./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted/Cairo_nondet.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_408e2cfa-e2af-441c-9449-d766d269642d/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_408e2cfa-e2af-441c-9449-d766d269642d/bin/uautomizer-uyxdKDjOR8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_408e2cfa-e2af-441c-9449-d766d269642d/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_408e2cfa-e2af-441c-9449-d766d269642d/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/termination-crafted/Cairo_nondet.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_408e2cfa-e2af-441c-9449-d766d269642d/bin/uautomizer-uyxdKDjOR8/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_408e2cfa-e2af-441c-9449-d766d269642d/bin/uautomizer-uyxdKDjOR8 --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 7291a806fc1bc00c479528361766aa99fd25186e73036697f4b6a2299ee60d16 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-2329fc7 [2022-12-13 13:48:08,268 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 13:48:08,270 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 13:48:08,289 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 13:48:08,289 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 13:48:08,290 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 13:48:08,291 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 13:48:08,293 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 13:48:08,294 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 13:48:08,295 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 13:48:08,296 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 13:48:08,297 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 13:48:08,297 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 13:48:08,298 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 13:48:08,299 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 13:48:08,301 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 13:48:08,301 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 13:48:08,302 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 13:48:08,304 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 13:48:08,306 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 13:48:08,307 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 13:48:08,308 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 13:48:08,310 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 13:48:08,310 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 13:48:08,314 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 13:48:08,314 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 13:48:08,314 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 13:48:08,315 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 13:48:08,316 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 13:48:08,317 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 13:48:08,318 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 13:48:08,318 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 13:48:08,319 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 13:48:08,320 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 13:48:08,321 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 13:48:08,321 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 13:48:08,321 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 13:48:08,322 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 13:48:08,322 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 13:48:08,323 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 13:48:08,323 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 13:48:08,324 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_408e2cfa-e2af-441c-9449-d766d269642d/bin/uautomizer-uyxdKDjOR8/config/svcomp-Overflow-64bit-Automizer_Default.epf [2022-12-13 13:48:08,345 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 13:48:08,345 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 13:48:08,346 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 13:48:08,346 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 13:48:08,346 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 13:48:08,347 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 13:48:08,347 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 13:48:08,347 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 13:48:08,348 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 13:48:08,348 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 13:48:08,348 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-13 13:48:08,348 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 13:48:08,348 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 13:48:08,348 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 13:48:08,349 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 13:48:08,349 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 13:48:08,349 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-12-13 13:48:08,349 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 13:48:08,349 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 13:48:08,349 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 13:48:08,350 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 13:48:08,350 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 13:48:08,350 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 13:48:08,350 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 13:48:08,350 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 13:48:08,350 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 13:48:08,351 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 13:48:08,351 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 13:48:08,351 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 13:48:08,351 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 13:48:08,351 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 13:48:08,351 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 13:48:08,351 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 13:48:08,352 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 13:48:08,352 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_408e2cfa-e2af-441c-9449-d766d269642d/bin/uautomizer-uyxdKDjOR8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_408e2cfa-e2af-441c-9449-d766d269642d/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7291a806fc1bc00c479528361766aa99fd25186e73036697f4b6a2299ee60d16 [2022-12-13 13:48:08,523 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 13:48:08,540 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 13:48:08,542 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 13:48:08,543 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 13:48:08,543 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 13:48:08,544 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_408e2cfa-e2af-441c-9449-d766d269642d/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/termination-crafted/Cairo_nondet.c [2022-12-13 13:48:11,141 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 13:48:11,293 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 13:48:11,293 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_408e2cfa-e2af-441c-9449-d766d269642d/sv-benchmarks/c/termination-crafted/Cairo_nondet.c [2022-12-13 13:48:11,297 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_408e2cfa-e2af-441c-9449-d766d269642d/bin/uautomizer-uyxdKDjOR8/data/4f0794ca2/f7c547aba5aa43fc900070617e2bdd22/FLAGbc37419a0 [2022-12-13 13:48:11,715 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_408e2cfa-e2af-441c-9449-d766d269642d/bin/uautomizer-uyxdKDjOR8/data/4f0794ca2/f7c547aba5aa43fc900070617e2bdd22 [2022-12-13 13:48:11,717 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 13:48:11,718 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 13:48:11,719 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 13:48:11,719 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 13:48:11,722 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 13:48:11,722 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 01:48:11" (1/1) ... [2022-12-13 13:48:11,723 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3e00aece and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:48:11, skipping insertion in model container [2022-12-13 13:48:11,723 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 01:48:11" (1/1) ... [2022-12-13 13:48:11,728 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 13:48:11,738 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 13:48:11,841 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 13:48:11,846 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 13:48:11,854 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 13:48:11,863 INFO L208 MainTranslator]: Completed translation [2022-12-13 13:48:11,864 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:48:11 WrapperNode [2022-12-13 13:48:11,864 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 13:48:11,865 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 13:48:11,865 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 13:48:11,865 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 13:48:11,870 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:48:11" (1/1) ... [2022-12-13 13:48:11,873 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:48:11" (1/1) ... [2022-12-13 13:48:11,885 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 19 [2022-12-13 13:48:11,885 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 13:48:11,886 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 13:48:11,886 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 13:48:11,886 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 13:48:11,892 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:48:11" (1/1) ... [2022-12-13 13:48:11,892 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:48:11" (1/1) ... [2022-12-13 13:48:11,892 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:48:11" (1/1) ... [2022-12-13 13:48:11,893 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:48:11" (1/1) ... [2022-12-13 13:48:11,894 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:48:11" (1/1) ... [2022-12-13 13:48:11,897 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:48:11" (1/1) ... [2022-12-13 13:48:11,898 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:48:11" (1/1) ... [2022-12-13 13:48:11,899 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:48:11" (1/1) ... [2022-12-13 13:48:11,900 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 13:48:11,900 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 13:48:11,901 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 13:48:11,901 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 13:48:11,902 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:48:11" (1/1) ... [2022-12-13 13:48:11,907 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 13:48:11,917 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_408e2cfa-e2af-441c-9449-d766d269642d/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 13:48:11,927 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_408e2cfa-e2af-441c-9449-d766d269642d/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 13:48:11,929 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_408e2cfa-e2af-441c-9449-d766d269642d/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 13:48:11,961 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 13:48:11,961 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 13:48:12,017 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 13:48:12,019 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 13:48:12,066 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 13:48:12,071 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 13:48:12,071 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-12-13 13:48:12,072 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 01:48:12 BoogieIcfgContainer [2022-12-13 13:48:12,073 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 13:48:12,074 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 13:48:12,074 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 13:48:12,077 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 13:48:12,077 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 01:48:11" (1/3) ... [2022-12-13 13:48:12,078 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@23e8e4dd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 01:48:12, skipping insertion in model container [2022-12-13 13:48:12,078 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:48:11" (2/3) ... [2022-12-13 13:48:12,078 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@23e8e4dd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 01:48:12, skipping insertion in model container [2022-12-13 13:48:12,078 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 01:48:12" (3/3) ... [2022-12-13 13:48:12,079 INFO L112 eAbstractionObserver]: Analyzing ICFG Cairo_nondet.c [2022-12-13 13:48:12,094 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 13:48:12,094 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-12-13 13:48:12,130 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 13:48:12,135 INFO L357 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=PETRI_NET, 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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@1bcef5d1, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 13:48:12,135 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-12-13 13:48:12,138 INFO L276 IsEmpty]: Start isEmpty. Operand has 12 states, 9 states have (on average 1.5555555555555556) internal successors, (14), 11 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:48:12,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-12-13 13:48:12,143 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 13:48:12,144 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-12-13 13:48:12,144 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-12-13 13:48:12,148 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:48:12,148 INFO L85 PathProgramCache]: Analyzing trace with hash 28693987, now seen corresponding path program 1 times [2022-12-13 13:48:12,155 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:48:12,155 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [598428875] [2022-12-13 13:48:12,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:48:12,156 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:48:12,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:48:12,280 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 13:48:12,280 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 13:48:12,281 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [598428875] [2022-12-13 13:48:12,281 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [598428875] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 13:48:12,282 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 13:48:12,282 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 13:48:12,283 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1665598977] [2022-12-13 13:48:12,284 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 13:48:12,288 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 13:48:12,288 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 13:48:12,309 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 13:48:12,310 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-13 13:48:12,312 INFO L87 Difference]: Start difference. First operand has 12 states, 9 states have (on average 1.5555555555555556) internal successors, (14), 11 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) 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) [2022-12-13 13:48:12,355 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 13:48:12,356 INFO L93 Difference]: Finished difference Result 23 states and 25 transitions. [2022-12-13 13:48:12,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 13:48:12,358 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 [2022-12-13 13:48:12,358 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 13:48:12,364 INFO L225 Difference]: With dead ends: 23 [2022-12-13 13:48:12,365 INFO L226 Difference]: Without dead ends: 10 [2022-12-13 13:48:12,367 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-13 13:48:12,369 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 6 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 21 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 13:48:12,370 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 21 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 13:48:12,383 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states. [2022-12-13 13:48:12,391 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 10. [2022-12-13 13:48:12,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10 states, 8 states have (on average 1.25) internal successors, (10), 9 states have internal predecessors, (10), 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) [2022-12-13 13:48:12,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 10 transitions. [2022-12-13 13:48:12,394 INFO L78 Accepts]: Start accepts. Automaton has 10 states and 10 transitions. Word has length 5 [2022-12-13 13:48:12,394 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 13:48:12,394 INFO L495 AbstractCegarLoop]: Abstraction has 10 states and 10 transitions. [2022-12-13 13:48:12,394 INFO L496 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) [2022-12-13 13:48:12,394 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 10 transitions. [2022-12-13 13:48:12,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-12-13 13:48:12,395 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 13:48:12,395 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-12-13 13:48:12,395 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-13 13:48:12,395 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-12-13 13:48:12,396 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:48:12,396 INFO L85 PathProgramCache]: Analyzing trace with hash 889513645, now seen corresponding path program 1 times [2022-12-13 13:48:12,396 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:48:12,396 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1318687433] [2022-12-13 13:48:12,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:48:12,397 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:48:12,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:48:12,421 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 13:48:12,421 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 13:48:12,422 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1318687433] [2022-12-13 13:48:12,422 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1318687433] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 13:48:12,422 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 13:48:12,422 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 13:48:12,422 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [414933148] [2022-12-13 13:48:12,423 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 13:48:12,424 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 13:48:12,426 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 13:48:12,426 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 13:48:12,427 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 13:48:12,427 INFO L87 Difference]: Start difference. First operand 10 states and 10 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) [2022-12-13 13:48:12,437 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 13:48:12,438 INFO L93 Difference]: Finished difference Result 10 states and 10 transitions. [2022-12-13 13:48:12,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 13:48:12,438 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 [2022-12-13 13:48:12,438 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 13:48:12,438 INFO L225 Difference]: With dead ends: 10 [2022-12-13 13:48:12,439 INFO L226 Difference]: Without dead ends: 9 [2022-12-13 13:48:12,439 INFO L412 NwaCegarLoop]: 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 [2022-12-13 13:48:12,440 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 1 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 3 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 13:48:12,440 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 3 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 13:48:12,441 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2022-12-13 13:48:12,442 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2022-12-13 13:48:12,443 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) [2022-12-13 13:48:12,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2022-12-13 13:48:12,443 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 6 [2022-12-13 13:48:12,443 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 13:48:12,443 INFO L495 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2022-12-13 13:48:12,443 INFO L496 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) [2022-12-13 13:48:12,444 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2022-12-13 13:48:12,444 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-12-13 13:48:12,444 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 13:48:12,444 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2022-12-13 13:48:12,444 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-13 13:48:12,444 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-12-13 13:48:12,445 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:48:12,445 INFO L85 PathProgramCache]: Analyzing trace with hash 124122351, now seen corresponding path program 1 times [2022-12-13 13:48:12,445 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:48:12,445 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1983146805] [2022-12-13 13:48:12,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:48:12,445 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:48:12,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 13:48:12,453 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 13:48:12,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 13:48:12,469 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 13:48:12,469 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-13 13:48:12,470 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2022-12-13 13:48:12,471 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2022-12-13 13:48:12,472 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-13 13:48:12,474 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2022-12-13 13:48:12,477 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-13 13:48:12,489 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.12 01:48:12 BoogieIcfgContainer [2022-12-13 13:48:12,489 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-13 13:48:12,490 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-13 13:48:12,490 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-13 13:48:12,490 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-13 13:48:12,490 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 01:48:12" (3/4) ... [2022-12-13 13:48:12,492 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-12-13 13:48:12,513 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_408e2cfa-e2af-441c-9449-d766d269642d/bin/uautomizer-uyxdKDjOR8/witness.graphml [2022-12-13 13:48:12,513 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-13 13:48:12,514 INFO L158 Benchmark]: Toolchain (without parser) took 795.38ms. Allocated memory is still 148.9MB. Free memory was 114.5MB in the beginning and 63.7MB in the end (delta: 50.8MB). Peak memory consumption was 50.3MB. Max. memory is 16.1GB. [2022-12-13 13:48:12,514 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 148.9MB. Free memory is still 120.3MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 13:48:12,514 INFO L158 Benchmark]: CACSL2BoogieTranslator took 145.23ms. Allocated memory is still 148.9MB. Free memory was 114.5MB in the beginning and 105.5MB in the end (delta: 9.0MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2022-12-13 13:48:12,515 INFO L158 Benchmark]: Boogie Procedure Inliner took 20.51ms. Allocated memory is still 148.9MB. Free memory was 105.0MB in the beginning and 104.1MB in the end (delta: 983.1kB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-12-13 13:48:12,515 INFO L158 Benchmark]: Boogie Preprocessor took 14.22ms. Allocated memory is still 148.9MB. Free memory was 104.1MB in the beginning and 103.0MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 13:48:12,515 INFO L158 Benchmark]: RCFGBuilder took 172.25ms. Allocated memory is still 148.9MB. Free memory was 103.0MB in the beginning and 94.1MB in the end (delta: 8.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-12-13 13:48:12,515 INFO L158 Benchmark]: TraceAbstraction took 414.82ms. Allocated memory is still 148.9MB. Free memory was 93.6MB in the beginning and 65.3MB in the end (delta: 28.3MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. [2022-12-13 13:48:12,516 INFO L158 Benchmark]: Witness Printer took 23.66ms. Allocated memory is still 148.9MB. Free memory was 65.3MB in the beginning and 63.7MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 13:48:12,517 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 148.9MB. Free memory is still 120.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 145.23ms. Allocated memory is still 148.9MB. Free memory was 114.5MB in the beginning and 105.5MB in the end (delta: 9.0MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 20.51ms. Allocated memory is still 148.9MB. Free memory was 105.0MB in the beginning and 104.1MB in the end (delta: 983.1kB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 14.22ms. Allocated memory is still 148.9MB. Free memory was 104.1MB in the beginning and 103.0MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 172.25ms. Allocated memory is still 148.9MB. Free memory was 103.0MB in the beginning and 94.1MB in the end (delta: 8.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 414.82ms. Allocated memory is still 148.9MB. Free memory was 93.6MB in the beginning and 65.3MB in the end (delta: 28.3MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. * Witness Printer took 23.66ms. Allocated memory is still 148.9MB. Free memory was 65.3MB in the beginning and 63.7MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * 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: 17]: integer overflow possible integer overflow possible We found a FailurePath: [L13] int x; [L14] x = __VERIFIER_nondet_int() [L15] COND TRUE x > __VERIFIER_nondet_int() [L16] COND TRUE x != 0 VAL [x=-2147483647] [L17] EXPR x - 1 [L17] x = x - 1 VAL [x=-2147483648] [L16] COND TRUE x != 0 VAL [x=-2147483648] [L17] x - 1 VAL [x=-2147483648] - UnprovableResult [Line: 17]: 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, 12 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.4s, OverallIterations: 3, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 7 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 7 mSDsluCounter, 24 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 13 mSDsCounter, 3 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 24 IncrementalHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 3 mSolverCounterUnsat, 11 mSDtfsCounter, 24 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=12occurred in iteration=0, InterpolantAutomatonStates: 7, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 19 NumberOfCodeBlocks, 19 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 9 ConstructedInterpolants, 0 QuantifiedInterpolants, 29 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 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! [2022-12-13 13:48:12,533 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_408e2cfa-e2af-441c-9449-d766d269642d/bin/uautomizer-uyxdKDjOR8/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)