./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test6-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 7e70badd Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a263380-a25e-4b80-93b0-648fd11cace3/bin/uautomizer-wIGwrQj20G/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a263380-a25e-4b80-93b0-648fd11cace3/bin/uautomizer-wIGwrQj20G/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a263380-a25e-4b80-93b0-648fd11cace3/bin/uautomizer-wIGwrQj20G/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a263380-a25e-4b80-93b0-648fd11cace3/bin/uautomizer-wIGwrQj20G/config/AutomizerReach.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test6-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a263380-a25e-4b80-93b0-648fd11cace3/bin/uautomizer-wIGwrQj20G/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a263380-a25e-4b80-93b0-648fd11cace3/bin/uautomizer-wIGwrQj20G --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 4a058bd9944921e52018f99044f11f694f824f3f09daf510330544b4558ba193 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-7e70bad [2021-11-23 12:26:47,461 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 12:26:47,465 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 12:26:47,522 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 12:26:47,522 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 12:26:47,524 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 12:26:47,526 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 12:26:47,528 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 12:26:47,531 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 12:26:47,532 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 12:26:47,533 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 12:26:47,535 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 12:26:47,536 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 12:26:47,537 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 12:26:47,539 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 12:26:47,541 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 12:26:47,542 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 12:26:47,544 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 12:26:47,546 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 12:26:47,549 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 12:26:47,559 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 12:26:47,566 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 12:26:47,569 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 12:26:47,571 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 12:26:47,586 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 12:26:47,587 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 12:26:47,587 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 12:26:47,588 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 12:26:47,589 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 12:26:47,590 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 12:26:47,591 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 12:26:47,592 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 12:26:47,594 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 12:26:47,597 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 12:26:47,598 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 12:26:47,599 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 12:26:47,599 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 12:26:47,600 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 12:26:47,600 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 12:26:47,608 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 12:26:47,609 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 12:26:47,610 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a263380-a25e-4b80-93b0-648fd11cace3/bin/uautomizer-wIGwrQj20G/config/svcomp-Overflow-32bit-Automizer_Default.epf [2021-11-23 12:26:47,659 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 12:26:47,660 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 12:26:47,660 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 12:26:47,661 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 12:26:47,664 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-23 12:26:47,664 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-23 12:26:47,664 INFO L138 SettingsManager]: * Use SBE=true [2021-11-23 12:26:47,664 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 12:26:47,665 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 12:26:47,665 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-23 12:26:47,666 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 12:26:47,666 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 12:26:47,667 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 12:26:47,667 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 12:26:47,667 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 12:26:47,667 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 12:26:47,668 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2021-11-23 12:26:47,668 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 12:26:47,668 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 12:26:47,668 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 12:26:47,668 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 12:26:47,669 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 12:26:47,669 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-23 12:26:47,669 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 12:26:47,669 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 12:26:47,670 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 12:26:47,670 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 12:26:47,670 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 12:26:47,670 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-23 12:26:47,672 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 12:26:47,673 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 12:26:47,673 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 12:26:47,673 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:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a263380-a25e-4b80-93b0-648fd11cace3/bin/uautomizer-wIGwrQj20G/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a263380-a25e-4b80-93b0-648fd11cace3/bin/uautomizer-wIGwrQj20G Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4a058bd9944921e52018f99044f11f694f824f3f09daf510330544b4558ba193 [2021-11-23 12:26:47,921 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 12:26:47,941 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 12:26:47,944 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 12:26:47,945 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 12:26:47,946 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 12:26:47,947 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a263380-a25e-4b80-93b0-648fd11cace3/bin/uautomizer-wIGwrQj20G/../../sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test6-2.i [2021-11-23 12:26:48,024 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a263380-a25e-4b80-93b0-648fd11cace3/bin/uautomizer-wIGwrQj20G/data/f430fc1a8/ae40776a958d4d7cb00cec137e14ff51/FLAG363c90f29 [2021-11-23 12:26:48,650 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 12:26:48,651 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a263380-a25e-4b80-93b0-648fd11cace3/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test6-2.i [2021-11-23 12:26:48,679 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a263380-a25e-4b80-93b0-648fd11cace3/bin/uautomizer-wIGwrQj20G/data/f430fc1a8/ae40776a958d4d7cb00cec137e14ff51/FLAG363c90f29 [2021-11-23 12:26:48,862 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a263380-a25e-4b80-93b0-648fd11cace3/bin/uautomizer-wIGwrQj20G/data/f430fc1a8/ae40776a958d4d7cb00cec137e14ff51 [2021-11-23 12:26:48,864 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 12:26:48,865 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 12:26:48,867 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 12:26:48,867 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 12:26:48,870 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 12:26:48,871 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 12:26:48" (1/1) ... [2021-11-23 12:26:48,872 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5e262604 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:26:48, skipping insertion in model container [2021-11-23 12:26:48,872 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 12:26:48" (1/1) ... [2021-11-23 12:26:48,877 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 12:26:48,939 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 12:26:49,454 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a263380-a25e-4b80-93b0-648fd11cace3/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test6-2.i[44118,44131] [2021-11-23 12:26:49,464 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a263380-a25e-4b80-93b0-648fd11cace3/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test6-2.i[44660,44673] [2021-11-23 12:26:49,558 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a263380-a25e-4b80-93b0-648fd11cace3/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test6-2.i[56247,56260] [2021-11-23 12:26:49,559 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a263380-a25e-4b80-93b0-648fd11cace3/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test6-2.i[56368,56381] [2021-11-23 12:26:49,582 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 12:26:49,601 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 12:26:49,674 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a263380-a25e-4b80-93b0-648fd11cace3/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test6-2.i[44118,44131] [2021-11-23 12:26:49,677 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a263380-a25e-4b80-93b0-648fd11cace3/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test6-2.i[44660,44673] [2021-11-23 12:26:49,743 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a263380-a25e-4b80-93b0-648fd11cace3/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test6-2.i[56247,56260] [2021-11-23 12:26:49,744 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a263380-a25e-4b80-93b0-648fd11cace3/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test6-2.i[56368,56381] [2021-11-23 12:26:49,797 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 12:26:49,898 INFO L208 MainTranslator]: Completed translation [2021-11-23 12:26:49,899 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:26:49 WrapperNode [2021-11-23 12:26:49,899 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 12:26:49,900 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 12:26:49,900 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 12:26:49,901 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 12:26:49,908 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:26:49" (1/1) ... [2021-11-23 12:26:49,949 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:26:49" (1/1) ... [2021-11-23 12:26:50,061 INFO L137 Inliner]: procedures = 282, calls = 347, calls flagged for inlining = 22, calls inlined = 26, statements flattened = 1372 [2021-11-23 12:26:50,062 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 12:26:50,062 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 12:26:50,063 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 12:26:50,063 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 12:26:50,072 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:26:49" (1/1) ... [2021-11-23 12:26:50,072 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:26:49" (1/1) ... [2021-11-23 12:26:50,088 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:26:49" (1/1) ... [2021-11-23 12:26:50,088 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:26:49" (1/1) ... [2021-11-23 12:26:50,150 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:26:49" (1/1) ... [2021-11-23 12:26:50,166 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:26:49" (1/1) ... [2021-11-23 12:26:50,171 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:26:49" (1/1) ... [2021-11-23 12:26:50,183 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 12:26:50,184 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 12:26:50,184 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 12:26:50,184 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 12:26:50,185 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:26:49" (1/1) ... [2021-11-23 12:26:50,204 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 12:26:50,215 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a263380-a25e-4b80-93b0-648fd11cace3/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 12:26:50,240 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a263380-a25e-4b80-93b0-648fd11cace3/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-23 12:26:50,269 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a263380-a25e-4b80-93b0-648fd11cace3/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-23 12:26:50,284 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-23 12:26:50,284 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2021-11-23 12:26:50,284 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-23 12:26:50,284 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-23 12:26:50,285 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-23 12:26:50,285 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-23 12:26:50,285 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-23 12:26:50,285 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 12:26:50,285 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-23 12:26:50,285 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 12:26:50,286 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 12:26:50,286 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 12:26:50,509 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 12:26:50,510 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 12:26:51,747 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 12:26:51,756 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 12:26:51,757 INFO L301 CfgBuilder]: Removed 72 assume(true) statements. [2021-11-23 12:26:51,759 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 12:26:51 BoogieIcfgContainer [2021-11-23 12:26:51,759 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 12:26:51,761 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-23 12:26:51,761 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-23 12:26:51,765 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-23 12:26:51,765 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 12:26:48" (1/3) ... [2021-11-23 12:26:51,766 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3972f00b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 12:26:51, skipping insertion in model container [2021-11-23 12:26:51,766 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:26:49" (2/3) ... [2021-11-23 12:26:51,766 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3972f00b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 12:26:51, skipping insertion in model container [2021-11-23 12:26:51,767 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 12:26:51" (3/3) ... [2021-11-23 12:26:51,768 INFO L111 eAbstractionObserver]: Analyzing ICFG uthash_JEN_test6-2.i [2021-11-23 12:26:51,774 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-23 12:26:51,774 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 32 error locations. [2021-11-23 12:26:51,825 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-23 12:26:51,838 INFO L339 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, mLoopAccelerationTechnique=FAST_UPR [2021-11-23 12:26:51,839 INFO L340 AbstractCegarLoop]: Starting to check reachability of 32 error locations. [2021-11-23 12:26:51,863 INFO L276 IsEmpty]: Start isEmpty. Operand has 316 states, 283 states have (on average 1.6784452296819787) internal successors, (475), 315 states have internal predecessors, (475), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 12:26:51,868 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-11-23 12:26:51,868 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 12:26:51,869 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 12:26:51,870 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 29 more)] === [2021-11-23 12:26:51,875 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 12:26:51,875 INFO L85 PathProgramCache]: Analyzing trace with hash 149889836, now seen corresponding path program 1 times [2021-11-23 12:26:51,883 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 12:26:51,883 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1408661947] [2021-11-23 12:26:51,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 12:26:51,884 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 12:26:52,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 12:26:52,102 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 12:26:52,103 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 12:26:52,104 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1408661947] [2021-11-23 12:26:52,105 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1408661947] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 12:26:52,106 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 12:26:52,106 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-23 12:26:52,108 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1286096870] [2021-11-23 12:26:52,109 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 12:26:52,114 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-23 12:26:52,114 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 12:26:52,149 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-23 12:26:52,150 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-23 12:26:52,155 INFO L87 Difference]: Start difference. First operand has 316 states, 283 states have (on average 1.6784452296819787) internal successors, (475), 315 states have internal predecessors, (475), 0 states have call successors, (0), 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 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 12:26:52,233 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 12:26:52,233 INFO L93 Difference]: Finished difference Result 622 states and 939 transitions. [2021-11-23 12:26:52,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-23 12:26:52,237 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2021-11-23 12:26:52,237 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 12:26:52,262 INFO L225 Difference]: With dead ends: 622 [2021-11-23 12:26:52,263 INFO L226 Difference]: Without dead ends: 304 [2021-11-23 12:26:52,271 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-23 12:26:52,294 INFO L933 BasicCegarLoop]: 377 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 377 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-23 12:26:52,296 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 377 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-23 12:26:52,315 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 304 states. [2021-11-23 12:26:52,367 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 304 to 304. [2021-11-23 12:26:52,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 304 states, 274 states have (on average 1.3613138686131387) internal successors, (373), 303 states have internal predecessors, (373), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 12:26:52,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 304 states to 304 states and 373 transitions. [2021-11-23 12:26:52,385 INFO L78 Accepts]: Start accepts. Automaton has 304 states and 373 transitions. Word has length 8 [2021-11-23 12:26:52,385 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 12:26:52,385 INFO L470 AbstractCegarLoop]: Abstraction has 304 states and 373 transitions. [2021-11-23 12:26:52,386 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 12:26:52,387 INFO L276 IsEmpty]: Start isEmpty. Operand 304 states and 373 transitions. [2021-11-23 12:26:52,387 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-11-23 12:26:52,387 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 12:26:52,388 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 12:26:52,388 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-23 12:26:52,388 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 29 more)] === [2021-11-23 12:26:52,392 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 12:26:52,392 INFO L85 PathProgramCache]: Analyzing trace with hash 149891758, now seen corresponding path program 1 times [2021-11-23 12:26:52,392 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 12:26:52,392 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1673196150] [2021-11-23 12:26:52,393 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 12:26:52,394 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 12:26:52,451 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-23 12:26:52,455 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1178132640] [2021-11-23 12:26:52,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 12:26:52,456 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 12:26:52,457 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a263380-a25e-4b80-93b0-648fd11cace3/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 12:26:52,461 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a263380-a25e-4b80-93b0-648fd11cace3/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 12:26:52,485 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a263380-a25e-4b80-93b0-648fd11cace3/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-23 12:26:52,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 12:26:52,637 INFO L263 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 10 conjunts are in the unsatisfiable core [2021-11-23 12:26:52,645 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 12:26:52,708 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-23 12:26:52,715 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-23 12:26:52,785 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-11-23 12:26:52,786 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2021-11-23 12:26:52,882 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 11 [2021-11-23 12:26:52,894 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 12:26:52,895 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-23 12:26:52,895 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 12:26:52,895 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1673196150] [2021-11-23 12:26:52,896 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-23 12:26:52,896 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1178132640] [2021-11-23 12:26:52,897 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1178132640] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 12:26:52,898 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 12:26:52,898 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-23 12:26:52,902 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [983870791] [2021-11-23 12:26:52,902 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 12:26:52,903 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-23 12:26:52,903 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 12:26:52,904 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-23 12:26:52,905 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-23 12:26:52,906 INFO L87 Difference]: Start difference. First operand 304 states and 373 transitions. Second operand has 6 states, 5 states have (on average 1.6) internal successors, (8), 6 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 12:26:53,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 12:26:53,845 INFO L93 Difference]: Finished difference Result 468 states and 582 transitions. [2021-11-23 12:26:53,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-23 12:26:53,846 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 1.6) internal successors, (8), 6 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2021-11-23 12:26:53,847 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 12:26:53,849 INFO L225 Difference]: With dead ends: 468 [2021-11-23 12:26:53,849 INFO L226 Difference]: Without dead ends: 466 [2021-11-23 12:26:53,850 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-11-23 12:26:53,851 INFO L933 BasicCegarLoop]: 336 mSDtfsCounter, 292 mSDsluCounter, 1154 mSDsCounter, 0 mSdLazyCounter, 468 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 292 SdHoareTripleChecker+Valid, 1490 SdHoareTripleChecker+Invalid, 486 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 468 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2021-11-23 12:26:53,854 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [292 Valid, 1490 Invalid, 486 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 468 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2021-11-23 12:26:53,856 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 466 states. [2021-11-23 12:26:53,884 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 466 to 311. [2021-11-23 12:26:53,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 311 states, 281 states have (on average 1.3558718861209964) internal successors, (381), 310 states have internal predecessors, (381), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 12:26:53,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 311 states to 311 states and 381 transitions. [2021-11-23 12:26:53,887 INFO L78 Accepts]: Start accepts. Automaton has 311 states and 381 transitions. Word has length 8 [2021-11-23 12:26:53,887 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 12:26:53,887 INFO L470 AbstractCegarLoop]: Abstraction has 311 states and 381 transitions. [2021-11-23 12:26:53,887 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 1.6) internal successors, (8), 6 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 12:26:53,888 INFO L276 IsEmpty]: Start isEmpty. Operand 311 states and 381 transitions. [2021-11-23 12:26:53,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-11-23 12:26:53,889 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 12:26:53,889 INFO L514 BasicCegarLoop]: 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] [2021-11-23 12:26:53,927 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a263380-a25e-4b80-93b0-648fd11cace3/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-23 12:26:54,089 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a263380-a25e-4b80-93b0-648fd11cace3/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 12:26:54,090 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 29 more)] === [2021-11-23 12:26:54,091 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 12:26:54,091 INFO L85 PathProgramCache]: Analyzing trace with hash -1921516483, now seen corresponding path program 1 times [2021-11-23 12:26:54,091 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 12:26:54,091 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1876274598] [2021-11-23 12:26:54,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 12:26:54,092 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 12:26:54,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 12:26:54,224 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 12:26:54,225 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 12:26:54,225 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1876274598] [2021-11-23 12:26:54,225 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1876274598] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 12:26:54,226 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 12:26:54,226 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-23 12:26:54,226 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1719637938] [2021-11-23 12:26:54,226 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 12:26:54,227 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 12:26:54,227 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 12:26:54,227 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 12:26:54,228 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-23 12:26:54,228 INFO L87 Difference]: Start difference. First operand 311 states and 381 transitions. Second operand has 4 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 12:26:54,605 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 12:26:54,605 INFO L93 Difference]: Finished difference Result 608 states and 748 transitions. [2021-11-23 12:26:54,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-23 12:26:54,606 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 23 [2021-11-23 12:26:54,607 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 12:26:54,609 INFO L225 Difference]: With dead ends: 608 [2021-11-23 12:26:54,610 INFO L226 Difference]: Without dead ends: 452 [2021-11-23 12:26:54,610 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-23 12:26:54,612 INFO L933 BasicCegarLoop]: 356 mSDtfsCounter, 168 mSDsluCounter, 628 mSDsCounter, 0 mSdLazyCounter, 183 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 168 SdHoareTripleChecker+Valid, 984 SdHoareTripleChecker+Invalid, 186 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 183 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-11-23 12:26:54,612 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [168 Valid, 984 Invalid, 186 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 183 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-11-23 12:26:54,614 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 452 states. [2021-11-23 12:26:54,637 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 452 to 311. [2021-11-23 12:26:54,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 311 states, 281 states have (on average 1.3523131672597866) internal successors, (380), 310 states have internal predecessors, (380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 12:26:54,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 311 states to 311 states and 380 transitions. [2021-11-23 12:26:54,640 INFO L78 Accepts]: Start accepts. Automaton has 311 states and 380 transitions. Word has length 23 [2021-11-23 12:26:54,640 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 12:26:54,647 INFO L470 AbstractCegarLoop]: Abstraction has 311 states and 380 transitions. [2021-11-23 12:26:54,648 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 12:26:54,648 INFO L276 IsEmpty]: Start isEmpty. Operand 311 states and 380 transitions. [2021-11-23 12:26:54,650 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2021-11-23 12:26:54,651 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 12:26:54,653 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 12:26:54,653 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-23 12:26:54,653 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 29 more)] === [2021-11-23 12:26:54,654 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 12:26:54,654 INFO L85 PathProgramCache]: Analyzing trace with hash 351079904, now seen corresponding path program 1 times [2021-11-23 12:26:54,654 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 12:26:54,654 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1009082279] [2021-11-23 12:26:54,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 12:26:54,655 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 12:26:54,691 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-23 12:26:54,694 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1872828162] [2021-11-23 12:26:54,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 12:26:54,695 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 12:26:54,695 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a263380-a25e-4b80-93b0-648fd11cace3/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 12:26:54,696 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a263380-a25e-4b80-93b0-648fd11cace3/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 12:26:54,700 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a263380-a25e-4b80-93b0-648fd11cace3/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-23 12:26:54,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 12:26:54,883 INFO L263 TraceCheckSpWp]: Trace formula consists of 166 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-23 12:26:54,894 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 12:26:54,995 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 12:26:54,995 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-23 12:26:54,996 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 12:26:54,996 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1009082279] [2021-11-23 12:26:54,996 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-23 12:26:54,996 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1872828162] [2021-11-23 12:26:54,996 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1872828162] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 12:26:54,997 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 12:26:54,997 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 12:26:54,997 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1566735588] [2021-11-23 12:26:54,997 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 12:26:54,998 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 12:26:54,999 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 12:26:54,999 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 12:26:55,000 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 12:26:55,000 INFO L87 Difference]: Start difference. First operand 311 states and 380 transitions. Second operand has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 12:26:55,064 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 12:26:55,064 INFO L93 Difference]: Finished difference Result 634 states and 782 transitions. [2021-11-23 12:26:55,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 12:26:55,065 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 44 [2021-11-23 12:26:55,065 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 12:26:55,067 INFO L225 Difference]: With dead ends: 634 [2021-11-23 12:26:55,067 INFO L226 Difference]: Without dead ends: 332 [2021-11-23 12:26:55,068 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 12:26:55,073 INFO L933 BasicCegarLoop]: 353 mSDtfsCounter, 9 mSDsluCounter, 338 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 691 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-23 12:26:55,075 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9 Valid, 691 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-23 12:26:55,078 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 332 states. [2021-11-23 12:26:55,084 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 332 to 331. [2021-11-23 12:26:55,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 331 states, 301 states have (on average 1.3289036544850499) internal successors, (400), 330 states have internal predecessors, (400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 12:26:55,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 331 states to 331 states and 400 transitions. [2021-11-23 12:26:55,086 INFO L78 Accepts]: Start accepts. Automaton has 331 states and 400 transitions. Word has length 44 [2021-11-23 12:26:55,086 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 12:26:55,087 INFO L470 AbstractCegarLoop]: Abstraction has 331 states and 400 transitions. [2021-11-23 12:26:55,087 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 12:26:55,088 INFO L276 IsEmpty]: Start isEmpty. Operand 331 states and 400 transitions. [2021-11-23 12:26:55,097 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2021-11-23 12:26:55,097 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 12:26:55,097 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 12:26:55,124 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a263380-a25e-4b80-93b0-648fd11cace3/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2021-11-23 12:26:55,311 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a263380-a25e-4b80-93b0-648fd11cace3/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 12:26:55,312 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 29 more)] === [2021-11-23 12:26:55,312 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 12:26:55,312 INFO L85 PathProgramCache]: Analyzing trace with hash 30874852, now seen corresponding path program 1 times [2021-11-23 12:26:55,312 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 12:26:55,312 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1683015873] [2021-11-23 12:26:55,313 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 12:26:55,313 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 12:26:55,329 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-23 12:26:55,329 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [111587718] [2021-11-23 12:26:55,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 12:26:55,329 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 12:26:55,329 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a263380-a25e-4b80-93b0-648fd11cace3/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 12:26:55,330 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a263380-a25e-4b80-93b0-648fd11cace3/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 12:26:55,356 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a263380-a25e-4b80-93b0-648fd11cace3/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-23 12:26:55,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 12:26:55,497 INFO L263 TraceCheckSpWp]: Trace formula consists of 170 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-23 12:26:55,502 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 12:26:55,584 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 12:26:55,584 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-23 12:26:55,584 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 12:26:55,584 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1683015873] [2021-11-23 12:26:55,584 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-23 12:26:55,585 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [111587718] [2021-11-23 12:26:55,585 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [111587718] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 12:26:55,585 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 12:26:55,585 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-23 12:26:55,585 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [228037952] [2021-11-23 12:26:55,586 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 12:26:55,586 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 12:26:55,586 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 12:26:55,587 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 12:26:55,587 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-23 12:26:55,587 INFO L87 Difference]: Start difference. First operand 331 states and 400 transitions. Second operand has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 12:26:55,659 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 12:26:55,660 INFO L93 Difference]: Finished difference Result 643 states and 781 transitions. [2021-11-23 12:26:55,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-23 12:26:55,660 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 44 [2021-11-23 12:26:55,661 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 12:26:55,664 INFO L225 Difference]: With dead ends: 643 [2021-11-23 12:26:55,665 INFO L226 Difference]: Without dead ends: 321 [2021-11-23 12:26:55,666 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-23 12:26:55,669 INFO L933 BasicCegarLoop]: 356 mSDtfsCounter, 361 mSDsluCounter, 355 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 361 SdHoareTripleChecker+Valid, 711 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-23 12:26:55,669 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [361 Valid, 711 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-23 12:26:55,671 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 321 states. [2021-11-23 12:26:55,678 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 321 to 317. [2021-11-23 12:26:55,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 317 states, 287 states have (on average 1.3205574912891986) internal successors, (379), 316 states have internal predecessors, (379), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 12:26:55,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 317 states to 317 states and 379 transitions. [2021-11-23 12:26:55,681 INFO L78 Accepts]: Start accepts. Automaton has 317 states and 379 transitions. Word has length 44 [2021-11-23 12:26:55,681 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 12:26:55,682 INFO L470 AbstractCegarLoop]: Abstraction has 317 states and 379 transitions. [2021-11-23 12:26:55,682 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 12:26:55,682 INFO L276 IsEmpty]: Start isEmpty. Operand 317 states and 379 transitions. [2021-11-23 12:26:55,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2021-11-23 12:26:55,687 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 12:26:55,687 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 12:26:55,721 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a263380-a25e-4b80-93b0-648fd11cace3/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-11-23 12:26:55,907 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a263380-a25e-4b80-93b0-648fd11cace3/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 12:26:55,908 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 29 more)] === [2021-11-23 12:26:55,908 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 12:26:55,908 INFO L85 PathProgramCache]: Analyzing trace with hash 1174088982, now seen corresponding path program 1 times [2021-11-23 12:26:55,908 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 12:26:55,909 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1094377187] [2021-11-23 12:26:55,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 12:26:55,909 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 12:26:55,923 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-23 12:26:55,923 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1582521807] [2021-11-23 12:26:55,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 12:26:55,923 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 12:26:55,924 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a263380-a25e-4b80-93b0-648fd11cace3/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 12:26:55,924 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a263380-a25e-4b80-93b0-648fd11cace3/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 12:26:55,936 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a263380-a25e-4b80-93b0-648fd11cace3/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-11-23 12:26:56,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 12:26:56,079 INFO L263 TraceCheckSpWp]: Trace formula consists of 156 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-23 12:26:56,092 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 12:26:56,199 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 12:26:56,200 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-23 12:26:56,200 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 12:26:56,200 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1094377187] [2021-11-23 12:26:56,200 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-23 12:26:56,201 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1582521807] [2021-11-23 12:26:56,201 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1582521807] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 12:26:56,201 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 12:26:56,201 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-23 12:26:56,201 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1719827430] [2021-11-23 12:26:56,202 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 12:26:56,202 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 12:26:56,202 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 12:26:56,203 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 12:26:56,203 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-23 12:26:56,203 INFO L87 Difference]: Start difference. First operand 317 states and 379 transitions. Second operand has 4 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 12:26:56,341 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 12:26:56,341 INFO L93 Difference]: Finished difference Result 549 states and 663 transitions. [2021-11-23 12:26:56,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-23 12:26:56,341 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 44 [2021-11-23 12:26:56,342 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 12:26:56,345 INFO L225 Difference]: With dead ends: 549 [2021-11-23 12:26:56,345 INFO L226 Difference]: Without dead ends: 543 [2021-11-23 12:26:56,345 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-23 12:26:56,347 INFO L933 BasicCegarLoop]: 345 mSDtfsCounter, 230 mSDsluCounter, 669 mSDsCounter, 0 mSdLazyCounter, 74 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 230 SdHoareTripleChecker+Valid, 1014 SdHoareTripleChecker+Invalid, 92 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 74 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-23 12:26:56,348 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [230 Valid, 1014 Invalid, 92 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 74 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-23 12:26:56,349 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 543 states. [2021-11-23 12:26:56,364 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 543 to 531. [2021-11-23 12:26:56,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 531 states, 501 states have (on average 1.3033932135728543) internal successors, (653), 530 states have internal predecessors, (653), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 12:26:56,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 531 states to 531 states and 653 transitions. [2021-11-23 12:26:56,367 INFO L78 Accepts]: Start accepts. Automaton has 531 states and 653 transitions. Word has length 44 [2021-11-23 12:26:56,369 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 12:26:56,370 INFO L470 AbstractCegarLoop]: Abstraction has 531 states and 653 transitions. [2021-11-23 12:26:56,370 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 12:26:56,370 INFO L276 IsEmpty]: Start isEmpty. Operand 531 states and 653 transitions. [2021-11-23 12:26:56,371 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2021-11-23 12:26:56,371 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 12:26:56,371 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 12:26:56,408 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a263380-a25e-4b80-93b0-648fd11cace3/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-11-23 12:26:56,588 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a263380-a25e-4b80-93b0-648fd11cace3/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2021-11-23 12:26:56,588 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 29 more)] === [2021-11-23 12:26:56,589 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 12:26:56,589 INFO L85 PathProgramCache]: Analyzing trace with hash 2037020282, now seen corresponding path program 1 times [2021-11-23 12:26:56,589 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 12:26:56,589 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1921111436] [2021-11-23 12:26:56,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 12:26:56,590 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 12:26:56,605 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-23 12:26:56,605 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1647560512] [2021-11-23 12:26:56,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 12:26:56,606 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 12:26:56,606 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a263380-a25e-4b80-93b0-648fd11cace3/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 12:26:56,607 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a263380-a25e-4b80-93b0-648fd11cace3/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 12:26:56,645 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a263380-a25e-4b80-93b0-648fd11cace3/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-11-23 12:26:56,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 12:26:56,777 INFO L263 TraceCheckSpWp]: Trace formula consists of 157 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-23 12:26:56,780 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 12:26:56,905 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 12:26:56,905 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-23 12:26:56,906 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 12:26:56,906 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1921111436] [2021-11-23 12:26:56,906 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-23 12:26:56,906 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1647560512] [2021-11-23 12:26:56,906 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1647560512] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 12:26:56,906 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 12:26:56,906 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-23 12:26:56,907 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [138803988] [2021-11-23 12:26:56,907 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 12:26:56,907 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 12:26:56,907 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 12:26:56,908 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 12:26:56,908 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-23 12:26:56,908 INFO L87 Difference]: Start difference. First operand 531 states and 653 transitions. Second operand has 4 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 12:26:57,059 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 12:26:57,059 INFO L93 Difference]: Finished difference Result 929 states and 1158 transitions. [2021-11-23 12:26:57,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-23 12:26:57,059 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 45 [2021-11-23 12:26:57,060 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 12:26:57,064 INFO L225 Difference]: With dead ends: 929 [2021-11-23 12:26:57,065 INFO L226 Difference]: Without dead ends: 923 [2021-11-23 12:26:57,065 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-23 12:26:57,066 INFO L933 BasicCegarLoop]: 352 mSDtfsCounter, 287 mSDsluCounter, 674 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 287 SdHoareTripleChecker+Valid, 1026 SdHoareTripleChecker+Invalid, 102 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-23 12:26:57,066 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [287 Valid, 1026 Invalid, 102 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-23 12:26:57,068 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 923 states. [2021-11-23 12:26:57,088 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 923 to 906. [2021-11-23 12:26:57,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 906 states, 876 states have (on average 1.312785388127854) internal successors, (1150), 905 states have internal predecessors, (1150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 12:26:57,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 906 states to 906 states and 1150 transitions. [2021-11-23 12:26:57,093 INFO L78 Accepts]: Start accepts. Automaton has 906 states and 1150 transitions. Word has length 45 [2021-11-23 12:26:57,093 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 12:26:57,093 INFO L470 AbstractCegarLoop]: Abstraction has 906 states and 1150 transitions. [2021-11-23 12:26:57,094 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 12:26:57,094 INFO L276 IsEmpty]: Start isEmpty. Operand 906 states and 1150 transitions. [2021-11-23 12:26:57,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2021-11-23 12:26:57,099 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 12:26:57,100 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 12:26:57,123 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a263380-a25e-4b80-93b0-648fd11cace3/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-11-23 12:26:57,307 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a263380-a25e-4b80-93b0-648fd11cace3/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 12:26:57,308 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 29 more)] === [2021-11-23 12:26:57,308 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 12:26:57,308 INFO L85 PathProgramCache]: Analyzing trace with hash 291702918, now seen corresponding path program 1 times [2021-11-23 12:26:57,309 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 12:26:57,309 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1613331932] [2021-11-23 12:26:57,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 12:26:57,309 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 12:26:57,323 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-23 12:26:57,323 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [926113705] [2021-11-23 12:26:57,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 12:26:57,324 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 12:26:57,324 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a263380-a25e-4b80-93b0-648fd11cace3/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 12:26:57,324 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a263380-a25e-4b80-93b0-648fd11cace3/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 12:26:57,354 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a263380-a25e-4b80-93b0-648fd11cace3/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-11-23 12:26:57,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 12:26:57,508 INFO L263 TraceCheckSpWp]: Trace formula consists of 196 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-23 12:26:57,512 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 12:26:57,624 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 12:26:57,624 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-23 12:26:57,625 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 12:26:57,625 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1613331932] [2021-11-23 12:26:57,625 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-23 12:26:57,625 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [926113705] [2021-11-23 12:26:57,625 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [926113705] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 12:26:57,626 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 12:26:57,626 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-11-23 12:26:57,626 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1224614619] [2021-11-23 12:26:57,626 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 12:26:57,627 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 12:26:57,628 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 12:26:57,628 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 12:26:57,629 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 12:26:57,629 INFO L87 Difference]: Start difference. First operand 906 states and 1150 transitions. Second operand has 3 states, 2 states have (on average 25.0) internal successors, (50), 2 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 12:26:57,680 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 12:26:57,680 INFO L93 Difference]: Finished difference Result 938 states and 1174 transitions. [2021-11-23 12:26:57,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 12:26:57,681 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 25.0) internal successors, (50), 2 states have internal predecessors, (50), 0 states have call successors, (0), 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 50 [2021-11-23 12:26:57,683 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 12:26:57,692 INFO L225 Difference]: With dead ends: 938 [2021-11-23 12:26:57,693 INFO L226 Difference]: Without dead ends: 936 [2021-11-23 12:26:57,693 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 12:26:57,694 INFO L933 BasicCegarLoop]: 360 mSDtfsCounter, 241 mSDsluCounter, 351 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 241 SdHoareTripleChecker+Valid, 711 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-23 12:26:57,694 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [241 Valid, 711 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-23 12:26:57,696 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 936 states. [2021-11-23 12:26:57,744 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 936 to 922. [2021-11-23 12:26:57,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 922 states, 892 states have (on average 1.3094170403587444) internal successors, (1168), 921 states have internal predecessors, (1168), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 12:26:57,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 922 states to 922 states and 1168 transitions. [2021-11-23 12:26:57,750 INFO L78 Accepts]: Start accepts. Automaton has 922 states and 1168 transitions. Word has length 50 [2021-11-23 12:26:57,751 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 12:26:57,751 INFO L470 AbstractCegarLoop]: Abstraction has 922 states and 1168 transitions. [2021-11-23 12:26:57,751 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 25.0) internal successors, (50), 2 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 12:26:57,751 INFO L276 IsEmpty]: Start isEmpty. Operand 922 states and 1168 transitions. [2021-11-23 12:26:57,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2021-11-23 12:26:57,752 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 12:26:57,752 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 12:26:57,786 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a263380-a25e-4b80-93b0-648fd11cace3/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2021-11-23 12:26:57,971 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a263380-a25e-4b80-93b0-648fd11cace3/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2021-11-23 12:26:57,972 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 29 more)] === [2021-11-23 12:26:57,972 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 12:26:57,972 INFO L85 PathProgramCache]: Analyzing trace with hash 452856099, now seen corresponding path program 1 times [2021-11-23 12:26:57,973 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 12:26:57,973 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2047210687] [2021-11-23 12:26:57,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 12:26:57,973 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 12:26:57,985 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-23 12:26:57,985 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2091953] [2021-11-23 12:26:57,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 12:26:57,986 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 12:26:57,986 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a263380-a25e-4b80-93b0-648fd11cace3/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 12:26:57,987 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a263380-a25e-4b80-93b0-648fd11cace3/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 12:26:57,992 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a263380-a25e-4b80-93b0-648fd11cace3/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-11-23 12:26:58,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 12:26:58,140 INFO L263 TraceCheckSpWp]: Trace formula consists of 197 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-23 12:26:58,142 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 12:26:58,273 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 12:26:58,273 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-23 12:26:58,273 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 12:26:58,273 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2047210687] [2021-11-23 12:26:58,273 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-23 12:26:58,274 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2091953] [2021-11-23 12:26:58,274 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2091953] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 12:26:58,274 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 12:26:58,274 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-11-23 12:26:58,274 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [723334048] [2021-11-23 12:26:58,275 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 12:26:58,275 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 12:26:58,275 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 12:26:58,275 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 12:26:58,276 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 12:26:58,276 INFO L87 Difference]: Start difference. First operand 922 states and 1168 transitions. Second operand has 3 states, 2 states have (on average 25.5) internal successors, (51), 2 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 12:26:58,304 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 12:26:58,304 INFO L93 Difference]: Finished difference Result 922 states and 1168 transitions. [2021-11-23 12:26:58,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 12:26:58,305 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 25.5) internal successors, (51), 2 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 51 [2021-11-23 12:26:58,305 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 12:26:58,310 INFO L225 Difference]: With dead ends: 922 [2021-11-23 12:26:58,310 INFO L226 Difference]: Without dead ends: 919 [2021-11-23 12:26:58,311 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 12:26:58,312 INFO L933 BasicCegarLoop]: 353 mSDtfsCounter, 310 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 310 SdHoareTripleChecker+Valid, 353 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-23 12:26:58,312 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [310 Valid, 353 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-23 12:26:58,314 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 919 states. [2021-11-23 12:26:58,334 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 919 to 919. [2021-11-23 12:26:58,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 919 states, 892 states have (on average 1.3026905829596414) internal successors, (1162), 918 states have internal predecessors, (1162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 12:26:58,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 919 states to 919 states and 1162 transitions. [2021-11-23 12:26:58,340 INFO L78 Accepts]: Start accepts. Automaton has 919 states and 1162 transitions. Word has length 51 [2021-11-23 12:26:58,341 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 12:26:58,341 INFO L470 AbstractCegarLoop]: Abstraction has 919 states and 1162 transitions. [2021-11-23 12:26:58,341 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 25.5) internal successors, (51), 2 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 12:26:58,341 INFO L276 IsEmpty]: Start isEmpty. Operand 919 states and 1162 transitions. [2021-11-23 12:26:58,342 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2021-11-23 12:26:58,342 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 12:26:58,342 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 12:26:58,377 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a263380-a25e-4b80-93b0-648fd11cace3/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2021-11-23 12:26:58,567 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a263380-a25e-4b80-93b0-648fd11cace3/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2021-11-23 12:26:58,568 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 29 more)] === [2021-11-23 12:26:58,568 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 12:26:58,568 INFO L85 PathProgramCache]: Analyzing trace with hash -315683993, now seen corresponding path program 1 times [2021-11-23 12:26:58,569 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 12:26:58,569 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1196625370] [2021-11-23 12:26:58,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 12:26:58,569 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 12:26:58,581 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-23 12:26:58,581 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1439057907] [2021-11-23 12:26:58,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 12:26:58,581 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 12:26:58,582 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a263380-a25e-4b80-93b0-648fd11cace3/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 12:26:58,582 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a263380-a25e-4b80-93b0-648fd11cace3/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 12:26:58,615 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a263380-a25e-4b80-93b0-648fd11cace3/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2021-11-23 12:26:58,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 12:26:58,756 INFO L263 TraceCheckSpWp]: Trace formula consists of 233 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-23 12:26:58,759 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 12:26:58,900 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 12:26:58,901 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-23 12:26:58,901 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 12:26:58,901 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1196625370] [2021-11-23 12:26:58,901 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-23 12:26:58,901 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1439057907] [2021-11-23 12:26:58,901 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1439057907] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 12:26:58,901 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 12:26:58,902 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-23 12:26:58,902 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [728887612] [2021-11-23 12:26:58,902 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 12:26:58,902 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-23 12:26:58,902 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 12:26:58,903 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-23 12:26:58,903 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-23 12:26:58,903 INFO L87 Difference]: Start difference. First operand 919 states and 1162 transitions. Second operand has 6 states, 5 states have (on average 11.0) internal successors, (55), 5 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) [2021-11-23 12:26:59,183 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 12:26:59,183 INFO L93 Difference]: Finished difference Result 1725 states and 2175 transitions. [2021-11-23 12:26:59,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-23 12:26:59,184 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 11.0) internal successors, (55), 5 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) Word has length 55 [2021-11-23 12:26:59,185 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 12:26:59,198 INFO L225 Difference]: With dead ends: 1725 [2021-11-23 12:26:59,198 INFO L226 Difference]: Without dead ends: 1717 [2021-11-23 12:26:59,199 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-23 12:26:59,199 INFO L933 BasicCegarLoop]: 329 mSDtfsCounter, 939 mSDsluCounter, 945 mSDsCounter, 0 mSdLazyCounter, 117 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 939 SdHoareTripleChecker+Valid, 1274 SdHoareTripleChecker+Invalid, 176 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 117 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-23 12:26:59,201 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [939 Valid, 1274 Invalid, 176 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 117 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-23 12:26:59,206 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1717 states. [2021-11-23 12:26:59,247 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1717 to 1261. [2021-11-23 12:26:59,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1261 states, 1234 states have (on average 1.2852512155591571) internal successors, (1586), 1260 states have internal predecessors, (1586), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 12:26:59,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1261 states to 1261 states and 1586 transitions. [2021-11-23 12:26:59,259 INFO L78 Accepts]: Start accepts. Automaton has 1261 states and 1586 transitions. Word has length 55 [2021-11-23 12:26:59,260 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 12:26:59,260 INFO L470 AbstractCegarLoop]: Abstraction has 1261 states and 1586 transitions. [2021-11-23 12:26:59,260 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 11.0) internal successors, (55), 5 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) [2021-11-23 12:26:59,260 INFO L276 IsEmpty]: Start isEmpty. Operand 1261 states and 1586 transitions. [2021-11-23 12:26:59,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2021-11-23 12:26:59,261 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 12:26:59,262 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 12:26:59,299 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a263380-a25e-4b80-93b0-648fd11cace3/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2021-11-23 12:26:59,487 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a263380-a25e-4b80-93b0-648fd11cace3/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 12:26:59,488 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 29 more)] === [2021-11-23 12:26:59,488 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 12:26:59,488 INFO L85 PathProgramCache]: Analyzing trace with hash -298265703, now seen corresponding path program 1 times [2021-11-23 12:26:59,488 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 12:26:59,489 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1769763915] [2021-11-23 12:26:59,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 12:26:59,489 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 12:26:59,502 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-23 12:26:59,502 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [400070554] [2021-11-23 12:26:59,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 12:26:59,502 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 12:26:59,503 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a263380-a25e-4b80-93b0-648fd11cace3/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 12:26:59,503 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a263380-a25e-4b80-93b0-648fd11cace3/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 12:26:59,527 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a263380-a25e-4b80-93b0-648fd11cace3/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2021-11-23 12:26:59,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 12:26:59,667 INFO L263 TraceCheckSpWp]: Trace formula consists of 201 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-23 12:26:59,670 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 12:26:59,906 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 12:26:59,906 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-23 12:26:59,906 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 12:26:59,906 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1769763915] [2021-11-23 12:26:59,906 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-23 12:26:59,907 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [400070554] [2021-11-23 12:26:59,907 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [400070554] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 12:26:59,907 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 12:26:59,907 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 12:26:59,908 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1281055572] [2021-11-23 12:26:59,908 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 12:26:59,908 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 12:26:59,908 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 12:26:59,909 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 12:26:59,909 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 12:26:59,910 INFO L87 Difference]: Start difference. First operand 1261 states and 1586 transitions. Second operand has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 12:27:00,073 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 12:27:00,074 INFO L93 Difference]: Finished difference Result 2945 states and 3726 transitions. [2021-11-23 12:27:00,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 12:27:00,074 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 58 [2021-11-23 12:27:00,075 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 12:27:00,084 INFO L225 Difference]: With dead ends: 2945 [2021-11-23 12:27:00,084 INFO L226 Difference]: Without dead ends: 1693 [2021-11-23 12:27:00,086 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 12:27:00,087 INFO L933 BasicCegarLoop]: 445 mSDtfsCounter, 203 mSDsluCounter, 289 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 203 SdHoareTripleChecker+Valid, 734 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-23 12:27:00,087 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [203 Valid, 734 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-23 12:27:00,090 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1693 states. [2021-11-23 12:27:00,127 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1693 to 1527. [2021-11-23 12:27:00,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1527 states, 1500 states have (on average 1.2893333333333334) internal successors, (1934), 1526 states have internal predecessors, (1934), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 12:27:00,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1527 states to 1527 states and 1934 transitions. [2021-11-23 12:27:00,137 INFO L78 Accepts]: Start accepts. Automaton has 1527 states and 1934 transitions. Word has length 58 [2021-11-23 12:27:00,137 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 12:27:00,137 INFO L470 AbstractCegarLoop]: Abstraction has 1527 states and 1934 transitions. [2021-11-23 12:27:00,137 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 12:27:00,138 INFO L276 IsEmpty]: Start isEmpty. Operand 1527 states and 1934 transitions. [2021-11-23 12:27:00,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2021-11-23 12:27:00,138 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 12:27:00,138 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 12:27:00,173 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a263380-a25e-4b80-93b0-648fd11cace3/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2021-11-23 12:27:00,351 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a263380-a25e-4b80-93b0-648fd11cace3/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2021-11-23 12:27:00,352 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 29 more)] === [2021-11-23 12:27:00,352 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 12:27:00,352 INFO L85 PathProgramCache]: Analyzing trace with hash -279572905, now seen corresponding path program 1 times [2021-11-23 12:27:00,352 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 12:27:00,352 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2042995810] [2021-11-23 12:27:00,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 12:27:00,353 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 12:27:00,366 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-23 12:27:00,366 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1574382794] [2021-11-23 12:27:00,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 12:27:00,366 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 12:27:00,367 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a263380-a25e-4b80-93b0-648fd11cace3/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 12:27:00,367 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a263380-a25e-4b80-93b0-648fd11cace3/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 12:27:00,371 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a263380-a25e-4b80-93b0-648fd11cace3/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2021-11-23 12:27:00,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 12:27:00,552 INFO L263 TraceCheckSpWp]: Trace formula consists of 282 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-23 12:27:00,556 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 12:27:00,688 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 12:27:00,689 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-23 12:27:00,689 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 12:27:00,689 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2042995810] [2021-11-23 12:27:00,689 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-23 12:27:00,689 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1574382794] [2021-11-23 12:27:00,690 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1574382794] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 12:27:00,690 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 12:27:00,690 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-23 12:27:00,690 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1080614024] [2021-11-23 12:27:00,690 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 12:27:00,691 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 12:27:00,691 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 12:27:00,691 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 12:27:00,692 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-23 12:27:00,692 INFO L87 Difference]: Start difference. First operand 1527 states and 1934 transitions. Second operand has 4 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 12:27:00,738 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 12:27:00,739 INFO L93 Difference]: Finished difference Result 1559 states and 1972 transitions. [2021-11-23 12:27:00,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-23 12:27:00,740 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 61 [2021-11-23 12:27:00,740 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 12:27:00,748 INFO L225 Difference]: With dead ends: 1559 [2021-11-23 12:27:00,748 INFO L226 Difference]: Without dead ends: 1558 [2021-11-23 12:27:00,749 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-23 12:27:00,750 INFO L933 BasicCegarLoop]: 359 mSDtfsCounter, 76 mSDsluCounter, 364 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 76 SdHoareTripleChecker+Valid, 723 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-23 12:27:00,750 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [76 Valid, 723 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-23 12:27:00,753 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1558 states. [2021-11-23 12:27:00,791 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1558 to 1555. [2021-11-23 12:27:00,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1555 states, 1528 states have (on average 1.286649214659686) internal successors, (1966), 1554 states have internal predecessors, (1966), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 12:27:00,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1555 states to 1555 states and 1966 transitions. [2021-11-23 12:27:00,801 INFO L78 Accepts]: Start accepts. Automaton has 1555 states and 1966 transitions. Word has length 61 [2021-11-23 12:27:00,801 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 12:27:00,802 INFO L470 AbstractCegarLoop]: Abstraction has 1555 states and 1966 transitions. [2021-11-23 12:27:00,802 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 12:27:00,802 INFO L276 IsEmpty]: Start isEmpty. Operand 1555 states and 1966 transitions. [2021-11-23 12:27:00,803 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2021-11-23 12:27:00,803 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 12:27:00,803 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 12:27:00,843 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a263380-a25e-4b80-93b0-648fd11cace3/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2021-11-23 12:27:01,019 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a263380-a25e-4b80-93b0-648fd11cace3/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 12:27:01,020 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 29 more)] === [2021-11-23 12:27:01,020 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 12:27:01,020 INFO L85 PathProgramCache]: Analyzing trace with hash -1057410782, now seen corresponding path program 1 times [2021-11-23 12:27:01,020 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 12:27:01,020 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2080462173] [2021-11-23 12:27:01,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 12:27:01,020 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 12:27:01,031 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-23 12:27:01,032 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2010073276] [2021-11-23 12:27:01,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 12:27:01,032 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 12:27:01,032 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a263380-a25e-4b80-93b0-648fd11cace3/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 12:27:01,033 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a263380-a25e-4b80-93b0-648fd11cace3/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 12:27:01,055 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a263380-a25e-4b80-93b0-648fd11cace3/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2021-11-23 12:27:01,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 12:27:01,228 INFO L263 TraceCheckSpWp]: Trace formula consists of 374 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-23 12:27:01,230 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 12:27:01,402 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 12:27:01,402 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-23 12:27:01,402 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 12:27:01,402 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2080462173] [2021-11-23 12:27:01,402 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-23 12:27:01,403 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2010073276] [2021-11-23 12:27:01,403 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2010073276] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 12:27:01,403 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 12:27:01,403 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-23 12:27:01,403 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1456714827] [2021-11-23 12:27:01,404 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 12:27:01,404 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-23 12:27:01,404 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 12:27:01,405 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-23 12:27:01,405 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-23 12:27:01,405 INFO L87 Difference]: Start difference. First operand 1555 states and 1966 transitions. Second operand has 6 states, 5 states have (on average 15.8) internal successors, (79), 6 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) [2021-11-23 12:27:01,693 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 12:27:01,693 INFO L93 Difference]: Finished difference Result 2814 states and 3575 transitions. [2021-11-23 12:27:01,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-23 12:27:01,694 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 15.8) internal successors, (79), 6 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) Word has length 79 [2021-11-23 12:27:01,694 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 12:27:01,708 INFO L225 Difference]: With dead ends: 2814 [2021-11-23 12:27:01,708 INFO L226 Difference]: Without dead ends: 2806 [2021-11-23 12:27:01,710 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 76 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2021-11-23 12:27:01,710 INFO L933 BasicCegarLoop]: 809 mSDtfsCounter, 620 mSDsluCounter, 1726 mSDsCounter, 0 mSdLazyCounter, 160 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 620 SdHoareTripleChecker+Valid, 2535 SdHoareTripleChecker+Invalid, 195 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 160 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-23 12:27:01,711 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [620 Valid, 2535 Invalid, 195 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 160 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-23 12:27:01,715 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2806 states. [2021-11-23 12:27:01,781 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2806 to 1791. [2021-11-23 12:27:01,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1791 states, 1764 states have (on average 1.282312925170068) internal successors, (2262), 1790 states have internal predecessors, (2262), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 12:27:01,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1791 states to 1791 states and 2262 transitions. [2021-11-23 12:27:01,792 INFO L78 Accepts]: Start accepts. Automaton has 1791 states and 2262 transitions. Word has length 79 [2021-11-23 12:27:01,792 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 12:27:01,792 INFO L470 AbstractCegarLoop]: Abstraction has 1791 states and 2262 transitions. [2021-11-23 12:27:01,794 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 15.8) internal successors, (79), 6 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) [2021-11-23 12:27:01,794 INFO L276 IsEmpty]: Start isEmpty. Operand 1791 states and 2262 transitions. [2021-11-23 12:27:01,795 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2021-11-23 12:27:01,795 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 12:27:01,795 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 12:27:01,833 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a263380-a25e-4b80-93b0-648fd11cace3/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2021-11-23 12:27:02,019 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a263380-a25e-4b80-93b0-648fd11cace3/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 12:27:02,020 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 29 more)] === [2021-11-23 12:27:02,020 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 12:27:02,020 INFO L85 PathProgramCache]: Analyzing trace with hash -1981621477, now seen corresponding path program 1 times [2021-11-23 12:27:02,020 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 12:27:02,021 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1752505558] [2021-11-23 12:27:02,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 12:27:02,021 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 12:27:02,041 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-23 12:27:02,041 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [652191803] [2021-11-23 12:27:02,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 12:27:02,041 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 12:27:02,042 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a263380-a25e-4b80-93b0-648fd11cace3/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 12:27:02,051 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a263380-a25e-4b80-93b0-648fd11cace3/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 12:27:02,069 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a263380-a25e-4b80-93b0-648fd11cace3/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2021-11-23 12:27:02,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 12:27:02,236 INFO L263 TraceCheckSpWp]: Trace formula consists of 355 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-23 12:27:02,239 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 12:27:02,376 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 12:27:02,376 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-23 12:27:02,376 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 12:27:02,376 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1752505558] [2021-11-23 12:27:02,377 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-23 12:27:02,377 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [652191803] [2021-11-23 12:27:02,377 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [652191803] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 12:27:02,377 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 12:27:02,377 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-23 12:27:02,377 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1654108220] [2021-11-23 12:27:02,377 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 12:27:02,378 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-23 12:27:02,378 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 12:27:02,378 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-23 12:27:02,378 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-23 12:27:02,379 INFO L87 Difference]: Start difference. First operand 1791 states and 2262 transitions. Second operand has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 12:27:02,640 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 12:27:02,640 INFO L93 Difference]: Finished difference Result 3789 states and 4800 transitions. [2021-11-23 12:27:02,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-23 12:27:02,641 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 81 [2021-11-23 12:27:02,641 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 12:27:02,651 INFO L225 Difference]: With dead ends: 3789 [2021-11-23 12:27:02,651 INFO L226 Difference]: Without dead ends: 2070 [2021-11-23 12:27:02,654 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 77 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-23 12:27:02,655 INFO L933 BasicCegarLoop]: 852 mSDtfsCounter, 533 mSDsluCounter, 1979 mSDsCounter, 0 mSdLazyCounter, 162 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 533 SdHoareTripleChecker+Valid, 2831 SdHoareTripleChecker+Invalid, 177 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 162 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-23 12:27:02,655 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [533 Valid, 2831 Invalid, 177 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 162 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-23 12:27:02,658 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2070 states. [2021-11-23 12:27:02,705 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2070 to 1848. [2021-11-23 12:27:02,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1848 states, 1821 states have (on average 1.28555738605162) internal successors, (2341), 1847 states have internal predecessors, (2341), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 12:27:02,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1848 states to 1848 states and 2341 transitions. [2021-11-23 12:27:02,715 INFO L78 Accepts]: Start accepts. Automaton has 1848 states and 2341 transitions. Word has length 81 [2021-11-23 12:27:02,716 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 12:27:02,716 INFO L470 AbstractCegarLoop]: Abstraction has 1848 states and 2341 transitions. [2021-11-23 12:27:02,716 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 12:27:02,716 INFO L276 IsEmpty]: Start isEmpty. Operand 1848 states and 2341 transitions. [2021-11-23 12:27:02,717 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2021-11-23 12:27:02,717 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 12:27:02,717 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 12:27:02,754 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a263380-a25e-4b80-93b0-648fd11cace3/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2021-11-23 12:27:02,931 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a263380-a25e-4b80-93b0-648fd11cace3/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2021-11-23 12:27:02,932 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 29 more)] === [2021-11-23 12:27:02,932 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 12:27:02,932 INFO L85 PathProgramCache]: Analyzing trace with hash 2123071426, now seen corresponding path program 1 times [2021-11-23 12:27:02,932 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 12:27:02,932 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [497300402] [2021-11-23 12:27:02,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 12:27:02,932 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 12:27:02,948 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-23 12:27:02,948 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [506501387] [2021-11-23 12:27:02,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 12:27:02,949 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 12:27:02,949 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a263380-a25e-4b80-93b0-648fd11cace3/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 12:27:02,950 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a263380-a25e-4b80-93b0-648fd11cace3/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 12:27:02,965 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a263380-a25e-4b80-93b0-648fd11cace3/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2021-11-23 12:27:03,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 12:27:03,190 INFO L263 TraceCheckSpWp]: Trace formula consists of 362 conjuncts, 26 conjunts are in the unsatisfiable core [2021-11-23 12:27:03,193 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 12:27:03,417 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 12:27:03,417 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-23 12:27:03,417 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 12:27:03,418 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [497300402] [2021-11-23 12:27:03,418 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-23 12:27:03,418 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [506501387] [2021-11-23 12:27:03,418 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [506501387] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 12:27:03,418 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 12:27:03,418 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-23 12:27:03,419 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [722512791] [2021-11-23 12:27:03,419 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 12:27:03,419 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-23 12:27:03,419 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 12:27:03,420 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-23 12:27:03,420 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-11-23 12:27:03,420 INFO L87 Difference]: Start difference. First operand 1848 states and 2341 transitions. Second operand has 8 states, 8 states have (on average 10.375) internal successors, (83), 8 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 12:27:04,119 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 12:27:04,119 INFO L93 Difference]: Finished difference Result 4567 states and 5831 transitions. [2021-11-23 12:27:04,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-11-23 12:27:04,120 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.375) internal successors, (83), 8 states have internal predecessors, (83), 0 states have call successors, (0), 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 83 [2021-11-23 12:27:04,120 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 12:27:04,135 INFO L225 Difference]: With dead ends: 4567 [2021-11-23 12:27:04,136 INFO L226 Difference]: Without dead ends: 2782 [2021-11-23 12:27:04,140 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 80 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=113, Invalid=229, Unknown=0, NotChecked=0, Total=342 [2021-11-23 12:27:04,142 INFO L933 BasicCegarLoop]: 368 mSDtfsCounter, 1489 mSDsluCounter, 1435 mSDsCounter, 0 mSdLazyCounter, 240 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1489 SdHoareTripleChecker+Valid, 1803 SdHoareTripleChecker+Invalid, 264 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 240 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-11-23 12:27:04,142 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1489 Valid, 1803 Invalid, 264 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 240 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-11-23 12:27:04,146 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2782 states. [2021-11-23 12:27:04,208 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2782 to 1854. [2021-11-23 12:27:04,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1854 states, 1827 states have (on average 1.2846195949644226) internal successors, (2347), 1853 states have internal predecessors, (2347), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 12:27:04,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1854 states to 1854 states and 2347 transitions. [2021-11-23 12:27:04,218 INFO L78 Accepts]: Start accepts. Automaton has 1854 states and 2347 transitions. Word has length 83 [2021-11-23 12:27:04,218 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 12:27:04,219 INFO L470 AbstractCegarLoop]: Abstraction has 1854 states and 2347 transitions. [2021-11-23 12:27:04,219 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.375) internal successors, (83), 8 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 12:27:04,219 INFO L276 IsEmpty]: Start isEmpty. Operand 1854 states and 2347 transitions. [2021-11-23 12:27:04,220 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2021-11-23 12:27:04,220 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 12:27:04,220 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 12:27:04,258 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a263380-a25e-4b80-93b0-648fd11cace3/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2021-11-23 12:27:04,435 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a263380-a25e-4b80-93b0-648fd11cace3/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2021-11-23 12:27:04,436 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 29 more)] === [2021-11-23 12:27:04,436 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 12:27:04,436 INFO L85 PathProgramCache]: Analyzing trace with hash -2037508069, now seen corresponding path program 1 times [2021-11-23 12:27:04,436 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 12:27:04,436 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [42573045] [2021-11-23 12:27:04,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 12:27:04,437 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 12:27:04,451 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-23 12:27:04,451 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [390593027] [2021-11-23 12:27:04,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 12:27:04,451 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 12:27:04,452 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a263380-a25e-4b80-93b0-648fd11cace3/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 12:27:04,452 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a263380-a25e-4b80-93b0-648fd11cace3/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 12:27:04,472 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a263380-a25e-4b80-93b0-648fd11cace3/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2021-11-23 12:27:05,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 12:27:05,026 INFO L263 TraceCheckSpWp]: Trace formula consists of 368 conjuncts, 26 conjunts are in the unsatisfiable core [2021-11-23 12:27:05,028 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 12:27:05,247 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 12:27:05,247 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 12:27:05,424 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 12:27:05,424 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 12:27:05,424 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [42573045] [2021-11-23 12:27:05,424 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-23 12:27:05,425 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [390593027] [2021-11-23 12:27:05,425 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [390593027] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-23 12:27:05,425 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-11-23 12:27:05,425 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 5] total 12 [2021-11-23 12:27:05,425 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1651860768] [2021-11-23 12:27:05,425 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-11-23 12:27:05,426 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-23 12:27:05,426 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 12:27:05,426 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-23 12:27:05,427 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2021-11-23 12:27:05,427 INFO L87 Difference]: Start difference. First operand 1854 states and 2347 transitions. Second operand has 12 states, 12 states have (on average 8.583333333333334) internal successors, (103), 12 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 12:27:06,877 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 12:27:06,877 INFO L93 Difference]: Finished difference Result 5462 states and 6969 transitions. [2021-11-23 12:27:06,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-11-23 12:27:06,878 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 8.583333333333334) internal successors, (103), 12 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 84 [2021-11-23 12:27:06,878 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 12:27:06,897 INFO L225 Difference]: With dead ends: 5462 [2021-11-23 12:27:06,897 INFO L226 Difference]: Without dead ends: 3672 [2021-11-23 12:27:06,901 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 201 GetRequests, 164 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 340 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=432, Invalid=1050, Unknown=0, NotChecked=0, Total=1482 [2021-11-23 12:27:06,902 INFO L933 BasicCegarLoop]: 376 mSDtfsCounter, 3015 mSDsluCounter, 2509 mSDsCounter, 0 mSdLazyCounter, 399 mSolverCounterSat, 107 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3015 SdHoareTripleChecker+Valid, 2885 SdHoareTripleChecker+Invalid, 506 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 107 IncrementalHoareTripleChecker+Valid, 399 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2021-11-23 12:27:06,902 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3015 Valid, 2885 Invalid, 506 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [107 Valid, 399 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2021-11-23 12:27:06,908 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3672 states. [2021-11-23 12:27:07,018 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3672 to 1880. [2021-11-23 12:27:07,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1880 states, 1853 states have (on average 1.280626011872639) internal successors, (2373), 1879 states have internal predecessors, (2373), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 12:27:07,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1880 states to 1880 states and 2373 transitions. [2021-11-23 12:27:07,029 INFO L78 Accepts]: Start accepts. Automaton has 1880 states and 2373 transitions. Word has length 84 [2021-11-23 12:27:07,029 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 12:27:07,029 INFO L470 AbstractCegarLoop]: Abstraction has 1880 states and 2373 transitions. [2021-11-23 12:27:07,029 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 8.583333333333334) internal successors, (103), 12 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 12:27:07,030 INFO L276 IsEmpty]: Start isEmpty. Operand 1880 states and 2373 transitions. [2021-11-23 12:27:07,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2021-11-23 12:27:07,031 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 12:27:07,031 INFO L514 BasicCegarLoop]: trace histogram [4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 12:27:07,072 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a263380-a25e-4b80-93b0-648fd11cace3/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2021-11-23 12:27:07,255 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a263380-a25e-4b80-93b0-648fd11cace3/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2021-11-23 12:27:07,256 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 29 more)] === [2021-11-23 12:27:07,256 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 12:27:07,256 INFO L85 PathProgramCache]: Analyzing trace with hash -1900832350, now seen corresponding path program 1 times [2021-11-23 12:27:07,256 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 12:27:07,256 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1414492186] [2021-11-23 12:27:07,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 12:27:07,257 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 12:27:07,274 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-23 12:27:07,275 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2068282693] [2021-11-23 12:27:07,275 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 12:27:07,275 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 12:27:07,275 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a263380-a25e-4b80-93b0-648fd11cace3/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 12:27:07,276 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a263380-a25e-4b80-93b0-648fd11cace3/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 12:27:07,315 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a263380-a25e-4b80-93b0-648fd11cace3/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2021-11-23 12:27:07,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 12:27:07,467 INFO L263 TraceCheckSpWp]: Trace formula consists of 398 conjuncts, 29 conjunts are in the unsatisfiable core [2021-11-23 12:27:07,470 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 12:27:07,693 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-23 12:27:07,693 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 12:27:07,955 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-23 12:27:07,955 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 12:27:07,955 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1414492186] [2021-11-23 12:27:07,955 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-23 12:27:07,955 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2068282693] [2021-11-23 12:27:07,955 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2068282693] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-23 12:27:07,956 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-11-23 12:27:07,956 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 8] total 17 [2021-11-23 12:27:07,956 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1902571866] [2021-11-23 12:27:07,956 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-11-23 12:27:07,956 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2021-11-23 12:27:07,956 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 12:27:07,957 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-11-23 12:27:07,957 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=215, Unknown=0, NotChecked=0, Total=272 [2021-11-23 12:27:07,957 INFO L87 Difference]: Start difference. First operand 1880 states and 2373 transitions. Second operand has 17 states, 17 states have (on average 6.0588235294117645) internal successors, (103), 17 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 12:27:11,880 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 12:27:11,881 INFO L93 Difference]: Finished difference Result 5573 states and 7116 transitions. [2021-11-23 12:27:11,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2021-11-23 12:27:11,882 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 6.0588235294117645) internal successors, (103), 17 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 89 [2021-11-23 12:27:11,882 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 12:27:11,900 INFO L225 Difference]: With dead ends: 5573 [2021-11-23 12:27:11,900 INFO L226 Difference]: Without dead ends: 3705 [2021-11-23 12:27:11,905 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 224 GetRequests, 168 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 811 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=890, Invalid=2416, Unknown=0, NotChecked=0, Total=3306 [2021-11-23 12:27:11,906 INFO L933 BasicCegarLoop]: 385 mSDtfsCounter, 2122 mSDsluCounter, 4108 mSDsCounter, 0 mSdLazyCounter, 490 mSolverCounterSat, 153 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2122 SdHoareTripleChecker+Valid, 4493 SdHoareTripleChecker+Invalid, 643 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 153 IncrementalHoareTripleChecker+Valid, 490 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2021-11-23 12:27:11,906 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2122 Valid, 4493 Invalid, 643 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [153 Valid, 490 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2021-11-23 12:27:11,911 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3705 states. [2021-11-23 12:27:11,989 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3705 to 1907. [2021-11-23 12:27:11,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1907 states, 1880 states have (on average 1.272872340425532) internal successors, (2393), 1906 states have internal predecessors, (2393), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 12:27:11,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1907 states to 1907 states and 2393 transitions. [2021-11-23 12:27:12,000 INFO L78 Accepts]: Start accepts. Automaton has 1907 states and 2393 transitions. Word has length 89 [2021-11-23 12:27:12,000 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 12:27:12,000 INFO L470 AbstractCegarLoop]: Abstraction has 1907 states and 2393 transitions. [2021-11-23 12:27:12,000 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 6.0588235294117645) internal successors, (103), 17 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 12:27:12,001 INFO L276 IsEmpty]: Start isEmpty. Operand 1907 states and 2393 transitions. [2021-11-23 12:27:12,001 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2021-11-23 12:27:12,002 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 12:27:12,002 INFO L514 BasicCegarLoop]: trace histogram [10, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 12:27:12,036 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a263380-a25e-4b80-93b0-648fd11cace3/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2021-11-23 12:27:12,215 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a263380-a25e-4b80-93b0-648fd11cace3/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2021-11-23 12:27:12,216 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 29 more)] === [2021-11-23 12:27:12,216 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 12:27:12,216 INFO L85 PathProgramCache]: Analyzing trace with hash 1236929471, now seen corresponding path program 2 times [2021-11-23 12:27:12,216 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 12:27:12,216 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1023709678] [2021-11-23 12:27:12,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 12:27:12,217 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 12:27:12,232 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-23 12:27:12,232 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1305390666] [2021-11-23 12:27:12,232 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-23 12:27:12,233 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 12:27:12,233 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a263380-a25e-4b80-93b0-648fd11cace3/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 12:27:12,234 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a263380-a25e-4b80-93b0-648fd11cace3/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 12:27:12,253 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a263380-a25e-4b80-93b0-648fd11cace3/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process