./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/bitvector/byte_add-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_c0077ff5-6e92-4814-882f-4264ce07dc83/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_c0077ff5-6e92-4814-882f-4264ce07dc83/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_c0077ff5-6e92-4814-882f-4264ce07dc83/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_c0077ff5-6e92-4814-882f-4264ce07dc83/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/bitvector/byte_add-2.i -s /tmp/vcloud-vcloud-master/worker/run_dir_c0077ff5-6e92-4814-882f-4264ce07dc83/bin/uautomizer/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_c0077ff5-6e92-4814-882f-4264ce07dc83/bin/uautomizer --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 57155ec4d1c294d255486bcf60492b490ef9efa5 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Using bit-precise analysis No suitable file found in config dir /tmp/vcloud-vcloud-master/worker/run_dir_c0077ff5-6e92-4814-882f-4264ce07dc83/bin/uautomizer/config using search string *Overflow*32bit*_Bitvector*.epf No suitable settings file found using Overflow*32bit*_Bitvector ERROR: UNSUPPORTED PROPERTY Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-29 22:41:38,049 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-29 22:41:38,051 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-29 22:41:38,108 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-29 22:41:38,109 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-29 22:41:38,113 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-29 22:41:38,135 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-29 22:41:38,142 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-29 22:41:38,145 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-29 22:41:38,154 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-29 22:41:38,155 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-29 22:41:38,157 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-29 22:41:38,158 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-29 22:41:38,162 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-29 22:41:38,164 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-29 22:41:38,167 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-29 22:41:38,168 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-29 22:41:38,169 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-29 22:41:38,176 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-29 22:41:38,186 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-29 22:41:38,188 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-29 22:41:38,190 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-29 22:41:38,192 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-29 22:41:38,193 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-29 22:41:38,202 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-29 22:41:38,202 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-29 22:41:38,203 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-29 22:41:38,205 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-29 22:41:38,206 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-29 22:41:38,207 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-29 22:41:38,207 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-29 22:41:38,209 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-29 22:41:38,211 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-29 22:41:38,212 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-29 22:41:38,213 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-29 22:41:38,213 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-29 22:41:38,214 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-29 22:41:38,215 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-29 22:41:38,215 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-29 22:41:38,216 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-29 22:41:38,217 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-29 22:41:38,220 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_c0077ff5-6e92-4814-882f-4264ce07dc83/bin/uautomizer/config/svcomp-Overflow-32bit-Automizer_Default.epf [2020-11-29 22:41:38,261 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-29 22:41:38,261 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-29 22:41:38,263 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-29 22:41:38,263 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-29 22:41:38,263 INFO L138 SettingsManager]: * Use SBE=true [2020-11-29 22:41:38,264 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-29 22:41:38,264 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-29 22:41:38,264 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-29 22:41:38,265 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-29 22:41:38,265 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-29 22:41:38,266 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-29 22:41:38,266 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-29 22:41:38,267 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-29 22:41:38,267 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-29 22:41:38,267 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2020-11-29 22:41:38,267 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-29 22:41:38,267 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-29 22:41:38,268 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-29 22:41:38,268 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-29 22:41:38,270 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-29 22:41:38,270 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-29 22:41:38,274 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-29 22:41:38,276 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-29 22:41:38,277 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-29 22:41:38,277 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-29 22:41:38,277 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-29 22:41:38,277 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-29 22:41:38,278 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-29 22:41:38,278 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-29 22:41:38,278 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-29 22:41:38,278 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-29 22:41:38,279 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-vcloud-master/worker/run_dir_c0077ff5-6e92-4814-882f-4264ce07dc83/bin/uautomizer/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_c0077ff5-6e92-4814-882f-4264ce07dc83/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 57155ec4d1c294d255486bcf60492b490ef9efa5 [2020-11-29 22:41:38,583 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-29 22:41:38,618 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-29 22:41:38,620 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-29 22:41:38,621 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-29 22:41:38,623 INFO L275 PluginConnector]: CDTParser initialized [2020-11-29 22:41:38,624 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_c0077ff5-6e92-4814-882f-4264ce07dc83/bin/uautomizer/../../sv-benchmarks/c/bitvector/byte_add-2.i [2020-11-29 22:41:38,706 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_c0077ff5-6e92-4814-882f-4264ce07dc83/bin/uautomizer/data/cae31017f/d30d50b84aab4d31b95b2ab417f910fc/FLAG53b7b5390 [2020-11-29 22:41:39,135 INFO L306 CDTParser]: Found 1 translation units. [2020-11-29 22:41:39,136 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_c0077ff5-6e92-4814-882f-4264ce07dc83/sv-benchmarks/c/bitvector/byte_add-2.i [2020-11-29 22:41:39,149 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_c0077ff5-6e92-4814-882f-4264ce07dc83/bin/uautomizer/data/cae31017f/d30d50b84aab4d31b95b2ab417f910fc/FLAG53b7b5390 [2020-11-29 22:41:39,516 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_c0077ff5-6e92-4814-882f-4264ce07dc83/bin/uautomizer/data/cae31017f/d30d50b84aab4d31b95b2ab417f910fc [2020-11-29 22:41:39,518 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-29 22:41:39,520 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-29 22:41:39,522 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-29 22:41:39,522 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-29 22:41:39,525 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-29 22:41:39,526 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 10:41:39" (1/1) ... [2020-11-29 22:41:39,528 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@14bb12c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:41:39, skipping insertion in model container [2020-11-29 22:41:39,528 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 10:41:39" (1/1) ... [2020-11-29 22:41:39,535 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-29 22:41:39,557 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-29 22:41:39,817 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 22:41:39,836 INFO L203 MainTranslator]: Completed pre-run [2020-11-29 22:41:39,869 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 22:41:39,883 INFO L208 MainTranslator]: Completed translation [2020-11-29 22:41:39,884 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:41:39 WrapperNode [2020-11-29 22:41:39,884 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-29 22:41:39,885 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-29 22:41:39,886 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-29 22:41:39,886 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-29 22:41:39,894 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:41:39" (1/1) ... [2020-11-29 22:41:39,902 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:41:39" (1/1) ... [2020-11-29 22:41:39,929 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-29 22:41:39,930 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-29 22:41:39,931 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-29 22:41:39,931 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-29 22:41:39,940 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:41:39" (1/1) ... [2020-11-29 22:41:39,940 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:41:39" (1/1) ... [2020-11-29 22:41:39,952 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:41:39" (1/1) ... [2020-11-29 22:41:39,958 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:41:39" (1/1) ... [2020-11-29 22:41:39,964 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:41:39" (1/1) ... [2020-11-29 22:41:39,984 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:41:39" (1/1) ... [2020-11-29 22:41:39,986 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:41:39" (1/1) ... [2020-11-29 22:41:39,988 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-29 22:41:39,989 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-29 22:41:39,990 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-29 22:41:39,990 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-29 22:41:39,991 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:41:39" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c0077ff5-6e92-4814-882f-4264ce07dc83/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-29 22:41:40,064 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-29 22:41:40,065 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-29 22:41:40,065 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-29 22:41:40,065 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-29 22:41:40,660 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-29 22:41:40,660 INFO L298 CfgBuilder]: Removed 12 assume(true) statements. [2020-11-29 22:41:40,662 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 10:41:40 BoogieIcfgContainer [2020-11-29 22:41:40,662 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-29 22:41:40,664 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-29 22:41:40,664 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-29 22:41:40,668 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-29 22:41:40,668 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 10:41:39" (1/3) ... [2020-11-29 22:41:40,669 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a5ef82a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 10:41:40, skipping insertion in model container [2020-11-29 22:41:40,669 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:41:39" (2/3) ... [2020-11-29 22:41:40,670 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a5ef82a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 10:41:40, skipping insertion in model container [2020-11-29 22:41:40,670 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 10:41:40" (3/3) ... [2020-11-29 22:41:40,672 INFO L111 eAbstractionObserver]: Analyzing ICFG byte_add-2.i [2020-11-29 22:41:40,689 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-29 22:41:40,695 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 38 error locations. [2020-11-29 22:41:40,717 INFO L253 AbstractCegarLoop]: Starting to check reachability of 38 error locations. [2020-11-29 22:41:40,766 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-29 22:41:40,768 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-29 22:41:40,769 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-29 22:41:40,769 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-29 22:41:40,769 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-29 22:41:40,769 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-29 22:41:40,770 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-29 22:41:40,770 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-29 22:41:40,804 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states. [2020-11-29 22:41:40,810 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-11-29 22:41:40,811 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 22:41:40,811 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2020-11-29 22:41:40,812 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr37ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-11-29 22:41:40,818 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:41:40,818 INFO L82 PathProgramCache]: Analyzing trace with hash 925604, now seen corresponding path program 1 times [2020-11-29 22:41:40,827 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 22:41:40,828 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [488099246] [2020-11-29 22:41:40,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 22:41:40,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:41:41,014 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 22:41:41,015 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [488099246] [2020-11-29 22:41:41,016 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 22:41:41,017 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-11-29 22:41:41,018 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1488806342] [2020-11-29 22:41:41,022 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-11-29 22:41:41,022 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 22:41:41,039 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-29 22:41:41,040 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-29 22:41:41,042 INFO L87 Difference]: Start difference. First operand 116 states. Second operand 2 states. [2020-11-29 22:41:41,079 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 22:41:41,079 INFO L93 Difference]: Finished difference Result 138 states and 182 transitions. [2020-11-29 22:41:41,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-29 22:41:41,081 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 4 [2020-11-29 22:41:41,081 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 22:41:41,102 INFO L225 Difference]: With dead ends: 138 [2020-11-29 22:41:41,104 INFO L226 Difference]: Without dead ends: 69 [2020-11-29 22:41:41,108 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-29 22:41:41,125 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2020-11-29 22:41:41,154 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 69. [2020-11-29 22:41:41,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 69 states. [2020-11-29 22:41:41,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 95 transitions. [2020-11-29 22:41:41,162 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 95 transitions. Word has length 4 [2020-11-29 22:41:41,163 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 22:41:41,164 INFO L481 AbstractCegarLoop]: Abstraction has 69 states and 95 transitions. [2020-11-29 22:41:41,164 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-11-29 22:41:41,164 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 95 transitions. [2020-11-29 22:41:41,165 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-11-29 22:41:41,166 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 22:41:41,167 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 22:41:41,167 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-29 22:41:41,168 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr37ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-11-29 22:41:41,171 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:41:41,171 INFO L82 PathProgramCache]: Analyzing trace with hash 1944470950, now seen corresponding path program 1 times [2020-11-29 22:41:41,171 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 22:41:41,172 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1187916001] [2020-11-29 22:41:41,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 22:41:41,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:41:41,316 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 22:41:41,316 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1187916001] [2020-11-29 22:41:41,316 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 22:41:41,316 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 22:41:41,317 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [710470860] [2020-11-29 22:41:41,318 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 22:41:41,318 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 22:41:41,319 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 22:41:41,319 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 22:41:41,319 INFO L87 Difference]: Start difference. First operand 69 states and 95 transitions. Second operand 3 states. [2020-11-29 22:41:41,571 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 22:41:41,571 INFO L93 Difference]: Finished difference Result 145 states and 212 transitions. [2020-11-29 22:41:41,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 22:41:41,572 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 13 [2020-11-29 22:41:41,572 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 22:41:41,574 INFO L225 Difference]: With dead ends: 145 [2020-11-29 22:41:41,574 INFO L226 Difference]: Without dead ends: 98 [2020-11-29 22:41:41,575 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 22:41:41,576 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2020-11-29 22:41:41,583 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 94. [2020-11-29 22:41:41,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 94 states. [2020-11-29 22:41:41,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 124 transitions. [2020-11-29 22:41:41,585 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 124 transitions. Word has length 13 [2020-11-29 22:41:41,585 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 22:41:41,585 INFO L481 AbstractCegarLoop]: Abstraction has 94 states and 124 transitions. [2020-11-29 22:41:41,585 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 22:41:41,586 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 124 transitions. [2020-11-29 22:41:41,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-11-29 22:41:41,587 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 22:41:41,587 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 22:41:41,587 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-29 22:41:41,588 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr37ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-11-29 22:41:41,588 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:41:41,588 INFO L82 PathProgramCache]: Analyzing trace with hash 565405448, now seen corresponding path program 1 times [2020-11-29 22:41:41,588 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 22:41:41,589 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2122402820] [2020-11-29 22:41:41,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 22:41:41,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:41:41,702 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-11-29 22:41:41,703 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2122402820] [2020-11-29 22:41:41,703 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 22:41:41,703 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-29 22:41:41,703 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1892014919] [2020-11-29 22:41:41,704 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-29 22:41:41,704 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 22:41:41,704 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-29 22:41:41,705 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-29 22:41:41,705 INFO L87 Difference]: Start difference. First operand 94 states and 124 transitions. Second operand 4 states. [2020-11-29 22:41:42,006 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 22:41:42,006 INFO L93 Difference]: Finished difference Result 221 states and 296 transitions. [2020-11-29 22:41:42,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-29 22:41:42,007 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 20 [2020-11-29 22:41:42,007 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 22:41:42,009 INFO L225 Difference]: With dead ends: 221 [2020-11-29 22:41:42,009 INFO L226 Difference]: Without dead ends: 164 [2020-11-29 22:41:42,010 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-29 22:41:42,010 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 164 states. [2020-11-29 22:41:42,025 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 164 to 104. [2020-11-29 22:41:42,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 104 states. [2020-11-29 22:41:42,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 135 transitions. [2020-11-29 22:41:42,037 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 135 transitions. Word has length 20 [2020-11-29 22:41:42,038 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 22:41:42,038 INFO L481 AbstractCegarLoop]: Abstraction has 104 states and 135 transitions. [2020-11-29 22:41:42,039 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-29 22:41:42,039 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 135 transitions. [2020-11-29 22:41:42,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-11-29 22:41:42,041 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 22:41:42,042 INFO L422 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] [2020-11-29 22:41:42,042 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-29 22:41:42,043 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr37ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-11-29 22:41:42,043 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:41:42,043 INFO L82 PathProgramCache]: Analyzing trace with hash -1055427225, now seen corresponding path program 1 times [2020-11-29 22:41:42,044 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 22:41:42,044 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [782403627] [2020-11-29 22:41:42,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 22:41:42,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:41:42,186 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-11-29 22:41:42,186 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [782403627] [2020-11-29 22:41:42,186 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 22:41:42,187 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-29 22:41:42,187 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [323081837] [2020-11-29 22:41:42,187 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-29 22:41:42,187 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 22:41:42,188 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-29 22:41:42,188 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-29 22:41:42,188 INFO L87 Difference]: Start difference. First operand 104 states and 135 transitions. Second operand 4 states. [2020-11-29 22:41:42,483 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 22:41:42,484 INFO L93 Difference]: Finished difference Result 259 states and 340 transitions. [2020-11-29 22:41:42,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-29 22:41:42,484 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 23 [2020-11-29 22:41:42,485 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 22:41:42,486 INFO L225 Difference]: With dead ends: 259 [2020-11-29 22:41:42,487 INFO L226 Difference]: Without dead ends: 194 [2020-11-29 22:41:42,488 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-29 22:41:42,488 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 194 states. [2020-11-29 22:41:42,507 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 194 to 120. [2020-11-29 22:41:42,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 120 states. [2020-11-29 22:41:42,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 154 transitions. [2020-11-29 22:41:42,510 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 154 transitions. Word has length 23 [2020-11-29 22:41:42,510 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 22:41:42,510 INFO L481 AbstractCegarLoop]: Abstraction has 120 states and 154 transitions. [2020-11-29 22:41:42,511 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-29 22:41:42,511 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 154 transitions. [2020-11-29 22:41:42,512 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-11-29 22:41:42,513 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 22:41:42,513 INFO L422 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] [2020-11-29 22:41:42,514 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-29 22:41:42,515 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr37ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-11-29 22:41:42,515 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:41:42,516 INFO L82 PathProgramCache]: Analyzing trace with hash -2113419709, now seen corresponding path program 1 times [2020-11-29 22:41:42,516 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 22:41:42,518 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1393393699] [2020-11-29 22:41:42,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 22:41:42,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:41:42,626 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 22:41:42,627 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1393393699] [2020-11-29 22:41:42,627 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [405410209] [2020-11-29 22:41:42,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c0077ff5-6e92-4814-882f-4264ce07dc83/bin/uautomizer/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-29 22:41:42,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:41:42,686 INFO L263 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 4 conjunts are in the unsatisfiable core [2020-11-29 22:41:42,691 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 22:41:42,955 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 22:41:42,955 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-11-29 22:41:42,955 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2020-11-29 22:41:42,956 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [453567416] [2020-11-29 22:41:42,956 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-29 22:41:42,956 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 22:41:42,957 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-29 22:41:42,957 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-11-29 22:41:42,957 INFO L87 Difference]: Start difference. First operand 120 states and 154 transitions. Second operand 4 states. [2020-11-29 22:41:43,396 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 22:41:43,397 INFO L93 Difference]: Finished difference Result 216 states and 307 transitions. [2020-11-29 22:41:43,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-29 22:41:43,397 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 26 [2020-11-29 22:41:43,398 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 22:41:43,399 INFO L225 Difference]: With dead ends: 216 [2020-11-29 22:41:43,399 INFO L226 Difference]: Without dead ends: 169 [2020-11-29 22:41:43,400 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-11-29 22:41:43,400 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 169 states. [2020-11-29 22:41:43,414 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 169 to 145. [2020-11-29 22:41:43,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 145 states. [2020-11-29 22:41:43,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145 states to 145 states and 183 transitions. [2020-11-29 22:41:43,426 INFO L78 Accepts]: Start accepts. Automaton has 145 states and 183 transitions. Word has length 26 [2020-11-29 22:41:43,426 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 22:41:43,427 INFO L481 AbstractCegarLoop]: Abstraction has 145 states and 183 transitions. [2020-11-29 22:41:43,427 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-29 22:41:43,427 INFO L276 IsEmpty]: Start isEmpty. Operand 145 states and 183 transitions. [2020-11-29 22:41:43,428 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2020-11-29 22:41:43,430 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 22:41:43,431 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 22:41:43,644 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-29 22:41:43,645 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr37ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-11-29 22:41:43,645 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:41:43,645 INFO L82 PathProgramCache]: Analyzing trace with hash 1301565703, now seen corresponding path program 1 times [2020-11-29 22:41:43,645 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 22:41:43,646 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [294024832] [2020-11-29 22:41:43,646 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 22:41:43,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:41:43,761 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 22:41:43,761 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [294024832] [2020-11-29 22:41:43,762 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1093212824] [2020-11-29 22:41:43,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c0077ff5-6e92-4814-882f-4264ce07dc83/bin/uautomizer/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-29 22:41:43,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:41:43,819 INFO L263 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 5 conjunts are in the unsatisfiable core [2020-11-29 22:41:43,821 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 22:41:44,008 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-11-29 22:41:44,008 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-11-29 22:41:44,008 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 6 [2020-11-29 22:41:44,009 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2669853] [2020-11-29 22:41:44,009 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-29 22:41:44,009 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 22:41:44,010 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-29 22:41:44,010 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-11-29 22:41:44,010 INFO L87 Difference]: Start difference. First operand 145 states and 183 transitions. Second operand 4 states. [2020-11-29 22:41:44,405 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 22:41:44,405 INFO L93 Difference]: Finished difference Result 290 states and 391 transitions. [2020-11-29 22:41:44,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-29 22:41:44,406 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 33 [2020-11-29 22:41:44,406 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 22:41:44,407 INFO L225 Difference]: With dead ends: 290 [2020-11-29 22:41:44,407 INFO L226 Difference]: Without dead ends: 198 [2020-11-29 22:41:44,408 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 32 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-11-29 22:41:44,409 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 198 states. [2020-11-29 22:41:44,422 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 198 to 170. [2020-11-29 22:41:44,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 170 states. [2020-11-29 22:41:44,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 170 states to 170 states and 212 transitions. [2020-11-29 22:41:44,423 INFO L78 Accepts]: Start accepts. Automaton has 170 states and 212 transitions. Word has length 33 [2020-11-29 22:41:44,424 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 22:41:44,433 INFO L481 AbstractCegarLoop]: Abstraction has 170 states and 212 transitions. [2020-11-29 22:41:44,434 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-29 22:41:44,434 INFO L276 IsEmpty]: Start isEmpty. Operand 170 states and 212 transitions. [2020-11-29 22:41:44,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2020-11-29 22:41:44,436 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 22:41:44,436 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 22:41:44,636 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-29 22:41:44,637 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr37ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-11-29 22:41:44,637 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:41:44,637 INFO L82 PathProgramCache]: Analyzing trace with hash -665492217, now seen corresponding path program 1 times [2020-11-29 22:41:44,638 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 22:41:44,638 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1875442110] [2020-11-29 22:41:44,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 22:41:44,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:41:44,776 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 22:41:44,776 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1875442110] [2020-11-29 22:41:44,777 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [329764738] [2020-11-29 22:41:44,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c0077ff5-6e92-4814-882f-4264ce07dc83/bin/uautomizer/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-29 22:41:44,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:41:44,831 INFO L263 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 5 conjunts are in the unsatisfiable core [2020-11-29 22:41:44,833 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 22:41:44,931 INFO L721 QuantifierPusher]: Run 10 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2020-11-29 22:41:45,100 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2020-11-29 22:41:45,100 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-11-29 22:41:45,100 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 7 [2020-11-29 22:41:45,100 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1200334248] [2020-11-29 22:41:45,101 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-29 22:41:45,101 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 22:41:45,101 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-29 22:41:45,102 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-11-29 22:41:45,102 INFO L87 Difference]: Start difference. First operand 170 states and 212 transitions. Second operand 4 states. [2020-11-29 22:41:45,493 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 22:41:45,493 INFO L93 Difference]: Finished difference Result 340 states and 447 transitions. [2020-11-29 22:41:45,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-29 22:41:45,494 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 40 [2020-11-29 22:41:45,495 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 22:41:45,496 INFO L225 Difference]: With dead ends: 340 [2020-11-29 22:41:45,496 INFO L226 Difference]: Without dead ends: 223 [2020-11-29 22:41:45,497 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 39 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-11-29 22:41:45,498 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 223 states. [2020-11-29 22:41:45,505 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 223 to 195. [2020-11-29 22:41:45,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 195 states. [2020-11-29 22:41:45,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 195 states to 195 states and 241 transitions. [2020-11-29 22:41:45,507 INFO L78 Accepts]: Start accepts. Automaton has 195 states and 241 transitions. Word has length 40 [2020-11-29 22:41:45,507 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 22:41:45,507 INFO L481 AbstractCegarLoop]: Abstraction has 195 states and 241 transitions. [2020-11-29 22:41:45,508 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-29 22:41:45,508 INFO L276 IsEmpty]: Start isEmpty. Operand 195 states and 241 transitions. [2020-11-29 22:41:45,512 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2020-11-29 22:41:45,514 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 22:41:45,515 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 22:41:45,740 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-29 22:41:45,741 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr37ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-11-29 22:41:45,741 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:41:45,741 INFO L82 PathProgramCache]: Analyzing trace with hash 973067587, now seen corresponding path program 1 times [2020-11-29 22:41:45,742 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 22:41:45,742 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [841034960] [2020-11-29 22:41:45,742 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 22:41:45,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:41:45,801 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2020-11-29 22:41:45,802 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [841034960] [2020-11-29 22:41:45,802 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 22:41:45,802 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-29 22:41:45,802 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [512404818] [2020-11-29 22:41:45,803 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 22:41:45,803 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 22:41:45,803 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 22:41:45,804 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 22:41:45,807 INFO L87 Difference]: Start difference. First operand 195 states and 241 transitions. Second operand 3 states. [2020-11-29 22:41:45,817 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 22:41:45,817 INFO L93 Difference]: Finished difference Result 232 states and 282 transitions. [2020-11-29 22:41:45,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 22:41:45,818 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 47 [2020-11-29 22:41:45,819 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 22:41:45,820 INFO L225 Difference]: With dead ends: 232 [2020-11-29 22:41:45,820 INFO L226 Difference]: Without dead ends: 169 [2020-11-29 22:41:45,820 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 22:41:45,821 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 169 states. [2020-11-29 22:41:45,826 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 169 to 169. [2020-11-29 22:41:45,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 169 states. [2020-11-29 22:41:45,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169 states to 169 states and 207 transitions. [2020-11-29 22:41:45,828 INFO L78 Accepts]: Start accepts. Automaton has 169 states and 207 transitions. Word has length 47 [2020-11-29 22:41:45,828 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 22:41:45,828 INFO L481 AbstractCegarLoop]: Abstraction has 169 states and 207 transitions. [2020-11-29 22:41:45,828 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 22:41:45,828 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states and 207 transitions. [2020-11-29 22:41:45,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2020-11-29 22:41:45,829 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 22:41:45,830 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 22:41:45,830 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-11-29 22:41:45,830 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr37ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-11-29 22:41:45,831 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:41:45,831 INFO L82 PathProgramCache]: Analyzing trace with hash 1501188431, now seen corresponding path program 1 times [2020-11-29 22:41:45,831 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 22:41:45,832 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1857357532] [2020-11-29 22:41:45,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 22:41:45,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:41:45,904 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2020-11-29 22:41:45,904 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1857357532] [2020-11-29 22:41:45,904 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 22:41:45,904 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-29 22:41:45,905 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2128092777] [2020-11-29 22:41:45,905 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-29 22:41:45,905 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 22:41:45,905 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-29 22:41:45,906 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-11-29 22:41:45,906 INFO L87 Difference]: Start difference. First operand 169 states and 207 transitions. Second operand 5 states. [2020-11-29 22:41:46,157 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 22:41:46,158 INFO L93 Difference]: Finished difference Result 465 states and 573 transitions. [2020-11-29 22:41:46,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-29 22:41:46,158 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 59 [2020-11-29 22:41:46,159 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 22:41:46,161 INFO L225 Difference]: With dead ends: 465 [2020-11-29 22:41:46,161 INFO L226 Difference]: Without dead ends: 347 [2020-11-29 22:41:46,161 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-11-29 22:41:46,162 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 347 states. [2020-11-29 22:41:46,173 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 347 to 209. [2020-11-29 22:41:46,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 209 states. [2020-11-29 22:41:46,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 209 states to 209 states and 256 transitions. [2020-11-29 22:41:46,175 INFO L78 Accepts]: Start accepts. Automaton has 209 states and 256 transitions. Word has length 59 [2020-11-29 22:41:46,176 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 22:41:46,177 INFO L481 AbstractCegarLoop]: Abstraction has 209 states and 256 transitions. [2020-11-29 22:41:46,177 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-29 22:41:46,177 INFO L276 IsEmpty]: Start isEmpty. Operand 209 states and 256 transitions. [2020-11-29 22:41:46,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2020-11-29 22:41:46,178 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 22:41:46,184 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 22:41:46,185 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-11-29 22:41:46,185 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr37ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-11-29 22:41:46,185 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:41:46,186 INFO L82 PathProgramCache]: Analyzing trace with hash -451056364, now seen corresponding path program 1 times [2020-11-29 22:41:46,186 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 22:41:46,186 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1800081375] [2020-11-29 22:41:46,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 22:41:46,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:41:46,266 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 40 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2020-11-29 22:41:46,266 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1800081375] [2020-11-29 22:41:46,266 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 22:41:46,266 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-29 22:41:46,266 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [57009561] [2020-11-29 22:41:46,267 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-29 22:41:46,267 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 22:41:46,267 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-29 22:41:46,268 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-29 22:41:46,268 INFO L87 Difference]: Start difference. First operand 209 states and 256 transitions. Second operand 4 states. [2020-11-29 22:41:46,354 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 22:41:46,354 INFO L93 Difference]: Finished difference Result 465 states and 569 transitions. [2020-11-29 22:41:46,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-29 22:41:46,355 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 62 [2020-11-29 22:41:46,355 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 22:41:46,357 INFO L225 Difference]: With dead ends: 465 [2020-11-29 22:41:46,357 INFO L226 Difference]: Without dead ends: 307 [2020-11-29 22:41:46,357 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-29 22:41:46,358 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 307 states. [2020-11-29 22:41:46,371 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 307 to 225. [2020-11-29 22:41:46,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 225 states. [2020-11-29 22:41:46,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 225 states to 225 states and 283 transitions. [2020-11-29 22:41:46,372 INFO L78 Accepts]: Start accepts. Automaton has 225 states and 283 transitions. Word has length 62 [2020-11-29 22:41:46,373 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 22:41:46,373 INFO L481 AbstractCegarLoop]: Abstraction has 225 states and 283 transitions. [2020-11-29 22:41:46,373 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-29 22:41:46,373 INFO L276 IsEmpty]: Start isEmpty. Operand 225 states and 283 transitions. [2020-11-29 22:41:46,374 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2020-11-29 22:41:46,374 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 22:41:46,375 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 22:41:46,375 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-11-29 22:41:46,375 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr37ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-11-29 22:41:46,376 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:41:46,376 INFO L82 PathProgramCache]: Analyzing trace with hash -1517528546, now seen corresponding path program 1 times [2020-11-29 22:41:46,376 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 22:41:46,377 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1209121968] [2020-11-29 22:41:46,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 22:41:46,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:41:46,541 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 57 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2020-11-29 22:41:46,541 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1209121968] [2020-11-29 22:41:46,542 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 22:41:46,542 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-11-29 22:41:46,542 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [822863522] [2020-11-29 22:41:46,542 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-29 22:41:46,543 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 22:41:46,543 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-29 22:41:46,544 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-11-29 22:41:46,544 INFO L87 Difference]: Start difference. First operand 225 states and 283 transitions. Second operand 6 states. [2020-11-29 22:41:46,952 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 22:41:46,952 INFO L93 Difference]: Finished difference Result 619 states and 780 transitions. [2020-11-29 22:41:46,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-11-29 22:41:46,952 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 68 [2020-11-29 22:41:46,953 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 22:41:46,955 INFO L225 Difference]: With dead ends: 619 [2020-11-29 22:41:46,955 INFO L226 Difference]: Without dead ends: 440 [2020-11-29 22:41:46,956 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2020-11-29 22:41:46,957 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 440 states. [2020-11-29 22:41:46,974 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 440 to 361. [2020-11-29 22:41:46,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 361 states. [2020-11-29 22:41:46,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 361 states to 361 states and 453 transitions. [2020-11-29 22:41:46,976 INFO L78 Accepts]: Start accepts. Automaton has 361 states and 453 transitions. Word has length 68 [2020-11-29 22:41:46,976 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 22:41:46,976 INFO L481 AbstractCegarLoop]: Abstraction has 361 states and 453 transitions. [2020-11-29 22:41:46,976 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-29 22:41:46,977 INFO L276 IsEmpty]: Start isEmpty. Operand 361 states and 453 transitions. [2020-11-29 22:41:46,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2020-11-29 22:41:46,978 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 22:41:46,978 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 22:41:46,978 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-11-29 22:41:46,978 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr37ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-11-29 22:41:46,979 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:41:46,979 INFO L82 PathProgramCache]: Analyzing trace with hash 2020673026, now seen corresponding path program 1 times [2020-11-29 22:41:46,979 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 22:41:46,979 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2123623654] [2020-11-29 22:41:46,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 22:41:47,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:41:47,061 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 46 proven. 1 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2020-11-29 22:41:47,061 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2123623654] [2020-11-29 22:41:47,061 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [758629717] [2020-11-29 22:41:47,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c0077ff5-6e92-4814-882f-4264ce07dc83/bin/uautomizer/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-29 22:41:47,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:41:47,131 INFO L263 TraceCheckSpWp]: Trace formula consists of 170 conjuncts, 4 conjunts are in the unsatisfiable core [2020-11-29 22:41:47,144 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 22:41:47,199 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 46 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2020-11-29 22:41:47,200 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-11-29 22:41:47,200 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 4 [2020-11-29 22:41:47,203 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [897176049] [2020-11-29 22:41:47,203 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-29 22:41:47,204 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 22:41:47,204 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-29 22:41:47,207 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-29 22:41:47,207 INFO L87 Difference]: Start difference. First operand 361 states and 453 transitions. Second operand 4 states. [2020-11-29 22:41:47,368 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 22:41:47,368 INFO L93 Difference]: Finished difference Result 960 states and 1198 transitions. [2020-11-29 22:41:47,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-29 22:41:47,369 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 68 [2020-11-29 22:41:47,369 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 22:41:47,373 INFO L225 Difference]: With dead ends: 960 [2020-11-29 22:41:47,373 INFO L226 Difference]: Without dead ends: 616 [2020-11-29 22:41:47,374 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 67 SyntacticMatches, 3 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-29 22:41:47,375 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 616 states. [2020-11-29 22:41:47,391 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 616 to 496. [2020-11-29 22:41:47,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 496 states. [2020-11-29 22:41:47,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 496 states to 496 states and 623 transitions. [2020-11-29 22:41:47,394 INFO L78 Accepts]: Start accepts. Automaton has 496 states and 623 transitions. Word has length 68 [2020-11-29 22:41:47,394 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 22:41:47,394 INFO L481 AbstractCegarLoop]: Abstraction has 496 states and 623 transitions. [2020-11-29 22:41:47,394 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-29 22:41:47,394 INFO L276 IsEmpty]: Start isEmpty. Operand 496 states and 623 transitions. [2020-11-29 22:41:47,395 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2020-11-29 22:41:47,396 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 22:41:47,396 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 22:41:47,611 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-29 22:41:47,611 INFO L429 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr37ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-11-29 22:41:47,612 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:41:47,612 INFO L82 PathProgramCache]: Analyzing trace with hash 579694859, now seen corresponding path program 1 times [2020-11-29 22:41:47,612 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 22:41:47,612 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1118313786] [2020-11-29 22:41:47,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 22:41:47,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:41:47,706 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 57 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2020-11-29 22:41:47,709 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1118313786] [2020-11-29 22:41:47,709 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 22:41:47,709 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-11-29 22:41:47,709 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2015454333] [2020-11-29 22:41:47,710 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-29 22:41:47,710 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 22:41:47,711 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-29 22:41:47,711 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-11-29 22:41:47,711 INFO L87 Difference]: Start difference. First operand 496 states and 623 transitions. Second operand 6 states. [2020-11-29 22:41:48,093 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 22:41:48,094 INFO L93 Difference]: Finished difference Result 1194 states and 1490 transitions. [2020-11-29 22:41:48,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-11-29 22:41:48,095 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 68 [2020-11-29 22:41:48,095 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 22:41:48,099 INFO L225 Difference]: With dead ends: 1194 [2020-11-29 22:41:48,099 INFO L226 Difference]: Without dead ends: 717 [2020-11-29 22:41:48,100 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2020-11-29 22:41:48,101 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 717 states. [2020-11-29 22:41:48,123 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 717 to 603. [2020-11-29 22:41:48,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 603 states. [2020-11-29 22:41:48,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 603 states to 603 states and 756 transitions. [2020-11-29 22:41:48,126 INFO L78 Accepts]: Start accepts. Automaton has 603 states and 756 transitions. Word has length 68 [2020-11-29 22:41:48,127 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 22:41:48,127 INFO L481 AbstractCegarLoop]: Abstraction has 603 states and 756 transitions. [2020-11-29 22:41:48,128 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-29 22:41:48,128 INFO L276 IsEmpty]: Start isEmpty. Operand 603 states and 756 transitions. [2020-11-29 22:41:48,131 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2020-11-29 22:41:48,131 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 22:41:48,132 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 22:41:48,132 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-11-29 22:41:48,132 INFO L429 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr37ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-11-29 22:41:48,133 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:41:48,133 INFO L82 PathProgramCache]: Analyzing trace with hash 415029660, now seen corresponding path program 1 times [2020-11-29 22:41:48,133 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 22:41:48,133 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [315259548] [2020-11-29 22:41:48,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 22:41:48,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:41:48,274 INFO L134 CoverageAnalysis]: Checked inductivity of 76 backedges. 56 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2020-11-29 22:41:48,274 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [315259548] [2020-11-29 22:41:48,275 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 22:41:48,275 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-11-29 22:41:48,275 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1626207495] [2020-11-29 22:41:48,275 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-29 22:41:48,276 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 22:41:48,276 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-29 22:41:48,276 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-11-29 22:41:48,277 INFO L87 Difference]: Start difference. First operand 603 states and 756 transitions. Second operand 7 states. [2020-11-29 22:41:48,910 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 22:41:48,910 INFO L93 Difference]: Finished difference Result 1482 states and 1841 transitions. [2020-11-29 22:41:48,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-11-29 22:41:48,911 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 74 [2020-11-29 22:41:48,911 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 22:41:48,916 INFO L225 Difference]: With dead ends: 1482 [2020-11-29 22:41:48,916 INFO L226 Difference]: Without dead ends: 825 [2020-11-29 22:41:48,917 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=51, Invalid=81, Unknown=0, NotChecked=0, Total=132 [2020-11-29 22:41:48,918 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 825 states. [2020-11-29 22:41:48,943 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 825 to 717. [2020-11-29 22:41:48,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 717 states. [2020-11-29 22:41:48,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 717 states to 717 states and 900 transitions. [2020-11-29 22:41:48,946 INFO L78 Accepts]: Start accepts. Automaton has 717 states and 900 transitions. Word has length 74 [2020-11-29 22:41:48,946 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 22:41:48,946 INFO L481 AbstractCegarLoop]: Abstraction has 717 states and 900 transitions. [2020-11-29 22:41:48,947 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-11-29 22:41:48,947 INFO L276 IsEmpty]: Start isEmpty. Operand 717 states and 900 transitions. [2020-11-29 22:41:48,952 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2020-11-29 22:41:48,952 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 22:41:48,952 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 22:41:48,953 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-11-29 22:41:48,953 INFO L429 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr37ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-11-29 22:41:48,953 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:41:48,953 INFO L82 PathProgramCache]: Analyzing trace with hash -78732058, now seen corresponding path program 1 times [2020-11-29 22:41:48,954 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 22:41:48,954 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1762088092] [2020-11-29 22:41:48,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 22:41:48,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:41:49,039 INFO L134 CoverageAnalysis]: Checked inductivity of 76 backedges. 39 proven. 7 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2020-11-29 22:41:49,039 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1762088092] [2020-11-29 22:41:49,039 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2106274071] [2020-11-29 22:41:49,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c0077ff5-6e92-4814-882f-4264ce07dc83/bin/uautomizer/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-29 22:41:49,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:41:49,106 INFO L263 TraceCheckSpWp]: Trace formula consists of 180 conjuncts, 7 conjunts are in the unsatisfiable core [2020-11-29 22:41:49,114 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 22:41:49,134 INFO L134 CoverageAnalysis]: Checked inductivity of 76 backedges. 39 proven. 7 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2020-11-29 22:41:49,134 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-29 22:41:49,134 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 4 [2020-11-29 22:41:49,135 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1688335179] [2020-11-29 22:41:49,136 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-29 22:41:49,136 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 22:41:49,136 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-29 22:41:49,136 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-29 22:41:49,137 INFO L87 Difference]: Start difference. First operand 717 states and 900 transitions. Second operand 5 states. [2020-11-29 22:41:49,357 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 22:41:49,357 INFO L93 Difference]: Finished difference Result 2016 states and 2436 transitions. [2020-11-29 22:41:49,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-29 22:41:49,358 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 74 [2020-11-29 22:41:49,358 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 22:41:49,368 INFO L225 Difference]: With dead ends: 2016 [2020-11-29 22:41:49,369 INFO L226 Difference]: Without dead ends: 1991 [2020-11-29 22:41:49,371 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 75 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-11-29 22:41:49,374 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1991 states. [2020-11-29 22:41:49,413 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1991 to 993. [2020-11-29 22:41:49,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 993 states. [2020-11-29 22:41:49,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 993 states to 993 states and 1352 transitions. [2020-11-29 22:41:49,418 INFO L78 Accepts]: Start accepts. Automaton has 993 states and 1352 transitions. Word has length 74 [2020-11-29 22:41:49,418 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 22:41:49,418 INFO L481 AbstractCegarLoop]: Abstraction has 993 states and 1352 transitions. [2020-11-29 22:41:49,418 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-29 22:41:49,418 INFO L276 IsEmpty]: Start isEmpty. Operand 993 states and 1352 transitions. [2020-11-29 22:41:49,419 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2020-11-29 22:41:49,419 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 22:41:49,420 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 22:41:49,636 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2020-11-29 22:41:49,636 INFO L429 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr37ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-11-29 22:41:49,637 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:41:49,637 INFO L82 PathProgramCache]: Analyzing trace with hash -2110504499, now seen corresponding path program 1 times [2020-11-29 22:41:49,637 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 22:41:49,637 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1077485257] [2020-11-29 22:41:49,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 22:41:49,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:41:49,805 INFO L134 CoverageAnalysis]: Checked inductivity of 76 backedges. 58 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2020-11-29 22:41:49,806 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1077485257] [2020-11-29 22:41:49,806 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 22:41:49,806 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-11-29 22:41:49,806 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [970073155] [2020-11-29 22:41:49,807 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-29 22:41:49,807 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 22:41:49,807 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-29 22:41:49,808 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-11-29 22:41:49,808 INFO L87 Difference]: Start difference. First operand 993 states and 1352 transitions. Second operand 7 states. [2020-11-29 22:41:50,405 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 22:41:50,406 INFO L93 Difference]: Finished difference Result 2272 states and 3078 transitions. [2020-11-29 22:41:50,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-11-29 22:41:50,406 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 74 [2020-11-29 22:41:50,407 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 22:41:50,414 INFO L225 Difference]: With dead ends: 2272 [2020-11-29 22:41:50,414 INFO L226 Difference]: Without dead ends: 1264 [2020-11-29 22:41:50,415 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=51, Invalid=81, Unknown=0, NotChecked=0, Total=132 [2020-11-29 22:41:50,417 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1264 states. [2020-11-29 22:41:50,475 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1264 to 1141. [2020-11-29 22:41:50,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1141 states. [2020-11-29 22:41:50,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1141 states to 1141 states and 1558 transitions. [2020-11-29 22:41:50,480 INFO L78 Accepts]: Start accepts. Automaton has 1141 states and 1558 transitions. Word has length 74 [2020-11-29 22:41:50,481 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 22:41:50,481 INFO L481 AbstractCegarLoop]: Abstraction has 1141 states and 1558 transitions. [2020-11-29 22:41:50,481 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-11-29 22:41:50,481 INFO L276 IsEmpty]: Start isEmpty. Operand 1141 states and 1558 transitions. [2020-11-29 22:41:50,482 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2020-11-29 22:41:50,483 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 22:41:50,483 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 22:41:50,483 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-11-29 22:41:50,483 INFO L429 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr37ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-11-29 22:41:50,484 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:41:50,484 INFO L82 PathProgramCache]: Analyzing trace with hash 220871532, now seen corresponding path program 1 times [2020-11-29 22:41:50,484 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 22:41:50,484 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [624705781] [2020-11-29 22:41:50,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 22:41:50,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:41:50,629 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 81 trivial. 0 not checked. [2020-11-29 22:41:50,630 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [624705781] [2020-11-29 22:41:50,631 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 22:41:50,631 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-29 22:41:50,631 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [871015431] [2020-11-29 22:41:50,631 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-29 22:41:50,631 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 22:41:50,631 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-29 22:41:50,632 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-29 22:41:50,632 INFO L87 Difference]: Start difference. First operand 1141 states and 1558 transitions. Second operand 5 states. [2020-11-29 22:41:51,063 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 22:41:51,063 INFO L93 Difference]: Finished difference Result 3568 states and 4858 transitions. [2020-11-29 22:41:51,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-29 22:41:51,064 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 80 [2020-11-29 22:41:51,064 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 22:41:51,082 INFO L225 Difference]: With dead ends: 3568 [2020-11-29 22:41:51,083 INFO L226 Difference]: Without dead ends: 3401 [2020-11-29 22:41:51,084 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-11-29 22:41:51,090 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3401 states. [2020-11-29 22:41:51,163 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3401 to 1141. [2020-11-29 22:41:51,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1141 states. [2020-11-29 22:41:51,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1141 states to 1141 states and 1558 transitions. [2020-11-29 22:41:51,167 INFO L78 Accepts]: Start accepts. Automaton has 1141 states and 1558 transitions. Word has length 80 [2020-11-29 22:41:51,167 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 22:41:51,167 INFO L481 AbstractCegarLoop]: Abstraction has 1141 states and 1558 transitions. [2020-11-29 22:41:51,167 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-29 22:41:51,167 INFO L276 IsEmpty]: Start isEmpty. Operand 1141 states and 1558 transitions. [2020-11-29 22:41:51,169 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2020-11-29 22:41:51,169 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 22:41:51,169 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 22:41:51,169 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-11-29 22:41:51,170 INFO L429 AbstractCegarLoop]: === Iteration 18 === [ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr37ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-11-29 22:41:51,170 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:41:51,170 INFO L82 PathProgramCache]: Analyzing trace with hash 25170625, now seen corresponding path program 1 times [2020-11-29 22:41:51,171 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 22:41:51,171 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [430970609] [2020-11-29 22:41:51,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 22:41:51,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:41:51,373 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2020-11-29 22:41:51,373 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [430970609] [2020-11-29 22:41:51,373 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 22:41:51,373 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-29 22:41:51,374 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1550592752] [2020-11-29 22:41:51,374 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-29 22:41:51,374 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 22:41:51,374 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-29 22:41:51,374 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-29 22:41:51,374 INFO L87 Difference]: Start difference. First operand 1141 states and 1558 transitions. Second operand 5 states. [2020-11-29 22:41:51,747 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 22:41:51,747 INFO L93 Difference]: Finished difference Result 3558 states and 4844 transitions. [2020-11-29 22:41:51,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-29 22:41:51,747 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 80 [2020-11-29 22:41:51,748 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 22:41:51,767 INFO L225 Difference]: With dead ends: 3558 [2020-11-29 22:41:51,767 INFO L226 Difference]: Without dead ends: 3384 [2020-11-29 22:41:51,769 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-11-29 22:41:51,773 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3384 states. [2020-11-29 22:41:51,839 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3384 to 1141. [2020-11-29 22:41:51,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1141 states. [2020-11-29 22:41:51,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1141 states to 1141 states and 1558 transitions. [2020-11-29 22:41:51,843 INFO L78 Accepts]: Start accepts. Automaton has 1141 states and 1558 transitions. Word has length 80 [2020-11-29 22:41:51,843 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 22:41:51,843 INFO L481 AbstractCegarLoop]: Abstraction has 1141 states and 1558 transitions. [2020-11-29 22:41:51,843 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-29 22:41:51,843 INFO L276 IsEmpty]: Start isEmpty. Operand 1141 states and 1558 transitions. [2020-11-29 22:41:51,845 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2020-11-29 22:41:51,845 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 22:41:51,845 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 22:41:51,845 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-11-29 22:41:51,846 INFO L429 AbstractCegarLoop]: === Iteration 19 === [ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr37ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-11-29 22:41:51,846 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:41:51,846 INFO L82 PathProgramCache]: Analyzing trace with hash 1618881827, now seen corresponding path program 1 times [2020-11-29 22:41:51,847 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 22:41:51,847 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [536630437] [2020-11-29 22:41:51,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 22:41:51,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:41:52,002 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 81 trivial. 0 not checked. [2020-11-29 22:41:52,002 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [536630437] [2020-11-29 22:41:52,004 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 22:41:52,004 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-11-29 22:41:52,004 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [586628409] [2020-11-29 22:41:52,005 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-29 22:41:52,005 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 22:41:52,006 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-29 22:41:52,006 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-11-29 22:41:52,006 INFO L87 Difference]: Start difference. First operand 1141 states and 1558 transitions. Second operand 6 states. [2020-11-29 22:41:52,627 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 22:41:52,627 INFO L93 Difference]: Finished difference Result 4706 states and 6408 transitions. [2020-11-29 22:41:52,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-11-29 22:41:52,628 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 83 [2020-11-29 22:41:52,628 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 22:41:52,652 INFO L225 Difference]: With dead ends: 4706 [2020-11-29 22:41:52,653 INFO L226 Difference]: Without dead ends: 4539 [2020-11-29 22:41:52,654 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-11-29 22:41:52,660 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4539 states. [2020-11-29 22:41:52,731 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4539 to 1141. [2020-11-29 22:41:52,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1141 states. [2020-11-29 22:41:52,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1141 states to 1141 states and 1558 transitions. [2020-11-29 22:41:52,734 INFO L78 Accepts]: Start accepts. Automaton has 1141 states and 1558 transitions. Word has length 83 [2020-11-29 22:41:52,735 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 22:41:52,735 INFO L481 AbstractCegarLoop]: Abstraction has 1141 states and 1558 transitions. [2020-11-29 22:41:52,735 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-29 22:41:52,735 INFO L276 IsEmpty]: Start isEmpty. Operand 1141 states and 1558 transitions. [2020-11-29 22:41:52,737 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2020-11-29 22:41:52,737 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 22:41:52,737 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 22:41:52,737 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-11-29 22:41:52,738 INFO L429 AbstractCegarLoop]: === Iteration 20 === [ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr37ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-11-29 22:41:52,738 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:41:52,738 INFO L82 PathProgramCache]: Analyzing trace with hash -705708941, now seen corresponding path program 1 times [2020-11-29 22:41:52,738 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 22:41:52,739 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1863074226] [2020-11-29 22:41:52,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 22:41:52,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:41:52,894 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2020-11-29 22:41:52,894 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1863074226] [2020-11-29 22:41:52,895 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 22:41:52,895 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-11-29 22:41:52,895 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1539503547] [2020-11-29 22:41:52,895 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-29 22:41:52,895 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 22:41:52,896 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-29 22:41:52,896 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-11-29 22:41:52,896 INFO L87 Difference]: Start difference. First operand 1141 states and 1558 transitions. Second operand 6 states. [2020-11-29 22:41:53,585 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 22:41:53,585 INFO L93 Difference]: Finished difference Result 4686 states and 6381 transitions. [2020-11-29 22:41:53,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-11-29 22:41:53,586 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 83 [2020-11-29 22:41:53,586 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 22:41:53,609 INFO L225 Difference]: With dead ends: 4686 [2020-11-29 22:41:53,610 INFO L226 Difference]: Without dead ends: 4512 [2020-11-29 22:41:53,611 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-11-29 22:41:53,617 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4512 states. [2020-11-29 22:41:53,698 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4512 to 1141. [2020-11-29 22:41:53,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1141 states. [2020-11-29 22:41:53,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1141 states to 1141 states and 1558 transitions. [2020-11-29 22:41:53,701 INFO L78 Accepts]: Start accepts. Automaton has 1141 states and 1558 transitions. Word has length 83 [2020-11-29 22:41:53,701 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 22:41:53,701 INFO L481 AbstractCegarLoop]: Abstraction has 1141 states and 1558 transitions. [2020-11-29 22:41:53,702 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-29 22:41:53,702 INFO L276 IsEmpty]: Start isEmpty. Operand 1141 states and 1558 transitions. [2020-11-29 22:41:53,703 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2020-11-29 22:41:53,704 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 22:41:53,704 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 22:41:53,704 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-11-29 22:41:53,705 INFO L429 AbstractCegarLoop]: === Iteration 21 === [ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr37ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-11-29 22:41:53,705 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:41:53,705 INFO L82 PathProgramCache]: Analyzing trace with hash -1508814206, now seen corresponding path program 1 times [2020-11-29 22:41:53,705 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 22:41:53,706 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1857829226] [2020-11-29 22:41:53,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 22:41:53,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:41:53,819 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 50 proven. 3 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2020-11-29 22:41:53,819 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1857829226] [2020-11-29 22:41:53,820 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [475688771] [2020-11-29 22:41:53,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c0077ff5-6e92-4814-882f-4264ce07dc83/bin/uautomizer/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-29 22:41:53,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:41:53,888 INFO L263 TraceCheckSpWp]: Trace formula consists of 191 conjuncts, 8 conjunts are in the unsatisfiable core [2020-11-29 22:41:53,891 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 22:41:53,952 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 49 proven. 3 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2020-11-29 22:41:53,954 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-29 22:41:53,954 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2020-11-29 22:41:53,955 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1890138103] [2020-11-29 22:41:53,955 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-11-29 22:41:53,955 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 22:41:53,956 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-11-29 22:41:53,956 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2020-11-29 22:41:53,956 INFO L87 Difference]: Start difference. First operand 1141 states and 1558 transitions. Second operand 8 states. [2020-11-29 22:41:54,374 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 22:41:54,375 INFO L93 Difference]: Finished difference Result 3168 states and 4362 transitions. [2020-11-29 22:41:54,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-29 22:41:54,375 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 83 [2020-11-29 22:41:54,376 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 22:41:54,386 INFO L225 Difference]: With dead ends: 3168 [2020-11-29 22:41:54,386 INFO L226 Difference]: Without dead ends: 2018 [2020-11-29 22:41:54,388 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 81 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=55, Unknown=0, NotChecked=0, Total=90 [2020-11-29 22:41:54,390 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2018 states. [2020-11-29 22:41:54,466 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2018 to 1911. [2020-11-29 22:41:54,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1911 states. [2020-11-29 22:41:54,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1911 states to 1911 states and 2607 transitions. [2020-11-29 22:41:54,471 INFO L78 Accepts]: Start accepts. Automaton has 1911 states and 2607 transitions. Word has length 83 [2020-11-29 22:41:54,471 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 22:41:54,471 INFO L481 AbstractCegarLoop]: Abstraction has 1911 states and 2607 transitions. [2020-11-29 22:41:54,471 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-11-29 22:41:54,471 INFO L276 IsEmpty]: Start isEmpty. Operand 1911 states and 2607 transitions. [2020-11-29 22:41:54,473 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2020-11-29 22:41:54,473 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 22:41:54,474 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 22:41:54,688 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-29 22:41:54,688 INFO L429 AbstractCegarLoop]: === Iteration 22 === [ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr37ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-11-29 22:41:54,689 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:41:54,689 INFO L82 PathProgramCache]: Analyzing trace with hash 1670983295, now seen corresponding path program 1 times [2020-11-29 22:41:54,689 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 22:41:54,689 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [505208821] [2020-11-29 22:41:54,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 22:41:54,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:41:54,827 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 81 trivial. 0 not checked. [2020-11-29 22:41:54,828 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [505208821] [2020-11-29 22:41:54,828 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 22:41:54,828 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-11-29 22:41:54,828 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [138886383] [2020-11-29 22:41:54,830 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-29 22:41:54,830 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 22:41:54,830 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-29 22:41:54,830 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-11-29 22:41:54,831 INFO L87 Difference]: Start difference. First operand 1911 states and 2607 transitions. Second operand 7 states. [2020-11-29 22:41:55,728 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 22:41:55,728 INFO L93 Difference]: Finished difference Result 4413 states and 5986 transitions. [2020-11-29 22:41:55,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-11-29 22:41:55,732 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 85 [2020-11-29 22:41:55,733 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 22:41:55,760 INFO L225 Difference]: With dead ends: 4413 [2020-11-29 22:41:55,761 INFO L226 Difference]: Without dead ends: 4246 [2020-11-29 22:41:55,762 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2020-11-29 22:41:55,767 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4246 states. [2020-11-29 22:41:55,840 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4246 to 1893. [2020-11-29 22:41:55,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1893 states. [2020-11-29 22:41:55,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1893 states to 1893 states and 2584 transitions. [2020-11-29 22:41:55,845 INFO L78 Accepts]: Start accepts. Automaton has 1893 states and 2584 transitions. Word has length 85 [2020-11-29 22:41:55,845 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 22:41:55,845 INFO L481 AbstractCegarLoop]: Abstraction has 1893 states and 2584 transitions. [2020-11-29 22:41:55,845 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-11-29 22:41:55,845 INFO L276 IsEmpty]: Start isEmpty. Operand 1893 states and 2584 transitions. [2020-11-29 22:41:55,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2020-11-29 22:41:55,847 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 22:41:55,848 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 22:41:55,848 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2020-11-29 22:41:55,848 INFO L429 AbstractCegarLoop]: === Iteration 23 === [ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr37ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-11-29 22:41:55,849 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:41:55,849 INFO L82 PathProgramCache]: Analyzing trace with hash -1447135889, now seen corresponding path program 1 times [2020-11-29 22:41:55,849 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 22:41:55,849 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1787866821] [2020-11-29 22:41:55,849 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 22:41:55,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:41:56,034 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2020-11-29 22:41:56,035 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1787866821] [2020-11-29 22:41:56,035 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 22:41:56,035 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-11-29 22:41:56,035 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2056302932] [2020-11-29 22:41:56,035 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-29 22:41:56,036 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 22:41:56,036 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-29 22:41:56,036 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-11-29 22:41:56,036 INFO L87 Difference]: Start difference. First operand 1893 states and 2584 transitions. Second operand 7 states. [2020-11-29 22:41:56,956 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 22:41:56,956 INFO L93 Difference]: Finished difference Result 6724 states and 9154 transitions. [2020-11-29 22:41:56,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-11-29 22:41:56,957 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 85 [2020-11-29 22:41:56,958 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 22:41:56,977 INFO L225 Difference]: With dead ends: 6724 [2020-11-29 22:41:56,977 INFO L226 Difference]: Without dead ends: 6400 [2020-11-29 22:41:56,979 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2020-11-29 22:41:56,986 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6400 states. [2020-11-29 22:41:57,076 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6400 to 1885. [2020-11-29 22:41:57,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1885 states. [2020-11-29 22:41:57,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1885 states to 1885 states and 2576 transitions. [2020-11-29 22:41:57,081 INFO L78 Accepts]: Start accepts. Automaton has 1885 states and 2576 transitions. Word has length 85 [2020-11-29 22:41:57,081 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 22:41:57,081 INFO L481 AbstractCegarLoop]: Abstraction has 1885 states and 2576 transitions. [2020-11-29 22:41:57,081 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-11-29 22:41:57,081 INFO L276 IsEmpty]: Start isEmpty. Operand 1885 states and 2576 transitions. [2020-11-29 22:41:57,083 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2020-11-29 22:41:57,083 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 22:41:57,084 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 22:41:57,084 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2020-11-29 22:41:57,084 INFO L429 AbstractCegarLoop]: === Iteration 24 === [ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr37ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-11-29 22:41:57,085 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:41:57,085 INFO L82 PathProgramCache]: Analyzing trace with hash -566259362, now seen corresponding path program 1 times [2020-11-29 22:41:57,085 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 22:41:57,085 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [775642972] [2020-11-29 22:41:57,085 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 22:41:57,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:41:57,224 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 49 proven. 5 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2020-11-29 22:41:57,225 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [775642972] [2020-11-29 22:41:57,225 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [898111039] [2020-11-29 22:41:57,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c0077ff5-6e92-4814-882f-4264ce07dc83/bin/uautomizer/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-29 22:41:57,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:41:57,292 INFO L263 TraceCheckSpWp]: Trace formula consists of 196 conjuncts, 11 conjunts are in the unsatisfiable core [2020-11-29 22:41:57,301 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 22:41:57,720 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 49 proven. 3 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2020-11-29 22:41:57,721 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-29 22:41:57,721 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6] total 10 [2020-11-29 22:41:57,721 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1984079626] [2020-11-29 22:41:57,722 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-11-29 22:41:57,722 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 22:41:57,722 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-11-29 22:41:57,723 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2020-11-29 22:41:57,723 INFO L87 Difference]: Start difference. First operand 1885 states and 2576 transitions. Second operand 10 states. [2020-11-29 22:41:59,358 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 22:41:59,359 INFO L93 Difference]: Finished difference Result 5246 states and 7382 transitions. [2020-11-29 22:41:59,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-11-29 22:41:59,360 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 86 [2020-11-29 22:41:59,360 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 22:41:59,367 INFO L225 Difference]: With dead ends: 5246 [2020-11-29 22:41:59,368 INFO L226 Difference]: Without dead ends: 3390 [2020-11-29 22:41:59,371 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 82 SyntacticMatches, 3 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=65, Invalid=175, Unknown=0, NotChecked=0, Total=240 [2020-11-29 22:41:59,375 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3390 states. [2020-11-29 22:41:59,478 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3390 to 2569. [2020-11-29 22:41:59,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2569 states. [2020-11-29 22:41:59,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2569 states to 2569 states and 3488 transitions. [2020-11-29 22:41:59,484 INFO L78 Accepts]: Start accepts. Automaton has 2569 states and 3488 transitions. Word has length 86 [2020-11-29 22:41:59,484 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 22:41:59,484 INFO L481 AbstractCegarLoop]: Abstraction has 2569 states and 3488 transitions. [2020-11-29 22:41:59,485 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-11-29 22:41:59,485 INFO L276 IsEmpty]: Start isEmpty. Operand 2569 states and 3488 transitions. [2020-11-29 22:41:59,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2020-11-29 22:41:59,488 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 22:41:59,488 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 22:41:59,704 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,8 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-29 22:41:59,704 INFO L429 AbstractCegarLoop]: === Iteration 25 === [ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr37ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-11-29 22:41:59,705 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:41:59,705 INFO L82 PathProgramCache]: Analyzing trace with hash 1279960591, now seen corresponding path program 1 times [2020-11-29 22:41:59,705 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 22:41:59,705 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [231816068] [2020-11-29 22:41:59,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 22:41:59,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:41:59,852 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 51 proven. 7 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2020-11-29 22:41:59,853 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [231816068] [2020-11-29 22:41:59,853 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1004544641] [2020-11-29 22:41:59,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c0077ff5-6e92-4814-882f-4264ce07dc83/bin/uautomizer/z3 Starting monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-29 22:41:59,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:41:59,920 INFO L263 TraceCheckSpWp]: Trace formula consists of 196 conjuncts, 11 conjunts are in the unsatisfiable core [2020-11-29 22:41:59,922 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 22:42:00,025 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 54 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2020-11-29 22:42:00,025 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-11-29 22:42:00,025 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [7] total 11 [2020-11-29 22:42:00,025 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [872115850] [2020-11-29 22:42:00,026 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-29 22:42:00,026 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 22:42:00,026 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-29 22:42:00,027 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2020-11-29 22:42:00,027 INFO L87 Difference]: Start difference. First operand 2569 states and 3488 transitions. Second operand 6 states. [2020-11-29 22:42:00,311 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 22:42:00,311 INFO L93 Difference]: Finished difference Result 3367 states and 4548 transitions. [2020-11-29 22:42:00,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-29 22:42:00,312 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 86 [2020-11-29 22:42:00,312 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 22:42:00,318 INFO L225 Difference]: With dead ends: 3367 [2020-11-29 22:42:00,318 INFO L226 Difference]: Without dead ends: 3167 [2020-11-29 22:42:00,319 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 82 SyntacticMatches, 2 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2020-11-29 22:42:00,322 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3167 states. [2020-11-29 22:42:00,410 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3167 to 3140. [2020-11-29 22:42:00,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3140 states. [2020-11-29 22:42:00,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3140 states to 3140 states and 4241 transitions. [2020-11-29 22:42:00,417 INFO L78 Accepts]: Start accepts. Automaton has 3140 states and 4241 transitions. Word has length 86 [2020-11-29 22:42:00,417 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 22:42:00,417 INFO L481 AbstractCegarLoop]: Abstraction has 3140 states and 4241 transitions. [2020-11-29 22:42:00,417 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-29 22:42:00,417 INFO L276 IsEmpty]: Start isEmpty. Operand 3140 states and 4241 transitions. [2020-11-29 22:42:00,420 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2020-11-29 22:42:00,420 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 22:42:00,420 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 22:42:00,636 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2020-11-29 22:42:00,636 INFO L429 AbstractCegarLoop]: === Iteration 26 === [ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr37ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-11-29 22:42:00,637 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:42:00,637 INFO L82 PathProgramCache]: Analyzing trace with hash -1246814763, now seen corresponding path program 1 times [2020-11-29 22:42:00,637 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 22:42:00,637 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1618851950] [2020-11-29 22:42:00,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 22:42:00,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:42:00,810 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 49 proven. 5 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2020-11-29 22:42:00,810 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1618851950] [2020-11-29 22:42:00,810 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [135170468] [2020-11-29 22:42:00,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c0077ff5-6e92-4814-882f-4264ce07dc83/bin/uautomizer/z3 Starting monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-29 22:42:00,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:42:00,878 INFO L263 TraceCheckSpWp]: Trace formula consists of 201 conjuncts, 13 conjunts are in the unsatisfiable core [2020-11-29 22:42:00,885 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 22:42:00,972 INFO L721 QuantifierPusher]: Run 10 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2020-11-29 22:42:01,144 INFO L721 QuantifierPusher]: Run 20 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2020-11-29 22:42:19,723 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 49 proven. 3 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2020-11-29 22:42:19,724 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-29 22:42:19,724 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7] total 12 [2020-11-29 22:42:19,724 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1617519319] [2020-11-29 22:42:19,725 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-11-29 22:42:19,725 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 22:42:19,725 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-11-29 22:42:19,726 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2020-11-29 22:42:19,726 INFO L87 Difference]: Start difference. First operand 3140 states and 4241 transitions. Second operand 12 states. [2020-11-29 22:42:20,863 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 165 [2020-11-29 22:42:22,952 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 22:42:22,952 INFO L93 Difference]: Finished difference Result 6038 states and 8105 transitions. [2020-11-29 22:42:22,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-11-29 22:42:22,954 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 89 [2020-11-29 22:42:22,954 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 22:42:22,963 INFO L225 Difference]: With dead ends: 6038 [2020-11-29 22:42:22,963 INFO L226 Difference]: Without dead ends: 5497 [2020-11-29 22:42:22,965 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 84 SyntacticMatches, 3 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=84, Invalid=296, Unknown=0, NotChecked=0, Total=380 [2020-11-29 22:42:22,970 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5497 states. [2020-11-29 22:42:23,115 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5497 to 4100. [2020-11-29 22:42:23,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4100 states. [2020-11-29 22:42:23,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4100 states to 4100 states and 5518 transitions. [2020-11-29 22:42:23,123 INFO L78 Accepts]: Start accepts. Automaton has 4100 states and 5518 transitions. Word has length 89 [2020-11-29 22:42:23,123 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 22:42:23,123 INFO L481 AbstractCegarLoop]: Abstraction has 4100 states and 5518 transitions. [2020-11-29 22:42:23,123 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-11-29 22:42:23,123 INFO L276 IsEmpty]: Start isEmpty. Operand 4100 states and 5518 transitions. [2020-11-29 22:42:23,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2020-11-29 22:42:23,127 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 22:42:23,127 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 22:42:23,340 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2020-11-29 22:42:23,340 INFO L429 AbstractCegarLoop]: === Iteration 27 === [ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr37ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-11-29 22:42:23,341 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:42:23,341 INFO L82 PathProgramCache]: Analyzing trace with hash 435136947, now seen corresponding path program 1 times [2020-11-29 22:42:23,341 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 22:42:23,341 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2057286755] [2020-11-29 22:42:23,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 22:42:23,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:42:23,463 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 51 proven. 7 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2020-11-29 22:42:23,463 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2057286755] [2020-11-29 22:42:23,464 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1067236060] [2020-11-29 22:42:23,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c0077ff5-6e92-4814-882f-4264ce07dc83/bin/uautomizer/z3 Starting monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-29 22:42:23,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:42:23,529 INFO L263 TraceCheckSpWp]: Trace formula consists of 201 conjuncts, 10 conjunts are in the unsatisfiable core [2020-11-29 22:42:23,530 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 22:42:23,669 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 30 proven. 28 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2020-11-29 22:42:23,669 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-29 22:42:23,669 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6] total 12 [2020-11-29 22:42:23,670 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1198163692] [2020-11-29 22:42:23,670 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-11-29 22:42:23,670 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 22:42:23,671 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-11-29 22:42:23,671 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2020-11-29 22:42:23,671 INFO L87 Difference]: Start difference. First operand 4100 states and 5518 transitions. Second operand 12 states. [2020-11-29 22:42:27,633 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 22:42:27,633 INFO L93 Difference]: Finished difference Result 17412 states and 21999 transitions. [2020-11-29 22:42:27,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2020-11-29 22:42:27,634 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 89 [2020-11-29 22:42:27,634 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 22:42:27,664 INFO L225 Difference]: With dead ends: 17412 [2020-11-29 22:42:27,664 INFO L226 Difference]: Without dead ends: 14178 [2020-11-29 22:42:27,672 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 131 GetRequests, 85 SyntacticMatches, 1 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 546 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=387, Invalid=1775, Unknown=0, NotChecked=0, Total=2162 [2020-11-29 22:42:27,686 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14178 states. [2020-11-29 22:42:27,947 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14178 to 5702. [2020-11-29 22:42:27,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5702 states. [2020-11-29 22:42:27,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5702 states to 5702 states and 7690 transitions. [2020-11-29 22:42:27,956 INFO L78 Accepts]: Start accepts. Automaton has 5702 states and 7690 transitions. Word has length 89 [2020-11-29 22:42:27,957 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 22:42:27,957 INFO L481 AbstractCegarLoop]: Abstraction has 5702 states and 7690 transitions. [2020-11-29 22:42:27,957 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-11-29 22:42:27,957 INFO L276 IsEmpty]: Start isEmpty. Operand 5702 states and 7690 transitions. [2020-11-29 22:42:27,961 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2020-11-29 22:42:27,961 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 22:42:27,961 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 22:42:28,171 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2020-11-29 22:42:28,171 INFO L429 AbstractCegarLoop]: === Iteration 28 === [ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr37ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-11-29 22:42:28,172 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:42:28,172 INFO L82 PathProgramCache]: Analyzing trace with hash -1767062975, now seen corresponding path program 1 times [2020-11-29 22:42:28,172 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 22:42:28,172 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [721802900] [2020-11-29 22:42:28,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 22:42:28,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:42:28,362 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 51 proven. 7 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2020-11-29 22:42:28,362 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [721802900] [2020-11-29 22:42:28,362 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1100313649] [2020-11-29 22:42:28,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c0077ff5-6e92-4814-882f-4264ce07dc83/bin/uautomizer/z3 Starting monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-29 22:42:28,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:42:28,438 INFO L263 TraceCheckSpWp]: Trace formula consists of 201 conjuncts, 13 conjunts are in the unsatisfiable core [2020-11-29 22:42:28,441 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 22:42:28,641 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 54 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2020-11-29 22:42:28,641 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-11-29 22:42:28,641 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [8] total 13 [2020-11-29 22:42:28,642 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1600286909] [2020-11-29 22:42:28,643 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-29 22:42:28,643 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 22:42:28,644 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-29 22:42:28,644 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=114, Unknown=0, NotChecked=0, Total=156 [2020-11-29 22:42:28,644 INFO L87 Difference]: Start difference. First operand 5702 states and 7690 transitions. Second operand 7 states. [2020-11-29 22:42:29,096 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 22:42:29,096 INFO L93 Difference]: Finished difference Result 6725 states and 9036 transitions. [2020-11-29 22:42:29,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-29 22:42:29,097 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 89 [2020-11-29 22:42:29,097 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 22:42:29,106 INFO L225 Difference]: With dead ends: 6725 [2020-11-29 22:42:29,107 INFO L226 Difference]: Without dead ends: 6089 [2020-11-29 22:42:29,109 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 84 SyntacticMatches, 2 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=42, Invalid=114, Unknown=0, NotChecked=0, Total=156 [2020-11-29 22:42:29,114 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6089 states. [2020-11-29 22:42:29,330 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6089 to 5706. [2020-11-29 22:42:29,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5706 states. [2020-11-29 22:42:29,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5706 states to 5706 states and 7694 transitions. [2020-11-29 22:42:29,341 INFO L78 Accepts]: Start accepts. Automaton has 5706 states and 7694 transitions. Word has length 89 [2020-11-29 22:42:29,341 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 22:42:29,341 INFO L481 AbstractCegarLoop]: Abstraction has 5706 states and 7694 transitions. [2020-11-29 22:42:29,341 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-11-29 22:42:29,341 INFO L276 IsEmpty]: Start isEmpty. Operand 5706 states and 7694 transitions. [2020-11-29 22:42:29,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2020-11-29 22:42:29,354 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 22:42:29,354 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 22:42:29,580 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2020-11-29 22:42:29,580 INFO L429 AbstractCegarLoop]: === Iteration 29 === [ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr37ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-11-29 22:42:29,581 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:42:29,581 INFO L82 PathProgramCache]: Analyzing trace with hash -1585272271, now seen corresponding path program 1 times [2020-11-29 22:42:29,581 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 22:42:29,581 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [459573227] [2020-11-29 22:42:29,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 22:42:29,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 22:42:29,618 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 22:42:29,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 22:42:29,665 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 22:42:29,702 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 22:42:29,703 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-29 22:42:29,703 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2020-11-29 22:42:29,812 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.11 10:42:29 BoogieIcfgContainer [2020-11-29 22:42:29,813 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-29 22:42:29,813 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-29 22:42:29,813 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-29 22:42:29,814 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-29 22:42:29,814 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 10:41:40" (3/4) ... [2020-11-29 22:42:29,817 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-11-29 22:42:29,818 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-29 22:42:29,819 INFO L168 Benchmark]: Toolchain (without parser) took 50298.33 ms. Allocated memory was 79.7 MB in the beginning and 849.3 MB in the end (delta: 769.7 MB). Free memory was 46.1 MB in the beginning and 591.1 MB in the end (delta: -544.9 MB). Peak memory consumption was 224.0 MB. Max. memory is 16.1 GB. [2020-11-29 22:42:29,819 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 79.7 MB. Free memory was 52.9 MB in the beginning and 52.9 MB in the end (delta: 25.3 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 22:42:29,820 INFO L168 Benchmark]: CACSL2BoogieTranslator took 363.15 ms. Allocated memory was 79.7 MB in the beginning and 100.7 MB in the end (delta: 21.0 MB). Free memory was 45.8 MB in the beginning and 76.0 MB in the end (delta: -30.2 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-29 22:42:29,820 INFO L168 Benchmark]: Boogie Procedure Inliner took 44.15 ms. Allocated memory is still 100.7 MB. Free memory was 76.0 MB in the beginning and 73.9 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 22:42:29,821 INFO L168 Benchmark]: Boogie Preprocessor took 58.39 ms. Allocated memory is still 100.7 MB. Free memory was 73.9 MB in the beginning and 72.7 MB in the end (delta: 1.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 22:42:29,821 INFO L168 Benchmark]: RCFGBuilder took 673.00 ms. Allocated memory is still 100.7 MB. Free memory was 72.7 MB in the beginning and 46.2 MB in the end (delta: 26.5 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.1 GB. [2020-11-29 22:42:29,821 INFO L168 Benchmark]: TraceAbstraction took 49148.71 ms. Allocated memory was 100.7 MB in the beginning and 849.3 MB in the end (delta: 748.7 MB). Free memory was 45.8 MB in the beginning and 591.1 MB in the end (delta: -545.2 MB). Peak memory consumption was 205.5 MB. Max. memory is 16.1 GB. [2020-11-29 22:42:29,822 INFO L168 Benchmark]: Witness Printer took 4.45 ms. Allocated memory is still 849.3 MB. Free memory is still 591.1 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 22:42:29,824 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 79.7 MB. Free memory was 52.9 MB in the beginning and 52.9 MB in the end (delta: 25.3 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 363.15 ms. Allocated memory was 79.7 MB in the beginning and 100.7 MB in the end (delta: 21.0 MB). Free memory was 45.8 MB in the beginning and 76.0 MB in the end (delta: -30.2 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 44.15 ms. Allocated memory is still 100.7 MB. Free memory was 76.0 MB in the beginning and 73.9 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 58.39 ms. Allocated memory is still 100.7 MB. Free memory was 73.9 MB in the beginning and 72.7 MB in the end (delta: 1.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 673.00 ms. Allocated memory is still 100.7 MB. Free memory was 72.7 MB in the beginning and 46.2 MB in the end (delta: 26.5 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.1 GB. * TraceAbstraction took 49148.71 ms. Allocated memory was 100.7 MB in the beginning and 849.3 MB in the end (delta: 748.7 MB). Free memory was 45.8 MB in the beginning and 591.1 MB in the end (delta: -545.2 MB). Peak memory consumption was 205.5 MB. Max. memory is 16.1 GB. * Witness Printer took 4.45 ms. Allocated memory is still 849.3 MB. Free memory is still 591.1 MB. There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 108]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of bitwiseAnd at line 88. Possible FailurePath: [L116] unsigned int a, b, r; [L118] a = __VERIFIER_nondet_uint() [L119] b = __VERIFIER_nondet_uint() [L34] unsigned char a0, a1, a2, a3; [L35] unsigned char b0, b1, b2, b3; [L36] unsigned char r0, r1, r2, r3; [L37] unsigned short carry; [L38] unsigned short partial_sum; [L39] unsigned int r; [L40] unsigned char i; [L41] unsigned char na, nb; [L42] a0 = a [L43] a1 = a >> 8 [L44] a2 = a >> 16U [L45] a3 = a >> 24U [L46] b0 = b [L47] b1 = b >> 8U [L48] b2 = b >> 16U [L49] b3 = b >> 24U [L50] na = (unsigned char)4 [L51] COND TRUE a3 == (unsigned char)0 [L52] EXPR na - 1 [L52] na = na - 1 [L53] COND TRUE a2 == (unsigned char)0 [L54] EXPR na - 1 [L54] na = na - 1 [L55] COND TRUE a1 == (unsigned char)0 [L56] EXPR na - 1 [L56] na = na - 1 [L60] nb = (unsigned char)4 [L61] COND FALSE !(b3 == (unsigned char)0) [L70] carry = (unsigned short)0 [L71] i = (unsigned char)0 [L72] COND TRUE (i < na) || (i < nb) || (carry != (unsigned short)0) [L73] partial_sum = carry [L74] carry = (unsigned short)0 [L75] COND TRUE i < na [L76] COND TRUE i == (unsigned char)0 [L76] EXPR partial_sum + a0 [L76] partial_sum = partial_sum + a0 [L77] COND FALSE !(i == (unsigned char)1) [L78] COND FALSE !(i == (unsigned char)2) [L79] COND FALSE !(i == (unsigned char)3) [L81] COND TRUE i < nb [L82] COND TRUE i == (unsigned char)0 [L82] EXPR partial_sum + b0 [L82] partial_sum = partial_sum + b0 [L83] COND FALSE !(i == (unsigned char)1) [L84] COND FALSE !(i == (unsigned char)2) [L85] COND FALSE !(i == (unsigned char)3) [L87] COND TRUE partial_sum > ((unsigned char)254) [L88] partial_sum = partial_sum & ((unsigned char)255) [L89] carry = (unsigned short)1 [L91] COND TRUE i == (unsigned char)0 [L91] r0 = (unsigned char)partial_sum [L92] COND FALSE !(i == (unsigned char)1) [L93] COND FALSE !(i == (unsigned char)2) [L94] COND FALSE !(i == (unsigned char)3) [L96] EXPR i + (unsigned char)1 [L96] i = i + (unsigned char)1 [L72] COND TRUE (i < na) || (i < nb) || (carry != (unsigned short)0) [L73] partial_sum = carry [L74] carry = (unsigned short)0 [L75] COND FALSE !(i < na) [L81] COND TRUE i < nb [L82] COND FALSE !(i == (unsigned char)0) [L83] COND TRUE i == (unsigned char)1 [L83] EXPR partial_sum + b1 [L83] partial_sum = partial_sum + b1 [L84] COND FALSE !(i == (unsigned char)2) [L85] COND FALSE !(i == (unsigned char)3) [L87] COND TRUE partial_sum > ((unsigned char)254) [L88] partial_sum = partial_sum & ((unsigned char)255) [L89] carry = (unsigned short)1 [L91] COND FALSE !(i == (unsigned char)0) [L92] COND TRUE i == (unsigned char)1 [L92] r1 = (unsigned char)partial_sum [L93] COND FALSE !(i == (unsigned char)2) [L94] COND FALSE !(i == (unsigned char)3) [L96] EXPR i + (unsigned char)1 [L96] i = i + (unsigned char)1 [L72] COND TRUE (i < na) || (i < nb) || (carry != (unsigned short)0) [L73] partial_sum = carry [L74] carry = (unsigned short)0 [L75] COND FALSE !(i < na) [L81] COND TRUE i < nb [L82] COND FALSE !(i == (unsigned char)0) [L83] COND FALSE !(i == (unsigned char)1) [L84] COND TRUE i == (unsigned char)2 [L84] EXPR partial_sum + b2 [L84] partial_sum = partial_sum + b2 [L85] COND FALSE !(i == (unsigned char)3) [L87] COND TRUE partial_sum > ((unsigned char)254) [L88] partial_sum = partial_sum & ((unsigned char)255) [L89] carry = (unsigned short)1 [L91] COND FALSE !(i == (unsigned char)0) [L92] COND FALSE !(i == (unsigned char)1) [L93] COND TRUE i == (unsigned char)2 [L93] r2 = (unsigned char)partial_sum [L94] COND FALSE !(i == (unsigned char)3) [L96] EXPR i + (unsigned char)1 [L96] i = i + (unsigned char)1 [L72] COND TRUE (i < na) || (i < nb) || (carry != (unsigned short)0) [L73] partial_sum = carry [L74] carry = (unsigned short)0 [L75] COND FALSE !(i < na) [L81] COND TRUE i < nb [L82] COND FALSE !(i == (unsigned char)0) [L83] COND FALSE !(i == (unsigned char)1) [L84] COND FALSE !(i == (unsigned char)2) [L85] COND TRUE i == (unsigned char)3 [L85] EXPR partial_sum + b3 [L85] partial_sum = partial_sum + b3 [L87] COND FALSE !(partial_sum > ((unsigned char)254)) [L91] COND FALSE !(i == (unsigned char)0) [L92] COND FALSE !(i == (unsigned char)1) [L93] COND FALSE !(i == (unsigned char)2) [L94] COND TRUE i == (unsigned char)3 [L94] r3 = (unsigned char)partial_sum [L96] EXPR i + (unsigned char)1 [L96] i = i + (unsigned char)1 [L72] COND FALSE !((i < na) || (i < nb) || (carry != (unsigned short)0)) [L99] COND FALSE !(i < (unsigned char)4) [L108] r1 << 8U [L108] r2 << 16U [L108] r3 << 24U - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 116 locations, 38 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 48.9s, OverallIterations: 29, TraceHistogramMax: 4, AutomataDifference: 19.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 3833 SDtfs, 6706 SDslu, 10501 SDs, 0 SdLazy, 8612 SolverSat, 497 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 11.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1033 GetRequests, 784 SyntacticMatches, 33 SemanticMatches, 216 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 757 ImplicationChecksByTransitivity, 5.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=5706occurred in iteration=28, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.8s AutomataMinimizationTime, 28 MinimizatonAttempts, 31331 StatesRemovedByMinimization, 26 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 1.1s SatisfiabilityAnalysisTime, 23.1s InterpolantComputationTime, 2625 NumberOfCodeBlocks, 2625 NumberOfCodeBlocksAsserted, 40 NumberOfCheckSat, 2495 ConstructedInterpolants, 36 QuantifiedInterpolants, 1769943 SizeOfPredicates, 22 NumberOfNonLiveVariables, 1851 ConjunctsInSsa, 91 ConjunctsInUnsatCore, 39 InterpolantComputations, 23 PerfectInterpolantSequences, 2276/2396 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...