./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted/MutualRecursion_1b.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 69874e26 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_832b09fb-6a1b-456b-8c8f-c83485477e84/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_832b09fb-6a1b-456b-8c8f-c83485477e84/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_832b09fb-6a1b-456b-8c8f-c83485477e84/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_832b09fb-6a1b-456b-8c8f-c83485477e84/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/termination-crafted/MutualRecursion_1b.c -s /tmp/vcloud-vcloud-master/worker/run_dir_832b09fb-6a1b-456b-8c8f-c83485477e84/bin/uautomizer/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_832b09fb-6a1b-456b-8c8f-c83485477e84/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 64bit --witnessprinter.graph.data.programhash 9072a9376e1e28de1ef4dc11b7134f6f175023b7 .............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-69874e2 [2020-12-01 15:08:29,489 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-01 15:08:29,492 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-01 15:08:29,557 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-01 15:08:29,558 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-01 15:08:29,559 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-01 15:08:29,561 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-01 15:08:29,564 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-01 15:08:29,589 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-01 15:08:29,591 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-01 15:08:29,592 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-01 15:08:29,593 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-01 15:08:29,594 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-01 15:08:29,595 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-01 15:08:29,597 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-01 15:08:29,598 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-01 15:08:29,600 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-01 15:08:29,607 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-01 15:08:29,614 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-01 15:08:29,622 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-01 15:08:29,625 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-01 15:08:29,627 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-01 15:08:29,630 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-01 15:08:29,631 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-01 15:08:29,641 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-01 15:08:29,641 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-01 15:08:29,642 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-01 15:08:29,644 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-01 15:08:29,645 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-01 15:08:29,646 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-01 15:08:29,647 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-01 15:08:29,648 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-01 15:08:29,651 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-01 15:08:29,652 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-01 15:08:29,653 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-01 15:08:29,653 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-01 15:08:29,654 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-01 15:08:29,655 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-01 15:08:29,655 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-01 15:08:29,656 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-01 15:08:29,657 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-01 15:08:29,660 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_832b09fb-6a1b-456b-8c8f-c83485477e84/bin/uautomizer/config/svcomp-Overflow-64bit-Automizer_Default.epf [2020-12-01 15:08:29,689 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-01 15:08:29,689 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-01 15:08:29,691 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-01 15:08:29,691 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-01 15:08:29,691 INFO L138 SettingsManager]: * Use SBE=true [2020-12-01 15:08:29,691 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-01 15:08:29,692 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-12-01 15:08:29,692 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-01 15:08:29,692 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-01 15:08:29,692 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-01 15:08:29,692 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-01 15:08:29,692 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-01 15:08:29,693 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2020-12-01 15:08:29,693 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-01 15:08:29,693 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-01 15:08:29,693 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-01 15:08:29,694 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-01 15:08:29,694 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-01 15:08:29,694 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-12-01 15:08:29,694 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-01 15:08:29,694 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-01 15:08:29,695 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-01 15:08:29,695 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-01 15:08:29,695 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-01 15:08:29,695 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-01 15:08:29,695 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-01 15:08:29,696 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-01 15:08:29,696 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-01 15:08:29,696 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_832b09fb-6a1b-456b-8c8f-c83485477e84/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_832b09fb-6a1b-456b-8c8f-c83485477e84/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9072a9376e1e28de1ef4dc11b7134f6f175023b7 [2020-12-01 15:08:30,016 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-01 15:08:30,048 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-01 15:08:30,053 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-01 15:08:30,055 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-01 15:08:30,056 INFO L275 PluginConnector]: CDTParser initialized [2020-12-01 15:08:30,059 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_832b09fb-6a1b-456b-8c8f-c83485477e84/bin/uautomizer/../../sv-benchmarks/c/termination-crafted/MutualRecursion_1b.c [2020-12-01 15:08:30,123 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_832b09fb-6a1b-456b-8c8f-c83485477e84/bin/uautomizer/data/cf6e65459/a88144137c964bb7a26c544ec1707394/FLAGc4f381477 [2020-12-01 15:08:30,574 INFO L306 CDTParser]: Found 1 translation units. [2020-12-01 15:08:30,574 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_832b09fb-6a1b-456b-8c8f-c83485477e84/sv-benchmarks/c/termination-crafted/MutualRecursion_1b.c [2020-12-01 15:08:30,583 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_832b09fb-6a1b-456b-8c8f-c83485477e84/bin/uautomizer/data/cf6e65459/a88144137c964bb7a26c544ec1707394/FLAGc4f381477 [2020-12-01 15:08:30,950 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_832b09fb-6a1b-456b-8c8f-c83485477e84/bin/uautomizer/data/cf6e65459/a88144137c964bb7a26c544ec1707394 [2020-12-01 15:08:30,952 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-01 15:08:30,954 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-01 15:08:30,969 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-01 15:08:30,970 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-01 15:08:30,973 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-01 15:08:30,973 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 03:08:30" (1/1) ... [2020-12-01 15:08:30,975 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1286aecb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:08:30, skipping insertion in model container [2020-12-01 15:08:30,976 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 03:08:30" (1/1) ... [2020-12-01 15:08:30,983 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-01 15:08:30,996 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-01 15:08:31,161 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 15:08:31,166 INFO L203 MainTranslator]: Completed pre-run [2020-12-01 15:08:31,189 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 15:08:31,203 INFO L208 MainTranslator]: Completed translation [2020-12-01 15:08:31,203 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:08:31 WrapperNode [2020-12-01 15:08:31,204 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-01 15:08:31,205 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-01 15:08:31,209 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-01 15:08:31,209 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-01 15:08:31,219 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:08:31" (1/1) ... [2020-12-01 15:08:31,222 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:08:31" (1/1) ... [2020-12-01 15:08:31,239 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-01 15:08:31,243 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-01 15:08:31,243 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-01 15:08:31,244 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-01 15:08:31,253 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:08:31" (1/1) ... [2020-12-01 15:08:31,253 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:08:31" (1/1) ... [2020-12-01 15:08:31,254 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:08:31" (1/1) ... [2020-12-01 15:08:31,254 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:08:31" (1/1) ... [2020-12-01 15:08:31,257 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:08:31" (1/1) ... [2020-12-01 15:08:31,258 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:08:31" (1/1) ... [2020-12-01 15:08:31,259 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:08:31" (1/1) ... [2020-12-01 15:08:31,271 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-01 15:08:31,272 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-01 15:08:31,273 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-01 15:08:31,273 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-01 15:08:31,277 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:08:31" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_832b09fb-6a1b-456b-8c8f-c83485477e84/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 [2020-12-01 15:08:31,359 INFO L130 BoogieDeclarations]: Found specification of procedure f [2020-12-01 15:08:31,359 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2020-12-01 15:08:31,359 INFO L130 BoogieDeclarations]: Found specification of procedure g [2020-12-01 15:08:31,360 INFO L138 BoogieDeclarations]: Found implementation of procedure g [2020-12-01 15:08:31,362 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-01 15:08:31,362 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-01 15:08:31,676 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-01 15:08:31,679 INFO L298 CfgBuilder]: Removed 4 assume(true) statements. [2020-12-01 15:08:31,694 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 03:08:31 BoogieIcfgContainer [2020-12-01 15:08:31,695 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-01 15:08:31,696 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-01 15:08:31,697 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-01 15:08:31,712 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-01 15:08:31,712 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.12 03:08:30" (1/3) ... [2020-12-01 15:08:31,713 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4bd589b8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.12 03:08:31, skipping insertion in model container [2020-12-01 15:08:31,713 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:08:31" (2/3) ... [2020-12-01 15:08:31,714 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4bd589b8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.12 03:08:31, skipping insertion in model container [2020-12-01 15:08:31,714 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 03:08:31" (3/3) ... [2020-12-01 15:08:31,715 INFO L111 eAbstractionObserver]: Analyzing ICFG MutualRecursion_1b.c [2020-12-01 15:08:31,730 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-01 15:08:31,748 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 10 error locations. [2020-12-01 15:08:31,760 INFO L253 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2020-12-01 15:08:31,813 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-01 15:08:31,814 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-01 15:08:31,814 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-01 15:08:31,814 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-01 15:08:31,814 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-01 15:08:31,814 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-01 15:08:31,814 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-01 15:08:31,815 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-01 15:08:31,850 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states. [2020-12-01 15:08:31,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-12-01 15:08:31,870 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 15:08:31,870 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2020-12-01 15:08:31,871 INFO L429 AbstractCegarLoop]: === Iteration 1 === [fErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr4ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-12-01 15:08:31,876 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:08:31,877 INFO L82 PathProgramCache]: Analyzing trace with hash 68150020, now seen corresponding path program 1 times [2020-12-01 15:08:31,902 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:08:31,902 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1085067333] [2020-12-01 15:08:31,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:08:32,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:08:32,183 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:08:32,184 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1085067333] [2020-12-01 15:08:32,185 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-01 15:08:32,185 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-01 15:08:32,185 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [929037935] [2020-12-01 15:08:32,200 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-01 15:08:32,200 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 15:08:32,214 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-01 15:08:32,215 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-01 15:08:32,217 INFO L87 Difference]: Start difference. First operand 42 states. Second operand 5 states. [2020-12-01 15:08:32,322 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:08:32,322 INFO L93 Difference]: Finished difference Result 64 states and 71 transitions. [2020-12-01 15:08:32,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-01 15:08:32,324 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 5 [2020-12-01 15:08:32,324 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 15:08:32,333 INFO L225 Difference]: With dead ends: 64 [2020-12-01 15:08:32,334 INFO L226 Difference]: Without dead ends: 56 [2020-12-01 15:08:32,337 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-12-01 15:08:32,355 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2020-12-01 15:08:32,380 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 50. [2020-12-01 15:08:32,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50 states. [2020-12-01 15:08:32,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 59 transitions. [2020-12-01 15:08:32,386 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 59 transitions. Word has length 5 [2020-12-01 15:08:32,386 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 15:08:32,386 INFO L481 AbstractCegarLoop]: Abstraction has 50 states and 59 transitions. [2020-12-01 15:08:32,386 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-01 15:08:32,386 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 59 transitions. [2020-12-01 15:08:32,387 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-12-01 15:08:32,387 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 15:08:32,387 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2020-12-01 15:08:32,387 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-01 15:08:32,388 INFO L429 AbstractCegarLoop]: === Iteration 2 === [fErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr4ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-12-01 15:08:32,389 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:08:32,389 INFO L82 PathProgramCache]: Analyzing trace with hash 2112650676, now seen corresponding path program 1 times [2020-12-01 15:08:32,389 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:08:32,390 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1291822365] [2020-12-01 15:08:32,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:08:32,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:08:32,408 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:08:32,409 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1291822365] [2020-12-01 15:08:32,409 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-01 15:08:32,409 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-01 15:08:32,410 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [709101585] [2020-12-01 15:08:32,411 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-01 15:08:32,411 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 15:08:32,412 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-01 15:08:32,413 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-01 15:08:32,413 INFO L87 Difference]: Start difference. First operand 50 states and 59 transitions. Second operand 3 states. [2020-12-01 15:08:32,448 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:08:32,449 INFO L93 Difference]: Finished difference Result 52 states and 62 transitions. [2020-12-01 15:08:32,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-01 15:08:32,450 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 6 [2020-12-01 15:08:32,451 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 15:08:32,452 INFO L225 Difference]: With dead ends: 52 [2020-12-01 15:08:32,453 INFO L226 Difference]: Without dead ends: 50 [2020-12-01 15:08:32,454 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 [2020-12-01 15:08:32,455 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2020-12-01 15:08:32,463 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 48. [2020-12-01 15:08:32,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48 states. [2020-12-01 15:08:32,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 55 transitions. [2020-12-01 15:08:32,466 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 55 transitions. Word has length 6 [2020-12-01 15:08:32,466 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 15:08:32,466 INFO L481 AbstractCegarLoop]: Abstraction has 48 states and 55 transitions. [2020-12-01 15:08:32,467 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-01 15:08:32,467 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 55 transitions. [2020-12-01 15:08:32,467 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-12-01 15:08:32,468 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 15:08:32,468 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:08:32,468 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-01 15:08:32,469 INFO L429 AbstractCegarLoop]: === Iteration 3 === [fErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr4ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-12-01 15:08:32,469 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:08:32,470 INFO L82 PathProgramCache]: Analyzing trace with hash 803040358, now seen corresponding path program 1 times [2020-12-01 15:08:32,470 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:08:32,470 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [718814840] [2020-12-01 15:08:32,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:08:32,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:08:32,560 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:08:32,560 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [718814840] [2020-12-01 15:08:32,561 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-01 15:08:32,561 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-12-01 15:08:32,561 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [566002961] [2020-12-01 15:08:32,562 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-01 15:08:32,562 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 15:08:32,563 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-01 15:08:32,563 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-12-01 15:08:32,563 INFO L87 Difference]: Start difference. First operand 48 states and 55 transitions. Second operand 9 states. [2020-12-01 15:08:32,733 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:08:32,734 INFO L93 Difference]: Finished difference Result 66 states and 77 transitions. [2020-12-01 15:08:32,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-12-01 15:08:32,735 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 13 [2020-12-01 15:08:32,735 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 15:08:32,736 INFO L225 Difference]: With dead ends: 66 [2020-12-01 15:08:32,736 INFO L226 Difference]: Without dead ends: 63 [2020-12-01 15:08:32,737 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=39, Invalid=117, Unknown=0, NotChecked=0, Total=156 [2020-12-01 15:08:32,738 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2020-12-01 15:08:32,747 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 59. [2020-12-01 15:08:32,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 59 states. [2020-12-01 15:08:32,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 70 transitions. [2020-12-01 15:08:32,749 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 70 transitions. Word has length 13 [2020-12-01 15:08:32,749 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 15:08:32,749 INFO L481 AbstractCegarLoop]: Abstraction has 59 states and 70 transitions. [2020-12-01 15:08:32,750 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-01 15:08:32,750 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 70 transitions. [2020-12-01 15:08:32,751 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-12-01 15:08:32,751 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 15:08:32,751 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:08:32,751 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-12-01 15:08:32,752 INFO L429 AbstractCegarLoop]: === Iteration 4 === [fErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr4ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-12-01 15:08:32,752 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:08:32,752 INFO L82 PathProgramCache]: Analyzing trace with hash -265858514, now seen corresponding path program 1 times [2020-12-01 15:08:32,753 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:08:32,753 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1441713121] [2020-12-01 15:08:32,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:08:32,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:08:32,781 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-12-01 15:08:32,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:08:32,798 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-12-01 15:08:32,798 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1441713121] [2020-12-01 15:08:32,798 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-01 15:08:32,799 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-01 15:08:32,799 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1734215132] [2020-12-01 15:08:32,799 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-01 15:08:32,799 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 15:08:32,800 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-01 15:08:32,800 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-01 15:08:32,801 INFO L87 Difference]: Start difference. First operand 59 states and 70 transitions. Second operand 3 states. [2020-12-01 15:08:32,819 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:08:32,819 INFO L93 Difference]: Finished difference Result 61 states and 77 transitions. [2020-12-01 15:08:32,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-01 15:08:32,822 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 17 [2020-12-01 15:08:32,823 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 15:08:32,827 INFO L225 Difference]: With dead ends: 61 [2020-12-01 15:08:32,827 INFO L226 Difference]: Without dead ends: 60 [2020-12-01 15:08:32,828 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-01 15:08:32,830 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2020-12-01 15:08:32,840 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 58. [2020-12-01 15:08:32,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 58 states. [2020-12-01 15:08:32,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 69 transitions. [2020-12-01 15:08:32,842 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 69 transitions. Word has length 17 [2020-12-01 15:08:32,843 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 15:08:32,843 INFO L481 AbstractCegarLoop]: Abstraction has 58 states and 69 transitions. [2020-12-01 15:08:32,843 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-01 15:08:32,843 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 69 transitions. [2020-12-01 15:08:32,844 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-12-01 15:08:32,844 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 15:08:32,844 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:08:32,844 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-12-01 15:08:32,845 INFO L429 AbstractCegarLoop]: === Iteration 5 === [fErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr4ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-12-01 15:08:32,845 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:08:32,845 INFO L82 PathProgramCache]: Analyzing trace with hash -1650762684, now seen corresponding path program 1 times [2020-12-01 15:08:32,846 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:08:32,846 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2119376868] [2020-12-01 15:08:32,846 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:08:32,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:08:32,921 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-12-01 15:08:32,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:08:32,958 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-12-01 15:08:32,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:08:32,981 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-12-01 15:08:32,982 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2119376868] [2020-12-01 15:08:32,982 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-01 15:08:32,983 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-01 15:08:32,983 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [901219463] [2020-12-01 15:08:32,983 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-01 15:08:32,984 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 15:08:32,986 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-01 15:08:32,987 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-01 15:08:32,989 INFO L87 Difference]: Start difference. First operand 58 states and 69 transitions. Second operand 5 states. [2020-12-01 15:08:33,065 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:08:33,065 INFO L93 Difference]: Finished difference Result 93 states and 122 transitions. [2020-12-01 15:08:33,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-01 15:08:33,066 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 21 [2020-12-01 15:08:33,066 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 15:08:33,070 INFO L225 Difference]: With dead ends: 93 [2020-12-01 15:08:33,071 INFO L226 Difference]: Without dead ends: 92 [2020-12-01 15:08:33,071 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-12-01 15:08:33,072 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2020-12-01 15:08:33,092 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 78. [2020-12-01 15:08:33,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 78 states. [2020-12-01 15:08:33,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 100 transitions. [2020-12-01 15:08:33,105 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 100 transitions. Word has length 21 [2020-12-01 15:08:33,106 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 15:08:33,106 INFO L481 AbstractCegarLoop]: Abstraction has 78 states and 100 transitions. [2020-12-01 15:08:33,106 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-01 15:08:33,106 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 100 transitions. [2020-12-01 15:08:33,107 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-12-01 15:08:33,107 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 15:08:33,107 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:08:33,108 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-12-01 15:08:33,108 INFO L429 AbstractCegarLoop]: === Iteration 6 === [fErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr4ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-12-01 15:08:33,108 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:08:33,109 INFO L82 PathProgramCache]: Analyzing trace with hash 365964416, now seen corresponding path program 1 times [2020-12-01 15:08:33,109 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:08:33,109 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2043369037] [2020-12-01 15:08:33,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:08:33,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:08:33,143 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-12-01 15:08:33,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:08:33,155 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-12-01 15:08:33,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:08:33,165 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-12-01 15:08:33,165 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2043369037] [2020-12-01 15:08:33,165 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-01 15:08:33,166 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-01 15:08:33,166 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1143618944] [2020-12-01 15:08:33,166 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-01 15:08:33,166 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 15:08:33,167 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-01 15:08:33,167 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-01 15:08:33,167 INFO L87 Difference]: Start difference. First operand 78 states and 100 transitions. Second operand 5 states. [2020-12-01 15:08:33,244 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:08:33,248 INFO L93 Difference]: Finished difference Result 93 states and 119 transitions. [2020-12-01 15:08:33,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-01 15:08:33,249 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 22 [2020-12-01 15:08:33,249 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 15:08:33,250 INFO L225 Difference]: With dead ends: 93 [2020-12-01 15:08:33,251 INFO L226 Difference]: Without dead ends: 89 [2020-12-01 15:08:33,251 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-12-01 15:08:33,254 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2020-12-01 15:08:33,263 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 78. [2020-12-01 15:08:33,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 78 states. [2020-12-01 15:08:33,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 99 transitions. [2020-12-01 15:08:33,272 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 99 transitions. Word has length 22 [2020-12-01 15:08:33,272 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 15:08:33,272 INFO L481 AbstractCegarLoop]: Abstraction has 78 states and 99 transitions. [2020-12-01 15:08:33,277 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-01 15:08:33,278 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 99 transitions. [2020-12-01 15:08:33,285 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2020-12-01 15:08:33,285 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 15:08:33,285 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-12-01 15:08:33,285 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-12-01 15:08:33,286 INFO L429 AbstractCegarLoop]: === Iteration 7 === [fErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr4ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-12-01 15:08:33,286 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:08:33,286 INFO L82 PathProgramCache]: Analyzing trace with hash -2082036524, now seen corresponding path program 1 times [2020-12-01 15:08:33,287 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:08:33,287 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2064022309] [2020-12-01 15:08:33,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:08:33,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:08:33,332 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-12-01 15:08:33,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:08:33,344 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2020-12-01 15:08:33,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:08:33,379 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2020-12-01 15:08:33,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:08:33,390 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-12-01 15:08:33,390 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2064022309] [2020-12-01 15:08:33,391 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1537463791] [2020-12-01 15:08:33,391 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_832b09fb-6a1b-456b-8c8f-c83485477e84/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 [2020-12-01 15:08:33,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:08:33,428 INFO L263 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 6 conjunts are in the unsatisfiable core [2020-12-01 15:08:33,434 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 15:08:33,569 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 5 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-12-01 15:08:33,569 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-01 15:08:33,569 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 7] total 10 [2020-12-01 15:08:33,570 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [410751999] [2020-12-01 15:08:33,570 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-12-01 15:08:33,570 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 15:08:33,571 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-12-01 15:08:33,571 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2020-12-01 15:08:33,572 INFO L87 Difference]: Start difference. First operand 78 states and 99 transitions. Second operand 10 states. [2020-12-01 15:08:33,792 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:08:33,792 INFO L93 Difference]: Finished difference Result 157 states and 204 transitions. [2020-12-01 15:08:33,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-12-01 15:08:33,793 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 32 [2020-12-01 15:08:33,793 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 15:08:33,794 INFO L225 Difference]: With dead ends: 157 [2020-12-01 15:08:33,794 INFO L226 Difference]: Without dead ends: 82 [2020-12-01 15:08:33,797 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=167, Unknown=0, NotChecked=0, Total=210 [2020-12-01 15:08:33,798 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states. [2020-12-01 15:08:33,806 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 78. [2020-12-01 15:08:33,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 78 states. [2020-12-01 15:08:33,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 92 transitions. [2020-12-01 15:08:33,808 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 92 transitions. Word has length 32 [2020-12-01 15:08:33,809 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 15:08:33,809 INFO L481 AbstractCegarLoop]: Abstraction has 78 states and 92 transitions. [2020-12-01 15:08:33,809 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-12-01 15:08:33,809 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 92 transitions. [2020-12-01 15:08:33,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2020-12-01 15:08:33,813 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 15:08:33,814 INFO L422 BasicCegarLoop]: trace histogram [9, 6, 6, 6, 6, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1] [2020-12-01 15:08:34,041 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2020-12-01 15:08:34,041 INFO L429 AbstractCegarLoop]: === Iteration 8 === [fErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr4ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-12-01 15:08:34,042 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:08:34,042 INFO L82 PathProgramCache]: Analyzing trace with hash 564914831, now seen corresponding path program 1 times [2020-12-01 15:08:34,042 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:08:34,042 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2117227660] [2020-12-01 15:08:34,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:08:34,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:08:34,186 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2020-12-01 15:08:34,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:08:34,201 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-12-01 15:08:34,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:08:34,211 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-12-01 15:08:34,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:08:34,214 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-12-01 15:08:34,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:08:34,255 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-12-01 15:08:34,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:08:34,283 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-12-01 15:08:34,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:08:34,295 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2020-12-01 15:08:34,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:08:34,327 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-12-01 15:08:34,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:08:34,335 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-12-01 15:08:34,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:08:34,369 INFO L134 CoverageAnalysis]: Checked inductivity of 211 backedges. 38 proven. 0 refuted. 0 times theorem prover too weak. 173 trivial. 0 not checked. [2020-12-01 15:08:34,370 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2117227660] [2020-12-01 15:08:34,371 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-01 15:08:34,371 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-12-01 15:08:34,371 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [958655563] [2020-12-01 15:08:34,372 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-12-01 15:08:34,373 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 15:08:34,373 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-12-01 15:08:34,374 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2020-12-01 15:08:34,374 INFO L87 Difference]: Start difference. First operand 78 states and 92 transitions. Second operand 8 states. [2020-12-01 15:08:34,448 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:08:34,448 INFO L93 Difference]: Finished difference Result 78 states and 92 transitions. [2020-12-01 15:08:34,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-12-01 15:08:34,449 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 102 [2020-12-01 15:08:34,452 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 15:08:34,454 INFO L225 Difference]: With dead ends: 78 [2020-12-01 15:08:34,454 INFO L226 Difference]: Without dead ends: 76 [2020-12-01 15:08:34,455 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2020-12-01 15:08:34,456 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2020-12-01 15:08:34,475 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 76. [2020-12-01 15:08:34,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 76 states. [2020-12-01 15:08:34,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 88 transitions. [2020-12-01 15:08:34,477 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 88 transitions. Word has length 102 [2020-12-01 15:08:34,478 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 15:08:34,478 INFO L481 AbstractCegarLoop]: Abstraction has 76 states and 88 transitions. [2020-12-01 15:08:34,478 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-12-01 15:08:34,478 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 88 transitions. [2020-12-01 15:08:34,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2020-12-01 15:08:34,488 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 15:08:34,488 INFO L422 BasicCegarLoop]: trace histogram [6, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:08:34,488 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-12-01 15:08:34,489 INFO L429 AbstractCegarLoop]: === Iteration 9 === [fErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr4ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-12-01 15:08:34,494 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:08:34,494 INFO L82 PathProgramCache]: Analyzing trace with hash -319407487, now seen corresponding path program 1 times [2020-12-01 15:08:34,495 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:08:34,495 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1129779440] [2020-12-01 15:08:34,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:08:34,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:08:34,559 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2020-12-01 15:08:34,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:08:34,607 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-12-01 15:08:34,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:08:34,621 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-12-01 15:08:34,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:08:34,630 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-12-01 15:08:34,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:08:34,658 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-12-01 15:08:34,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:08:34,667 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-12-01 15:08:34,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:08:34,683 INFO L134 CoverageAnalysis]: Checked inductivity of 82 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 82 trivial. 0 not checked. [2020-12-01 15:08:34,684 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1129779440] [2020-12-01 15:08:34,685 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-01 15:08:34,686 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-12-01 15:08:34,686 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1520124323] [2020-12-01 15:08:34,687 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-12-01 15:08:34,688 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 15:08:34,688 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-12-01 15:08:34,689 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2020-12-01 15:08:34,689 INFO L87 Difference]: Start difference. First operand 76 states and 88 transitions. Second operand 8 states. [2020-12-01 15:08:34,755 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:08:34,756 INFO L93 Difference]: Finished difference Result 76 states and 88 transitions. [2020-12-01 15:08:34,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-12-01 15:08:34,756 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 69 [2020-12-01 15:08:34,760 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 15:08:34,760 INFO L225 Difference]: With dead ends: 76 [2020-12-01 15:08:34,760 INFO L226 Difference]: Without dead ends: 0 [2020-12-01 15:08:34,765 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2020-12-01 15:08:34,765 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-12-01 15:08:34,765 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-12-01 15:08:34,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-12-01 15:08:34,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-12-01 15:08:34,766 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 69 [2020-12-01 15:08:34,766 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 15:08:34,766 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-12-01 15:08:34,766 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-12-01 15:08:34,766 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-12-01 15:08:34,767 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-12-01 15:08:34,767 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-12-01 15:08:34,769 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-12-01 15:08:35,046 INFO L262 CegarLoopResult]: For program point fFINAL(lines 11 15) no Hoare annotation was computed. [2020-12-01 15:08:35,046 INFO L258 CegarLoopResult]: At program point L14(line 14) the Hoare annotation is: (and (or (not (<= |f_#in~x| 2147483645)) (and (<= f_~x 2147483645) (<= 1 f_~x) (<= |f_#in~x| f_~x))) (not (<= (+ |f_#in~x| 1) 0))) [2020-12-01 15:08:35,047 INFO L262 CegarLoopResult]: For program point L13(lines 13 14) no Hoare annotation was computed. [2020-12-01 15:08:35,047 INFO L262 CegarLoopResult]: For program point L14-1(line 14) no Hoare annotation was computed. [2020-12-01 15:08:35,047 INFO L262 CegarLoopResult]: For program point L14-2(line 14) no Hoare annotation was computed. [2020-12-01 15:08:35,047 INFO L262 CegarLoopResult]: For program point L14-3(line 14) no Hoare annotation was computed. [2020-12-01 15:08:35,047 INFO L258 CegarLoopResult]: At program point L14-4(line 14) the Hoare annotation is: (and (not (<= (+ |f_#in~x| 1) 0)) (or (and (<= f_~x 2147483645) (<= |f_#t~ret0| 0) (<= 1 f_~x) (<= 0 |f_#t~ret0|) (<= |f_#in~x| f_~x)) (not (<= |f_#in~x| 2147483645)))) [2020-12-01 15:08:35,047 INFO L262 CegarLoopResult]: For program point L14-5(line 14) no Hoare annotation was computed. [2020-12-01 15:08:35,047 INFO L262 CegarLoopResult]: For program point fErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 14) no Hoare annotation was computed. [2020-12-01 15:08:35,048 INFO L262 CegarLoopResult]: For program point fErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 14) no Hoare annotation was computed. [2020-12-01 15:08:35,048 INFO L262 CegarLoopResult]: For program point L14-6(line 14) no Hoare annotation was computed. [2020-12-01 15:08:35,048 INFO L262 CegarLoopResult]: For program point fEXIT(lines 11 15) no Hoare annotation was computed. [2020-12-01 15:08:35,048 INFO L262 CegarLoopResult]: For program point L14-7(line 14) no Hoare annotation was computed. [2020-12-01 15:08:35,048 INFO L265 CegarLoopResult]: At program point fENTRY(lines 11 15) the Hoare annotation is: true [2020-12-01 15:08:35,048 INFO L262 CegarLoopResult]: For program point fErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 14) no Hoare annotation was computed. [2020-12-01 15:08:35,048 INFO L262 CegarLoopResult]: For program point fErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 14) no Hoare annotation was computed. [2020-12-01 15:08:35,048 INFO L262 CegarLoopResult]: For program point gFINAL(lines 17 21) no Hoare annotation was computed. [2020-12-01 15:08:35,049 INFO L262 CegarLoopResult]: For program point L20(line 20) no Hoare annotation was computed. [2020-12-01 15:08:35,049 INFO L262 CegarLoopResult]: For program point L19(lines 19 20) no Hoare annotation was computed. [2020-12-01 15:08:35,049 INFO L262 CegarLoopResult]: For program point L20-1(line 20) no Hoare annotation was computed. [2020-12-01 15:08:35,050 INFO L258 CegarLoopResult]: At program point L20-2(line 20) the Hoare annotation is: (and (or (not (<= |g_#in~x| 2147483645)) (<= 1 g_~x)) (or (= |g_#in~x| g_~x) (not (<= |g_#in~x| 2147483647)))) [2020-12-01 15:08:35,051 INFO L262 CegarLoopResult]: For program point L20-3(line 20) no Hoare annotation was computed. [2020-12-01 15:08:35,051 INFO L262 CegarLoopResult]: For program point L20-4(line 20) no Hoare annotation was computed. [2020-12-01 15:08:35,051 INFO L262 CegarLoopResult]: For program point L20-5(line 20) no Hoare annotation was computed. [2020-12-01 15:08:35,051 INFO L258 CegarLoopResult]: At program point L20-6(line 20) the Hoare annotation is: (or (and (<= 1 g_~x) (<= 0 |g_#t~ret2|) (= |g_#in~x| g_~x) (<= |g_#t~ret2| 0)) (not (<= |g_#in~x| 2147483647))) [2020-12-01 15:08:35,051 INFO L262 CegarLoopResult]: For program point L20-7(line 20) no Hoare annotation was computed. [2020-12-01 15:08:35,051 INFO L262 CegarLoopResult]: For program point L20-8(line 20) no Hoare annotation was computed. [2020-12-01 15:08:35,051 INFO L262 CegarLoopResult]: For program point L20-9(line 20) no Hoare annotation was computed. [2020-12-01 15:08:35,052 INFO L262 CegarLoopResult]: For program point gErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 20) no Hoare annotation was computed. [2020-12-01 15:08:35,052 INFO L262 CegarLoopResult]: For program point gEXIT(lines 17 21) no Hoare annotation was computed. [2020-12-01 15:08:35,052 INFO L262 CegarLoopResult]: For program point gErr4ASSERT_VIOLATIONINTEGER_OVERFLOW(line 20) no Hoare annotation was computed. [2020-12-01 15:08:35,052 INFO L265 CegarLoopResult]: At program point gENTRY(lines 17 21) the Hoare annotation is: true [2020-12-01 15:08:35,052 INFO L262 CegarLoopResult]: For program point gErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 20) no Hoare annotation was computed. [2020-12-01 15:08:35,052 INFO L262 CegarLoopResult]: For program point gErr5ASSERT_VIOLATIONINTEGER_OVERFLOW(line 20) no Hoare annotation was computed. [2020-12-01 15:08:35,052 INFO L262 CegarLoopResult]: For program point gErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 20) no Hoare annotation was computed. [2020-12-01 15:08:35,053 INFO L262 CegarLoopResult]: For program point gErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 20) no Hoare annotation was computed. [2020-12-01 15:08:35,053 INFO L262 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-12-01 15:08:35,053 INFO L262 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-12-01 15:08:35,053 INFO L262 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-12-01 15:08:35,053 INFO L258 CegarLoopResult]: At program point L26(line 26) the Hoare annotation is: (<= ULTIMATE.start_main_~x~0 2147483647) [2020-12-01 15:08:35,053 INFO L262 CegarLoopResult]: For program point L26-1(line 26) no Hoare annotation was computed. [2020-12-01 15:08:35,053 INFO L262 CegarLoopResult]: For program point L24(lines 24 27) no Hoare annotation was computed. [2020-12-01 15:08:35,059 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.12 03:08:35 BoogieIcfgContainer [2020-12-01 15:08:35,059 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-01 15:08:35,060 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-01 15:08:35,060 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-01 15:08:35,060 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-01 15:08:35,061 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 03:08:31" (3/4) ... [2020-12-01 15:08:35,064 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-12-01 15:08:35,070 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure f [2020-12-01 15:08:35,071 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure g [2020-12-01 15:08:35,078 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2020-12-01 15:08:35,079 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2020-12-01 15:08:35,130 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_832b09fb-6a1b-456b-8c8f-c83485477e84/bin/uautomizer/witness.graphml [2020-12-01 15:08:35,130 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-01 15:08:35,132 INFO L168 Benchmark]: Toolchain (without parser) took 4177.03 ms. Allocated memory was 90.2 MB in the beginning and 132.1 MB in the end (delta: 41.9 MB). Free memory was 61.2 MB in the beginning and 84.1 MB in the end (delta: -23.0 MB). Peak memory consumption was 18.0 MB. Max. memory is 16.1 GB. [2020-12-01 15:08:35,132 INFO L168 Benchmark]: CDTParser took 0.68 ms. Allocated memory is still 90.2 MB. Free memory was 47.2 MB in the beginning and 47.2 MB in the end (delta: 39.5 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 15:08:35,133 INFO L168 Benchmark]: CACSL2BoogieTranslator took 234.94 ms. Allocated memory is still 90.2 MB. Free memory was 61.0 MB in the beginning and 69.8 MB in the end (delta: -8.8 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-12-01 15:08:35,140 INFO L168 Benchmark]: Boogie Procedure Inliner took 36.39 ms. Allocated memory is still 90.2 MB. Free memory was 69.8 MB in the beginning and 68.5 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 15:08:35,147 INFO L168 Benchmark]: Boogie Preprocessor took 28.47 ms. Allocated memory is still 90.2 MB. Free memory was 68.5 MB in the beginning and 67.5 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 15:08:35,147 INFO L168 Benchmark]: RCFGBuilder took 422.52 ms. Allocated memory is still 90.2 MB. Free memory was 67.5 MB in the beginning and 55.9 MB in the end (delta: 11.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2020-12-01 15:08:35,148 INFO L168 Benchmark]: TraceAbstraction took 3363.18 ms. Allocated memory was 90.2 MB in the beginning and 132.1 MB in the end (delta: 41.9 MB). Free memory was 55.5 MB in the beginning and 87.3 MB in the end (delta: -31.7 MB). Peak memory consumption was 42.5 MB. Max. memory is 16.1 GB. [2020-12-01 15:08:35,148 INFO L168 Benchmark]: Witness Printer took 70.01 ms. Allocated memory is still 132.1 MB. Free memory was 87.3 MB in the beginning and 84.1 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-01 15:08:35,150 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.68 ms. Allocated memory is still 90.2 MB. Free memory was 47.2 MB in the beginning and 47.2 MB in the end (delta: 39.5 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 234.94 ms. Allocated memory is still 90.2 MB. Free memory was 61.0 MB in the beginning and 69.8 MB in the end (delta: -8.8 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 36.39 ms. Allocated memory is still 90.2 MB. Free memory was 69.8 MB in the beginning and 68.5 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 28.47 ms. Allocated memory is still 90.2 MB. Free memory was 68.5 MB in the beginning and 67.5 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 422.52 ms. Allocated memory is still 90.2 MB. Free memory was 67.5 MB in the beginning and 55.9 MB in the end (delta: 11.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * TraceAbstraction took 3363.18 ms. Allocated memory was 90.2 MB in the beginning and 132.1 MB in the end (delta: 41.9 MB). Free memory was 55.5 MB in the beginning and 87.3 MB in the end (delta: -31.7 MB). Peak memory consumption was 42.5 MB. Max. memory is 16.1 GB. * Witness Printer took 70.01 ms. Allocated memory is still 132.1 MB. Free memory was 87.3 MB in the beginning and 84.1 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 14]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 14]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 14]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 14]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 20]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 20]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 20]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 20]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 20]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 20]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - AllSpecificationsHoldResult: All specifications hold 10 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 42 locations, 10 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 2.9s, OverallIterations: 9, TraceHistogramMax: 9, AutomataDifference: 0.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.2s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 279 SDtfs, 216 SDslu, 818 SDs, 0 SdLazy, 458 SolverSat, 54 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 150 GetRequests, 96 SyntacticMatches, 0 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=78occurred in iteration=5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 9 MinimizatonAttempts, 43 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 64 PreInvPairs, 76 NumberOfFragments, 90 HoareAnnotationTreeSize, 64 FomulaSimplifications, 69 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 67 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 319 NumberOfCodeBlocks, 319 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 309 ConstructedInterpolants, 0 QuantifiedInterpolants, 34287 SizeOfPredicates, 2 NumberOfNonLiveVariables, 69 ConjunctsInSsa, 6 ConjunctsInUnsatCore, 10 InterpolantComputations, 8 PerfectInterpolantSequences, 322/326 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 proved your program to be correct! Received shutdown request...