/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml --cacsl2boogietranslator.check.unreachability.of.error.function.in.sv-comp.mode false --cacsl2boogietranslator.check.absence.of.signed.integer.overflows true -i ../../../trunk/examples/svcomp/pthread/fib_safe-7.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-53ca081-m [2022-09-16 10:13:31,137 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-09-16 10:13:31,139 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-09-16 10:13:31,165 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-09-16 10:13:31,165 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-09-16 10:13:31,166 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-09-16 10:13:31,169 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-09-16 10:13:31,178 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-09-16 10:13:31,180 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-09-16 10:13:31,184 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-09-16 10:13:31,184 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-09-16 10:13:31,185 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-09-16 10:13:31,185 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-09-16 10:13:31,186 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-09-16 10:13:31,187 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-09-16 10:13:31,187 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-09-16 10:13:31,188 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-09-16 10:13:31,188 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-09-16 10:13:31,190 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-09-16 10:13:31,191 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-09-16 10:13:31,194 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-09-16 10:13:31,196 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-09-16 10:13:31,199 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-09-16 10:13:31,201 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-09-16 10:13:31,207 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-09-16 10:13:31,207 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-09-16 10:13:31,208 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-09-16 10:13:31,209 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-09-16 10:13:31,209 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-09-16 10:13:31,210 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-09-16 10:13:31,210 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-09-16 10:13:31,211 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-09-16 10:13:31,212 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-09-16 10:13:31,213 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-09-16 10:13:31,214 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-09-16 10:13:31,214 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-09-16 10:13:31,214 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-09-16 10:13:31,214 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-09-16 10:13:31,215 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-09-16 10:13:31,216 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-09-16 10:13:31,216 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-09-16 10:13:31,217 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf [2022-09-16 10:13:31,251 INFO L113 SettingsManager]: Loading preferences was successful [2022-09-16 10:13:31,252 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-09-16 10:13:31,252 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-09-16 10:13:31,252 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-09-16 10:13:31,253 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-09-16 10:13:31,253 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-09-16 10:13:31,254 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-09-16 10:13:31,254 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-09-16 10:13:31,254 INFO L138 SettingsManager]: * Use SBE=true [2022-09-16 10:13:31,254 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-09-16 10:13:31,255 INFO L138 SettingsManager]: * sizeof long=4 [2022-09-16 10:13:31,255 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-09-16 10:13:31,255 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-09-16 10:13:31,255 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-09-16 10:13:31,255 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-09-16 10:13:31,255 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-09-16 10:13:31,255 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-09-16 10:13:31,255 INFO L138 SettingsManager]: * sizeof long double=12 [2022-09-16 10:13:31,256 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-09-16 10:13:31,256 INFO L138 SettingsManager]: * Use constant arrays=true [2022-09-16 10:13:31,256 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-09-16 10:13:31,256 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-09-16 10:13:31,256 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-09-16 10:13:31,257 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-09-16 10:13:31,257 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-09-16 10:13:31,257 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-09-16 10:13:31,257 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-09-16 10:13:31,258 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-09-16 10:13:31,258 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-09-16 10:13:31,258 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-09-16 10:13:31,258 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-09-16 10:13:31,258 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-09-16 10:13:31,258 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-09-16 10:13:31,258 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of error function in SV-COMP mode -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of signed integer overflows -> true [2022-09-16 10:13:31,503 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-09-16 10:13:31,527 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-09-16 10:13:31,529 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-09-16 10:13:31,530 INFO L271 PluginConnector]: Initializing CDTParser... [2022-09-16 10:13:31,531 INFO L275 PluginConnector]: CDTParser initialized [2022-09-16 10:13:31,532 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread/fib_safe-7.i [2022-09-16 10:13:31,587 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/698ce3496/3cccfacc95ce44da9933d65d67d1be70/FLAGd9b94cc22 [2022-09-16 10:13:32,032 INFO L306 CDTParser]: Found 1 translation units. [2022-09-16 10:13:32,033 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread/fib_safe-7.i [2022-09-16 10:13:32,043 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/698ce3496/3cccfacc95ce44da9933d65d67d1be70/FLAGd9b94cc22 [2022-09-16 10:13:32,056 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/698ce3496/3cccfacc95ce44da9933d65d67d1be70 [2022-09-16 10:13:32,058 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-09-16 10:13:32,059 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-09-16 10:13:32,063 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-09-16 10:13:32,063 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-09-16 10:13:32,065 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-09-16 10:13:32,066 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.09 10:13:32" (1/1) ... [2022-09-16 10:13:32,067 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4c92468b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:13:32, skipping insertion in model container [2022-09-16 10:13:32,067 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.09 10:13:32" (1/1) ... [2022-09-16 10:13:32,072 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-09-16 10:13:32,103 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-09-16 10:13:32,370 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread/fib_safe-7.i[30813,30826] [2022-09-16 10:13:32,371 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-09-16 10:13:32,378 INFO L203 MainTranslator]: Completed pre-run [2022-09-16 10:13:32,427 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread/fib_safe-7.i[30813,30826] [2022-09-16 10:13:32,429 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-09-16 10:13:32,463 INFO L208 MainTranslator]: Completed translation [2022-09-16 10:13:32,463 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:13:32 WrapperNode [2022-09-16 10:13:32,463 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-09-16 10:13:32,464 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-09-16 10:13:32,464 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-09-16 10:13:32,464 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-09-16 10:13:32,470 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:13:32" (1/1) ... [2022-09-16 10:13:32,501 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:13:32" (1/1) ... [2022-09-16 10:13:32,523 INFO L138 Inliner]: procedures = 164, calls = 26, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 75 [2022-09-16 10:13:32,523 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-09-16 10:13:32,524 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-09-16 10:13:32,524 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-09-16 10:13:32,524 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-09-16 10:13:32,532 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:13:32" (1/1) ... [2022-09-16 10:13:32,532 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:13:32" (1/1) ... [2022-09-16 10:13:32,542 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:13:32" (1/1) ... [2022-09-16 10:13:32,543 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:13:32" (1/1) ... [2022-09-16 10:13:32,556 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:13:32" (1/1) ... [2022-09-16 10:13:32,559 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:13:32" (1/1) ... [2022-09-16 10:13:32,560 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:13:32" (1/1) ... [2022-09-16 10:13:32,562 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-09-16 10:13:32,562 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-09-16 10:13:32,562 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-09-16 10:13:32,562 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-09-16 10:13:32,565 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:13:32" (1/1) ... [2022-09-16 10:13:32,570 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-09-16 10:13:32,578 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-16 10:13:32,592 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) [2022-09-16 10:13:32,599 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 [2022-09-16 10:13:32,625 INFO L130 BoogieDeclarations]: Found specification of procedure t1 [2022-09-16 10:13:32,625 INFO L138 BoogieDeclarations]: Found implementation of procedure t1 [2022-09-16 10:13:32,625 INFO L130 BoogieDeclarations]: Found specification of procedure t2 [2022-09-16 10:13:32,625 INFO L138 BoogieDeclarations]: Found implementation of procedure t2 [2022-09-16 10:13:32,625 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-09-16 10:13:32,625 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-09-16 10:13:32,626 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-09-16 10:13:32,626 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-09-16 10:13:32,626 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-09-16 10:13:32,626 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-09-16 10:13:32,626 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-09-16 10:13:32,626 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-09-16 10:13:32,626 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-09-16 10:13:32,627 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-09-16 10:13:32,747 INFO L234 CfgBuilder]: Building ICFG [2022-09-16 10:13:32,748 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-09-16 10:13:32,987 INFO L275 CfgBuilder]: Performing block encoding [2022-09-16 10:13:33,022 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-09-16 10:13:33,022 INFO L299 CfgBuilder]: Removed 3 assume(true) statements. [2022-09-16 10:13:33,024 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.09 10:13:33 BoogieIcfgContainer [2022-09-16 10:13:33,025 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-09-16 10:13:33,026 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-09-16 10:13:33,026 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-09-16 10:13:33,031 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-09-16 10:13:33,032 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.09 10:13:32" (1/3) ... [2022-09-16 10:13:33,032 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@17953d8d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.09 10:13:33, skipping insertion in model container [2022-09-16 10:13:33,032 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:13:32" (2/3) ... [2022-09-16 10:13:33,033 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@17953d8d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.09 10:13:33, skipping insertion in model container [2022-09-16 10:13:33,033 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.09 10:13:33" (3/3) ... [2022-09-16 10:13:33,034 INFO L112 eAbstractionObserver]: Analyzing ICFG fib_safe-7.i [2022-09-16 10:13:33,040 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-09-16 10:13:33,047 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-09-16 10:13:33,048 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 12 error locations. [2022-09-16 10:13:33,048 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-09-16 10:13:33,139 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-09-16 10:13:33,170 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 115 places, 115 transitions, 240 flow [2022-09-16 10:13:33,489 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 9950 states, 9826 states have (on average 3.1884795440667615) internal successors, (31330), 9949 states have internal predecessors, (31330), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:13:33,509 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-09-16 10:13:33,516 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;@7759f390, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-09-16 10:13:33,516 INFO L358 AbstractCegarLoop]: Starting to check reachability of 22 error locations. [2022-09-16 10:13:33,560 INFO L276 IsEmpty]: Start isEmpty. Operand has 9950 states, 9826 states have (on average 3.1884795440667615) internal successors, (31330), 9949 states have internal predecessors, (31330), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:13:33,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2022-09-16 10:13:33,568 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:13:33,569 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:13:33,570 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting t1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2022-09-16 10:13:33,574 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:13:33,574 INFO L85 PathProgramCache]: Analyzing trace with hash -2090278822, now seen corresponding path program 1 times [2022-09-16 10:13:33,581 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:13:33,582 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [661464837] [2022-09-16 10:13:33,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:13:33,582 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:13:33,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:13:33,877 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:13:33,878 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:13:33,878 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [661464837] [2022-09-16 10:13:33,879 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [661464837] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:13:33,879 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:13:33,879 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-09-16 10:13:33,880 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [756096739] [2022-09-16 10:13:33,881 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:13:33,885 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-09-16 10:13:33,885 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:13:33,915 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-09-16 10:13:33,916 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-09-16 10:13:33,944 INFO L87 Difference]: Start difference. First operand has 9950 states, 9826 states have (on average 3.1884795440667615) internal successors, (31330), 9949 states have internal predecessors, (31330), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 3 states have (on average 12.0) internal successors, (36), 4 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) [2022-09-16 10:13:34,254 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:13:34,255 INFO L93 Difference]: Finished difference Result 14861 states and 44393 transitions. [2022-09-16 10:13:34,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-09-16 10:13:34,257 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 12.0) internal successors, (36), 4 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 36 [2022-09-16 10:13:34,258 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:13:34,389 INFO L225 Difference]: With dead ends: 14861 [2022-09-16 10:13:34,389 INFO L226 Difference]: Without dead ends: 14861 [2022-09-16 10:13:34,390 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-09-16 10:13:34,394 INFO L413 NwaCegarLoop]: 100 mSDtfsCounter, 174 mSDsluCounter, 144 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 174 SdHoareTripleChecker+Valid, 243 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-09-16 10:13:34,395 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [174 Valid, 243 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-09-16 10:13:34,445 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14861 states. [2022-09-16 10:13:34,876 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14861 to 11101. [2022-09-16 10:13:34,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11101 states, 10953 states have (on average 3.034693691226148) internal successors, (33239), 11100 states have internal predecessors, (33239), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:13:34,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11101 states to 11101 states and 33239 transitions. [2022-09-16 10:13:34,958 INFO L78 Accepts]: Start accepts. Automaton has 11101 states and 33239 transitions. Word has length 36 [2022-09-16 10:13:34,959 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:13:34,959 INFO L495 AbstractCegarLoop]: Abstraction has 11101 states and 33239 transitions. [2022-09-16 10:13:34,960 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 12.0) internal successors, (36), 4 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) [2022-09-16 10:13:34,960 INFO L276 IsEmpty]: Start isEmpty. Operand 11101 states and 33239 transitions. [2022-09-16 10:13:34,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2022-09-16 10:13:34,963 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:13:34,963 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:13:34,963 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-09-16 10:13:34,963 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2022-09-16 10:13:34,964 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:13:34,964 INFO L85 PathProgramCache]: Analyzing trace with hash 1286757501, now seen corresponding path program 1 times [2022-09-16 10:13:34,964 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:13:34,964 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1084346714] [2022-09-16 10:13:34,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:13:34,965 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:13:35,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:13:35,045 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:13:35,046 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:13:35,046 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1084346714] [2022-09-16 10:13:35,046 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1084346714] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:13:35,046 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:13:35,046 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-09-16 10:13:35,047 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1353089253] [2022-09-16 10:13:35,047 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:13:35,048 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-09-16 10:13:35,048 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:13:35,049 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-09-16 10:13:35,049 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-09-16 10:13:35,050 INFO L87 Difference]: Start difference. First operand 11101 states and 33239 transitions. Second operand has 4 states, 3 states have (on average 12.666666666666666) internal successors, (38), 4 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:13:35,289 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:13:35,290 INFO L93 Difference]: Finished difference Result 15825 states and 47273 transitions. [2022-09-16 10:13:35,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-09-16 10:13:35,292 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 12.666666666666666) internal successors, (38), 4 states have internal predecessors, (38), 0 states have call successors, (0), 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 38 [2022-09-16 10:13:35,293 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:13:35,368 INFO L225 Difference]: With dead ends: 15825 [2022-09-16 10:13:35,368 INFO L226 Difference]: Without dead ends: 15825 [2022-09-16 10:13:35,372 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 [2022-09-16 10:13:35,374 INFO L413 NwaCegarLoop]: 155 mSDtfsCounter, 208 mSDsluCounter, 182 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 208 SdHoareTripleChecker+Valid, 326 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-09-16 10:13:35,374 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [208 Valid, 326 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-09-16 10:13:35,473 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15825 states. [2022-09-16 10:13:35,767 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15825 to 13533. [2022-09-16 10:13:35,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13533 states, 13385 states have (on average 3.0984684348150915) internal successors, (41473), 13532 states have internal predecessors, (41473), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:13:35,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13533 states to 13533 states and 41473 transitions. [2022-09-16 10:13:35,863 INFO L78 Accepts]: Start accepts. Automaton has 13533 states and 41473 transitions. Word has length 38 [2022-09-16 10:13:35,865 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:13:35,865 INFO L495 AbstractCegarLoop]: Abstraction has 13533 states and 41473 transitions. [2022-09-16 10:13:35,870 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 12.666666666666666) internal successors, (38), 4 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:13:35,870 INFO L276 IsEmpty]: Start isEmpty. Operand 13533 states and 41473 transitions. [2022-09-16 10:13:35,875 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2022-09-16 10:13:35,875 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:13:35,875 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:13:35,875 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-09-16 10:13:35,875 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2022-09-16 10:13:35,876 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:13:35,876 INFO L85 PathProgramCache]: Analyzing trace with hash -1214232894, now seen corresponding path program 1 times [2022-09-16 10:13:35,876 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:13:35,876 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [926221927] [2022-09-16 10:13:35,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:13:35,876 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:13:35,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:13:36,080 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:13:36,081 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:13:36,081 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [926221927] [2022-09-16 10:13:36,081 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [926221927] provided 0 perfect and 1 imperfect interpolant sequences [2022-09-16 10:13:36,081 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1726686257] [2022-09-16 10:13:36,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:13:36,082 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 10:13:36,082 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-16 10:13:36,087 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) [2022-09-16 10:13:36,109 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-09-16 10:13:36,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:13:36,174 INFO L263 TraceCheckSpWp]: Trace formula consists of 120 conjuncts, 4 conjunts are in the unsatisfiable core [2022-09-16 10:13:36,178 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-16 10:13:36,285 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:13:36,285 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-09-16 10:13:36,398 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:13:36,399 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1726686257] provided 0 perfect and 2 imperfect interpolant sequences [2022-09-16 10:13:36,399 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-09-16 10:13:36,399 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 10 [2022-09-16 10:13:36,399 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1904805795] [2022-09-16 10:13:36,399 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-09-16 10:13:36,400 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-09-16 10:13:36,400 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:13:36,400 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-09-16 10:13:36,400 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=69, Unknown=0, NotChecked=0, Total=110 [2022-09-16 10:13:36,401 INFO L87 Difference]: Start difference. First operand 13533 states and 41473 transitions. Second operand has 11 states, 10 states have (on average 7.7) internal successors, (77), 11 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:13:37,039 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:13:37,040 INFO L93 Difference]: Finished difference Result 53588 states and 158254 transitions. [2022-09-16 10:13:37,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-09-16 10:13:37,040 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 7.7) internal successors, (77), 11 states have internal predecessors, (77), 0 states have call successors, (0), 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 43 [2022-09-16 10:13:37,041 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:13:37,433 INFO L225 Difference]: With dead ends: 53588 [2022-09-16 10:13:37,433 INFO L226 Difference]: Without dead ends: 53588 [2022-09-16 10:13:37,434 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 80 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=143, Invalid=237, Unknown=0, NotChecked=0, Total=380 [2022-09-16 10:13:37,435 INFO L413 NwaCegarLoop]: 116 mSDtfsCounter, 1753 mSDsluCounter, 907 mSDsCounter, 0 mSdLazyCounter, 114 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1753 SdHoareTripleChecker+Valid, 1017 SdHoareTripleChecker+Invalid, 171 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 114 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-09-16 10:13:37,435 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1753 Valid, 1017 Invalid, 171 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 114 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-09-16 10:13:37,510 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53588 states. [2022-09-16 10:13:38,515 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53588 to 32695. [2022-09-16 10:13:38,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32695 states, 32547 states have (on average 3.185055458260362) internal successors, (103664), 32694 states have internal predecessors, (103664), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:13:38,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32695 states to 32695 states and 103664 transitions. [2022-09-16 10:13:38,749 INFO L78 Accepts]: Start accepts. Automaton has 32695 states and 103664 transitions. Word has length 43 [2022-09-16 10:13:38,750 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:13:38,750 INFO L495 AbstractCegarLoop]: Abstraction has 32695 states and 103664 transitions. [2022-09-16 10:13:38,750 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 7.7) internal successors, (77), 11 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:13:38,751 INFO L276 IsEmpty]: Start isEmpty. Operand 32695 states and 103664 transitions. [2022-09-16 10:13:38,755 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2022-09-16 10:13:38,755 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:13:38,755 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:13:38,785 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-09-16 10:13:38,979 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 10:13:38,980 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting t1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2022-09-16 10:13:38,981 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:13:38,981 INFO L85 PathProgramCache]: Analyzing trace with hash -1214232893, now seen corresponding path program 1 times [2022-09-16 10:13:38,981 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:13:38,981 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [88165700] [2022-09-16 10:13:38,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:13:38,982 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:13:39,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:13:39,049 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:13:39,050 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:13:39,050 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [88165700] [2022-09-16 10:13:39,050 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [88165700] provided 0 perfect and 1 imperfect interpolant sequences [2022-09-16 10:13:39,050 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [292545137] [2022-09-16 10:13:39,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:13:39,051 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 10:13:39,051 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-16 10:13:39,052 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) [2022-09-16 10:13:39,054 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-09-16 10:13:39,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:13:39,119 INFO L263 TraceCheckSpWp]: Trace formula consists of 121 conjuncts, 4 conjunts are in the unsatisfiable core [2022-09-16 10:13:39,121 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-16 10:13:39,197 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:13:39,197 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-09-16 10:13:39,199 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [292545137] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:13:39,199 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-09-16 10:13:39,199 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 7 [2022-09-16 10:13:39,200 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [519173131] [2022-09-16 10:13:39,201 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:13:39,202 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-09-16 10:13:39,202 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:13:39,202 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-09-16 10:13:39,202 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-09-16 10:13:39,203 INFO L87 Difference]: Start difference. First operand 32695 states and 103664 transitions. Second operand has 5 states, 4 states have (on average 10.75) internal successors, (43), 5 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:13:39,651 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:13:39,651 INFO L93 Difference]: Finished difference Result 38458 states and 117887 transitions. [2022-09-16 10:13:39,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-09-16 10:13:39,652 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 10.75) internal successors, (43), 5 states have internal predecessors, (43), 0 states have call successors, (0), 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 43 [2022-09-16 10:13:39,654 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:13:39,997 INFO L225 Difference]: With dead ends: 38458 [2022-09-16 10:13:39,997 INFO L226 Difference]: Without dead ends: 38458 [2022-09-16 10:13:40,001 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-09-16 10:13:40,004 INFO L413 NwaCegarLoop]: 153 mSDtfsCounter, 220 mSDsluCounter, 121 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 220 SdHoareTripleChecker+Valid, 272 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-09-16 10:13:40,005 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [220 Valid, 272 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-09-16 10:13:40,078 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38458 states. [2022-09-16 10:13:40,726 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38458 to 29149. [2022-09-16 10:13:40,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29149 states, 29055 states have (on average 3.0905524006195146) internal successors, (89796), 29148 states have internal predecessors, (89796), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:13:41,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29149 states to 29149 states and 89796 transitions. [2022-09-16 10:13:41,021 INFO L78 Accepts]: Start accepts. Automaton has 29149 states and 89796 transitions. Word has length 43 [2022-09-16 10:13:41,022 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:13:41,022 INFO L495 AbstractCegarLoop]: Abstraction has 29149 states and 89796 transitions. [2022-09-16 10:13:41,022 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 10.75) internal successors, (43), 5 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:13:41,022 INFO L276 IsEmpty]: Start isEmpty. Operand 29149 states and 89796 transitions. [2022-09-16 10:13:41,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2022-09-16 10:13:41,033 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:13:41,033 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:13:41,059 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-09-16 10:13:41,247 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3 [2022-09-16 10:13:41,248 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting t2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2022-09-16 10:13:41,248 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:13:41,249 INFO L85 PathProgramCache]: Analyzing trace with hash -447258493, now seen corresponding path program 1 times [2022-09-16 10:13:41,249 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:13:41,249 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1827580935] [2022-09-16 10:13:41,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:13:41,249 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:13:41,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:13:41,320 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:13:41,320 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:13:41,320 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1827580935] [2022-09-16 10:13:41,321 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1827580935] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:13:41,321 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:13:41,321 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-09-16 10:13:41,321 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [490023891] [2022-09-16 10:13:41,321 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:13:41,321 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-09-16 10:13:41,321 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:13:41,322 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-09-16 10:13:41,322 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-09-16 10:13:41,322 INFO L87 Difference]: Start difference. First operand 29149 states and 89796 transitions. Second operand has 4 states, 3 states have (on average 14.666666666666666) internal successors, (44), 4 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:13:41,518 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:13:41,518 INFO L93 Difference]: Finished difference Result 31125 states and 94762 transitions. [2022-09-16 10:13:41,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-09-16 10:13:41,519 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 14.666666666666666) internal successors, (44), 4 states have internal predecessors, (44), 0 states have call successors, (0), 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 44 [2022-09-16 10:13:41,519 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:13:41,617 INFO L225 Difference]: With dead ends: 31125 [2022-09-16 10:13:41,617 INFO L226 Difference]: Without dead ends: 31125 [2022-09-16 10:13:41,617 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 [2022-09-16 10:13:41,618 INFO L413 NwaCegarLoop]: 151 mSDtfsCounter, 191 mSDsluCounter, 174 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 191 SdHoareTripleChecker+Valid, 320 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-09-16 10:13:41,618 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [191 Valid, 320 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-09-16 10:13:41,682 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31125 states. [2022-09-16 10:13:42,350 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31125 to 29643. [2022-09-16 10:13:42,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29643 states, 29549 states have (on average 3.073200446715625) internal successors, (90810), 29642 states have internal predecessors, (90810), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:13:42,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29643 states to 29643 states and 90810 transitions. [2022-09-16 10:13:42,470 INFO L78 Accepts]: Start accepts. Automaton has 29643 states and 90810 transitions. Word has length 44 [2022-09-16 10:13:42,470 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:13:42,471 INFO L495 AbstractCegarLoop]: Abstraction has 29643 states and 90810 transitions. [2022-09-16 10:13:42,471 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 14.666666666666666) internal successors, (44), 4 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:13:42,471 INFO L276 IsEmpty]: Start isEmpty. Operand 29643 states and 90810 transitions. [2022-09-16 10:13:42,472 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2022-09-16 10:13:42,472 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:13:42,472 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:13:42,472 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-09-16 10:13:42,472 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting t1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2022-09-16 10:13:42,472 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:13:42,473 INFO L85 PathProgramCache]: Analyzing trace with hash 1353304293, now seen corresponding path program 1 times [2022-09-16 10:13:42,473 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:13:42,473 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1096849090] [2022-09-16 10:13:42,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:13:42,473 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:13:42,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:13:42,527 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-09-16 10:13:42,527 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:13:42,527 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1096849090] [2022-09-16 10:13:42,528 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1096849090] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:13:42,528 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:13:42,528 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-09-16 10:13:42,528 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1358123935] [2022-09-16 10:13:42,528 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:13:42,528 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-09-16 10:13:42,528 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:13:42,529 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-09-16 10:13:42,529 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-09-16 10:13:42,529 INFO L87 Difference]: Start difference. First operand 29643 states and 90810 transitions. Second operand has 4 states, 3 states have (on average 15.0) internal successors, (45), 4 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:13:42,901 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:13:42,901 INFO L93 Difference]: Finished difference Result 28453 states and 86904 transitions. [2022-09-16 10:13:42,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-09-16 10:13:42,903 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 15.0) internal successors, (45), 4 states have internal predecessors, (45), 0 states have call successors, (0), 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 [2022-09-16 10:13:42,903 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:13:42,990 INFO L225 Difference]: With dead ends: 28453 [2022-09-16 10:13:42,990 INFO L226 Difference]: Without dead ends: 28453 [2022-09-16 10:13:42,991 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-09-16 10:13:42,991 INFO L413 NwaCegarLoop]: 152 mSDtfsCounter, 206 mSDsluCounter, 170 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 206 SdHoareTripleChecker+Valid, 317 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-09-16 10:13:42,992 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [206 Valid, 317 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-09-16 10:13:43,048 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28453 states. [2022-09-16 10:13:43,591 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28453 to 28453. [2022-09-16 10:13:43,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28453 states, 28383 states have (on average 3.061832787231794) internal successors, (86904), 28452 states have internal predecessors, (86904), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:13:43,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28453 states to 28453 states and 86904 transitions. [2022-09-16 10:13:43,716 INFO L78 Accepts]: Start accepts. Automaton has 28453 states and 86904 transitions. Word has length 45 [2022-09-16 10:13:43,717 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:13:43,717 INFO L495 AbstractCegarLoop]: Abstraction has 28453 states and 86904 transitions. [2022-09-16 10:13:43,717 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 15.0) internal successors, (45), 4 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:13:43,717 INFO L276 IsEmpty]: Start isEmpty. Operand 28453 states and 86904 transitions. [2022-09-16 10:13:43,718 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2022-09-16 10:13:43,718 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:13:43,718 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:13:43,718 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-09-16 10:13:43,718 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2022-09-16 10:13:43,719 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:13:43,719 INFO L85 PathProgramCache]: Analyzing trace with hash 2117796030, now seen corresponding path program 1 times [2022-09-16 10:13:43,719 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:13:43,719 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [675493558] [2022-09-16 10:13:43,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:13:43,719 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:13:43,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:13:43,778 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:13:43,778 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:13:43,779 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [675493558] [2022-09-16 10:13:43,779 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [675493558] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:13:43,779 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:13:43,779 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-09-16 10:13:43,779 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [196971111] [2022-09-16 10:13:43,779 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:13:43,779 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-09-16 10:13:43,779 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:13:43,780 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-09-16 10:13:43,780 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-09-16 10:13:43,780 INFO L87 Difference]: Start difference. First operand 28453 states and 86904 transitions. Second operand has 4 states, 3 states have (on average 15.333333333333334) internal successors, (46), 4 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:13:44,214 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:13:44,214 INFO L93 Difference]: Finished difference Result 45435 states and 138916 transitions. [2022-09-16 10:13:44,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-09-16 10:13:44,215 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 15.333333333333334) internal successors, (46), 4 states have internal predecessors, (46), 0 states have call successors, (0), 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 46 [2022-09-16 10:13:44,215 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:13:44,327 INFO L225 Difference]: With dead ends: 45435 [2022-09-16 10:13:44,327 INFO L226 Difference]: Without dead ends: 45435 [2022-09-16 10:13:44,327 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-09-16 10:13:44,328 INFO L413 NwaCegarLoop]: 96 mSDtfsCounter, 109 mSDsluCounter, 133 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 109 SdHoareTripleChecker+Valid, 225 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-09-16 10:13:44,329 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [109 Valid, 225 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-09-16 10:13:44,405 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45435 states. [2022-09-16 10:13:45,201 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45435 to 30688. [2022-09-16 10:13:45,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30688 states, 30618 states have (on average 3.0865503951923703) internal successors, (94504), 30687 states have internal predecessors, (94504), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:13:45,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30688 states to 30688 states and 94504 transitions. [2022-09-16 10:13:45,359 INFO L78 Accepts]: Start accepts. Automaton has 30688 states and 94504 transitions. Word has length 46 [2022-09-16 10:13:45,360 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:13:45,360 INFO L495 AbstractCegarLoop]: Abstraction has 30688 states and 94504 transitions. [2022-09-16 10:13:45,360 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 15.333333333333334) internal successors, (46), 4 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:13:45,360 INFO L276 IsEmpty]: Start isEmpty. Operand 30688 states and 94504 transitions. [2022-09-16 10:13:45,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2022-09-16 10:13:45,361 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:13:45,361 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:13:45,361 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-09-16 10:13:45,361 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting t1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2022-09-16 10:13:45,362 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:13:45,362 INFO L85 PathProgramCache]: Analyzing trace with hash -997239562, now seen corresponding path program 1 times [2022-09-16 10:13:45,362 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:13:45,362 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [803376679] [2022-09-16 10:13:45,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:13:45,363 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:13:45,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:13:45,419 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:13:45,420 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:13:45,420 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [803376679] [2022-09-16 10:13:45,420 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [803376679] provided 0 perfect and 1 imperfect interpolant sequences [2022-09-16 10:13:45,420 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1575220963] [2022-09-16 10:13:45,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:13:45,420 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 10:13:45,420 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-16 10:13:45,422 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) [2022-09-16 10:13:45,423 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-09-16 10:13:45,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:13:45,488 INFO L263 TraceCheckSpWp]: Trace formula consists of 127 conjuncts, 5 conjunts are in the unsatisfiable core [2022-09-16 10:13:45,493 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-16 10:13:45,536 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:13:45,536 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-09-16 10:13:45,536 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1575220963] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:13:45,536 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-09-16 10:13:45,536 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2022-09-16 10:13:45,536 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [129778424] [2022-09-16 10:13:45,537 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:13:45,538 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-09-16 10:13:45,538 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:13:45,538 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-09-16 10:13:45,538 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-09-16 10:13:45,538 INFO L87 Difference]: Start difference. First operand 30688 states and 94504 transitions. Second operand has 6 states, 5 states have (on average 9.2) internal successors, (46), 6 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:13:45,790 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:13:45,790 INFO L93 Difference]: Finished difference Result 31824 states and 97044 transitions. [2022-09-16 10:13:45,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-09-16 10:13:45,791 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 9.2) internal successors, (46), 6 states have internal predecessors, (46), 0 states have call successors, (0), 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 46 [2022-09-16 10:13:45,791 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:13:45,878 INFO L225 Difference]: With dead ends: 31824 [2022-09-16 10:13:45,878 INFO L226 Difference]: Without dead ends: 31824 [2022-09-16 10:13:45,879 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2022-09-16 10:13:45,879 INFO L413 NwaCegarLoop]: 267 mSDtfsCounter, 331 mSDsluCounter, 526 mSDsCounter, 0 mSdLazyCounter, 64 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 331 SdHoareTripleChecker+Valid, 773 SdHoareTripleChecker+Invalid, 68 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 64 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-09-16 10:13:45,879 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [331 Valid, 773 Invalid, 68 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 64 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-09-16 10:13:45,935 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31824 states. [2022-09-16 10:13:46,526 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31824 to 25480. [2022-09-16 10:13:46,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25480 states, 25434 states have (on average 3.06526696547928) internal successors, (77962), 25479 states have internal predecessors, (77962), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:13:46,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25480 states to 25480 states and 77962 transitions. [2022-09-16 10:13:46,828 INFO L78 Accepts]: Start accepts. Automaton has 25480 states and 77962 transitions. Word has length 46 [2022-09-16 10:13:46,828 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:13:46,829 INFO L495 AbstractCegarLoop]: Abstraction has 25480 states and 77962 transitions. [2022-09-16 10:13:46,829 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 9.2) internal successors, (46), 6 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:13:46,829 INFO L276 IsEmpty]: Start isEmpty. Operand 25480 states and 77962 transitions. [2022-09-16 10:13:46,831 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2022-09-16 10:13:46,831 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:13:46,831 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:13:46,848 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-09-16 10:13:47,034 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 10:13:47,034 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting t2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2022-09-16 10:13:47,035 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:13:47,035 INFO L85 PathProgramCache]: Analyzing trace with hash 966995920, now seen corresponding path program 1 times [2022-09-16 10:13:47,035 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:13:47,035 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [441394848] [2022-09-16 10:13:47,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:13:47,035 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:13:47,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:13:47,072 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-09-16 10:13:47,073 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:13:47,073 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [441394848] [2022-09-16 10:13:47,073 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [441394848] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:13:47,073 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:13:47,073 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-09-16 10:13:47,073 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1451704332] [2022-09-16 10:13:47,073 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:13:47,074 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-09-16 10:13:47,074 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:13:47,074 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-09-16 10:13:47,074 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-09-16 10:13:47,075 INFO L87 Difference]: Start difference. First operand 25480 states and 77962 transitions. Second operand has 4 states, 3 states have (on average 17.0) internal successors, (51), 4 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:13:47,249 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:13:47,249 INFO L93 Difference]: Finished difference Result 24742 states and 75730 transitions. [2022-09-16 10:13:47,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-09-16 10:13:47,250 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 17.0) internal successors, (51), 4 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 51 [2022-09-16 10:13:47,250 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:13:47,337 INFO L225 Difference]: With dead ends: 24742 [2022-09-16 10:13:47,337 INFO L226 Difference]: Without dead ends: 24742 [2022-09-16 10:13:47,338 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-09-16 10:13:47,338 INFO L413 NwaCegarLoop]: 143 mSDtfsCounter, 187 mSDsluCounter, 161 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 187 SdHoareTripleChecker+Valid, 300 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-09-16 10:13:47,339 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [187 Valid, 300 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-09-16 10:13:47,377 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24742 states. [2022-09-16 10:13:47,817 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24742 to 24742. [2022-09-16 10:13:47,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24742 states, 24708 states have (on average 3.0649991905455725) internal successors, (75730), 24741 states have internal predecessors, (75730), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:13:47,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24742 states to 24742 states and 75730 transitions. [2022-09-16 10:13:47,917 INFO L78 Accepts]: Start accepts. Automaton has 24742 states and 75730 transitions. Word has length 51 [2022-09-16 10:13:47,917 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:13:47,917 INFO L495 AbstractCegarLoop]: Abstraction has 24742 states and 75730 transitions. [2022-09-16 10:13:47,917 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 17.0) internal successors, (51), 4 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:13:47,918 INFO L276 IsEmpty]: Start isEmpty. Operand 24742 states and 75730 transitions. [2022-09-16 10:13:47,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2022-09-16 10:13:47,920 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:13:47,920 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:13:47,920 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-09-16 10:13:47,920 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting t2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2022-09-16 10:13:47,921 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:13:47,921 INFO L85 PathProgramCache]: Analyzing trace with hash -87897220, now seen corresponding path program 1 times [2022-09-16 10:13:47,921 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:13:47,921 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [259053697] [2022-09-16 10:13:47,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:13:47,921 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:13:47,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:13:47,978 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:13:47,979 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:13:47,979 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [259053697] [2022-09-16 10:13:47,979 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [259053697] provided 0 perfect and 1 imperfect interpolant sequences [2022-09-16 10:13:47,979 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [455464106] [2022-09-16 10:13:47,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:13:47,979 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 10:13:47,980 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-16 10:13:47,981 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) [2022-09-16 10:13:47,997 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-09-16 10:13:48,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:13:48,051 INFO L263 TraceCheckSpWp]: Trace formula consists of 147 conjuncts, 4 conjunts are in the unsatisfiable core [2022-09-16 10:13:48,053 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-16 10:13:48,084 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:13:48,085 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-09-16 10:13:48,085 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [455464106] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:13:48,085 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-09-16 10:13:48,085 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 8 [2022-09-16 10:13:48,085 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [38088178] [2022-09-16 10:13:48,085 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:13:48,086 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-09-16 10:13:48,086 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:13:48,086 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-09-16 10:13:48,086 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2022-09-16 10:13:48,086 INFO L87 Difference]: Start difference. First operand 24742 states and 75730 transitions. Second operand has 5 states, 4 states have (on average 13.0) internal successors, (52), 5 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:13:48,218 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:13:48,218 INFO L93 Difference]: Finished difference Result 24004 states and 73498 transitions. [2022-09-16 10:13:48,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-09-16 10:13:48,218 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 13.0) internal successors, (52), 5 states have internal predecessors, (52), 0 states have call successors, (0), 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 52 [2022-09-16 10:13:48,219 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:13:48,282 INFO L225 Difference]: With dead ends: 24004 [2022-09-16 10:13:48,283 INFO L226 Difference]: Without dead ends: 24004 [2022-09-16 10:13:48,283 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2022-09-16 10:13:48,284 INFO L413 NwaCegarLoop]: 142 mSDtfsCounter, 188 mSDsluCounter, 106 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 188 SdHoareTripleChecker+Valid, 245 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-09-16 10:13:48,284 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [188 Valid, 245 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-09-16 10:13:48,515 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24004 states. [2022-09-16 10:13:48,912 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24004 to 21278. [2022-09-16 10:13:48,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21278 states, 21256 states have (on average 3.0487391795257808) internal successors, (64804), 21277 states have internal predecessors, (64804), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:13:49,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21278 states to 21278 states and 64804 transitions. [2022-09-16 10:13:49,004 INFO L78 Accepts]: Start accepts. Automaton has 21278 states and 64804 transitions. Word has length 52 [2022-09-16 10:13:49,004 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:13:49,004 INFO L495 AbstractCegarLoop]: Abstraction has 21278 states and 64804 transitions. [2022-09-16 10:13:49,004 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 13.0) internal successors, (52), 5 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:13:49,005 INFO L276 IsEmpty]: Start isEmpty. Operand 21278 states and 64804 transitions. [2022-09-16 10:13:49,009 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2022-09-16 10:13:49,010 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:13:49,010 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:13:49,027 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-09-16 10:13:49,211 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 10:13:49,211 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2022-09-16 10:13:49,212 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:13:49,212 INFO L85 PathProgramCache]: Analyzing trace with hash -1641089002, now seen corresponding path program 1 times [2022-09-16 10:13:49,212 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:13:49,212 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1239311641] [2022-09-16 10:13:49,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:13:49,212 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:13:49,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:13:49,285 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:13:49,285 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:13:49,285 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1239311641] [2022-09-16 10:13:49,285 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1239311641] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:13:49,285 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:13:49,286 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-09-16 10:13:49,286 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [704388094] [2022-09-16 10:13:49,286 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:13:49,286 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-09-16 10:13:49,286 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:13:49,287 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-09-16 10:13:49,287 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-09-16 10:13:49,287 INFO L87 Difference]: Start difference. First operand 21278 states and 64804 transitions. Second operand has 4 states, 3 states have (on average 17.333333333333332) internal successors, (52), 4 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:13:49,625 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:13:49,626 INFO L93 Difference]: Finished difference Result 25454 states and 76979 transitions. [2022-09-16 10:13:49,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-09-16 10:13:49,626 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 17.333333333333332) internal successors, (52), 4 states have internal predecessors, (52), 0 states have call successors, (0), 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 52 [2022-09-16 10:13:49,626 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:13:49,685 INFO L225 Difference]: With dead ends: 25454 [2022-09-16 10:13:49,685 INFO L226 Difference]: Without dead ends: 25454 [2022-09-16 10:13:49,685 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 [2022-09-16 10:13:49,686 INFO L413 NwaCegarLoop]: 117 mSDtfsCounter, 109 mSDsluCounter, 163 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 109 SdHoareTripleChecker+Valid, 274 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-09-16 10:13:49,686 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [109 Valid, 274 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-09-16 10:13:49,723 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25454 states. [2022-09-16 10:13:50,039 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25454 to 24410. [2022-09-16 10:13:50,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24410 states, 24388 states have (on average 3.026365425619157) internal successors, (73807), 24409 states have internal predecessors, (73807), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:13:50,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24410 states to 24410 states and 73807 transitions. [2022-09-16 10:13:50,337 INFO L78 Accepts]: Start accepts. Automaton has 24410 states and 73807 transitions. Word has length 52 [2022-09-16 10:13:50,337 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:13:50,337 INFO L495 AbstractCegarLoop]: Abstraction has 24410 states and 73807 transitions. [2022-09-16 10:13:50,338 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 17.333333333333332) internal successors, (52), 4 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:13:50,338 INFO L276 IsEmpty]: Start isEmpty. Operand 24410 states and 73807 transitions. [2022-09-16 10:13:50,344 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2022-09-16 10:13:50,345 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:13:50,345 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:13:50,345 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-09-16 10:13:50,345 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2022-09-16 10:13:50,346 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:13:50,346 INFO L85 PathProgramCache]: Analyzing trace with hash 1948310297, now seen corresponding path program 1 times [2022-09-16 10:13:50,346 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:13:50,346 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1628992675] [2022-09-16 10:13:50,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:13:50,346 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:13:50,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:13:50,434 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:13:50,434 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:13:50,434 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1628992675] [2022-09-16 10:13:50,434 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1628992675] provided 0 perfect and 1 imperfect interpolant sequences [2022-09-16 10:13:50,434 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1694479122] [2022-09-16 10:13:50,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:13:50,434 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 10:13:50,435 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-16 10:13:50,436 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) [2022-09-16 10:13:50,437 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-09-16 10:13:50,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:13:50,508 INFO L263 TraceCheckSpWp]: Trace formula consists of 145 conjuncts, 6 conjunts are in the unsatisfiable core [2022-09-16 10:13:50,510 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-16 10:13:50,671 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:13:50,671 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-09-16 10:13:50,779 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:13:50,779 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1694479122] provided 0 perfect and 2 imperfect interpolant sequences [2022-09-16 10:13:50,779 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-09-16 10:13:50,779 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 16 [2022-09-16 10:13:50,780 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [108145099] [2022-09-16 10:13:50,780 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-09-16 10:13:50,780 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-09-16 10:13:50,780 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:13:50,781 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-09-16 10:13:50,781 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=206, Unknown=0, NotChecked=0, Total=272 [2022-09-16 10:13:50,781 INFO L87 Difference]: Start difference. First operand 24410 states and 73807 transitions. Second operand has 17 states, 16 states have (on average 9.0625) internal successors, (145), 17 states have internal predecessors, (145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:13:51,294 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:13:51,294 INFO L93 Difference]: Finished difference Result 52304 states and 158483 transitions. [2022-09-16 10:13:51,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-09-16 10:13:51,295 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 9.0625) internal successors, (145), 17 states have internal predecessors, (145), 0 states have call successors, (0), 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 [2022-09-16 10:13:51,295 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:13:51,506 INFO L225 Difference]: With dead ends: 52304 [2022-09-16 10:13:51,507 INFO L226 Difference]: Without dead ends: 52304 [2022-09-16 10:13:51,507 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 124 GetRequests, 103 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 104 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=144, Invalid=362, Unknown=0, NotChecked=0, Total=506 [2022-09-16 10:13:51,508 INFO L413 NwaCegarLoop]: 116 mSDtfsCounter, 1295 mSDsluCounter, 824 mSDsCounter, 0 mSdLazyCounter, 155 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1295 SdHoareTripleChecker+Valid, 906 SdHoareTripleChecker+Invalid, 186 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 155 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-09-16 10:13:51,508 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1295 Valid, 906 Invalid, 186 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 155 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-09-16 10:13:51,788 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52304 states. [2022-09-16 10:13:52,470 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52304 to 32240. [2022-09-16 10:13:52,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32240 states, 32218 states have (on average 3.109721273822087) internal successors, (100189), 32239 states have internal predecessors, (100189), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:13:52,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32240 states to 32240 states and 100189 transitions. [2022-09-16 10:13:52,628 INFO L78 Accepts]: Start accepts. Automaton has 32240 states and 100189 transitions. Word has length 57 [2022-09-16 10:13:52,628 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:13:52,628 INFO L495 AbstractCegarLoop]: Abstraction has 32240 states and 100189 transitions. [2022-09-16 10:13:52,629 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 9.0625) internal successors, (145), 17 states have internal predecessors, (145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:13:52,629 INFO L276 IsEmpty]: Start isEmpty. Operand 32240 states and 100189 transitions. [2022-09-16 10:13:52,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2022-09-16 10:13:52,637 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:13:52,637 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:13:52,654 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-09-16 10:13:52,839 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,SelfDestructingSolverStorable11 [2022-09-16 10:13:52,840 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2022-09-16 10:13:52,840 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:13:52,840 INFO L85 PathProgramCache]: Analyzing trace with hash 268077310, now seen corresponding path program 1 times [2022-09-16 10:13:52,840 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:13:52,840 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1288674942] [2022-09-16 10:13:52,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:13:52,841 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:13:52,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:13:52,944 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:13:52,944 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:13:52,944 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1288674942] [2022-09-16 10:13:52,944 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1288674942] provided 0 perfect and 1 imperfect interpolant sequences [2022-09-16 10:13:52,944 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1583256843] [2022-09-16 10:13:52,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:13:52,945 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 10:13:52,945 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-16 10:13:52,946 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) [2022-09-16 10:13:52,947 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-09-16 10:13:53,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:13:53,018 INFO L263 TraceCheckSpWp]: Trace formula consists of 146 conjuncts, 6 conjunts are in the unsatisfiable core [2022-09-16 10:13:53,027 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-16 10:13:53,197 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:13:53,197 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-09-16 10:13:53,197 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1583256843] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:13:53,197 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-09-16 10:13:53,197 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [6] total 11 [2022-09-16 10:13:53,198 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [685579803] [2022-09-16 10:13:53,198 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:13:53,198 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-09-16 10:13:53,198 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:13:53,198 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-09-16 10:13:53,199 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2022-09-16 10:13:53,199 INFO L87 Difference]: Start difference. First operand 32240 states and 100189 transitions. Second operand has 7 states, 6 states have (on average 9.666666666666666) internal successors, (58), 7 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) [2022-09-16 10:13:53,436 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:13:53,437 INFO L93 Difference]: Finished difference Result 31718 states and 98081 transitions. [2022-09-16 10:13:53,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-09-16 10:13:53,437 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 9.666666666666666) internal successors, (58), 7 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) Word has length 58 [2022-09-16 10:13:53,437 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:13:53,530 INFO L225 Difference]: With dead ends: 31718 [2022-09-16 10:13:53,531 INFO L226 Difference]: Without dead ends: 31718 [2022-09-16 10:13:53,531 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=49, Invalid=133, Unknown=0, NotChecked=0, Total=182 [2022-09-16 10:13:53,531 INFO L413 NwaCegarLoop]: 139 mSDtfsCounter, 220 mSDsluCounter, 285 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 220 SdHoareTripleChecker+Valid, 408 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-09-16 10:13:53,532 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [220 Valid, 408 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-09-16 10:13:53,579 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31718 states. [2022-09-16 10:13:54,252 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31718 to 31718. [2022-09-16 10:13:54,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31718 states, 31700 states have (on average 3.09403785488959) internal successors, (98081), 31717 states have internal predecessors, (98081), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:13:54,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31718 states to 31718 states and 98081 transitions. [2022-09-16 10:13:54,621 INFO L78 Accepts]: Start accepts. Automaton has 31718 states and 98081 transitions. Word has length 58 [2022-09-16 10:13:54,621 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:13:54,622 INFO L495 AbstractCegarLoop]: Abstraction has 31718 states and 98081 transitions. [2022-09-16 10:13:54,622 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 9.666666666666666) internal successors, (58), 7 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) [2022-09-16 10:13:54,622 INFO L276 IsEmpty]: Start isEmpty. Operand 31718 states and 98081 transitions. [2022-09-16 10:13:54,643 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2022-09-16 10:13:54,643 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:13:54,643 INFO L195 NwaCegarLoop]: trace histogram [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, 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] [2022-09-16 10:13:54,671 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-09-16 10:13:54,864 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 10:13:54,864 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting t1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2022-09-16 10:13:54,865 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:13:54,865 INFO L85 PathProgramCache]: Analyzing trace with hash -1976694235, now seen corresponding path program 1 times [2022-09-16 10:13:54,865 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:13:54,865 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1126972064] [2022-09-16 10:13:54,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:13:54,865 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:13:54,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:13:54,965 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:13:54,965 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:13:54,965 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1126972064] [2022-09-16 10:13:54,965 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1126972064] provided 0 perfect and 1 imperfect interpolant sequences [2022-09-16 10:13:54,965 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1678472889] [2022-09-16 10:13:54,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:13:54,966 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 10:13:54,966 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-16 10:13:54,967 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) [2022-09-16 10:13:54,968 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-09-16 10:13:55,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:13:55,033 INFO L263 TraceCheckSpWp]: Trace formula consists of 163 conjuncts, 6 conjunts are in the unsatisfiable core [2022-09-16 10:13:55,035 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-16 10:13:55,156 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:13:55,157 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-09-16 10:13:55,254 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:13:55,254 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1678472889] provided 0 perfect and 2 imperfect interpolant sequences [2022-09-16 10:13:55,254 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-09-16 10:13:55,254 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 16 [2022-09-16 10:13:55,254 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1086917780] [2022-09-16 10:13:55,254 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-09-16 10:13:55,255 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-09-16 10:13:55,255 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:13:55,255 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-09-16 10:13:55,255 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=102, Invalid=170, Unknown=0, NotChecked=0, Total=272 [2022-09-16 10:13:55,255 INFO L87 Difference]: Start difference. First operand 31718 states and 98081 transitions. Second operand has 17 states, 16 states have (on average 8.0) internal successors, (128), 17 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) [2022-09-16 10:13:56,059 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:13:56,059 INFO L93 Difference]: Finished difference Result 84481 states and 259689 transitions. [2022-09-16 10:13:56,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-09-16 10:13:56,060 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 8.0) internal successors, (128), 17 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) Word has length 60 [2022-09-16 10:13:56,060 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:13:56,564 INFO L225 Difference]: With dead ends: 84481 [2022-09-16 10:13:56,564 INFO L226 Difference]: Without dead ends: 84481 [2022-09-16 10:13:56,564 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 133 GetRequests, 109 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 155 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=249, Invalid=401, Unknown=0, NotChecked=0, Total=650 [2022-09-16 10:13:56,565 INFO L413 NwaCegarLoop]: 95 mSDtfsCounter, 2200 mSDsluCounter, 1087 mSDsCounter, 0 mSdLazyCounter, 120 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2200 SdHoareTripleChecker+Valid, 1176 SdHoareTripleChecker+Invalid, 182 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 120 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-09-16 10:13:56,565 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2200 Valid, 1176 Invalid, 182 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 120 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-09-16 10:13:56,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84481 states. [2022-09-16 10:13:57,980 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84481 to 51980. [2022-09-16 10:13:58,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51980 states, 51962 states have (on average 3.1379662060736693) internal successors, (163055), 51979 states have internal predecessors, (163055), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:13:58,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51980 states to 51980 states and 163055 transitions. [2022-09-16 10:13:58,235 INFO L78 Accepts]: Start accepts. Automaton has 51980 states and 163055 transitions. Word has length 60 [2022-09-16 10:13:58,235 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:13:58,235 INFO L495 AbstractCegarLoop]: Abstraction has 51980 states and 163055 transitions. [2022-09-16 10:13:58,235 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 8.0) internal successors, (128), 17 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) [2022-09-16 10:13:58,236 INFO L276 IsEmpty]: Start isEmpty. Operand 51980 states and 163055 transitions. [2022-09-16 10:13:58,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2022-09-16 10:13:58,244 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:13:58,245 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:13:58,261 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-09-16 10:13:58,446 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 10:13:58,446 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting t2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2022-09-16 10:13:58,447 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:13:58,447 INFO L85 PathProgramCache]: Analyzing trace with hash 747928068, now seen corresponding path program 1 times [2022-09-16 10:13:58,447 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:13:58,447 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [375136281] [2022-09-16 10:13:58,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:13:58,447 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:13:58,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:13:58,506 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:13:58,506 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:13:58,506 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [375136281] [2022-09-16 10:13:58,506 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [375136281] provided 0 perfect and 1 imperfect interpolant sequences [2022-09-16 10:13:58,506 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1597111577] [2022-09-16 10:13:58,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:13:58,507 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 10:13:58,507 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-16 10:13:58,508 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) [2022-09-16 10:13:58,510 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-09-16 10:13:58,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:13:58,574 INFO L263 TraceCheckSpWp]: Trace formula consists of 163 conjuncts, 6 conjunts are in the unsatisfiable core [2022-09-16 10:13:58,579 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-16 10:13:58,696 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:13:58,697 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-09-16 10:13:58,799 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:13:58,800 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1597111577] provided 0 perfect and 2 imperfect interpolant sequences [2022-09-16 10:13:58,800 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-09-16 10:13:58,800 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 16 [2022-09-16 10:13:58,800 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [111955959] [2022-09-16 10:13:58,800 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-09-16 10:13:58,800 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-09-16 10:13:58,800 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:13:58,801 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-09-16 10:13:58,801 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=89, Invalid=183, Unknown=0, NotChecked=0, Total=272 [2022-09-16 10:13:58,801 INFO L87 Difference]: Start difference. First operand 51980 states and 163055 transitions. Second operand has 17 states, 16 states have (on average 8.0) internal successors, (128), 17 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) [2022-09-16 10:14:00,381 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:14:00,381 INFO L93 Difference]: Finished difference Result 147253 states and 454556 transitions. [2022-09-16 10:14:00,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-09-16 10:14:00,382 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 8.0) internal successors, (128), 17 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) Word has length 60 [2022-09-16 10:14:00,382 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:14:01,171 INFO L225 Difference]: With dead ends: 147253 [2022-09-16 10:14:01,171 INFO L226 Difference]: Without dead ends: 147253 [2022-09-16 10:14:01,172 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 140 GetRequests, 109 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 298 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=371, Invalid=685, Unknown=0, NotChecked=0, Total=1056 [2022-09-16 10:14:01,172 INFO L413 NwaCegarLoop]: 95 mSDtfsCounter, 2199 mSDsluCounter, 1642 mSDsCounter, 0 mSdLazyCounter, 202 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2199 SdHoareTripleChecker+Valid, 1725 SdHoareTripleChecker+Invalid, 264 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 202 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-09-16 10:14:01,172 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2199 Valid, 1725 Invalid, 264 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 202 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-09-16 10:14:01,362 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 147253 states. [2022-09-16 10:14:03,644 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 147253 to 78647. [2022-09-16 10:14:03,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78647 states, 78629 states have (on average 3.161479861119943) internal successors, (248584), 78646 states have internal predecessors, (248584), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:14:04,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78647 states to 78647 states and 248584 transitions. [2022-09-16 10:14:04,074 INFO L78 Accepts]: Start accepts. Automaton has 78647 states and 248584 transitions. Word has length 60 [2022-09-16 10:14:04,075 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:14:04,075 INFO L495 AbstractCegarLoop]: Abstraction has 78647 states and 248584 transitions. [2022-09-16 10:14:04,075 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 8.0) internal successors, (128), 17 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) [2022-09-16 10:14:04,075 INFO L276 IsEmpty]: Start isEmpty. Operand 78647 states and 248584 transitions. [2022-09-16 10:14:04,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-09-16 10:14:04,086 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:14:04,086 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:14:04,123 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-09-16 10:14:04,312 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,SelfDestructingSolverStorable14 [2022-09-16 10:14:04,312 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2022-09-16 10:14:04,312 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:14:04,312 INFO L85 PathProgramCache]: Analyzing trace with hash -1331666383, now seen corresponding path program 1 times [2022-09-16 10:14:04,313 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:14:04,313 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1599088565] [2022-09-16 10:14:04,313 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:14:04,313 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:14:04,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:14:04,346 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-09-16 10:14:04,347 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:14:04,347 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1599088565] [2022-09-16 10:14:04,347 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1599088565] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:14:04,347 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:14:04,347 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-09-16 10:14:04,347 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [386501] [2022-09-16 10:14:04,347 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:14:04,348 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-09-16 10:14:04,348 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:14:04,348 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-09-16 10:14:04,348 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-09-16 10:14:04,348 INFO L87 Difference]: Start difference. First operand 78647 states and 248584 transitions. Second operand has 4 states, 3 states have (on average 21.0) internal successors, (63), 4 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) [2022-09-16 10:14:05,179 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:14:05,179 INFO L93 Difference]: Finished difference Result 77354 states and 243278 transitions. [2022-09-16 10:14:05,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-09-16 10:14:05,180 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 21.0) internal successors, (63), 4 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 63 [2022-09-16 10:14:05,180 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:14:05,438 INFO L225 Difference]: With dead ends: 77354 [2022-09-16 10:14:05,439 INFO L226 Difference]: Without dead ends: 77354 [2022-09-16 10:14:05,439 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-09-16 10:14:05,440 INFO L413 NwaCegarLoop]: 114 mSDtfsCounter, 112 mSDsluCounter, 151 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 259 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 [2022-09-16 10:14:05,440 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [112 Valid, 259 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-09-16 10:14:05,551 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77354 states. [2022-09-16 10:14:07,037 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77354 to 77354. [2022-09-16 10:14:07,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77354 states, 77340 states have (on average 3.1455650374967674) internal successors, (243278), 77353 states have internal predecessors, (243278), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:14:07,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77354 states to 77354 states and 243278 transitions. [2022-09-16 10:14:07,778 INFO L78 Accepts]: Start accepts. Automaton has 77354 states and 243278 transitions. Word has length 63 [2022-09-16 10:14:07,778 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:14:07,778 INFO L495 AbstractCegarLoop]: Abstraction has 77354 states and 243278 transitions. [2022-09-16 10:14:07,779 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 21.0) internal successors, (63), 4 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) [2022-09-16 10:14:07,779 INFO L276 IsEmpty]: Start isEmpty. Operand 77354 states and 243278 transitions. [2022-09-16 10:14:07,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-09-16 10:14:07,797 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:14:07,807 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:14:07,808 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-09-16 10:14:07,808 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2022-09-16 10:14:07,808 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:14:07,808 INFO L85 PathProgramCache]: Analyzing trace with hash 1668015338, now seen corresponding path program 1 times [2022-09-16 10:14:07,808 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:14:07,809 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [719660775] [2022-09-16 10:14:07,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:14:07,809 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:14:07,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:14:07,915 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:14:07,915 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:14:07,915 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [719660775] [2022-09-16 10:14:07,915 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [719660775] provided 0 perfect and 1 imperfect interpolant sequences [2022-09-16 10:14:07,915 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1024521459] [2022-09-16 10:14:07,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:14:07,915 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 10:14:07,916 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-16 10:14:07,928 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) [2022-09-16 10:14:07,934 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-09-16 10:14:08,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:14:08,003 INFO L263 TraceCheckSpWp]: Trace formula consists of 156 conjuncts, 4 conjunts are in the unsatisfiable core [2022-09-16 10:14:08,006 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-16 10:14:08,039 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:14:08,039 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-09-16 10:14:08,040 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1024521459] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:14:08,040 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-09-16 10:14:08,040 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 8 [2022-09-16 10:14:08,041 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [402570593] [2022-09-16 10:14:08,041 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:14:08,041 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-09-16 10:14:08,041 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:14:08,042 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-09-16 10:14:08,042 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2022-09-16 10:14:08,042 INFO L87 Difference]: Start difference. First operand 77354 states and 243278 transitions. Second operand has 5 states, 4 states have (on average 16.0) internal successors, (64), 5 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) [2022-09-16 10:14:08,414 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:14:08,414 INFO L93 Difference]: Finished difference Result 76061 states and 237972 transitions. [2022-09-16 10:14:08,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-09-16 10:14:08,415 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 16.0) internal successors, (64), 5 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) Word has length 64 [2022-09-16 10:14:08,415 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:14:08,650 INFO L225 Difference]: With dead ends: 76061 [2022-09-16 10:14:08,650 INFO L226 Difference]: Without dead ends: 76061 [2022-09-16 10:14:08,650 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2022-09-16 10:14:08,651 INFO L413 NwaCegarLoop]: 113 mSDtfsCounter, 127 mSDsluCounter, 107 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 127 SdHoareTripleChecker+Valid, 216 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-09-16 10:14:08,651 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [127 Valid, 216 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-09-16 10:14:09,118 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76061 states. [2022-09-16 10:14:10,351 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76061 to 76061. [2022-09-16 10:14:10,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 76061 states, 76051 states have (on average 3.129110728327044) internal successors, (237972), 76060 states have internal predecessors, (237972), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:14:11,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76061 states to 76061 states and 237972 transitions. [2022-09-16 10:14:11,077 INFO L78 Accepts]: Start accepts. Automaton has 76061 states and 237972 transitions. Word has length 64 [2022-09-16 10:14:11,077 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:14:11,078 INFO L495 AbstractCegarLoop]: Abstraction has 76061 states and 237972 transitions. [2022-09-16 10:14:11,078 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 16.0) internal successors, (64), 5 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) [2022-09-16 10:14:11,078 INFO L276 IsEmpty]: Start isEmpty. Operand 76061 states and 237972 transitions. [2022-09-16 10:14:11,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-09-16 10:14:11,099 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:14:11,099 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:14:11,115 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-09-16 10:14:11,299 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,SelfDestructingSolverStorable16 [2022-09-16 10:14:11,299 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting t1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2022-09-16 10:14:11,300 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:14:11,300 INFO L85 PathProgramCache]: Analyzing trace with hash -1689933468, now seen corresponding path program 1 times [2022-09-16 10:14:11,300 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:14:11,300 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [475441151] [2022-09-16 10:14:11,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:14:11,300 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:14:11,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:14:11,372 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:14:11,372 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:14:11,372 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [475441151] [2022-09-16 10:14:11,372 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [475441151] provided 0 perfect and 1 imperfect interpolant sequences [2022-09-16 10:14:11,372 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1368412612] [2022-09-16 10:14:11,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:14:11,372 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 10:14:11,373 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-16 10:14:11,374 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) [2022-09-16 10:14:11,396 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-09-16 10:14:11,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:14:11,447 INFO L263 TraceCheckSpWp]: Trace formula consists of 175 conjuncts, 7 conjunts are in the unsatisfiable core [2022-09-16 10:14:11,451 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-16 10:14:11,609 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:14:11,609 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-09-16 10:14:11,728 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:14:11,728 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1368412612] provided 0 perfect and 2 imperfect interpolant sequences [2022-09-16 10:14:11,728 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-09-16 10:14:11,728 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 19 [2022-09-16 10:14:11,728 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1631557724] [2022-09-16 10:14:11,728 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-09-16 10:14:11,729 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-09-16 10:14:11,729 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:14:11,729 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-09-16 10:14:11,730 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=116, Invalid=264, Unknown=0, NotChecked=0, Total=380 [2022-09-16 10:14:11,730 INFO L87 Difference]: Start difference. First operand 76061 states and 237972 transitions. Second operand has 20 states, 19 states have (on average 7.842105263157895) internal successors, (149), 20 states have internal predecessors, (149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:14:14,746 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:14:14,746 INFO L93 Difference]: Finished difference Result 267638 states and 818031 transitions. [2022-09-16 10:14:14,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2022-09-16 10:14:14,746 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 19 states have (on average 7.842105263157895) internal successors, (149), 20 states have internal predecessors, (149), 0 states have call successors, (0), 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 67 [2022-09-16 10:14:14,747 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:14:16,161 INFO L225 Difference]: With dead ends: 267638 [2022-09-16 10:14:16,161 INFO L226 Difference]: Without dead ends: 267638 [2022-09-16 10:14:16,162 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 169 GetRequests, 121 SyntacticMatches, 0 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 783 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=794, Invalid=1656, Unknown=0, NotChecked=0, Total=2450 [2022-09-16 10:14:16,162 INFO L413 NwaCegarLoop]: 100 mSDtfsCounter, 4910 mSDsluCounter, 2473 mSDsCounter, 0 mSdLazyCounter, 271 mSolverCounterSat, 132 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4910 SdHoareTripleChecker+Valid, 2558 SdHoareTripleChecker+Invalid, 403 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 132 IncrementalHoareTripleChecker+Valid, 271 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-09-16 10:14:16,163 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4910 Valid, 2558 Invalid, 403 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [132 Valid, 271 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-09-16 10:14:16,483 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 267638 states. [2022-09-16 10:14:20,107 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 267638 to 134279. [2022-09-16 10:14:20,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 134279 states, 134269 states have (on average 3.185791210182544) internal successors, (427753), 134278 states have internal predecessors, (427753), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:14:21,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134279 states to 134279 states and 427753 transitions. [2022-09-16 10:14:21,570 INFO L78 Accepts]: Start accepts. Automaton has 134279 states and 427753 transitions. Word has length 67 [2022-09-16 10:14:21,570 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:14:21,570 INFO L495 AbstractCegarLoop]: Abstraction has 134279 states and 427753 transitions. [2022-09-16 10:14:21,571 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 19 states have (on average 7.842105263157895) internal successors, (149), 20 states have internal predecessors, (149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:14:21,571 INFO L276 IsEmpty]: Start isEmpty. Operand 134279 states and 427753 transitions. [2022-09-16 10:14:21,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2022-09-16 10:14:21,669 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:14:21,669 INFO L195 NwaCegarLoop]: trace histogram [7, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:14:21,695 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-09-16 10:14:21,883 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2022-09-16 10:14:21,884 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting t1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2022-09-16 10:14:21,884 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:14:21,884 INFO L85 PathProgramCache]: Analyzing trace with hash -1762553510, now seen corresponding path program 2 times [2022-09-16 10:14:21,884 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:14:21,884 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1532199765] [2022-09-16 10:14:21,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:14:21,885 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:14:21,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:14:22,054 INFO L134 CoverageAnalysis]: Checked inductivity of 117 backedges. 0 proven. 117 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:14:22,054 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:14:22,054 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1532199765] [2022-09-16 10:14:22,054 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1532199765] provided 0 perfect and 1 imperfect interpolant sequences [2022-09-16 10:14:22,054 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1557815811] [2022-09-16 10:14:22,054 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-09-16 10:14:22,055 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 10:14:22,055 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-16 10:14:22,068 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) [2022-09-16 10:14:22,111 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-09-16 10:14:22,209 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-09-16 10:14:22,209 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-09-16 10:14:22,210 INFO L263 TraceCheckSpWp]: Trace formula consists of 180 conjuncts, 9 conjunts are in the unsatisfiable core [2022-09-16 10:14:22,212 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-16 10:14:22,492 INFO L134 CoverageAnalysis]: Checked inductivity of 117 backedges. 0 proven. 117 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:14:22,493 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-09-16 10:14:22,721 INFO L134 CoverageAnalysis]: Checked inductivity of 117 backedges. 0 proven. 117 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:14:22,721 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1557815811] provided 0 perfect and 2 imperfect interpolant sequences [2022-09-16 10:14:22,721 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-09-16 10:14:22,722 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 25 [2022-09-16 10:14:22,722 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [628972841] [2022-09-16 10:14:22,722 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-09-16 10:14:22,722 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-09-16 10:14:22,722 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:14:22,723 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-09-16 10:14:22,723 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=216, Invalid=434, Unknown=0, NotChecked=0, Total=650 [2022-09-16 10:14:22,723 INFO L87 Difference]: Start difference. First operand 134279 states and 427753 transitions. Second operand has 26 states, 25 states have (on average 7.28) internal successors, (182), 26 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:14:26,300 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:14:26,300 INFO L93 Difference]: Finished difference Result 336387 states and 1043278 transitions. [2022-09-16 10:14:26,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2022-09-16 10:14:26,301 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 25 states have (on average 7.28) internal successors, (182), 26 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 78 [2022-09-16 10:14:26,301 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:14:28,041 INFO L225 Difference]: With dead ends: 336387 [2022-09-16 10:14:28,041 INFO L226 Difference]: Without dead ends: 336387 [2022-09-16 10:14:28,042 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 184 GetRequests, 139 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 363 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=717, Invalid=1445, Unknown=0, NotChecked=0, Total=2162 [2022-09-16 10:14:28,042 INFO L413 NwaCegarLoop]: 93 mSDtfsCounter, 4747 mSDsluCounter, 2066 mSDsCounter, 0 mSdLazyCounter, 233 mSolverCounterSat, 128 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4747 SdHoareTripleChecker+Valid, 2141 SdHoareTripleChecker+Invalid, 361 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 128 IncrementalHoareTripleChecker+Valid, 233 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-09-16 10:14:28,043 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4747 Valid, 2141 Invalid, 361 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [128 Valid, 233 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-09-16 10:14:28,815 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 336387 states. [2022-09-16 10:14:33,728 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 336387 to 198621. [2022-09-16 10:14:34,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 198621 states, 198611 states have (on average 3.2088454315219197) internal successors, (637312), 198620 states have internal predecessors, (637312), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:14:35,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198621 states to 198621 states and 637312 transitions. [2022-09-16 10:14:35,465 INFO L78 Accepts]: Start accepts. Automaton has 198621 states and 637312 transitions. Word has length 78 [2022-09-16 10:14:35,466 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:14:35,466 INFO L495 AbstractCegarLoop]: Abstraction has 198621 states and 637312 transitions. [2022-09-16 10:14:35,466 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 25 states have (on average 7.28) internal successors, (182), 26 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:14:35,466 INFO L276 IsEmpty]: Start isEmpty. Operand 198621 states and 637312 transitions. [2022-09-16 10:14:35,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2022-09-16 10:14:35,536 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:14:35,536 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:14:35,558 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2022-09-16 10:14:35,755 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 10:14:35,756 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2022-09-16 10:14:35,756 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:14:35,756 INFO L85 PathProgramCache]: Analyzing trace with hash 945577465, now seen corresponding path program 2 times [2022-09-16 10:14:35,756 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:14:35,756 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1226343843] [2022-09-16 10:14:35,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:14:35,757 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:14:35,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:14:35,875 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 39 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:14:35,876 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:14:35,876 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1226343843] [2022-09-16 10:14:35,876 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1226343843] provided 0 perfect and 1 imperfect interpolant sequences [2022-09-16 10:14:35,876 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [198640684] [2022-09-16 10:14:35,876 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-09-16 10:14:35,876 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 10:14:35,876 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-16 10:14:35,877 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) [2022-09-16 10:14:35,879 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2022-09-16 10:14:35,945 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-09-16 10:14:35,945 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-09-16 10:14:35,946 INFO L263 TraceCheckSpWp]: Trace formula consists of 177 conjuncts, 12 conjunts are in the unsatisfiable core [2022-09-16 10:14:35,947 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-16 10:14:36,225 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 39 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:14:36,225 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-09-16 10:14:36,440 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 39 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:14:36,441 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [198640684] provided 0 perfect and 2 imperfect interpolant sequences [2022-09-16 10:14:36,441 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-09-16 10:14:36,441 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 34 [2022-09-16 10:14:36,441 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1060372052] [2022-09-16 10:14:36,441 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-09-16 10:14:36,441 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 35 states [2022-09-16 10:14:36,441 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:14:36,442 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2022-09-16 10:14:36,442 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=193, Invalid=997, Unknown=0, NotChecked=0, Total=1190 [2022-09-16 10:14:36,443 INFO L87 Difference]: Start difference. First operand 198621 states and 637312 transitions. Second operand has 35 states, 34 states have (on average 6.205882352941177) internal successors, (211), 35 states have internal predecessors, (211), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:14:43,233 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:14:43,234 INFO L93 Difference]: Finished difference Result 691883 states and 2197908 transitions. [2022-09-16 10:14:43,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-09-16 10:14:43,234 INFO L78 Accepts]: Start accepts. Automaton has has 35 states, 34 states have (on average 6.205882352941177) internal successors, (211), 35 states have internal predecessors, (211), 0 states have call successors, (0), 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 79 [2022-09-16 10:14:43,235 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:14:47,417 INFO L225 Difference]: With dead ends: 691883 [2022-09-16 10:14:47,417 INFO L226 Difference]: Without dead ends: 691883 [2022-09-16 10:14:47,418 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 186 GetRequests, 135 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 807 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=627, Invalid=2129, Unknown=0, NotChecked=0, Total=2756 [2022-09-16 10:14:47,418 INFO L413 NwaCegarLoop]: 114 mSDtfsCounter, 5377 mSDsluCounter, 1953 mSDsCounter, 0 mSdLazyCounter, 295 mSolverCounterSat, 123 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5377 SdHoareTripleChecker+Valid, 1977 SdHoareTripleChecker+Invalid, 418 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 123 IncrementalHoareTripleChecker+Valid, 295 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-09-16 10:14:47,419 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5377 Valid, 1977 Invalid, 418 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [123 Valid, 295 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-09-16 10:14:48,652 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 691883 states. [2022-09-16 10:14:59,893 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 691883 to 346813. [2022-09-16 10:15:00,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 346813 states, 346803 states have (on average 3.2356121486838347) internal successors, (1122120), 346812 states have internal predecessors, (1122120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:15:04,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 346813 states to 346813 states and 1122120 transitions. [2022-09-16 10:15:04,342 INFO L78 Accepts]: Start accepts. Automaton has 346813 states and 1122120 transitions. Word has length 79 [2022-09-16 10:15:04,343 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:15:04,343 INFO L495 AbstractCegarLoop]: Abstraction has 346813 states and 1122120 transitions. [2022-09-16 10:15:04,344 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 35 states, 34 states have (on average 6.205882352941177) internal successors, (211), 35 states have internal predecessors, (211), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:15:04,344 INFO L276 IsEmpty]: Start isEmpty. Operand 346813 states and 1122120 transitions. [2022-09-16 10:15:04,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2022-09-16 10:15:04,522 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:15:04,522 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:15:04,547 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2022-09-16 10:15:04,744 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 10:15:04,745 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting t2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2022-09-16 10:15:04,745 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:15:04,745 INFO L85 PathProgramCache]: Analyzing trace with hash -157597330, now seen corresponding path program 2 times [2022-09-16 10:15:04,745 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:15:04,745 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [916140478] [2022-09-16 10:15:04,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:15:04,745 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:15:04,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:15:04,911 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 38 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:15:04,911 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:15:04,911 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [916140478] [2022-09-16 10:15:04,911 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [916140478] provided 0 perfect and 1 imperfect interpolant sequences [2022-09-16 10:15:04,911 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1381167278] [2022-09-16 10:15:04,912 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-09-16 10:15:04,912 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 10:15:04,912 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-16 10:15:04,931 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) [2022-09-16 10:15:04,991 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2022-09-16 10:15:05,091 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-09-16 10:15:05,091 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-09-16 10:15:05,092 INFO L263 TraceCheckSpWp]: Trace formula consists of 199 conjuncts, 9 conjunts are in the unsatisfiable core [2022-09-16 10:15:05,094 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-16 10:15:05,347 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 38 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:15:05,347 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-09-16 10:15:05,573 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 38 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:15:05,573 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1381167278] provided 0 perfect and 2 imperfect interpolant sequences [2022-09-16 10:15:05,573 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-09-16 10:15:05,573 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 25 [2022-09-16 10:15:05,573 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [654950752] [2022-09-16 10:15:05,573 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-09-16 10:15:05,574 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-09-16 10:15:05,574 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:15:05,574 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-09-16 10:15:05,574 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=198, Invalid=452, Unknown=0, NotChecked=0, Total=650 [2022-09-16 10:15:05,575 INFO L87 Difference]: Start difference. First operand 346813 states and 1122120 transitions. Second operand has 26 states, 25 states have (on average 7.64) internal successors, (191), 26 states have internal predecessors, (191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:15:18,531 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:15:18,533 INFO L93 Difference]: Finished difference Result 1020996 states and 3207794 transitions. [2022-09-16 10:15:18,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-09-16 10:15:18,533 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 25 states have (on average 7.64) internal successors, (191), 26 states have internal predecessors, (191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 81 [2022-09-16 10:15:18,534 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:15:24,673 INFO L225 Difference]: With dead ends: 1020996 [2022-09-16 10:15:24,673 INFO L226 Difference]: Without dead ends: 1020996 [2022-09-16 10:15:24,674 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 202 GetRequests, 145 SyntacticMatches, 0 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1134 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=1158, Invalid=2264, Unknown=0, NotChecked=0, Total=3422 [2022-09-16 10:15:24,675 INFO L413 NwaCegarLoop]: 93 mSDtfsCounter, 6771 mSDsluCounter, 2628 mSDsCounter, 0 mSdLazyCounter, 305 mSolverCounterSat, 171 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6771 SdHoareTripleChecker+Valid, 2704 SdHoareTripleChecker+Invalid, 476 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 171 IncrementalHoareTripleChecker+Valid, 305 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-09-16 10:15:24,675 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6771 Valid, 2704 Invalid, 476 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [171 Valid, 305 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-09-16 10:15:26,932 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1020996 states. [2022-09-16 10:15:50,442 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1020996 to 500026. [2022-09-16 10:15:52,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 500026 states, 500016 states have (on average 3.2596956897379283) internal successors, (1629900), 500025 states have internal predecessors, (1629900), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:15:56,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 500026 states to 500026 states and 1629900 transitions. [2022-09-16 10:15:56,847 INFO L78 Accepts]: Start accepts. Automaton has 500026 states and 1629900 transitions. Word has length 81 [2022-09-16 10:15:56,847 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:15:56,847 INFO L495 AbstractCegarLoop]: Abstraction has 500026 states and 1629900 transitions. [2022-09-16 10:15:56,848 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 25 states have (on average 7.64) internal successors, (191), 26 states have internal predecessors, (191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:15:56,848 INFO L276 IsEmpty]: Start isEmpty. Operand 500026 states and 1629900 transitions. [2022-09-16 10:15:57,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2022-09-16 10:15:57,045 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:15:57,047 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:15:57,069 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2022-09-16 10:15:57,267 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,SelfDestructingSolverStorable20 [2022-09-16 10:15:57,268 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting t2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2022-09-16 10:15:57,269 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:15:57,269 INFO L85 PathProgramCache]: Analyzing trace with hash 1299673357, now seen corresponding path program 3 times [2022-09-16 10:15:57,269 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:15:57,269 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [35424077] [2022-09-16 10:15:57,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:15:57,269 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:15:57,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:15:57,427 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 38 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:15:57,427 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:15:57,428 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [35424077] [2022-09-16 10:15:57,428 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [35424077] provided 0 perfect and 1 imperfect interpolant sequences [2022-09-16 10:15:57,428 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2081742148] [2022-09-16 10:15:57,428 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-09-16 10:15:57,428 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 10:15:57,428 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-16 10:15:57,429 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) [2022-09-16 10:15:57,430 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2022-09-16 10:15:57,544 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2022-09-16 10:15:57,544 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-09-16 10:15:57,545 INFO L263 TraceCheckSpWp]: Trace formula consists of 199 conjuncts, 9 conjunts are in the unsatisfiable core [2022-09-16 10:15:57,566 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-16 10:15:57,869 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 38 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:15:57,869 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-09-16 10:15:58,088 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 38 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:15:58,088 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2081742148] provided 0 perfect and 2 imperfect interpolant sequences [2022-09-16 10:15:58,088 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-09-16 10:15:58,088 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 25 [2022-09-16 10:15:58,089 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [724174372] [2022-09-16 10:15:58,089 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-09-16 10:15:58,089 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-09-16 10:15:58,089 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:15:58,090 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-09-16 10:15:58,090 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=180, Invalid=470, Unknown=0, NotChecked=0, Total=650 [2022-09-16 10:15:58,090 INFO L87 Difference]: Start difference. First operand 500026 states and 1629900 transitions. Second operand has 26 states, 25 states have (on average 7.64) internal successors, (191), 26 states have internal predecessors, (191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)