./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-loops.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version e943c265 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16519a97-0b9c-433e-93ae-9942ff45f53d/bin/uautomizer-j4sWxH34Be/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16519a97-0b9c-433e-93ae-9942ff45f53d/bin/uautomizer-j4sWxH34Be/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16519a97-0b9c-433e-93ae-9942ff45f53d/bin/uautomizer-j4sWxH34Be/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16519a97-0b9c-433e-93ae-9942ff45f53d/bin/uautomizer-j4sWxH34Be/config/AutomizerReach.xml -i ../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-loops.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16519a97-0b9c-433e-93ae-9942ff45f53d/bin/uautomizer-j4sWxH34Be/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16519a97-0b9c-433e-93ae-9942ff45f53d/bin/uautomizer-j4sWxH34Be --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 9200f4b7c01ae534db411c2832d0714b6eaa58a9d668730c8aeb9497dccadca2 .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-e943c26 [2021-10-21 19:17:24,563 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-21 19:17:24,565 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-21 19:17:24,603 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-21 19:17:24,603 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-21 19:17:24,605 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-21 19:17:24,607 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-21 19:17:24,610 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-21 19:17:24,612 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-21 19:17:24,614 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-21 19:17:24,615 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-21 19:17:24,616 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-21 19:17:24,617 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-21 19:17:24,622 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-21 19:17:24,624 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-21 19:17:24,627 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-21 19:17:24,631 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-21 19:17:24,636 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-21 19:17:24,639 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-21 19:17:24,644 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-21 19:17:24,649 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-21 19:17:24,651 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-21 19:17:24,652 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-21 19:17:24,654 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-21 19:17:24,661 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-21 19:17:24,661 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-21 19:17:24,662 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-21 19:17:24,664 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-21 19:17:24,664 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-21 19:17:24,666 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-21 19:17:24,666 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-21 19:17:24,667 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-21 19:17:24,668 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-21 19:17:24,669 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-21 19:17:24,670 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-21 19:17:24,670 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-21 19:17:24,671 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-21 19:17:24,671 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-21 19:17:24,672 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-21 19:17:24,672 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-21 19:17:24,673 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-21 19:17:24,674 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16519a97-0b9c-433e-93ae-9942ff45f53d/bin/uautomizer-j4sWxH34Be/config/svcomp-Overflow-64bit-Automizer_Default.epf [2021-10-21 19:17:24,700 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-21 19:17:24,701 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-21 19:17:24,701 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-21 19:17:24,701 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-21 19:17:24,703 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-21 19:17:24,703 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-21 19:17:24,703 INFO L138 SettingsManager]: * Use SBE=true [2021-10-21 19:17:24,703 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-21 19:17:24,704 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-21 19:17:24,704 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-21 19:17:24,704 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-21 19:17:24,704 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-21 19:17:24,704 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-21 19:17:24,705 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-21 19:17:24,705 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2021-10-21 19:17:24,705 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-21 19:17:24,705 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-21 19:17:24,705 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-21 19:17:24,706 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-21 19:17:24,706 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-21 19:17:24,706 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-21 19:17:24,706 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-21 19:17:24,707 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-21 19:17:24,707 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-21 19:17:24,707 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-21 19:17:24,707 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-21 19:17:24,708 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-21 19:17:24,708 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-21 19:17:24,708 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-21 19:17:24,708 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16519a97-0b9c-433e-93ae-9942ff45f53d/bin/uautomizer-j4sWxH34Be/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16519a97-0b9c-433e-93ae-9942ff45f53d/bin/uautomizer-j4sWxH34Be Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9200f4b7c01ae534db411c2832d0714b6eaa58a9d668730c8aeb9497dccadca2 [2021-10-21 19:17:25,024 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-21 19:17:25,063 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-21 19:17:25,066 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-21 19:17:25,068 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-21 19:17:25,069 INFO L275 PluginConnector]: CDTParser initialized [2021-10-21 19:17:25,070 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16519a97-0b9c-433e-93ae-9942ff45f53d/bin/uautomizer-j4sWxH34Be/../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-loops.c [2021-10-21 19:17:25,156 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16519a97-0b9c-433e-93ae-9942ff45f53d/bin/uautomizer-j4sWxH34Be/data/ad93b95c7/b0b0448fafbc45aea341f4968c66e05a/FLAGb7aad742f [2021-10-21 19:17:25,695 INFO L306 CDTParser]: Found 1 translation units. [2021-10-21 19:17:25,696 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16519a97-0b9c-433e-93ae-9942ff45f53d/sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-loops.c [2021-10-21 19:17:25,707 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16519a97-0b9c-433e-93ae-9942ff45f53d/bin/uautomizer-j4sWxH34Be/data/ad93b95c7/b0b0448fafbc45aea341f4968c66e05a/FLAGb7aad742f [2021-10-21 19:17:26,053 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16519a97-0b9c-433e-93ae-9942ff45f53d/bin/uautomizer-j4sWxH34Be/data/ad93b95c7/b0b0448fafbc45aea341f4968c66e05a [2021-10-21 19:17:26,056 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-21 19:17:26,057 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-21 19:17:26,059 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-21 19:17:26,060 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-21 19:17:26,068 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-21 19:17:26,069 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 07:17:26" (1/1) ... [2021-10-21 19:17:26,070 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@73e178d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:17:26, skipping insertion in model container [2021-10-21 19:17:26,070 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 07:17:26" (1/1) ... [2021-10-21 19:17:26,091 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-21 19:17:26,104 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-21 19:17:26,302 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-21 19:17:26,307 INFO L203 MainTranslator]: Completed pre-run [2021-10-21 19:17:26,323 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-21 19:17:26,334 INFO L208 MainTranslator]: Completed translation [2021-10-21 19:17:26,334 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:17:26 WrapperNode [2021-10-21 19:17:26,335 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-21 19:17:26,336 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-21 19:17:26,336 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-21 19:17:26,336 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-21 19:17:26,343 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:17:26" (1/1) ... [2021-10-21 19:17:26,350 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:17:26" (1/1) ... [2021-10-21 19:17:26,366 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-21 19:17:26,367 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-21 19:17:26,367 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-21 19:17:26,367 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-21 19:17:26,376 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:17:26" (1/1) ... [2021-10-21 19:17:26,377 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:17:26" (1/1) ... [2021-10-21 19:17:26,377 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:17:26" (1/1) ... [2021-10-21 19:17:26,378 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:17:26" (1/1) ... [2021-10-21 19:17:26,387 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:17:26" (1/1) ... [2021-10-21 19:17:26,394 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:17:26" (1/1) ... [2021-10-21 19:17:26,400 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:17:26" (1/1) ... [2021-10-21 19:17:26,402 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-21 19:17:26,403 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-21 19:17:26,403 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-21 19:17:26,403 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-21 19:17:26,411 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:17:26" (1/1) ... [2021-10-21 19:17:26,420 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-21 19:17:26,433 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16519a97-0b9c-433e-93ae-9942ff45f53d/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:17:26,456 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16519a97-0b9c-433e-93ae-9942ff45f53d/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-21 19:17:26,469 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16519a97-0b9c-433e-93ae-9942ff45f53d/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-21 19:17:26,507 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-21 19:17:26,509 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-21 19:17:26,703 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-21 19:17:26,718 INFO L299 CfgBuilder]: Removed 6 assume(true) statements. [2021-10-21 19:17:26,720 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 07:17:26 BoogieIcfgContainer [2021-10-21 19:17:26,720 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-21 19:17:26,722 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-21 19:17:26,722 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-21 19:17:26,727 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-21 19:17:26,727 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.10 07:17:26" (1/3) ... [2021-10-21 19:17:26,728 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4fb0bedd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.10 07:17:26, skipping insertion in model container [2021-10-21 19:17:26,728 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:17:26" (2/3) ... [2021-10-21 19:17:26,729 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4fb0bedd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.10 07:17:26, skipping insertion in model container [2021-10-21 19:17:26,729 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 07:17:26" (3/3) ... [2021-10-21 19:17:26,730 INFO L111 eAbstractionObserver]: Analyzing ICFG AliasDarteFeautrierGonnord-SAS2010-loops.c [2021-10-21 19:17:26,736 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-21 19:17:26,737 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2021-10-21 19:17:26,782 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-21 19:17:26,789 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-10-21 19:17:26,790 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-10-21 19:17:26,805 INFO L276 IsEmpty]: Start isEmpty. Operand has 17 states, 12 states have (on average 1.8333333333333333) internal successors, (22), 16 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:17:26,810 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-10-21 19:17:26,810 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:17:26,811 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-10-21 19:17:26,811 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-10-21 19:17:26,817 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:17:26,818 INFO L82 PathProgramCache]: Analyzing trace with hash 29685419, now seen corresponding path program 1 times [2021-10-21 19:17:26,828 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:17:26,829 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [584978213] [2021-10-21 19:17:26,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:17:26,830 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:17:26,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:17:26,997 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:17:26,998 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:17:26,998 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [584978213] [2021-10-21 19:17:26,999 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [584978213] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 19:17:26,999 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:17:27,000 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-21 19:17:27,001 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [29937439] [2021-10-21 19:17:27,006 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-21 19:17:27,007 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:17:27,019 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-21 19:17:27,020 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 19:17:27,023 INFO L87 Difference]: Start difference. First operand has 17 states, 12 states have (on average 1.8333333333333333) internal successors, (22), 16 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:17:27,067 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:17:27,067 INFO L93 Difference]: Finished difference Result 35 states and 44 transitions. [2021-10-21 19:17:27,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-21 19:17:27,070 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2021-10-21 19:17:27,070 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:17:27,079 INFO L225 Difference]: With dead ends: 35 [2021-10-21 19:17:27,079 INFO L226 Difference]: Without dead ends: 12 [2021-10-21 19:17:27,082 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 6.3ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 19:17:27,130 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2021-10-21 19:17:27,158 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2021-10-21 19:17:27,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 9 states have (on average 1.5555555555555556) internal successors, (14), 11 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:17:27,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 14 transitions. [2021-10-21 19:17:27,162 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 14 transitions. Word has length 5 [2021-10-21 19:17:27,162 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:17:27,162 INFO L470 AbstractCegarLoop]: Abstraction has 12 states and 14 transitions. [2021-10-21 19:17:27,163 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:17:27,163 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 14 transitions. [2021-10-21 19:17:27,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-10-21 19:17:27,164 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:17:27,164 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-10-21 19:17:27,164 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-21 19:17:27,165 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-10-21 19:17:27,166 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:17:27,166 INFO L82 PathProgramCache]: Analyzing trace with hash 920230376, now seen corresponding path program 1 times [2021-10-21 19:17:27,166 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:17:27,167 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1742406818] [2021-10-21 19:17:27,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:17:27,167 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:17:27,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:17:27,254 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:17:27,254 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:17:27,255 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1742406818] [2021-10-21 19:17:27,255 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1742406818] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 19:17:27,255 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:17:27,255 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-21 19:17:27,256 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2041377273] [2021-10-21 19:17:27,257 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-21 19:17:27,257 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:17:27,258 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-21 19:17:27,259 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 19:17:27,259 INFO L87 Difference]: Start difference. First operand 12 states and 14 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:17:27,301 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:17:27,301 INFO L93 Difference]: Finished difference Result 20 states and 24 transitions. [2021-10-21 19:17:27,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-21 19:17:27,302 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2021-10-21 19:17:27,302 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:17:27,302 INFO L225 Difference]: With dead ends: 20 [2021-10-21 19:17:27,303 INFO L226 Difference]: Without dead ends: 19 [2021-10-21 19:17:27,303 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.3ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 19:17:27,304 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2021-10-21 19:17:27,307 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 14. [2021-10-21 19:17:27,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 11 states have (on average 1.5454545454545454) internal successors, (17), 13 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:17:27,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 17 transitions. [2021-10-21 19:17:27,308 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 17 transitions. Word has length 6 [2021-10-21 19:17:27,309 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:17:27,309 INFO L470 AbstractCegarLoop]: Abstraction has 14 states and 17 transitions. [2021-10-21 19:17:27,309 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:17:27,309 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 17 transitions. [2021-10-21 19:17:27,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-10-21 19:17:27,310 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:17:27,310 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-10-21 19:17:27,310 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-21 19:17:27,311 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-10-21 19:17:27,312 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:17:27,312 INFO L82 PathProgramCache]: Analyzing trace with hash 920248058, now seen corresponding path program 1 times [2021-10-21 19:17:27,312 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:17:27,312 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1259651534] [2021-10-21 19:17:27,313 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:17:27,313 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:17:27,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:17:27,344 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:17:27,344 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:17:27,345 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1259651534] [2021-10-21 19:17:27,345 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1259651534] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 19:17:27,345 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:17:27,345 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-21 19:17:27,346 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [280778083] [2021-10-21 19:17:27,346 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-21 19:17:27,347 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:17:27,348 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-21 19:17:27,348 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 19:17:27,349 INFO L87 Difference]: Start difference. First operand 14 states and 17 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:17:27,399 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:17:27,399 INFO L93 Difference]: Finished difference Result 15 states and 18 transitions. [2021-10-21 19:17:27,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-21 19:17:27,400 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2021-10-21 19:17:27,400 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:17:27,400 INFO L225 Difference]: With dead ends: 15 [2021-10-21 19:17:27,401 INFO L226 Difference]: Without dead ends: 14 [2021-10-21 19:17:27,401 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.9ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 19:17:27,401 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2021-10-21 19:17:27,404 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 13. [2021-10-21 19:17:27,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 11 states have (on average 1.4545454545454546) internal successors, (16), 12 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:17:27,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 16 transitions. [2021-10-21 19:17:27,405 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 16 transitions. Word has length 6 [2021-10-21 19:17:27,406 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:17:27,406 INFO L470 AbstractCegarLoop]: Abstraction has 13 states and 16 transitions. [2021-10-21 19:17:27,406 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:17:27,406 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 16 transitions. [2021-10-21 19:17:27,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-10-21 19:17:27,407 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:17:27,407 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:17:27,407 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-10-21 19:17:27,408 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-10-21 19:17:27,408 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:17:27,409 INFO L82 PathProgramCache]: Analyzing trace with hash -1537629357, now seen corresponding path program 1 times [2021-10-21 19:17:27,409 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:17:27,409 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1438767799] [2021-10-21 19:17:27,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:17:27,410 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:17:27,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:17:27,466 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:17:27,466 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:17:27,468 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1438767799] [2021-10-21 19:17:27,468 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1438767799] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 19:17:27,469 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:17:27,470 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-21 19:17:27,472 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2094153408] [2021-10-21 19:17:27,474 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-21 19:17:27,474 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:17:27,476 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-21 19:17:27,479 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 19:17:27,479 INFO L87 Difference]: Start difference. First operand 13 states and 16 transitions. Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:17:27,510 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:17:27,511 INFO L93 Difference]: Finished difference Result 14 states and 17 transitions. [2021-10-21 19:17:27,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-21 19:17:27,511 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2021-10-21 19:17:27,512 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:17:27,512 INFO L225 Difference]: With dead ends: 14 [2021-10-21 19:17:27,512 INFO L226 Difference]: Without dead ends: 13 [2021-10-21 19:17:27,513 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 4.7ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 19:17:27,514 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2021-10-21 19:17:27,517 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 12. [2021-10-21 19:17:27,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 11 states have (on average 1.3636363636363635) internal successors, (15), 11 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:17:27,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 15 transitions. [2021-10-21 19:17:27,522 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 15 transitions. Word has length 7 [2021-10-21 19:17:27,523 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:17:27,523 INFO L470 AbstractCegarLoop]: Abstraction has 12 states and 15 transitions. [2021-10-21 19:17:27,523 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:17:27,523 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 15 transitions. [2021-10-21 19:17:27,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-10-21 19:17:27,524 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:17:27,524 INFO L512 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:17:27,525 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-10-21 19:17:27,525 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-10-21 19:17:27,527 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:17:27,529 INFO L82 PathProgramCache]: Analyzing trace with hash -193060491, now seen corresponding path program 1 times [2021-10-21 19:17:27,529 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:17:27,529 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [107408259] [2021-10-21 19:17:27,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:17:27,530 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:17:27,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:17:27,591 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:17:27,592 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:17:27,592 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [107408259] [2021-10-21 19:17:27,592 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [107408259] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:17:27,593 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2027191136] [2021-10-21 19:17:27,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:17:27,594 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 19:17:27,594 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16519a97-0b9c-433e-93ae-9942ff45f53d/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:17:27,599 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16519a97-0b9c-433e-93ae-9942ff45f53d/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 19:17:27,618 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16519a97-0b9c-433e-93ae-9942ff45f53d/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-10-21 19:17:27,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:17:27,646 INFO L263 TraceCheckSpWp]: Trace formula consists of 25 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-21 19:17:27,651 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:17:27,751 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:17:27,752 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2027191136] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:17:27,752 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-21 19:17:27,752 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 3 [2021-10-21 19:17:27,753 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1858842844] [2021-10-21 19:17:27,753 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-21 19:17:27,754 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:17:27,755 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-21 19:17:27,755 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-21 19:17:27,756 INFO L87 Difference]: Start difference. First operand 12 states and 15 transitions. Second operand has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:17:27,793 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:17:27,793 INFO L93 Difference]: Finished difference Result 23 states and 27 transitions. [2021-10-21 19:17:27,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-21 19:17:27,795 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2021-10-21 19:17:27,796 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:17:27,797 INFO L225 Difference]: With dead ends: 23 [2021-10-21 19:17:27,797 INFO L226 Difference]: Without dead ends: 22 [2021-10-21 19:17:27,798 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 1 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 14.6ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-21 19:17:27,799 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2021-10-21 19:17:27,802 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 15. [2021-10-21 19:17:27,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 14 states have (on average 1.3571428571428572) internal successors, (19), 14 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:17:27,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 19 transitions. [2021-10-21 19:17:27,808 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 19 transitions. Word has length 9 [2021-10-21 19:17:27,809 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:17:27,809 INFO L470 AbstractCegarLoop]: Abstraction has 15 states and 19 transitions. [2021-10-21 19:17:27,810 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:17:27,811 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 19 transitions. [2021-10-21 19:17:27,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-10-21 19:17:27,813 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:17:27,813 INFO L512 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1] [2021-10-21 19:17:27,851 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16519a97-0b9c-433e-93ae-9942ff45f53d/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-10-21 19:17:28,034 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16519a97-0b9c-433e-93ae-9942ff45f53d/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 19:17:28,034 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-10-21 19:17:28,035 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:17:28,035 INFO L82 PathProgramCache]: Analyzing trace with hash -503819576, now seen corresponding path program 2 times [2021-10-21 19:17:28,035 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:17:28,036 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [731058366] [2021-10-21 19:17:28,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:17:28,036 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:17:28,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:17:28,082 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-10-21 19:17:28,082 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:17:28,082 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [731058366] [2021-10-21 19:17:28,082 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [731058366] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:17:28,083 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [385582199] [2021-10-21 19:17:28,083 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-21 19:17:28,083 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 19:17:28,083 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16519a97-0b9c-433e-93ae-9942ff45f53d/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:17:28,084 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16519a97-0b9c-433e-93ae-9942ff45f53d/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 19:17:28,093 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16519a97-0b9c-433e-93ae-9942ff45f53d/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-10-21 19:17:28,134 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-10-21 19:17:28,134 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-21 19:17:28,141 INFO L263 TraceCheckSpWp]: Trace formula consists of 20 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-21 19:17:28,142 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:17:28,221 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-10-21 19:17:28,222 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [385582199] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:17:28,222 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-21 19:17:28,222 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 3 [2021-10-21 19:17:28,222 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2126430861] [2021-10-21 19:17:28,223 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-21 19:17:28,223 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:17:28,224 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-21 19:17:28,224 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-21 19:17:28,224 INFO L87 Difference]: Start difference. First operand 15 states and 19 transitions. Second operand has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:17:28,280 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:17:28,281 INFO L93 Difference]: Finished difference Result 18 states and 22 transitions. [2021-10-21 19:17:28,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-21 19:17:28,281 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2021-10-21 19:17:28,282 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:17:28,282 INFO L225 Difference]: With dead ends: 18 [2021-10-21 19:17:28,282 INFO L226 Difference]: Without dead ends: 0 [2021-10-21 19:17:28,283 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 11 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 14.9ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-21 19:17:28,283 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-21 19:17:28,283 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-21 19:17:28,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:17:28,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-21 19:17:28,284 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 12 [2021-10-21 19:17:28,284 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:17:28,284 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-21 19:17:28,284 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:17:28,284 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-21 19:17:28,285 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-21 19:17:28,287 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-21 19:17:28,288 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-21 19:17:28,288 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-21 19:17:28,288 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-21 19:17:28,329 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16519a97-0b9c-433e-93ae-9942ff45f53d/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-10-21 19:17:28,518 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16519a97-0b9c-433e-93ae-9942ff45f53d/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 19:17:28,520 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-10-21 19:17:28,523 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-21 19:17:28,554 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-21 19:17:28,555 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-21 19:17:28,582 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 23) no Hoare annotation was computed. [2021-10-21 19:17:28,582 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-10-21 19:17:28,582 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 26) no Hoare annotation was computed. [2021-10-21 19:17:28,583 INFO L860 garLoopResultBuilder]: At program point L29(lines 13 30) the Hoare annotation is: true [2021-10-21 19:17:28,583 INFO L857 garLoopResultBuilder]: For program point L23(line 23) no Hoare annotation was computed. [2021-10-21 19:17:28,583 INFO L857 garLoopResultBuilder]: For program point L23-1(line 23) no Hoare annotation was computed. [2021-10-21 19:17:28,584 INFO L857 garLoopResultBuilder]: For program point L21(lines 21 25) no Hoare annotation was computed. [2021-10-21 19:17:28,584 INFO L857 garLoopResultBuilder]: For program point L21-1(lines 21 25) no Hoare annotation was computed. [2021-10-21 19:17:28,584 INFO L853 garLoopResultBuilder]: At program point L19-2(lines 19 27) the Hoare annotation is: (<= ULTIMATE.start_main_~x~0 1073741823) [2021-10-21 19:17:28,584 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 23) no Hoare annotation was computed. [2021-10-21 19:17:28,585 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 26) no Hoare annotation was computed. [2021-10-21 19:17:28,585 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-10-21 19:17:28,585 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-10-21 19:17:28,585 INFO L857 garLoopResultBuilder]: For program point L26(line 26) no Hoare annotation was computed. [2021-10-21 19:17:28,586 INFO L853 garLoopResultBuilder]: At program point L22-2(lines 22 24) the Hoare annotation is: (and (<= ULTIMATE.start_main_~x~0 1073741823) (<= 1 ULTIMATE.start_main_~y~0) (<= 0 ULTIMATE.start_main_~x~0)) [2021-10-21 19:17:28,586 INFO L857 garLoopResultBuilder]: For program point L18(lines 18 28) no Hoare annotation was computed. [2021-10-21 19:17:28,586 INFO L857 garLoopResultBuilder]: For program point L18-1(lines 18 28) no Hoare annotation was computed. [2021-10-21 19:17:28,593 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-21 19:17:28,610 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.10 07:17:28 BoogieIcfgContainer [2021-10-21 19:17:28,610 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-21 19:17:28,611 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-21 19:17:28,611 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-21 19:17:28,611 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-21 19:17:28,612 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 07:17:26" (3/4) ... [2021-10-21 19:17:28,615 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-21 19:17:28,629 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2021-10-21 19:17:28,629 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-10-21 19:17:28,676 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16519a97-0b9c-433e-93ae-9942ff45f53d/bin/uautomizer-j4sWxH34Be/witness.graphml [2021-10-21 19:17:28,676 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-21 19:17:28,678 INFO L168 Benchmark]: Toolchain (without parser) took 2619.67 ms. Allocated memory was 90.2 MB in the beginning and 134.2 MB in the end (delta: 44.0 MB). Free memory was 50.4 MB in the beginning and 72.2 MB in the end (delta: -21.8 MB). Peak memory consumption was 22.7 MB. Max. memory is 16.1 GB. [2021-10-21 19:17:28,678 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 90.2 MB. Free memory is still 66.3 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-21 19:17:28,679 INFO L168 Benchmark]: CACSL2BoogieTranslator took 275.58 ms. Allocated memory is still 90.2 MB. Free memory was 50.2 MB in the beginning and 65.0 MB in the end (delta: -14.7 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-21 19:17:28,679 INFO L168 Benchmark]: Boogie Procedure Inliner took 30.18 ms. Allocated memory is still 90.2 MB. Free memory was 65.0 MB in the beginning and 63.7 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-21 19:17:28,680 INFO L168 Benchmark]: Boogie Preprocessor took 35.11 ms. Allocated memory is still 90.2 MB. Free memory was 63.7 MB in the beginning and 62.6 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-21 19:17:28,680 INFO L168 Benchmark]: RCFGBuilder took 317.77 ms. Allocated memory is still 90.2 MB. Free memory was 62.6 MB in the beginning and 54.2 MB in the end (delta: 8.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-21 19:17:28,681 INFO L168 Benchmark]: TraceAbstraction took 1888.22 ms. Allocated memory was 90.2 MB in the beginning and 134.2 MB in the end (delta: 44.0 MB). Free memory was 53.9 MB in the beginning and 74.3 MB in the end (delta: -20.4 MB). Peak memory consumption was 25.3 MB. Max. memory is 16.1 GB. [2021-10-21 19:17:28,686 INFO L168 Benchmark]: Witness Printer took 65.56 ms. Allocated memory is still 134.2 MB. Free memory was 74.3 MB in the beginning and 72.2 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-21 19:17:28,689 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 90.2 MB. Free memory is still 66.3 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 275.58 ms. Allocated memory is still 90.2 MB. Free memory was 50.2 MB in the beginning and 65.0 MB in the end (delta: -14.7 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 30.18 ms. Allocated memory is still 90.2 MB. Free memory was 65.0 MB in the beginning and 63.7 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 35.11 ms. Allocated memory is still 90.2 MB. Free memory was 63.7 MB in the beginning and 62.6 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 317.77 ms. Allocated memory is still 90.2 MB. Free memory was 62.6 MB in the beginning and 54.2 MB in the end (delta: 8.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * TraceAbstraction took 1888.22 ms. Allocated memory was 90.2 MB in the beginning and 134.2 MB in the end (delta: 44.0 MB). Free memory was 53.9 MB in the beginning and 74.3 MB in the end (delta: -20.4 MB). Peak memory consumption was 25.3 MB. Max. memory is 16.1 GB. * Witness Printer took 65.56 ms. Allocated memory is still 134.2 MB. Free memory was 74.3 MB in the beginning and 72.2 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 23]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 23]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 26]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 26]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 17 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 1812.8ms, OverallIterations: 6, TraceHistogramMax: 3, EmptinessCheckTime: 13.7ms, AutomataDifference: 317.3ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 63.0ms, InitialAbstractionConstructionTime: 10.9ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 42 SDtfs, 56 SDslu, 14 SDs, 0 SdLazy, 73 SolverSat, 9 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 154.9ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 34 GetRequests, 23 SyntacticMatches, 2 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 47.9ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=17occurred in iteration=0, InterpolantAutomatonStates: 20, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 60.1ms AutomataMinimizationTime, 6 MinimizatonAttempts, 14 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: 0.0ms HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 10 NumberOfFragments, 14 HoareAnnotationTreeSize, 3 FomulaSimplifications, 391 FormulaSimplificationTreeSizeReduction, 38.8ms HoareSimplificationTime, 3 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 17.9ms HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 50.2ms SsaConstructionTime, 95.6ms SatisfiabilityAnalysisTime, 433.8ms InterpolantComputationTime, 66 NumberOfCodeBlocks, 60 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 58 ConstructedInterpolants, 0 QuantifiedInterpolants, 150 SizeOfPredicates, 1 NumberOfNonLiveVariables, 45 ConjunctsInSsa, 6 ConjunctsInUnsatCore, 8 InterpolantComputations, 4 PerfectInterpolantSequences, 10/18 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 - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold - InvariantResult [Line: 19]: Loop Invariant Derived loop invariant: x <= 1073741823 - InvariantResult [Line: 13]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 22]: Loop Invariant Derived loop invariant: (x <= 1073741823 && 1 <= y) && 0 <= x RESULT: Ultimate proved your program to be correct! [2021-10-21 19:17:28,742 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16519a97-0b9c-433e-93ae-9942ff45f53d/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...