./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-complex.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 9ad7fb26 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7c82792-8e3c-46bf-89c4-d056d17dc58d/bin/utaipan-aC7eJsxGYH/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7c82792-8e3c-46bf-89c4-d056d17dc58d/bin/utaipan-aC7eJsxGYH/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7c82792-8e3c-46bf-89c4-d056d17dc58d/bin/utaipan-aC7eJsxGYH/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7c82792-8e3c-46bf-89c4-d056d17dc58d/bin/utaipan-aC7eJsxGYH/config/TaipanReach.xml -i ../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-complex.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7c82792-8e3c-46bf-89c4-d056d17dc58d/bin/utaipan-aC7eJsxGYH/config/svcomp-Overflow-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7c82792-8e3c-46bf-89c4-d056d17dc58d/bin/utaipan-aC7eJsxGYH --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 Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash b8c16e949b804a2902e47966e35d88e859ba571c4506ac61977253ace96daf78 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-9ad7fb2 [2021-11-03 04:38:27,659 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-03 04:38:27,661 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-03 04:38:27,707 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-03 04:38:27,708 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-03 04:38:27,709 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-03 04:38:27,711 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-03 04:38:27,713 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-03 04:38:27,715 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-03 04:38:27,716 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-03 04:38:27,717 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-03 04:38:27,718 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-03 04:38:27,718 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-03 04:38:27,720 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-03 04:38:27,721 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-03 04:38:27,722 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-03 04:38:27,723 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-03 04:38:27,724 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-03 04:38:27,726 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-03 04:38:27,728 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-03 04:38:27,730 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-03 04:38:27,739 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-03 04:38:27,740 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-03 04:38:27,741 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-03 04:38:27,744 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-03 04:38:27,744 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-03 04:38:27,745 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-03 04:38:27,746 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-03 04:38:27,746 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-03 04:38:27,747 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-03 04:38:27,748 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-03 04:38:27,748 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-03 04:38:27,749 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-03 04:38:27,750 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-03 04:38:27,751 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-03 04:38:27,752 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-03 04:38:27,752 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-03 04:38:27,753 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-03 04:38:27,753 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-03 04:38:27,754 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-03 04:38:27,755 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-03 04:38:27,758 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7c82792-8e3c-46bf-89c4-d056d17dc58d/bin/utaipan-aC7eJsxGYH/config/svcomp-Overflow-64bit-Taipan_Default.epf [2021-11-03 04:38:27,801 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-03 04:38:27,801 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-03 04:38:27,802 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-03 04:38:27,802 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-03 04:38:27,802 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-03 04:38:27,803 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-03 04:38:27,803 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-03 04:38:27,803 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-03 04:38:27,803 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-03 04:38:27,803 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-03 04:38:27,810 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-03 04:38:27,810 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-03 04:38:27,810 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-03 04:38:27,810 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-03 04:38:27,811 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-03 04:38:27,811 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-03 04:38:27,812 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-03 04:38:27,812 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-03 04:38:27,812 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-03 04:38:27,812 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-03 04:38:27,812 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-03 04:38:27,812 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-03 04:38:27,813 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2021-11-03 04:38:27,813 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-03 04:38:27,813 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-03 04:38:27,813 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-03 04:38:27,813 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-03 04:38:27,814 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-03 04:38:27,814 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 04:38:27,814 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-03 04:38:27,814 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-03 04:38:27,814 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-03 04:38:27,815 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-03 04:38:27,815 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-03 04:38:27,815 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-03 04:38:27,815 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-03 04:38:27,815 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-03 04:38:27,815 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_f7c82792-8e3c-46bf-89c4-d056d17dc58d/bin/utaipan-aC7eJsxGYH/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7c82792-8e3c-46bf-89c4-d056d17dc58d/bin/utaipan-aC7eJsxGYH Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b8c16e949b804a2902e47966e35d88e859ba571c4506ac61977253ace96daf78 [2021-11-03 04:38:28,069 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-03 04:38:28,088 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-03 04:38:28,090 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-03 04:38:28,091 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-03 04:38:28,092 INFO L275 PluginConnector]: CDTParser initialized [2021-11-03 04:38:28,093 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7c82792-8e3c-46bf-89c4-d056d17dc58d/bin/utaipan-aC7eJsxGYH/../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-complex.c [2021-11-03 04:38:28,162 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7c82792-8e3c-46bf-89c4-d056d17dc58d/bin/utaipan-aC7eJsxGYH/data/2d6e2836d/d3ef5a4d3cda468cb74f84d3464115bf/FLAGd57b85822 [2021-11-03 04:38:28,637 INFO L306 CDTParser]: Found 1 translation units. [2021-11-03 04:38:28,637 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7c82792-8e3c-46bf-89c4-d056d17dc58d/sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-complex.c [2021-11-03 04:38:28,652 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7c82792-8e3c-46bf-89c4-d056d17dc58d/bin/utaipan-aC7eJsxGYH/data/2d6e2836d/d3ef5a4d3cda468cb74f84d3464115bf/FLAGd57b85822 [2021-11-03 04:38:29,041 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7c82792-8e3c-46bf-89c4-d056d17dc58d/bin/utaipan-aC7eJsxGYH/data/2d6e2836d/d3ef5a4d3cda468cb74f84d3464115bf [2021-11-03 04:38:29,046 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-03 04:38:29,048 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-03 04:38:29,052 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-03 04:38:29,052 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-03 04:38:29,055 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-03 04:38:29,056 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 04:38:29" (1/1) ... [2021-11-03 04:38:29,058 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@55f5757b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:38:29, skipping insertion in model container [2021-11-03 04:38:29,058 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 04:38:29" (1/1) ... [2021-11-03 04:38:29,066 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-03 04:38:29,077 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-03 04:38:29,233 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 04:38:29,236 INFO L203 MainTranslator]: Completed pre-run [2021-11-03 04:38:29,253 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 04:38:29,264 INFO L208 MainTranslator]: Completed translation [2021-11-03 04:38:29,265 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:38:29 WrapperNode [2021-11-03 04:38:29,265 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-03 04:38:29,266 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-03 04:38:29,266 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-03 04:38:29,266 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-03 04:38:29,273 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:38:29" (1/1) ... [2021-11-03 04:38:29,282 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:38:29" (1/1) ... [2021-11-03 04:38:29,303 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-03 04:38:29,304 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-03 04:38:29,304 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-03 04:38:29,304 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-03 04:38:29,318 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:38:29" (1/1) ... [2021-11-03 04:38:29,318 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:38:29" (1/1) ... [2021-11-03 04:38:29,320 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:38:29" (1/1) ... [2021-11-03 04:38:29,321 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:38:29" (1/1) ... [2021-11-03 04:38:29,326 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:38:29" (1/1) ... [2021-11-03 04:38:29,329 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:38:29" (1/1) ... [2021-11-03 04:38:29,330 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:38:29" (1/1) ... [2021-11-03 04:38:29,331 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-03 04:38:29,332 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-03 04:38:29,333 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-03 04:38:29,333 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-03 04:38:29,334 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:38:29" (1/1) ... [2021-11-03 04:38:29,340 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 04:38:29,351 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7c82792-8e3c-46bf-89c4-d056d17dc58d/bin/utaipan-aC7eJsxGYH/z3 [2021-11-03 04:38:29,362 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7c82792-8e3c-46bf-89c4-d056d17dc58d/bin/utaipan-aC7eJsxGYH/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-03 04:38:29,374 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7c82792-8e3c-46bf-89c4-d056d17dc58d/bin/utaipan-aC7eJsxGYH/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-03 04:38:29,399 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-03 04:38:29,400 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-03 04:38:29,589 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-03 04:38:29,589 INFO L299 CfgBuilder]: Removed 6 assume(true) statements. [2021-11-03 04:38:29,591 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 04:38:29 BoogieIcfgContainer [2021-11-03 04:38:29,591 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-03 04:38:29,593 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-03 04:38:29,593 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-03 04:38:29,596 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-03 04:38:29,596 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 04:38:29" (1/3) ... [2021-11-03 04:38:29,601 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@721481a7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 04:38:29, skipping insertion in model container [2021-11-03 04:38:29,601 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:38:29" (2/3) ... [2021-11-03 04:38:29,601 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@721481a7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 04:38:29, skipping insertion in model container [2021-11-03 04:38:29,601 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 04:38:29" (3/3) ... [2021-11-03 04:38:29,603 INFO L111 eAbstractionObserver]: Analyzing ICFG AliasDarteFeautrierGonnord-SAS2010-complex.c [2021-11-03 04:38:29,607 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-03 04:38:29,607 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 12 error locations. [2021-11-03 04:38:29,650 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-03 04:38:29,656 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-03 04:38:29,657 INFO L340 AbstractCegarLoop]: Starting to check reachability of 12 error locations. [2021-11-03 04:38:29,674 INFO L276 IsEmpty]: Start isEmpty. Operand has 30 states, 17 states have (on average 1.9411764705882353) internal successors, (33), 29 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:38:29,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-11-03 04:38:29,678 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:38:29,679 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2021-11-03 04:38:29,680 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2021-11-03 04:38:29,685 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:38:29,686 INFO L85 PathProgramCache]: Analyzing trace with hash 965143, now seen corresponding path program 1 times [2021-11-03 04:38:29,694 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-03 04:38:29,694 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [672487172] [2021-11-03 04:38:29,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:38:29,695 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 04:38:29,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:38:29,899 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:38:29,899 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-03 04:38:29,900 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [672487172] [2021-11-03 04:38:29,902 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [672487172] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-03 04:38:29,902 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:38:29,902 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-03 04:38:29,904 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [176806904] [2021-11-03 04:38:29,913 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-03 04:38:29,913 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-03 04:38:29,933 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-03 04:38:29,934 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 04:38:29,943 INFO L87 Difference]: Start difference. First operand has 30 states, 17 states have (on average 1.9411764705882353) internal successors, (33), 29 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:38:30,073 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:38:30,074 INFO L93 Difference]: Finished difference Result 50 states and 59 transitions. [2021-11-03 04:38:30,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-03 04:38:30,075 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2021-11-03 04:38:30,076 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:38:30,084 INFO L225 Difference]: With dead ends: 50 [2021-11-03 04:38:30,087 INFO L226 Difference]: Without dead ends: 46 [2021-11-03 04:38:30,089 INFO L786 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 [2021-11-03 04:38:30,106 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2021-11-03 04:38:30,126 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 39. [2021-11-03 04:38:30,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39 states, 27 states have (on average 1.8148148148148149) internal successors, (49), 38 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:38:30,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 49 transitions. [2021-11-03 04:38:30,132 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 49 transitions. Word has length 4 [2021-11-03 04:38:30,133 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:38:30,134 INFO L470 AbstractCegarLoop]: Abstraction has 39 states and 49 transitions. [2021-11-03 04:38:30,134 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:38:30,134 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 49 transitions. [2021-11-03 04:38:30,135 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-11-03 04:38:30,135 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:38:30,135 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-11-03 04:38:30,136 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-03 04:38:30,136 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2021-11-03 04:38:30,140 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:38:30,141 INFO L85 PathProgramCache]: Analyzing trace with hash 29869546, now seen corresponding path program 1 times [2021-11-03 04:38:30,141 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-03 04:38:30,141 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1116582220] [2021-11-03 04:38:30,141 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:38:30,142 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 04:38:30,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:38:30,194 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:38:30,194 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-03 04:38:30,194 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1116582220] [2021-11-03 04:38:30,195 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1116582220] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-03 04:38:30,195 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:38:30,196 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-03 04:38:30,196 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1675897452] [2021-11-03 04:38:30,197 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-03 04:38:30,198 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-03 04:38:30,199 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-03 04:38:30,199 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-03 04:38:30,200 INFO L87 Difference]: Start difference. First operand 39 states and 49 transitions. Second operand has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 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) [2021-11-03 04:38:30,346 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:38:30,346 INFO L93 Difference]: Finished difference Result 59 states and 75 transitions. [2021-11-03 04:38:30,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-03 04:38:30,347 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 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 [2021-11-03 04:38:30,347 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:38:30,349 INFO L225 Difference]: With dead ends: 59 [2021-11-03 04:38:30,349 INFO L226 Difference]: Without dead ends: 55 [2021-11-03 04:38:30,350 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-03 04:38:30,351 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2021-11-03 04:38:30,361 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 47. [2021-11-03 04:38:30,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47 states, 36 states have (on average 1.6666666666666667) internal successors, (60), 46 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:38:30,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 60 transitions. [2021-11-03 04:38:30,365 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 60 transitions. Word has length 5 [2021-11-03 04:38:30,366 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:38:30,366 INFO L470 AbstractCegarLoop]: Abstraction has 47 states and 60 transitions. [2021-11-03 04:38:30,366 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 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) [2021-11-03 04:38:30,367 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 60 transitions. [2021-11-03 04:38:30,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-11-03 04:38:30,368 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:38:30,369 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-11-03 04:38:30,369 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-03 04:38:30,369 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2021-11-03 04:38:30,371 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:38:30,372 INFO L85 PathProgramCache]: Analyzing trace with hash 29919517, now seen corresponding path program 1 times [2021-11-03 04:38:30,372 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-03 04:38:30,372 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1566211970] [2021-11-03 04:38:30,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:38:30,373 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 04:38:30,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:38:30,417 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:38:30,418 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-03 04:38:30,421 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1566211970] [2021-11-03 04:38:30,422 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1566211970] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-03 04:38:30,423 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:38:30,423 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-11-03 04:38:30,423 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [917280574] [2021-11-03 04:38:30,424 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-03 04:38:30,425 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-03 04:38:30,427 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-03 04:38:30,428 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 04:38:30,428 INFO L87 Difference]: Start difference. First operand 47 states and 60 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 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) [2021-11-03 04:38:30,455 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:38:30,455 INFO L93 Difference]: Finished difference Result 47 states and 60 transitions. [2021-11-03 04:38:30,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-03 04:38:30,456 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 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 [2021-11-03 04:38:30,456 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:38:30,458 INFO L225 Difference]: With dead ends: 47 [2021-11-03 04:38:30,458 INFO L226 Difference]: Without dead ends: 44 [2021-11-03 04:38:30,458 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 04:38:30,459 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2021-11-03 04:38:30,471 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 44. [2021-11-03 04:38:30,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44 states, 36 states have (on average 1.5555555555555556) internal successors, (56), 43 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:38:30,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 56 transitions. [2021-11-03 04:38:30,479 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 56 transitions. Word has length 5 [2021-11-03 04:38:30,480 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:38:30,480 INFO L470 AbstractCegarLoop]: Abstraction has 44 states and 56 transitions. [2021-11-03 04:38:30,480 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 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) [2021-11-03 04:38:30,480 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 56 transitions. [2021-11-03 04:38:30,481 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-11-03 04:38:30,482 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:38:30,483 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-11-03 04:38:30,483 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-03 04:38:30,485 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2021-11-03 04:38:30,486 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:38:30,486 INFO L85 PathProgramCache]: Analyzing trace with hash 925955982, now seen corresponding path program 1 times [2021-11-03 04:38:30,487 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-03 04:38:30,487 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [538102669] [2021-11-03 04:38:30,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:38:30,488 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 04:38:30,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:38:30,520 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:38:30,520 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-03 04:38:30,521 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [538102669] [2021-11-03 04:38:30,521 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [538102669] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-03 04:38:30,522 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:38:30,522 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-03 04:38:30,537 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2099018779] [2021-11-03 04:38:30,538 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-03 04:38:30,538 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-03 04:38:30,539 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-03 04:38:30,539 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 04:38:30,540 INFO L87 Difference]: Start difference. First operand 44 states and 56 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) [2021-11-03 04:38:30,585 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:38:30,586 INFO L93 Difference]: Finished difference Result 103 states and 135 transitions. [2021-11-03 04:38:30,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-03 04:38:30,594 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 [2021-11-03 04:38:30,594 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:38:30,596 INFO L225 Difference]: With dead ends: 103 [2021-11-03 04:38:30,596 INFO L226 Difference]: Without dead ends: 60 [2021-11-03 04:38:30,597 INFO L786 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 [2021-11-03 04:38:30,597 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2021-11-03 04:38:30,612 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 58. [2021-11-03 04:38:30,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58 states, 51 states have (on average 1.4509803921568627) internal successors, (74), 57 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:38:30,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 74 transitions. [2021-11-03 04:38:30,616 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 74 transitions. Word has length 6 [2021-11-03 04:38:30,616 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:38:30,616 INFO L470 AbstractCegarLoop]: Abstraction has 58 states and 74 transitions. [2021-11-03 04:38:30,617 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) [2021-11-03 04:38:30,617 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 74 transitions. [2021-11-03 04:38:30,618 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-11-03 04:38:30,618 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:38:30,618 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-11-03 04:38:30,619 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-03 04:38:30,620 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2021-11-03 04:38:30,622 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:38:30,622 INFO L85 PathProgramCache]: Analyzing trace with hash 925961940, now seen corresponding path program 1 times [2021-11-03 04:38:30,622 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-03 04:38:30,623 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [516145539] [2021-11-03 04:38:30,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:38:30,623 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 04:38:30,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:38:30,669 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:38:30,671 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-03 04:38:30,671 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [516145539] [2021-11-03 04:38:30,671 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [516145539] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-03 04:38:30,672 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:38:30,672 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-11-03 04:38:30,672 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [396378216] [2021-11-03 04:38:30,672 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-03 04:38:30,673 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-03 04:38:30,673 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-03 04:38:30,674 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 04:38:30,674 INFO L87 Difference]: Start difference. First operand 58 states and 74 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 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) [2021-11-03 04:38:30,703 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:38:30,703 INFO L93 Difference]: Finished difference Result 58 states and 74 transitions. [2021-11-03 04:38:30,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-03 04:38:30,704 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 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 [2021-11-03 04:38:30,704 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:38:30,707 INFO L225 Difference]: With dead ends: 58 [2021-11-03 04:38:30,707 INFO L226 Difference]: Without dead ends: 57 [2021-11-03 04:38:30,707 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 04:38:30,708 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2021-11-03 04:38:30,717 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 57. [2021-11-03 04:38:30,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57 states, 51 states have (on average 1.411764705882353) internal successors, (72), 56 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:38:30,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 72 transitions. [2021-11-03 04:38:30,723 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 72 transitions. Word has length 6 [2021-11-03 04:38:30,723 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:38:30,724 INFO L470 AbstractCegarLoop]: Abstraction has 57 states and 72 transitions. [2021-11-03 04:38:30,724 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 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) [2021-11-03 04:38:30,724 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 72 transitions. [2021-11-03 04:38:30,724 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-11-03 04:38:30,725 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:38:30,725 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-11-03 04:38:30,725 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-03 04:38:30,726 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2021-11-03 04:38:30,726 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:38:30,726 INFO L85 PathProgramCache]: Analyzing trace with hash 927505113, now seen corresponding path program 1 times [2021-11-03 04:38:30,727 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-03 04:38:30,727 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [40056438] [2021-11-03 04:38:30,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:38:30,727 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 04:38:30,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:38:30,760 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:38:30,761 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-03 04:38:30,761 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [40056438] [2021-11-03 04:38:30,761 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [40056438] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-03 04:38:30,762 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:38:30,763 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-11-03 04:38:30,767 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [367170029] [2021-11-03 04:38:30,768 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-03 04:38:30,768 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-03 04:38:30,769 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-03 04:38:30,769 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 04:38:30,769 INFO L87 Difference]: Start difference. First operand 57 states and 72 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 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) [2021-11-03 04:38:30,804 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:38:30,804 INFO L93 Difference]: Finished difference Result 66 states and 84 transitions. [2021-11-03 04:38:30,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-03 04:38:30,810 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 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 [2021-11-03 04:38:30,810 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:38:30,810 INFO L225 Difference]: With dead ends: 66 [2021-11-03 04:38:30,811 INFO L226 Difference]: Without dead ends: 65 [2021-11-03 04:38:30,811 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 04:38:30,811 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2021-11-03 04:38:30,816 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 57. [2021-11-03 04:38:30,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57 states, 51 states have (on average 1.411764705882353) internal successors, (72), 56 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:38:30,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 72 transitions. [2021-11-03 04:38:30,817 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 72 transitions. Word has length 6 [2021-11-03 04:38:30,817 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:38:30,817 INFO L470 AbstractCegarLoop]: Abstraction has 57 states and 72 transitions. [2021-11-03 04:38:30,817 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 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) [2021-11-03 04:38:30,818 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 72 transitions. [2021-11-03 04:38:30,818 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-11-03 04:38:30,818 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:38:30,818 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-11-03 04:38:30,818 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-03 04:38:30,819 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2021-11-03 04:38:30,819 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:38:30,819 INFO L85 PathProgramCache]: Analyzing trace with hash -1312112481, now seen corresponding path program 1 times [2021-11-03 04:38:30,819 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-03 04:38:30,820 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [831698177] [2021-11-03 04:38:30,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:38:30,820 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 04:38:30,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-03 04:38:30,848 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-03 04:38:30,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-03 04:38:30,872 INFO L133 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2021-11-03 04:38:30,872 INFO L627 BasicCegarLoop]: Counterexample is feasible [2021-11-03 04:38:30,873 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-11-03 04:38:30,875 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-11-03 04:38:30,875 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-11-03 04:38:30,875 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-11-03 04:38:30,876 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-11-03 04:38:30,876 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-11-03 04:38:30,876 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-11-03 04:38:30,877 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-11-03 04:38:30,877 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-11-03 04:38:30,877 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-11-03 04:38:30,877 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-11-03 04:38:30,878 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-11-03 04:38:30,878 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-03 04:38:30,882 INFO L731 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2021-11-03 04:38:30,885 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-03 04:38:30,898 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.11 04:38:30 BoogieIcfgContainer [2021-11-03 04:38:30,898 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-03 04:38:30,899 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-03 04:38:30,899 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-03 04:38:30,899 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-03 04:38:30,899 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 04:38:29" (3/4) ... [2021-11-03 04:38:30,901 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-11-03 04:38:30,943 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7c82792-8e3c-46bf-89c4-d056d17dc58d/bin/utaipan-aC7eJsxGYH/witness.graphml [2021-11-03 04:38:30,943 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-03 04:38:30,945 INFO L168 Benchmark]: Toolchain (without parser) took 1895.81 ms. Allocated memory was 104.9 MB in the beginning and 125.8 MB in the end (delta: 21.0 MB). Free memory was 63.6 MB in the beginning and 84.2 MB in the end (delta: -20.7 MB). Peak memory consumption was 274.8 kB. Max. memory is 16.1 GB. [2021-11-03 04:38:30,945 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 104.9 MB. Free memory is still 79.3 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-11-03 04:38:30,946 INFO L168 Benchmark]: CACSL2BoogieTranslator took 213.23 ms. Allocated memory is still 104.9 MB. Free memory was 63.3 MB in the beginning and 80.5 MB in the end (delta: -17.2 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-11-03 04:38:30,946 INFO L168 Benchmark]: Boogie Procedure Inliner took 36.70 ms. Allocated memory is still 104.9 MB. Free memory was 80.5 MB in the beginning and 79.2 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-11-03 04:38:30,947 INFO L168 Benchmark]: Boogie Preprocessor took 28.04 ms. Allocated memory is still 104.9 MB. Free memory was 79.2 MB in the beginning and 78.4 MB in the end (delta: 880.6 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-11-03 04:38:30,947 INFO L168 Benchmark]: RCFGBuilder took 258.80 ms. Allocated memory is still 104.9 MB. Free memory was 78.4 MB in the beginning and 68.3 MB in the end (delta: 10.0 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-11-03 04:38:30,948 INFO L168 Benchmark]: TraceAbstraction took 1305.15 ms. Allocated memory was 104.9 MB in the beginning and 125.8 MB in the end (delta: 21.0 MB). Free memory was 67.9 MB in the beginning and 86.3 MB in the end (delta: -18.4 MB). Peak memory consumption was 4.6 MB. Max. memory is 16.1 GB. [2021-11-03 04:38:30,948 INFO L168 Benchmark]: Witness Printer took 44.74 ms. Allocated memory is still 125.8 MB. Free memory was 86.3 MB in the beginning and 85.1 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-11-03 04:38:30,950 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 104.9 MB. Free memory is still 79.3 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 213.23 ms. Allocated memory is still 104.9 MB. Free memory was 63.3 MB in the beginning and 80.5 MB in the end (delta: -17.2 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 36.70 ms. Allocated memory is still 104.9 MB. Free memory was 80.5 MB in the beginning and 79.2 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 28.04 ms. Allocated memory is still 104.9 MB. Free memory was 79.2 MB in the beginning and 78.4 MB in the end (delta: 880.6 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 258.80 ms. Allocated memory is still 104.9 MB. Free memory was 78.4 MB in the beginning and 68.3 MB in the end (delta: 10.0 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 1305.15 ms. Allocated memory was 104.9 MB in the beginning and 125.8 MB in the end (delta: 21.0 MB). Free memory was 67.9 MB in the beginning and 86.3 MB in the end (delta: -18.4 MB). Peak memory consumption was 4.6 MB. Max. memory is 16.1 GB. * Witness Printer took 44.74 ms. Allocated memory is still 125.8 MB. Free memory was 86.3 MB in the beginning and 85.1 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 30]: integer overflow possible integer overflow possible We found a FailurePath: [L13] int a, b; [L14] a = __VERIFIER_nondet_int() [L15] b = __VERIFIER_nondet_int() [L16] COND TRUE a < 30 [L17] COND FALSE !(b < a) [L29] EXPR a + 2 [L29] a = a + 2 [L30] b - 10 - UnprovableResult [Line: 19]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 19]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 21]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 21]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 24]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 24]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 26]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 26]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 29]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 29]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 30]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 30 locations, 12 error locations. Started 1 CEGAR loops. OverallTime: 1.2s, OverallIterations: 7, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 101 SDtfs, 121 SDslu, 40 SDs, 0 SdLazy, 166 SolverSat, 41 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=58occurred in iteration=4, InterpolantAutomatonStates: 20, 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, 6 MinimizatonAttempts, 25 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 39 NumberOfCodeBlocks, 39 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 26 ConstructedInterpolants, 0 QuantifiedInterpolants, 86 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 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 incorrect! [2021-11-03 04:38:31,007 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7c82792-8e3c-46bf-89c4-d056d17dc58d/bin/utaipan-aC7eJsxGYH/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(OVERFLOW)