/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-5.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-53ca081-m [2022-09-16 10:13:31,272 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-09-16 10:13:31,274 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-09-16 10:13:31,317 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-09-16 10:13:31,317 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-09-16 10:13:31,320 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-09-16 10:13:31,323 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-09-16 10:13:31,326 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-09-16 10:13:31,328 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-09-16 10:13:31,332 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-09-16 10:13:31,333 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-09-16 10:13:31,334 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-09-16 10:13:31,334 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-09-16 10:13:31,336 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-09-16 10:13:31,337 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-09-16 10:13:31,340 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-09-16 10:13:31,341 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-09-16 10:13:31,342 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-09-16 10:13:31,343 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-09-16 10:13:31,349 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-09-16 10:13:31,350 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-09-16 10:13:31,351 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-09-16 10:13:31,352 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-09-16 10:13:31,353 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-09-16 10:13:31,360 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-09-16 10:13:31,360 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-09-16 10:13:31,360 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-09-16 10:13:31,362 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-09-16 10:13:31,362 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-09-16 10:13:31,363 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-09-16 10:13:31,363 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-09-16 10:13:31,364 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-09-16 10:13:31,365 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-09-16 10:13:31,366 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-09-16 10:13:31,367 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-09-16 10:13:31,367 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-09-16 10:13:31,368 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-09-16 10:13:31,368 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-09-16 10:13:31,368 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-09-16 10:13:31,369 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-09-16 10:13:31,369 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-09-16 10:13:31,370 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 10:13:31,403 INFO L113 SettingsManager]: Loading preferences was successful [2022-09-16 10:13:31,403 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-09-16 10:13:31,404 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-09-16 10:13:31,404 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-09-16 10:13:31,405 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-09-16 10:13:31,405 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-09-16 10:13:31,405 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-09-16 10:13:31,405 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-09-16 10:13:31,406 INFO L138 SettingsManager]: * Use SBE=true [2022-09-16 10:13:31,406 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-09-16 10:13:31,407 INFO L138 SettingsManager]: * sizeof long=4 [2022-09-16 10:13:31,407 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-09-16 10:13:31,407 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-09-16 10:13:31,407 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-09-16 10:13:31,407 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-09-16 10:13:31,407 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-09-16 10:13:31,407 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-09-16 10:13:31,407 INFO L138 SettingsManager]: * sizeof long double=12 [2022-09-16 10:13:31,408 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-09-16 10:13:31,408 INFO L138 SettingsManager]: * Use constant arrays=true [2022-09-16 10:13:31,408 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-09-16 10:13:31,408 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-09-16 10:13:31,408 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-09-16 10:13:31,409 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-09-16 10:13:31,409 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-09-16 10:13:31,410 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-09-16 10:13:31,410 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-09-16 10:13:31,410 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-09-16 10:13:31,410 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-09-16 10:13:31,410 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-09-16 10:13:31,410 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-09-16 10:13:31,410 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-09-16 10:13:31,411 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-09-16 10:13:31,411 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of error function in SV-COMP mode -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of signed integer overflows -> true [2022-09-16 10:13:31,650 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-09-16 10:13:31,669 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-09-16 10:13:31,671 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-09-16 10:13:31,672 INFO L271 PluginConnector]: Initializing CDTParser... [2022-09-16 10:13:31,672 INFO L275 PluginConnector]: CDTParser initialized [2022-09-16 10:13:31,674 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread/fib_safe-5.i [2022-09-16 10:13:31,722 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a38daaeb0/e5cd84ada7384394b1e97bd54fd310ee/FLAG322d8cac7 [2022-09-16 10:13:32,199 INFO L306 CDTParser]: Found 1 translation units. [2022-09-16 10:13:32,200 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread/fib_safe-5.i [2022-09-16 10:13:32,216 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a38daaeb0/e5cd84ada7384394b1e97bd54fd310ee/FLAG322d8cac7 [2022-09-16 10:13:32,550 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a38daaeb0/e5cd84ada7384394b1e97bd54fd310ee [2022-09-16 10:13:32,552 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-09-16 10:13:32,553 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-09-16 10:13:32,555 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-09-16 10:13:32,555 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-09-16 10:13:32,558 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-09-16 10:13:32,558 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.09 10:13:32" (1/1) ... [2022-09-16 10:13:32,559 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@28107f1b 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 10:13:32,559 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.09 10:13:32" (1/1) ... [2022-09-16 10:13:32,565 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-09-16 10:13:32,624 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-09-16 10:13:32,915 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-5.i[30813,30826] [2022-09-16 10:13:32,916 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-09-16 10:13:32,928 INFO L203 MainTranslator]: Completed pre-run [2022-09-16 10:13:32,972 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-5.i[30813,30826] [2022-09-16 10:13:32,973 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-09-16 10:13:33,002 INFO L208 MainTranslator]: Completed translation [2022-09-16 10:13:33,002 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:13:33 WrapperNode [2022-09-16 10:13:33,002 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-09-16 10:13:33,003 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-09-16 10:13:33,003 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-09-16 10:13:33,003 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-09-16 10:13:33,012 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:13:33" (1/1) ... [2022-09-16 10:13:33,028 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:13:33" (1/1) ... [2022-09-16 10:13:33,056 INFO L138 Inliner]: procedures = 164, calls = 26, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 75 [2022-09-16 10:13:33,056 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-09-16 10:13:33,057 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-09-16 10:13:33,057 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-09-16 10:13:33,057 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-09-16 10:13:33,064 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:13:33" (1/1) ... [2022-09-16 10:13:33,065 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:13:33" (1/1) ... [2022-09-16 10:13:33,081 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:13:33" (1/1) ... [2022-09-16 10:13:33,082 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:13:33" (1/1) ... [2022-09-16 10:13:33,085 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:13:33" (1/1) ... [2022-09-16 10:13:33,089 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:13:33" (1/1) ... [2022-09-16 10:13:33,102 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:13:33" (1/1) ... [2022-09-16 10:13:33,104 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-09-16 10:13:33,109 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-09-16 10:13:33,110 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-09-16 10:13:33,110 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-09-16 10:13:33,111 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:13:33" (1/1) ... [2022-09-16 10:13:33,116 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-09-16 10:13:33,126 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-16 10:13:33,145 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 10:13:33,163 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 10:13:33,183 INFO L130 BoogieDeclarations]: Found specification of procedure t1 [2022-09-16 10:13:33,184 INFO L138 BoogieDeclarations]: Found implementation of procedure t1 [2022-09-16 10:13:33,184 INFO L130 BoogieDeclarations]: Found specification of procedure t2 [2022-09-16 10:13:33,184 INFO L138 BoogieDeclarations]: Found implementation of procedure t2 [2022-09-16 10:13:33,184 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-09-16 10:13:33,184 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-09-16 10:13:33,184 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-09-16 10:13:33,184 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-09-16 10:13:33,184 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-09-16 10:13:33,184 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-09-16 10:13:33,184 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-09-16 10:13:33,184 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-09-16 10:13:33,185 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-09-16 10:13:33,186 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 10:13:33,291 INFO L234 CfgBuilder]: Building ICFG [2022-09-16 10:13:33,292 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-09-16 10:13:33,556 INFO L275 CfgBuilder]: Performing block encoding [2022-09-16 10:13:33,577 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-09-16 10:13:33,577 INFO L299 CfgBuilder]: Removed 3 assume(true) statements. [2022-09-16 10:13:33,580 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.09 10:13:33 BoogieIcfgContainer [2022-09-16 10:13:33,580 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-09-16 10:13:33,581 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-09-16 10:13:33,581 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-09-16 10:13:33,590 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-09-16 10:13:33,590 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.09 10:13:32" (1/3) ... [2022-09-16 10:13:33,591 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d1b415a 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 10:13:33,591 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:13:33" (2/3) ... [2022-09-16 10:13:33,591 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d1b415a 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 10:13:33,591 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 10:13:33,592 INFO L112 eAbstractionObserver]: Analyzing ICFG fib_safe-5.i [2022-09-16 10:13:33,599 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-09-16 10:13:33,608 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-09-16 10:13:33,608 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 12 error locations. [2022-09-16 10:13:33,608 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-09-16 10:13:33,675 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-09-16 10:13:33,710 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 115 places, 115 transitions, 240 flow [2022-09-16 10:13:34,138 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 10:13:34,163 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-09-16 10:13:34,210 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;@45e93f23, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-09-16 10:13:34,210 INFO L358 AbstractCegarLoop]: Starting to check reachability of 22 error locations. [2022-09-16 10:13:34,251 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 10:13:34,258 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2022-09-16 10:13:34,258 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:13:34,258 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 10:13:34,259 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 10:13:34,264 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:13:34,265 INFO L85 PathProgramCache]: Analyzing trace with hash -2090278822, now seen corresponding path program 1 times [2022-09-16 10:13:34,273 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:13:34,274 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1565778411] [2022-09-16 10:13:34,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:13:34,275 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:13:34,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:13:34,554 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 10:13:34,555 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:13:34,555 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1565778411] [2022-09-16 10:13:34,555 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1565778411] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:13:34,556 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:13:34,557 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-09-16 10:13:34,558 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [578118390] [2022-09-16 10:13:34,559 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:13:34,564 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-09-16 10:13:34,565 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:13:34,591 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-09-16 10:13:34,593 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-09-16 10:13:34,621 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 10:13:34,951 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:13:34,952 INFO L93 Difference]: Finished difference Result 14861 states and 44393 transitions. [2022-09-16 10:13:34,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-09-16 10:13:34,955 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 10:13:34,955 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:13:35,109 INFO L225 Difference]: With dead ends: 14861 [2022-09-16 10:13:35,109 INFO L226 Difference]: Without dead ends: 14861 [2022-09-16 10:13:35,110 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 10:13:35,117 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, 0.1s IncrementalHoareTripleChecker+Time [2022-09-16 10:13:35,119 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [174 Valid, 243 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-09-16 10:13:35,174 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14861 states. [2022-09-16 10:13:35,660 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14861 to 11101. [2022-09-16 10:13:35,708 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 10:13:35,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11101 states to 11101 states and 33239 transitions. [2022-09-16 10:13:35,768 INFO L78 Accepts]: Start accepts. Automaton has 11101 states and 33239 transitions. Word has length 36 [2022-09-16 10:13:35,770 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:13:35,770 INFO L495 AbstractCegarLoop]: Abstraction has 11101 states and 33239 transitions. [2022-09-16 10:13:35,771 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 10:13:35,771 INFO L276 IsEmpty]: Start isEmpty. Operand 11101 states and 33239 transitions. [2022-09-16 10:13:35,772 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2022-09-16 10:13:35,772 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:13:35,773 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 10:13:35,773 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-09-16 10:13:35,774 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 10:13:35,774 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:13:35,774 INFO L85 PathProgramCache]: Analyzing trace with hash 1286757501, now seen corresponding path program 1 times [2022-09-16 10:13:35,774 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:13:35,775 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1396946423] [2022-09-16 10:13:35,775 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:13:35,775 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:13:35,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:13:35,880 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 10:13:35,880 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:13:35,880 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1396946423] [2022-09-16 10:13:35,881 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1396946423] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:13:35,881 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:13:35,881 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-09-16 10:13:35,881 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [34647476] [2022-09-16 10:13:35,881 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:13:35,882 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-09-16 10:13:35,882 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:13:35,883 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-09-16 10:13:35,883 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-09-16 10:13:35,883 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 10:13:36,088 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:13:36,088 INFO L93 Difference]: Finished difference Result 15825 states and 47273 transitions. [2022-09-16 10:13:36,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-09-16 10:13:36,089 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 10:13:36,090 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:13:36,360 INFO L225 Difference]: With dead ends: 15825 [2022-09-16 10:13:36,361 INFO L226 Difference]: Without dead ends: 15825 [2022-09-16 10:13:36,361 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 10:13:36,362 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 10:13:36,363 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 10:13:36,401 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15825 states. [2022-09-16 10:13:36,814 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15825 to 13533. [2022-09-16 10:13:36,843 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 10:13:36,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13533 states to 13533 states and 41473 transitions. [2022-09-16 10:13:36,931 INFO L78 Accepts]: Start accepts. Automaton has 13533 states and 41473 transitions. Word has length 38 [2022-09-16 10:13:36,932 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:13:36,934 INFO L495 AbstractCegarLoop]: Abstraction has 13533 states and 41473 transitions. [2022-09-16 10:13:36,939 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 10:13:36,940 INFO L276 IsEmpty]: Start isEmpty. Operand 13533 states and 41473 transitions. [2022-09-16 10:13:36,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2022-09-16 10:13:36,945 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:13:36,945 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 10:13:36,945 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-09-16 10:13:36,946 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 10:13:36,946 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:13:36,946 INFO L85 PathProgramCache]: Analyzing trace with hash -1214232894, now seen corresponding path program 1 times [2022-09-16 10:13:36,946 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:13:36,947 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1323065451] [2022-09-16 10:13:36,947 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:13:36,947 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:13:36,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:13:37,171 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 10:13:37,172 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:13:37,172 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1323065451] [2022-09-16 10:13:37,172 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1323065451] provided 0 perfect and 1 imperfect interpolant sequences [2022-09-16 10:13:37,173 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [832971957] [2022-09-16 10:13:37,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:13:37,173 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 10:13:37,173 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-16 10:13:37,175 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 10:13:37,183 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 10:13:37,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:13:37,273 INFO L263 TraceCheckSpWp]: Trace formula consists of 120 conjuncts, 4 conjunts are in the unsatisfiable core [2022-09-16 10:13:37,278 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-16 10:13:37,455 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 10:13:37,455 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-09-16 10:13:37,513 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 10:13:37,514 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [832971957] provided 0 perfect and 2 imperfect interpolant sequences [2022-09-16 10:13:37,514 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-09-16 10:13:37,514 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 10 [2022-09-16 10:13:37,514 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1937552843] [2022-09-16 10:13:37,515 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-09-16 10:13:37,515 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-09-16 10:13:37,515 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:13:37,516 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-09-16 10:13:37,516 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=69, Unknown=0, NotChecked=0, Total=110 [2022-09-16 10:13:37,516 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 10:13:38,252 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:13:38,252 INFO L93 Difference]: Finished difference Result 53588 states and 158254 transitions. [2022-09-16 10:13:38,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-09-16 10:13:38,253 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 10:13:38,253 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:13:38,805 INFO L225 Difference]: With dead ends: 53588 [2022-09-16 10:13:38,805 INFO L226 Difference]: Without dead ends: 53588 [2022-09-16 10:13:38,806 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 80 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=143, Invalid=237, Unknown=0, NotChecked=0, Total=380 [2022-09-16 10:13:38,809 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 10:13:38,811 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 10:13:39,022 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53588 states. [2022-09-16 10:13:40,191 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53588 to 32695. [2022-09-16 10:13:40,271 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 10:13:40,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32695 states to 32695 states and 103664 transitions. [2022-09-16 10:13:40,488 INFO L78 Accepts]: Start accepts. Automaton has 32695 states and 103664 transitions. Word has length 43 [2022-09-16 10:13:40,489 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:13:40,489 INFO L495 AbstractCegarLoop]: Abstraction has 32695 states and 103664 transitions. [2022-09-16 10:13:40,489 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 10:13:40,489 INFO L276 IsEmpty]: Start isEmpty. Operand 32695 states and 103664 transitions. [2022-09-16 10:13:40,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2022-09-16 10:13:40,491 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:13:40,491 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 10:13:40,521 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 10:13:40,712 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 10:13:40,713 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 10:13:40,714 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:13:40,714 INFO L85 PathProgramCache]: Analyzing trace with hash -1214232893, now seen corresponding path program 1 times [2022-09-16 10:13:40,714 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:13:40,714 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1442498705] [2022-09-16 10:13:40,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:13:40,714 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:13:40,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:13:40,816 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 10:13:40,816 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:13:40,817 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1442498705] [2022-09-16 10:13:40,817 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1442498705] provided 0 perfect and 1 imperfect interpolant sequences [2022-09-16 10:13:40,817 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [366294662] [2022-09-16 10:13:40,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:13:40,820 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 10:13:40,820 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-16 10:13:40,822 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 10:13:40,823 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 10:13:40,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:13:40,893 INFO L263 TraceCheckSpWp]: Trace formula consists of 121 conjuncts, 4 conjunts are in the unsatisfiable core [2022-09-16 10:13:40,896 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-16 10:13:40,993 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 10:13:40,994 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-09-16 10:13:40,994 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [366294662] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:13:40,994 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-09-16 10:13:40,994 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 7 [2022-09-16 10:13:40,994 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1302605197] [2022-09-16 10:13:40,996 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:13:40,996 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-09-16 10:13:40,997 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:13:40,997 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-09-16 10:13:41,000 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-09-16 10:13:41,000 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 10:13:41,436 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:13:41,437 INFO L93 Difference]: Finished difference Result 38458 states and 117887 transitions. [2022-09-16 10:13:41,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-09-16 10:13:41,437 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 10:13:41,438 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:13:41,863 INFO L225 Difference]: With dead ends: 38458 [2022-09-16 10:13:41,863 INFO L226 Difference]: Without dead ends: 38458 [2022-09-16 10:13:41,864 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 10:13:41,867 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, 0.2s IncrementalHoareTripleChecker+Time [2022-09-16 10:13:41,868 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [220 Valid, 272 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-09-16 10:13:41,950 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38458 states. [2022-09-16 10:13:42,745 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38458 to 29149. [2022-09-16 10:13:42,797 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 10:13:42,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29149 states to 29149 states and 89796 transitions. [2022-09-16 10:13:42,900 INFO L78 Accepts]: Start accepts. Automaton has 29149 states and 89796 transitions. Word has length 43 [2022-09-16 10:13:42,901 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:13:42,901 INFO L495 AbstractCegarLoop]: Abstraction has 29149 states and 89796 transitions. [2022-09-16 10:13:42,901 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 10:13:42,901 INFO L276 IsEmpty]: Start isEmpty. Operand 29149 states and 89796 transitions. [2022-09-16 10:13:42,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2022-09-16 10:13:42,902 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:13:42,902 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 10:13:42,921 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-09-16 10:13:43,108 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 10:13:43,109 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 10:13:43,109 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:13:43,110 INFO L85 PathProgramCache]: Analyzing trace with hash -447258493, now seen corresponding path program 1 times [2022-09-16 10:13:43,110 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:13:43,110 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1569569050] [2022-09-16 10:13:43,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:13:43,112 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:13:43,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:13:43,163 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 10:13:43,163 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:13:43,164 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1569569050] [2022-09-16 10:13:43,164 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1569569050] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:13:43,164 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:13:43,164 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-09-16 10:13:43,164 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2064729137] [2022-09-16 10:13:43,164 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:13:43,168 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-09-16 10:13:43,169 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:13:43,169 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-09-16 10:13:43,169 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-09-16 10:13:43,170 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 10:13:43,592 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:13:43,593 INFO L93 Difference]: Finished difference Result 31125 states and 94762 transitions. [2022-09-16 10:13:43,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-09-16 10:13:43,594 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 10:13:43,594 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:13:43,764 INFO L225 Difference]: With dead ends: 31125 [2022-09-16 10:13:43,765 INFO L226 Difference]: Without dead ends: 31125 [2022-09-16 10:13:43,765 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 10:13:43,765 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 10:13:43,766 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 10:13:43,825 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31125 states. [2022-09-16 10:13:44,439 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31125 to 29643. [2022-09-16 10:13:44,482 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 10:13:44,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29643 states to 29643 states and 90810 transitions. [2022-09-16 10:13:44,753 INFO L78 Accepts]: Start accepts. Automaton has 29643 states and 90810 transitions. Word has length 44 [2022-09-16 10:13:44,753 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:13:44,753 INFO L495 AbstractCegarLoop]: Abstraction has 29643 states and 90810 transitions. [2022-09-16 10:13:44,753 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 10:13:44,753 INFO L276 IsEmpty]: Start isEmpty. Operand 29643 states and 90810 transitions. [2022-09-16 10:13:44,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2022-09-16 10:13:44,755 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:13:44,755 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 10:13:44,755 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-09-16 10:13:44,755 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 10:13:44,755 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:13:44,756 INFO L85 PathProgramCache]: Analyzing trace with hash 1353304293, now seen corresponding path program 1 times [2022-09-16 10:13:44,756 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:13:44,756 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [122082208] [2022-09-16 10:13:44,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:13:44,756 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:13:44,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:13:44,808 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 10:13:44,809 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:13:44,809 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [122082208] [2022-09-16 10:13:44,809 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [122082208] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:13:44,809 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:13:44,809 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-09-16 10:13:44,809 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [507161244] [2022-09-16 10:13:44,809 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:13:44,810 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-09-16 10:13:44,810 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:13:44,810 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-09-16 10:13:44,810 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-09-16 10:13:44,811 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 10:13:45,019 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:13:45,019 INFO L93 Difference]: Finished difference Result 28453 states and 86904 transitions. [2022-09-16 10:13:45,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-09-16 10:13:45,020 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 10:13:45,020 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:13:45,098 INFO L225 Difference]: With dead ends: 28453 [2022-09-16 10:13:45,098 INFO L226 Difference]: Without dead ends: 28453 [2022-09-16 10:13:45,099 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 10:13:45,099 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 10:13:45,100 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 10:13:45,148 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28453 states. [2022-09-16 10:13:45,766 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28453 to 28453. [2022-09-16 10:13:45,806 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 10:13:46,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28453 states to 28453 states and 86904 transitions. [2022-09-16 10:13:46,087 INFO L78 Accepts]: Start accepts. Automaton has 28453 states and 86904 transitions. Word has length 45 [2022-09-16 10:13:46,087 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:13:46,087 INFO L495 AbstractCegarLoop]: Abstraction has 28453 states and 86904 transitions. [2022-09-16 10:13:46,087 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 10:13:46,088 INFO L276 IsEmpty]: Start isEmpty. Operand 28453 states and 86904 transitions. [2022-09-16 10:13:46,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2022-09-16 10:13:46,088 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:13:46,089 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 10:13:46,089 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-09-16 10:13:46,089 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 10:13:46,089 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:13:46,090 INFO L85 PathProgramCache]: Analyzing trace with hash 2117796030, now seen corresponding path program 1 times [2022-09-16 10:13:46,090 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:13:46,090 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1957943168] [2022-09-16 10:13:46,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:13:46,090 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:13:46,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:13:46,149 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 10:13:46,149 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:13:46,150 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1957943168] [2022-09-16 10:13:46,150 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1957943168] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:13:46,150 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:13:46,150 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-09-16 10:13:46,150 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [752244181] [2022-09-16 10:13:46,150 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:13:46,151 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-09-16 10:13:46,151 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:13:46,151 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-09-16 10:13:46,151 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-09-16 10:13:46,151 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 10:13:46,445 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:13:46,445 INFO L93 Difference]: Finished difference Result 45435 states and 138916 transitions. [2022-09-16 10:13:46,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-09-16 10:13:46,446 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 10:13:46,446 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:13:46,578 INFO L225 Difference]: With dead ends: 45435 [2022-09-16 10:13:46,578 INFO L226 Difference]: Without dead ends: 45435 [2022-09-16 10:13:46,578 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 10:13:46,579 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 10:13:46,579 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 10:13:46,658 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45435 states. [2022-09-16 10:13:47,509 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45435 to 30688. [2022-09-16 10:13:47,552 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 10:13:47,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30688 states to 30688 states and 94504 transitions. [2022-09-16 10:13:47,654 INFO L78 Accepts]: Start accepts. Automaton has 30688 states and 94504 transitions. Word has length 46 [2022-09-16 10:13:47,655 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:13:47,655 INFO L495 AbstractCegarLoop]: Abstraction has 30688 states and 94504 transitions. [2022-09-16 10:13:47,655 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 10:13:47,655 INFO L276 IsEmpty]: Start isEmpty. Operand 30688 states and 94504 transitions. [2022-09-16 10:13:47,656 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2022-09-16 10:13:47,656 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:13:47,656 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 10:13:47,656 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-09-16 10:13:47,657 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 10:13:47,657 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:13:47,657 INFO L85 PathProgramCache]: Analyzing trace with hash -997239562, now seen corresponding path program 1 times [2022-09-16 10:13:47,657 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:13:47,657 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1734537112] [2022-09-16 10:13:47,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:13:47,658 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:13:47,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:13:47,719 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 10:13:47,719 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:13:47,719 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1734537112] [2022-09-16 10:13:47,719 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1734537112] provided 0 perfect and 1 imperfect interpolant sequences [2022-09-16 10:13:47,719 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1802158125] [2022-09-16 10:13:47,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:13:47,720 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 10:13:47,720 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-16 10:13:47,721 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 10:13:47,723 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 10:13:47,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:13:47,786 INFO L263 TraceCheckSpWp]: Trace formula consists of 127 conjuncts, 5 conjunts are in the unsatisfiable core [2022-09-16 10:13:47,791 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-16 10:13:47,824 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 10:13:47,824 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-09-16 10:13:47,824 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1802158125] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:13:47,824 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-09-16 10:13:47,825 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2022-09-16 10:13:47,825 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [996371398] [2022-09-16 10:13:47,825 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:13:47,826 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-09-16 10:13:47,826 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:13:47,827 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-09-16 10:13:47,827 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-09-16 10:13:47,827 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 10:13:48,301 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:13:48,301 INFO L93 Difference]: Finished difference Result 31824 states and 97044 transitions. [2022-09-16 10:13:48,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-09-16 10:13:48,302 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 10:13:48,302 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:13:48,429 INFO L225 Difference]: With dead ends: 31824 [2022-09-16 10:13:48,429 INFO L226 Difference]: Without dead ends: 31824 [2022-09-16 10:13:48,429 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 10:13:48,430 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, 0.0s IncrementalHoareTripleChecker+Time [2022-09-16 10:13:48,430 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [331 Valid, 773 Invalid, 68 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 64 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-09-16 10:13:48,491 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31824 states. [2022-09-16 10:13:49,164 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31824 to 25480. [2022-09-16 10:13:49,197 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 10:13:49,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25480 states to 25480 states and 77962 transitions. [2022-09-16 10:13:49,267 INFO L78 Accepts]: Start accepts. Automaton has 25480 states and 77962 transitions. Word has length 46 [2022-09-16 10:13:49,268 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:13:49,268 INFO L495 AbstractCegarLoop]: Abstraction has 25480 states and 77962 transitions. [2022-09-16 10:13:49,268 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 10:13:49,268 INFO L276 IsEmpty]: Start isEmpty. Operand 25480 states and 77962 transitions. [2022-09-16 10:13:49,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2022-09-16 10:13:49,271 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:13:49,271 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 10:13:49,288 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 10:13:49,474 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 10:13:49,475 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 10:13:49,475 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:13:49,476 INFO L85 PathProgramCache]: Analyzing trace with hash 966995920, now seen corresponding path program 1 times [2022-09-16 10:13:49,476 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:13:49,476 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [241731472] [2022-09-16 10:13:49,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:13:49,476 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:13:49,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:13:49,510 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 10:13:49,511 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:13:49,511 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [241731472] [2022-09-16 10:13:49,511 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [241731472] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:13:49,511 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:13:49,511 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-09-16 10:13:49,512 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1038886616] [2022-09-16 10:13:49,512 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:13:49,512 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-09-16 10:13:49,512 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:13:49,513 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-09-16 10:13:49,513 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-09-16 10:13:49,513 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 10:13:49,679 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:13:49,680 INFO L93 Difference]: Finished difference Result 24742 states and 75730 transitions. [2022-09-16 10:13:49,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-09-16 10:13:49,680 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 10:13:49,681 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:13:49,744 INFO L225 Difference]: With dead ends: 24742 [2022-09-16 10:13:49,745 INFO L226 Difference]: Without dead ends: 24742 [2022-09-16 10:13:49,745 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 10:13:49,745 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 10:13:49,746 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 10:13:49,788 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24742 states. [2022-09-16 10:13:50,329 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24742 to 24742. [2022-09-16 10:13:50,363 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 10:13:50,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24742 states to 24742 states and 75730 transitions. [2022-09-16 10:13:50,437 INFO L78 Accepts]: Start accepts. Automaton has 24742 states and 75730 transitions. Word has length 51 [2022-09-16 10:13:50,438 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:13:50,438 INFO L495 AbstractCegarLoop]: Abstraction has 24742 states and 75730 transitions. [2022-09-16 10:13:50,438 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 10:13:50,438 INFO L276 IsEmpty]: Start isEmpty. Operand 24742 states and 75730 transitions. [2022-09-16 10:13:50,440 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2022-09-16 10:13:50,440 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:13:50,440 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 10:13:50,441 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-09-16 10:13:50,441 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 10:13:50,441 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:13:50,441 INFO L85 PathProgramCache]: Analyzing trace with hash -87897220, now seen corresponding path program 1 times [2022-09-16 10:13:50,442 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:13:50,442 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [581294126] [2022-09-16 10:13:50,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:13:50,442 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:13:50,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:13:50,482 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 10:13:50,483 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:13:50,483 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [581294126] [2022-09-16 10:13:50,483 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [581294126] provided 0 perfect and 1 imperfect interpolant sequences [2022-09-16 10:13:50,483 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1632217858] [2022-09-16 10:13:50,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:13:50,484 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 10:13:50,484 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-16 10:13:50,485 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 10:13:50,486 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 10:13:50,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:13:50,564 INFO L263 TraceCheckSpWp]: Trace formula consists of 147 conjuncts, 4 conjunts are in the unsatisfiable core [2022-09-16 10:13:50,567 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-16 10:13:50,605 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 10:13:50,605 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-09-16 10:13:50,605 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1632217858] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:13:50,605 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-09-16 10:13:50,605 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 8 [2022-09-16 10:13:50,606 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [602373662] [2022-09-16 10:13:50,606 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:13:50,606 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-09-16 10:13:50,607 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:13:50,607 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-09-16 10:13:50,607 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2022-09-16 10:13:50,607 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 10:13:51,026 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:13:51,027 INFO L93 Difference]: Finished difference Result 24004 states and 73498 transitions. [2022-09-16 10:13:51,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-09-16 10:13:51,028 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 10:13:51,028 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:13:51,094 INFO L225 Difference]: With dead ends: 24004 [2022-09-16 10:13:51,095 INFO L226 Difference]: Without dead ends: 24004 [2022-09-16 10:13:51,095 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 10:13:51,095 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 10:13:51,096 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 10:13:51,126 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24004 states. [2022-09-16 10:13:51,410 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24004 to 21278. [2022-09-16 10:13:51,439 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 10:13:51,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21278 states to 21278 states and 64804 transitions. [2022-09-16 10:13:51,696 INFO L78 Accepts]: Start accepts. Automaton has 21278 states and 64804 transitions. Word has length 52 [2022-09-16 10:13:51,696 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:13:51,696 INFO L495 AbstractCegarLoop]: Abstraction has 21278 states and 64804 transitions. [2022-09-16 10:13:51,696 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 10:13:51,697 INFO L276 IsEmpty]: Start isEmpty. Operand 21278 states and 64804 transitions. [2022-09-16 10:13:51,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2022-09-16 10:13:51,700 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:13:51,700 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 10:13:51,725 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 10:13:51,915 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 10:13:51,916 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 10:13:51,916 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:13:51,916 INFO L85 PathProgramCache]: Analyzing trace with hash -1641089002, now seen corresponding path program 1 times [2022-09-16 10:13:51,916 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:13:51,916 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [149550789] [2022-09-16 10:13:51,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:13:51,917 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:13:51,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:13:51,967 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 10:13:51,967 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:13:51,967 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [149550789] [2022-09-16 10:13:51,967 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [149550789] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:13:51,968 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:13:51,968 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-09-16 10:13:51,968 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1021832994] [2022-09-16 10:13:51,968 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:13:51,968 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-09-16 10:13:51,968 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:13:51,969 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-09-16 10:13:51,969 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-09-16 10:13:51,969 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 10:13:52,134 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:13:52,134 INFO L93 Difference]: Finished difference Result 25454 states and 76979 transitions. [2022-09-16 10:13:52,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-09-16 10:13:52,135 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 10:13:52,135 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:13:52,198 INFO L225 Difference]: With dead ends: 25454 [2022-09-16 10:13:52,198 INFO L226 Difference]: Without dead ends: 25454 [2022-09-16 10:13:52,198 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 10:13:52,199 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 10:13:52,199 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 10:13:52,234 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25454 states. [2022-09-16 10:13:52,804 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25454 to 24410. [2022-09-16 10:13:52,835 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 10:13:52,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24410 states to 24410 states and 73807 transitions. [2022-09-16 10:13:52,894 INFO L78 Accepts]: Start accepts. Automaton has 24410 states and 73807 transitions. Word has length 52 [2022-09-16 10:13:52,894 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:13:52,894 INFO L495 AbstractCegarLoop]: Abstraction has 24410 states and 73807 transitions. [2022-09-16 10:13:52,895 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 10:13:52,895 INFO L276 IsEmpty]: Start isEmpty. Operand 24410 states and 73807 transitions. [2022-09-16 10:13:52,901 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2022-09-16 10:13:52,901 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:13:52,901 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 10:13:52,901 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-09-16 10:13:52,902 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 10:13:52,902 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:13:52,902 INFO L85 PathProgramCache]: Analyzing trace with hash 1948310297, now seen corresponding path program 1 times [2022-09-16 10:13:52,902 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:13:52,902 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1672833390] [2022-09-16 10:13:52,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:13:52,903 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:13:52,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:13:52,982 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 10:13:52,982 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:13:52,982 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1672833390] [2022-09-16 10:13:52,983 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1672833390] provided 0 perfect and 1 imperfect interpolant sequences [2022-09-16 10:13:52,983 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [895866278] [2022-09-16 10:13:52,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:13:52,983 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 10:13:52,983 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-16 10:13:52,984 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 10:13:52,986 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 10:13:53,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:13:53,045 INFO L263 TraceCheckSpWp]: Trace formula consists of 145 conjuncts, 6 conjunts are in the unsatisfiable core [2022-09-16 10:13:53,047 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-16 10:13:53,206 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 10:13:53,206 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-09-16 10:13:53,324 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 10:13:53,324 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [895866278] provided 0 perfect and 2 imperfect interpolant sequences [2022-09-16 10:13:53,324 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-09-16 10:13:53,324 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 16 [2022-09-16 10:13:53,325 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [698109663] [2022-09-16 10:13:53,325 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-09-16 10:13:53,325 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-09-16 10:13:53,325 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:13:53,326 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-09-16 10:13:53,326 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=206, Unknown=0, NotChecked=0, Total=272 [2022-09-16 10:13:53,326 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 10:13:53,780 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:13:53,780 INFO L93 Difference]: Finished difference Result 52304 states and 158483 transitions. [2022-09-16 10:13:53,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-09-16 10:13:53,780 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 10:13:53,781 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:13:54,215 INFO L225 Difference]: With dead ends: 52304 [2022-09-16 10:13:54,215 INFO L226 Difference]: Without dead ends: 52304 [2022-09-16 10:13:54,215 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 124 GetRequests, 103 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 104 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=144, Invalid=362, Unknown=0, NotChecked=0, Total=506 [2022-09-16 10:13:54,216 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 10:13:54,217 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 10:13:54,277 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52304 states. [2022-09-16 10:13:54,965 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52304 to 32240. [2022-09-16 10:13:55,010 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 10:13:55,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32240 states to 32240 states and 100189 transitions. [2022-09-16 10:13:55,102 INFO L78 Accepts]: Start accepts. Automaton has 32240 states and 100189 transitions. Word has length 57 [2022-09-16 10:13:55,102 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:13:55,102 INFO L495 AbstractCegarLoop]: Abstraction has 32240 states and 100189 transitions. [2022-09-16 10:13:55,102 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 10:13:55,102 INFO L276 IsEmpty]: Start isEmpty. Operand 32240 states and 100189 transitions. [2022-09-16 10:13:55,110 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2022-09-16 10:13:55,110 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:13:55,110 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 10:13:55,128 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 10:13:55,319 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 10:13:55,320 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 10:13:55,320 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:13:55,320 INFO L85 PathProgramCache]: Analyzing trace with hash 268077310, now seen corresponding path program 1 times [2022-09-16 10:13:55,320 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:13:55,320 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1765320472] [2022-09-16 10:13:55,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:13:55,321 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:13:55,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:13:55,384 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 10:13:55,385 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:13:55,385 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1765320472] [2022-09-16 10:13:55,385 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1765320472] provided 0 perfect and 1 imperfect interpolant sequences [2022-09-16 10:13:55,385 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1853656568] [2022-09-16 10:13:55,385 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:13:55,385 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 10:13:55,385 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-16 10:13:55,392 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 10:13:55,394 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 10:13:55,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:13:55,458 INFO L263 TraceCheckSpWp]: Trace formula consists of 146 conjuncts, 6 conjunts are in the unsatisfiable core [2022-09-16 10:13:55,460 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-16 10:13:55,605 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 10:13:55,605 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-09-16 10:13:55,605 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1853656568] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:13:55,606 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-09-16 10:13:55,606 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [6] total 11 [2022-09-16 10:13:55,606 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [918249032] [2022-09-16 10:13:55,606 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:13:55,606 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-09-16 10:13:55,606 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:13:55,607 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-09-16 10:13:55,607 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2022-09-16 10:13:55,607 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 10:13:55,810 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:13:55,810 INFO L93 Difference]: Finished difference Result 31718 states and 98081 transitions. [2022-09-16 10:13:55,811 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-09-16 10:13:55,811 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 10:13:55,811 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:13:56,126 INFO L225 Difference]: With dead ends: 31718 [2022-09-16 10:13:56,126 INFO L226 Difference]: Without dead ends: 31718 [2022-09-16 10:13:56,127 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 10:13:56,127 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 10:13:56,128 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 10:13:56,178 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31718 states. [2022-09-16 10:13:56,689 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31718 to 31718. [2022-09-16 10:13:56,737 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 10:13:57,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31718 states to 31718 states and 98081 transitions. [2022-09-16 10:13:57,075 INFO L78 Accepts]: Start accepts. Automaton has 31718 states and 98081 transitions. Word has length 58 [2022-09-16 10:13:57,075 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:13:57,076 INFO L495 AbstractCegarLoop]: Abstraction has 31718 states and 98081 transitions. [2022-09-16 10:13:57,076 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 10:13:57,076 INFO L276 IsEmpty]: Start isEmpty. Operand 31718 states and 98081 transitions. [2022-09-16 10:13:57,084 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2022-09-16 10:13:57,084 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:13:57,085 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 10:13:57,111 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 10:13:57,307 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 10:13:57,308 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 10:13:57,308 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:13:57,308 INFO L85 PathProgramCache]: Analyzing trace with hash -1976694235, now seen corresponding path program 1 times [2022-09-16 10:13:57,308 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:13:57,308 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1421314015] [2022-09-16 10:13:57,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:13:57,309 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:13:57,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:13:57,394 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 10:13:57,394 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:13:57,395 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1421314015] [2022-09-16 10:13:57,395 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1421314015] provided 0 perfect and 1 imperfect interpolant sequences [2022-09-16 10:13:57,395 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1435987242] [2022-09-16 10:13:57,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:13:57,395 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 10:13:57,395 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-16 10:13:57,396 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 10:13:57,398 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 10:13:57,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:13:57,460 INFO L263 TraceCheckSpWp]: Trace formula consists of 163 conjuncts, 6 conjunts are in the unsatisfiable core [2022-09-16 10:13:57,462 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-16 10:13:57,587 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 10:13:57,587 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-09-16 10:13:57,680 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 10:13:57,680 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1435987242] provided 0 perfect and 2 imperfect interpolant sequences [2022-09-16 10:13:57,680 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-09-16 10:13:57,680 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 16 [2022-09-16 10:13:57,680 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2073762139] [2022-09-16 10:13:57,680 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-09-16 10:13:57,681 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-09-16 10:13:57,681 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:13:57,681 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-09-16 10:13:57,681 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=102, Invalid=170, Unknown=0, NotChecked=0, Total=272 [2022-09-16 10:13:57,682 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 10:13:58,641 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:13:58,642 INFO L93 Difference]: Finished difference Result 84481 states and 259689 transitions. [2022-09-16 10:13:58,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-09-16 10:13:58,642 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 10:13:58,642 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:13:58,942 INFO L225 Difference]: With dead ends: 84481 [2022-09-16 10:13:58,942 INFO L226 Difference]: Without dead ends: 84481 [2022-09-16 10:13:58,943 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 10:13:58,944 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 10:13:58,944 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 10:13:59,078 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84481 states. [2022-09-16 10:14:00,428 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84481 to 51980. [2022-09-16 10:14:00,503 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 10:14:00,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51980 states to 51980 states and 163055 transitions. [2022-09-16 10:14:00,677 INFO L78 Accepts]: Start accepts. Automaton has 51980 states and 163055 transitions. Word has length 60 [2022-09-16 10:14:00,677 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:14:00,677 INFO L495 AbstractCegarLoop]: Abstraction has 51980 states and 163055 transitions. [2022-09-16 10:14:00,677 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 10:14:00,677 INFO L276 IsEmpty]: Start isEmpty. Operand 51980 states and 163055 transitions. [2022-09-16 10:14:00,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2022-09-16 10:14:00,687 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:14:00,687 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 10:14:00,703 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 10:14:00,888 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 10:14:00,888 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 10:14:00,889 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:14:00,889 INFO L85 PathProgramCache]: Analyzing trace with hash 747928068, now seen corresponding path program 1 times [2022-09-16 10:14:00,889 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:14:00,889 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1171351395] [2022-09-16 10:14:00,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:14:00,889 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:14:00,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:14:00,975 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 10:14:00,975 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:14:00,975 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1171351395] [2022-09-16 10:14:00,975 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1171351395] provided 0 perfect and 1 imperfect interpolant sequences [2022-09-16 10:14:00,976 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1991587241] [2022-09-16 10:14:00,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:14:00,976 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 10:14:00,976 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-16 10:14:00,977 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 10:14:00,979 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 10:14:01,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:14:01,046 INFO L263 TraceCheckSpWp]: Trace formula consists of 163 conjuncts, 6 conjunts are in the unsatisfiable core [2022-09-16 10:14:01,051 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-16 10:14:01,186 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 10:14:01,186 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-09-16 10:14:01,291 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 10:14:01,292 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1991587241] provided 0 perfect and 2 imperfect interpolant sequences [2022-09-16 10:14:01,292 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-09-16 10:14:01,292 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 16 [2022-09-16 10:14:01,292 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1098091531] [2022-09-16 10:14:01,292 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-09-16 10:14:01,293 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-09-16 10:14:01,293 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:14:01,293 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-09-16 10:14:01,293 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=89, Invalid=183, Unknown=0, NotChecked=0, Total=272 [2022-09-16 10:14:01,294 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 10:14:03,194 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:14:03,195 INFO L93 Difference]: Finished difference Result 147253 states and 454556 transitions. [2022-09-16 10:14:03,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-09-16 10:14:03,195 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 10:14:03,196 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:14:03,894 INFO L225 Difference]: With dead ends: 147253 [2022-09-16 10:14:03,894 INFO L226 Difference]: Without dead ends: 147253 [2022-09-16 10:14:03,894 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 10:14:03,895 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 10:14:03,895 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 10:14:04,128 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 147253 states. [2022-09-16 10:14:06,556 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 147253 to 78647. [2022-09-16 10:14:06,698 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 10:14:06,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78647 states to 78647 states and 248584 transitions. [2022-09-16 10:14:06,981 INFO L78 Accepts]: Start accepts. Automaton has 78647 states and 248584 transitions. Word has length 60 [2022-09-16 10:14:06,981 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:14:06,982 INFO L495 AbstractCegarLoop]: Abstraction has 78647 states and 248584 transitions. [2022-09-16 10:14:06,982 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 10:14:06,982 INFO L276 IsEmpty]: Start isEmpty. Operand 78647 states and 248584 transitions. [2022-09-16 10:14:06,994 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-09-16 10:14:06,994 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:14:06,994 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 10:14:07,013 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 10:14:07,197 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 10:14:07,197 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 10:14:07,198 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:14:07,198 INFO L85 PathProgramCache]: Analyzing trace with hash -1331666383, now seen corresponding path program 1 times [2022-09-16 10:14:07,198 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:14:07,198 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [890817756] [2022-09-16 10:14:07,198 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:14:07,198 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:14:07,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:14:07,269 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 10:14:07,270 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:14:07,270 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [890817756] [2022-09-16 10:14:07,270 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [890817756] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:14:07,270 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:14:07,270 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-09-16 10:14:07,270 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [889434566] [2022-09-16 10:14:07,270 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:14:07,271 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-09-16 10:14:07,271 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:14:07,271 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-09-16 10:14:07,271 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-09-16 10:14:07,272 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 10:14:08,180 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:14:08,180 INFO L93 Difference]: Finished difference Result 77354 states and 243278 transitions. [2022-09-16 10:14:08,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-09-16 10:14:08,180 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 10:14:08,181 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:14:08,419 INFO L225 Difference]: With dead ends: 77354 [2022-09-16 10:14:08,420 INFO L226 Difference]: Without dead ends: 77354 [2022-09-16 10:14:08,420 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 10:14:08,420 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 10:14:08,421 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 10:14:08,553 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77354 states. [2022-09-16 10:14:10,208 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77354 to 77354. [2022-09-16 10:14:10,341 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 10:14:11,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77354 states to 77354 states and 243278 transitions. [2022-09-16 10:14:11,001 INFO L78 Accepts]: Start accepts. Automaton has 77354 states and 243278 transitions. Word has length 63 [2022-09-16 10:14:11,001 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:14:11,002 INFO L495 AbstractCegarLoop]: Abstraction has 77354 states and 243278 transitions. [2022-09-16 10:14:11,002 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 10:14:11,002 INFO L276 IsEmpty]: Start isEmpty. Operand 77354 states and 243278 transitions. [2022-09-16 10:14:11,017 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-09-16 10:14:11,017 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:14:11,017 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 10:14:11,018 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-09-16 10:14:11,018 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 10:14:11,018 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:14:11,018 INFO L85 PathProgramCache]: Analyzing trace with hash 1668015338, now seen corresponding path program 1 times [2022-09-16 10:14:11,018 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:14:11,019 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1455112057] [2022-09-16 10:14:11,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:14:11,019 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:14:11,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:14:11,082 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 10:14:11,082 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:14:11,082 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1455112057] [2022-09-16 10:14:11,082 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1455112057] provided 0 perfect and 1 imperfect interpolant sequences [2022-09-16 10:14:11,083 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [213471819] [2022-09-16 10:14:11,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:14:11,083 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 10:14:11,083 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-16 10:14:11,084 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 10:14:11,086 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 10:14:11,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:14:11,150 INFO L263 TraceCheckSpWp]: Trace formula consists of 156 conjuncts, 4 conjunts are in the unsatisfiable core [2022-09-16 10:14:11,151 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-16 10:14:11,184 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 10:14:11,184 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-09-16 10:14:11,184 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [213471819] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:14:11,185 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-09-16 10:14:11,185 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 8 [2022-09-16 10:14:11,186 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [474898633] [2022-09-16 10:14:11,186 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:14:11,186 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-09-16 10:14:11,186 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:14:11,187 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-09-16 10:14:11,187 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2022-09-16 10:14:11,187 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 10:14:11,735 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:14:11,735 INFO L93 Difference]: Finished difference Result 76061 states and 237972 transitions. [2022-09-16 10:14:11,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-09-16 10:14:11,736 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 10:14:11,736 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:14:12,520 INFO L225 Difference]: With dead ends: 76061 [2022-09-16 10:14:12,521 INFO L226 Difference]: Without dead ends: 76061 [2022-09-16 10:14:12,521 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 10:14:12,522 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 10:14:12,522 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 10:14:12,631 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76061 states. [2022-09-16 10:14:14,155 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76061 to 76061. [2022-09-16 10:14:14,281 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 10:14:14,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76061 states to 76061 states and 237972 transitions. [2022-09-16 10:14:14,579 INFO L78 Accepts]: Start accepts. Automaton has 76061 states and 237972 transitions. Word has length 64 [2022-09-16 10:14:14,579 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:14:14,580 INFO L495 AbstractCegarLoop]: Abstraction has 76061 states and 237972 transitions. [2022-09-16 10:14:14,580 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 10:14:14,580 INFO L276 IsEmpty]: Start isEmpty. Operand 76061 states and 237972 transitions. [2022-09-16 10:14:14,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-09-16 10:14:14,599 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:14:14,599 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 10:14:14,616 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 10:14:14,800 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 10:14:14,800 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 10:14:14,801 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:14:14,801 INFO L85 PathProgramCache]: Analyzing trace with hash -1689933468, now seen corresponding path program 1 times [2022-09-16 10:14:14,801 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:14:14,801 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1057709036] [2022-09-16 10:14:14,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:14:14,801 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:14:14,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:14:14,878 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 10:14:14,878 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:14:14,878 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1057709036] [2022-09-16 10:14:14,878 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1057709036] provided 0 perfect and 1 imperfect interpolant sequences [2022-09-16 10:14:14,879 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1907581421] [2022-09-16 10:14:14,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:14:14,879 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 10:14:14,879 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-16 10:14:14,880 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 10:14:14,882 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 10:14:14,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:14:14,950 INFO L263 TraceCheckSpWp]: Trace formula consists of 175 conjuncts, 7 conjunts are in the unsatisfiable core [2022-09-16 10:14:14,955 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-16 10:14:15,096 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 10:14:15,097 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-09-16 10:14:15,240 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 10:14:15,240 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1907581421] provided 0 perfect and 2 imperfect interpolant sequences [2022-09-16 10:14:15,240 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-09-16 10:14:15,241 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 19 [2022-09-16 10:14:15,241 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [128364272] [2022-09-16 10:14:15,241 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-09-16 10:14:15,241 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-09-16 10:14:15,241 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:14:15,242 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-09-16 10:14:15,242 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=116, Invalid=264, Unknown=0, NotChecked=0, Total=380 [2022-09-16 10:14:15,242 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 10:14:18,161 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:14:18,161 INFO L93 Difference]: Finished difference Result 267638 states and 818031 transitions. [2022-09-16 10:14:18,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2022-09-16 10:14:18,162 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 10:14:18,162 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:14:19,737 INFO L225 Difference]: With dead ends: 267638 [2022-09-16 10:14:19,737 INFO L226 Difference]: Without dead ends: 267638 [2022-09-16 10:14:19,738 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 10:14:19,738 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 10:14:19,738 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 10:14:20,146 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 267638 states. [2022-09-16 10:14:24,277 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 267638 to 134279. [2022-09-16 10:14:24,550 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 10:14:26,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134279 states to 134279 states and 427753 transitions. [2022-09-16 10:14:26,136 INFO L78 Accepts]: Start accepts. Automaton has 134279 states and 427753 transitions. Word has length 67 [2022-09-16 10:14:26,136 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:14:26,137 INFO L495 AbstractCegarLoop]: Abstraction has 134279 states and 427753 transitions. [2022-09-16 10:14:26,137 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 10:14:26,137 INFO L276 IsEmpty]: Start isEmpty. Operand 134279 states and 427753 transitions. [2022-09-16 10:14:26,240 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2022-09-16 10:14:26,240 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:14:26,240 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 10:14:26,264 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 10:14:26,455 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 10:14:26,456 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 10:14:26,456 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:14:26,456 INFO L85 PathProgramCache]: Analyzing trace with hash -1762553510, now seen corresponding path program 2 times [2022-09-16 10:14:26,456 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:14:26,456 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1827239239] [2022-09-16 10:14:26,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:14:26,457 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:14:26,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:14:26,623 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 10:14:26,623 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:14:26,624 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1827239239] [2022-09-16 10:14:26,624 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1827239239] provided 0 perfect and 1 imperfect interpolant sequences [2022-09-16 10:14:26,624 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1537754325] [2022-09-16 10:14:26,624 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-09-16 10:14:26,624 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 10:14:26,624 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-16 10:14:26,643 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 10:14:26,669 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 10:14:26,754 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-09-16 10:14:26,755 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-09-16 10:14:26,757 INFO L263 TraceCheckSpWp]: Trace formula consists of 180 conjuncts, 12 conjunts are in the unsatisfiable core [2022-09-16 10:14:26,758 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-16 10:14:26,939 INFO L134 CoverageAnalysis]: Checked inductivity of 117 backedges. 116 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-09-16 10:14:26,940 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-09-16 10:14:26,945 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1537754325] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:14:26,946 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-09-16 10:14:26,946 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [9] total 21 [2022-09-16 10:14:26,946 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [755238198] [2022-09-16 10:14:26,946 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:14:26,948 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-09-16 10:14:26,948 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:14:26,948 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-09-16 10:14:26,949 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=334, Unknown=0, NotChecked=0, Total=420 [2022-09-16 10:14:26,949 INFO L87 Difference]: Start difference. First operand 134279 states and 427753 transitions. Second operand has 13 states, 13 states have (on average 6.0) internal successors, (78), 13 states have internal predecessors, (78), 0 states have call successors, (0), 0 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 10:14:29,783 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:14:29,783 INFO L93 Difference]: Finished difference Result 260242 states and 834506 transitions. [2022-09-16 10:14:29,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-09-16 10:14:29,784 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 6.0) internal successors, (78), 13 states have internal predecessors, (78), 0 states have call successors, (0), 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 10:14:29,784 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:14:31,550 INFO L225 Difference]: With dead ends: 260242 [2022-09-16 10:14:31,551 INFO L226 Difference]: Without dead ends: 256570 [2022-09-16 10:14:31,551 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 96 GetRequests, 67 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 141 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=216, Invalid=714, Unknown=0, NotChecked=0, Total=930 [2022-09-16 10:14:31,551 INFO L413 NwaCegarLoop]: 661 mSDtfsCounter, 918 mSDsluCounter, 1979 mSDsCounter, 0 mSdLazyCounter, 261 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 918 SdHoareTripleChecker+Valid, 2549 SdHoareTripleChecker+Invalid, 270 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 261 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-09-16 10:14:31,552 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [918 Valid, 2549 Invalid, 270 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 261 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-09-16 10:14:31,903 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 256570 states. [2022-09-16 10:14:38,097 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 256570 to 247817. [2022-09-16 10:14:38,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 247817 states, 247807 states have (on average 3.2258773965222938) internal successors, (799395), 247816 states have internal predecessors, (799395), 0 states have call successors, (0), 0 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 10:14:40,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 247817 states to 247817 states and 799395 transitions. [2022-09-16 10:14:40,399 INFO L78 Accepts]: Start accepts. Automaton has 247817 states and 799395 transitions. Word has length 78 [2022-09-16 10:14:40,400 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:14:40,400 INFO L495 AbstractCegarLoop]: Abstraction has 247817 states and 799395 transitions. [2022-09-16 10:14:40,400 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 6.0) internal successors, (78), 13 states have internal predecessors, (78), 0 states have call successors, (0), 0 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 10:14:40,400 INFO L276 IsEmpty]: Start isEmpty. Operand 247817 states and 799395 transitions. [2022-09-16 10:14:40,497 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2022-09-16 10:14:40,498 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:14:40,498 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 10:14:40,517 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 10:14:40,706 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 10:14:40,707 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 10:14:40,707 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:14:40,707 INFO L85 PathProgramCache]: Analyzing trace with hash 945577465, now seen corresponding path program 2 times [2022-09-16 10:14:40,707 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:14:40,707 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [695495658] [2022-09-16 10:14:40,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:14:40,708 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:14:40,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:14:40,847 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 10:14:40,848 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:14:40,848 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [695495658] [2022-09-16 10:14:40,848 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [695495658] provided 0 perfect and 1 imperfect interpolant sequences [2022-09-16 10:14:40,848 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [41656601] [2022-09-16 10:14:40,848 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-09-16 10:14:40,848 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 10:14:40,848 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-16 10:14:40,849 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 10:14:40,851 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 10:14:40,914 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-09-16 10:14:40,915 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-09-16 10:14:40,916 INFO L263 TraceCheckSpWp]: Trace formula consists of 177 conjuncts, 12 conjunts are in the unsatisfiable core [2022-09-16 10:14:40,917 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-16 10:14:41,181 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 10:14:41,181 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-09-16 10:14:41,397 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 10:14:41,398 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [41656601] provided 0 perfect and 2 imperfect interpolant sequences [2022-09-16 10:14:41,398 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-09-16 10:14:41,398 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 34 [2022-09-16 10:14:41,398 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [433368502] [2022-09-16 10:14:41,398 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-09-16 10:14:41,399 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 35 states [2022-09-16 10:14:41,399 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:14:41,399 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2022-09-16 10:14:41,400 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=193, Invalid=997, Unknown=0, NotChecked=0, Total=1190 [2022-09-16 10:14:41,400 INFO L87 Difference]: Start difference. First operand 247817 states and 799395 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 10:14:51,165 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:14:51,166 INFO L93 Difference]: Finished difference Result 859797 states and 2734863 transitions. [2022-09-16 10:14:51,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-09-16 10:14:51,166 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 10:14:51,167 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:14:56,983 INFO L225 Difference]: With dead ends: 859797 [2022-09-16 10:14:56,983 INFO L226 Difference]: Without dead ends: 859797 [2022-09-16 10:14:56,984 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 10:14:56,984 INFO L413 NwaCegarLoop]: 114 mSDtfsCounter, 4663 mSDsluCounter, 2049 mSDsCounter, 0 mSdLazyCounter, 310 mSolverCounterSat, 101 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4663 SdHoareTripleChecker+Valid, 2069 SdHoareTripleChecker+Invalid, 411 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 101 IncrementalHoareTripleChecker+Valid, 310 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-09-16 10:14:56,984 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4663 Valid, 2069 Invalid, 411 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [101 Valid, 310 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-09-16 10:14:58,482 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 859797 states. [2022-09-16 10:15:18,213 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 859797 to 434245. [2022-09-16 10:15:19,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 434245 states, 434235 states have (on average 3.2557647356845947) internal successors, (1413767), 434244 states have internal predecessors, (1413767), 0 states have call successors, (0), 0 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 10:15:25,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 434245 states to 434245 states and 1413767 transitions. [2022-09-16 10:15:25,182 INFO L78 Accepts]: Start accepts. Automaton has 434245 states and 1413767 transitions. Word has length 79 [2022-09-16 10:15:25,183 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:15:25,183 INFO L495 AbstractCegarLoop]: Abstraction has 434245 states and 1413767 transitions. [2022-09-16 10:15:25,183 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 10:15:25,183 INFO L276 IsEmpty]: Start isEmpty. Operand 434245 states and 1413767 transitions. [2022-09-16 10:15:25,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2022-09-16 10:15:25,460 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:15:25,460 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 10:15:25,499 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 10:15:25,695 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 10:15:25,696 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 10:15:25,696 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:15:25,696 INFO L85 PathProgramCache]: Analyzing trace with hash -157597330, now seen corresponding path program 2 times [2022-09-16 10:15:25,696 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:15:25,697 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1808372703] [2022-09-16 10:15:25,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:15:25,697 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:15:25,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:15:25,839 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 10:15:25,840 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:15:25,840 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1808372703] [2022-09-16 10:15:25,840 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1808372703] provided 0 perfect and 1 imperfect interpolant sequences [2022-09-16 10:15:25,840 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1474578637] [2022-09-16 10:15:25,840 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-09-16 10:15:25,840 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 10:15:25,840 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-16 10:15:25,841 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 10:15:25,843 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 10:15:25,957 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-09-16 10:15:25,958 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-09-16 10:15:25,959 INFO L263 TraceCheckSpWp]: Trace formula consists of 199 conjuncts, 9 conjunts are in the unsatisfiable core [2022-09-16 10:15:25,960 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-16 10:15:26,215 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 10:15:26,215 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-09-16 10:15:26,416 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 10:15:26,416 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1474578637] provided 0 perfect and 2 imperfect interpolant sequences [2022-09-16 10:15:26,416 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-09-16 10:15:26,416 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 25 [2022-09-16 10:15:26,417 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2029781217] [2022-09-16 10:15:26,417 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-09-16 10:15:26,417 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-09-16 10:15:26,417 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:15:26,418 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-09-16 10:15:26,418 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=198, Invalid=452, Unknown=0, NotChecked=0, Total=650 [2022-09-16 10:15:26,418 INFO L87 Difference]: Start difference. First operand 434245 states and 1413767 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 10:15:48,756 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:15:48,757 INFO L93 Difference]: Finished difference Result 1458627 states and 4610869 transitions. [2022-09-16 10:15:48,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-09-16 10:15:48,757 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 10:15:48,758 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:16:00,549 INFO L225 Difference]: With dead ends: 1458627 [2022-09-16 10:16:00,550 INFO L226 Difference]: Without dead ends: 1443735 [2022-09-16 10:16:00,551 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 202 GetRequests, 145 SyntacticMatches, 0 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1134 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=1158, Invalid=2264, Unknown=0, NotChecked=0, Total=3422 [2022-09-16 10:16:00,551 INFO L413 NwaCegarLoop]: 93 mSDtfsCounter, 5423 mSDsluCounter, 2824 mSDsCounter, 0 mSdLazyCounter, 350 mSolverCounterSat, 151 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5423 SdHoareTripleChecker+Valid, 2905 SdHoareTripleChecker+Invalid, 501 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 151 IncrementalHoareTripleChecker+Valid, 350 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-09-16 10:16:00,551 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5423 Valid, 2905 Invalid, 501 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [151 Valid, 350 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-09-16 10:16:03,404 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1443735 states. [2022-09-16 10:16:41,344 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1443735 to 739899. [2022-09-16 10:16:44,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 739899 states, 739889 states have (on average 3.2724841158606224) internal successors, (2421275), 739898 states have internal predecessors, (2421275), 0 states have call successors, (0), 0 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 10:16:53,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 739899 states to 739899 states and 2421275 transitions. [2022-09-16 10:16:53,671 INFO L78 Accepts]: Start accepts. Automaton has 739899 states and 2421275 transitions. Word has length 81 [2022-09-16 10:16:53,671 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:16:53,671 INFO L495 AbstractCegarLoop]: Abstraction has 739899 states and 2421275 transitions. [2022-09-16 10:16:53,671 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 10:16:53,671 INFO L276 IsEmpty]: Start isEmpty. Operand 739899 states and 2421275 transitions. [2022-09-16 10:16:53,891 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2022-09-16 10:16:53,891 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:16:53,892 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 10:16:53,917 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 10:16:54,115 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 10:16:54,117 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 10:16:54,117 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:16:54,117 INFO L85 PathProgramCache]: Analyzing trace with hash 1299673357, now seen corresponding path program 3 times [2022-09-16 10:16:54,117 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:16:54,118 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1478608583] [2022-09-16 10:16:54,118 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:16:54,118 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:16:54,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:16:54,270 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 10:16:54,270 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:16:54,270 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1478608583] [2022-09-16 10:16:54,271 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1478608583] provided 0 perfect and 1 imperfect interpolant sequences [2022-09-16 10:16:54,271 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [321382798] [2022-09-16 10:16:54,271 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-09-16 10:16:54,271 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 10:16:54,271 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-16 10:16:54,272 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 10:16:54,273 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process