successors, (123), 47 states have internal predecessors, (123), 0 states have call successors, (0), 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 14:10:57,015 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:10:57,016 INFO L93 Difference]: Finished difference Result 319 states and 358 transitions. [2022-10-16 14:10:57,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-10-16 14:10:57,016 INFO L78 Accepts]: Start accepts. Automaton has has 47 states, 46 states have (on average 2.6739130434782608) internal successors, (123), 47 states have internal predecessors, (123), 0 states have call successors, (0), 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 53 [2022-10-16 14:10:57,017 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:10:57,018 INFO L225 Difference]: With dead ends: 319 [2022-10-16 14:10:57,018 INFO L226 Difference]: Without dead ends: 300 [2022-10-16 14:10:57,021 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 138 GetRequests, 75 SyntacticMatches, 0 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1368 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=959, Invalid=3201, Unknown=0, NotChecked=0, Total=4160 [2022-10-16 14:10:57,021 INFO L413 NwaCegarLoop]: 28 mSDtfsCounter, 221 mSDsluCounter, 247 mSDsCounter, 0 mSdLazyCounter, 227 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 221 SdHoareTripleChecker+Valid, 275 SdHoareTripleChecker+Invalid, 263 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 227 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-16 14:10:57,022 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [221 Valid, 275 Invalid, 263 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 227 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-16 14:10:57,023 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 300 states. [2022-10-16 14:10:57,049 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 300 to 244. [2022-10-16 14:10:57,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 244 states, 241 states have (on average 1.1369294605809128) internal successors, (274), 243 states have internal predecessors, (274), 0 states have call successors, (0), 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 14:10:57,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 244 states to 244 states and 274 transitions. [2022-10-16 14:10:57,051 INFO L78 Accepts]: Start accepts. Automaton has 244 states and 274 transitions. Word has length 53 [2022-10-16 14:10:57,051 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:10:57,051 INFO L495 AbstractCegarLoop]: Abstraction has 244 states and 274 transitions. [2022-10-16 14:10:57,051 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 47 states, 46 states have (on average 2.6739130434782608) internal successors, (123), 47 states have internal predecessors, (123), 0 states have call successors, (0), 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 14:10:57,052 INFO L276 IsEmpty]: Start isEmpty. Operand 244 states and 274 transitions. [2022-10-16 14:10:57,052 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2022-10-16 14:10:57,052 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:10:57,053 INFO L195 NwaCegarLoop]: trace histogram [6, 5, 5, 5, 4, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:10:57,086 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2022-10-16 14:10:57,268 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2022-10-16 14:10:57,269 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-16 14:10:57,269 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:10:57,270 INFO L85 PathProgramCache]: Analyzing trace with hash 1912858750, now seen corresponding path program 3 times [2022-10-16 14:10:57,270 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:10:57,270 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1637139214] [2022-10-16 14:10:57,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:10:57,271 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:10:57,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:10:57,714 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 0 proven. 68 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-10-16 14:10:57,714 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:10:57,714 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1637139214] [2022-10-16 14:10:57,714 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1637139214] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:10:57,715 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1594373503] [2022-10-16 14:10:57,715 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-10-16 14:10:57,715 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:10:57,715 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:10:57,716 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 14:10:57,745 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2022-10-16 14:10:57,988 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2022-10-16 14:10:57,989 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 14:10:57,991 INFO L263 TraceCheckSpWp]: Trace formula consists of 260 conjuncts, 19 conjunts are in the unsatisfiable core [2022-10-16 14:10:57,993 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:10:58,391 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 0 proven. 68 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-10-16 14:10:58,391 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:10:58,783 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 0 proven. 68 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-10-16 14:10:58,783 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1594373503] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:10:58,783 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:10:58,784 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 18, 18] total 52 [2022-10-16 14:10:58,784 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [321295275] [2022-10-16 14:10:58,784 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:10:58,784 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 53 states [2022-10-16 14:10:58,785 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:10:58,785 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 53 interpolants. [2022-10-16 14:10:58,786 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=566, Invalid=2190, Unknown=0, NotChecked=0, Total=2756 [2022-10-16 14:10:58,787 INFO L87 Difference]: Start difference. First operand 244 states and 274 transitions. Second operand has 53 states, 52 states have (on average 2.5961538461538463) internal successors, (135), 53 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 14:10:59,527 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:10:59,528 INFO L93 Difference]: Finished difference Result 329 states and 366 transitions. [2022-10-16 14:10:59,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-10-16 14:10:59,528 INFO L78 Accepts]: Start accepts. Automaton has has 53 states, 52 states have (on average 2.5961538461538463) internal successors, (135), 53 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) Word has length 57 [2022-10-16 14:10:59,529 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:10:59,530 INFO L225 Difference]: With dead ends: 329 [2022-10-16 14:10:59,530 INFO L226 Difference]: Without dead ends: 316 [2022-10-16 14:10:59,533 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 156 GetRequests, 79 SyntacticMatches, 0 SemanticMatches, 77 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1804 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=1304, Invalid=4858, Unknown=0, NotChecked=0, Total=6162 [2022-10-16 14:10:59,534 INFO L413 NwaCegarLoop]: 28 mSDtfsCounter, 332 mSDsluCounter, 284 mSDsCounter, 0 mSdLazyCounter, 257 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 332 SdHoareTripleChecker+Valid, 312 SdHoareTripleChecker+Invalid, 310 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 257 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-16 14:10:59,534 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [332 Valid, 312 Invalid, 310 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 257 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-16 14:10:59,535 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 316 states. [2022-10-16 14:10:59,563 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 316 to 255. [2022-10-16 14:10:59,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 255 states, 252 states have (on average 1.1349206349206349) internal successors, (286), 254 states have internal predecessors, (286), 0 states have call successors, (0), 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 14:10:59,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 255 states to 255 states and 286 transitions. [2022-10-16 14:10:59,565 INFO L78 Accepts]: Start accepts. Automaton has 255 states and 286 transitions. Word has length 57 [2022-10-16 14:10:59,565 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:10:59,565 INFO L495 AbstractCegarLoop]: Abstraction has 255 states and 286 transitions. [2022-10-16 14:10:59,565 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 53 states, 52 states have (on average 2.5961538461538463) internal successors, (135), 53 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 14:10:59,565 INFO L276 IsEmpty]: Start isEmpty. Operand 255 states and 286 transitions. [2022-10-16 14:10:59,566 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2022-10-16 14:10:59,566 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:10:59,566 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 10, 10, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:10:59,605 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2022-10-16 14:10:59,780 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27,20 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:10:59,780 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-16 14:10:59,781 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:10:59,781 INFO L85 PathProgramCache]: Analyzing trace with hash -1561751879, now seen corresponding path program 1 times [2022-10-16 14:10:59,781 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:10:59,781 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [678252731] [2022-10-16 14:10:59,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:10:59,782 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:10:59,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:11:00,262 INFO L134 CoverageAnalysis]: Checked inductivity of 213 backedges. 0 proven. 210 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-10-16 14:11:00,263 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:11:00,263 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [678252731] [2022-10-16 14:11:00,263 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [678252731] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:11:00,263 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [407482918] [2022-10-16 14:11:00,263 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:11:00,263 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:11:00,264 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:11:00,265 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 14:11:00,270 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2022-10-16 14:11:00,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:11:00,391 INFO L263 TraceCheckSpWp]: Trace formula consists of 284 conjuncts, 23 conjunts are in the unsatisfiable core [2022-10-16 14:11:00,393 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:11:00,461 INFO L134 CoverageAnalysis]: Checked inductivity of 213 backedges. 0 proven. 210 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-10-16 14:11:00,461 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:11:00,922 INFO L134 CoverageAnalysis]: Checked inductivity of 213 backedges. 0 proven. 210 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-10-16 14:11:00,923 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [407482918] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:11:00,923 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:11:00,923 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 23, 23] total 47 [2022-10-16 14:11:00,924 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1302548849] [2022-10-16 14:11:00,924 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:11:00,924 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 48 states [2022-10-16 14:11:00,924 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:11:00,925 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2022-10-16 14:11:00,926 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=599, Invalid=1657, Unknown=0, NotChecked=0, Total=2256 [2022-10-16 14:11:00,926 INFO L87 Difference]: Start difference. First operand 255 states and 286 transitions. Second operand has 48 states, 47 states have (on average 2.297872340425532) internal successors, (108), 48 states have internal predecessors, (108), 0 states have call successors, (0), 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 14:11:01,660 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:11:01,660 INFO L93 Difference]: Finished difference Result 1245 states and 1437 transitions. [2022-10-16 14:11:01,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2022-10-16 14:11:01,661 INFO L78 Accepts]: Start accepts. Automaton has has 48 states, 47 states have (on average 2.297872340425532) internal successors, (108), 48 states have internal predecessors, (108), 0 states have call successors, (0), 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 61 [2022-10-16 14:11:01,661 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:11:01,667 INFO L225 Difference]: With dead ends: 1245 [2022-10-16 14:11:01,667 INFO L226 Difference]: Without dead ends: 1244 [2022-10-16 14:11:01,669 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 165 GetRequests, 97 SyntacticMatches, 0 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1048 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=1382, Invalid=3448, Unknown=0, NotChecked=0, Total=4830 [2022-10-16 14:11:01,670 INFO L413 NwaCegarLoop]: 35 mSDtfsCounter, 685 mSDsluCounter, 546 mSDsCounter, 0 mSdLazyCounter, 208 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 685 SdHoareTripleChecker+Valid, 581 SdHoareTripleChecker+Invalid, 234 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 208 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 14:11:01,670 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [685 Valid, 581 Invalid, 234 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 208 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 14:11:01,672 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1244 states. [2022-10-16 14:11:01,723 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1244 to 300. [2022-10-16 14:11:01,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 300 states, 297 states have (on average 1.1515151515151516) internal successors, (342), 299 states have internal predecessors, (342), 0 states have call successors, (0), 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 14:11:01,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 300 states to 300 states and 342 transitions. [2022-10-16 14:11:01,725 INFO L78 Accepts]: Start accepts. Automaton has 300 states and 342 transitions. Word has length 61 [2022-10-16 14:11:01,725 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:11:01,725 INFO L495 AbstractCegarLoop]: Abstraction has 300 states and 342 transitions. [2022-10-16 14:11:01,726 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 48 states, 47 states have (on average 2.297872340425532) internal successors, (108), 48 states have internal predecessors, (108), 0 states have call successors, (0), 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 14:11:01,726 INFO L276 IsEmpty]: Start isEmpty. Operand 300 states and 342 transitions. [2022-10-16 14:11:01,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-10-16 14:11:01,727 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:11:01,727 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 10, 10, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:11:01,754 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2022-10-16 14:11:01,940 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2022-10-16 14:11:01,941 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-16 14:11:01,942 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:11:01,942 INFO L85 PathProgramCache]: Analyzing trace with hash 290594748, now seen corresponding path program 3 times [2022-10-16 14:11:01,942 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:11:01,943 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [915315769] [2022-10-16 14:11:01,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:11:01,944 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:11:01,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:11:02,365 INFO L134 CoverageAnalysis]: Checked inductivity of 213 backedges. 0 proven. 210 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-10-16 14:11:02,366 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:11:02,366 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [915315769] [2022-10-16 14:11:02,366 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [915315769] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:11:02,367 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [138531842] [2022-10-16 14:11:02,367 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-10-16 14:11:02,367 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:11:02,367 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:11:02,368 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 14:11:02,370 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2022-10-16 14:11:02,562 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 7 check-sat command(s) [2022-10-16 14:11:02,562 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 14:11:02,564 INFO L263 TraceCheckSpWp]: Trace formula consists of 231 conjuncts, 42 conjunts are in the unsatisfiable core [2022-10-16 14:11:02,567 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:11:02,574 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-10-16 14:11:02,684 INFO L356 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-10-16 14:11:02,685 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2022-10-16 14:11:02,728 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-10-16 14:11:02,736 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-10-16 14:11:02,839 INFO L356 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-10-16 14:11:02,839 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 61 treesize of output 58 [2022-10-16 14:11:02,847 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 14:11:02,848 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 33 [2022-10-16 14:11:02,852 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 33 [2022-10-16 14:11:02,923 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 19 [2022-10-16 14:11:02,926 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 14 [2022-10-16 14:11:02,953 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-10-16 14:11:02,973 INFO L134 CoverageAnalysis]: Checked inductivity of 213 backedges. 55 proven. 5 refuted. 0 times theorem prover too weak. 153 trivial. 0 not checked. [2022-10-16 14:11:02,973 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:11:03,087 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 204 treesize of output 182 [2022-10-16 14:11:03,120 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse0 (+ |c_ULTIMATE.start_main_~a~0#1.offset| 4))) (and (forall ((v_ArrVal_1225 (Array Int Int))) (= |c_ULTIMATE.start_main_~p~0#1.base| (select (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~p~0#1.base| v_ArrVal_1225) |c_ULTIMATE.start_main_~a~0#1.base|) .cse0))) (forall ((v_ArrVal_1219 (Array Int Int))) (= (select (select (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_main_~p~0#1.base| v_ArrVal_1219) |c_ULTIMATE.start_main_~a~0#1.base|) .cse0) |c_ULTIMATE.start_main_~p~0#1.offset|)))) is different from false [2022-10-16 14:11:03,144 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-10-16 14:11:03,144 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 22 treesize of output 23 [2022-10-16 14:11:03,151 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-10-16 14:11:03,152 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 36 treesize of output 35 [2022-10-16 14:11:03,155 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-10-16 14:11:03,168 INFO L356 Elim1Store]: treesize reduction 9, result has 10.0 percent of original size [2022-10-16 14:11:03,168 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 22 treesize of output 1 [2022-10-16 14:11:03,359 INFO L134 CoverageAnalysis]: Checked inductivity of 213 backedges. 55 proven. 2 refuted. 0 times theorem prover too weak. 153 trivial. 3 not checked. [2022-10-16 14:11:03,359 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [138531842] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:11:03,360 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:11:03,360 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 9, 9] total 37 [2022-10-16 14:11:03,360 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1593708116] [2022-10-16 14:11:03,360 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:11:03,361 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 37 states [2022-10-16 14:11:03,361 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:11:03,361 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2022-10-16 14:11:03,362 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=189, Invalid=1074, Unknown=1, NotChecked=68, Total=1332 [2022-10-16 14:11:03,362 INFO L87 Difference]: Start difference. First operand 300 states and 342 transitions. Second operand has 37 states, 37 states have (on average 3.108108108108108) internal successors, (115), 37 states have internal predecessors, (115), 0 states have call successors, (0), 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 14:11:04,286 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:11:04,287 INFO L93 Difference]: Finished difference Result 481 states and 526 transitions. [2022-10-16 14:11:04,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-10-16 14:11:04,287 INFO L78 Accepts]: Start accepts. Automaton has has 37 states, 37 states have (on average 3.108108108108108) internal successors, (115), 37 states have internal predecessors, (115), 0 states have call successors, (0), 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 63 [2022-10-16 14:11:04,287 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:11:04,290 INFO L225 Difference]: With dead ends: 481 [2022-10-16 14:11:04,290 INFO L226 Difference]: Without dead ends: 383 [2022-10-16 14:11:04,292 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 177 GetRequests, 117 SyntacticMatches, 1 SemanticMatches, 59 ConstructedPredicates, 1 IntricatePredicates, 1 DeprecatedPredicates, 665 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=610, Invalid=2933, Unknown=1, NotChecked=116, Total=3660 [2022-10-16 14:11:04,293 INFO L413 NwaCegarLoop]: 46 mSDtfsCounter, 487 mSDsluCounter, 529 mSDsCounter, 0 mSdLazyCounter, 450 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 487 SdHoareTripleChecker+Valid, 575 SdHoareTripleChecker+Invalid, 622 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 450 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 116 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-10-16 14:11:04,293 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [487 Valid, 575 Invalid, 622 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 450 Invalid, 0 Unknown, 116 Unchecked, 0.3s Time] [2022-10-16 14:11:04,294 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 383 states. [2022-10-16 14:11:04,339 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 383 to 322. [2022-10-16 14:11:04,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 322 states, 319 states have (on average 1.1536050156739812) internal successors, (368), 321 states have internal predecessors, (368), 0 states have call successors, (0), 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 14:11:04,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 322 states to 322 states and 368 transitions. [2022-10-16 14:11:04,341 INFO L78 Accepts]: Start accepts. Automaton has 322 states and 368 transitions. Word has length 63 [2022-10-16 14:11:04,341 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:11:04,342 INFO L495 AbstractCegarLoop]: Abstraction has 322 states and 368 transitions. [2022-10-16 14:11:04,342 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 37 states, 37 states have (on average 3.108108108108108) internal successors, (115), 37 states have internal predecessors, (115), 0 states have call successors, (0), 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 14:11:04,342 INFO L276 IsEmpty]: Start isEmpty. Operand 322 states and 368 transitions. [2022-10-16 14:11:04,343 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-10-16 14:11:04,343 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:11:04,343 INFO L195 NwaCegarLoop]: trace histogram [8, 7, 7, 7, 4, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:11:04,391 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Forceful destruction successful, exit code 0 [2022-10-16 14:11:04,556 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,22 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:11:04,557 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-16 14:11:04,557 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:11:04,558 INFO L85 PathProgramCache]: Analyzing trace with hash 1097624304, now seen corresponding path program 4 times [2022-10-16 14:11:04,558 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:11:04,559 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1748762621] [2022-10-16 14:11:04,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:11:04,559 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:11:04,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:11:05,068 INFO L134 CoverageAnalysis]: Checked inductivity of 119 backedges. 0 proven. 116 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-10-16 14:11:05,069 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:11:05,069 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1748762621] [2022-10-16 14:11:05,069 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1748762621] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:11:05,069 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [465801443] [2022-10-16 14:11:05,069 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-10-16 14:11:05,070 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:11:05,070 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:11:05,071 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 14:11:05,072 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2022-10-16 14:11:05,210 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-10-16 14:11:05,210 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 14:11:05,212 INFO L263 TraceCheckSpWp]: Trace formula consists of 288 conjuncts, 23 conjunts are in the unsatisfiable core [2022-10-16 14:11:05,214 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:11:05,739 INFO L134 CoverageAnalysis]: Checked inductivity of 119 backedges. 0 proven. 116 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-10-16 14:11:05,739 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:11:06,285 INFO L134 CoverageAnalysis]: Checked inductivity of 119 backedges. 0 proven. 116 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-10-16 14:11:06,285 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [465801443] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:11:06,285 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:11:06,285 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 22, 22] total 64 [2022-10-16 14:11:06,285 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [286146480] [2022-10-16 14:11:06,285 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:11:06,286 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 65 states [2022-10-16 14:11:06,286 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:11:06,287 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 65 interpolants. [2022-10-16 14:11:06,289 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=856, Invalid=3304, Unknown=0, NotChecked=0, Total=4160 [2022-10-16 14:11:06,289 INFO L87 Difference]: Start difference. First operand 322 states and 368 transitions. Second operand has 65 states, 64 states have (on average 2.484375) internal successors, (159), 65 states have internal predecessors, (159), 0 states have call successors, (0), 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 14:11:07,085 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:11:07,085 INFO L93 Difference]: Finished difference Result 468 states and 529 transitions. [2022-10-16 14:11:07,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2022-10-16 14:11:07,086 INFO L78 Accepts]: Start accepts. Automaton has has 65 states, 64 states have (on average 2.484375) internal successors, (159), 65 states have internal predecessors, (159), 0 states have call successors, (0), 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 65 [2022-10-16 14:11:07,086 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:11:07,088 INFO L225 Difference]: With dead ends: 468 [2022-10-16 14:11:07,088 INFO L226 Difference]: Without dead ends: 443 [2022-10-16 14:11:07,092 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 176 GetRequests, 87 SyntacticMatches, 0 SemanticMatches, 89 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2841 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=1803, Invalid=6387, Unknown=0, NotChecked=0, Total=8190 [2022-10-16 14:11:07,093 INFO L413 NwaCegarLoop]: 27 mSDtfsCounter, 350 mSDsluCounter, 264 mSDsCounter, 0 mSdLazyCounter, 291 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 350 SdHoareTripleChecker+Valid, 291 SdHoareTripleChecker+Invalid, 340 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 291 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-16 14:11:07,093 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [350 Valid, 291 Invalid, 340 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 291 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-16 14:11:07,094 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 443 states. [2022-10-16 14:11:07,136 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 443 to 342. [2022-10-16 14:11:07,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 342 states, 339 states have (on average 1.1533923303834808) internal successors, (391), 341 states have internal predecessors, (391), 0 states have call successors, (0), 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 14:11:07,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 342 states to 342 states and 391 transitions. [2022-10-16 14:11:07,138 INFO L78 Accepts]: Start accepts. Automaton has 342 states and 391 transitions. Word has length 65 [2022-10-16 14:11:07,138 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:11:07,138 INFO L495 AbstractCegarLoop]: Abstraction has 342 states and 391 transitions. [2022-10-16 14:11:07,139 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 65 states, 64 states have (on average 2.484375) internal successors, (159), 65 states have internal predecessors, (159), 0 states have call successors, (0), 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 14:11:07,139 INFO L276 IsEmpty]: Start isEmpty. Operand 342 states and 391 transitions. [2022-10-16 14:11:07,140 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2022-10-16 14:11:07,140 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:11:07,140 INFO L195 NwaCegarLoop]: trace histogram [8, 7, 7, 7, 5, 4, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:11:07,165 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Forceful destruction successful, exit code 0 [2022-10-16 14:11:07,353 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30,23 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:11:07,354 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-16 14:11:07,354 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:11:07,355 INFO L85 PathProgramCache]: Analyzing trace with hash 897558185, now seen corresponding path program 5 times [2022-10-16 14:11:07,355 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:11:07,355 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1068144217] [2022-10-16 14:11:07,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:11:07,356 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:11:07,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:11:07,950 INFO L134 CoverageAnalysis]: Checked inductivity of 133 backedges. 0 proven. 130 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-10-16 14:11:07,950 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:11:07,951 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1068144217] [2022-10-16 14:11:07,951 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1068144217] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:11:07,951 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1096991376] [2022-10-16 14:11:07,951 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-10-16 14:11:07,951 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:11:07,951 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:11:07,957 INFO L229 MonitoredProcess]: Starting monitored process 24 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 14:11:07,976 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2022-10-16 14:11:08,105 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 8 check-sat command(s) [2022-10-16 14:11:08,105 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 14:11:08,107 INFO L263 TraceCheckSpWp]: Trace formula consists of 302 conjuncts, 25 conjunts are in the unsatisfiable core [2022-10-16 14:11:08,109 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:11:08,756 INFO L134 CoverageAnalysis]: Checked inductivity of 133 backedges. 0 proven. 130 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-10-16 14:11:08,756 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:11:09,463 INFO L134 CoverageAnalysis]: Checked inductivity of 133 backedges. 0 proven. 130 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-10-16 14:11:09,463 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1096991376] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:11:09,463 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:11:09,463 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 24, 24] total 70 [2022-10-16 14:11:09,464 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1515033494] [2022-10-16 14:11:09,464 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:11:09,464 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 71 states [2022-10-16 14:11:09,465 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:11:09,465 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 71 interpolants. [2022-10-16 14:11:09,470 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=987, Invalid=3983, Unknown=0, NotChecked=0, Total=4970 [2022-10-16 14:11:09,471 INFO L87 Difference]: Start difference. First operand 342 states and 391 transitions. Second operand has 71 states, 70 states have (on average 2.442857142857143) internal successors, (171), 71 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:11:10,670 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:11:10,670 INFO L93 Difference]: Finished difference Result 450 states and 507 transitions. [2022-10-16 14:11:10,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2022-10-16 14:11:10,671 INFO L78 Accepts]: Start accepts. Automaton has has 71 states, 70 states have (on average 2.442857142857143) internal successors, (171), 71 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 69 [2022-10-16 14:11:10,671 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:11:10,673 INFO L225 Difference]: With dead ends: 450 [2022-10-16 14:11:10,673 INFO L226 Difference]: Without dead ends: 434 [2022-10-16 14:11:10,677 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 196 GetRequests, 91 SyntacticMatches, 0 SemanticMatches, 105 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3473 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=2320, Invalid=9022, Unknown=0, NotChecked=0, Total=11342 [2022-10-16 14:11:10,678 INFO L413 NwaCegarLoop]: 28 mSDtfsCounter, 461 mSDsluCounter, 325 mSDsCounter, 0 mSdLazyCounter, 312 mSolverCounterSat, 83 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 461 SdHoareTripleChecker+Valid, 353 SdHoareTripleChecker+Invalid, 395 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 83 IncrementalHoareTripleChecker+Valid, 312 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-16 14:11:10,678 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [461 Valid, 353 Invalid, 395 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [83 Valid, 312 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-16 14:11:10,679 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 434 states. [2022-10-16 14:11:10,720 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 434 to 350. [2022-10-16 14:11:10,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 350 states, 347 states have (on average 1.1498559077809798) internal successors, (399), 349 states have internal predecessors, (399), 0 states have call successors, (0), 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 14:11:10,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 350 states to 350 states and 399 transitions. [2022-10-16 14:11:10,722 INFO L78 Accepts]: Start accepts. Automaton has 350 states and 399 transitions. Word has length 69 [2022-10-16 14:11:10,722 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:11:10,723 INFO L495 AbstractCegarLoop]: Abstraction has 350 states and 399 transitions. [2022-10-16 14:11:10,723 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 71 states, 70 states have (on average 2.442857142857143) internal successors, (171), 71 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:11:10,723 INFO L276 IsEmpty]: Start isEmpty. Operand 350 states and 399 transitions. [2022-10-16 14:11:10,724 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2022-10-16 14:11:10,724 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:11:10,724 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 11, 11, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:11:10,748 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Ended with exit code 0 [2022-10-16 14:11:10,932 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31,24 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:11:10,932 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-16 14:11:10,933 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:11:10,933 INFO L85 PathProgramCache]: Analyzing trace with hash -838638967, now seen corresponding path program 4 times [2022-10-16 14:11:10,934 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:11:10,934 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1133146735] [2022-10-16 14:11:10,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:11:10,934 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:11:10,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:11:11,414 INFO L134 CoverageAnalysis]: Checked inductivity of 266 backedges. 0 proven. 253 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2022-10-16 14:11:11,415 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:11:11,415 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1133146735] [2022-10-16 14:11:11,415 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1133146735] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:11:11,415 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [390703497] [2022-10-16 14:11:11,415 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-10-16 14:11:11,415 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:11:11,416 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:11:11,417 INFO L229 MonitoredProcess]: Starting monitored process 25 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 14:11:11,418 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2022-10-16 14:11:11,576 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-10-16 14:11:11,576 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 14:11:11,578 INFO L263 TraceCheckSpWp]: Trace formula consists of 354 conjuncts, 25 conjunts are in the unsatisfiable core [2022-10-16 14:11:11,580 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:11:11,669 INFO L134 CoverageAnalysis]: Checked inductivity of 266 backedges. 0 proven. 253 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2022-10-16 14:11:11,669 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:11:12,281 INFO L134 CoverageAnalysis]: Checked inductivity of 266 backedges. 0 proven. 253 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2022-10-16 14:11:12,281 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [390703497] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:11:12,281 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:11:12,282 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 25, 25] total 51 [2022-10-16 14:11:12,282 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [601419965] [2022-10-16 14:11:12,282 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:11:12,283 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 52 states [2022-10-16 14:11:12,283 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:11:12,285 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 52 interpolants. [2022-10-16 14:11:12,286 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=701, Invalid=1951, Unknown=0, NotChecked=0, Total=2652 [2022-10-16 14:11:12,286 INFO L87 Difference]: Start difference. First operand 350 states and 399 transitions. Second operand has 52 states, 51 states have (on average 2.392156862745098) internal successors, (122), 52 states have internal predecessors, (122), 0 states have call successors, (0), 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 14:11:12,968 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:11:12,968 INFO L93 Difference]: Finished difference Result 555 states and 621 transitions. [2022-10-16 14:11:12,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2022-10-16 14:11:12,968 INFO L78 Accepts]: Start accepts. Automaton has has 52 states, 51 states have (on average 2.392156862745098) internal successors, (122), 52 states have internal predecessors, (122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 74 [2022-10-16 14:11:12,969 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:11:12,972 INFO L225 Difference]: With dead ends: 555 [2022-10-16 14:11:12,972 INFO L226 Difference]: Without dead ends: 554 [2022-10-16 14:11:12,973 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 195 GetRequests, 121 SyntacticMatches, 0 SemanticMatches, 74 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1240 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=1627, Invalid=4073, Unknown=0, NotChecked=0, Total=5700 [2022-10-16 14:11:12,974 INFO L413 NwaCegarLoop]: 38 mSDtfsCounter, 443 mSDsluCounter, 292 mSDsCounter, 0 mSdLazyCounter, 201 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 443 SdHoareTripleChecker+Valid, 330 SdHoareTripleChecker+Invalid, 229 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 201 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-16 14:11:12,974 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [443 Valid, 330 Invalid, 229 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 201 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-16 14:11:12,975 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 554 states. [2022-10-16 14:11:13,030 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 554 to 454. [2022-10-16 14:11:13,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 454 states, 451 states have (on average 1.1374722838137472) internal successors, (513), 453 states have internal predecessors, (513), 0 states have call successors, (0), 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 14:11:13,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 454 states to 454 states and 513 transitions. [2022-10-16 14:11:13,033 INFO L78 Accepts]: Start accepts. Automaton has 454 states and 513 transitions. Word has length 74 [2022-10-16 14:11:13,033 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:11:13,033 INFO L495 AbstractCegarLoop]: Abstraction has 454 states and 513 transitions. [2022-10-16 14:11:13,034 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 52 states, 51 states have (on average 2.392156862745098) internal successors, (122), 52 states have internal predecessors, (122), 0 states have call successors, (0), 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 14:11:13,034 INFO L276 IsEmpty]: Start isEmpty. Operand 454 states and 513 transitions. [2022-10-16 14:11:13,035 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-10-16 14:11:13,035 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:11:13,035 INFO L195 NwaCegarLoop]: trace histogram [10, 9, 9, 9, 5, 4, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:11:13,064 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Forceful destruction successful, exit code 0 [2022-10-16 14:11:13,249 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32,25 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:11:13,249 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-16 14:11:13,250 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:11:13,250 INFO L85 PathProgramCache]: Analyzing trace with hash 1147870683, now seen corresponding path program 6 times [2022-10-16 14:11:13,251 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:11:13,251 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [51196072] [2022-10-16 14:11:13,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:11:13,252 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:11:13,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:11:13,920 INFO L134 CoverageAnalysis]: Checked inductivity of 197 backedges. 0 proven. 194 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-10-16 14:11:13,920 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:11:13,920 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [51196072] [2022-10-16 14:11:13,920 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [51196072] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:11:13,920 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1347327031] [2022-10-16 14:11:13,921 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-10-16 14:11:13,921 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:11:13,921 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:11:13,922 INFO L229 MonitoredProcess]: Starting monitored process 26 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 14:11:13,940 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2022-10-16 14:11:14,160 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 9 check-sat command(s) [2022-10-16 14:11:14,160 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 14:11:14,163 INFO L263 TraceCheckSpWp]: Trace formula consists of 316 conjuncts, 43 conjunts are in the unsatisfiable core [2022-10-16 14:11:14,166 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:11:14,172 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-10-16 14:11:14,247 INFO L356 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-10-16 14:11:14,247 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2022-10-16 14:11:14,294 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-10-16 14:11:14,300 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-10-16 14:11:14,396 INFO L356 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-10-16 14:11:14,396 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 75 treesize of output 72 [2022-10-16 14:11:14,401 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 14:11:14,402 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 41 [2022-10-16 14:11:14,406 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 41 [2022-10-16 14:11:14,465 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 21 [2022-10-16 14:11:14,469 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 14 [2022-10-16 14:11:14,497 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-10-16 14:11:14,520 INFO L134 CoverageAnalysis]: Checked inductivity of 197 backedges. 18 proven. 5 refuted. 0 times theorem prover too weak. 174 trivial. 0 not checked. [2022-10-16 14:11:14,520 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:11:14,626 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 161 treesize of output 139 [2022-10-16 14:11:14,648 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse0 (+ |c_ULTIMATE.start_main_~a~0#1.offset| 4))) (and (forall ((v_ArrVal_1477 (Array Int Int))) (= (select (select (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_main_~p~0#1.base| v_ArrVal_1477) |c_ULTIMATE.start_main_~a~0#1.base|) .cse0) |c_ULTIMATE.start_main_~p~0#1.offset|)) (forall ((v_ArrVal_1475 (Array Int Int))) (= (select (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~p~0#1.base| v_ArrVal_1475) |c_ULTIMATE.start_main_~a~0#1.base|) .cse0) |c_ULTIMATE.start_main_~p~0#1.base|)))) is different from false [2022-10-16 14:11:14,692 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-10-16 14:11:14,693 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 22 treesize of output 23 [2022-10-16 14:11:14,699 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-10-16 14:11:14,700 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 36 treesize of output 35 [2022-10-16 14:11:14,705 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-10-16 14:11:14,717 INFO L356 Elim1Store]: treesize reduction 9, result has 10.0 percent of original size [2022-10-16 14:11:14,717 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 22 treesize of output 1 [2022-10-16 14:11:14,885 INFO L134 CoverageAnalysis]: Checked inductivity of 197 backedges. 18 proven. 2 refuted. 0 times theorem prover too weak. 174 trivial. 3 not checked. [2022-10-16 14:11:14,885 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1347327031] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:11:14,885 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:11:14,886 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [28, 9, 9] total 43 [2022-10-16 14:11:14,886 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1515266620] [2022-10-16 14:11:14,886 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:11:14,888 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 43 states [2022-10-16 14:11:14,888 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:11:14,889 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 43 interpolants. [2022-10-16 14:11:14,889 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=225, Invalid=1500, Unknown=1, NotChecked=80, Total=1806 [2022-10-16 14:11:14,889 INFO L87 Difference]: Start difference. First operand 454 states and 513 transitions. Second operand has 43 states, 43 states have (on average 3.116279069767442) internal successors, (134), 43 states have internal predecessors, (134), 0 states have call successors, (0), 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 14:11:16,516 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:11:16,516 INFO L93 Difference]: Finished difference Result 813 states and 917 transitions. [2022-10-16 14:11:16,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-10-16 14:11:16,516 INFO L78 Accepts]: Start accepts. Automaton has has 43 states, 43 states have (on average 3.116279069767442) internal successors, (134), 43 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 77 [2022-10-16 14:11:16,517 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:11:16,519 INFO L225 Difference]: With dead ends: 813 [2022-10-16 14:11:16,519 INFO L226 Difference]: Without dead ends: 503 [2022-10-16 14:11:16,521 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 224 GetRequests, 142 SyntacticMatches, 0 SemanticMatches, 82 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 1506 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=1263, Invalid=5546, Unknown=1, NotChecked=162, Total=6972 [2022-10-16 14:11:16,521 INFO L413 NwaCegarLoop]: 30 mSDtfsCounter, 330 mSDsluCounter, 481 mSDsCounter, 0 mSdLazyCounter, 568 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 330 SdHoareTripleChecker+Valid, 511 SdHoareTripleChecker+Invalid, 803 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 568 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 178 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-10-16 14:11:16,521 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [330 Valid, 511 Invalid, 803 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 568 Invalid, 0 Unknown, 178 Unchecked, 0.4s Time] [2022-10-16 14:11:16,522 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 503 states. [2022-10-16 14:11:16,574 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 503 to 482. [2022-10-16 14:11:16,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 482 states, 479 states have (on average 1.1252609603340293) internal successors, (539), 481 states have internal predecessors, (539), 0 states have call successors, (0), 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 14:11:16,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 482 states to 482 states and 539 transitions. [2022-10-16 14:11:16,576 INFO L78 Accepts]: Start accepts. Automaton has 482 states and 539 transitions. Word has length 77 [2022-10-16 14:11:16,576 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:11:16,576 INFO L495 AbstractCegarLoop]: Abstraction has 482 states and 539 transitions. [2022-10-16 14:11:16,577 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 43 states, 43 states have (on average 3.116279069767442) internal successors, (134), 43 states have internal predecessors, (134), 0 states have call successors, (0), 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 14:11:16,577 INFO L276 IsEmpty]: Start isEmpty. Operand 482 states and 539 transitions. [2022-10-16 14:11:16,578 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2022-10-16 14:11:16,578 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:11:16,578 INFO L195 NwaCegarLoop]: trace histogram [9, 8, 8, 8, 6, 5, 5, 5, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:11:16,613 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Forceful destruction successful, exit code 0 [2022-10-16 14:11:16,793 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable33 [2022-10-16 14:11:16,793 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-16 14:11:16,794 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:11:16,794 INFO L85 PathProgramCache]: Analyzing trace with hash 387417157, now seen corresponding path program 4 times [2022-10-16 14:11:16,794 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:11:16,794 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [286311364] [2022-10-16 14:11:16,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:11:16,794 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:11:16,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:11:17,555 INFO L134 CoverageAnalysis]: Checked inductivity of 191 backedges. 0 proven. 178 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2022-10-16 14:11:17,556 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:11:17,556 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [286311364] [2022-10-16 14:11:17,556 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [286311364] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:11:17,556 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [195533074] [2022-10-16 14:11:17,556 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-10-16 14:11:17,557 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:11:17,557 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:11:17,558 INFO L229 MonitoredProcess]: Starting monitored process 27 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 14:11:17,580 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Waiting until timeout for monitored process [2022-10-16 14:11:17,737 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-10-16 14:11:17,737 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 14:11:17,741 INFO L263 TraceCheckSpWp]: Trace formula consists of 383 conjuncts, 29 conjunts are in the unsatisfiable core [2022-10-16 14:11:17,744 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:11:18,533 INFO L134 CoverageAnalysis]: Checked inductivity of 191 backedges. 0 proven. 178 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2022-10-16 14:11:18,534 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:11:19,517 INFO L134 CoverageAnalysis]: Checked inductivity of 191 backedges. 0 proven. 178 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2022-10-16 14:11:19,518 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [195533074] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:11:19,518 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:11:19,518 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [28, 28, 28] total 82 [2022-10-16 14:11:19,519 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [728996982] [2022-10-16 14:11:19,519 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:11:19,519 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 83 states [2022-10-16 14:11:19,519 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:11:19,520 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 83 interpolants. [2022-10-16 14:11:19,521 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1325, Invalid=5481, Unknown=0, NotChecked=0, Total=6806 [2022-10-16 14:11:19,521 INFO L87 Difference]: Start difference. First operand 482 states and 539 transitions. Second operand has 83 states, 82 states have (on average 2.3780487804878048) internal successors, (195), 83 states have internal predecessors, (195), 0 states have call successors, (0), 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 14:11:21,006 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:11:21,007 INFO L93 Difference]: Finished difference Result 609 states and 676 transitions. [2022-10-16 14:11:21,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 71 states. [2022-10-16 14:11:21,007 INFO L78 Accepts]: Start accepts. Automaton has has 83 states, 82 states have (on average 2.3780487804878048) internal successors, (195), 83 states have internal predecessors, (195), 0 states have call successors, (0), 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 84 [2022-10-16 14:11:21,008 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:11:21,011 INFO L225 Difference]: With dead ends: 609 [2022-10-16 14:11:21,011 INFO L226 Difference]: Without dead ends: 590 [2022-10-16 14:11:21,014 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 236 GetRequests, 113 SyntacticMatches, 0 SemanticMatches, 123 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4883 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=3128, Invalid=12372, Unknown=0, NotChecked=0, Total=15500 [2022-10-16 14:11:21,014 INFO L413 NwaCegarLoop]: 28 mSDtfsCounter, 406 mSDsluCounter, 395 mSDsCounter, 0 mSdLazyCounter, 377 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 406 SdHoareTripleChecker+Valid, 423 SdHoareTripleChecker+Invalid, 431 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 377 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-16 14:11:21,014 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [406 Valid, 423 Invalid, 431 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 377 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-16 14:11:21,015 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 590 states. [2022-10-16 14:11:21,081 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 590 to 456. [2022-10-16 14:11:21,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 456 states, 453 states have (on average 1.1324503311258278) internal successors, (513), 455 states have internal predecessors, (513), 0 states have call successors, (0), 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 14:11:21,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 456 states to 456 states and 513 transitions. [2022-10-16 14:11:21,084 INFO L78 Accepts]: Start accepts. Automaton has 456 states and 513 transitions. Word has length 84 [2022-10-16 14:11:21,084 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:11:21,084 INFO L495 AbstractCegarLoop]: Abstraction has 456 states and 513 transitions. [2022-10-16 14:11:21,085 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 83 states, 82 states have (on average 2.3780487804878048) internal successors, (195), 83 states have internal predecessors, (195), 0 states have call successors, (0), 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 14:11:21,085 INFO L276 IsEmpty]: Start isEmpty. Operand 456 states and 513 transitions. [2022-10-16 14:11:21,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2022-10-16 14:11:21,086 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:11:21,086 INFO L195 NwaCegarLoop]: trace histogram [12, 11, 11, 11, 5, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:11:21,123 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Forceful destruction successful, exit code 0 [2022-10-16 14:11:21,301 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable34 [2022-10-16 14:11:21,302 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-16 14:11:21,302 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:11:21,303 INFO L85 PathProgramCache]: Analyzing trace with hash 1876053815, now seen corresponding path program 5 times [2022-10-16 14:11:21,303 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:11:21,303 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1387182297] [2022-10-16 14:11:21,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:11:21,304 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:11:21,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:11:22,167 INFO L134 CoverageAnalysis]: Checked inductivity of 287 backedges. 0 proven. 274 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2022-10-16 14:11:22,167 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:11:22,168 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1387182297] [2022-10-16 14:11:22,168 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1387182297] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:11:22,168 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1567656617] [2022-10-16 14:11:22,168 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-10-16 14:11:22,168 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:11:22,168 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:11:22,169 INFO L229 MonitoredProcess]: Starting monitored process 28 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 14:11:22,175 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Waiting until timeout for monitored process [2022-10-16 14:11:22,348 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 12 check-sat command(s) [2022-10-16 14:11:22,349 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 14:11:22,351 INFO L263 TraceCheckSpWp]: Trace formula consists of 411 conjuncts, 33 conjunts are in the unsatisfiable core [2022-10-16 14:11:22,355 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:11:23,250 INFO L134 CoverageAnalysis]: Checked inductivity of 287 backedges. 0 proven. 274 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2022-10-16 14:11:23,251 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:11:24,366 INFO L134 CoverageAnalysis]: Checked inductivity of 287 backedges. 0 proven. 274 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2022-10-16 14:11:24,366 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1567656617] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:11:24,366 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:11:24,366 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [32, 32, 32] total 94 [2022-10-16 14:11:24,367 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2064134710] [2022-10-16 14:11:24,367 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:11:24,370 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 95 states [2022-10-16 14:11:24,370 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:11:24,371 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 95 interpolants. [2022-10-16 14:11:24,372 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1793, Invalid=7137, Unknown=0, NotChecked=0, Total=8930 [2022-10-16 14:11:24,373 INFO L87 Difference]: Start difference. First operand 456 states and 513 transitions. Second operand has 95 states, 94 states have (on average 2.3297872340425534) internal successors, (219), 95 states have internal predecessors, (219), 0 states have call successors, (0), 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 14:11:25,778 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:11:25,778 INFO L93 Difference]: Finished difference Result 611 states and 680 transitions. [2022-10-16 14:11:25,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 71 states. [2022-10-16 14:11:25,779 INFO L78 Accepts]: Start accepts. Automaton has has 95 states, 94 states have (on average 2.3297872340425534) internal successors, (219), 95 states have internal predecessors, (219), 0 states have call successors, (0), 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 92 [2022-10-16 14:11:25,779 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:11:25,782 INFO L225 Difference]: With dead ends: 611 [2022-10-16 14:11:25,782 INFO L226 Difference]: Without dead ends: 574 [2022-10-16 14:11:25,784 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 252 GetRequests, 121 SyntacticMatches, 0 SemanticMatches, 131 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6467 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=3782, Invalid=13774, Unknown=0, NotChecked=0, Total=17556 [2022-10-16 14:11:25,785 INFO L413 NwaCegarLoop]: 28 mSDtfsCounter, 436 mSDsluCounter, 408 mSDsCounter, 0 mSdLazyCounter, 409 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 436 SdHoareTripleChecker+Valid, 436 SdHoareTripleChecker+Invalid, 472 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 409 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-10-16 14:11:25,791 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [436 Valid, 436 Invalid, 472 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 409 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-10-16 14:11:25,792 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 574 states. [2022-10-16 14:11:25,871 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 574 to 492. [2022-10-16 14:11:25,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 492 states, 489 states have (on average 1.1226993865030674) internal successors, (549), 491 states have internal predecessors, (549), 0 states have call successors, (0), 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 14:11:25,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 492 states to 492 states and 549 transitions. [2022-10-16 14:11:25,873 INFO L78 Accepts]: Start accepts. Automaton has 492 states and 549 transitions. Word has length 92 [2022-10-16 14:11:25,874 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:11:25,874 INFO L495 AbstractCegarLoop]: Abstraction has 492 states and 549 transitions. [2022-10-16 14:11:25,874 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 95 states, 94 states have (on average 2.3297872340425534) internal successors, (219), 95 states have internal predecessors, (219), 0 states have call successors, (0), 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 14:11:25,874 INFO L276 IsEmpty]: Start isEmpty. Operand 492 states and 549 transitions. [2022-10-16 14:11:25,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2022-10-16 14:11:25,876 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:11:25,876 INFO L195 NwaCegarLoop]: trace histogram [10, 9, 9, 9, 7, 6, 6, 6, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:11:25,914 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Forceful destruction successful, exit code 0 [2022-10-16 14:11:26,090 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable35 [2022-10-16 14:11:26,091 INFO L420 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-16 14:11:26,091 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:11:26,092 INFO L85 PathProgramCache]: Analyzing trace with hash 1073479799, now seen corresponding path program 6 times [2022-10-16 14:11:26,092 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:11:26,092 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2036262245] [2022-10-16 14:11:26,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:11:26,093 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:11:26,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:11:27,013 INFO L134 CoverageAnalysis]: Checked inductivity of 247 backedges. 0 proven. 234 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2022-10-16 14:11:27,014 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:11:27,014 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2036262245] [2022-10-16 14:11:27,014 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2036262245] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:11:27,014 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1495248474] [2022-10-16 14:11:27,014 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-10-16 14:11:27,015 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:11:27,015 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:11:27,016 INFO L229 MonitoredProcess]: Starting monitored process 29 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 14:11:27,031 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Waiting until timeout for monitored process [2022-10-16 14:11:27,203 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 5 check-sat command(s) [2022-10-16 14:11:27,203 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 14:11:27,207 INFO L263 TraceCheckSpWp]: Trace formula consists of 285 conjuncts, 53 conjunts are in the unsatisfiable core [2022-10-16 14:11:27,211 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:11:27,217 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-10-16 14:11:27,315 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-10-16 14:11:27,327 INFO L356 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-10-16 14:11:27,327 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2022-10-16 14:11:27,397 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 14:11:27,399 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-10-16 14:11:27,457 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-10-16 14:11:27,510 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-10-16 14:11:27,570 INFO L356 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-10-16 14:11:27,571 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 22 treesize of output 29 [2022-10-16 14:11:27,637 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-10-16 14:11:27,637 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 31 treesize of output 23 [2022-10-16 14:11:27,680 INFO L134 CoverageAnalysis]: Checked inductivity of 247 backedges. 18 proven. 13 refuted. 0 times theorem prover too weak. 216 trivial. 0 not checked. [2022-10-16 14:11:27,680 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:11:29,209 WARN L833 $PredicateComparison]: unable to prove that (forall ((|ULTIMATE.start_main_~p~0#1.base| Int) (v_ArrVal_1743 Int)) (not (= (select (select (store |c_#memory_int| |ULTIMATE.start_main_~p~0#1.base| (store (store (select |c_#memory_int| |ULTIMATE.start_main_~p~0#1.base|) |c_ULTIMATE.start_main_~p~0#1.offset| 3) (+ |c_ULTIMATE.start_main_~p~0#1.offset| 4) v_ArrVal_1743)) |c_ULTIMATE.start_main_~a~0#1.base|) |c_ULTIMATE.start_main_~a~0#1.offset|) 1))) is different from false [2022-10-16 14:11:29,229 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1743 Int) (|v_ULTIMATE.start_main_~p~0#1.base_210| Int) (v_ArrVal_1738 (Array Int Int))) (not (= (select (select (let ((.cse0 (store |c_#memory_int| |c_ULTIMATE.start_main_~p~0#1.base| v_ArrVal_1738))) (store .cse0 |v_ULTIMATE.start_main_~p~0#1.base_210| (store (store (select .cse0 |v_ULTIMATE.start_main_~p~0#1.base_210|) |c_ULTIMATE.start_main_~t~0#1.offset| 3) (+ |c_ULTIMATE.start_main_~t~0#1.offset| 4) v_ArrVal_1743))) |c_ULTIMATE.start_main_~a~0#1.base|) |c_ULTIMATE.start_main_~a~0#1.offset|) 1))) is different from false [2022-10-16 14:11:29,240 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1743 Int) (|v_ULTIMATE.start_main_~p~0#1.base_210| Int) (v_ArrVal_1738 (Array Int Int))) (not (= (select (select (let ((.cse0 (store |c_#memory_int| |c_ULTIMATE.start_main_~p~0#1.base| v_ArrVal_1738))) (store .cse0 |v_ULTIMATE.start_main_~p~0#1.base_210| (store (store (select .cse0 |v_ULTIMATE.start_main_~p~0#1.base_210|) 0 3) 4 v_ArrVal_1743))) |c_ULTIMATE.start_main_~a~0#1.base|) |c_ULTIMATE.start_main_~a~0#1.offset|) 1))) is different from false [2022-10-16 14:11:29,267 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1743 Int) (|v_ULTIMATE.start_main_~p~0#1.base_210| Int) (v_ArrVal_1738 (Array Int Int)) (v_ArrVal_1735 Int)) (not (= (select (select (let ((.cse0 (store (store |c_#memory_int| |c_ULTIMATE.start_main_~p~0#1.base| (store (select |c_#memory_int| |c_ULTIMATE.start_main_~p~0#1.base|) (+ |c_ULTIMATE.start_main_~p~0#1.offset| 4) v_ArrVal_1735)) |c_ULTIMATE.start_main_~t~0#1.base| v_ArrVal_1738))) (store .cse0 |v_ULTIMATE.start_main_~p~0#1.base_210| (store (store (select .cse0 |v_ULTIMATE.start_main_~p~0#1.base_210|) 0 3) 4 v_ArrVal_1743))) |c_ULTIMATE.start_main_~a~0#1.base|) |c_ULTIMATE.start_main_~a~0#1.offset|) 1))) is different from false [2022-10-16 14:11:29,286 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-10-16 14:11:29,287 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 51 treesize of output 44 [2022-10-16 14:11:29,304 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-10-16 14:11:29,305 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 241 treesize of output 249 [2022-10-16 14:11:29,315 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 270 treesize of output 260 [2022-10-16 14:11:29,414 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2022-10-16 14:11:29,443 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2022-10-16 14:11:29,451 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2022-10-16 14:11:29,476 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-10-16 14:11:29,476 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 65 treesize of output 69 [2022-10-16 14:11:29,569 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-10-16 14:11:29,570 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 101 treesize of output 101 [2022-10-16 14:11:29,848 INFO L134 CoverageAnalysis]: Checked inductivity of 247 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 216 trivial. 13 not checked. [2022-10-16 14:11:29,849 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1495248474] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:11:29,849 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:11:29,849 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [32, 10, 10] total 49 [2022-10-16 14:11:29,849 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1223834673] [2022-10-16 14:11:29,850 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:11:29,851 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 49 states [2022-10-16 14:11:29,851 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:11:29,852 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 49 interpolants. [2022-10-16 14:11:29,853 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=278, Invalid=1714, Unknown=4, NotChecked=356, Total=2352 [2022-10-16 14:11:29,853 INFO L87 Difference]: Start difference. First operand 492 states and 549 transitions. Second operand has 49 states, 49 states have (on average 3.020408163265306) internal successors, (148), 49 states have internal predecessors, (148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:11:30,011 WARN L833 $PredicateComparison]: unable to prove that (and (forall ((v_ArrVal_1743 Int) (|v_ULTIMATE.start_main_~p~0#1.base_210| Int) (v_ArrVal_1738 (Array Int Int))) (not (= (select (select (let ((.cse0 (store |c_#memory_int| |c_ULTIMATE.start_main_~p~0#1.base| v_ArrVal_1738))) (store .cse0 |v_ULTIMATE.start_main_~p~0#1.base_210| (store (store (select .cse0 |v_ULTIMATE.start_main_~p~0#1.base_210|) 0 3) 4 v_ArrVal_1743))) |c_ULTIMATE.start_main_~a~0#1.base|) |c_ULTIMATE.start_main_~a~0#1.offset|) 1))) (= |c_ULTIMATE.start_main_~t~0#1.offset| 0) (not (= |c_ULTIMATE.start_main_~p~0#1.base| |c_ULTIMATE.start_main_~a~0#1.base|)) (= |c_ULTIMATE.start_main_~a~0#1.offset| 0) (= |c_ULTIMATE.start_main_~p~0#1.offset| 0) (= 2 (select (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) |c_ULTIMATE.start_main_~a~0#1.offset|))) is different from false [2022-10-16 14:11:30,019 WARN L833 $PredicateComparison]: unable to prove that (and (forall ((v_ArrVal_1743 Int) (|v_ULTIMATE.start_main_~p~0#1.base_210| Int) (v_ArrVal_1738 (Array Int Int))) (not (= (select (select (let ((.cse0 (store |c_#memory_int| |c_ULTIMATE.start_main_~p~0#1.base| v_ArrVal_1738))) (store .cse0 |v_ULTIMATE.start_main_~p~0#1.base_210| (store (store (select .cse0 |v_ULTIMATE.start_main_~p~0#1.base_210|) 0 3) 4 v_ArrVal_1743))) |c_ULTIMATE.start_main_~a~0#1.base|) |c_ULTIMATE.start_main_~a~0#1.offset|) 1))) (not (= |c_ULTIMATE.start_main_~p~0#1.base| |c_ULTIMATE.start_main_~a~0#1.base|)) (= |c_ULTIMATE.start_main_~a~0#1.offset| 0) (= |c_ULTIMATE.start_main_~p~0#1.offset| 0) (= 2 (select (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) |c_ULTIMATE.start_main_~a~0#1.offset|))) is different from false [2022-10-16 14:11:30,030 WARN L833 $PredicateComparison]: unable to prove that (and (= |c_ULTIMATE.start_main_~t~0#1.offset| 0) (not (= |c_ULTIMATE.start_main_~p~0#1.base| |c_ULTIMATE.start_main_~a~0#1.base|)) (= |c_ULTIMATE.start_main_~a~0#1.offset| 0) (= |c_ULTIMATE.start_main_~p~0#1.offset| 0) (forall ((v_ArrVal_1743 Int) (|v_ULTIMATE.start_main_~p~0#1.base_210| Int) (v_ArrVal_1738 (Array Int Int))) (not (= (select (select (let ((.cse0 (store |c_#memory_int| |c_ULTIMATE.start_main_~p~0#1.base| v_ArrVal_1738))) (store .cse0 |v_ULTIMATE.start_main_~p~0#1.base_210| (store (store (select .cse0 |v_ULTIMATE.start_main_~p~0#1.base_210|) |c_ULTIMATE.start_main_~t~0#1.offset| 3) (+ |c_ULTIMATE.start_main_~t~0#1.offset| 4) v_ArrVal_1743))) |c_ULTIMATE.start_main_~a~0#1.base|) |c_ULTIMATE.start_main_~a~0#1.offset|) 1))) (= 2 (select (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) |c_ULTIMATE.start_main_~a~0#1.offset|))) is different from false [2022-10-16 14:11:32,038 WARN L833 $PredicateComparison]: unable to prove that (and (forall ((|ULTIMATE.start_main_~p~0#1.base| Int) (v_ArrVal_1743 Int)) (not (= (select (select (store |c_#memory_int| |ULTIMATE.start_main_~p~0#1.base| (store (store (select |c_#memory_int| |ULTIMATE.start_main_~p~0#1.base|) |c_ULTIMATE.start_main_~p~0#1.offset| 3) (+ |c_ULTIMATE.start_main_~p~0#1.offset| 4) v_ArrVal_1743)) |c_ULTIMATE.start_main_~a~0#1.base|) |c_ULTIMATE.start_main_~a~0#1.offset|) 1))) (= |c_ULTIMATE.start_main_~a~0#1.offset| 0) (= |c_ULTIMATE.start_main_~p~0#1.offset| 0) (= 2 (select (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) |c_ULTIMATE.start_main_~a~0#1.offset|))) is different from false [2022-10-16 14:11:32,885 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:11:32,886 INFO L93 Difference]: Finished difference Result 912 states and 1019 transitions. [2022-10-16 14:11:32,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2022-10-16 14:11:32,886 INFO L78 Accepts]: Start accepts. Automaton has has 49 states, 49 states have (on average 3.020408163265306) internal successors, (148), 49 states have internal predecessors, (148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 92 [2022-10-16 14:11:32,886 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:11:32,889 INFO L225 Difference]: With dead ends: 912 [2022-10-16 14:11:32,889 INFO L226 Difference]: Without dead ends: 557 [2022-10-16 14:11:32,891 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 249 GetRequests, 169 SyntacticMatches, 1 SemanticMatches, 79 ConstructedPredicates, 8 IntricatePredicates, 0 DeprecatedPredicates, 1053 ImplicationChecksByTransitivity, 4.9s TimeCoverageRelationStatistics Valid=921, Invalid=4359, Unknown=8, NotChecked=1192, Total=6480 [2022-10-16 14:11:32,891 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 223 mSDsluCounter, 349 mSDsCounter, 0 mSdLazyCounter, 322 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 223 SdHoareTripleChecker+Valid, 367 SdHoareTripleChecker+Invalid, 748 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 322 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 400 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-16 14:11:32,892 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [223 Valid, 367 Invalid, 748 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 322 Invalid, 0 Unknown, 400 Unchecked, 0.2s Time] [2022-10-16 14:11:32,892 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 557 states. [2022-10-16 14:11:32,977 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 557 to 531. [2022-10-16 14:11:32,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 531 states, 528 states have (on average 1.1193181818181819) internal successors, (591), 530 states have internal predecessors, (591), 0 states have call successors, (0), 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 14:11:32,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 531 states to 531 states and 591 transitions. [2022-10-16 14:11:32,980 INFO L78 Accepts]: Start accepts. Automaton has 531 states and 591 transitions. Word has length 92 [2022-10-16 14:11:32,980 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:11:32,980 INFO L495 AbstractCegarLoop]: Abstraction has 531 states and 591 transitions. [2022-10-16 14:11:32,980 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 49 states, 49 states have (on average 3.020408163265306) internal successors, (148), 49 states have internal predecessors, (148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:11:32,981 INFO L276 IsEmpty]: Start isEmpty. Operand 531 states and 591 transitions. [2022-10-16 14:11:32,982 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-10-16 14:11:32,982 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:11:32,982 INFO L195 NwaCegarLoop]: trace histogram [10, 9, 9, 9, 8, 7, 7, 7, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:11:33,017 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Forceful destruction successful, exit code 0 [2022-10-16 14:11:33,195 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36,29 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:11:33,195 INFO L420 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-16 14:11:33,196 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:11:33,196 INFO L85 PathProgramCache]: Analyzing trace with hash -1617948178, now seen corresponding path program 1 times [2022-10-16 14:11:33,197 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:11:33,197 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1166443482] [2022-10-16 14:11:33,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:11:33,197 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:11:33,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:11:33,399 INFO L134 CoverageAnalysis]: Checked inductivity of 273 backedges. 2 proven. 11 refuted. 0 times theorem prover too weak. 260 trivial. 0 not checked. [2022-10-16 14:11:33,399 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:11:33,399 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1166443482] [2022-10-16 14:11:33,399 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1166443482] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:11:33,400 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1025605070] [2022-10-16 14:11:33,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:11:33,400 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:11:33,400 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:11:33,401 INFO L229 MonitoredProcess]: Starting monitored process 30 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 14:11:33,422 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Waiting until timeout for monitored process [2022-10-16 14:11:33,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:11:33,604 INFO L263 TraceCheckSpWp]: Trace formula consists of 422 conjuncts, 7 conjunts are in the unsatisfiable core [2022-10-16 14:11:33,608 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:11:33,656 INFO L134 CoverageAnalysis]: Checked inductivity of 273 backedges. 2 proven. 11 refuted. 0 times theorem prover too weak. 260 trivial. 0 not checked. [2022-10-16 14:11:33,656 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:11:33,728 INFO L134 CoverageAnalysis]: Checked inductivity of 273 backedges. 2 proven. 11 refuted. 0 times theorem prover too weak. 260 trivial. 0 not checked. [2022-10-16 14:11:33,729 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1025605070] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:11:33,729 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:11:33,729 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 15 [2022-10-16 14:11:33,729 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [421737134] [2022-10-16 14:11:33,729 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:11:33,730 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-10-16 14:11:33,730 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:11:33,730 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-10-16 14:11:33,731 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=152, Unknown=0, NotChecked=0, Total=210 [2022-10-16 14:11:33,731 INFO L87 Difference]: Start difference. First operand 531 states and 591 transitions. Second operand has 15 states, 15 states have (on average 4.666666666666667) internal successors, (70), 15 states have internal predecessors, (70), 0 states have call successors, (0), 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 14:11:33,961 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:11:33,961 INFO L93 Difference]: Finished difference Result 1075 states and 1197 transitions. [2022-10-16 14:11:33,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-10-16 14:11:33,962 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 4.666666666666667) internal successors, (70), 15 states have internal predecessors, (70), 0 states have call successors, (0), 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 96 [2022-10-16 14:11:33,962 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:11:33,965 INFO L225 Difference]: With dead ends: 1075 [2022-10-16 14:11:33,965 INFO L226 Difference]: Without dead ends: 569 [2022-10-16 14:11:33,966 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 207 GetRequests, 185 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 101 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=145, Invalid=407, Unknown=0, NotChecked=0, Total=552 [2022-10-16 14:11:33,966 INFO L413 NwaCegarLoop]: 36 mSDtfsCounter, 85 mSDsluCounter, 114 mSDsCounter, 0 mSdLazyCounter, 71 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 85 SdHoareTripleChecker+Valid, 150 SdHoareTripleChecker+Invalid, 92 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 71 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 14:11:33,967 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [85 Valid, 150 Invalid, 92 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 71 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 14:11:33,968 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 569 states. [2022-10-16 14:11:34,061 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 569 to 561. [2022-10-16 14:11:34,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 561 states, 558 states have (on average 1.1129032258064515) internal successors, (621), 560 states have internal predecessors, (621), 0 states have call successors, (0), 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 14:11:34,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 561 states to 561 states and 621 transitions. [2022-10-16 14:11:34,065 INFO L78 Accepts]: Start accepts. Automaton has 561 states and 621 transitions. Word has length 96 [2022-10-16 14:11:34,065 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:11:34,065 INFO L495 AbstractCegarLoop]: Abstraction has 561 states and 621 transitions. [2022-10-16 14:11:34,065 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 4.666666666666667) internal successors, (70), 15 states have internal predecessors, (70), 0 states have call successors, (0), 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 14:11:34,065 INFO L276 IsEmpty]: Start isEmpty. Operand 561 states and 621 transitions. [2022-10-16 14:11:34,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-10-16 14:11:34,067 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:11:34,067 INFO L195 NwaCegarLoop]: trace histogram [10, 9, 9, 9, 8, 7, 7, 7, 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, 1] [2022-10-16 14:11:34,109 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Forceful destruction successful, exit code 0 [2022-10-16 14:11:34,280 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable37 [2022-10-16 14:11:34,281 INFO L420 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-16 14:11:34,282 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:11:34,282 INFO L85 PathProgramCache]: Analyzing trace with hash -977061626, now seen corresponding path program 1 times [2022-10-16 14:11:34,283 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:11:34,283 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [593692299] [2022-10-16 14:11:34,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:11:34,284 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:11:34,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:11:35,254 INFO L134 CoverageAnalysis]: Checked inductivity of 266 backedges. 0 proven. 260 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-10-16 14:11:35,254 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:11:35,254 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [593692299] [2022-10-16 14:11:35,254 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [593692299] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:11:35,255 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1260467543] [2022-10-16 14:11:35,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:11:35,255 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:11:35,255 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:11:35,256 INFO L229 MonitoredProcess]: Starting monitored process 31 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 14:11:35,278 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Waiting until timeout for monitored process [2022-10-16 14:11:35,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:11:35,432 INFO L263 TraceCheckSpWp]: Trace formula consists of 425 conjuncts, 35 conjunts are in the unsatisfiable core [2022-10-16 14:11:35,435 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:11:36,592 INFO L134 CoverageAnalysis]: Checked inductivity of 266 backedges. 0 proven. 260 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-10-16 14:11:36,593 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:11:37,951 INFO L134 CoverageAnalysis]: Checked inductivity of 266 backedges. 0 proven. 260 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-10-16 14:11:37,951 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1260467543] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:11:37,951 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:11:37,952 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [34, 34, 34] total 100 [2022-10-16 14:11:37,952 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1778552503] [2022-10-16 14:11:37,952 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:11:37,952 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 101 states [2022-10-16 14:11:37,952 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:11:37,953 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 101 interpolants. [2022-10-16 14:11:37,954 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1918, Invalid=8182, Unknown=0, NotChecked=0, Total=10100 [2022-10-16 14:11:37,954 INFO L87 Difference]: Start difference. First operand 561 states and 621 transitions. Second operand has 101 states, 100 states have (on average 2.36) internal successors, (236), 101 states have internal predecessors, (236), 0 states have call successors, (0), 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 14:11:40,037 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:11:40,038 INFO L93 Difference]: Finished difference Result 704 states and 778 transitions. [2022-10-16 14:11:40,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 85 states. [2022-10-16 14:11:40,038 INFO L78 Accepts]: Start accepts. Automaton has has 101 states, 100 states have (on average 2.36) internal successors, (236), 101 states have internal predecessors, (236), 0 states have call successors, (0), 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 96 [2022-10-16 14:11:40,039 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:11:40,041 INFO L225 Difference]: With dead ends: 704 [2022-10-16 14:11:40,041 INFO L226 Difference]: Without dead ends: 679 [2022-10-16 14:11:40,043 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 274 GetRequests, 125 SyntacticMatches, 0 SemanticMatches, 149 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7464 ImplicationChecksByTransitivity, 4.1s TimeCoverageRelationStatistics Valid=4518, Invalid=18132, Unknown=0, NotChecked=0, Total=22650 [2022-10-16 14:11:40,044 INFO L413 NwaCegarLoop]: 28 mSDtfsCounter, 867 mSDsluCounter, 375 mSDsCounter, 0 mSdLazyCounter, 385 mSolverCounterSat, 123 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 867 SdHoareTripleChecker+Valid, 403 SdHoareTripleChecker+Invalid, 508 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 123 IncrementalHoareTripleChecker+Valid, 385 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-10-16 14:11:40,044 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [867 Valid, 403 Invalid, 508 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [123 Valid, 385 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-10-16 14:11:40,045 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 679 states. [2022-10-16 14:11:40,132 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 679 to 555. [2022-10-16 14:11:40,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 555 states, 552 states have (on average 1.1141304347826086) internal successors, (615), 554 states have internal predecessors, (615), 0 states have call successors, (0), 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 14:11:40,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 555 states to 555 states and 615 transitions. [2022-10-16 14:11:40,135 INFO L78 Accepts]: Start accepts. Automaton has 555 states and 615 transitions. Word has length 96 [2022-10-16 14:11:40,135 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:11:40,135 INFO L495 AbstractCegarLoop]: Abstraction has 555 states and 615 transitions. [2022-10-16 14:11:40,136 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 101 states, 100 states have (on average 2.36) internal successors, (236), 101 states have internal predecessors, (236), 0 states have call successors, (0), 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 14:11:40,136 INFO L276 IsEmpty]: Start isEmpty. Operand 555 states and 615 transitions. [2022-10-16 14:11:40,137 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2022-10-16 14:11:40,137 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:11:40,138 INFO L195 NwaCegarLoop]: trace histogram [11, 10, 10, 10, 9, 8, 8, 8, 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, 1] [2022-10-16 14:11:40,174 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Forceful destruction successful, exit code 0 [2022-10-16 14:11:40,351 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 31 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable38 [2022-10-16 14:11:40,351 INFO L420 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-16 14:11:40,352 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:11:40,352 INFO L85 PathProgramCache]: Analyzing trace with hash -650697672, now seen corresponding path program 2 times [2022-10-16 14:11:40,352 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:11:40,353 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1728450735] [2022-10-16 14:11:40,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:11:40,354 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:11:40,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:11:41,524 INFO L134 CoverageAnalysis]: Checked inductivity of 334 backedges. 0 proven. 328 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-10-16 14:11:41,524 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:11:41,525 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1728450735] [2022-10-16 14:11:41,525 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1728450735] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:11:41,525 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1201682113] [2022-10-16 14:11:41,525 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-16 14:11:41,525 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:11:41,526 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:11:41,527 INFO L229 MonitoredProcess]: Starting monitored process 32 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 14:11:41,528 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Waiting until timeout for monitored process [2022-10-16 14:11:41,715 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-10-16 14:11:41,715 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 14:11:41,717 INFO L263 TraceCheckSpWp]: Trace formula consists of 453 conjuncts, 39 conjunts are in the unsatisfiable core [2022-10-16 14:11:41,721 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:11:43,089 INFO L134 CoverageAnalysis]: Checked inductivity of 334 backedges. 0 proven. 328 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-10-16 14:11:43,090 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:11:44,751 INFO L134 CoverageAnalysis]: Checked inductivity of 334 backedges. 0 proven. 328 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-10-16 14:11:44,751 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1201682113] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:11:44,751 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:11:44,751 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [38, 38, 38] total 112 [2022-10-16 14:11:44,752 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [884388676] [2022-10-16 14:11:44,752 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:11:44,752 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 113 states [2022-10-16 14:11:44,753 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:11:44,753 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 113 interpolants. [2022-10-16 14:11:44,754 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2381, Invalid=10275, Unknown=0, NotChecked=0, Total=12656 [2022-10-16 14:11:44,755 INFO L87 Difference]: Start difference. First operand 555 states and 615 transitions. Second operand has 113 states, 112 states have (on average 2.3214285714285716) internal successors, (260), 113 states have internal predecessors, (260), 0 states have call successors, (0), 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 14:11:47,222 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:11:47,222 INFO L93 Difference]: Finished difference Result 747 states and 823 transitions. [2022-10-16 14:11:47,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 95 states. [2022-10-16 14:11:47,223 INFO L78 Accepts]: Start accepts. Automaton has has 113 states, 112 states have (on average 2.3214285714285716) internal successors, (260), 113 states have internal predecessors, (260), 0 states have call successors, (0), 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 104 [2022-10-16 14:11:47,223 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:11:47,226 INFO L225 Difference]: With dead ends: 747 [2022-10-16 14:11:47,226 INFO L226 Difference]: Without dead ends: 719 [2022-10-16 14:11:47,229 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 300 GetRequests, 133 SyntacticMatches, 0 SemanticMatches, 167 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9479 ImplicationChecksByTransitivity, 5.1s TimeCoverageRelationStatistics Valid=5624, Invalid=22768, Unknown=0, NotChecked=0, Total=28392 [2022-10-16 14:11:47,230 INFO L413 NwaCegarLoop]: 28 mSDtfsCounter, 770 mSDsluCounter, 423 mSDsCounter, 0 mSdLazyCounter, 438 mSolverCounterSat, 104 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 770 SdHoareTripleChecker+Valid, 451 SdHoareTripleChecker+Invalid, 542 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 104 IncrementalHoareTripleChecker+Valid, 438 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-10-16 14:11:47,230 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [770 Valid, 451 Invalid, 542 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [104 Valid, 438 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-10-16 14:11:47,231 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 719 states. [2022-10-16 14:11:47,343 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 719 to 567. [2022-10-16 14:11:47,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 567 states, 564 states have (on average 1.1117021276595744) internal successors, (627), 566 states have internal predecessors, (627), 0 states have call successors, (0), 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 14:11:47,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 567 states to 567 states and 627 transitions. [2022-10-16 14:11:47,346 INFO L78 Accepts]: Start accepts. Automaton has 567 states and 627 transitions. Word has length 104 [2022-10-16 14:11:47,346 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:11:47,346 INFO L495 AbstractCegarLoop]: Abstraction has 567 states and 627 transitions. [2022-10-16 14:11:47,346 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 113 states, 112 states have (on average 2.3214285714285716) internal successors, (260), 113 states have internal predecessors, (260), 0 states have call successors, (0), 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 14:11:47,347 INFO L276 IsEmpty]: Start isEmpty. Operand 567 states and 627 transitions. [2022-10-16 14:11:47,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2022-10-16 14:11:47,348 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:11:47,349 INFO L195 NwaCegarLoop]: trace histogram [12, 11, 11, 11, 10, 9, 9, 9, 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, 1] [2022-10-16 14:11:47,386 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Forceful destruction successful, exit code 0 [2022-10-16 14:11:47,562 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 32 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable39 [2022-10-16 14:11:47,562 INFO L420 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-16 14:11:47,564 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:11:47,564 INFO L85 PathProgramCache]: Analyzing trace with hash -1711563414, now seen corresponding path program 3 times [2022-10-16 14:11:47,564 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:11:47,564 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [697785495] [2022-10-16 14:11:47,564 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:11:47,565 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:11:47,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:11:48,941 INFO L134 CoverageAnalysis]: Checked inductivity of 410 backedges. 0 proven. 404 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-10-16 14:11:48,941 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:11:48,941 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [697785495] [2022-10-16 14:11:48,941 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [697785495] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:11:48,941 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [32446027] [2022-10-16 14:11:48,942 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-10-16 14:11:48,942 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:11:48,942 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:11:48,943 INFO L229 MonitoredProcess]: Starting monitored process 33 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 14:11:48,943 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Waiting until timeout for monitored process [2022-10-16 14:11:49,405 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 7 check-sat command(s) [2022-10-16 14:11:49,405 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 14:11:49,408 INFO L263 TraceCheckSpWp]: Trace formula consists of 369 conjuncts, 76 conjunts are in the unsatisfiable core [2022-10-16 14:11:49,417 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:11:49,426 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-10-16 14:11:49,537 INFO L356 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-10-16 14:11:49,538 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2022-10-16 14:11:49,617 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-10-16 14:11:49,630 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-10-16 14:11:49,830 INFO L356 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-10-16 14:11:49,831 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 37 treesize of output 35 [2022-10-16 14:11:49,847 INFO L356 Elim1Store]: treesize reduction 8, result has 65.2 percent of original size [2022-10-16 14:11:49,847 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 22 treesize of output 24 [2022-10-16 14:11:49,859 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 14:11:49,861 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 25 [2022-10-16 14:11:49,869 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-10-16 14:11:49,974 INFO L173 IndexEqualityManager]: detected equality via solver [2022-10-16 14:11:49,983 INFO L356 Elim1Store]: treesize reduction 19, result has 32.1 percent of original size [2022-10-16 14:11:49,984 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 154 treesize of output 102 [2022-10-16 14:11:49,993 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 14:11:49,994 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 51 treesize of output 44 [2022-10-16 14:11:49,998 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 131 treesize of output 97 [2022-10-16 14:11:50,185 INFO L356 Elim1Store]: treesize reduction 36, result has 23.4 percent of original size [2022-10-16 14:11:50,185 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 93 treesize of output 74 [2022-10-16 14:11:50,192 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 14:11:50,194 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 38 [2022-10-16 14:11:50,201 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 28 [2022-10-16 14:11:50,304 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 14:11:50,305 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 10 [2022-10-16 14:11:50,310 INFO L356 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-10-16 14:11:50,311 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 47 treesize of output 26 [2022-10-16 14:11:50,417 INFO L134 CoverageAnalysis]: Checked inductivity of 410 backedges. 60 proven. 8 refuted. 0 times theorem prover too weak. 342 trivial. 0 not checked. [2022-10-16 14:11:50,418 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:11:50,867 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_2092 (Array Int Int)) (v_ArrVal_2090 (Array Int Int)) (|v_ULTIMATE.start_main_~p~0#1.base_294| Int) (v_ArrVal_2088 (Array Int Int)) (|v_ULTIMATE.start_main_~p~0#1.offset_291| Int)) (let ((.cse0 (store |c_#memory_int| |c_ULTIMATE.start_main_~p~0#1.base| v_ArrVal_2092))) (or (not (= (let ((.cse1 (+ |c_ULTIMATE.start_main_~a~0#1.offset| 4))) (select (select .cse0 (select (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~p~0#1.base| v_ArrVal_2088) |c_ULTIMATE.start_main_~a~0#1.base|) .cse1)) (select (select (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_main_~p~0#1.base| v_ArrVal_2090) |c_ULTIMATE.start_main_~a~0#1.base|) .cse1))) 1)) (not (= 2 (select (select .cse0 |v_ULTIMATE.start_main_~p~0#1.base_294|) |v_ULTIMATE.start_main_~p~0#1.offset_291|)))))) is different from false [2022-10-16 14:11:50,923 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_2084 Int) (v_ArrVal_2092 (Array Int Int)) (v_ArrVal_2090 (Array Int Int)) (|v_ULTIMATE.start_main_~p~0#1.base_294| Int) (v_ArrVal_2088 (Array Int Int)) (|v_ULTIMATE.start_main_~p~0#1.offset_291| Int)) (let ((.cse1 (+ |c_ULTIMATE.start_main_~p~0#1.offset| 4))) (let ((.cse0 (store (store |c_#memory_int| |c_ULTIMATE.start_main_~p~0#1.base| (store (select |c_#memory_int| |c_ULTIMATE.start_main_~p~0#1.base|) .cse1 v_ArrVal_2084)) |c_ULTIMATE.start_main_~t~0#1.base| v_ArrVal_2092))) (or (not (= (select (select .cse0 |v_ULTIMATE.start_main_~p~0#1.base_294|) |v_ULTIMATE.start_main_~p~0#1.offset_291|) 2)) (not (= (let ((.cse2 (+ |c_ULTIMATE.start_main_~a~0#1.offset| 4))) (select (select .cse0 (select (select (store (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~p~0#1.base| (store (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~p~0#1.base|) .cse1 |c_ULTIMATE.start_main_~t~0#1.base|)) |c_ULTIMATE.start_main_~t~0#1.base| v_ArrVal_2088) |c_ULTIMATE.start_main_~a~0#1.base|) .cse2)) (select (select (store (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_main_~p~0#1.base| (store (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_main_~p~0#1.base|) .cse1 |c_ULTIMATE.start_main_~t~0#1.offset|)) |c_ULTIMATE.start_main_~t~0#1.base| v_ArrVal_2090) |c_ULTIMATE.start_main_~a~0#1.base|) .cse2))) 1)))))) is different from false [2022-10-16 14:11:50,955 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-10-16 14:11:50,956 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 58 treesize of output 62 [2022-10-16 14:11:50,967 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-10-16 14:11:50,968 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 94 treesize of output 86 [2022-10-16 14:11:51,015 INFO L356 Elim1Store]: treesize reduction 4, result has 96.3 percent of original size [2022-10-16 14:11:51,016 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 163 treesize of output 217 [2022-10-16 14:11:51,027 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-10-16 14:11:51,028 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 174 treesize of output 167 [2022-10-16 14:11:51,044 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-10-16 14:11:51,044 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 105 treesize of output 109 [2022-10-16 14:11:51,213 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 4 [2022-10-16 14:11:51,218 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 4 [2022-10-16 14:11:51,223 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 22 [2022-10-16 14:11:51,556 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-10-16 14:11:51,556 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 26 [2022-10-16 14:11:51,564 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-10-16 14:11:51,564 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 70 treesize of output 69 [2022-10-16 14:11:51,570 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 46 [2022-10-16 14:11:51,579 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-10-16 14:11:51,580 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 33 [2022-10-16 14:11:51,714 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-10-16 14:11:51,715 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 34 treesize of output 35 [2022-10-16 14:11:51,718 INFO L173 IndexEqualityManager]: detected equality via solver [2022-10-16 14:11:51,724 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-10-16 14:11:51,725 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 47 treesize of output 46 [2022-10-16 14:11:51,733 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-10-16 14:11:51,733 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 41 treesize of output 33 [2022-10-16 14:11:51,799 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-10-16 14:11:51,799 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 29 treesize of output 30 [2022-10-16 14:11:51,802 INFO L173 IndexEqualityManager]: detected equality via solver [2022-10-16 14:11:51,809 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-10-16 14:11:51,809 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 36 treesize of output 35 [2022-10-16 14:11:51,816 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-10-16 14:11:51,816 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 22 treesize of output 22 [2022-10-16 14:11:52,391 INFO L134 CoverageAnalysis]: Checked inductivity of 410 backedges. 76 proven. 16 refuted. 0 times theorem prover too weak. 315 trivial. 3 not checked. [2022-10-16 14:11:52,391 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [32446027] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:11:52,392 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:11:52,392 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [42, 11, 15] total 65 [2022-10-16 14:11:52,392 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1508698856] [2022-10-16 14:11:52,392 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:11:52,393 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 65 states [2022-10-16 14:11:52,393 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:11:52,393 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 65 interpolants. [2022-10-16 14:11:52,394 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=454, Invalid=3457, Unknown=3, NotChecked=246, Total=4160 [2022-10-16 14:11:52,394 INFO L87 Difference]: Start difference. First operand 567 states and 627 transitions. Second operand has 65 states, 65 states have (on average 2.9076923076923076) internal successors, (189), 65 states have internal predecessors, (189), 0 states have call successors, (0), 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 14:11:56,522 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:11:56,523 INFO L93 Difference]: Finished difference Result 1156 states and 1265 transitions. [2022-10-16 14:11:56,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 87 states. [2022-10-16 14:11:56,523 INFO L78 Accepts]: Start accepts. Automaton has has 65 states, 65 states have (on average 2.9076923076923076) internal successors, (189), 65 states have internal predecessors, (189), 0 states have call successors, (0), 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 112 [2022-10-16 14:11:56,523 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:11:56,526 INFO L225 Difference]: With dead ends: 1156 [2022-10-16 14:11:56,526 INFO L226 Difference]: Without dead ends: 773 [2022-10-16 14:11:56,528 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 342 GetRequests, 207 SyntacticMatches, 0 SemanticMatches, 135 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 4389 ImplicationChecksByTransitivity, 5.4s TimeCoverageRelationStatistics Valid=3071, Invalid=15024, Unknown=3, NotChecked=534, Total=18632 [2022-10-16 14:11:56,528 INFO L413 NwaCegarLoop]: 33 mSDtfsCounter, 466 mSDsluCounter, 658 mSDsCounter, 0 mSdLazyCounter, 655 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 466 SdHoareTripleChecker+Valid, 691 SdHoareTripleChecker+Invalid, 1294 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 655 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 576 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-10-16 14:11:56,528 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [466 Valid, 691 Invalid, 1294 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 655 Invalid, 0 Unknown, 576 Unchecked, 0.5s Time] [2022-10-16 14:11:56,530 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 773 states. [2022-10-16 14:11:56,630 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 773 to 619. [2022-10-16 14:11:56,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 619 states, 616 states have (on average 1.1055194805194806) internal successors, (681), 618 states have internal predecessors, (681), 0 states have call successors, (0), 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 14:11:56,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 619 states to 619 states and 681 transitions. [2022-10-16 14:11:56,633 INFO L78 Accepts]: Start accepts. Automaton has 619 states and 681 transitions. Word has length 112 [2022-10-16 14:11:56,633 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:11:56,633 INFO L495 AbstractCegarLoop]: Abstraction has 619 states and 681 transitions. [2022-10-16 14:11:56,633 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 65 states, 65 states have (on average 2.9076923076923076) internal successors, (189), 65 states have internal predecessors, (189), 0 states have call successors, (0), 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 14:11:56,634 INFO L276 IsEmpty]: Start isEmpty. Operand 619 states and 681 transitions. [2022-10-16 14:11:56,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2022-10-16 14:11:56,636 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:11:56,636 INFO L195 NwaCegarLoop]: trace histogram [12, 11, 11, 11, 11, 10, 10, 10, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:11:56,668 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Forceful destruction successful, exit code 0 [2022-10-16 14:11:56,850 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40,33 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:11:56,851 INFO L420 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-16 14:11:56,851 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:11:56,851 INFO L85 PathProgramCache]: Analyzing trace with hash -383955571, now seen corresponding path program 7 times [2022-10-16 14:11:56,852 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:11:56,852 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [61841815] [2022-10-16 14:11:56,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:11:56,853 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:11:56,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:11:58,363 INFO L134 CoverageAnalysis]: Checked inductivity of 455 backedges. 0 proven. 442 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2022-10-16 14:11:58,364 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:11:58,364 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [61841815] [2022-10-16 14:11:58,364 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [61841815] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:11:58,364 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1367966105] [2022-10-16 14:11:58,364 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-10-16 14:11:58,364 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:11:58,365 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:11:58,365 INFO L229 MonitoredProcess]: Starting monitored process 34 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 14:11:58,366 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Waiting until timeout for monitored process [2022-10-16 14:11:58,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:11:58,569 INFO L263 TraceCheckSpWp]: Trace formula consists of 495 conjuncts, 45 conjunts are in the unsatisfiable core [2022-10-16 14:11:58,571 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:12:00,322 INFO L134 CoverageAnalysis]: Checked inductivity of 455 backedges. 0 proven. 442 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2022-10-16 14:12:00,322 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:12:02,574 INFO L134 CoverageAnalysis]: Checked inductivity of 455 backedges. 0 proven. 442 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2022-10-16 14:12:02,575 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1367966105] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:12:02,575 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:12:02,575 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [44, 44, 44] total 130 [2022-10-16 14:12:02,575 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1881307431] [2022-10-16 14:12:02,576 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:12:02,576 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 131 states [2022-10-16 14:12:02,576 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:12:02,577 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 131 interpolants. [2022-10-16 14:12:02,579 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3165, Invalid=13865, Unknown=0, NotChecked=0, Total=17030 [2022-10-16 14:12:02,579 INFO L87 Difference]: Start difference. First operand 619 states and 681 transitions. Second operand has 131 states, 130 states have (on average 2.2384615384615385) internal successors, (291), 131 states have internal predecessors, (291), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:12:05,722 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:12:05,722 INFO L93 Difference]: Finished difference Result 817 states and 900 transitions. [2022-10-16 14:12:05,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 109 states. [2022-10-16 14:12:05,723 INFO L78 Accepts]: Start accepts. Automaton has has 131 states, 130 states have (on average 2.2384615384615385) internal successors, (291), 131 states have internal predecessors, (291), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 116 [2022-10-16 14:12:05,723 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:12:05,727 INFO L225 Difference]: With dead ends: 817 [2022-10-16 14:12:05,727 INFO L226 Difference]: Without dead ends: 783 [2022-10-16 14:12:05,730 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 338 GetRequests, 145 SyntacticMatches, 0 SemanticMatches, 193 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12958 ImplicationChecksByTransitivity, 6.7s TimeCoverageRelationStatistics Valid=7454, Invalid=30376, Unknown=0, NotChecked=0, Total=37830 [2022-10-16 14:12:05,731 INFO L413 NwaCegarLoop]: 28 mSDtfsCounter, 969 mSDsluCounter, 556 mSDsCounter, 0 mSdLazyCounter, 558 mSolverCounterSat, 136 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 969 SdHoareTripleChecker+Valid, 584 SdHoareTripleChecker+Invalid, 694 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 136 IncrementalHoareTripleChecker+Valid, 558 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-10-16 14:12:05,731 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [969 Valid, 584 Invalid, 694 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [136 Valid, 558 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-10-16 14:12:05,732 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 783 states. [2022-10-16 14:12:05,822 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 783 to 608. [2022-10-16 14:12:05,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 608 states, 605 states have (on average 1.1090909090909091) internal successors, (671), 607 states have internal predecessors, (671), 0 states have call successors, (0), 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 14:12:05,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 608 states to 608 states and 671 transitions. [2022-10-16 14:12:05,826 INFO L78 Accepts]: Start accepts. Automaton has 608 states and 671 transitions. Word has length 116 [2022-10-16 14:12:05,826 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:12:05,826 INFO L495 AbstractCegarLoop]: Abstraction has 608 states and 671 transitions. [2022-10-16 14:12:05,826 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 131 states, 130 states have (on average 2.2384615384615385) internal successors, (291), 131 states have internal predecessors, (291), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:12:05,827 INFO L276 IsEmpty]: Start isEmpty. Operand 608 states and 671 transitions. [2022-10-16 14:12:05,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2022-10-16 14:12:05,829 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:12:05,829 INFO L195 NwaCegarLoop]: trace histogram [23, 23, 22, 22, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:12:05,864 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Ended with exit code 0 [2022-10-16 14:12:06,043 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 34 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable41 [2022-10-16 14:12:06,043 INFO L420 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-16 14:12:06,044 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:12:06,044 INFO L85 PathProgramCache]: Analyzing trace with hash -363794033, now seen corresponding path program 2 times [2022-10-16 14:12:06,045 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:12:06,045 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1833494468] [2022-10-16 14:12:06,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:12:06,045 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:12:06,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:12:07,463 INFO L134 CoverageAnalysis]: Checked inductivity of 1003 backedges. 0 proven. 990 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2022-10-16 14:12:07,463 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:12:07,464 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1833494468] [2022-10-16 14:12:07,464 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1833494468] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:12:07,464 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [487217591] [2022-10-16 14:12:07,464 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-16 14:12:07,464 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:12:07,465 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:12:07,466 INFO L229 MonitoredProcess]: Starting monitored process 35 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 14:12:07,467 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Waiting until timeout for monitored process [2022-10-16 14:12:07,670 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-10-16 14:12:07,670 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 14:12:07,672 INFO L263 TraceCheckSpWp]: Trace formula consists of 505 conjuncts, 47 conjunts are in the unsatisfiable core [2022-10-16 14:12:07,675 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:12:07,820 INFO L134 CoverageAnalysis]: Checked inductivity of 1003 backedges. 0 proven. 990 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2022-10-16 14:12:07,820 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:12:09,873 INFO L134 CoverageAnalysis]: Checked inductivity of 1003 backedges. 0 proven. 990 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2022-10-16 14:12:09,873 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [487217591] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:12:09,874 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:12:09,874 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [47, 47, 47] total 95 [2022-10-16 14:12:09,874 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1189377017] [2022-10-16 14:12:09,874 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:12:09,875 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 96 states [2022-10-16 14:12:09,875 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:12:09,876 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 96 interpolants. [2022-10-16 14:12:09,877 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2351, Invalid=6769, Unknown=0, NotChecked=0, Total=9120 [2022-10-16 14:12:09,878 INFO L87 Difference]: Start difference. First operand 608 states and 671 transitions. Second operand has 96 states, 95 states have (on average 2.1473684210526316) internal successors, (204), 96 states have internal predecessors, (204), 0 states have call successors, (0), 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 14:12:12,554 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:12:12,555 INFO L93 Difference]: Finished difference Result 5191 states and 5999 transitions. [2022-10-16 14:12:12,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 95 states. [2022-10-16 14:12:12,555 INFO L78 Accepts]: Start accepts. Automaton has has 96 states, 95 states have (on average 2.1473684210526316) internal successors, (204), 96 states have internal predecessors, (204), 0 states have call successors, (0), 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 116 [2022-10-16 14:12:12,556 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:12:12,576 INFO L225 Difference]: With dead ends: 5191 [2022-10-16 14:12:12,576 INFO L226 Difference]: Without dead ends: 5190 [2022-10-16 14:12:12,578 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 323 GetRequests, 183 SyntacticMatches, 0 SemanticMatches, 140 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4408 ImplicationChecksByTransitivity, 4.1s TimeCoverageRelationStatistics Valid=5642, Invalid=14380, Unknown=0, NotChecked=0, Total=20022 [2022-10-16 14:12:12,579 INFO L413 NwaCegarLoop]: 35 mSDtfsCounter, 2067 mSDsluCounter, 689 mSDsCounter, 0 mSdLazyCounter, 333 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2067 SdHoareTripleChecker+Valid, 724 SdHoareTripleChecker+Invalid, 372 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 333 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-16 14:12:12,579 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2067 Valid, 724 Invalid, 372 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 333 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-16 14:12:12,582 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5190 states. [2022-10-16 14:12:12,728 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5190 to 701. [2022-10-16 14:12:12,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 701 states, 698 states have (on average 1.1275071633237823) internal successors, (787), 700 states have internal predecessors, (787), 0 states have call successors, (0), 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 14:12:12,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 701 states to 701 states and 787 transitions. [2022-10-16 14:12:12,732 INFO L78 Accepts]: Start accepts. Automaton has 701 states and 787 transitions. Word has length 116 [2022-10-16 14:12:12,732 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:12:12,734 INFO L495 AbstractCegarLoop]: Abstraction has 701 states and 787 transitions. [2022-10-16 14:12:12,734 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 96 states, 95 states have (on average 2.1473684210526316) internal successors, (204), 96 states have internal predecessors, (204), 0 states have call successors, (0), 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 14:12:12,735 INFO L276 IsEmpty]: Start isEmpty. Operand 701 states and 787 transitions. [2022-10-16 14:12:12,737 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2022-10-16 14:12:12,737 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:12:12,737 INFO L195 NwaCegarLoop]: trace histogram [13, 12, 12, 12, 12, 11, 11, 11, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:12:12,772 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Forceful destruction successful, exit code 0 [2022-10-16 14:12:12,951 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42,35 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:12:12,952 INFO L420 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-16 14:12:12,952 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:12:12,953 INFO L85 PathProgramCache]: Analyzing trace with hash 816669119, now seen corresponding path program 8 times [2022-10-16 14:12:12,953 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:12:12,953 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1955550378] [2022-10-16 14:12:12,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:12:12,954 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:12:13,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:12:14,725 INFO L134 CoverageAnalysis]: Checked inductivity of 543 backedges. 0 proven. 530 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2022-10-16 14:12:14,725 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:12:14,725 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1955550378] [2022-10-16 14:12:14,725 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1955550378] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:12:14,725 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [670514969] [2022-10-16 14:12:14,726 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-16 14:12:14,726 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:12:14,726 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:12:14,727 INFO L229 MonitoredProcess]: Starting monitored process 36 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 14:12:14,731 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Waiting until timeout for monitored process [2022-10-16 14:12:14,941 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-10-16 14:12:14,941 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 14:12:14,944 INFO L263 TraceCheckSpWp]: Trace formula consists of 523 conjuncts, 49 conjunts are in the unsatisfiable core [2022-10-16 14:12:14,948 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:12:17,029 INFO L134 CoverageAnalysis]: Checked inductivity of 543 backedges. 0 proven. 530 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2022-10-16 14:12:17,029 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:12:19,671 INFO L134 CoverageAnalysis]: Checked inductivity of 543 backedges. 0 proven. 530 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2022-10-16 14:12:19,672 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [670514969] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:12:19,672 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:12:19,672 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [48, 48, 48] total 142 [2022-10-16 14:12:19,673 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [520501192] [2022-10-16 14:12:19,673 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:12:19,674 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 143 states [2022-10-16 14:12:19,674 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:12:19,675 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 143 interpolants. [2022-10-16 14:12:19,677 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3753, Invalid=16553, Unknown=0, NotChecked=0, Total=20306 [2022-10-16 14:12:19,677 INFO L87 Difference]: Start difference. First operand 701 states and 787 transitions. Second operand has 143 states, 142 states have (on average 2.2183098591549295) internal successors, (315), 143 states have internal predecessors, (315), 0 states have call successors, (0), 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 14:12:23,362 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:12:23,363 INFO L93 Difference]: Finished difference Result 954 states and 1062 transitions. [2022-10-16 14:12:23,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 119 states. [2022-10-16 14:12:23,363 INFO L78 Accepts]: Start accepts. Automaton has has 143 states, 142 states have (on average 2.2183098591549295) internal successors, (315), 143 states have internal predecessors, (315), 0 states have call successors, (0), 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 124 [2022-10-16 14:12:23,363 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:12:23,366 INFO L225 Difference]: With dead ends: 954 [2022-10-16 14:12:23,366 INFO L226 Difference]: Without dead ends: 917 [2022-10-16 14:12:23,369 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 364 GetRequests, 153 SyntacticMatches, 0 SemanticMatches, 211 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15573 ImplicationChecksByTransitivity, 8.0s TimeCoverageRelationStatistics Valid=8858, Invalid=36298, Unknown=0, NotChecked=0, Total=45156 [2022-10-16 14:12:23,370 INFO L413 NwaCegarLoop]: 28 mSDtfsCounter, 783 mSDsluCounter, 500 mSDsCounter, 0 mSdLazyCounter, 550 mSolverCounterSat, 90 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 783 SdHoareTripleChecker+Valid, 528 SdHoareTripleChecker+Invalid, 640 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 90 IncrementalHoareTripleChecker+Valid, 550 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-10-16 14:12:23,370 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [783 Valid, 528 Invalid, 640 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [90 Valid, 550 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-10-16 14:12:23,371 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 917 states. [2022-10-16 14:12:23,472 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 917 to 623. [2022-10-16 14:12:23,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 623 states, 620 states have (on average 1.1435483870967742) internal successors, (709), 622 states have internal predecessors, (709), 0 states have call successors, (0), 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 14:12:23,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 623 states to 623 states and 709 transitions. [2022-10-16 14:12:23,475 INFO L78 Accepts]: Start accepts. Automaton has 623 states and 709 transitions. Word has length 124 [2022-10-16 14:12:23,475 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:12:23,475 INFO L495 AbstractCegarLoop]: Abstraction has 623 states and 709 transitions. [2022-10-16 14:12:23,476 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 143 states, 142 states have (on average 2.2183098591549295) internal successors, (315), 143 states have internal predecessors, (315), 0 states have call successors, (0), 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 14:12:23,476 INFO L276 IsEmpty]: Start isEmpty. Operand 623 states and 709 transitions. [2022-10-16 14:12:23,478 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2022-10-16 14:12:23,478 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:12:23,478 INFO L195 NwaCegarLoop]: trace histogram [25, 25, 24, 24, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:12:23,518 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Forceful destruction successful, exit code 0 [2022-10-16 14:12:23,691 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 36 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable43 [2022-10-16 14:12:23,691 INFO L420 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-16 14:12:23,692 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:12:23,692 INFO L85 PathProgramCache]: Analyzing trace with hash -572024658, now seen corresponding path program 5 times [2022-10-16 14:12:23,693 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:12:23,693 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1730592377] [2022-10-16 14:12:23,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:12:23,693 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:12:23,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:12:25,326 INFO L134 CoverageAnalysis]: Checked inductivity of 1189 backedges. 0 proven. 1176 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2022-10-16 14:12:25,327 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:12:25,327 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1730592377] [2022-10-16 14:12:25,327 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1730592377] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:12:25,327 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [132253538] [2022-10-16 14:12:25,328 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-10-16 14:12:25,328 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:12:25,328 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:12:25,329 INFO L229 MonitoredProcess]: Starting monitored process 37 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 14:12:25,330 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (37)] Waiting until timeout for monitored process [2022-10-16 14:12:25,583 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 25 check-sat command(s) [2022-10-16 14:12:25,583 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 14:12:25,586 INFO L263 TraceCheckSpWp]: Trace formula consists of 536 conjuncts, 51 conjunts are in the unsatisfiable core [2022-10-16 14:12:25,588 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:12:25,753 INFO L134 CoverageAnalysis]: Checked inductivity of 1189 backedges. 0 proven. 1176 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2022-10-16 14:12:25,754 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:12:28,177 INFO L134 CoverageAnalysis]: Checked inductivity of 1189 backedges. 0 proven. 1176 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2022-10-16 14:12:28,177 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [132253538] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:12:28,177 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:12:28,178 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [51, 51, 51] total 103 [2022-10-16 14:12:28,178 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1407342930] [2022-10-16 14:12:28,178 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:12:28,179 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 104 states [2022-10-16 14:12:28,179 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:12:28,180 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 104 interpolants. [2022-10-16 14:12:28,181 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2755, Invalid=7957, Unknown=0, NotChecked=0, Total=10712 [2022-10-16 14:12:28,181 INFO L87 Difference]: Start difference. First operand 623 states and 709 transitions. Second operand has 104 states, 103 states have (on average 2.1941747572815533) internal successors, (226), 104 states have internal predecessors, (226), 0 states have call successors, (0), 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 14:12:30,502 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:12:30,502 INFO L93 Difference]: Finished difference Result 1031 states and 1145 transitions. [2022-10-16 14:12:30,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 103 states. [2022-10-16 14:12:30,503 INFO L78 Accepts]: Start accepts. Automaton has has 104 states, 103 states have (on average 2.1941747572815533) internal successors, (226), 104 states have internal predecessors, (226), 0 states have call successors, (0), 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 14:12:30,503 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:12:30,507 INFO L225 Difference]: With dead ends: 1031 [2022-10-16 14:12:30,507 INFO L226 Difference]: Without dead ends: 1030 [2022-10-16 14:12:30,509 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 351 GetRequests, 199 SyntacticMatches, 0 SemanticMatches, 152 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5192 ImplicationChecksByTransitivity, 4.8s TimeCoverageRelationStatistics Valid=6632, Invalid=16930, Unknown=0, NotChecked=0, Total=23562 [2022-10-16 14:12:30,509 INFO L413 NwaCegarLoop]: 40 mSDtfsCounter, 893 mSDsluCounter, 354 mSDsCounter, 0 mSdLazyCounter, 352 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 893 SdHoareTripleChecker+Valid, 394 SdHoareTripleChecker+Invalid, 386 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 352 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-16 14:12:30,510 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [893 Valid, 394 Invalid, 386 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 352 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-16 14:12:30,511 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1030 states. [2022-10-16 14:12:30,697 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1030 to 831. [2022-10-16 14:12:30,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 831 states, 828 states have (on average 1.1388888888888888) internal successors, (943), 830 states have internal predecessors, (943), 0 states have call successors, (0), 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 14:12:30,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 831 states to 831 states and 943 transitions. [2022-10-16 14:12:30,699 INFO L78 Accepts]: Start accepts. Automaton has 831 states and 943 transitions. Word has length 126 [2022-10-16 14:12:30,699 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:12:30,700 INFO L495 AbstractCegarLoop]: Abstraction has 831 states and 943 transitions. [2022-10-16 14:12:30,700 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 104 states, 103 states have (on average 2.1941747572815533) internal successors, (226), 104 states have internal predecessors, (226), 0 states have call successors, (0), 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 14:12:30,700 INFO L276 IsEmpty]: Start isEmpty. Operand 831 states and 943 transitions. [2022-10-16 14:12:30,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2022-10-16 14:12:30,701 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:12:30,702 INFO L195 NwaCegarLoop]: trace histogram [24, 23, 23, 23, 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, 1, 1, 1, 1, 1] [2022-10-16 14:12:30,736 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (37)] Forceful destruction successful, exit code 0 [2022-10-16 14:12:30,916 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44,37 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:12:30,917 INFO L420 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-16 14:12:30,917 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:12:30,918 INFO L85 PathProgramCache]: Analyzing trace with hash 155170510, now seen corresponding path program 4 times [2022-10-16 14:12:30,918 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:12:30,918 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [902621616] [2022-10-16 14:12:30,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:12:30,919 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:12:30,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:12:32,665 INFO L134 CoverageAnalysis]: Checked inductivity of 1066 backedges. 0 proven. 1060 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-10-16 14:12:32,666 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:12:32,666 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [902621616] [2022-10-16 14:12:32,666 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [902621616] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:12:32,666 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1071677432] [2022-10-16 14:12:32,667 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-10-16 14:12:32,667 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:12:32,667 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:12:32,668 INFO L229 MonitoredProcess]: Starting monitored process 38 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 14:12:32,669 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (38)] Waiting until timeout for monitored process [2022-10-16 14:12:32,900 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-10-16 14:12:32,900 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 14:12:32,903 INFO L263 TraceCheckSpWp]: Trace formula consists of 537 conjuncts, 51 conjunts are in the unsatisfiable core [2022-10-16 14:12:32,907 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:12:34,636 INFO L134 CoverageAnalysis]: Checked inductivity of 1066 backedges. 0 proven. 1060 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-10-16 14:12:34,636 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:12:37,290 INFO L134 CoverageAnalysis]: Checked inductivity of 1066 backedges. 0 proven. 1060 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-10-16 14:12:37,290 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1071677432] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:12:37,291 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:12:37,291 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [50, 50, 50] total 148 [2022-10-16 14:12:37,291 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1144911897] [2022-10-16 14:12:37,291 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:12:37,292 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 149 states [2022-10-16 14:12:37,292 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:12:37,293 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 149 interpolants. [2022-10-16 14:12:37,295 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=4934, Invalid=17118, Unknown=0, NotChecked=0, Total=22052 [2022-10-16 14:12:37,295 INFO L87 Difference]: Start difference. First operand 831 states and 943 transitions. Second operand has 149 states, 148 states have (on average 2.2432432432432434) internal successors, (332), 149 states have internal predecessors, (332), 0 states have call successors, (0), 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 14:12:39,760 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:12:39,760 INFO L93 Difference]: Finished difference Result 1188 states and 1324 transitions. [2022-10-16 14:12:39,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 101 states. [2022-10-16 14:12:39,761 INFO L78 Accepts]: Start accepts. Automaton has has 149 states, 148 states have (on average 2.2432432432432434) internal successors, (332), 149 states have internal predecessors, (332), 0 states have call successors, (0), 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 128 [2022-10-16 14:12:39,761 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:12:39,764 INFO L225 Difference]: With dead ends: 1188 [2022-10-16 14:12:39,764 INFO L226 Difference]: Without dead ends: 1115 [2022-10-16 14:12:39,767 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 354 GetRequests, 157 SyntacticMatches, 0 SemanticMatches, 197 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15854 ImplicationChecksByTransitivity, 6.5s TimeCoverageRelationStatistics Valid=9338, Invalid=30064, Unknown=0, NotChecked=0, Total=39402 [2022-10-16 14:12:39,767 INFO L413 NwaCegarLoop]: 28 mSDtfsCounter, 520 mSDsluCounter, 567 mSDsCounter, 0 mSdLazyCounter, 559 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 520 SdHoareTripleChecker+Valid, 595 SdHoareTripleChecker+Invalid, 591 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 559 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-10-16 14:12:39,767 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [520 Valid, 595 Invalid, 591 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 559 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-10-16 14:12:39,768 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1115 states. [2022-10-16 14:12:40,048 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1115 to 1111. [2022-10-16 14:12:40,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1111 states, 1108 states have (on average 1.1037906137184115) internal successors, (1223), 1110 states have internal predecessors, (1223), 0 states have call successors, (0), 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 14:12:40,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1111 states to 1111 states and 1223 transitions. [2022-10-16 14:12:40,052 INFO L78 Accepts]: Start accepts. Automaton has 1111 states and 1223 transitions. Word has length 128 [2022-10-16 14:12:40,053 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:12:40,053 INFO L495 AbstractCegarLoop]: Abstraction has 1111 states and 1223 transitions. [2022-10-16 14:12:40,054 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 149 states, 148 states have (on average 2.2432432432432434) internal successors, (332), 149 states have internal predecessors, (332), 0 states have call successors, (0), 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 14:12:40,054 INFO L276 IsEmpty]: Start isEmpty. Operand 1111 states and 1223 transitions. [2022-10-16 14:12:40,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2022-10-16 14:12:40,056 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:12:40,056 INFO L195 NwaCegarLoop]: trace histogram [14, 13, 13, 13, 13, 12, 12, 12, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:12:40,090 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (38)] Forceful destruction successful, exit code 0 [2022-10-16 14:12:40,269 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 38 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable45 [2022-10-16 14:12:40,270 INFO L420 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-16 14:12:40,270 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:12:40,270 INFO L85 PathProgramCache]: Analyzing trace with hash -1182465039, now seen corresponding path program 9 times [2022-10-16 14:12:40,271 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:12:40,271 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [82072039] [2022-10-16 14:12:40,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:12:40,272 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:12:40,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:12:42,077 INFO L134 CoverageAnalysis]: Checked inductivity of 639 backedges. 0 proven. 626 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2022-10-16 14:12:42,078 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:12:42,078 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [82072039] [2022-10-16 14:12:42,078 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [82072039] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:12:42,078 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [769545797] [2022-10-16 14:12:42,078 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-10-16 14:12:42,078 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:12:42,079 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:12:42,079 INFO L229 MonitoredProcess]: Starting monitored process 39 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 14:12:42,080 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (39)] Waiting until timeout for monitored process [2022-10-16 14:12:42,638 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2022-10-16 14:12:42,639 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 14:12:42,643 INFO L263 TraceCheckSpWp]: Trace formula consists of 481 conjuncts, 68 conjunts are in the unsatisfiable core [2022-10-16 14:12:42,649 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:12:42,658 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-10-16 14:12:42,751 INFO L356 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-10-16 14:12:42,751 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2022-10-16 14:12:42,823 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-10-16 14:12:42,832 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-10-16 14:12:42,961 INFO L356 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-10-16 14:12:42,962 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 37 treesize of output 35 [2022-10-16 14:12:42,976 INFO L356 Elim1Store]: treesize reduction 8, result has 65.2 percent of original size [2022-10-16 14:12:42,977 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 22 treesize of output 24 [2022-10-16 14:12:42,986 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 14:12:42,987 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 25 [2022-10-16 14:12:43,092 INFO L356 Elim1Store]: treesize reduction 39, result has 18.8 percent of original size [2022-10-16 14:12:43,093 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 125 treesize of output 85 [2022-10-16 14:12:43,099 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 133 treesize of output 99 [2022-10-16 14:12:43,303 INFO L356 Elim1Store]: treesize reduction 36, result has 23.4 percent of original size [2022-10-16 14:12:43,304 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 146 treesize of output 107 [2022-10-16 14:12:43,315 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 14:12:43,316 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 56 treesize of output 57 [2022-10-16 14:12:43,320 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 66 treesize of output 63 [2022-10-16 14:12:43,613 INFO L173 IndexEqualityManager]: detected equality via solver [2022-10-16 14:12:43,619 INFO L356 Elim1Store]: treesize reduction 31, result has 8.8 percent of original size [2022-10-16 14:12:43,619 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 127 treesize of output 55 [2022-10-16 14:12:43,628 INFO L356 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size [2022-10-16 14:12:43,629 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 43 treesize of output 25 [2022-10-16 14:12:43,678 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-10-16 14:12:43,719 INFO L134 CoverageAnalysis]: Checked inductivity of 639 backedges. 110 proven. 21 refuted. 0 times theorem prover too weak. 508 trivial. 0 not checked. [2022-10-16 14:12:43,719 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:12:43,932 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 904 treesize of output 788 [2022-10-16 14:12:43,997 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse1 (+ |c_ULTIMATE.start_main_~p~0#1.offset| 4)) (.cse3 (+ |c_ULTIMATE.start_main_~a~0#1.offset| 4))) (and (forall ((v_ArrVal_2603 (Array Int Int)) (v_ArrVal_2598 (Array Int Int))) (let ((.cse0 (let ((.cse2 (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_main_~p~0#1.base| v_ArrVal_2598))) (select (select .cse2 (select (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~p~0#1.base| v_ArrVal_2603) |c_ULTIMATE.start_main_~a~0#1.base|) .cse3)) (+ (select (select .cse2 |c_ULTIMATE.start_main_~a~0#1.base|) .cse3) 4))))) (or (= .cse0 .cse1) (= .cse0 |c_ULTIMATE.start_main_~p~0#1.offset|)))) (forall ((v_ArrVal_2603 (Array Int Int)) (v_ArrVal_2598 (Array Int Int))) (= (select (let ((.cse4 (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~p~0#1.base| v_ArrVal_2603))) (select .cse4 (select (select .cse4 |c_ULTIMATE.start_main_~a~0#1.base|) .cse3))) (+ (select (select (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_main_~p~0#1.base| v_ArrVal_2598) |c_ULTIMATE.start_main_~a~0#1.base|) .cse3) 4)) |c_ULTIMATE.start_main_~p~0#1.base|)) (forall ((v_ArrVal_2603 (Array Int Int)) (v_ArrVal_2598 (Array Int Int))) (let ((.cse5 (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_main_~p~0#1.base| v_ArrVal_2598)) (.cse8 (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~p~0#1.base| v_ArrVal_2603))) (let ((.cse6 (select (select .cse8 |c_ULTIMATE.start_main_~a~0#1.base|) .cse3)) (.cse7 (+ (select (select .cse5 |c_ULTIMATE.start_main_~a~0#1.base|) .cse3) 4))) (or (not (= (select (select .cse5 .cse6) .cse7) .cse1)) (not (= (select (select .cse8 .cse6) .cse7) |c_ULTIMATE.start_main_~p~0#1.base|)))))) (forall ((v_ArrVal_2603 (Array Int Int)) (v_ArrVal_2598 (Array Int Int))) (let ((.cse12 (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_main_~p~0#1.base| v_ArrVal_2598)) (.cse9 (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~p~0#1.base| v_ArrVal_2603))) (let ((.cse10 (select (select .cse9 |c_ULTIMATE.start_main_~a~0#1.base|) .cse3)) (.cse11 (+ (select (select .cse12 |c_ULTIMATE.start_main_~a~0#1.base|) .cse3) 4))) (or (= (select (select .cse9 .cse10) .cse11) |c_ULTIMATE.start_main_~p~0#1.base|) (= (select (select .cse12 .cse10) .cse11) |c_ULTIMATE.start_main_~p~0#1.offset|))))))) is different from false [2022-10-16 14:12:44,252 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse15 (+ |c_ULTIMATE.start_main_~p~0#1.offset| 4))) (let ((.cse5 (+ |c_ULTIMATE.start_main_~t~0#1.offset| 4)) (.cse1 (+ |c_ULTIMATE.start_main_~a~0#1.offset| 4)) (.cse2 (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~p~0#1.base| (store (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~p~0#1.base|) .cse15 |c_ULTIMATE.start_main_~t~0#1.base|))) (.cse3 (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_main_~p~0#1.base| (store (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_main_~p~0#1.base|) .cse15 |c_ULTIMATE.start_main_~t~0#1.offset|)))) (and (forall ((v_ArrVal_2603 (Array Int Int)) (v_ArrVal_2598 (Array Int Int))) (= (select (let ((.cse0 (store .cse2 |c_ULTIMATE.start_main_~t~0#1.base| v_ArrVal_2603))) (select .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~a~0#1.base|) .cse1))) (+ (select (select (store .cse3 |c_ULTIMATE.start_main_~t~0#1.base| v_ArrVal_2598) |c_ULTIMATE.start_main_~a~0#1.base|) .cse1) 4)) |c_ULTIMATE.start_main_~t~0#1.base|)) (forall ((v_ArrVal_2603 (Array Int Int)) (v_ArrVal_2598 (Array Int Int))) (let ((.cse4 (let ((.cse6 (store .cse3 |c_ULTIMATE.start_main_~t~0#1.base| v_ArrVal_2598))) (select (select .cse6 (select (select (store .cse2 |c_ULTIMATE.start_main_~t~0#1.base| v_ArrVal_2603) |c_ULTIMATE.start_main_~a~0#1.base|) .cse1)) (+ (select (select .cse6 |c_ULTIMATE.start_main_~a~0#1.base|) .cse1) 4))))) (or (= .cse4 .cse5) (= |c_ULTIMATE.start_main_~t~0#1.offset| .cse4)))) (forall ((v_ArrVal_2603 (Array Int Int)) (v_ArrVal_2598 (Array Int Int))) (let ((.cse10 (store .cse3 |c_ULTIMATE.start_main_~t~0#1.base| v_ArrVal_2598)) (.cse7 (store .cse2 |c_ULTIMATE.start_main_~t~0#1.base| v_ArrVal_2603))) (let ((.cse8 (select (select .cse7 |c_ULTIMATE.start_main_~a~0#1.base|) .cse1)) (.cse9 (+ (select (select .cse10 |c_ULTIMATE.start_main_~a~0#1.base|) .cse1) 4))) (or (not (= (select (select .cse7 .cse8) .cse9) |c_ULTIMATE.start_main_~t~0#1.base|)) (not (= (select (select .cse10 .cse8) .cse9) .cse5)))))) (forall ((v_ArrVal_2603 (Array Int Int)) (v_ArrVal_2598 (Array Int Int))) (let ((.cse14 (store .cse3 |c_ULTIMATE.start_main_~t~0#1.base| v_ArrVal_2598)) (.cse11 (store .cse2 |c_ULTIMATE.start_main_~t~0#1.base| v_ArrVal_2603))) (let ((.cse12 (select (select .cse11 |c_ULTIMATE.start_main_~a~0#1.base|) .cse1)) (.cse13 (+ (select (select .cse14 |c_ULTIMATE.start_main_~a~0#1.base|) .cse1) 4))) (or (= (select (select .cse11 .cse12) .cse13) |c_ULTIMATE.start_main_~t~0#1.base|) (= |c_ULTIMATE.start_main_~t~0#1.offset| (select (select .cse14 .cse12) .cse13))))))))) is different from false [2022-10-16 14:12:44,319 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-10-16 14:12:44,320 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 384 treesize of output 343 [2022-10-16 14:12:44,331 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-10-16 14:12:44,331 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 430 treesize of output 384 [2022-10-16 14:12:45,105 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-10-16 14:12:45,106 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 163 treesize of output 153 [2022-10-16 14:12:45,113 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-10-16 14:12:45,113 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 143 treesize of output 113 [2022-10-16 14:12:45,126 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-10-16 14:12:45,126 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 829 treesize of output 810 [2022-10-16 14:12:46,090 INFO L356 Elim1Store]: treesize reduction 414, result has 57.9 percent of original size [2022-10-16 14:12:46,091 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 11 select indices, 11 select index equivalence classes, 0 disjoint index pairs (out of 55 index pairs), introduced 12 new quantified variables, introduced 55 case distinctions, treesize of input 12517 treesize of output 11326 [2022-10-16 14:12:46,554 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10803 treesize of output 8963 [2022-10-16 14:12:46,838 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-10-16 14:12:46,839 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 9005 treesize of output 7591 [2022-10-16 14:12:47,276 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-10-16 14:12:47,278 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 7469 treesize of output 5457 [2022-10-16 14:12:47,594 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-10-16 14:12:47,595 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 6 new quantified variables, introduced 10 case distinctions, treesize of input 5537 treesize of output 5235