/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Overflow-32bit-Automizer_Default.epf -i ../sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+nlh-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-05d3305-m [2022-10-16 14:25:26,788 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-16 14:25:26,791 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-16 14:25:26,835 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-16 14:25:26,836 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-16 14:25:26,839 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-16 14:25:26,843 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-16 14:25:26,851 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-16 14:25:26,853 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-16 14:25:26,860 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-16 14:25:26,862 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-16 14:25:26,863 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-16 14:25:26,863 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-16 14:25:26,866 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-16 14:25:26,868 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-16 14:25:26,874 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-16 14:25:26,875 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-16 14:25:26,876 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-16 14:25:26,879 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-16 14:25:26,884 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-16 14:25:26,891 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-16 14:25:26,893 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-16 14:25:26,894 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-16 14:25:26,895 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-16 14:25:26,903 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-16 14:25:26,903 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-16 14:25:26,903 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-16 14:25:26,904 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-16 14:25:26,905 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-16 14:25:26,908 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-16 14:25:26,908 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-16 14:25:26,909 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-16 14:25:26,911 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-16 14:25:26,911 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-16 14:25:26,913 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-16 14:25:26,913 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-16 14:25:26,913 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-16 14:25:26,914 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-16 14:25:26,914 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-16 14:25:26,915 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-16 14:25:26,916 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-16 14:25:26,917 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Overflow-32bit-Automizer_Default.epf [2022-10-16 14:25:26,967 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-16 14:25:26,967 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-16 14:25:26,968 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-16 14:25:26,968 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-16 14:25:26,969 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-16 14:25:26,969 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-16 14:25:26,970 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-16 14:25:26,970 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-16 14:25:26,970 INFO L138 SettingsManager]: * Use SBE=true [2022-10-16 14:25:26,970 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-16 14:25:26,971 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-16 14:25:26,971 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-16 14:25:26,971 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-16 14:25:26,971 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-16 14:25:26,971 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-16 14:25:26,972 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-16 14:25:26,972 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-16 14:25:26,972 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-16 14:25:26,972 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-10-16 14:25:26,972 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-16 14:25:26,973 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-16 14:25:26,973 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-16 14:25:26,973 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-16 14:25:26,973 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-16 14:25:26,973 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-16 14:25:26,974 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-16 14:25:26,974 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 14:25:26,974 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-16 14:25:26,974 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-16 14:25:26,974 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-16 14:25:26,975 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-16 14:25:26,975 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-16 14:25:26,975 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-16 14:25:26,975 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-10-16 14:25:27,314 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-16 14:25:27,344 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-16 14:25:27,347 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-16 14:25:27,349 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-16 14:25:27,349 INFO L275 PluginConnector]: CDTParser initialized [2022-10-16 14:25:27,351 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+nlh-reducer.c [2022-10-16 14:25:27,430 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5fa60522a/7579da4a9af5418f8576d22d91d71c95/FLAGb574f347d [2022-10-16 14:25:28,022 INFO L306 CDTParser]: Found 1 translation units. [2022-10-16 14:25:28,023 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+nlh-reducer.c [2022-10-16 14:25:28,035 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5fa60522a/7579da4a9af5418f8576d22d91d71c95/FLAGb574f347d [2022-10-16 14:25:28,371 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5fa60522a/7579da4a9af5418f8576d22d91d71c95 [2022-10-16 14:25:28,375 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-16 14:25:28,381 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-10-16 14:25:28,383 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-16 14:25:28,383 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-16 14:25:28,387 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-16 14:25:28,387 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 02:25:28" (1/1) ... [2022-10-16 14:25:28,389 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@ce914df and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:25:28, skipping insertion in model container [2022-10-16 14:25:28,389 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 02:25:28" (1/1) ... [2022-10-16 14:25:28,398 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-16 14:25:28,426 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-16 14:25:28,601 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/loop-invgen/apache-get-tag.i.v+nlh-reducer.c[1123,1136] [2022-10-16 14:25:28,602 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/loop-invgen/apache-get-tag.i.v+nlh-reducer.c[1338,1351] [2022-10-16 14:25:28,605 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/loop-invgen/apache-get-tag.i.v+nlh-reducer.c[1654,1667] [2022-10-16 14:25:28,607 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/loop-invgen/apache-get-tag.i.v+nlh-reducer.c[1869,1882] [2022-10-16 14:25:28,615 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/loop-invgen/apache-get-tag.i.v+nlh-reducer.c[2402,2415] [2022-10-16 14:25:28,617 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/loop-invgen/apache-get-tag.i.v+nlh-reducer.c[2617,2630] [2022-10-16 14:25:28,624 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/loop-invgen/apache-get-tag.i.v+nlh-reducer.c[2919,2932] [2022-10-16 14:25:28,626 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/loop-invgen/apache-get-tag.i.v+nlh-reducer.c[3134,3147] [2022-10-16 14:25:28,632 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/loop-invgen/apache-get-tag.i.v+nlh-reducer.c[3404,3417] [2022-10-16 14:25:28,634 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/loop-invgen/apache-get-tag.i.v+nlh-reducer.c[3622,3635] [2022-10-16 14:25:28,639 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/loop-invgen/apache-get-tag.i.v+nlh-reducer.c[4106,4119] [2022-10-16 14:25:28,642 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/loop-invgen/apache-get-tag.i.v+nlh-reducer.c[4324,4337] [2022-10-16 14:25:28,648 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/loop-invgen/apache-get-tag.i.v+nlh-reducer.c[4820,4833] [2022-10-16 14:25:28,658 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/loop-invgen/apache-get-tag.i.v+nlh-reducer.c[5221,5234] [2022-10-16 14:25:28,660 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/loop-invgen/apache-get-tag.i.v+nlh-reducer.c[5439,5452] [2022-10-16 14:25:28,663 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/loop-invgen/apache-get-tag.i.v+nlh-reducer.c[5881,5894] [2022-10-16 14:25:28,665 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/loop-invgen/apache-get-tag.i.v+nlh-reducer.c[6099,6112] [2022-10-16 14:25:28,671 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 14:25:28,688 INFO L203 MainTranslator]: Completed pre-run [2022-10-16 14:25:28,711 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/loop-invgen/apache-get-tag.i.v+nlh-reducer.c[1123,1136] [2022-10-16 14:25:28,719 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/loop-invgen/apache-get-tag.i.v+nlh-reducer.c[1338,1351] [2022-10-16 14:25:28,725 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/loop-invgen/apache-get-tag.i.v+nlh-reducer.c[1654,1667] [2022-10-16 14:25:28,734 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/loop-invgen/apache-get-tag.i.v+nlh-reducer.c[1869,1882] [2022-10-16 14:25:28,740 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/loop-invgen/apache-get-tag.i.v+nlh-reducer.c[2402,2415] [2022-10-16 14:25:28,741 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/loop-invgen/apache-get-tag.i.v+nlh-reducer.c[2617,2630] [2022-10-16 14:25:28,750 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/loop-invgen/apache-get-tag.i.v+nlh-reducer.c[2919,2932] [2022-10-16 14:25:28,751 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/loop-invgen/apache-get-tag.i.v+nlh-reducer.c[3134,3147] [2022-10-16 14:25:28,753 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/loop-invgen/apache-get-tag.i.v+nlh-reducer.c[3404,3417] [2022-10-16 14:25:28,755 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/loop-invgen/apache-get-tag.i.v+nlh-reducer.c[3622,3635] [2022-10-16 14:25:28,762 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/loop-invgen/apache-get-tag.i.v+nlh-reducer.c[4106,4119] [2022-10-16 14:25:28,764 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/loop-invgen/apache-get-tag.i.v+nlh-reducer.c[4324,4337] [2022-10-16 14:25:28,766 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/loop-invgen/apache-get-tag.i.v+nlh-reducer.c[4820,4833] [2022-10-16 14:25:28,770 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/loop-invgen/apache-get-tag.i.v+nlh-reducer.c[5221,5234] [2022-10-16 14:25:28,773 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/loop-invgen/apache-get-tag.i.v+nlh-reducer.c[5439,5452] [2022-10-16 14:25:28,776 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/loop-invgen/apache-get-tag.i.v+nlh-reducer.c[5881,5894] [2022-10-16 14:25:28,778 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/loop-invgen/apache-get-tag.i.v+nlh-reducer.c[6099,6112] [2022-10-16 14:25:28,786 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 14:25:28,802 INFO L208 MainTranslator]: Completed translation [2022-10-16 14:25:28,803 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:25:28 WrapperNode [2022-10-16 14:25:28,803 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-16 14:25:28,804 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-16 14:25:28,805 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-16 14:25:28,805 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-16 14:25:28,813 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:25:28" (1/1) ... [2022-10-16 14:25:28,835 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:25:28" (1/1) ... [2022-10-16 14:25:28,864 INFO L138 Inliner]: procedures = 14, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 239 [2022-10-16 14:25:28,864 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-16 14:25:28,865 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-16 14:25:28,865 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-16 14:25:28,866 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-16 14:25:28,876 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:25:28" (1/1) ... [2022-10-16 14:25:28,876 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:25:28" (1/1) ... [2022-10-16 14:25:28,878 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:25:28" (1/1) ... [2022-10-16 14:25:28,879 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:25:28" (1/1) ... [2022-10-16 14:25:28,884 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:25:28" (1/1) ... [2022-10-16 14:25:28,887 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:25:28" (1/1) ... [2022-10-16 14:25:28,889 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:25:28" (1/1) ... [2022-10-16 14:25:28,890 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:25:28" (1/1) ... [2022-10-16 14:25:28,893 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-16 14:25:28,894 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-16 14:25:28,894 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-16 14:25:28,894 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-16 14:25:28,895 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:25:28" (1/1) ... [2022-10-16 14:25:28,902 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 14:25:28,915 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:25:28,930 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-10-16 14:25:28,953 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-10-16 14:25:28,996 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-16 14:25:28,996 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-16 14:25:28,997 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-16 14:25:28,997 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-16 14:25:29,074 INFO L235 CfgBuilder]: Building ICFG [2022-10-16 14:25:29,077 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-16 14:25:29,443 INFO L276 CfgBuilder]: Performing block encoding [2022-10-16 14:25:29,451 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-16 14:25:29,452 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-10-16 14:25:29,454 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 02:25:29 BoogieIcfgContainer [2022-10-16 14:25:29,454 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-16 14:25:29,456 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-16 14:25:29,457 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-16 14:25:29,460 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-16 14:25:29,461 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 02:25:28" (1/3) ... [2022-10-16 14:25:29,461 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@59850ebd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 02:25:29, skipping insertion in model container [2022-10-16 14:25:29,461 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:25:28" (2/3) ... [2022-10-16 14:25:29,462 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@59850ebd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 02:25:29, skipping insertion in model container [2022-10-16 14:25:29,462 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 02:25:29" (3/3) ... [2022-10-16 14:25:29,463 INFO L112 eAbstractionObserver]: Analyzing ICFG apache-get-tag.i.v+nlh-reducer.c [2022-10-16 14:25:29,485 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-16 14:25:29,485 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 10 error locations. [2022-10-16 14:25:29,547 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-16 14:25:29,556 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@41e09fc6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-16 14:25:29,556 INFO L358 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2022-10-16 14:25:29,561 INFO L276 IsEmpty]: Start isEmpty. Operand has 57 states, 46 states have (on average 1.826086956521739) internal successors, (84), 56 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:25:29,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-10-16 14:25:29,568 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:25:29,569 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-10-16 14:25:29,569 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-16 14:25:29,575 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:25:29,575 INFO L85 PathProgramCache]: Analyzing trace with hash 925604, now seen corresponding path program 1 times [2022-10-16 14:25:29,586 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:25:29,587 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2070146379] [2022-10-16 14:25:29,587 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:25:29,588 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:25:29,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:25:29,780 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:25:29,780 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:25:29,781 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2070146379] [2022-10-16 14:25:29,782 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2070146379] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:25:29,782 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 14:25:29,782 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-16 14:25:29,784 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [414511990] [2022-10-16 14:25:29,785 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:25:29,793 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 14:25:29,793 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:25:29,837 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 14:25:29,839 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 14:25:29,842 INFO L87 Difference]: Start difference. First operand has 57 states, 46 states have (on average 1.826086956521739) internal successors, (84), 56 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:25:29,934 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:25:29,935 INFO L93 Difference]: Finished difference Result 60 states and 86 transitions. [2022-10-16 14:25:29,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 14:25:29,938 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2022-10-16 14:25:29,938 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:25:29,947 INFO L225 Difference]: With dead ends: 60 [2022-10-16 14:25:29,947 INFO L226 Difference]: Without dead ends: 44 [2022-10-16 14:25:29,951 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 14:25:29,955 INFO L413 NwaCegarLoop]: 44 mSDtfsCounter, 62 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 45 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 14:25:29,957 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [62 Valid, 45 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 14:25:29,976 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2022-10-16 14:25:29,993 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 44. [2022-10-16 14:25:29,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44 states, 35 states have (on average 1.3714285714285714) internal successors, (48), 43 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:25:29,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 48 transitions. [2022-10-16 14:25:29,998 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 48 transitions. Word has length 4 [2022-10-16 14:25:29,998 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:25:29,998 INFO L495 AbstractCegarLoop]: Abstraction has 44 states and 48 transitions. [2022-10-16 14:25:29,999 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:25:29,999 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 48 transitions. [2022-10-16 14:25:29,999 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-10-16 14:25:29,999 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:25:30,003 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-10-16 14:25:30,003 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-16 14:25:30,003 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-16 14:25:30,004 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:25:30,004 INFO L85 PathProgramCache]: Analyzing trace with hash 28693763, now seen corresponding path program 1 times [2022-10-16 14:25:30,005 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:25:30,005 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [119103258] [2022-10-16 14:25:30,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:25:30,005 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:25:30,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:25:30,053 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:25:30,054 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:25:30,054 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [119103258] [2022-10-16 14:25:30,054 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [119103258] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:25:30,055 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 14:25:30,055 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-16 14:25:30,055 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [528480167] [2022-10-16 14:25:30,055 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:25:30,057 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 14:25:30,057 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:25:30,058 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 14:25:30,058 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 14:25:30,058 INFO L87 Difference]: Start difference. First operand 44 states and 48 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:25:30,083 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:25:30,083 INFO L93 Difference]: Finished difference Result 44 states and 48 transitions. [2022-10-16 14:25:30,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 14:25:30,084 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 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 5 [2022-10-16 14:25:30,084 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:25:30,085 INFO L225 Difference]: With dead ends: 44 [2022-10-16 14:25:30,085 INFO L226 Difference]: Without dead ends: 43 [2022-10-16 14:25:30,086 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 14:25:30,088 INFO L413 NwaCegarLoop]: 45 mSDtfsCounter, 0 mSDsluCounter, 34 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 79 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 14:25:30,089 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 79 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 14:25:30,090 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2022-10-16 14:25:30,095 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 43. [2022-10-16 14:25:30,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43 states, 35 states have (on average 1.3428571428571427) internal successors, (47), 42 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:25:30,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 47 transitions. [2022-10-16 14:25:30,097 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 47 transitions. Word has length 5 [2022-10-16 14:25:30,097 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:25:30,097 INFO L495 AbstractCegarLoop]: Abstraction has 43 states and 47 transitions. [2022-10-16 14:25:30,098 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:25:30,098 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 47 transitions. [2022-10-16 14:25:30,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-10-16 14:25:30,098 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:25:30,099 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:25:30,099 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-16 14:25:30,099 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)] === [2022-10-16 14:25:30,100 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:25:30,100 INFO L85 PathProgramCache]: Analyzing trace with hash -1581815027, now seen corresponding path program 1 times [2022-10-16 14:25:30,100 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:25:30,101 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1696356375] [2022-10-16 14:25:30,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:25:30,101 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:25:30,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:25:30,199 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:25:30,199 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:25:30,200 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1696356375] [2022-10-16 14:25:30,200 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1696356375] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:25:30,200 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 14:25:30,200 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-16 14:25:30,201 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1476045162] [2022-10-16 14:25:30,201 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:25:30,202 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 14:25:30,202 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:25:30,203 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 14:25:30,203 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 14:25:30,203 INFO L87 Difference]: Start difference. First operand 43 states and 47 transitions. Second operand has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:25:30,303 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:25:30,303 INFO L93 Difference]: Finished difference Result 55 states and 59 transitions. [2022-10-16 14:25:30,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 14:25:30,304 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2022-10-16 14:25:30,304 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:25:30,307 INFO L225 Difference]: With dead ends: 55 [2022-10-16 14:25:30,307 INFO L226 Difference]: Without dead ends: 51 [2022-10-16 14:25:30,308 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 14:25:30,311 INFO L413 NwaCegarLoop]: 36 mSDtfsCounter, 6 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 43 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 14:25:30,313 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 43 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 14:25:30,314 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2022-10-16 14:25:30,326 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 51. [2022-10-16 14:25:30,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51 states, 43 states have (on average 1.2790697674418605) internal successors, (55), 50 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:25:30,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 55 transitions. [2022-10-16 14:25:30,329 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 55 transitions. Word has length 11 [2022-10-16 14:25:30,329 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:25:30,329 INFO L495 AbstractCegarLoop]: Abstraction has 51 states and 55 transitions. [2022-10-16 14:25:30,330 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:25:30,330 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 55 transitions. [2022-10-16 14:25:30,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-10-16 14:25:30,331 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:25:30,331 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:25:30,331 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-10-16 14:25:30,332 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-16 14:25:30,332 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:25:30,332 INFO L85 PathProgramCache]: Analyzing trace with hash 1245922236, now seen corresponding path program 1 times [2022-10-16 14:25:30,333 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:25:30,333 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [8951069] [2022-10-16 14:25:30,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:25:30,333 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:25:30,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:25:30,478 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:25:30,479 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:25:30,479 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [8951069] [2022-10-16 14:25:30,479 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [8951069] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:25:30,479 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 14:25:30,480 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 14:25:30,480 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1376603169] [2022-10-16 14:25:30,480 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:25:30,481 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 14:25:30,481 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:25:30,481 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 14:25:30,482 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-10-16 14:25:30,482 INFO L87 Difference]: Start difference. First operand 51 states and 55 transitions. Second operand has 4 states, 3 states have (on average 6.0) internal successors, (18), 4 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:25:30,588 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:25:30,588 INFO L93 Difference]: Finished difference Result 80 states and 91 transitions. [2022-10-16 14:25:30,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 14:25:30,589 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 6.0) internal successors, (18), 4 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2022-10-16 14:25:30,589 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:25:30,592 INFO L225 Difference]: With dead ends: 80 [2022-10-16 14:25:30,592 INFO L226 Difference]: Without dead ends: 76 [2022-10-16 14:25:30,592 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-10-16 14:25:30,594 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 41 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 31 SdHoareTripleChecker+Invalid, 90 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 14:25:30,595 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 31 Invalid, 90 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 14:25:30,596 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2022-10-16 14:25:30,605 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 72. [2022-10-16 14:25:30,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 72 states, 64 states have (on average 1.234375) internal successors, (79), 71 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:25:30,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 79 transitions. [2022-10-16 14:25:30,608 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 79 transitions. Word has length 18 [2022-10-16 14:25:30,608 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:25:30,608 INFO L495 AbstractCegarLoop]: Abstraction has 72 states and 79 transitions. [2022-10-16 14:25:30,609 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 6.0) internal successors, (18), 4 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:25:30,609 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 79 transitions. [2022-10-16 14:25:30,610 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-10-16 14:25:30,610 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:25:30,610 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:25:30,610 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-10-16 14:25:30,611 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-16 14:25:30,611 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:25:30,612 INFO L85 PathProgramCache]: Analyzing trace with hash -31116247, now seen corresponding path program 1 times [2022-10-16 14:25:30,612 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:25:30,612 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [974456935] [2022-10-16 14:25:30,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:25:30,613 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:25:30,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:25:30,735 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:25:30,736 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:25:30,736 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [974456935] [2022-10-16 14:25:30,736 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [974456935] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:25:30,738 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 14:25:30,739 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 14:25:30,739 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1951606037] [2022-10-16 14:25:30,739 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:25:30,742 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 14:25:30,742 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:25:30,743 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 14:25:30,743 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 14:25:30,743 INFO L87 Difference]: Start difference. First operand 72 states and 79 transitions. Second operand has 4 states, 3 states have (on average 6.333333333333333) internal successors, (19), 4 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:25:30,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:25:30,850 INFO L93 Difference]: Finished difference Result 72 states and 79 transitions. [2022-10-16 14:25:30,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 14:25:30,851 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 6.333333333333333) internal successors, (19), 4 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2022-10-16 14:25:30,852 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:25:30,856 INFO L225 Difference]: With dead ends: 72 [2022-10-16 14:25:30,856 INFO L226 Difference]: Without dead ends: 68 [2022-10-16 14:25:30,858 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 14:25:30,860 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 28 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 79 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 25 SdHoareTripleChecker+Invalid, 87 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 79 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 14:25:30,861 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 25 Invalid, 87 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 79 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 14:25:30,867 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2022-10-16 14:25:30,878 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 68. [2022-10-16 14:25:30,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68 states, 64 states have (on average 1.171875) internal successors, (75), 67 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:25:30,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 75 transitions. [2022-10-16 14:25:30,880 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 75 transitions. Word has length 19 [2022-10-16 14:25:30,880 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:25:30,880 INFO L495 AbstractCegarLoop]: Abstraction has 68 states and 75 transitions. [2022-10-16 14:25:30,881 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 6.333333333333333) internal successors, (19), 4 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:25:30,881 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 75 transitions. [2022-10-16 14:25:30,883 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-10-16 14:25:30,887 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:25:30,887 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] [2022-10-16 14:25:30,887 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-10-16 14:25:30,887 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-16 14:25:30,888 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:25:30,888 INFO L85 PathProgramCache]: Analyzing trace with hash 428615026, now seen corresponding path program 1 times [2022-10-16 14:25:30,888 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:25:30,889 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1629712025] [2022-10-16 14:25:30,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:25:30,889 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:25:30,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:25:31,006 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:25:31,006 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:25:31,006 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1629712025] [2022-10-16 14:25:31,007 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1629712025] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:25:31,007 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 14:25:31,007 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-16 14:25:31,007 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1427969829] [2022-10-16 14:25:31,007 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:25:31,008 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-16 14:25:31,008 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:25:31,009 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-16 14:25:31,009 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-10-16 14:25:31,009 INFO L87 Difference]: Start difference. First operand 68 states and 75 transitions. Second operand has 5 states, 4 states have (on average 6.0) internal successors, (24), 5 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:25:31,142 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:25:31,142 INFO L93 Difference]: Finished difference Result 102 states and 112 transitions. [2022-10-16 14:25:31,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 14:25:31,143 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 6.0) internal successors, (24), 5 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2022-10-16 14:25:31,143 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:25:31,144 INFO L225 Difference]: With dead ends: 102 [2022-10-16 14:25:31,144 INFO L226 Difference]: Without dead ends: 98 [2022-10-16 14:25:31,145 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-10-16 14:25:31,146 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 81 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 105 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 81 SdHoareTripleChecker+Valid, 37 SdHoareTripleChecker+Invalid, 116 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 105 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 14:25:31,147 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [81 Valid, 37 Invalid, 116 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 105 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 14:25:31,148 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2022-10-16 14:25:31,156 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 94. [2022-10-16 14:25:31,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 94 states, 90 states have (on average 1.1555555555555554) internal successors, (104), 93 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) [2022-10-16 14:25:31,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 104 transitions. [2022-10-16 14:25:31,158 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 104 transitions. Word has length 24 [2022-10-16 14:25:31,159 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:25:31,159 INFO L495 AbstractCegarLoop]: Abstraction has 94 states and 104 transitions. [2022-10-16 14:25:31,159 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 6.0) internal successors, (24), 5 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:25:31,159 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 104 transitions. [2022-10-16 14:25:31,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-10-16 14:25:31,161 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:25:31,161 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:25:31,161 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-10-16 14:25:31,162 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-16 14:25:31,162 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:25:31,163 INFO L85 PathProgramCache]: Analyzing trace with hash -194120132, now seen corresponding path program 1 times [2022-10-16 14:25:31,163 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:25:31,163 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1993173213] [2022-10-16 14:25:31,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:25:31,163 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:25:31,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:25:31,320 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:25:31,321 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:25:31,321 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1993173213] [2022-10-16 14:25:31,321 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1993173213] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:25:31,321 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [345260539] [2022-10-16 14:25:31,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:25:31,322 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:25:31,322 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:25:31,329 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 14:25:31,330 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-10-16 14:25:31,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:25:31,419 INFO L263 TraceCheckSpWp]: Trace formula consists of 136 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-16 14:25:31,426 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:25:31,532 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:25:31,533 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:25:31,640 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:25:31,641 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [345260539] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:25:31,641 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:25:31,641 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2022-10-16 14:25:31,641 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1405155008] [2022-10-16 14:25:31,642 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:25:31,642 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-10-16 14:25:31,642 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:25:31,643 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-10-16 14:25:31,643 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=55, Unknown=0, NotChecked=0, Total=110 [2022-10-16 14:25:31,644 INFO L87 Difference]: Start difference. First operand 94 states and 104 transitions. Second operand has 11 states, 10 states have (on average 7.0) internal successors, (70), 11 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:25:31,920 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:25:31,921 INFO L93 Difference]: Finished difference Result 228 states and 269 transitions. [2022-10-16 14:25:31,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-10-16 14:25:31,921 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 7.0) internal successors, (70), 11 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2022-10-16 14:25:31,922 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:25:31,923 INFO L225 Difference]: With dead ends: 228 [2022-10-16 14:25:31,923 INFO L226 Difference]: Without dead ends: 224 [2022-10-16 14:25:31,924 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=55, Invalid=55, Unknown=0, NotChecked=0, Total=110 [2022-10-16 14:25:31,925 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 432 mSDsluCounter, 56 mSDsCounter, 0 mSdLazyCounter, 239 mSolverCounterSat, 80 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 432 SdHoareTripleChecker+Valid, 73 SdHoareTripleChecker+Invalid, 319 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 80 IncrementalHoareTripleChecker+Valid, 239 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-16 14:25:31,925 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [432 Valid, 73 Invalid, 319 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [80 Valid, 239 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-16 14:25:31,926 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 224 states. [2022-10-16 14:25:31,941 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 224 to 224. [2022-10-16 14:25:31,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 224 states, 220 states have (on average 1.1318181818181818) internal successors, (249), 223 states have internal predecessors, (249), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:25:31,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 224 states to 224 states and 249 transitions. [2022-10-16 14:25:31,944 INFO L78 Accepts]: Start accepts. Automaton has 224 states and 249 transitions. Word has length 31 [2022-10-16 14:25:31,944 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:25:31,944 INFO L495 AbstractCegarLoop]: Abstraction has 224 states and 249 transitions. [2022-10-16 14:25:31,944 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 7.0) internal successors, (70), 11 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:25:31,945 INFO L276 IsEmpty]: Start isEmpty. Operand 224 states and 249 transitions. [2022-10-16 14:25:31,947 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-10-16 14:25:31,947 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:25:31,948 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:25:31,977 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-10-16 14:25:32,161 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:25:32,162 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-16 14:25:32,163 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:25:32,164 INFO L85 PathProgramCache]: Analyzing trace with hash -1932072974, now seen corresponding path program 1 times [2022-10-16 14:25:32,164 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:25:32,164 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1022450806] [2022-10-16 14:25:32,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:25:32,165 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:25:32,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:25:32,452 INFO L134 CoverageAnalysis]: Checked inductivity of 75 backedges. 0 proven. 75 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:25:32,452 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:25:32,453 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1022450806] [2022-10-16 14:25:32,453 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1022450806] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:25:32,453 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [972015714] [2022-10-16 14:25:32,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:25:32,453 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:25:32,454 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:25:32,455 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 14:25:32,471 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-10-16 14:25:32,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:25:32,540 INFO L263 TraceCheckSpWp]: Trace formula consists of 241 conjuncts, 10 conjunts are in the unsatisfiable core [2022-10-16 14:25:32,543 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:25:32,654 INFO L134 CoverageAnalysis]: Checked inductivity of 75 backedges. 0 proven. 75 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:25:32,655 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:25:32,849 INFO L134 CoverageAnalysis]: Checked inductivity of 75 backedges. 0 proven. 75 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:25:32,849 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [972015714] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:25:32,850 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:25:32,850 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 20 [2022-10-16 14:25:32,850 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [154913214] [2022-10-16 14:25:32,850 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:25:32,851 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-10-16 14:25:32,851 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:25:32,852 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-10-16 14:25:32,852 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=210, Invalid=210, Unknown=0, NotChecked=0, Total=420 [2022-10-16 14:25:32,852 INFO L87 Difference]: Start difference. First operand 224 states and 249 transitions. Second operand has 21 states, 20 states have (on average 6.7) internal successors, (134), 21 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:25:33,456 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:25:33,457 INFO L93 Difference]: Finished difference Result 488 states and 579 transitions. [2022-10-16 14:25:33,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-10-16 14:25:33,457 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 20 states have (on average 6.7) internal successors, (134), 21 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 63 [2022-10-16 14:25:33,458 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:25:33,460 INFO L225 Difference]: With dead ends: 488 [2022-10-16 14:25:33,460 INFO L226 Difference]: Without dead ends: 484 [2022-10-16 14:25:33,461 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 134 GetRequests, 115 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=210, Invalid=210, Unknown=0, NotChecked=0, Total=420 [2022-10-16 14:25:33,462 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 1003 mSDsluCounter, 116 mSDsCounter, 0 mSdLazyCounter, 463 mSolverCounterSat, 189 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1003 SdHoareTripleChecker+Valid, 133 SdHoareTripleChecker+Invalid, 652 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 189 IncrementalHoareTripleChecker+Valid, 463 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-10-16 14:25:33,462 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1003 Valid, 133 Invalid, 652 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [189 Valid, 463 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-10-16 14:25:33,464 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 484 states. [2022-10-16 14:25:33,487 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 484 to 484. [2022-10-16 14:25:33,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 484 states, 480 states have (on average 1.1229166666666666) internal successors, (539), 483 states have internal predecessors, (539), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:25:33,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 484 states to 484 states and 539 transitions. [2022-10-16 14:25:33,490 INFO L78 Accepts]: Start accepts. Automaton has 484 states and 539 transitions. Word has length 63 [2022-10-16 14:25:33,491 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:25:33,491 INFO L495 AbstractCegarLoop]: Abstraction has 484 states and 539 transitions. [2022-10-16 14:25:33,491 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 20 states have (on average 6.7) internal successors, (134), 21 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:25:33,492 INFO L276 IsEmpty]: Start isEmpty. Operand 484 states and 539 transitions. [2022-10-16 14:25:33,498 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2022-10-16 14:25:33,498 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:25:33,498 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:25:33,535 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-10-16 14:25:33,713 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,SelfDestructingSolverStorable7 [2022-10-16 14:25:33,714 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-16 14:25:33,715 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:25:33,715 INFO L85 PathProgramCache]: Analyzing trace with hash 586966386, now seen corresponding path program 2 times [2022-10-16 14:25:33,716 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:25:33,716 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [183987643] [2022-10-16 14:25:33,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:25:33,716 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:25:33,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:25:34,501 INFO L134 CoverageAnalysis]: Checked inductivity of 460 backedges. 0 proven. 460 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:25:34,501 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:25:34,502 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [183987643] [2022-10-16 14:25:34,502 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [183987643] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:25:34,502 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [69772372] [2022-10-16 14:25:34,502 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-16 14:25:34,502 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:25:34,503 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:25:34,505 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 14:25:34,513 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-10-16 14:25:34,577 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-10-16 14:25:34,577 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 14:25:34,579 INFO L263 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 9 conjunts are in the unsatisfiable core [2022-10-16 14:25:34,583 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:25:34,838 INFO L134 CoverageAnalysis]: Checked inductivity of 460 backedges. 16 proven. 16 refuted. 0 times theorem prover too weak. 428 trivial. 0 not checked. [2022-10-16 14:25:34,839 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:25:35,094 INFO L134 CoverageAnalysis]: Checked inductivity of 460 backedges. 0 proven. 32 refuted. 0 times theorem prover too weak. 428 trivial. 0 not checked. [2022-10-16 14:25:35,094 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [69772372] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:25:35,094 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:25:35,095 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 6, 6] total 29 [2022-10-16 14:25:35,095 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1993535528] [2022-10-16 14:25:35,095 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:25:35,096 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-10-16 14:25:35,096 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:25:35,097 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-10-16 14:25:35,097 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=318, Invalid=552, Unknown=0, NotChecked=0, Total=870 [2022-10-16 14:25:35,098 INFO L87 Difference]: Start difference. First operand 484 states and 539 transitions. Second operand has 30 states, 29 states have (on average 6.413793103448276) internal successors, (186), 30 states have internal predecessors, (186), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:25:38,164 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:25:38,164 INFO L93 Difference]: Finished difference Result 759 states and 868 transitions. [2022-10-16 14:25:38,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 87 states. [2022-10-16 14:25:38,165 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 29 states have (on average 6.413793103448276) internal successors, (186), 30 states have internal predecessors, (186), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 128 [2022-10-16 14:25:38,165 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:25:38,166 INFO L225 Difference]: With dead ends: 759 [2022-10-16 14:25:38,167 INFO L226 Difference]: Without dead ends: 176 [2022-10-16 14:25:38,175 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 356 GetRequests, 245 SyntacticMatches, 1 SemanticMatches, 110 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4029 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=3668, Invalid=8764, Unknown=0, NotChecked=0, Total=12432 [2022-10-16 14:25:38,176 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 3038 mSDsluCounter, 150 mSDsCounter, 0 mSdLazyCounter, 590 mSolverCounterSat, 561 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3038 SdHoareTripleChecker+Valid, 164 SdHoareTripleChecker+Invalid, 1151 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 561 IncrementalHoareTripleChecker+Valid, 590 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-10-16 14:25:38,176 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3038 Valid, 164 Invalid, 1151 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [561 Valid, 590 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-10-16 14:25:38,177 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 176 states. [2022-10-16 14:25:38,185 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 176 to 176. [2022-10-16 14:25:38,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 176 states, 173 states have (on average 1.023121387283237) internal successors, (177), 175 states have internal predecessors, (177), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:25:38,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 176 states to 176 states and 177 transitions. [2022-10-16 14:25:38,187 INFO L78 Accepts]: Start accepts. Automaton has 176 states and 177 transitions. Word has length 128 [2022-10-16 14:25:38,187 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:25:38,187 INFO L495 AbstractCegarLoop]: Abstraction has 176 states and 177 transitions. [2022-10-16 14:25:38,188 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 29 states have (on average 6.413793103448276) internal successors, (186), 30 states have internal predecessors, (186), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:25:38,188 INFO L276 IsEmpty]: Start isEmpty. Operand 176 states and 177 transitions. [2022-10-16 14:25:38,191 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2022-10-16 14:25:38,191 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:25:38,191 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 20, 19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:25:38,242 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-10-16 14:25:38,406 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:25:38,406 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-16 14:25:38,407 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:25:38,407 INFO L85 PathProgramCache]: Analyzing trace with hash 413266324, now seen corresponding path program 1 times [2022-10-16 14:25:38,407 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:25:38,407 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [139240395] [2022-10-16 14:25:38,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:25:38,408 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:25:38,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:25:39,399 INFO L134 CoverageAnalysis]: Checked inductivity of 1292 backedges. 0 proven. 1292 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:25:39,399 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:25:39,399 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [139240395] [2022-10-16 14:25:39,399 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [139240395] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:25:39,399 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1662139611] [2022-10-16 14:25:39,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:25:39,400 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:25:39,400 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:25:39,401 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 14:25:39,410 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-10-16 14:25:39,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:25:39,538 INFO L263 TraceCheckSpWp]: Trace formula consists of 632 conjuncts, 23 conjunts are in the unsatisfiable core [2022-10-16 14:25:39,544 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:25:39,729 INFO L134 CoverageAnalysis]: Checked inductivity of 1292 backedges. 0 proven. 1292 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:25:39,729 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:25:40,521 INFO L134 CoverageAnalysis]: Checked inductivity of 1292 backedges. 0 proven. 1292 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:25:40,522 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1662139611] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:25:40,522 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:25:40,522 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 23, 23] total 46 [2022-10-16 14:25:40,522 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [577297940] [2022-10-16 14:25:40,522 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:25:40,523 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 47 states [2022-10-16 14:25:40,523 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:25:40,524 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 47 interpolants. [2022-10-16 14:25:40,525 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1081, Invalid=1081, Unknown=0, NotChecked=0, Total=2162 [2022-10-16 14:25:40,525 INFO L87 Difference]: Start difference. First operand 176 states and 177 transitions. Second operand has 47 states, 46 states have (on average 7.043478260869565) internal successors, (324), 47 states have internal predecessors, (324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:25:41,260 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:25:41,261 INFO L93 Difference]: Finished difference Result 593 states and 660 transitions. [2022-10-16 14:25:41,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2022-10-16 14:25:41,262 INFO L78 Accepts]: Start accepts. Automaton has has 47 states, 46 states have (on average 7.043478260869565) internal successors, (324), 47 states have internal predecessors, (324), 0 states have call successors, (0), 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 158 [2022-10-16 14:25:41,262 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:25:41,264 INFO L225 Difference]: With dead ends: 593 [2022-10-16 14:25:41,264 INFO L226 Difference]: Without dead ends: 337 [2022-10-16 14:25:41,266 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 337 GetRequests, 292 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 84 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=1081, Invalid=1081, Unknown=0, NotChecked=0, Total=2162 [2022-10-16 14:25:41,267 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 1105 mSDsluCounter, 109 mSDsCounter, 0 mSdLazyCounter, 569 mSolverCounterSat, 155 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1105 SdHoareTripleChecker+Valid, 121 SdHoareTripleChecker+Invalid, 724 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 155 IncrementalHoareTripleChecker+Valid, 569 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-10-16 14:25:41,267 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1105 Valid, 121 Invalid, 724 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [155 Valid, 569 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-10-16 14:25:41,268 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 337 states. [2022-10-16 14:25:41,278 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 337 to 337. [2022-10-16 14:25:41,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 337 states, 334 states have (on average 1.0119760479041917) internal successors, (338), 336 states have internal predecessors, (338), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:25:41,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 337 states to 337 states and 338 transitions. [2022-10-16 14:25:41,281 INFO L78 Accepts]: Start accepts. Automaton has 337 states and 338 transitions. Word has length 158 [2022-10-16 14:25:41,281 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:25:41,281 INFO L495 AbstractCegarLoop]: Abstraction has 337 states and 338 transitions. [2022-10-16 14:25:41,281 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 47 states, 46 states have (on average 7.043478260869565) internal successors, (324), 47 states have internal predecessors, (324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:25:41,282 INFO L276 IsEmpty]: Start isEmpty. Operand 337 states and 338 transitions. [2022-10-16 14:25:41,285 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 320 [2022-10-16 14:25:41,285 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:25:41,286 INFO L195 NwaCegarLoop]: trace histogram [43, 43, 43, 43, 42, 42, 42, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:25:41,323 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-10-16 14:25:41,501 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:25:41,502 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-16 14:25:41,503 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:25:41,503 INFO L85 PathProgramCache]: Analyzing trace with hash -778471923, now seen corresponding path program 2 times [2022-10-16 14:25:41,503 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:25:41,504 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1616989806] [2022-10-16 14:25:41,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:25:41,504 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:25:41,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:25:44,697 INFO L134 CoverageAnalysis]: Checked inductivity of 6237 backedges. 0 proven. 6237 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:25:44,698 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:25:44,698 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1616989806] [2022-10-16 14:25:44,698 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1616989806] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:25:44,698 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [11664256] [2022-10-16 14:25:44,698 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-16 14:25:44,698 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:25:44,699 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:25:44,700 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 14:25:44,705 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-10-16 14:25:44,794 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-10-16 14:25:44,794 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 14:25:44,796 INFO L263 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 9 conjunts are in the unsatisfiable core [2022-10-16 14:25:44,803 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:25:45,319 INFO L134 CoverageAnalysis]: Checked inductivity of 6237 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6237 trivial. 0 not checked. [2022-10-16 14:25:45,320 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 14:25:45,320 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [11664256] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:25:45,320 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 14:25:45,320 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [46] total 51 [2022-10-16 14:25:45,320 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [342896689] [2022-10-16 14:25:45,321 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:25:45,321 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-10-16 14:25:45,321 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:25:45,322 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-10-16 14:25:45,323 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1139, Invalid=1513, Unknown=0, NotChecked=0, Total=2652 [2022-10-16 14:25:45,323 INFO L87 Difference]: Start difference. First operand 337 states and 338 transitions. Second operand has 7 states, 6 states have (on average 4.666666666666667) internal successors, (28), 7 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:25:45,557 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:25:45,557 INFO L93 Difference]: Finished difference Result 337 states and 338 transitions. [2022-10-16 14:25:45,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-10-16 14:25:45,558 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 4.666666666666667) internal successors, (28), 7 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 319 [2022-10-16 14:25:45,558 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:25:45,560 INFO L225 Difference]: With dead ends: 337 [2022-10-16 14:25:45,560 INFO L226 Difference]: Without dead ends: 325 [2022-10-16 14:25:45,562 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 369 GetRequests, 314 SyntacticMatches, 0 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 184 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=1174, Invalid=2018, Unknown=0, NotChecked=0, Total=3192 [2022-10-16 14:25:45,563 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 51 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 17 SdHoareTripleChecker+Invalid, 76 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 68 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 14:25:45,563 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [51 Valid, 17 Invalid, 76 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 14:25:45,564 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 325 states. [2022-10-16 14:25:45,573 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 325 to 325. [2022-10-16 14:25:45,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 325 states, 323 states have (on average 1.0061919504643964) internal successors, (325), 324 states have internal predecessors, (325), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:25:45,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 325 states to 325 states and 325 transitions. [2022-10-16 14:25:45,576 INFO L78 Accepts]: Start accepts. Automaton has 325 states and 325 transitions. Word has length 319 [2022-10-16 14:25:45,576 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:25:45,576 INFO L495 AbstractCegarLoop]: Abstraction has 325 states and 325 transitions. [2022-10-16 14:25:45,577 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 4.666666666666667) internal successors, (28), 7 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:25:45,577 INFO L276 IsEmpty]: Start isEmpty. Operand 325 states and 325 transitions. [2022-10-16 14:25:45,581 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 320 [2022-10-16 14:25:45,581 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:25:45,582 INFO L195 NwaCegarLoop]: trace histogram [44, 44, 44, 44, 43, 43, 43, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:25:45,619 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2022-10-16 14:25:45,795 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2022-10-16 14:25:45,795 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-16 14:25:45,796 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:25:45,796 INFO L85 PathProgramCache]: Analyzing trace with hash -1738348107, now seen corresponding path program 1 times [2022-10-16 14:25:45,796 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:25:45,796 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [41143201] [2022-10-16 14:25:45,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:25:45,797 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:25:45,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:25:48,748 INFO L134 CoverageAnalysis]: Checked inductivity of 6536 backedges. 0 proven. 6536 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:25:48,748 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:25:48,748 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [41143201] [2022-10-16 14:25:48,749 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [41143201] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:25:48,749 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1521712381] [2022-10-16 14:25:48,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:25:48,749 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:25:48,749 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:25:48,751 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 14:25:48,771 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-10-16 14:25:48,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:25:48,983 INFO L263 TraceCheckSpWp]: Trace formula consists of 1253 conjuncts, 46 conjunts are in the unsatisfiable core [2022-10-16 14:25:48,991 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:25:49,387 INFO L134 CoverageAnalysis]: Checked inductivity of 6536 backedges. 0 proven. 6536 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:25:49,387 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:25:52,346 INFO L134 CoverageAnalysis]: Checked inductivity of 6536 backedges. 0 proven. 6536 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:25:52,346 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1521712381] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:25:52,346 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:25:52,346 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [46, 46, 46] total 92 [2022-10-16 14:25:52,347 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [293540112] [2022-10-16 14:25:52,347 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:25:52,348 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 93 states [2022-10-16 14:25:52,348 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:25:52,350 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 93 interpolants. [2022-10-16 14:25:52,353 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=4278, Invalid=4278, Unknown=0, NotChecked=0, Total=8556 [2022-10-16 14:25:52,353 INFO L87 Difference]: Start difference. First operand 325 states and 325 transitions. Second operand has 93 states, 92 states have (on average 7.021739130434782) internal successors, (646), 93 states have internal predecessors, (646), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:25:53,450 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:25:53,450 INFO L93 Difference]: Finished difference Result 833 states and 923 transitions. [2022-10-16 14:25:53,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 92 states. [2022-10-16 14:25:53,451 INFO L78 Accepts]: Start accepts. Automaton has has 93 states, 92 states have (on average 7.021739130434782) internal successors, (646), 93 states have internal predecessors, (646), 0 states have call successors, (0), 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 319 [2022-10-16 14:25:53,451 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:25:53,454 INFO L225 Difference]: With dead ends: 833 [2022-10-16 14:25:53,454 INFO L226 Difference]: Without dead ends: 647 [2022-10-16 14:25:53,456 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 682 GetRequests, 591 SyntacticMatches, 0 SemanticMatches, 91 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 176 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=4278, Invalid=4278, Unknown=0, NotChecked=0, Total=8556 [2022-10-16 14:25:53,457 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 1409 mSDsluCounter, 146 mSDsCounter, 0 mSdLazyCounter, 722 mSolverCounterSat, 94 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1409 SdHoareTripleChecker+Valid, 156 SdHoareTripleChecker+Invalid, 816 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 94 IncrementalHoareTripleChecker+Valid, 722 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-10-16 14:25:53,457 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1409 Valid, 156 Invalid, 816 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [94 Valid, 722 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-10-16 14:25:53,458 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 647 states. [2022-10-16 14:25:53,476 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 647 to 647. [2022-10-16 14:25:53,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 647 states, 645 states have (on average 1.0031007751937984) internal successors, (647), 646 states have internal predecessors, (647), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:25:53,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 647 states to 647 states and 647 transitions. [2022-10-16 14:25:53,479 INFO L78 Accepts]: Start accepts. Automaton has 647 states and 647 transitions. Word has length 319 [2022-10-16 14:25:53,480 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:25:53,480 INFO L495 AbstractCegarLoop]: Abstraction has 647 states and 647 transitions. [2022-10-16 14:25:53,480 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 93 states, 92 states have (on average 7.021739130434782) internal successors, (646), 93 states have internal predecessors, (646), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:25:53,481 INFO L276 IsEmpty]: Start isEmpty. Operand 647 states and 647 transitions. [2022-10-16 14:25:53,498 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 642 [2022-10-16 14:25:53,499 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:25:53,499 INFO L195 NwaCegarLoop]: trace histogram [90, 90, 90, 90, 89, 89, 89, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:25:53,538 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-10-16 14:25:53,713 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:25:53,714 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-16 14:25:53,715 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:25:53,715 INFO L85 PathProgramCache]: Analyzing trace with hash 962529941, now seen corresponding path program 2 times [2022-10-16 14:25:53,716 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:25:53,716 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [854787827] [2022-10-16 14:25:53,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:25:53,717 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:25:54,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:26:03,656 INFO L134 CoverageAnalysis]: Checked inductivity of 27857 backedges. 0 proven. 27857 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:26:03,656 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:26:03,656 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [854787827] [2022-10-16 14:26:03,656 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [854787827] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:26:03,656 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [950879943] [2022-10-16 14:26:03,656 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-16 14:26:03,657 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:26:03,657 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:26:03,658 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 14:26:03,673 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-10-16 14:26:03,789 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-10-16 14:26:03,790 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 14:26:03,791 INFO L263 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 9 conjunts are in the unsatisfiable core [2022-10-16 14:26:03,801 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:26:04,825 INFO L134 CoverageAnalysis]: Checked inductivity of 27857 backedges. 89 proven. 0 refuted. 0 times theorem prover too weak. 27768 trivial. 0 not checked. [2022-10-16 14:26:04,825 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 14:26:04,825 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [950879943] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:26:04,825 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 14:26:04,826 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [92] total 97 [2022-10-16 14:26:04,826 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2051360553] [2022-10-16 14:26:04,826 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:26:04,827 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-10-16 14:26:04,827 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:26:04,827 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-10-16 14:26:04,830 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=4382, Invalid=5124, Unknown=0, NotChecked=0, Total=9506 [2022-10-16 14:26:04,830 INFO L87 Difference]: Start difference. First operand 647 states and 647 transitions. Second operand has 7 states, 6 states have (on average 3.6666666666666665) internal successors, (22), 7 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:26:05,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:26:05,167 INFO L93 Difference]: Finished difference Result 647 states and 647 transitions. [2022-10-16 14:26:05,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-10-16 14:26:05,168 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 3.6666666666666665) internal successors, (22), 7 states have internal predecessors, (22), 0 states have call successors, (0), 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 641 [2022-10-16 14:26:05,170 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:26:05,173 INFO L225 Difference]: With dead ends: 647 [2022-10-16 14:26:05,173 INFO L226 Difference]: Without dead ends: 642 [2022-10-16 14:26:05,178 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 737 GetRequests, 636 SyntacticMatches, 0 SemanticMatches, 101 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 368 ImplicationChecksByTransitivity, 3.8s TimeCoverageRelationStatistics Valid=4417, Invalid=6089, Unknown=0, NotChecked=0, Total=10506 [2022-10-16 14:26:05,178 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 26 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 14 SdHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 14:26:05,179 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 14 Invalid, 55 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 14:26:05,180 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 642 states. [2022-10-16 14:26:05,200 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 642 to 642. [2022-10-16 14:26:05,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 642 states, 641 states have (on average 1.001560062402496) internal successors, (642), 641 states have internal predecessors, (642), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:26:05,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 642 states to 642 states and 642 transitions. [2022-10-16 14:26:05,204 INFO L78 Accepts]: Start accepts. Automaton has 642 states and 642 transitions. Word has length 641 [2022-10-16 14:26:05,205 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:26:05,205 INFO L495 AbstractCegarLoop]: Abstraction has 642 states and 642 transitions. [2022-10-16 14:26:05,205 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 3.6666666666666665) internal successors, (22), 7 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:26:05,206 INFO L276 IsEmpty]: Start isEmpty. Operand 642 states and 642 transitions. [2022-10-16 14:26:05,223 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 642 [2022-10-16 14:26:05,223 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:26:05,224 INFO L195 NwaCegarLoop]: trace histogram [91, 90, 90, 90, 90, 90, 90, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:26:05,257 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-10-16 14:26:05,437 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:26:05,438 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-16 14:26:05,438 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:26:05,439 INFO L85 PathProgramCache]: Analyzing trace with hash 968839415, now seen corresponding path program 1 times [2022-10-16 14:26:05,439 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:26:05,439 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1538760183] [2022-10-16 14:26:05,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:26:05,440 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:26:05,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:26:14,139 INFO L134 CoverageAnalysis]: Checked inductivity of 28215 backedges. 0 proven. 28215 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:26:14,140 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:26:14,140 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1538760183] [2022-10-16 14:26:14,140 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1538760183] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:26:14,140 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [320829559] [2022-10-16 14:26:14,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:26:14,140 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:26:14,141 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:26:14,146 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 14:26:14,151 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-10-16 14:26:14,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:26:14,551 INFO L263 TraceCheckSpWp]: Trace formula consists of 2496 conjuncts, 92 conjunts are in the unsatisfiable core [2022-10-16 14:26:14,572 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:26:15,357 INFO L134 CoverageAnalysis]: Checked inductivity of 28215 backedges. 0 proven. 28215 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:26:15,357 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:26:26,572 INFO L134 CoverageAnalysis]: Checked inductivity of 28215 backedges. 0 proven. 28215 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:26:26,572 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [320829559] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:26:26,572 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:26:26,573 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [92, 92, 92] total 184 [2022-10-16 14:26:26,573 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2083624557] [2022-10-16 14:26:26,573 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:26:26,575 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 185 states [2022-10-16 14:26:26,575 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:26:26,579 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 185 interpolants. [2022-10-16 14:26:26,582 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17020, Invalid=17020, Unknown=0, NotChecked=0, Total=34040 [2022-10-16 14:26:26,583 INFO L87 Difference]: Start difference. First operand 642 states and 642 transitions. Second operand has 185 states, 184 states have (on average 7.010869565217392) internal successors, (1290), 185 states have internal predecessors, (1290), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:26:28,882 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:26:28,882 INFO L93 Difference]: Finished difference Result 1287 states and 1378 transitions. [2022-10-16 14:26:28,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 184 states. [2022-10-16 14:26:28,883 INFO L78 Accepts]: Start accepts. Automaton has has 185 states, 184 states have (on average 7.010869565217392) internal successors, (1290), 185 states have internal predecessors, (1290), 0 states have call successors, (0), 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 641 [2022-10-16 14:26:28,884 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:26:28,890 INFO L225 Difference]: With dead ends: 1287 [2022-10-16 14:26:28,890 INFO L226 Difference]: Without dead ends: 1286 [2022-10-16 14:26:28,893 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1372 GetRequests, 1189 SyntacticMatches, 0 SemanticMatches, 183 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 360 ImplicationChecksByTransitivity, 13.6s TimeCoverageRelationStatistics Valid=17020, Invalid=17020, Unknown=0, NotChecked=0, Total=34040 [2022-10-16 14:26:28,894 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 667 mSDsluCounter, 189 mSDsCounter, 0 mSdLazyCounter, 1118 mSolverCounterSat, 97 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 667 SdHoareTripleChecker+Valid, 197 SdHoareTripleChecker+Invalid, 1215 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 97 IncrementalHoareTripleChecker+Valid, 1118 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-10-16 14:26:28,894 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [667 Valid, 197 Invalid, 1215 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [97 Valid, 1118 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-10-16 14:26:28,896 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1286 states. [2022-10-16 14:26:28,928 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1286 to 1286. [2022-10-16 14:26:28,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1286 states, 1285 states have (on average 1.0007782101167315) internal successors, (1286), 1285 states have internal predecessors, (1286), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:26:28,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1286 states to 1286 states and 1286 transitions. [2022-10-16 14:26:28,934 INFO L78 Accepts]: Start accepts. Automaton has 1286 states and 1286 transitions. Word has length 641 [2022-10-16 14:26:28,935 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:26:28,936 INFO L495 AbstractCegarLoop]: Abstraction has 1286 states and 1286 transitions. [2022-10-16 14:26:28,937 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 185 states, 184 states have (on average 7.010869565217392) internal successors, (1290), 185 states have internal predecessors, (1290), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:26:28,937 INFO L276 IsEmpty]: Start isEmpty. Operand 1286 states and 1286 transitions. [2022-10-16 14:26:28,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1286 [2022-10-16 14:26:28,951 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:26:28,951 INFO L195 NwaCegarLoop]: trace histogram [183, 182, 182, 182, 182, 182, 182, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:26:28,981 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-10-16 14:26:29,159 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,SelfDestructingSolverStorable13 [2022-10-16 14:26:29,160 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-16 14:26:29,160 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:26:29,161 INFO L85 PathProgramCache]: Analyzing trace with hash -1002542409, now seen corresponding path program 2 times [2022-10-16 14:26:29,161 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:26:29,162 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2036434799] [2022-10-16 14:26:29,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:26:29,162 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:26:29,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:27:10,023 INFO L134 CoverageAnalysis]: Checked inductivity of 115661 backedges. 0 proven. 115661 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:27:10,024 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:27:10,024 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2036434799] [2022-10-16 14:27:10,024 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2036434799] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:27:10,024 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1315374950] [2022-10-16 14:27:10,024 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-16 14:27:10,024 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:27:10,025 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:27:10,025 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 14:27:10,026 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-10-16 14:27:10,840 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-10-16 14:27:10,840 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 14:27:10,862 INFO L263 TraceCheckSpWp]: Trace formula consists of 4980 conjuncts, 184 conjunts are in the unsatisfiable core [2022-10-16 14:27:10,890 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:27:12,517 INFO L134 CoverageAnalysis]: Checked inductivity of 115661 backedges. 0 proven. 115661 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:27:12,517 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:27:56,503 INFO L134 CoverageAnalysis]: Checked inductivity of 115661 backedges. 0 proven. 115661 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:27:56,504 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1315374950] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:27:56,504 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:27:56,505 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [184, 184, 184] total 368 [2022-10-16 14:27:56,505 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1556215598] [2022-10-16 14:27:56,505 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:27:56,509 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 369 states [2022-10-16 14:27:56,509 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:27:56,522 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 369 interpolants. [2022-10-16 14:27:56,529 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=67896, Invalid=67896, Unknown=0, NotChecked=0, Total=135792 [2022-10-16 14:27:56,532 INFO L87 Difference]: Start difference. First operand 1286 states and 1286 transitions. Second operand has 369 states, 368 states have (on average 7.005434782608695) internal successors, (2578), 369 states have internal predecessors, (2578), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:28:06,821 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:28:06,821 INFO L93 Difference]: Finished difference Result 2575 states and 2758 transitions. [2022-10-16 14:28:06,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 368 states. [2022-10-16 14:28:06,823 INFO L78 Accepts]: Start accepts. Automaton has has 369 states, 368 states have (on average 7.005434782608695) internal successors, (2578), 369 states have internal predecessors, (2578), 0 states have call successors, (0), 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 1285 [2022-10-16 14:28:06,825 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:28:06,835 INFO L225 Difference]: With dead ends: 2575 [2022-10-16 14:28:06,836 INFO L226 Difference]: Without dead ends: 2574 [2022-10-16 14:28:06,843 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2752 GetRequests, 2385 SyntacticMatches, 0 SemanticMatches, 367 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 728 ImplicationChecksByTransitivity, 55.8s TimeCoverageRelationStatistics Valid=67896, Invalid=67896, Unknown=0, NotChecked=0, Total=135792 [2022-10-16 14:28:06,844 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 1134 mSDsluCounter, 371 mSDsCounter, 0 mSdLazyCounter, 2218 mSolverCounterSat, 190 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1134 SdHoareTripleChecker+Valid, 379 SdHoareTripleChecker+Invalid, 2408 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 190 IncrementalHoareTripleChecker+Valid, 2218 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-10-16 14:28:06,844 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1134 Valid, 379 Invalid, 2408 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [190 Valid, 2218 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-10-16 14:28:06,847 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2574 states. [2022-10-16 14:28:06,910 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2574 to 2574. [2022-10-16 14:28:06,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2574 states, 2573 states have (on average 1.0003886513797124) internal successors, (2574), 2573 states have internal predecessors, (2574), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:28:06,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2574 states to 2574 states and 2574 transitions. [2022-10-16 14:28:06,921 INFO L78 Accepts]: Start accepts. Automaton has 2574 states and 2574 transitions. Word has length 1285 [2022-10-16 14:28:06,924 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:28:06,924 INFO L495 AbstractCegarLoop]: Abstraction has 2574 states and 2574 transitions. [2022-10-16 14:28:06,926 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 369 states, 368 states have (on average 7.005434782608695) internal successors, (2578), 369 states have internal predecessors, (2578), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:28:06,926 INFO L276 IsEmpty]: Start isEmpty. Operand 2574 states and 2574 transitions. [2022-10-16 14:28:07,012 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2574 [2022-10-16 14:28:07,012 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:28:07,013 INFO L195 NwaCegarLoop]: trace histogram [367, 366, 366, 366, 366, 366, 366, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:28:07,043 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-10-16 14:28:07,218 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2022-10-16 14:28:07,219 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-16 14:28:07,220 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:28:07,221 INFO L85 PathProgramCache]: Analyzing trace with hash 1130364471, now seen corresponding path program 3 times [2022-10-16 14:28:07,221 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:28:07,222 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1464969020] [2022-10-16 14:28:07,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:28:07,222 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:28:09,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat