./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test5-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 6c24879c Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test5-1.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash c7b5cea41c34641368705a00e3051c009f6877551b3530b7d4fceaf386f5f58c --- Real Ultimate output --- This is Ultimate 0.2.2-?-6c24879 [2022-07-13 02:40:35,429 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-13 02:40:35,430 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-13 02:40:35,453 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-13 02:40:35,454 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-13 02:40:35,454 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-13 02:40:35,455 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-13 02:40:35,456 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-13 02:40:35,457 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-13 02:40:35,458 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-13 02:40:35,459 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-13 02:40:35,461 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-13 02:40:35,461 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-13 02:40:35,465 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-13 02:40:35,466 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-13 02:40:35,468 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-13 02:40:35,469 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-13 02:40:35,470 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-13 02:40:35,472 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-13 02:40:35,475 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-13 02:40:35,478 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-13 02:40:35,478 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-13 02:40:35,479 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-13 02:40:35,480 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-13 02:40:35,482 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-13 02:40:35,484 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-13 02:40:35,487 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-13 02:40:35,487 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-13 02:40:35,488 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-13 02:40:35,488 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-13 02:40:35,489 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-13 02:40:35,489 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-13 02:40:35,489 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-13 02:40:35,490 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-13 02:40:35,491 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-13 02:40:35,491 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-13 02:40:35,492 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-13 02:40:35,492 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-13 02:40:35,492 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-13 02:40:35,492 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-13 02:40:35,493 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-13 02:40:35,493 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-13 02:40:35,495 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2022-07-13 02:40:35,524 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-13 02:40:35,524 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-13 02:40:35,524 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-13 02:40:35,525 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-13 02:40:35,525 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-13 02:40:35,525 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-13 02:40:35,526 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-13 02:40:35,526 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-13 02:40:35,526 INFO L138 SettingsManager]: * Use SBE=true [2022-07-13 02:40:35,527 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-13 02:40:35,527 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-13 02:40:35,527 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-07-13 02:40:35,527 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-13 02:40:35,527 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-13 02:40:35,528 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-13 02:40:35,528 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-13 02:40:35,528 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-13 02:40:35,528 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-13 02:40:35,528 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-07-13 02:40:35,529 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-13 02:40:35,529 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-13 02:40:35,530 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-13 02:40:35,530 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-13 02:40:35,530 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-13 02:40:35,530 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-13 02:40:35,530 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-13 02:40:35,530 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-13 02:40:35,530 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-13 02:40:35,530 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-13 02:40:35,531 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-13 02:40:35,531 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-13 02:40:35,531 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-13 02:40:35,531 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-13 02:40:35,531 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c7b5cea41c34641368705a00e3051c009f6877551b3530b7d4fceaf386f5f58c [2022-07-13 02:40:35,681 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-13 02:40:35,694 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-13 02:40:35,696 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-13 02:40:35,696 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-13 02:40:35,697 INFO L275 PluginConnector]: CDTParser initialized [2022-07-13 02:40:35,698 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test5-1.i [2022-07-13 02:40:35,773 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3ffff5f53/fa7cc86a67b64f90a1ef60ca07bb232f/FLAG15ebd8a8e [2022-07-13 02:40:36,248 INFO L306 CDTParser]: Found 1 translation units. [2022-07-13 02:40:36,249 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test5-1.i [2022-07-13 02:40:36,261 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3ffff5f53/fa7cc86a67b64f90a1ef60ca07bb232f/FLAG15ebd8a8e [2022-07-13 02:40:36,592 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3ffff5f53/fa7cc86a67b64f90a1ef60ca07bb232f [2022-07-13 02:40:36,594 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-13 02:40:36,595 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-13 02:40:36,596 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-13 02:40:36,596 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-13 02:40:36,607 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-13 02:40:36,608 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.07 02:40:36" (1/1) ... [2022-07-13 02:40:36,608 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@74dbd1da and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:40:36, skipping insertion in model container [2022-07-13 02:40:36,609 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.07 02:40:36" (1/1) ... [2022-07-13 02:40:36,613 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-13 02:40:36,672 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-13 02:40:36,933 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test5-1.i[33021,33034] [2022-07-13 02:40:37,057 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test5-1.i[49681,49694] [2022-07-13 02:40:37,061 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-13 02:40:37,067 INFO L203 MainTranslator]: Completed pre-run [2022-07-13 02:40:37,098 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test5-1.i[33021,33034] [2022-07-13 02:40:37,148 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test5-1.i[49681,49694] [2022-07-13 02:40:37,151 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-13 02:40:37,172 INFO L208 MainTranslator]: Completed translation [2022-07-13 02:40:37,173 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:40:37 WrapperNode [2022-07-13 02:40:37,173 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-13 02:40:37,174 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-13 02:40:37,174 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-13 02:40:37,174 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-13 02:40:37,178 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:40:37" (1/1) ... [2022-07-13 02:40:37,203 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:40:37" (1/1) ... [2022-07-13 02:40:37,284 INFO L137 Inliner]: procedures = 177, calls = 388, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1412 [2022-07-13 02:40:37,284 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-13 02:40:37,285 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-13 02:40:37,285 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-13 02:40:37,285 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-13 02:40:37,294 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:40:37" (1/1) ... [2022-07-13 02:40:37,295 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:40:37" (1/1) ... [2022-07-13 02:40:37,305 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:40:37" (1/1) ... [2022-07-13 02:40:37,305 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:40:37" (1/1) ... [2022-07-13 02:40:37,342 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:40:37" (1/1) ... [2022-07-13 02:40:37,352 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:40:37" (1/1) ... [2022-07-13 02:40:37,356 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:40:37" (1/1) ... [2022-07-13 02:40:37,363 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-13 02:40:37,364 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-13 02:40:37,364 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-13 02:40:37,364 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-13 02:40:37,365 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:40:37" (1/1) ... [2022-07-13 02:40:37,370 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-13 02:40:37,376 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 02:40:37,384 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) [2022-07-13 02:40:37,399 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 [2022-07-13 02:40:37,419 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-07-13 02:40:37,419 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-07-13 02:40:37,420 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-07-13 02:40:37,420 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-07-13 02:40:37,420 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-07-13 02:40:37,420 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-07-13 02:40:37,420 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-07-13 02:40:37,420 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-13 02:40:37,420 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-07-13 02:40:37,420 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-13 02:40:37,421 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2022-07-13 02:40:37,421 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-07-13 02:40:37,421 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-13 02:40:37,421 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-13 02:40:37,421 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-13 02:40:37,421 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-13 02:40:37,559 INFO L234 CfgBuilder]: Building ICFG [2022-07-13 02:40:37,560 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-13 02:40:38,627 INFO L275 CfgBuilder]: Performing block encoding [2022-07-13 02:40:38,633 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-13 02:40:38,634 INFO L299 CfgBuilder]: Removed 83 assume(true) statements. [2022-07-13 02:40:38,635 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 02:40:38 BoogieIcfgContainer [2022-07-13 02:40:38,635 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-13 02:40:38,636 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-13 02:40:38,636 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-13 02:40:38,638 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-13 02:40:38,639 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.07 02:40:36" (1/3) ... [2022-07-13 02:40:38,639 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2121e643 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.07 02:40:38, skipping insertion in model container [2022-07-13 02:40:38,639 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:40:37" (2/3) ... [2022-07-13 02:40:38,639 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2121e643 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.07 02:40:38, skipping insertion in model container [2022-07-13 02:40:38,640 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 02:40:38" (3/3) ... [2022-07-13 02:40:38,640 INFO L111 eAbstractionObserver]: Analyzing ICFG uthash_FNV_test5-1.i [2022-07-13 02:40:38,649 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-13 02:40:38,649 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 10 error locations. [2022-07-13 02:40:38,692 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-13 02:40:38,697 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=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@628c92e3, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@2193be73 [2022-07-13 02:40:38,697 INFO L358 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2022-07-13 02:40:38,701 INFO L276 IsEmpty]: Start isEmpty. Operand has 273 states, 249 states have (on average 1.7108433734939759) internal successors, (426), 264 states have internal predecessors, (426), 11 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) [2022-07-13 02:40:38,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-07-13 02:40:38,704 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 02:40:38,704 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-07-13 02:40:38,705 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-07-13 02:40:38,708 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 02:40:38,708 INFO L85 PathProgramCache]: Analyzing trace with hash 1126982839, now seen corresponding path program 1 times [2022-07-13 02:40:38,713 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 02:40:38,714 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1041590694] [2022-07-13 02:40:38,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 02:40:38,714 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 02:40:38,782 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-13 02:40:38,783 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1492088897] [2022-07-13 02:40:38,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 02:40:38,783 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 02:40:38,784 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 02:40:38,795 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) [2022-07-13 02:40:38,811 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-07-13 02:40:38,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:40:38,934 INFO L263 TraceCheckSpWp]: Trace formula consists of 50 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-13 02:40:38,938 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 02:40:38,961 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 02:40:38,962 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-13 02:40:38,962 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 02:40:38,963 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1041590694] [2022-07-13 02:40:38,963 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-13 02:40:38,963 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1492088897] [2022-07-13 02:40:38,963 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1492088897] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 02:40:38,964 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 02:40:38,964 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-13 02:40:38,965 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1559773918] [2022-07-13 02:40:38,966 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 02:40:38,969 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-13 02:40:38,969 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 02:40:38,997 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-13 02:40:38,997 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-13 02:40:39,001 INFO L87 Difference]: Start difference. First operand has 273 states, 249 states have (on average 1.7108433734939759) internal successors, (426), 264 states have internal predecessors, (426), 11 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 02:40:39,123 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 02:40:39,123 INFO L93 Difference]: Finished difference Result 796 states and 1338 transitions. [2022-07-13 02:40:39,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-13 02:40:39,125 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 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 6 [2022-07-13 02:40:39,126 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 02:40:39,136 INFO L225 Difference]: With dead ends: 796 [2022-07-13 02:40:39,136 INFO L226 Difference]: Without dead ends: 521 [2022-07-13 02:40:39,139 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-13 02:40:39,141 INFO L413 NwaCegarLoop]: 352 mSDtfsCounter, 314 mSDsluCounter, 335 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 325 SdHoareTripleChecker+Valid, 687 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-13 02:40:39,142 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [325 Valid, 687 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-13 02:40:39,153 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 521 states. [2022-07-13 02:40:39,179 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 521 to 341. [2022-07-13 02:40:39,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 341 states, 315 states have (on average 1.3460317460317461) internal successors, (424), 332 states have internal predecessors, (424), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 8 states have call predecessors, (16), 16 states have call successors, (16) [2022-07-13 02:40:39,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 341 states to 341 states and 456 transitions. [2022-07-13 02:40:39,182 INFO L78 Accepts]: Start accepts. Automaton has 341 states and 456 transitions. Word has length 6 [2022-07-13 02:40:39,182 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 02:40:39,182 INFO L495 AbstractCegarLoop]: Abstraction has 341 states and 456 transitions. [2022-07-13 02:40:39,183 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 02:40:39,183 INFO L276 IsEmpty]: Start isEmpty. Operand 341 states and 456 transitions. [2022-07-13 02:40:39,183 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-07-13 02:40:39,183 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 02:40:39,183 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-07-13 02:40:39,204 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-07-13 02:40:39,396 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2022-07-13 02:40:39,397 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-07-13 02:40:39,398 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 02:40:39,398 INFO L85 PathProgramCache]: Analyzing trace with hash 1126331241, now seen corresponding path program 1 times [2022-07-13 02:40:39,398 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 02:40:39,399 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1159208710] [2022-07-13 02:40:39,399 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 02:40:39,399 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 02:40:39,441 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-13 02:40:39,441 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [952045470] [2022-07-13 02:40:39,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 02:40:39,441 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 02:40:39,441 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 02:40:39,443 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) [2022-07-13 02:40:39,445 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-07-13 02:40:39,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:40:39,593 INFO L263 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-13 02:40:39,595 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 02:40:39,605 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 02:40:39,606 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-13 02:40:39,606 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 02:40:39,606 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1159208710] [2022-07-13 02:40:39,607 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-13 02:40:39,607 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [952045470] [2022-07-13 02:40:39,607 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [952045470] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 02:40:39,607 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 02:40:39,610 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-13 02:40:39,611 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [436975875] [2022-07-13 02:40:39,611 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 02:40:39,611 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-13 02:40:39,612 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 02:40:39,612 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-13 02:40:39,612 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-13 02:40:39,613 INFO L87 Difference]: Start difference. First operand 341 states and 456 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 02:40:39,665 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 02:40:39,666 INFO L93 Difference]: Finished difference Result 522 states and 688 transitions. [2022-07-13 02:40:39,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-13 02:40:39,666 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 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 6 [2022-07-13 02:40:39,667 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 02:40:39,669 INFO L225 Difference]: With dead ends: 522 [2022-07-13 02:40:39,669 INFO L226 Difference]: Without dead ends: 519 [2022-07-13 02:40:39,670 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-13 02:40:39,671 INFO L413 NwaCegarLoop]: 383 mSDtfsCounter, 308 mSDsluCounter, 332 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 319 SdHoareTripleChecker+Valid, 715 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-13 02:40:39,672 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [319 Valid, 715 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-13 02:40:39,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 519 states. [2022-07-13 02:40:39,694 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 519 to 345. [2022-07-13 02:40:39,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 345 states, 319 states have (on average 1.3385579937304075) internal successors, (427), 336 states have internal predecessors, (427), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 8 states have call predecessors, (16), 16 states have call successors, (16) [2022-07-13 02:40:39,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 345 states to 345 states and 459 transitions. [2022-07-13 02:40:39,696 INFO L78 Accepts]: Start accepts. Automaton has 345 states and 459 transitions. Word has length 6 [2022-07-13 02:40:39,696 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 02:40:39,696 INFO L495 AbstractCegarLoop]: Abstraction has 345 states and 459 transitions. [2022-07-13 02:40:39,696 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 02:40:39,697 INFO L276 IsEmpty]: Start isEmpty. Operand 345 states and 459 transitions. [2022-07-13 02:40:39,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2022-07-13 02:40:39,701 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 02:40:39,701 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 02:40:39,719 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-07-13 02:40:39,919 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,SelfDestructingSolverStorable1 [2022-07-13 02:40:39,919 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-07-13 02:40:39,919 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 02:40:39,920 INFO L85 PathProgramCache]: Analyzing trace with hash 765811442, now seen corresponding path program 1 times [2022-07-13 02:40:39,920 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 02:40:39,920 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1952371240] [2022-07-13 02:40:39,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 02:40:39,920 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 02:40:40,067 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-13 02:40:40,068 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [347634830] [2022-07-13 02:40:40,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 02:40:40,068 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 02:40:40,068 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 02:40:40,070 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) [2022-07-13 02:40:40,087 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-07-13 02:40:40,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:40:40,922 INFO L263 TraceCheckSpWp]: Trace formula consists of 2978 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-13 02:40:40,927 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 02:40:40,967 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 02:40:40,967 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-13 02:40:40,967 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 02:40:40,967 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1952371240] [2022-07-13 02:40:40,967 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-13 02:40:40,967 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [347634830] [2022-07-13 02:40:40,968 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [347634830] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 02:40:40,968 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 02:40:40,968 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-13 02:40:40,968 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [165750946] [2022-07-13 02:40:40,968 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 02:40:40,968 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-13 02:40:40,968 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 02:40:40,969 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-13 02:40:40,969 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-13 02:40:40,969 INFO L87 Difference]: Start difference. First operand 345 states and 459 transitions. Second operand has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 3 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 02:40:41,019 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 02:40:41,020 INFO L93 Difference]: Finished difference Result 705 states and 943 transitions. [2022-07-13 02:40:41,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-13 02:40:41,020 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 3 states have internal predecessors, (103), 0 states have call successors, (0), 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 103 [2022-07-13 02:40:41,021 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 02:40:41,022 INFO L225 Difference]: With dead ends: 705 [2022-07-13 02:40:41,022 INFO L226 Difference]: Without dead ends: 366 [2022-07-13 02:40:41,023 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 101 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-13 02:40:41,025 INFO L413 NwaCegarLoop]: 330 mSDtfsCounter, 9 mSDsluCounter, 315 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 645 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-13 02:40:41,025 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 645 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-13 02:40:41,026 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 366 states. [2022-07-13 02:40:41,034 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 366 to 365. [2022-07-13 02:40:41,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 365 states, 339 states have (on average 1.3185840707964602) internal successors, (447), 356 states have internal predecessors, (447), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 8 states have call predecessors, (16), 16 states have call successors, (16) [2022-07-13 02:40:41,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 365 states to 365 states and 479 transitions. [2022-07-13 02:40:41,036 INFO L78 Accepts]: Start accepts. Automaton has 365 states and 479 transitions. Word has length 103 [2022-07-13 02:40:41,036 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 02:40:41,036 INFO L495 AbstractCegarLoop]: Abstraction has 365 states and 479 transitions. [2022-07-13 02:40:41,037 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 3 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 02:40:41,037 INFO L276 IsEmpty]: Start isEmpty. Operand 365 states and 479 transitions. [2022-07-13 02:40:41,039 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2022-07-13 02:40:41,039 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 02:40:41,039 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 02:40:41,067 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-07-13 02:40:41,259 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 02:40:41,260 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-07-13 02:40:41,260 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 02:40:41,260 INFO L85 PathProgramCache]: Analyzing trace with hash 525571696, now seen corresponding path program 1 times [2022-07-13 02:40:41,260 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 02:40:41,260 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [427323309] [2022-07-13 02:40:41,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 02:40:41,260 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 02:40:41,432 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-13 02:40:41,433 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1587668503] [2022-07-13 02:40:41,433 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 02:40:41,479 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 02:40:41,480 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 02:40:41,482 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) [2022-07-13 02:40:41,485 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-07-13 02:40:42,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:40:42,369 INFO L263 TraceCheckSpWp]: Trace formula consists of 2980 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-13 02:40:42,374 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 02:40:42,383 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 02:40:42,383 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-13 02:40:42,383 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 02:40:42,383 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [427323309] [2022-07-13 02:40:42,383 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-13 02:40:42,383 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1587668503] [2022-07-13 02:40:42,384 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1587668503] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 02:40:42,384 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 02:40:42,384 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-13 02:40:42,384 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1951848646] [2022-07-13 02:40:42,384 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 02:40:42,385 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-13 02:40:42,385 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 02:40:42,385 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-13 02:40:42,385 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-13 02:40:42,385 INFO L87 Difference]: Start difference. First operand 365 states and 479 transitions. Second operand has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 3 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 02:40:42,440 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 02:40:42,440 INFO L93 Difference]: Finished difference Result 745 states and 983 transitions. [2022-07-13 02:40:42,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-13 02:40:42,442 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 3 states have internal predecessors, (103), 0 states have call successors, (0), 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 103 [2022-07-13 02:40:42,442 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 02:40:42,443 INFO L225 Difference]: With dead ends: 745 [2022-07-13 02:40:42,443 INFO L226 Difference]: Without dead ends: 386 [2022-07-13 02:40:42,444 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 101 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-13 02:40:42,445 INFO L413 NwaCegarLoop]: 330 mSDtfsCounter, 9 mSDsluCounter, 315 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 645 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-13 02:40:42,445 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 645 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-13 02:40:42,446 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 386 states. [2022-07-13 02:40:42,451 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 386 to 385. [2022-07-13 02:40:42,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 385 states, 359 states have (on average 1.3008356545961002) internal successors, (467), 376 states have internal predecessors, (467), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 8 states have call predecessors, (16), 16 states have call successors, (16) [2022-07-13 02:40:42,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 385 states to 385 states and 499 transitions. [2022-07-13 02:40:42,452 INFO L78 Accepts]: Start accepts. Automaton has 385 states and 499 transitions. Word has length 103 [2022-07-13 02:40:42,453 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 02:40:42,453 INFO L495 AbstractCegarLoop]: Abstraction has 385 states and 499 transitions. [2022-07-13 02:40:42,453 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 3 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 02:40:42,453 INFO L276 IsEmpty]: Start isEmpty. Operand 385 states and 499 transitions. [2022-07-13 02:40:42,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2022-07-13 02:40:42,455 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 02:40:42,456 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 02:40:42,478 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-07-13 02:40:42,659 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 02:40:42,659 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-07-13 02:40:42,660 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 02:40:42,660 INFO L85 PathProgramCache]: Analyzing trace with hash 919938482, now seen corresponding path program 1 times [2022-07-13 02:40:42,660 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 02:40:42,660 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [358574282] [2022-07-13 02:40:42,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 02:40:42,660 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 02:40:42,832 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-13 02:40:42,832 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1494210634] [2022-07-13 02:40:42,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 02:40:42,833 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 02:40:42,833 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 02:40:42,848 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) [2022-07-13 02:40:42,872 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-07-13 02:40:43,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:40:43,932 INFO L263 TraceCheckSpWp]: Trace formula consists of 2982 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-13 02:40:43,936 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 02:40:43,953 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 02:40:43,953 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-13 02:40:43,953 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 02:40:43,953 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [358574282] [2022-07-13 02:40:43,953 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-13 02:40:43,954 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1494210634] [2022-07-13 02:40:43,954 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1494210634] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 02:40:43,954 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 02:40:43,954 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-13 02:40:43,954 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [523177067] [2022-07-13 02:40:43,954 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 02:40:43,957 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-13 02:40:43,957 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 02:40:43,957 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-13 02:40:43,957 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-13 02:40:43,958 INFO L87 Difference]: Start difference. First operand 385 states and 499 transitions. Second operand has 4 states, 4 states have (on average 25.75) internal successors, (103), 4 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 02:40:44,053 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 02:40:44,053 INFO L93 Difference]: Finished difference Result 755 states and 983 transitions. [2022-07-13 02:40:44,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-13 02:40:44,058 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 25.75) internal successors, (103), 4 states have internal predecessors, (103), 0 states have call successors, (0), 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 103 [2022-07-13 02:40:44,059 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 02:40:44,060 INFO L225 Difference]: With dead ends: 755 [2022-07-13 02:40:44,060 INFO L226 Difference]: Without dead ends: 376 [2022-07-13 02:40:44,061 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 100 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-13 02:40:44,062 INFO L413 NwaCegarLoop]: 331 mSDtfsCounter, 309 mSDsluCounter, 346 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 320 SdHoareTripleChecker+Valid, 677 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-13 02:40:44,062 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [320 Valid, 677 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-13 02:40:44,063 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 376 states. [2022-07-13 02:40:44,069 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 376 to 371. [2022-07-13 02:40:44,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 371 states, 345 states have (on average 1.2927536231884058) internal successors, (446), 362 states have internal predecessors, (446), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 8 states have call predecessors, (16), 16 states have call successors, (16) [2022-07-13 02:40:44,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 371 states to 371 states and 478 transitions. [2022-07-13 02:40:44,078 INFO L78 Accepts]: Start accepts. Automaton has 371 states and 478 transitions. Word has length 103 [2022-07-13 02:40:44,079 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 02:40:44,080 INFO L495 AbstractCegarLoop]: Abstraction has 371 states and 478 transitions. [2022-07-13 02:40:44,080 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 25.75) internal successors, (103), 4 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 02:40:44,080 INFO L276 IsEmpty]: Start isEmpty. Operand 371 states and 478 transitions. [2022-07-13 02:40:44,087 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2022-07-13 02:40:44,088 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 02:40:44,091 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 02:40:44,117 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-07-13 02:40:44,309 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 02:40:44,309 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-07-13 02:40:44,310 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 02:40:44,310 INFO L85 PathProgramCache]: Analyzing trace with hash 6087360, now seen corresponding path program 1 times [2022-07-13 02:40:44,310 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 02:40:44,310 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1850127329] [2022-07-13 02:40:44,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 02:40:44,311 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 02:40:44,438 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-13 02:40:44,438 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2141773575] [2022-07-13 02:40:44,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 02:40:44,439 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 02:40:44,439 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 02:40:44,440 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) [2022-07-13 02:40:44,441 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-07-13 02:40:45,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:40:45,670 INFO L263 TraceCheckSpWp]: Trace formula consists of 2968 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-13 02:40:45,674 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 02:40:45,688 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 02:40:45,688 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-13 02:40:45,688 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 02:40:45,688 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1850127329] [2022-07-13 02:40:45,688 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-13 02:40:45,688 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2141773575] [2022-07-13 02:40:45,688 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2141773575] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 02:40:45,688 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 02:40:45,688 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-13 02:40:45,689 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1548127665] [2022-07-13 02:40:45,689 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 02:40:45,689 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-13 02:40:45,689 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 02:40:45,689 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-13 02:40:45,689 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-13 02:40:45,689 INFO L87 Difference]: Start difference. First operand 371 states and 478 transitions. Second operand has 4 states, 4 states have (on average 25.75) internal successors, (103), 4 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 02:40:45,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 02:40:45,762 INFO L93 Difference]: Finished difference Result 816 states and 1050 transitions. [2022-07-13 02:40:45,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-13 02:40:45,763 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 25.75) internal successors, (103), 4 states have internal predecessors, (103), 0 states have call successors, (0), 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 103 [2022-07-13 02:40:45,763 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 02:40:45,765 INFO L225 Difference]: With dead ends: 816 [2022-07-13 02:40:45,765 INFO L226 Difference]: Without dead ends: 451 [2022-07-13 02:40:45,765 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 100 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-13 02:40:45,767 INFO L413 NwaCegarLoop]: 427 mSDtfsCounter, 302 mSDsluCounter, 545 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 313 SdHoareTripleChecker+Valid, 972 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-13 02:40:45,767 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [313 Valid, 972 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-13 02:40:45,769 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 451 states. [2022-07-13 02:40:45,777 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 451 to 357. [2022-07-13 02:40:45,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 357 states, 331 states have (on average 1.283987915407855) internal successors, (425), 348 states have internal predecessors, (425), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 8 states have call predecessors, (16), 16 states have call successors, (16) [2022-07-13 02:40:45,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 357 states to 357 states and 457 transitions. [2022-07-13 02:40:45,779 INFO L78 Accepts]: Start accepts. Automaton has 357 states and 457 transitions. Word has length 103 [2022-07-13 02:40:45,779 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 02:40:45,779 INFO L495 AbstractCegarLoop]: Abstraction has 357 states and 457 transitions. [2022-07-13 02:40:45,780 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 25.75) internal successors, (103), 4 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 02:40:45,780 INFO L276 IsEmpty]: Start isEmpty. Operand 357 states and 457 transitions. [2022-07-13 02:40:45,780 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2022-07-13 02:40:45,781 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 02:40:45,781 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 02:40:45,804 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-07-13 02:40:45,990 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 02:40:45,991 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-07-13 02:40:45,991 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 02:40:45,991 INFO L85 PathProgramCache]: Analyzing trace with hash 2030023538, now seen corresponding path program 1 times [2022-07-13 02:40:45,991 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 02:40:45,992 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1994422987] [2022-07-13 02:40:45,992 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 02:40:45,993 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 02:40:46,127 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-13 02:40:46,127 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1319046909] [2022-07-13 02:40:46,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 02:40:46,127 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 02:40:46,128 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 02:40:46,129 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) [2022-07-13 02:40:46,143 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-07-13 02:40:47,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:40:47,435 INFO L263 TraceCheckSpWp]: Trace formula consists of 2954 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-13 02:40:47,439 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 02:40:47,604 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 02:40:47,604 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-13 02:40:47,604 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 02:40:47,604 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1994422987] [2022-07-13 02:40:47,604 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-13 02:40:47,605 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1319046909] [2022-07-13 02:40:47,605 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1319046909] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 02:40:47,605 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 02:40:47,605 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-13 02:40:47,605 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [143330125] [2022-07-13 02:40:47,605 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 02:40:47,606 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-13 02:40:47,606 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 02:40:47,606 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-13 02:40:47,606 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-13 02:40:47,606 INFO L87 Difference]: Start difference. First operand 357 states and 457 transitions. Second operand has 4 states, 3 states have (on average 34.333333333333336) internal successors, (103), 4 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 02:40:47,650 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 02:40:47,651 INFO L93 Difference]: Finished difference Result 543 states and 681 transitions. [2022-07-13 02:40:47,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-13 02:40:47,651 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 34.333333333333336) internal successors, (103), 4 states have internal predecessors, (103), 0 states have call successors, (0), 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 103 [2022-07-13 02:40:47,651 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 02:40:47,653 INFO L225 Difference]: With dead ends: 543 [2022-07-13 02:40:47,653 INFO L226 Difference]: Without dead ends: 542 [2022-07-13 02:40:47,653 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 100 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-13 02:40:47,654 INFO L413 NwaCegarLoop]: 366 mSDtfsCounter, 199 mSDsluCounter, 682 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 210 SdHoareTripleChecker+Valid, 1048 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-13 02:40:47,654 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [210 Valid, 1048 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-13 02:40:47,655 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 542 states. [2022-07-13 02:40:47,663 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 542 to 538. [2022-07-13 02:40:47,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 538 states, 506 states have (on average 1.2529644268774704) internal successors, (634), 523 states have internal predecessors, (634), 22 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (22), 14 states have call predecessors, (22), 22 states have call successors, (22) [2022-07-13 02:40:47,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 538 states to 538 states and 678 transitions. [2022-07-13 02:40:47,665 INFO L78 Accepts]: Start accepts. Automaton has 538 states and 678 transitions. Word has length 103 [2022-07-13 02:40:47,665 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 02:40:47,665 INFO L495 AbstractCegarLoop]: Abstraction has 538 states and 678 transitions. [2022-07-13 02:40:47,666 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 34.333333333333336) internal successors, (103), 4 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 02:40:47,666 INFO L276 IsEmpty]: Start isEmpty. Operand 538 states and 678 transitions. [2022-07-13 02:40:47,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2022-07-13 02:40:47,666 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 02:40:47,667 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 02:40:47,708 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-07-13 02:40:47,907 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 02:40:47,907 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-07-13 02:40:47,908 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 02:40:47,908 INFO L85 PathProgramCache]: Analyzing trace with hash -1493778997, now seen corresponding path program 1 times [2022-07-13 02:40:47,908 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 02:40:47,908 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [965246588] [2022-07-13 02:40:47,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 02:40:47,908 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 02:40:48,031 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-13 02:40:48,031 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1507058282] [2022-07-13 02:40:48,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 02:40:48,032 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 02:40:48,032 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 02:40:48,049 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) [2022-07-13 02:40:48,050 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-07-13 02:40:49,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:40:49,578 INFO L263 TraceCheckSpWp]: Trace formula consists of 2955 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-13 02:40:49,582 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 02:40:49,682 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 02:40:49,683 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-13 02:40:49,683 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 02:40:49,683 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [965246588] [2022-07-13 02:40:49,683 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-13 02:40:49,683 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1507058282] [2022-07-13 02:40:49,683 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1507058282] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 02:40:49,684 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 02:40:49,684 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-13 02:40:49,684 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [514123815] [2022-07-13 02:40:49,684 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 02:40:49,684 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-13 02:40:49,685 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 02:40:49,685 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-13 02:40:49,685 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-13 02:40:49,685 INFO L87 Difference]: Start difference. First operand 538 states and 678 transitions. Second operand has 4 states, 3 states have (on average 34.666666666666664) internal successors, (104), 4 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 02:40:49,719 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 02:40:49,719 INFO L93 Difference]: Finished difference Result 538 states and 678 transitions. [2022-07-13 02:40:49,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-13 02:40:49,720 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 34.666666666666664) internal successors, (104), 4 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 104 [2022-07-13 02:40:49,720 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 02:40:49,722 INFO L225 Difference]: With dead ends: 538 [2022-07-13 02:40:49,722 INFO L226 Difference]: Without dead ends: 536 [2022-07-13 02:40:49,722 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 101 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-13 02:40:49,722 INFO L413 NwaCegarLoop]: 317 mSDtfsCounter, 202 mSDsluCounter, 335 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 213 SdHoareTripleChecker+Valid, 652 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-13 02:40:49,723 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [213 Valid, 652 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-13 02:40:49,723 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 536 states. [2022-07-13 02:40:49,733 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 536 to 535. [2022-07-13 02:40:49,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 535 states, 505 states have (on average 1.2495049504950495) internal successors, (631), 520 states have internal predecessors, (631), 22 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (22), 14 states have call predecessors, (22), 22 states have call successors, (22) [2022-07-13 02:40:49,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 535 states to 535 states and 675 transitions. [2022-07-13 02:40:49,735 INFO L78 Accepts]: Start accepts. Automaton has 535 states and 675 transitions. Word has length 104 [2022-07-13 02:40:49,735 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 02:40:49,735 INFO L495 AbstractCegarLoop]: Abstraction has 535 states and 675 transitions. [2022-07-13 02:40:49,736 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 34.666666666666664) internal successors, (104), 4 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 02:40:49,736 INFO L276 IsEmpty]: Start isEmpty. Operand 535 states and 675 transitions. [2022-07-13 02:40:49,736 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2022-07-13 02:40:49,737 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 02:40:49,737 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 02:40:49,765 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-07-13 02:40:49,947 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,SelfDestructingSolverStorable7 [2022-07-13 02:40:49,948 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-07-13 02:40:49,948 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 02:40:49,948 INFO L85 PathProgramCache]: Analyzing trace with hash -1366065166, now seen corresponding path program 1 times [2022-07-13 02:40:49,948 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 02:40:49,948 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1065566598] [2022-07-13 02:40:49,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 02:40:49,949 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 02:40:50,114 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-13 02:40:50,116 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [455401289] [2022-07-13 02:40:50,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 02:40:50,117 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 02:40:50,117 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 02:40:50,118 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) [2022-07-13 02:40:50,130 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-07-13 02:40:51,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:40:51,574 INFO L263 TraceCheckSpWp]: Trace formula consists of 2984 conjuncts, 5 conjunts are in the unsatisfiable core [2022-07-13 02:40:51,578 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 02:40:51,850 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 02:40:51,850 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-13 02:40:51,850 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 02:40:51,850 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1065566598] [2022-07-13 02:40:51,850 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-13 02:40:51,850 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [455401289] [2022-07-13 02:40:51,850 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [455401289] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 02:40:51,850 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 02:40:51,851 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-13 02:40:51,851 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2102298596] [2022-07-13 02:40:51,851 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 02:40:51,851 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-13 02:40:51,851 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 02:40:51,851 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-13 02:40:51,851 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-13 02:40:51,852 INFO L87 Difference]: Start difference. First operand 535 states and 675 transitions. Second operand has 3 states, 3 states have (on average 36.0) internal successors, (108), 3 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 02:40:51,911 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 02:40:51,911 INFO L93 Difference]: Finished difference Result 1001 states and 1288 transitions. [2022-07-13 02:40:51,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-13 02:40:51,912 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.0) internal successors, (108), 3 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 108 [2022-07-13 02:40:51,912 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 02:40:51,914 INFO L225 Difference]: With dead ends: 1001 [2022-07-13 02:40:51,914 INFO L226 Difference]: Without dead ends: 613 [2022-07-13 02:40:51,915 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 106 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-13 02:40:51,915 INFO L413 NwaCegarLoop]: 391 mSDtfsCounter, 138 mSDsluCounter, 312 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 148 SdHoareTripleChecker+Valid, 703 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-13 02:40:51,915 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [148 Valid, 703 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-13 02:40:51,916 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 613 states. [2022-07-13 02:40:51,927 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 613 to 609. [2022-07-13 02:40:51,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 609 states, 569 states have (on average 1.2688927943760984) internal successors, (722), 594 states have internal predecessors, (722), 32 states have call successors, (32), 2 states have call predecessors, (32), 2 states have return successors, (32), 16 states have call predecessors, (32), 32 states have call successors, (32) [2022-07-13 02:40:51,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 609 states to 609 states and 786 transitions. [2022-07-13 02:40:51,930 INFO L78 Accepts]: Start accepts. Automaton has 609 states and 786 transitions. Word has length 108 [2022-07-13 02:40:51,930 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 02:40:51,930 INFO L495 AbstractCegarLoop]: Abstraction has 609 states and 786 transitions. [2022-07-13 02:40:51,930 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.0) internal successors, (108), 3 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 02:40:51,930 INFO L276 IsEmpty]: Start isEmpty. Operand 609 states and 786 transitions. [2022-07-13 02:40:51,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2022-07-13 02:40:51,931 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 02:40:51,931 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 02:40:51,961 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-07-13 02:40:52,147 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 02:40:52,147 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-07-13 02:40:52,148 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 02:40:52,148 INFO L85 PathProgramCache]: Analyzing trace with hash -2105513597, now seen corresponding path program 1 times [2022-07-13 02:40:52,148 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 02:40:52,148 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1033828310] [2022-07-13 02:40:52,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 02:40:52,148 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 02:40:52,248 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-13 02:40:52,248 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [702883583] [2022-07-13 02:40:52,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 02:40:52,249 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 02:40:52,249 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 02:40:52,250 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) [2022-07-13 02:40:52,251 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-07-13 02:40:53,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:40:53,743 INFO L263 TraceCheckSpWp]: Trace formula consists of 2121 conjuncts, 5 conjunts are in the unsatisfiable core [2022-07-13 02:40:53,746 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 02:40:53,838 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-07-13 02:40:53,839 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-13 02:40:53,839 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 02:40:53,839 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1033828310] [2022-07-13 02:40:53,839 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-13 02:40:53,839 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [702883583] [2022-07-13 02:40:53,839 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [702883583] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 02:40:53,839 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 02:40:53,840 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-13 02:40:53,840 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [321477714] [2022-07-13 02:40:53,840 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 02:40:53,840 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-13 02:40:53,841 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 02:40:53,841 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-13 02:40:53,841 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-13 02:40:53,841 INFO L87 Difference]: Start difference. First operand 609 states and 786 transitions. Second operand has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 3 states have internal predecessors, (116), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-07-13 02:40:53,873 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 02:40:53,873 INFO L93 Difference]: Finished difference Result 1158 states and 1504 transitions. [2022-07-13 02:40:53,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-13 02:40:53,875 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 3 states have internal predecessors, (116), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 123 [2022-07-13 02:40:53,875 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 02:40:53,877 INFO L225 Difference]: With dead ends: 1158 [2022-07-13 02:40:53,877 INFO L226 Difference]: Without dead ends: 607 [2022-07-13 02:40:53,878 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 121 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-13 02:40:53,878 INFO L413 NwaCegarLoop]: 333 mSDtfsCounter, 15 mSDsluCounter, 318 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 651 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-13 02:40:53,879 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 651 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-13 02:40:53,879 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 607 states. [2022-07-13 02:40:53,889 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 607 to 607. [2022-07-13 02:40:53,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 607 states, 567 states have (on average 1.2680776014109347) internal successors, (719), 592 states have internal predecessors, (719), 32 states have call successors, (32), 2 states have call predecessors, (32), 2 states have return successors, (32), 16 states have call predecessors, (32), 32 states have call successors, (32) [2022-07-13 02:40:53,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 607 states to 607 states and 783 transitions. [2022-07-13 02:40:53,892 INFO L78 Accepts]: Start accepts. Automaton has 607 states and 783 transitions. Word has length 123 [2022-07-13 02:40:53,892 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 02:40:53,892 INFO L495 AbstractCegarLoop]: Abstraction has 607 states and 783 transitions. [2022-07-13 02:40:53,892 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 3 states have internal predecessors, (116), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-07-13 02:40:53,892 INFO L276 IsEmpty]: Start isEmpty. Operand 607 states and 783 transitions. [2022-07-13 02:40:53,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2022-07-13 02:40:53,893 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 02:40:53,893 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 02:40:53,920 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-07-13 02:40:54,111 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,SelfDestructingSolverStorable9 [2022-07-13 02:40:54,111 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-07-13 02:40:54,112 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 02:40:54,112 INFO L85 PathProgramCache]: Analyzing trace with hash -944295870, now seen corresponding path program 1 times [2022-07-13 02:40:54,112 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 02:40:54,112 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [267953453] [2022-07-13 02:40:54,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 02:40:54,112 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 02:40:54,170 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-13 02:40:54,170 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [945196894] [2022-07-13 02:40:54,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 02:40:54,171 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 02:40:54,171 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 02:40:54,172 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) [2022-07-13 02:40:54,173 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-07-13 02:41:38,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:41:38,687 INFO L263 TraceCheckSpWp]: Trace formula consists of 1258 conjuncts, 5 conjunts are in the unsatisfiable core [2022-07-13 02:41:38,690 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 02:41:38,702 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-07-13 02:41:38,702 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-13 02:41:38,702 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 02:41:38,702 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [267953453] [2022-07-13 02:41:38,703 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-13 02:41:38,703 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [945196894] [2022-07-13 02:41:38,703 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [945196894] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 02:41:38,703 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 02:41:38,703 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-13 02:41:38,703 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1717685224] [2022-07-13 02:41:38,703 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 02:41:38,703 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-13 02:41:38,703 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 02:41:38,704 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-13 02:41:38,704 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-13 02:41:38,704 INFO L87 Difference]: Start difference. First operand 607 states and 783 transitions. Second operand has 4 states, 4 states have (on average 31.0) internal successors, (124), 4 states have internal predecessors, (124), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2022-07-13 02:41:38,754 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 02:41:38,754 INFO L93 Difference]: Finished difference Result 1165 states and 1523 transitions. [2022-07-13 02:41:38,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-13 02:41:38,755 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 31.0) internal successors, (124), 4 states have internal predecessors, (124), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) Word has length 138 [2022-07-13 02:41:38,755 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 02:41:38,759 INFO L225 Difference]: With dead ends: 1165 [2022-07-13 02:41:38,759 INFO L226 Difference]: Without dead ends: 610 [2022-07-13 02:41:38,760 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 138 GetRequests, 135 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-13 02:41:38,760 INFO L413 NwaCegarLoop]: 330 mSDtfsCounter, 2 mSDsluCounter, 653 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 983 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-13 02:41:38,761 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 983 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-13 02:41:38,761 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 610 states. [2022-07-13 02:41:38,774 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 610 to 610. [2022-07-13 02:41:38,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 610 states, 569 states have (on average 1.2688927943760984) internal successors, (722), 595 states have internal predecessors, (722), 32 states have call successors, (32), 2 states have call predecessors, (32), 3 states have return successors, (36), 16 states have call predecessors, (36), 32 states have call successors, (36) [2022-07-13 02:41:38,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 610 states to 610 states and 790 transitions. [2022-07-13 02:41:38,780 INFO L78 Accepts]: Start accepts. Automaton has 610 states and 790 transitions. Word has length 138 [2022-07-13 02:41:38,780 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 02:41:38,780 INFO L495 AbstractCegarLoop]: Abstraction has 610 states and 790 transitions. [2022-07-13 02:41:38,780 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 31.0) internal successors, (124), 4 states have internal predecessors, (124), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2022-07-13 02:41:38,780 INFO L276 IsEmpty]: Start isEmpty. Operand 610 states and 790 transitions. [2022-07-13 02:41:38,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2022-07-13 02:41:38,782 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 02:41:38,782 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 02:41:38,876 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2022-07-13 02:41:39,007 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2022-07-13 02:41:39,008 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-07-13 02:41:39,008 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 02:41:39,008 INFO L85 PathProgramCache]: Analyzing trace with hash 1074478014, now seen corresponding path program 1 times [2022-07-13 02:41:39,008 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 02:41:39,008 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1884346882] [2022-07-13 02:41:39,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 02:41:39,008 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 02:41:39,070 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-13 02:41:39,071 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1563641578] [2022-07-13 02:41:39,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 02:41:39,071 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 02:41:39,071 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 02:41:39,072 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) [2022-07-13 02:41:39,073 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2022-07-13 02:42:07,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:42:07,053 INFO L263 TraceCheckSpWp]: Trace formula consists of 1318 conjuncts, 12 conjunts are in the unsatisfiable core [2022-07-13 02:42:07,056 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 02:42:07,086 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 35 proven. 5 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-07-13 02:42:07,087 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-13 02:42:07,171 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 16 proven. 7 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-07-13 02:42:07,171 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 02:42:07,171 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1884346882] [2022-07-13 02:42:07,171 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-13 02:42:07,172 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1563641578] [2022-07-13 02:42:07,172 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1563641578] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-13 02:42:07,172 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-13 02:42:07,172 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2022-07-13 02:42:07,172 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1367854700] [2022-07-13 02:42:07,172 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-13 02:42:07,173 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-13 02:42:07,173 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 02:42:07,173 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-13 02:42:07,173 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-07-13 02:42:07,173 INFO L87 Difference]: Start difference. First operand 610 states and 790 transitions. Second operand has 8 states, 8 states have (on average 16.875) internal successors, (135), 8 states have internal predecessors, (135), 2 states have call successors, (5), 2 states have call predecessors, (5), 4 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-07-13 02:42:07,292 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 02:42:07,292 INFO L93 Difference]: Finished difference Result 1179 states and 1553 transitions. [2022-07-13 02:42:07,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-07-13 02:42:07,293 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 16.875) internal successors, (135), 8 states have internal predecessors, (135), 2 states have call successors, (5), 2 states have call predecessors, (5), 4 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 142 [2022-07-13 02:42:07,293 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 02:42:07,295 INFO L225 Difference]: With dead ends: 1179 [2022-07-13 02:42:07,295 INFO L226 Difference]: Without dead ends: 619 [2022-07-13 02:42:07,296 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 286 GetRequests, 276 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=53, Invalid=79, Unknown=0, NotChecked=0, Total=132 [2022-07-13 02:42:07,297 INFO L413 NwaCegarLoop]: 328 mSDtfsCounter, 19 mSDsluCounter, 647 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 975 SdHoareTripleChecker+Invalid, 81 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-13 02:42:07,297 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 975 Invalid, 81 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-13 02:42:07,298 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 619 states. [2022-07-13 02:42:07,308 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 619 to 619. [2022-07-13 02:42:07,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 619 states, 577 states have (on average 1.2720970537261698) internal successors, (734), 603 states have internal predecessors, (734), 32 states have call successors, (32), 3 states have call predecessors, (32), 4 states have return successors, (36), 16 states have call predecessors, (36), 32 states have call successors, (36) [2022-07-13 02:42:07,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 619 states to 619 states and 802 transitions. [2022-07-13 02:42:07,310 INFO L78 Accepts]: Start accepts. Automaton has 619 states and 802 transitions. Word has length 142 [2022-07-13 02:42:07,311 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 02:42:07,311 INFO L495 AbstractCegarLoop]: Abstraction has 619 states and 802 transitions. [2022-07-13 02:42:07,311 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 16.875) internal successors, (135), 8 states have internal predecessors, (135), 2 states have call successors, (5), 2 states have call predecessors, (5), 4 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-07-13 02:42:07,311 INFO L276 IsEmpty]: Start isEmpty. Operand 619 states and 802 transitions. [2022-07-13 02:42:07,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2022-07-13 02:42:07,312 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 02:42:07,312 INFO L195 NwaCegarLoop]: trace histogram [12, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 02:42:07,367 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2022-07-13 02:42:07,530 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2022-07-13 02:42:07,530 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-07-13 02:42:07,531 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 02:42:07,531 INFO L85 PathProgramCache]: Analyzing trace with hash -1045069566, now seen corresponding path program 2 times [2022-07-13 02:42:07,531 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 02:42:07,531 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2088289283] [2022-07-13 02:42:07,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 02:42:07,531 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 02:42:07,595 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-13 02:42:07,595 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1089479212] [2022-07-13 02:42:07,595 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-13 02:42:07,595 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 02:42:07,596 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 02:42:07,597 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) [2022-07-13 02:42:07,598 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2022-07-13 02:43:02,895 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-07-13 02:43:02,896 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-13 02:43:02,935 INFO L263 TraceCheckSpWp]: Trace formula consists of 1438 conjuncts, 16 conjunts are in the unsatisfiable core [2022-07-13 02:43:02,938 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 02:43:02,983 INFO L134 CoverageAnalysis]: Checked inductivity of 142 backedges. 68 proven. 10 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2022-07-13 02:43:02,983 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-13 02:43:03,095 INFO L134 CoverageAnalysis]: Checked inductivity of 142 backedges. 4 proven. 71 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2022-07-13 02:43:03,095 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 02:43:03,096 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2088289283] [2022-07-13 02:43:03,096 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-13 02:43:03,096 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1089479212] [2022-07-13 02:43:03,096 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1089479212] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-13 02:43:03,096 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-13 02:43:03,096 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8] total 15 [2022-07-13 02:43:03,096 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [853535255] [2022-07-13 02:43:03,096 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-13 02:43:03,096 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-07-13 02:43:03,096 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 02:43:03,097 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-07-13 02:43:03,097 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=147, Unknown=0, NotChecked=0, Total=210 [2022-07-13 02:43:03,097 INFO L87 Difference]: Start difference. First operand 619 states and 802 transitions. Second operand has 15 states, 15 states have (on average 9.466666666666667) internal successors, (142), 15 states have internal predecessors, (142), 2 states have call successors, (7), 2 states have call predecessors, (7), 4 states have return successors, (8), 1 states have call predecessors, (8), 2 states have call successors, (8) [2022-07-13 02:43:03,579 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 02:43:03,580 INFO L93 Difference]: Finished difference Result 1241 states and 1643 transitions. [2022-07-13 02:43:03,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-07-13 02:43:03,580 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 9.466666666666667) internal successors, (142), 15 states have internal predecessors, (142), 2 states have call successors, (7), 2 states have call predecessors, (7), 4 states have return successors, (8), 1 states have call predecessors, (8), 2 states have call successors, (8) Word has length 150 [2022-07-13 02:43:03,581 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 02:43:03,583 INFO L225 Difference]: With dead ends: 1241 [2022-07-13 02:43:03,583 INFO L226 Difference]: Without dead ends: 628 [2022-07-13 02:43:03,585 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 311 GetRequests, 285 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=244, Invalid=512, Unknown=0, NotChecked=0, Total=756 [2022-07-13 02:43:03,586 INFO L413 NwaCegarLoop]: 324 mSDtfsCounter, 341 mSDsluCounter, 2259 mSDsCounter, 0 mSdLazyCounter, 338 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 360 SdHoareTripleChecker+Valid, 2583 SdHoareTripleChecker+Invalid, 386 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 338 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-13 02:43:03,586 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [360 Valid, 2583 Invalid, 386 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 338 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-13 02:43:03,587 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 628 states. [2022-07-13 02:43:03,599 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 628 to 622. [2022-07-13 02:43:03,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 622 states, 580 states have (on average 1.2724137931034483) internal successors, (738), 606 states have internal predecessors, (738), 32 states have call successors, (32), 3 states have call predecessors, (32), 4 states have return successors, (36), 16 states have call predecessors, (36), 32 states have call successors, (36) [2022-07-13 02:43:03,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 622 states to 622 states and 806 transitions. [2022-07-13 02:43:03,602 INFO L78 Accepts]: Start accepts. Automaton has 622 states and 806 transitions. Word has length 150 [2022-07-13 02:43:03,602 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 02:43:03,602 INFO L495 AbstractCegarLoop]: Abstraction has 622 states and 806 transitions. [2022-07-13 02:43:03,602 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 9.466666666666667) internal successors, (142), 15 states have internal predecessors, (142), 2 states have call successors, (7), 2 states have call predecessors, (7), 4 states have return successors, (8), 1 states have call predecessors, (8), 2 states have call successors, (8) [2022-07-13 02:43:03,602 INFO L276 IsEmpty]: Start isEmpty. Operand 622 states and 806 transitions. [2022-07-13 02:43:03,603 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2022-07-13 02:43:03,603 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 02:43:03,604 INFO L195 NwaCegarLoop]: trace histogram [30, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 02:43:03,678 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2022-07-13 02:43:03,824 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,SelfDestructingSolverStorable12 [2022-07-13 02:43:03,824 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-07-13 02:43:03,825 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 02:43:03,825 INFO L85 PathProgramCache]: Analyzing trace with hash 97262272, now seen corresponding path program 3 times [2022-07-13 02:43:03,825 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 02:43:03,825 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1107895901] [2022-07-13 02:43:03,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 02:43:03,825 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 02:43:03,892 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-13 02:43:03,893 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1978692053] [2022-07-13 02:43:03,893 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-07-13 02:43:03,893 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 02:43:03,893 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 02:43:03,894 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) [2022-07-13 02:43:03,899 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2022-07-13 02:43:05,724 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-07-13 02:43:05,725 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-13 02:43:05,731 INFO L263 TraceCheckSpWp]: Trace formula consists of 391 conjuncts, 5 conjunts are in the unsatisfiable core [2022-07-13 02:43:05,734 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 02:43:05,870 INFO L134 CoverageAnalysis]: Checked inductivity of 583 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 579 trivial. 0 not checked. [2022-07-13 02:43:05,871 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-13 02:43:05,871 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 02:43:05,871 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1107895901] [2022-07-13 02:43:05,871 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-13 02:43:05,871 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1978692053] [2022-07-13 02:43:05,871 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1978692053] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 02:43:05,871 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 02:43:05,872 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-13 02:43:05,872 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [690190865] [2022-07-13 02:43:05,872 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 02:43:05,872 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-13 02:43:05,872 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 02:43:05,873 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-13 02:43:05,873 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-07-13 02:43:05,873 INFO L87 Difference]: Start difference. First operand 622 states and 806 transitions. Second operand has 6 states, 5 states have (on average 24.4) internal successors, (122), 6 states have internal predecessors, (122), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2022-07-13 02:43:05,958 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 02:43:05,959 INFO L93 Difference]: Finished difference Result 627 states and 809 transitions. [2022-07-13 02:43:05,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-13 02:43:05,959 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 24.4) internal successors, (122), 6 states have internal predecessors, (122), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 168 [2022-07-13 02:43:05,960 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 02:43:05,961 INFO L225 Difference]: With dead ends: 627 [2022-07-13 02:43:05,961 INFO L226 Difference]: Without dead ends: 624 [2022-07-13 02:43:05,962 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 169 GetRequests, 163 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-07-13 02:43:05,962 INFO L413 NwaCegarLoop]: 610 mSDtfsCounter, 766 mSDsluCounter, 914 mSDsCounter, 0 mSdLazyCounter, 76 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 784 SdHoareTripleChecker+Valid, 1524 SdHoareTripleChecker+Invalid, 101 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 76 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-13 02:43:05,962 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [784 Valid, 1524 Invalid, 101 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 76 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-13 02:43:05,963 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 624 states. [2022-07-13 02:43:06,011 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 624 to 528. [2022-07-13 02:43:06,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 528 states, 499 states have (on average 1.2404809619238477) internal successors, (619), 512 states have internal predecessors, (619), 22 states have call successors, (22), 3 states have call predecessors, (22), 4 states have return successors, (26), 14 states have call predecessors, (26), 22 states have call successors, (26) [2022-07-13 02:43:06,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 528 states to 528 states and 667 transitions. [2022-07-13 02:43:06,014 INFO L78 Accepts]: Start accepts. Automaton has 528 states and 667 transitions. Word has length 168 [2022-07-13 02:43:06,014 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 02:43:06,015 INFO L495 AbstractCegarLoop]: Abstraction has 528 states and 667 transitions. [2022-07-13 02:43:06,015 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 24.4) internal successors, (122), 6 states have internal predecessors, (122), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2022-07-13 02:43:06,015 INFO L276 IsEmpty]: Start isEmpty. Operand 528 states and 667 transitions. [2022-07-13 02:43:06,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 207 [2022-07-13 02:43:06,016 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 02:43:06,016 INFO L195 NwaCegarLoop]: trace histogram [30, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 02:43:06,033 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2022-07-13 02:43:06,233 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 02:43:06,234 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-07-13 02:43:06,234 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 02:43:06,234 INFO L85 PathProgramCache]: Analyzing trace with hash -1677640314, now seen corresponding path program 1 times [2022-07-13 02:43:06,234 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 02:43:06,234 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [881132030] [2022-07-13 02:43:06,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 02:43:06,235 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 02:43:06,314 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-13 02:43:06,314 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1232993822] [2022-07-13 02:43:06,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 02:43:06,314 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 02:43:06,315 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 02:43:06,316 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-13 02:43:06,355 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2022-07-13 02:43:08,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:43:08,051 INFO L263 TraceCheckSpWp]: Trace formula consists of 1792 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-13 02:43:08,054 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 02:43:08,062 INFO L134 CoverageAnalysis]: Checked inductivity of 580 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 580 trivial. 0 not checked. [2022-07-13 02:43:08,062 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-13 02:43:08,062 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 02:43:08,062 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [881132030] [2022-07-13 02:43:08,062 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-13 02:43:08,062 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1232993822] [2022-07-13 02:43:08,063 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1232993822] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 02:43:08,063 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 02:43:08,063 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-13 02:43:08,063 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1044276508] [2022-07-13 02:43:08,063 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 02:43:08,063 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-13 02:43:08,064 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 02:43:08,064 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-13 02:43:08,064 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-13 02:43:08,064 INFO L87 Difference]: Start difference. First operand 528 states and 667 transitions. Second operand has 3 states, 3 states have (on average 53.333333333333336) internal successors, (160), 3 states have internal predecessors, (160), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2022-07-13 02:43:08,134 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 02:43:08,135 INFO L93 Difference]: Finished difference Result 708 states and 919 transitions. [2022-07-13 02:43:08,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-13 02:43:08,135 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 53.333333333333336) internal successors, (160), 3 states have internal predecessors, (160), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 206 [2022-07-13 02:43:08,135 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 02:43:08,137 INFO L225 Difference]: With dead ends: 708 [2022-07-13 02:43:08,137 INFO L226 Difference]: Without dead ends: 570 [2022-07-13 02:43:08,137 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 205 GetRequests, 204 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-13 02:43:08,138 INFO L413 NwaCegarLoop]: 307 mSDtfsCounter, 10 mSDsluCounter, 292 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 599 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-13 02:43:08,138 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 599 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-13 02:43:08,139 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 570 states. [2022-07-13 02:43:08,148 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 570 to 568. [2022-07-13 02:43:08,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 568 states, 539 states have (on average 1.2226345083487942) internal successors, (659), 552 states have internal predecessors, (659), 22 states have call successors, (22), 3 states have call predecessors, (22), 4 states have return successors, (26), 14 states have call predecessors, (26), 22 states have call successors, (26) [2022-07-13 02:43:08,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 568 states to 568 states and 707 transitions. [2022-07-13 02:43:08,150 INFO L78 Accepts]: Start accepts. Automaton has 568 states and 707 transitions. Word has length 206 [2022-07-13 02:43:08,150 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 02:43:08,150 INFO L495 AbstractCegarLoop]: Abstraction has 568 states and 707 transitions. [2022-07-13 02:43:08,151 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 53.333333333333336) internal successors, (160), 3 states have internal predecessors, (160), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2022-07-13 02:43:08,151 INFO L276 IsEmpty]: Start isEmpty. Operand 568 states and 707 transitions. [2022-07-13 02:43:08,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 207 [2022-07-13 02:43:08,152 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 02:43:08,152 INFO L195 NwaCegarLoop]: trace histogram [30, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 02:43:08,181 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2022-07-13 02:43:08,379 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2022-07-13 02:43:08,380 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-07-13 02:43:08,380 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 02:43:08,380 INFO L85 PathProgramCache]: Analyzing trace with hash -679204214, now seen corresponding path program 1 times [2022-07-13 02:43:08,380 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 02:43:08,380 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1290499087] [2022-07-13 02:43:08,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 02:43:08,380 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 02:43:08,452 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-13 02:43:08,453 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [334823744] [2022-07-13 02:43:08,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 02:43:08,453 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 02:43:08,453 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 02:43:08,468 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-13 02:43:08,516 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2022-07-13 02:43:10,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:43:10,181 INFO L263 TraceCheckSpWp]: Trace formula consists of 1796 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-13 02:43:10,185 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 02:43:10,195 INFO L134 CoverageAnalysis]: Checked inductivity of 580 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 580 trivial. 0 not checked. [2022-07-13 02:43:10,196 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-13 02:43:10,196 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 02:43:10,196 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1290499087] [2022-07-13 02:43:10,196 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-13 02:43:10,196 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [334823744] [2022-07-13 02:43:10,196 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [334823744] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 02:43:10,196 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 02:43:10,196 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-13 02:43:10,196 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [742946426] [2022-07-13 02:43:10,196 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 02:43:10,196 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-13 02:43:10,196 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 02:43:10,197 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-13 02:43:10,197 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-13 02:43:10,197 INFO L87 Difference]: Start difference. First operand 568 states and 707 transitions. Second operand has 4 states, 4 states have (on average 40.0) internal successors, (160), 4 states have internal predecessors, (160), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2022-07-13 02:43:10,248 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 02:43:10,249 INFO L93 Difference]: Finished difference Result 726 states and 917 transitions. [2022-07-13 02:43:10,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-13 02:43:10,249 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 40.0) internal successors, (160), 4 states have internal predecessors, (160), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 206 [2022-07-13 02:43:10,250 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 02:43:10,251 INFO L225 Difference]: With dead ends: 726 [2022-07-13 02:43:10,251 INFO L226 Difference]: Without dead ends: 548 [2022-07-13 02:43:10,252 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 206 GetRequests, 203 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-13 02:43:10,252 INFO L413 NwaCegarLoop]: 306 mSDtfsCounter, 85 mSDsluCounter, 526 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 90 SdHoareTripleChecker+Valid, 832 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-13 02:43:10,252 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [90 Valid, 832 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-13 02:43:10,253 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 548 states. [2022-07-13 02:43:10,263 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 548 to 540. [2022-07-13 02:43:10,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 540 states, 511 states have (on average 1.2074363992172212) internal successors, (617), 524 states have internal predecessors, (617), 22 states have call successors, (22), 3 states have call predecessors, (22), 4 states have return successors, (26), 14 states have call predecessors, (26), 22 states have call successors, (26) [2022-07-13 02:43:10,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 540 states to 540 states and 665 transitions. [2022-07-13 02:43:10,266 INFO L78 Accepts]: Start accepts. Automaton has 540 states and 665 transitions. Word has length 206 [2022-07-13 02:43:10,266 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 02:43:10,266 INFO L495 AbstractCegarLoop]: Abstraction has 540 states and 665 transitions. [2022-07-13 02:43:10,267 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 40.0) internal successors, (160), 4 states have internal predecessors, (160), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2022-07-13 02:43:10,267 INFO L276 IsEmpty]: Start isEmpty. Operand 540 states and 665 transitions. [2022-07-13 02:43:10,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 207 [2022-07-13 02:43:10,268 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 02:43:10,269 INFO L195 NwaCegarLoop]: trace histogram [30, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 02:43:10,313 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2022-07-13 02:43:10,494 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2022-07-13 02:43:10,495 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-07-13 02:43:10,495 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 02:43:10,495 INFO L85 PathProgramCache]: Analyzing trace with hash -1562053060, now seen corresponding path program 1 times [2022-07-13 02:43:10,496 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 02:43:10,496 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1357108664] [2022-07-13 02:43:10,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 02:43:10,496 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 02:43:10,577 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-13 02:43:10,577 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [145931603] [2022-07-13 02:43:10,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 02:43:10,578 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 02:43:10,578 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 02:43:10,579 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-13 02:43:10,620 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2022-07-13 02:43:12,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:43:12,382 INFO L263 TraceCheckSpWp]: Trace formula consists of 1782 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-13 02:43:12,385 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 02:43:12,508 INFO L134 CoverageAnalysis]: Checked inductivity of 580 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 579 trivial. 0 not checked. [2022-07-13 02:43:12,508 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-13 02:43:12,644 INFO L134 CoverageAnalysis]: Checked inductivity of 580 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 579 trivial. 0 not checked. [2022-07-13 02:43:12,644 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 02:43:12,645 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1357108664] [2022-07-13 02:43:12,645 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-13 02:43:12,645 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [145931603] [2022-07-13 02:43:12,645 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [145931603] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-13 02:43:12,645 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-13 02:43:12,645 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2022-07-13 02:43:12,645 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [343614044] [2022-07-13 02:43:12,645 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-13 02:43:12,646 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-13 02:43:12,646 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 02:43:12,647 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-13 02:43:12,647 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2022-07-13 02:43:12,647 INFO L87 Difference]: Start difference. First operand 540 states and 665 transitions. Second operand has 8 states, 8 states have (on average 34.25) internal successors, (274), 8 states have internal predecessors, (274), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-07-13 02:43:12,769 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 02:43:12,769 INFO L93 Difference]: Finished difference Result 1124 states and 1403 transitions. [2022-07-13 02:43:12,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-13 02:43:12,770 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 34.25) internal successors, (274), 8 states have internal predecessors, (274), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 206 [2022-07-13 02:43:12,770 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 02:43:12,773 INFO L225 Difference]: With dead ends: 1124 [2022-07-13 02:43:12,773 INFO L226 Difference]: Without dead ends: 972 [2022-07-13 02:43:12,773 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 412 GetRequests, 404 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=35, Invalid=55, Unknown=0, NotChecked=0, Total=90 [2022-07-13 02:43:12,774 INFO L413 NwaCegarLoop]: 359 mSDtfsCounter, 846 mSDsluCounter, 1652 mSDsCounter, 0 mSdLazyCounter, 129 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 875 SdHoareTripleChecker+Valid, 2011 SdHoareTripleChecker+Invalid, 140 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 129 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-13 02:43:12,774 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [875 Valid, 2011 Invalid, 140 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 129 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-13 02:43:12,775 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 972 states. [2022-07-13 02:43:12,787 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 972 to 725. [2022-07-13 02:43:12,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 725 states, 690 states have (on average 1.201449275362319) internal successors, (829), 703 states have internal predecessors, (829), 28 states have call successors, (28), 3 states have call predecessors, (28), 4 states have return successors, (34), 20 states have call predecessors, (34), 28 states have call successors, (34) [2022-07-13 02:43:12,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 725 states to 725 states and 891 transitions. [2022-07-13 02:43:12,789 INFO L78 Accepts]: Start accepts. Automaton has 725 states and 891 transitions. Word has length 206 [2022-07-13 02:43:12,790 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 02:43:12,790 INFO L495 AbstractCegarLoop]: Abstraction has 725 states and 891 transitions. [2022-07-13 02:43:12,790 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 34.25) internal successors, (274), 8 states have internal predecessors, (274), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-07-13 02:43:12,790 INFO L276 IsEmpty]: Start isEmpty. Operand 725 states and 891 transitions. [2022-07-13 02:43:12,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 368 [2022-07-13 02:43:12,793 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 02:43:12,793 INFO L195 NwaCegarLoop]: trace histogram [30, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2022-07-13 02:43:12,822 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Ended with exit code 0 [2022-07-13 02:43:13,022 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2022-07-13 02:43:13,022 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-07-13 02:43:13,023 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 02:43:13,023 INFO L85 PathProgramCache]: Analyzing trace with hash -1575861038, now seen corresponding path program 1 times [2022-07-13 02:43:13,023 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 02:43:13,023 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1394341031] [2022-07-13 02:43:13,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 02:43:13,023 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 02:43:13,328 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-13 02:43:13,329 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1112951649] [2022-07-13 02:43:13,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 02:43:13,329 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 02:43:13,329 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 02:43:13,330 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-13 02:43:13,331 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2022-07-13 02:43:16,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:43:16,494 INFO L263 TraceCheckSpWp]: Trace formula consists of 7502 conjuncts, 7 conjunts are in the unsatisfiable core [2022-07-13 02:43:16,511 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 02:43:16,804 INFO L134 CoverageAnalysis]: Checked inductivity of 875 backedges. 0 proven. 296 refuted. 0 times theorem prover too weak. 579 trivial. 0 not checked. [2022-07-13 02:43:16,804 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-13 02:43:17,087 INFO L134 CoverageAnalysis]: Checked inductivity of 875 backedges. 0 proven. 296 refuted. 0 times theorem prover too weak. 579 trivial. 0 not checked. [2022-07-13 02:43:17,087 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 02:43:17,087 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1394341031] [2022-07-13 02:43:17,087 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-13 02:43:17,087 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1112951649] [2022-07-13 02:43:17,088 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1112951649] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-13 02:43:17,088 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-13 02:43:17,088 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 13 [2022-07-13 02:43:17,088 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1272299052] [2022-07-13 02:43:17,088 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-13 02:43:17,089 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-07-13 02:43:17,089 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 02:43:17,089 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-07-13 02:43:17,089 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=127, Unknown=0, NotChecked=0, Total=182 [2022-07-13 02:43:17,090 INFO L87 Difference]: Start difference. First operand 725 states and 891 transitions. Second operand has 14 states, 13 states have (on average 49.0) internal successors, (637), 14 states have internal predecessors, (637), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-07-13 02:43:17,245 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 02:43:17,246 INFO L93 Difference]: Finished difference Result 1158 states and 1440 transitions. [2022-07-13 02:43:17,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-07-13 02:43:17,246 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 49.0) internal successors, (637), 14 states have internal predecessors, (637), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 367 [2022-07-13 02:43:17,247 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 02:43:17,250 INFO L225 Difference]: With dead ends: 1158 [2022-07-13 02:43:17,250 INFO L226 Difference]: Without dead ends: 1157 [2022-07-13 02:43:17,251 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 736 GetRequests, 720 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=105, Invalid=201, Unknown=0, NotChecked=0, Total=306 [2022-07-13 02:43:17,251 INFO L413 NwaCegarLoop]: 363 mSDtfsCounter, 1718 mSDsluCounter, 1208 mSDsCounter, 0 mSdLazyCounter, 110 mSolverCounterSat, 92 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1749 SdHoareTripleChecker+Valid, 1571 SdHoareTripleChecker+Invalid, 202 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 92 IncrementalHoareTripleChecker+Valid, 110 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-13 02:43:17,251 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1749 Valid, 1571 Invalid, 202 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [92 Valid, 110 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-13 02:43:17,252 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1157 states. [2022-07-13 02:43:17,270 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1157 to 724. [2022-07-13 02:43:17,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 724 states, 690 states have (on average 1.2) internal successors, (828), 702 states have internal predecessors, (828), 28 states have call successors, (28), 3 states have call predecessors, (28), 4 states have return successors, (34), 20 states have call predecessors, (34), 28 states have call successors, (34) [2022-07-13 02:43:17,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 724 states to 724 states and 890 transitions. [2022-07-13 02:43:17,272 INFO L78 Accepts]: Start accepts. Automaton has 724 states and 890 transitions. Word has length 367 [2022-07-13 02:43:17,273 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 02:43:17,273 INFO L495 AbstractCegarLoop]: Abstraction has 724 states and 890 transitions. [2022-07-13 02:43:17,273 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 49.0) internal successors, (637), 14 states have internal predecessors, (637), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-07-13 02:43:17,273 INFO L276 IsEmpty]: Start isEmpty. Operand 724 states and 890 transitions. [2022-07-13 02:43:17,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 411 [2022-07-13 02:43:17,277 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 02:43:17,277 INFO L195 NwaCegarLoop]: trace histogram [30, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 02:43:17,329 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2022-07-13 02:43:17,500 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2022-07-13 02:43:17,501 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-07-13 02:43:17,501 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 02:43:17,501 INFO L85 PathProgramCache]: Analyzing trace with hash -1037223794, now seen corresponding path program 1 times [2022-07-13 02:43:17,501 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 02:43:17,501 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [764144092] [2022-07-13 02:43:17,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 02:43:17,501 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 02:43:17,805 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-13 02:43:17,806 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [760789790] [2022-07-13 02:43:17,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 02:43:17,806 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 02:43:17,806 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 02:43:17,807 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-13 02:43:17,808 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2022-07-13 02:43:21,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:43:21,218 INFO L263 TraceCheckSpWp]: Trace formula consists of 7606 conjuncts, 8 conjunts are in the unsatisfiable core [2022-07-13 02:43:21,240 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 02:43:21,672 INFO L134 CoverageAnalysis]: Checked inductivity of 880 backedges. 0 proven. 301 refuted. 0 times theorem prover too weak. 579 trivial. 0 not checked. [2022-07-13 02:43:21,672 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-13 02:43:21,991 INFO L134 CoverageAnalysis]: Checked inductivity of 880 backedges. 0 proven. 301 refuted. 0 times theorem prover too weak. 579 trivial. 0 not checked. [2022-07-13 02:43:21,992 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 02:43:21,992 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [764144092] [2022-07-13 02:43:21,992 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-13 02:43:21,992 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [760789790] [2022-07-13 02:43:21,992 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [760789790] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-13 02:43:21,992 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-13 02:43:21,992 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 16 [2022-07-13 02:43:21,992 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [730730870] [2022-07-13 02:43:21,992 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-13 02:43:21,993 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-07-13 02:43:21,993 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 02:43:21,993 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-07-13 02:43:21,993 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=168, Unknown=0, NotChecked=0, Total=240 [2022-07-13 02:43:21,994 INFO L87 Difference]: Start difference. First operand 724 states and 890 transitions. Second operand has 16 states, 16 states have (on average 42.625) internal successors, (682), 16 states have internal predecessors, (682), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-07-13 02:43:22,267 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 02:43:22,267 INFO L93 Difference]: Finished difference Result 2146 states and 2669 transitions. [2022-07-13 02:43:22,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-07-13 02:43:22,268 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 42.625) internal successors, (682), 16 states have internal predecessors, (682), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 410 [2022-07-13 02:43:22,269 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 02:43:22,274 INFO L225 Difference]: With dead ends: 2146 [2022-07-13 02:43:22,274 INFO L226 Difference]: Without dead ends: 1995 [2022-07-13 02:43:22,275 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 824 GetRequests, 804 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=151, Invalid=311, Unknown=0, NotChecked=0, Total=462 [2022-07-13 02:43:22,276 INFO L413 NwaCegarLoop]: 392 mSDtfsCounter, 3891 mSDsluCounter, 2306 mSDsCounter, 0 mSdLazyCounter, 183 mSolverCounterSat, 128 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3954 SdHoareTripleChecker+Valid, 2698 SdHoareTripleChecker+Invalid, 311 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 128 IncrementalHoareTripleChecker+Valid, 183 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-13 02:43:22,276 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3954 Valid, 2698 Invalid, 311 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [128 Valid, 183 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-13 02:43:22,277 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1995 states. [2022-07-13 02:43:22,303 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1995 to 1456. [2022-07-13 02:43:22,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1456 states, 1398 states have (on average 1.1931330472103003) internal successors, (1668), 1410 states have internal predecessors, (1668), 52 states have call successors, (52), 3 states have call predecessors, (52), 4 states have return successors, (66), 44 states have call predecessors, (66), 52 states have call successors, (66) [2022-07-13 02:43:22,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1456 states to 1456 states and 1786 transitions. [2022-07-13 02:43:22,308 INFO L78 Accepts]: Start accepts. Automaton has 1456 states and 1786 transitions. Word has length 410 [2022-07-13 02:43:22,308 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 02:43:22,309 INFO L495 AbstractCegarLoop]: Abstraction has 1456 states and 1786 transitions. [2022-07-13 02:43:22,309 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 42.625) internal successors, (682), 16 states have internal predecessors, (682), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-07-13 02:43:22,309 INFO L276 IsEmpty]: Start isEmpty. Operand 1456 states and 1786 transitions. [2022-07-13 02:43:22,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 819 [2022-07-13 02:43:22,323 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 02:43:22,323 INFO L195 NwaCegarLoop]: trace histogram [30, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 02:43:22,370 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2022-07-13 02:43:22,547 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,20 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 02:43:22,548 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-07-13 02:43:22,548 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 02:43:22,548 INFO L85 PathProgramCache]: Analyzing trace with hash -1782223822, now seen corresponding path program 2 times [2022-07-13 02:43:22,548 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 02:43:22,549 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [365151798] [2022-07-13 02:43:22,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 02:43:22,549 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 02:43:23,318 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-13 02:43:23,319 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1660855167] [2022-07-13 02:43:23,319 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-13 02:43:23,319 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 02:43:23,319 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 02:43:23,320 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-13 02:43:23,321 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2022-07-13 02:43:27,276 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-07-13 02:43:27,277 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-13 02:43:27,289 INFO L263 TraceCheckSpWp]: Trace formula consists of 146 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-13 02:43:27,297 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 02:43:28,011 INFO L134 CoverageAnalysis]: Checked inductivity of 2704 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2704 trivial. 0 not checked. [2022-07-13 02:43:28,012 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-13 02:43:28,012 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 02:43:28,012 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [365151798] [2022-07-13 02:43:28,012 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-13 02:43:28,012 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1660855167] [2022-07-13 02:43:28,012 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1660855167] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 02:43:28,012 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 02:43:28,012 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-13 02:43:28,013 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1872291182] [2022-07-13 02:43:28,013 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 02:43:28,013 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-13 02:43:28,013 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 02:43:28,014 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-13 02:43:28,014 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-13 02:43:28,014 INFO L87 Difference]: Start difference. First operand 1456 states and 1786 transitions. Second operand has 4 states, 3 states have (on average 55.333333333333336) internal successors, (166), 3 states have internal predecessors, (166), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2022-07-13 02:43:28,059 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 02:43:28,059 INFO L93 Difference]: Finished difference Result 1551 states and 1915 transitions. [2022-07-13 02:43:28,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-13 02:43:28,060 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 55.333333333333336) internal successors, (166), 3 states have internal predecessors, (166), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 818 [2022-07-13 02:43:28,060 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 02:43:28,064 INFO L225 Difference]: With dead ends: 1551 [2022-07-13 02:43:28,065 INFO L226 Difference]: Without dead ends: 1550 [2022-07-13 02:43:28,065 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 818 GetRequests, 815 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-13 02:43:28,066 INFO L413 NwaCegarLoop]: 316 mSDtfsCounter, 130 mSDsluCounter, 409 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 135 SdHoareTripleChecker+Valid, 725 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-13 02:43:28,066 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [135 Valid, 725 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-13 02:43:28,067 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1550 states. [2022-07-13 02:43:28,097 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1550 to 1525. [2022-07-13 02:43:28,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1525 states, 1467 states have (on average 1.1922290388548058) internal successors, (1749), 1479 states have internal predecessors, (1749), 52 states have call successors, (52), 3 states have call predecessors, (52), 4 states have return successors, (66), 44 states have call predecessors, (66), 52 states have call successors, (66) [2022-07-13 02:43:28,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1525 states to 1525 states and 1867 transitions. [2022-07-13 02:43:28,100 INFO L78 Accepts]: Start accepts. Automaton has 1525 states and 1867 transitions. Word has length 818 [2022-07-13 02:43:28,101 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 02:43:28,101 INFO L495 AbstractCegarLoop]: Abstraction has 1525 states and 1867 transitions. [2022-07-13 02:43:28,101 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 55.333333333333336) internal successors, (166), 3 states have internal predecessors, (166), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2022-07-13 02:43:28,101 INFO L276 IsEmpty]: Start isEmpty. Operand 1525 states and 1867 transitions. [2022-07-13 02:43:28,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 820 [2022-07-13 02:43:28,106 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 02:43:28,107 INFO L195 NwaCegarLoop]: trace histogram [30, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 02:43:28,152 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2022-07-13 02:43:28,335 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,21 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 02:43:28,336 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-07-13 02:43:28,336 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 02:43:28,336 INFO L85 PathProgramCache]: Analyzing trace with hash 585637410, now seen corresponding path program 1 times [2022-07-13 02:43:28,336 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 02:43:28,336 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2145646452] [2022-07-13 02:43:28,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 02:43:28,337 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 02:43:29,706 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-13 02:43:29,707 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [959439016] [2022-07-13 02:43:29,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 02:43:29,707 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 02:43:29,707 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 02:43:29,708 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-13 02:43:29,711 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2022-07-13 02:43:37,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:43:37,281 INFO L263 TraceCheckSpWp]: Trace formula consists of 19255 conjuncts, 16 conjunts are in the unsatisfiable core [2022-07-13 02:43:37,293 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 02:43:37,950 INFO L134 CoverageAnalysis]: Checked inductivity of 2704 backedges. 0 proven. 2125 refuted. 0 times theorem prover too weak. 579 trivial. 0 not checked. [2022-07-13 02:43:37,950 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-13 02:43:38,548 INFO L134 CoverageAnalysis]: Checked inductivity of 2704 backedges. 0 proven. 2125 refuted. 0 times theorem prover too weak. 579 trivial. 0 not checked. [2022-07-13 02:43:38,548 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 02:43:38,548 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2145646452] [2022-07-13 02:43:38,549 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-13 02:43:38,549 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [959439016] [2022-07-13 02:43:38,549 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [959439016] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-13 02:43:38,549 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-13 02:43:38,549 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17] total 21 [2022-07-13 02:43:38,549 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [841722293] [2022-07-13 02:43:38,549 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-13 02:43:38,550 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-07-13 02:43:38,551 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 02:43:38,551 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-07-13 02:43:38,551 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=120, Invalid=300, Unknown=0, NotChecked=0, Total=420 [2022-07-13 02:43:38,552 INFO L87 Difference]: Start difference. First operand 1525 states and 1867 transitions. Second operand has 21 states, 21 states have (on average 47.38095238095238) internal successors, (995), 21 states have internal predecessors, (995), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-07-13 02:43:38,952 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 02:43:38,952 INFO L93 Difference]: Finished difference Result 2909 states and 3604 transitions. [2022-07-13 02:43:38,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-07-13 02:43:38,953 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 47.38095238095238) internal successors, (995), 21 states have internal predecessors, (995), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 819 [2022-07-13 02:43:38,954 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 02:43:38,961 INFO L225 Difference]: With dead ends: 2909 [2022-07-13 02:43:38,961 INFO L226 Difference]: Without dead ends: 2689 [2022-07-13 02:43:38,964 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1645 GetRequests, 1616 SyntacticMatches, 1 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 119 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=273, Invalid=597, Unknown=0, NotChecked=0, Total=870 [2022-07-13 02:43:38,965 INFO L413 NwaCegarLoop]: 415 mSDtfsCounter, 2966 mSDsluCounter, 4836 mSDsCounter, 0 mSdLazyCounter, 436 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3048 SdHoareTripleChecker+Valid, 5251 SdHoareTripleChecker+Invalid, 498 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 436 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-13 02:43:38,965 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3048 Valid, 5251 Invalid, 498 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 436 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-13 02:43:38,968 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2689 states. [2022-07-13 02:43:39,011 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2689 to 2074. [2022-07-13 02:43:39,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2074 states, 1998 states have (on average 1.1906906906906907) internal successors, (2379), 2010 states have internal predecessors, (2379), 70 states have call successors, (70), 3 states have call predecessors, (70), 4 states have return successors, (90), 62 states have call predecessors, (90), 70 states have call successors, (90) [2022-07-13 02:43:39,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2074 states to 2074 states and 2539 transitions. [2022-07-13 02:43:39,016 INFO L78 Accepts]: Start accepts. Automaton has 2074 states and 2539 transitions. Word has length 819 [2022-07-13 02:43:39,017 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 02:43:39,017 INFO L495 AbstractCegarLoop]: Abstraction has 2074 states and 2539 transitions. [2022-07-13 02:43:39,017 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 47.38095238095238) internal successors, (995), 21 states have internal predecessors, (995), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-07-13 02:43:39,018 INFO L276 IsEmpty]: Start isEmpty. Operand 2074 states and 2539 transitions. [2022-07-13 02:43:39,027 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1126 [2022-07-13 02:43:39,028 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 02:43:39,028 INFO L195 NwaCegarLoop]: trace histogram [30, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 02:43:39,115 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Forceful destruction successful, exit code 0 [2022-07-13 02:43:39,243 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,22 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 02:43:39,244 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-07-13 02:43:39,244 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 02:43:39,244 INFO L85 PathProgramCache]: Analyzing trace with hash -241024601, now seen corresponding path program 2 times [2022-07-13 02:43:39,244 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 02:43:39,244 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1884116152] [2022-07-13 02:43:39,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 02:43:39,245 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 02:43:40,342 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-13 02:43:40,342 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1469421503] [2022-07-13 02:43:40,342 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-13 02:43:40,343 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 02:43:40,343 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 02:43:40,344 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-13 02:43:40,344 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2022-07-13 02:43:47,104 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-07-13 02:43:47,104 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-13 02:43:47,123 INFO L263 TraceCheckSpWp]: Trace formula consists of 147 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-13 02:43:47,134 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 02:43:48,120 INFO L134 CoverageAnalysis]: Checked inductivity of 5143 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5143 trivial. 0 not checked. [2022-07-13 02:43:48,120 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-13 02:43:48,120 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 02:43:48,120 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1884116152] [2022-07-13 02:43:48,120 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-13 02:43:48,120 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1469421503] [2022-07-13 02:43:48,120 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1469421503] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 02:43:48,120 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 02:43:48,120 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-13 02:43:48,121 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [701969206] [2022-07-13 02:43:48,121 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 02:43:48,121 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-13 02:43:48,121 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 02:43:48,122 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-13 02:43:48,122 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-13 02:43:48,122 INFO L87 Difference]: Start difference. First operand 2074 states and 2539 transitions. Second operand has 4 states, 3 states have (on average 55.666666666666664) internal successors, (167), 3 states have internal predecessors, (167), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2022-07-13 02:43:48,170 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 02:43:48,171 INFO L93 Difference]: Finished difference Result 2074 states and 2539 transitions. [2022-07-13 02:43:48,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-13 02:43:48,171 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 55.666666666666664) internal successors, (167), 3 states have internal predecessors, (167), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 1125 [2022-07-13 02:43:48,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 02:43:48,177 INFO L225 Difference]: With dead ends: 2074 [2022-07-13 02:43:48,177 INFO L226 Difference]: Without dead ends: 2073 [2022-07-13 02:43:48,178 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1125 GetRequests, 1122 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-13 02:43:48,179 INFO L413 NwaCegarLoop]: 305 mSDtfsCounter, 151 mSDsluCounter, 298 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 151 SdHoareTripleChecker+Valid, 603 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-13 02:43:48,179 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [151 Valid, 603 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-13 02:43:48,180 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2073 states. [2022-07-13 02:43:48,362 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2073 to 2073. [2022-07-13 02:43:48,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2073 states, 1998 states have (on average 1.1896896896896898) internal successors, (2377), 2009 states have internal predecessors, (2377), 70 states have call successors, (70), 3 states have call predecessors, (70), 4 states have return successors, (90), 62 states have call predecessors, (90), 70 states have call successors, (90) [2022-07-13 02:43:48,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2073 states to 2073 states and 2537 transitions. [2022-07-13 02:43:48,378 INFO L78 Accepts]: Start accepts. Automaton has 2073 states and 2537 transitions. Word has length 1125 [2022-07-13 02:43:48,379 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 02:43:48,379 INFO L495 AbstractCegarLoop]: Abstraction has 2073 states and 2537 transitions. [2022-07-13 02:43:48,379 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 55.666666666666664) internal successors, (167), 3 states have internal predecessors, (167), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2022-07-13 02:43:48,379 INFO L276 IsEmpty]: Start isEmpty. Operand 2073 states and 2537 transitions. [2022-07-13 02:43:48,390 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1176 [2022-07-13 02:43:48,390 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 02:43:48,390 INFO L195 NwaCegarLoop]: trace histogram [30, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2022-07-13 02:43:48,432 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Forceful destruction successful, exit code 0 [2022-07-13 02:43:48,615 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,23 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 02:43:48,615 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-07-13 02:43:48,616 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 02:43:48,616 INFO L85 PathProgramCache]: Analyzing trace with hash 1438751536, now seen corresponding path program 1 times [2022-07-13 02:43:48,617 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 02:43:48,617 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [990343011] [2022-07-13 02:43:48,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 02:43:48,617 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 02:43:49,823 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-13 02:43:49,824 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [157127321] [2022-07-13 02:43:49,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 02:43:49,824 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 02:43:49,824 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 02:43:49,825 INFO L229 MonitoredProcess]: Starting monitored process 24 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-13 02:43:49,826 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2022-07-13 02:44:01,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:44:02,024 INFO L263 TraceCheckSpWp]: Trace formula consists of 28108 conjuncts, 5 conjunts are in the unsatisfiable core [2022-07-13 02:44:02,041 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 02:44:02,968 INFO L134 CoverageAnalysis]: Checked inductivity of 5183 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 5143 trivial. 0 not checked. [2022-07-13 02:44:02,968 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-13 02:44:04,086 INFO L134 CoverageAnalysis]: Checked inductivity of 5183 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 5143 trivial. 0 not checked. [2022-07-13 02:44:04,087 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 02:44:04,087 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [990343011] [2022-07-13 02:44:04,087 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-13 02:44:04,087 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [157127321] [2022-07-13 02:44:04,087 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [157127321] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-13 02:44:04,088 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-13 02:44:04,088 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 5] total 9 [2022-07-13 02:44:04,088 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [338584804] [2022-07-13 02:44:04,088 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-13 02:44:04,089 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-07-13 02:44:04,089 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 02:44:04,090 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-07-13 02:44:04,090 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2022-07-13 02:44:04,090 INFO L87 Difference]: Start difference. First operand 2073 states and 2537 transitions. Second operand has 10 states, 9 states have (on average 47.77777777777778) internal successors, (430), 10 states have internal predecessors, (430), 4 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10) [2022-07-13 02:44:04,352 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 02:44:04,352 INFO L93 Difference]: Finished difference Result 2520 states and 3097 transitions. [2022-07-13 02:44:04,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-07-13 02:44:04,353 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 47.77777777777778) internal successors, (430), 10 states have internal predecessors, (430), 4 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10) Word has length 1175 [2022-07-13 02:44:04,354 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 02:44:04,359 INFO L225 Difference]: With dead ends: 2520 [2022-07-13 02:44:04,359 INFO L226 Difference]: Without dead ends: 2519 [2022-07-13 02:44:04,360 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2355 GetRequests, 2340 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=99, Invalid=173, Unknown=0, NotChecked=0, Total=272 [2022-07-13 02:44:04,360 INFO L413 NwaCegarLoop]: 311 mSDtfsCounter, 590 mSDsluCounter, 668 mSDsCounter, 0 mSdLazyCounter, 138 mSolverCounterSat, 69 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 595 SdHoareTripleChecker+Valid, 979 SdHoareTripleChecker+Invalid, 207 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 69 IncrementalHoareTripleChecker+Valid, 138 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-13 02:44:04,361 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [595 Valid, 979 Invalid, 207 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [69 Valid, 138 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-13 02:44:04,362 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2519 states. [2022-07-13 02:44:04,413 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2519 to 2517. [2022-07-13 02:44:04,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2517 states, 2409 states have (on average 1.190950601909506) internal successors, (2869), 2450 states have internal predecessors, (2869), 100 states have call successors, (100), 6 states have call predecessors, (100), 7 states have return successors, (120), 68 states have call predecessors, (120), 100 states have call successors, (120) [2022-07-13 02:44:04,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2517 states to 2517 states and 3089 transitions. [2022-07-13 02:44:04,419 INFO L78 Accepts]: Start accepts. Automaton has 2517 states and 3089 transitions. Word has length 1175 [2022-07-13 02:44:04,420 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 02:44:04,420 INFO L495 AbstractCegarLoop]: Abstraction has 2517 states and 3089 transitions. [2022-07-13 02:44:04,420 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 47.77777777777778) internal successors, (430), 10 states have internal predecessors, (430), 4 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10) [2022-07-13 02:44:04,420 INFO L276 IsEmpty]: Start isEmpty. Operand 2517 states and 3089 transitions. [2022-07-13 02:44:04,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1329 [2022-07-13 02:44:04,432 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 02:44:04,433 INFO L195 NwaCegarLoop]: trace histogram [30, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 02:44:04,551 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Forceful destruction successful, exit code 0 [2022-07-13 02:44:04,659 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,24 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 02:44:04,660 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-07-13 02:44:04,660 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 02:44:04,660 INFO L85 PathProgramCache]: Analyzing trace with hash 1331651149, now seen corresponding path program 2 times [2022-07-13 02:44:04,660 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 02:44:04,660 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1203622341] [2022-07-13 02:44:04,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 02:44:04,660 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 02:44:05,767 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-13 02:44:05,768 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1747308585] [2022-07-13 02:44:05,768 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-13 02:44:05,768 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 02:44:05,768 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 02:44:05,769 INFO L229 MonitoredProcess]: Starting monitored process 25 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-13 02:44:05,780 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2022-07-13 02:44:15,587 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-07-13 02:44:15,588 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-13 02:44:15,609 INFO L263 TraceCheckSpWp]: Trace formula consists of 146 conjuncts, 5 conjunts are in the unsatisfiable core [2022-07-13 02:44:15,619 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 02:44:15,645 INFO L134 CoverageAnalysis]: Checked inductivity of 5609 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 5589 trivial. 0 not checked. [2022-07-13 02:44:15,645 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-13 02:44:15,646 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 02:44:15,646 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1203622341] [2022-07-13 02:44:15,646 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-13 02:44:15,646 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1747308585] [2022-07-13 02:44:15,646 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1747308585] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 02:44:15,646 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 02:44:15,646 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-13 02:44:15,647 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [299228731] [2022-07-13 02:44:15,647 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 02:44:15,647 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-13 02:44:15,648 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 02:44:15,648 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-13 02:44:15,648 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-13 02:44:15,648 INFO L87 Difference]: Start difference. First operand 2517 states and 3089 transitions. Second operand has 3 states, 3 states have (on average 60.333333333333336) internal successors, (181), 3 states have internal predecessors, (181), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2022-07-13 02:44:15,695 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 02:44:15,695 INFO L93 Difference]: Finished difference Result 2904 states and 3570 transitions. [2022-07-13 02:44:15,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-13 02:44:15,696 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 60.333333333333336) internal successors, (181), 3 states have internal predecessors, (181), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 1328 [2022-07-13 02:44:15,697 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 02:44:15,702 INFO L225 Difference]: With dead ends: 2904 [2022-07-13 02:44:15,702 INFO L226 Difference]: Without dead ends: 2257 [2022-07-13 02:44:15,704 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1327 GetRequests, 1326 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-13 02:44:15,705 INFO L413 NwaCegarLoop]: 317 mSDtfsCounter, 8 mSDsluCounter, 299 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 616 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-13 02:44:15,705 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 616 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-13 02:44:15,706 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2257 states. [2022-07-13 02:44:15,869 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2257 to 2257. [2022-07-13 02:44:15,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2257 states, 2169 states have (on average 1.1839557399723375) internal successors, (2568), 2190 states have internal predecessors, (2568), 80 states have call successors, (80), 6 states have call predecessors, (80), 7 states have return successors, (100), 64 states have call predecessors, (100), 80 states have call successors, (100) [2022-07-13 02:44:15,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2257 states to 2257 states and 2748 transitions. [2022-07-13 02:44:15,875 INFO L78 Accepts]: Start accepts. Automaton has 2257 states and 2748 transitions. Word has length 1328 [2022-07-13 02:44:15,876 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 02:44:15,876 INFO L495 AbstractCegarLoop]: Abstraction has 2257 states and 2748 transitions. [2022-07-13 02:44:15,877 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 60.333333333333336) internal successors, (181), 3 states have internal predecessors, (181), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2022-07-13 02:44:15,877 INFO L276 IsEmpty]: Start isEmpty. Operand 2257 states and 2748 transitions. [2022-07-13 02:44:15,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1389 [2022-07-13 02:44:15,890 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 02:44:15,890 INFO L195 NwaCegarLoop]: trace histogram [30, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 02:44:15,966 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Forceful destruction successful, exit code 0 [2022-07-13 02:44:16,103 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,25 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 02:44:16,104 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-07-13 02:44:16,104 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 02:44:16,104 INFO L85 PathProgramCache]: Analyzing trace with hash 1336558764, now seen corresponding path program 1 times [2022-07-13 02:44:16,104 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 02:44:16,104 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [740249669] [2022-07-13 02:44:16,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 02:44:16,104 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 02:44:17,733 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-13 02:44:17,734 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [85847467] [2022-07-13 02:44:17,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 02:44:17,734 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 02:44:17,734 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 02:44:17,735 INFO L229 MonitoredProcess]: Starting monitored process 26 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-13 02:44:17,736 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2022-07-13 02:44:32,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:44:32,700 INFO L263 TraceCheckSpWp]: Trace formula consists of 28647 conjuncts, 11 conjunts are in the unsatisfiable core [2022-07-13 02:44:32,719 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 02:44:33,675 INFO L134 CoverageAnalysis]: Checked inductivity of 5729 backedges. 0 proven. 586 refuted. 0 times theorem prover too weak. 5143 trivial. 0 not checked. [2022-07-13 02:44:33,675 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-13 02:44:34,504 INFO L134 CoverageAnalysis]: Checked inductivity of 5729 backedges. 0 proven. 562 refuted. 0 times theorem prover too weak. 5167 trivial. 0 not checked. [2022-07-13 02:44:34,504 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 02:44:34,504 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [740249669] [2022-07-13 02:44:34,504 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-13 02:44:34,505 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [85847467] [2022-07-13 02:44:34,505 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [85847467] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-13 02:44:34,505 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-13 02:44:34,505 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 11] total 21 [2022-07-13 02:44:34,505 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1270974532] [2022-07-13 02:44:34,505 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-13 02:44:34,507 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-07-13 02:44:34,507 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 02:44:34,507 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-07-13 02:44:34,507 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=131, Invalid=331, Unknown=0, NotChecked=0, Total=462 [2022-07-13 02:44:34,508 INFO L87 Difference]: Start difference. First operand 2257 states and 2748 transitions. Second operand has 22 states, 21 states have (on average 39.76190476190476) internal successors, (835), 22 states have internal predecessors, (835), 10 states have call successors, (16), 6 states have call predecessors, (16), 6 states have return successors, (16), 10 states have call predecessors, (16), 10 states have call successors, (16) [2022-07-13 02:44:35,061 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 02:44:35,061 INFO L93 Difference]: Finished difference Result 2763 states and 3361 transitions. [2022-07-13 02:44:35,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-07-13 02:44:35,062 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 21 states have (on average 39.76190476190476) internal successors, (835), 22 states have internal predecessors, (835), 10 states have call successors, (16), 6 states have call predecessors, (16), 6 states have return successors, (16), 10 states have call predecessors, (16), 10 states have call successors, (16) Word has length 1388 [2022-07-13 02:44:35,063 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 02:44:35,069 INFO L225 Difference]: With dead ends: 2763 [2022-07-13 02:44:35,070 INFO L226 Difference]: Without dead ends: 2762 [2022-07-13 02:44:35,071 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2793 GetRequests, 2754 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 289 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=549, Invalid=1091, Unknown=0, NotChecked=0, Total=1640 [2022-07-13 02:44:35,071 INFO L413 NwaCegarLoop]: 307 mSDtfsCounter, 1430 mSDsluCounter, 1740 mSDsCounter, 0 mSdLazyCounter, 416 mSolverCounterSat, 275 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1435 SdHoareTripleChecker+Valid, 2047 SdHoareTripleChecker+Invalid, 691 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 275 IncrementalHoareTripleChecker+Valid, 416 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-13 02:44:35,075 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1435 Valid, 2047 Invalid, 691 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [275 Valid, 416 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-13 02:44:35,076 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2762 states. [2022-07-13 02:44:35,143 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2762 to 2761. [2022-07-13 02:44:35,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2761 states, 2637 states have (on average 1.180887372013652) internal successors, (3114), 2688 states have internal predecessors, (3114), 110 states have call successors, (110), 12 states have call predecessors, (110), 13 states have return successors, (130), 70 states have call predecessors, (130), 110 states have call successors, (130) [2022-07-13 02:44:35,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2761 states to 2761 states and 3354 transitions. [2022-07-13 02:44:35,150 INFO L78 Accepts]: Start accepts. Automaton has 2761 states and 3354 transitions. Word has length 1388 [2022-07-13 02:44:35,150 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 02:44:35,150 INFO L495 AbstractCegarLoop]: Abstraction has 2761 states and 3354 transitions. [2022-07-13 02:44:35,151 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 21 states have (on average 39.76190476190476) internal successors, (835), 22 states have internal predecessors, (835), 10 states have call successors, (16), 6 states have call predecessors, (16), 6 states have return successors, (16), 10 states have call predecessors, (16), 10 states have call successors, (16) [2022-07-13 02:44:35,151 INFO L276 IsEmpty]: Start isEmpty. Operand 2761 states and 3354 transitions. [2022-07-13 02:44:35,169 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1767 [2022-07-13 02:44:35,169 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 02:44:35,170 INFO L195 NwaCegarLoop]: trace histogram [30, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 02:44:35,332 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Forceful destruction successful, exit code 0 [2022-07-13 02:44:35,391 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2022-07-13 02:44:35,391 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-07-13 02:44:35,391 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 02:44:35,392 INFO L85 PathProgramCache]: Analyzing trace with hash 1879205676, now seen corresponding path program 2 times [2022-07-13 02:44:35,392 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 02:44:35,392 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1790884346] [2022-07-13 02:44:35,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 02:44:35,392 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 02:44:36,720 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-13 02:44:36,720 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [194507034] [2022-07-13 02:44:36,721 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-13 02:44:36,721 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 02:44:36,721 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 02:44:36,722 INFO L229 MonitoredProcess]: Starting monitored process 27 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-13 02:44:36,723 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Waiting until timeout for monitored process [2022-07-13 02:44:53,627 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-07-13 02:44:53,628 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-13 02:44:53,906 INFO L263 TraceCheckSpWp]: Trace formula consists of 29577 conjuncts, 7 conjunts are in the unsatisfiable core [2022-07-13 02:44:53,925 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 02:44:54,161 INFO L134 CoverageAnalysis]: Checked inductivity of 8498 backedges. 2430 proven. 0 refuted. 0 times theorem prover too weak. 6068 trivial. 0 not checked. [2022-07-13 02:44:54,162 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-13 02:44:54,162 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 02:44:54,162 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1790884346] [2022-07-13 02:44:54,163 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-13 02:44:54,163 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [194507034] [2022-07-13 02:44:54,163 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [194507034] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 02:44:54,163 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 02:44:54,163 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-13 02:44:54,163 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [84772976] [2022-07-13 02:44:54,164 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 02:44:54,164 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-13 02:44:54,164 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 02:44:54,165 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-13 02:44:54,166 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2022-07-13 02:44:54,166 INFO L87 Difference]: Start difference. First operand 2761 states and 3354 transitions. Second operand has 8 states, 8 states have (on average 60.25) internal successors, (482), 8 states have internal predecessors, (482), 7 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 7 states have call predecessors, (10), 7 states have call successors, (10) [2022-07-13 02:44:54,399 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 02:44:54,399 INFO L93 Difference]: Finished difference Result 2761 states and 3354 transitions. [2022-07-13 02:44:54,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-13 02:44:54,400 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 60.25) internal successors, (482), 8 states have internal predecessors, (482), 7 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 7 states have call predecessors, (10), 7 states have call successors, (10) Word has length 1766 [2022-07-13 02:44:54,401 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 02:44:54,401 INFO L225 Difference]: With dead ends: 2761 [2022-07-13 02:44:54,401 INFO L226 Difference]: Without dead ends: 0 [2022-07-13 02:44:54,404 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1765 GetRequests, 1759 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2022-07-13 02:44:54,404 INFO L413 NwaCegarLoop]: 686 mSDtfsCounter, 311 mSDsluCounter, 1651 mSDsCounter, 0 mSdLazyCounter, 155 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 337 SdHoareTripleChecker+Valid, 2337 SdHoareTripleChecker+Invalid, 164 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 155 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-13 02:44:54,408 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [337 Valid, 2337 Invalid, 164 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 155 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-13 02:44:54,409 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-07-13 02:44:54,409 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-07-13 02:44:54,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 02:44:54,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-07-13 02:44:54,409 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 1766 [2022-07-13 02:44:54,409 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 02:44:54,409 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-07-13 02:44:54,410 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 60.25) internal successors, (482), 8 states have internal predecessors, (482), 7 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 7 states have call predecessors, (10), 7 states have call successors, (10) [2022-07-13 02:44:54,410 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-07-13 02:44:54,410 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-07-13 02:44:54,412 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 10 remaining) [2022-07-13 02:44:54,412 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 10 remaining) [2022-07-13 02:44:54,412 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 10 remaining) [2022-07-13 02:44:54,412 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 10 remaining) [2022-07-13 02:44:54,413 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 10 remaining) [2022-07-13 02:44:54,413 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 10 remaining) [2022-07-13 02:44:54,413 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 10 remaining) [2022-07-13 02:44:54,413 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 10 remaining) [2022-07-13 02:44:54,413 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 10 remaining) [2022-07-13 02:44:54,413 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 10 remaining) [2022-07-13 02:44:54,568 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Forceful destruction successful, exit code 0 [2022-07-13 02:44:54,639 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2022-07-13 02:44:54,641 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions.