./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted/Cairo.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_2b3618ee-59d9-4163-8039-2a191b43c015/bin/uautomizer-j4sWxH34Be/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b3618ee-59d9-4163-8039-2a191b43c015/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_2b3618ee-59d9-4163-8039-2a191b43c015/bin/uautomizer-j4sWxH34Be/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b3618ee-59d9-4163-8039-2a191b43c015/bin/uautomizer-j4sWxH34Be/config/AutomizerReach.xml -i ../../sv-benchmarks/c/termination-crafted/Cairo.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b3618ee-59d9-4163-8039-2a191b43c015/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_2b3618ee-59d9-4163-8039-2a191b43c015/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 dea5ef24f0f7de819f347b3388a482de77217d2927aeb32fc1f275b172d84ce8 ........................................................................................................................................................................................................................................................................................................................................................................... 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 19:39:40,850 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-21 19:39:40,852 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-21 19:39:40,885 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-21 19:39:40,886 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-21 19:39:40,887 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-21 19:39:40,889 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-21 19:39:40,892 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-21 19:39:40,894 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-21 19:39:40,895 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-21 19:39:40,897 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-21 19:39:40,899 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-21 19:39:40,899 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-21 19:39:40,901 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-21 19:39:40,902 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-21 19:39:40,904 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-21 19:39:40,905 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-21 19:39:40,907 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-21 19:39:40,909 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-21 19:39:40,912 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-21 19:39:40,914 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-21 19:39:40,915 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-21 19:39:40,917 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-21 19:39:40,918 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-21 19:39:40,922 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-21 19:39:40,922 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-21 19:39:40,923 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-21 19:39:40,924 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-21 19:39:40,925 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-21 19:39:40,929 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-21 19:39:40,930 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-21 19:39:40,931 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-21 19:39:40,932 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-21 19:39:40,933 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-21 19:39:40,934 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-21 19:39:40,934 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-21 19:39:40,935 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-21 19:39:40,936 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-21 19:39:40,936 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-21 19:39:40,937 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-21 19:39:40,938 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-21 19:39:40,941 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b3618ee-59d9-4163-8039-2a191b43c015/bin/uautomizer-j4sWxH34Be/config/svcomp-Overflow-64bit-Automizer_Default.epf [2021-10-21 19:39:40,987 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-21 19:39:40,987 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-21 19:39:40,988 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-21 19:39:40,988 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-21 19:39:40,996 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-21 19:39:40,996 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-21 19:39:40,996 INFO L138 SettingsManager]: * Use SBE=true [2021-10-21 19:39:40,997 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-21 19:39:40,997 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-21 19:39:40,997 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-21 19:39:40,998 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-21 19:39:40,999 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-21 19:39:40,999 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-21 19:39:40,999 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-21 19:39:40,999 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2021-10-21 19:39:40,999 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-21 19:39:41,000 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-21 19:39:41,000 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-21 19:39:41,000 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-21 19:39:41,000 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-21 19:39:41,001 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-21 19:39:41,001 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-21 19:39:41,001 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-21 19:39:41,001 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-21 19:39:41,002 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-21 19:39:41,002 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-21 19:39:41,002 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-21 19:39:41,002 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-21 19:39:41,002 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-21 19:39:41,003 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_2b3618ee-59d9-4163-8039-2a191b43c015/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b3618ee-59d9-4163-8039-2a191b43c015/bin/uautomizer-j4sWxH34Be Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> dea5ef24f0f7de819f347b3388a482de77217d2927aeb32fc1f275b172d84ce8 [2021-10-21 19:39:41,329 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-21 19:39:41,350 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-21 19:39:41,352 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-21 19:39:41,353 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-21 19:39:41,354 INFO L275 PluginConnector]: CDTParser initialized [2021-10-21 19:39:41,355 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b3618ee-59d9-4163-8039-2a191b43c015/bin/uautomizer-j4sWxH34Be/../../sv-benchmarks/c/termination-crafted/Cairo.c [2021-10-21 19:39:41,415 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b3618ee-59d9-4163-8039-2a191b43c015/bin/uautomizer-j4sWxH34Be/data/073e9fe73/c16cc9c7cb534352b180958fc3fefc3d/FLAG190777943 [2021-10-21 19:39:41,978 INFO L306 CDTParser]: Found 1 translation units. [2021-10-21 19:39:41,978 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b3618ee-59d9-4163-8039-2a191b43c015/sv-benchmarks/c/termination-crafted/Cairo.c [2021-10-21 19:39:41,989 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b3618ee-59d9-4163-8039-2a191b43c015/bin/uautomizer-j4sWxH34Be/data/073e9fe73/c16cc9c7cb534352b180958fc3fefc3d/FLAG190777943 [2021-10-21 19:39:42,358 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b3618ee-59d9-4163-8039-2a191b43c015/bin/uautomizer-j4sWxH34Be/data/073e9fe73/c16cc9c7cb534352b180958fc3fefc3d [2021-10-21 19:39:42,361 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-21 19:39:42,363 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-21 19:39:42,377 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-21 19:39:42,377 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-21 19:39:42,381 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-21 19:39:42,381 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 07:39:42" (1/1) ... [2021-10-21 19:39:42,382 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6dbbff5d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:39:42, skipping insertion in model container [2021-10-21 19:39:42,383 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 07:39:42" (1/1) ... [2021-10-21 19:39:42,394 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-21 19:39:42,403 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-21 19:39:42,618 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-21 19:39:42,621 INFO L203 MainTranslator]: Completed pre-run [2021-10-21 19:39:42,642 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-21 19:39:42,659 INFO L208 MainTranslator]: Completed translation [2021-10-21 19:39:42,661 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:39:42 WrapperNode [2021-10-21 19:39:42,661 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-21 19:39:42,663 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-21 19:39:42,663 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-21 19:39:42,663 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-21 19:39:42,671 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:39:42" (1/1) ... [2021-10-21 19:39:42,677 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:39:42" (1/1) ... [2021-10-21 19:39:42,699 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-21 19:39:42,700 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-21 19:39:42,701 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-21 19:39:42,701 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-21 19:39:42,709 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:39:42" (1/1) ... [2021-10-21 19:39:42,709 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:39:42" (1/1) ... [2021-10-21 19:39:42,709 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:39:42" (1/1) ... [2021-10-21 19:39:42,710 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:39:42" (1/1) ... [2021-10-21 19:39:42,712 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:39:42" (1/1) ... [2021-10-21 19:39:42,717 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:39:42" (1/1) ... [2021-10-21 19:39:42,718 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:39:42" (1/1) ... [2021-10-21 19:39:42,719 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-21 19:39:42,720 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-21 19:39:42,720 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-21 19:39:42,721 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-21 19:39:42,722 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:39:42" (1/1) ... [2021-10-21 19:39:42,730 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-21 19:39:42,741 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b3618ee-59d9-4163-8039-2a191b43c015/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:39:42,758 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b3618ee-59d9-4163-8039-2a191b43c015/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-21 19:39:42,797 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b3618ee-59d9-4163-8039-2a191b43c015/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-21 19:39:42,822 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-21 19:39:42,824 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-21 19:39:42,987 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-21 19:39:42,989 INFO L299 CfgBuilder]: Removed 5 assume(true) statements. [2021-10-21 19:39:42,991 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 07:39:42 BoogieIcfgContainer [2021-10-21 19:39:42,992 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-21 19:39:42,995 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-21 19:39:42,995 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-21 19:39:43,000 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-21 19:39:43,001 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.10 07:39:42" (1/3) ... [2021-10-21 19:39:43,002 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ef1b927 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.10 07:39:43, skipping insertion in model container [2021-10-21 19:39:43,002 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:39:42" (2/3) ... [2021-10-21 19:39:43,003 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ef1b927 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.10 07:39:43, skipping insertion in model container [2021-10-21 19:39:43,003 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 07:39:42" (3/3) ... [2021-10-21 19:39:43,004 INFO L111 eAbstractionObserver]: Analyzing ICFG Cairo.c [2021-10-21 19:39:43,010 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-21 19:39:43,011 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2021-10-21 19:39:43,071 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-21 19:39:43,081 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 19:39:43,081 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-10-21 19:39:43,098 INFO L276 IsEmpty]: Start isEmpty. Operand has 11 states, 8 states have (on average 1.625) internal successors, (13), 10 states have internal predecessors, (13), 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 19:39:43,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-10-21 19:39:43,104 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:39:43,105 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2021-10-21 19:39:43,105 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2021-10-21 19:39:43,112 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:39:43,113 INFO L82 PathProgramCache]: Analyzing trace with hash 957573, now seen corresponding path program 1 times [2021-10-21 19:39:43,123 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:39:43,124 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1048332526] [2021-10-21 19:39:43,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:39:43,125 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:39:43,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:39:43,298 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 19:39:43,299 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:39:43,299 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1048332526] [2021-10-21 19:39:43,300 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1048332526] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 19:39:43,300 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:39:43,301 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-10-21 19:39:43,303 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [287661916] [2021-10-21 19:39:43,311 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-21 19:39:43,312 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:39:43,326 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-21 19:39:43,327 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 19:39:43,329 INFO L87 Difference]: Start difference. First operand has 11 states, 8 states have (on average 1.625) internal successors, (13), 10 states have internal predecessors, (13), 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), 2 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) [2021-10-21 19:39:43,389 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:39:43,389 INFO L93 Difference]: Finished difference Result 15 states and 16 transitions. [2021-10-21 19:39:43,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-21 19:39:43,391 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 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 [2021-10-21 19:39:43,391 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:39:43,399 INFO L225 Difference]: With dead ends: 15 [2021-10-21 19:39:43,413 INFO L226 Difference]: Without dead ends: 6 [2021-10-21 19:39:43,415 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 23.9ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 19:39:43,447 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6 states. [2021-10-21 19:39:43,457 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6 to 6. [2021-10-21 19:39:43,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6 states, 5 states have (on average 1.2) internal successors, (6), 5 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 19:39:43,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 6 transitions. [2021-10-21 19:39:43,466 INFO L78 Accepts]: Start accepts. Automaton has 6 states and 6 transitions. Word has length 4 [2021-10-21 19:39:43,467 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:39:43,481 INFO L470 AbstractCegarLoop]: Abstraction has 6 states and 6 transitions. [2021-10-21 19:39:43,481 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 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) [2021-10-21 19:39:43,481 INFO L276 IsEmpty]: Start isEmpty. Operand 6 states and 6 transitions. [2021-10-21 19:39:43,482 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-10-21 19:39:43,482 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:39:43,482 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-10-21 19:39:43,483 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-21 19:39:43,483 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2021-10-21 19:39:43,484 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:39:43,484 INFO L82 PathProgramCache]: Analyzing trace with hash 29684810, now seen corresponding path program 1 times [2021-10-21 19:39:43,484 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:39:43,485 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1441672033] [2021-10-21 19:39:43,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:39:43,485 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:39:43,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:39:43,529 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 19:39:43,529 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:39:43,530 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1441672033] [2021-10-21 19:39:43,530 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1441672033] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 19:39:43,530 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:39:43,531 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-21 19:39:43,531 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1523622003] [2021-10-21 19:39:43,532 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-21 19:39:43,532 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:39:43,533 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-21 19:39:43,533 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 19:39:43,534 INFO L87 Difference]: Start difference. First operand 6 states and 6 transitions. 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 19:39:43,552 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:39:43,553 INFO L93 Difference]: Finished difference Result 10 states and 10 transitions. [2021-10-21 19:39:43,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-21 19:39:43,556 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 19:39:43,557 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:39:43,557 INFO L225 Difference]: With dead ends: 10 [2021-10-21 19:39:43,557 INFO L226 Difference]: Without dead ends: 9 [2021-10-21 19:39:43,558 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.1ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 19:39:43,559 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2021-10-21 19:39:43,561 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2021-10-21 19:39:43,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 8 states have (on average 1.125) internal successors, (9), 8 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 19:39:43,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2021-10-21 19:39:43,563 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 5 [2021-10-21 19:39:43,563 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:39:43,564 INFO L470 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2021-10-21 19:39:43,565 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 19:39:43,565 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2021-10-21 19:39:43,566 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-10-21 19:39:43,566 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:39:43,566 INFO L512 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1] [2021-10-21 19:39:43,567 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-21 19:39:43,568 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2021-10-21 19:39:43,569 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:39:43,574 INFO L82 PathProgramCache]: Analyzing trace with hash -423045501, now seen corresponding path program 1 times [2021-10-21 19:39:43,574 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:39:43,575 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1480075706] [2021-10-21 19:39:43,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:39:43,576 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:39:43,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:39:43,643 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:39:43,644 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:39:43,644 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1480075706] [2021-10-21 19:39:43,647 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1480075706] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:39:43,647 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [362648475] [2021-10-21 19:39:43,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:39:43,648 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 19:39:43,648 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b3618ee-59d9-4163-8039-2a191b43c015/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:39:43,651 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b3618ee-59d9-4163-8039-2a191b43c015/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 19:39:43,675 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b3618ee-59d9-4163-8039-2a191b43c015/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-10-21 19:39:43,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:39:43,702 INFO L263 TraceCheckSpWp]: Trace formula consists of 15 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-21 19:39:43,706 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:39:43,788 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:39:43,790 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [362648475] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:39:43,790 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-21 19:39:43,791 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 3 [2021-10-21 19:39:43,791 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [481925796] [2021-10-21 19:39:43,792 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-21 19:39:43,798 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:39:43,800 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-21 19:39:43,800 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-21 19:39:43,801 INFO L87 Difference]: Start difference. First operand 9 states and 9 transitions. Second operand has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:39:43,817 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:39:43,817 INFO L93 Difference]: Finished difference Result 9 states and 9 transitions. [2021-10-21 19:39:43,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-21 19:39:43,818 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2021-10-21 19:39:43,819 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:39:43,819 INFO L225 Difference]: With dead ends: 9 [2021-10-21 19:39:43,819 INFO L226 Difference]: Without dead ends: 0 [2021-10-21 19:39:43,820 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 25.2ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-21 19:39:43,820 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-21 19:39:43,820 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-21 19:39:43,821 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 19:39:43,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-21 19:39:43,821 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 8 [2021-10-21 19:39:43,821 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:39:43,822 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-21 19:39:43,822 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:39:43,823 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-21 19:39:43,823 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-21 19:39:43,825 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-21 19:39:43,826 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-21 19:39:43,866 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b3618ee-59d9-4163-8039-2a191b43c015/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-10-21 19:39:44,049 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b3618ee-59d9-4163-8039-2a191b43c015/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 19:39:44,051 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-10-21 19:39:44,054 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-21 19:39:44,057 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-21 19:39:44,089 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 22) no Hoare annotation was computed. [2021-10-21 19:39:44,089 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-10-21 19:39:44,090 INFO L853 garLoopResultBuilder]: At program point L25(lines 16 26) the Hoare annotation is: (<= ULTIMATE.start_main_~x~0 2147483647) [2021-10-21 19:39:44,090 INFO L853 garLoopResultBuilder]: At program point L21-2(lines 21 23) the Hoare annotation is: (and (<= 0 ULTIMATE.start_main_~x~0) (<= ULTIMATE.start_main_~x~0 2147483647)) [2021-10-21 19:39:44,090 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 22) no Hoare annotation was computed. [2021-10-21 19:39:44,090 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-10-21 19:39:44,091 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-10-21 19:39:44,091 INFO L857 garLoopResultBuilder]: For program point L22(line 22) no Hoare annotation was computed. [2021-10-21 19:39:44,091 INFO L857 garLoopResultBuilder]: For program point L22-1(line 22) no Hoare annotation was computed. [2021-10-21 19:39:44,091 INFO L857 garLoopResultBuilder]: For program point L20(lines 20 24) no Hoare annotation was computed. [2021-10-21 19:39:44,091 INFO L857 garLoopResultBuilder]: For program point L20-1(lines 20 24) no Hoare annotation was computed. [2021-10-21 19:39:44,096 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-21 19:39:44,109 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.10 07:39:44 BoogieIcfgContainer [2021-10-21 19:39:44,109 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-21 19:39:44,110 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-21 19:39:44,110 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-21 19:39:44,110 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-21 19:39:44,110 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 07:39:42" (3/4) ... [2021-10-21 19:39:44,113 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-21 19:39:44,123 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2021-10-21 19:39:44,123 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-10-21 19:39:44,153 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b3618ee-59d9-4163-8039-2a191b43c015/bin/uautomizer-j4sWxH34Be/witness.graphml [2021-10-21 19:39:44,154 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-21 19:39:44,155 INFO L168 Benchmark]: Toolchain (without parser) took 1791.50 ms. Allocated memory was 94.4 MB in the beginning and 113.2 MB in the end (delta: 18.9 MB). Free memory was 56.1 MB in the beginning and 88.4 MB in the end (delta: -32.3 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-21 19:39:44,156 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 94.4 MB. Free memory is still 72.5 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-21 19:39:44,156 INFO L168 Benchmark]: CACSL2BoogieTranslator took 284.37 ms. Allocated memory is still 94.4 MB. Free memory was 55.9 MB in the beginning and 72.3 MB in the end (delta: -16.3 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-21 19:39:44,157 INFO L168 Benchmark]: Boogie Procedure Inliner took 36.52 ms. Allocated memory is still 94.4 MB. Free memory was 72.3 MB in the beginning and 71.0 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-21 19:39:44,157 INFO L168 Benchmark]: Boogie Preprocessor took 19.19 ms. Allocated memory is still 94.4 MB. Free memory was 71.0 MB in the beginning and 70.1 MB in the end (delta: 814.4 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-21 19:39:44,158 INFO L168 Benchmark]: RCFGBuilder took 271.85 ms. Allocated memory is still 94.4 MB. Free memory was 70.1 MB in the beginning and 62.1 MB in the end (delta: 8.1 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-21 19:39:44,158 INFO L168 Benchmark]: TraceAbstraction took 1113.83 ms. Allocated memory was 94.4 MB in the beginning and 113.2 MB in the end (delta: 18.9 MB). Free memory was 61.5 MB in the beginning and 90.5 MB in the end (delta: -29.0 MB). Peak memory consumption was 35.3 MB. Max. memory is 16.1 GB. [2021-10-21 19:39:44,159 INFO L168 Benchmark]: Witness Printer took 44.15 ms. Allocated memory is still 113.2 MB. Free memory was 90.5 MB in the beginning and 88.4 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-21 19:39:44,161 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 94.4 MB. Free memory is still 72.5 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 284.37 ms. Allocated memory is still 94.4 MB. Free memory was 55.9 MB in the beginning and 72.3 MB in the end (delta: -16.3 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 36.52 ms. Allocated memory is still 94.4 MB. Free memory was 72.3 MB in the beginning and 71.0 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 19.19 ms. Allocated memory is still 94.4 MB. Free memory was 71.0 MB in the beginning and 70.1 MB in the end (delta: 814.4 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 271.85 ms. Allocated memory is still 94.4 MB. Free memory was 70.1 MB in the beginning and 62.1 MB in the end (delta: 8.1 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * TraceAbstraction took 1113.83 ms. Allocated memory was 94.4 MB in the beginning and 113.2 MB in the end (delta: 18.9 MB). Free memory was 61.5 MB in the beginning and 90.5 MB in the end (delta: -29.0 MB). Peak memory consumption was 35.3 MB. Max. memory is 16.1 GB. * Witness Printer took 44.15 ms. Allocated memory is still 113.2 MB. Free memory was 90.5 MB in the beginning and 88.4 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: 22]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 22]: 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, 11 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 1028.5ms, OverallIterations: 3, TraceHistogramMax: 2, EmptinessCheckTime: 11.9ms, AutomataDifference: 150.3ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 39.1ms, InitialAbstractionConstructionTime: 12.1ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 9 SDtfs, 7 SDslu, 0 SDs, 0 SdLazy, 21 SolverSat, 3 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 45.1ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 13 GetRequests, 8 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 52.3ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=11occurred in iteration=0, InterpolantAutomatonStates: 10, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 25.6ms AutomataMinimizationTime, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0ms HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 4 NumberOfFragments, 10 HoareAnnotationTreeSize, 2 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 8.6ms HoareSimplificationTime, 2 FomulaSimplificationsInter, 8 FormulaSimplificationTreeSizeReductionInter, 13.4ms HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 9.5ms SsaConstructionTime, 36.0ms SatisfiabilityAnalysisTime, 261.8ms InterpolantComputationTime, 25 NumberOfCodeBlocks, 25 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 21 ConstructedInterpolants, 0 QuantifiedInterpolants, 57 SizeOfPredicates, 0 NumberOfNonLiveVariables, 15 ConjunctsInSsa, 3 ConjunctsInUnsatCore, 4 InterpolantComputations, 2 PerfectInterpolantSequences, 0/6 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 2 specifications checked. All of them hold - InvariantResult [Line: 16]: Loop Invariant Derived loop invariant: x <= 2147483647 - InvariantResult [Line: 21]: Loop Invariant Derived loop invariant: 0 <= x && x <= 2147483647 RESULT: Ultimate proved your program to be correct! [2021-10-21 19:39:44,209 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b3618ee-59d9-4163-8039-2a191b43c015/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...