./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-numeric/Avg_true.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version b5237d83 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9afd2ab-40d3-4f11-a1fe-5066355a896e/bin/uautomizer-vX5HgA9Q3a/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9afd2ab-40d3-4f11-a1fe-5066355a896e/bin/uautomizer-vX5HgA9Q3a/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9afd2ab-40d3-4f11-a1fe-5066355a896e/bin/uautomizer-vX5HgA9Q3a/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9afd2ab-40d3-4f11-a1fe-5066355a896e/bin/uautomizer-vX5HgA9Q3a/config/AutomizerReach.xml -i ../../sv-benchmarks/c/termination-numeric/Avg_true.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9afd2ab-40d3-4f11-a1fe-5066355a896e/bin/uautomizer-vX5HgA9Q3a/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9afd2ab-40d3-4f11-a1fe-5066355a896e/bin/uautomizer-vX5HgA9Q3a --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 837587d23f4a6a47f82602bd261c9627289288764c03b11ed0b39f6a977da8dd --- 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-b5237d8 [2022-11-21 14:01:29,831 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-21 14:01:29,834 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-21 14:01:29,861 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-21 14:01:29,861 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-21 14:01:29,862 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-21 14:01:29,867 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-21 14:01:29,869 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-21 14:01:29,870 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-21 14:01:29,872 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-21 14:01:29,873 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-21 14:01:29,875 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-21 14:01:29,875 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-21 14:01:29,877 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-21 14:01:29,878 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-21 14:01:29,879 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-21 14:01:29,881 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-21 14:01:29,882 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-21 14:01:29,884 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-21 14:01:29,886 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-21 14:01:29,888 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-21 14:01:29,898 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-21 14:01:29,900 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-21 14:01:29,901 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-21 14:01:29,906 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-21 14:01:29,911 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-21 14:01:29,912 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-21 14:01:29,913 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-21 14:01:29,913 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-21 14:01:29,914 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-21 14:01:29,917 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-21 14:01:29,918 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-21 14:01:29,920 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-21 14:01:29,921 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-21 14:01:29,923 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-21 14:01:29,924 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-21 14:01:29,925 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-21 14:01:29,925 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-21 14:01:29,926 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-21 14:01:29,927 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-21 14:01:29,928 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-21 14:01:29,929 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9afd2ab-40d3-4f11-a1fe-5066355a896e/bin/uautomizer-vX5HgA9Q3a/config/svcomp-Overflow-64bit-Automizer_Default.epf [2022-11-21 14:01:29,951 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-21 14:01:29,951 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-21 14:01:29,952 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-21 14:01:29,952 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-21 14:01:29,953 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-21 14:01:29,953 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-21 14:01:29,954 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-21 14:01:29,954 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-21 14:01:29,954 INFO L138 SettingsManager]: * Use SBE=true [2022-11-21 14:01:29,954 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-21 14:01:29,955 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-21 14:01:29,955 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-21 14:01:29,955 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-21 14:01:29,955 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-21 14:01:29,955 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-21 14:01:29,956 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-21 14:01:29,956 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-21 14:01:29,956 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-21 14:01:29,956 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-21 14:01:29,957 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-21 14:01:29,957 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-21 14:01:29,957 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-21 14:01:29,957 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-21 14:01:29,957 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-21 14:01:29,958 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-21 14:01:29,958 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-21 14:01:29,958 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-21 14:01:29,958 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-21 14:01:29,958 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-21 14:01:29,959 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-21 14:01:29,959 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-21 14:01:29,959 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-21 14:01:29,959 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_d9afd2ab-40d3-4f11-a1fe-5066355a896e/bin/uautomizer-vX5HgA9Q3a/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9afd2ab-40d3-4f11-a1fe-5066355a896e/bin/uautomizer-vX5HgA9Q3a Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 837587d23f4a6a47f82602bd261c9627289288764c03b11ed0b39f6a977da8dd [2022-11-21 14:01:30,250 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-21 14:01:30,273 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-21 14:01:30,276 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-21 14:01:30,277 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-21 14:01:30,278 INFO L275 PluginConnector]: CDTParser initialized [2022-11-21 14:01:30,279 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9afd2ab-40d3-4f11-a1fe-5066355a896e/bin/uautomizer-vX5HgA9Q3a/../../sv-benchmarks/c/termination-numeric/Avg_true.c [2022-11-21 14:01:33,337 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-21 14:01:33,605 INFO L351 CDTParser]: Found 1 translation units. [2022-11-21 14:01:33,605 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9afd2ab-40d3-4f11-a1fe-5066355a896e/sv-benchmarks/c/termination-numeric/Avg_true.c [2022-11-21 14:01:33,611 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9afd2ab-40d3-4f11-a1fe-5066355a896e/bin/uautomizer-vX5HgA9Q3a/data/4d5dbf912/4a8914c81bd74674a79b8f550045ad81/FLAGefec49fc1 [2022-11-21 14:01:33,626 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9afd2ab-40d3-4f11-a1fe-5066355a896e/bin/uautomizer-vX5HgA9Q3a/data/4d5dbf912/4a8914c81bd74674a79b8f550045ad81 [2022-11-21 14:01:33,628 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-21 14:01:33,630 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-21 14:01:33,631 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-21 14:01:33,632 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-21 14:01:33,636 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-21 14:01:33,636 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 02:01:33" (1/1) ... [2022-11-21 14:01:33,638 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@62858c2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 02:01:33, skipping insertion in model container [2022-11-21 14:01:33,638 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 02:01:33" (1/1) ... [2022-11-21 14:01:33,645 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-21 14:01:33,658 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-21 14:01:33,793 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 14:01:33,798 INFO L203 MainTranslator]: Completed pre-run [2022-11-21 14:01:33,814 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 14:01:33,827 INFO L208 MainTranslator]: Completed translation [2022-11-21 14:01:33,827 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 02:01:33 WrapperNode [2022-11-21 14:01:33,828 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-21 14:01:33,829 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-21 14:01:33,829 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-21 14:01:33,829 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-21 14:01:33,837 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 02:01:33" (1/1) ... [2022-11-21 14:01:33,846 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 02:01:33" (1/1) ... [2022-11-21 14:01:33,860 INFO L138 Inliner]: procedures = 6, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 20 [2022-11-21 14:01:33,861 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-21 14:01:33,861 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-21 14:01:33,862 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-21 14:01:33,862 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-21 14:01:33,870 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 02:01:33" (1/1) ... [2022-11-21 14:01:33,871 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 02:01:33" (1/1) ... [2022-11-21 14:01:33,872 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 02:01:33" (1/1) ... [2022-11-21 14:01:33,872 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 02:01:33" (1/1) ... [2022-11-21 14:01:33,874 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 02:01:33" (1/1) ... [2022-11-21 14:01:33,876 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 02:01:33" (1/1) ... [2022-11-21 14:01:33,876 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 02:01:33" (1/1) ... [2022-11-21 14:01:33,877 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 02:01:33" (1/1) ... [2022-11-21 14:01:33,878 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-21 14:01:33,879 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-21 14:01:33,880 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-21 14:01:33,880 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-21 14:01:33,881 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 02:01:33" (1/1) ... [2022-11-21 14:01:33,896 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-21 14:01:33,907 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9afd2ab-40d3-4f11-a1fe-5066355a896e/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 14:01:33,917 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9afd2ab-40d3-4f11-a1fe-5066355a896e/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-21 14:01:33,919 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9afd2ab-40d3-4f11-a1fe-5066355a896e/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-21 14:01:33,957 INFO L130 BoogieDeclarations]: Found specification of procedure average [2022-11-21 14:01:33,957 INFO L138 BoogieDeclarations]: Found implementation of procedure average [2022-11-21 14:01:33,957 INFO L130 BoogieDeclarations]: Found specification of procedure random [2022-11-21 14:01:33,957 INFO L138 BoogieDeclarations]: Found implementation of procedure random [2022-11-21 14:01:33,958 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-21 14:01:33,958 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-21 14:01:34,015 INFO L235 CfgBuilder]: Building ICFG [2022-11-21 14:01:34,017 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-21 14:01:34,176 INFO L276 CfgBuilder]: Performing block encoding [2022-11-21 14:01:34,184 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-21 14:01:34,184 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-21 14:01:34,186 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 02:01:34 BoogieIcfgContainer [2022-11-21 14:01:34,186 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-21 14:01:34,192 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-21 14:01:34,192 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-21 14:01:34,196 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-21 14:01:34,196 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 02:01:33" (1/3) ... [2022-11-21 14:01:34,197 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@473d381f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 02:01:34, skipping insertion in model container [2022-11-21 14:01:34,197 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 02:01:33" (2/3) ... [2022-11-21 14:01:34,198 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@473d381f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 02:01:34, skipping insertion in model container [2022-11-21 14:01:34,198 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 02:01:34" (3/3) ... [2022-11-21 14:01:34,199 INFO L112 eAbstractionObserver]: Analyzing ICFG Avg_true.c [2022-11-21 14:01:34,219 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-21 14:01:34,219 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 12 error locations. [2022-11-21 14:01:34,273 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-21 14:01:34,280 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;@5f67a095, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-21 14:01:34,280 INFO L358 AbstractCegarLoop]: Starting to check reachability of 12 error locations. [2022-11-21 14:01:34,285 INFO L276 IsEmpty]: Start isEmpty. Operand has 48 states, 28 states have (on average 1.5357142857142858) internal successors, (43), 40 states have internal predecessors, (43), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2022-11-21 14:01:34,292 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-11-21 14:01:34,292 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 14:01:34,293 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-11-21 14:01:34,293 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting randomErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [averageErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, averageErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, averageErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-11-21 14:01:34,299 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 14:01:34,299 INFO L85 PathProgramCache]: Analyzing trace with hash -2103477686, now seen corresponding path program 1 times [2022-11-21 14:01:34,309 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 14:01:34,309 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1102529121] [2022-11-21 14:01:34,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 14:01:34,310 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 14:01:34,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 14:01:34,389 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-21 14:01:34,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 14:01:34,409 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-21 14:01:34,410 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-21 14:01:34,412 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location randomErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 12 remaining) [2022-11-21 14:01:34,414 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location averageErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 12 remaining) [2022-11-21 14:01:34,414 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location averageErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 12 remaining) [2022-11-21 14:01:34,414 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location averageErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 12 remaining) [2022-11-21 14:01:34,414 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location averageErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 12 remaining) [2022-11-21 14:01:34,415 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location averageErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 12 remaining) [2022-11-21 14:01:34,415 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location averageErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 12 remaining) [2022-11-21 14:01:34,415 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location averageErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 12 remaining) [2022-11-21 14:01:34,416 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location averageErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 12 remaining) [2022-11-21 14:01:34,416 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location averageErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 12 remaining) [2022-11-21 14:01:34,416 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location averageErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 12 remaining) [2022-11-21 14:01:34,417 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location randomErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 12 remaining) [2022-11-21 14:01:34,417 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-21 14:01:34,421 INFO L444 BasicCegarLoop]: Path program histogram: [1] [2022-11-21 14:01:34,427 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-21 14:01:34,442 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.11 02:01:34 BoogieIcfgContainer [2022-11-21 14:01:34,442 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-21 14:01:34,443 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-21 14:01:34,443 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-21 14:01:34,443 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-21 14:01:34,444 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 02:01:34" (3/4) ... [2022-11-21 14:01:34,446 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-11-21 14:01:34,478 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9afd2ab-40d3-4f11-a1fe-5066355a896e/bin/uautomizer-vX5HgA9Q3a/witness.graphml [2022-11-21 14:01:34,478 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-21 14:01:34,479 INFO L158 Benchmark]: Toolchain (without parser) took 849.41ms. Allocated memory is still 195.0MB. Free memory was 161.8MB in the beginning and 122.6MB in the end (delta: 39.2MB). Peak memory consumption was 39.8MB. Max. memory is 16.1GB. [2022-11-21 14:01:34,480 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 146.8MB. Free memory is still 89.7MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-21 14:01:34,480 INFO L158 Benchmark]: CACSL2BoogieTranslator took 196.56ms. Allocated memory is still 195.0MB. Free memory was 161.8MB in the beginning and 152.6MB in the end (delta: 9.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-21 14:01:34,481 INFO L158 Benchmark]: Boogie Procedure Inliner took 32.06ms. Allocated memory is still 195.0MB. Free memory was 152.6MB in the beginning and 150.6MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-21 14:01:34,482 INFO L158 Benchmark]: Boogie Preprocessor took 17.33ms. Allocated memory is still 195.0MB. Free memory was 150.6MB in the beginning and 149.9MB in the end (delta: 765.4kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-21 14:01:34,482 INFO L158 Benchmark]: RCFGBuilder took 307.32ms. Allocated memory is still 195.0MB. Free memory was 149.9MB in the beginning and 138.7MB in the end (delta: 11.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-21 14:01:34,483 INFO L158 Benchmark]: TraceAbstraction took 249.91ms. Allocated memory is still 195.0MB. Free memory was 138.1MB in the beginning and 124.7MB in the end (delta: 13.4MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-11-21 14:01:34,484 INFO L158 Benchmark]: Witness Printer took 35.57ms. Allocated memory is still 195.0MB. Free memory was 124.7MB in the beginning and 123.3MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-21 14:01:34,487 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31ms. Allocated memory is still 146.8MB. Free memory is still 89.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 196.56ms. Allocated memory is still 195.0MB. Free memory was 161.8MB in the beginning and 152.6MB in the end (delta: 9.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 32.06ms. Allocated memory is still 195.0MB. Free memory was 152.6MB in the beginning and 150.6MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 17.33ms. Allocated memory is still 195.0MB. Free memory was 150.6MB in the beginning and 149.9MB in the end (delta: 765.4kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 307.32ms. Allocated memory is still 195.0MB. Free memory was 149.9MB in the beginning and 138.7MB in the end (delta: 11.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 249.91ms. Allocated memory is still 195.0MB. Free memory was 138.1MB in the beginning and 124.7MB in the end (delta: 13.4MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Witness Printer took 35.57ms. Allocated memory is still 195.0MB. Free memory was 124.7MB in the beginning and 123.3MB in the end (delta: 1.4MB). There was no memory consumed. 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: 35]: integer overflow possible integer overflow possible We found a FailurePath: [L25] int x = __VERIFIER_nondet_int(); [L26] int y = __VERIFIER_nondet_int(); [L27] int z = __VERIFIER_nondet_int(); [L28] CALL random() [L33] int x = __VERIFIER_nondet_int(); [L34] COND TRUE x < 0 VAL [x=-2147483648] [L35] -x VAL [x=-2147483648] - UnprovableResult [Line: 44]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 44]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 44]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 44]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 46]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 46]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 46]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 46]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 46]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 46]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 35]: 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 3 procedures, 48 locations, 12 error locations. Started 1 CEGAR loops. OverallTime: 0.2s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=48occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 6 NumberOfCodeBlocks, 6 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 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! [2022-11-21 14:01:34,516 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9afd2ab-40d3-4f11-a1fe-5066355a896e/bin/uautomizer-vX5HgA9Q3a/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)