./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-numeric/Et3_true.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 38b53e6a 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_e3de57be-abf9-44a1-be2d-d41f9529e38f/bin/uautomizer-ZsLfNo2U6R/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3de57be-abf9-44a1-be2d-d41f9529e38f/bin/uautomizer-ZsLfNo2U6R/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3de57be-abf9-44a1-be2d-d41f9529e38f/bin/uautomizer-ZsLfNo2U6R/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3de57be-abf9-44a1-be2d-d41f9529e38f/bin/uautomizer-ZsLfNo2U6R/config/AutomizerReach.xml -i ../../sv-benchmarks/c/termination-numeric/Et3_true.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3de57be-abf9-44a1-be2d-d41f9529e38f/bin/uautomizer-ZsLfNo2U6R/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3de57be-abf9-44a1-be2d-d41f9529e38f/bin/uautomizer-ZsLfNo2U6R --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 350bcba9492528817ac8a0cf6c60305675b82628002dcb9cf778962d99ace2e1 --- 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-38b53e6 [2022-11-25 16:50:20,655 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 16:50:20,658 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 16:50:20,707 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 16:50:20,709 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 16:50:20,713 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 16:50:20,717 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 16:50:20,720 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 16:50:20,723 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 16:50:20,729 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 16:50:20,731 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 16:50:20,733 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 16:50:20,734 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 16:50:20,737 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 16:50:20,739 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 16:50:20,742 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 16:50:20,745 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 16:50:20,746 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 16:50:20,748 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 16:50:20,755 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 16:50:20,757 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 16:50:20,760 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 16:50:20,762 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 16:50:20,763 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 16:50:20,773 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 16:50:20,775 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 16:50:20,775 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 16:50:20,776 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 16:50:20,778 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 16:50:20,779 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 16:50:20,780 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 16:50:20,781 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 16:50:20,785 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 16:50:20,786 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 16:50:20,788 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 16:50:20,788 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 16:50:20,789 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 16:50:20,789 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 16:50:20,790 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 16:50:20,792 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 16:50:20,793 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 16:50:20,794 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3de57be-abf9-44a1-be2d-d41f9529e38f/bin/uautomizer-ZsLfNo2U6R/config/svcomp-Overflow-64bit-Automizer_Default.epf [2022-11-25 16:50:20,840 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 16:50:20,841 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 16:50:20,841 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 16:50:20,842 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 16:50:20,843 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 16:50:20,843 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 16:50:20,844 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-25 16:50:20,844 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-25 16:50:20,844 INFO L138 SettingsManager]: * Use SBE=true [2022-11-25 16:50:20,845 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 16:50:20,846 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-25 16:50:20,846 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-25 16:50:20,847 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 16:50:20,847 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-25 16:50:20,847 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 16:50:20,847 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-25 16:50:20,848 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-25 16:50:20,848 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-25 16:50:20,848 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 16:50:20,848 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-25 16:50:20,849 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 16:50:20,849 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-25 16:50:20,849 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 16:50:20,849 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 16:50:20,850 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 16:50:20,850 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 16:50:20,850 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-25 16:50:20,850 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-25 16:50:20,851 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-25 16:50:20,851 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-25 16:50:20,851 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-25 16:50:20,851 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-11-25 16:50:20,852 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-25 16:50:20,852 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_e3de57be-abf9-44a1-be2d-d41f9529e38f/bin/uautomizer-ZsLfNo2U6R/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3de57be-abf9-44a1-be2d-d41f9529e38f/bin/uautomizer-ZsLfNo2U6R Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 350bcba9492528817ac8a0cf6c60305675b82628002dcb9cf778962d99ace2e1 [2022-11-25 16:50:21,247 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 16:50:21,289 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 16:50:21,292 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 16:50:21,293 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 16:50:21,294 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 16:50:21,295 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3de57be-abf9-44a1-be2d-d41f9529e38f/bin/uautomizer-ZsLfNo2U6R/../../sv-benchmarks/c/termination-numeric/Et3_true.c [2022-11-25 16:50:24,668 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 16:50:24,924 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 16:50:24,924 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3de57be-abf9-44a1-be2d-d41f9529e38f/sv-benchmarks/c/termination-numeric/Et3_true.c [2022-11-25 16:50:24,932 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3de57be-abf9-44a1-be2d-d41f9529e38f/bin/uautomizer-ZsLfNo2U6R/data/f05c3241d/69335cbf3a694df3a87d1673f7a97d41/FLAGef18c7741 [2022-11-25 16:50:24,948 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3de57be-abf9-44a1-be2d-d41f9529e38f/bin/uautomizer-ZsLfNo2U6R/data/f05c3241d/69335cbf3a694df3a87d1673f7a97d41 [2022-11-25 16:50:24,952 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 16:50:24,954 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 16:50:24,956 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 16:50:24,956 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 16:50:24,961 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 16:50:24,962 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 04:50:24" (1/1) ... [2022-11-25 16:50:24,963 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6135bcec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:50:24, skipping insertion in model container [2022-11-25 16:50:24,963 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 04:50:24" (1/1) ... [2022-11-25 16:50:24,973 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 16:50:24,990 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 16:50:25,199 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 16:50:25,206 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 16:50:25,225 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 16:50:25,243 INFO L208 MainTranslator]: Completed translation [2022-11-25 16:50:25,244 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:50:25 WrapperNode [2022-11-25 16:50:25,247 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 16:50:25,248 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 16:50:25,249 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 16:50:25,250 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 16:50:25,258 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:50:25" (1/1) ... [2022-11-25 16:50:25,264 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:50:25" (1/1) ... [2022-11-25 16:50:25,284 INFO L138 Inliner]: procedures = 6, calls = 6, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 18 [2022-11-25 16:50:25,284 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 16:50:25,285 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 16:50:25,285 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 16:50:25,285 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 16:50:25,296 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:50:25" (1/1) ... [2022-11-25 16:50:25,296 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:50:25" (1/1) ... [2022-11-25 16:50:25,298 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:50:25" (1/1) ... [2022-11-25 16:50:25,298 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:50:25" (1/1) ... [2022-11-25 16:50:25,306 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:50:25" (1/1) ... [2022-11-25 16:50:25,308 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:50:25" (1/1) ... [2022-11-25 16:50:25,309 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:50:25" (1/1) ... [2022-11-25 16:50:25,310 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:50:25" (1/1) ... [2022-11-25 16:50:25,313 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 16:50:25,315 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 16:50:25,316 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 16:50:25,316 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 16:50:25,318 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:50:25" (1/1) ... [2022-11-25 16:50:25,326 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 16:50:25,338 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3de57be-abf9-44a1-be2d-d41f9529e38f/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 16:50:25,355 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3de57be-abf9-44a1-be2d-d41f9529e38f/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 16:50:25,387 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3de57be-abf9-44a1-be2d-d41f9529e38f/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 16:50:25,414 INFO L130 BoogieDeclarations]: Found specification of procedure random [2022-11-25 16:50:25,414 INFO L138 BoogieDeclarations]: Found implementation of procedure random [2022-11-25 16:50:25,415 INFO L130 BoogieDeclarations]: Found specification of procedure loop [2022-11-25 16:50:25,415 INFO L138 BoogieDeclarations]: Found implementation of procedure loop [2022-11-25 16:50:25,415 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 16:50:25,416 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 16:50:25,478 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 16:50:25,480 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 16:50:25,637 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 16:50:25,646 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 16:50:25,646 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-25 16:50:25,648 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 04:50:25 BoogieIcfgContainer [2022-11-25 16:50:25,649 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 16:50:25,652 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 16:50:25,652 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 16:50:25,656 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 16:50:25,656 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 04:50:24" (1/3) ... [2022-11-25 16:50:25,657 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@632e524a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 04:50:25, skipping insertion in model container [2022-11-25 16:50:25,657 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:50:25" (2/3) ... [2022-11-25 16:50:25,658 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@632e524a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 04:50:25, skipping insertion in model container [2022-11-25 16:50:25,658 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 04:50:25" (3/3) ... [2022-11-25 16:50:25,660 INFO L112 eAbstractionObserver]: Analyzing ICFG Et3_true.c [2022-11-25 16:50:25,682 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 16:50:25,682 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2022-11-25 16:50:25,764 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 16:50:25,784 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;@6e7d51a2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 16:50:25,787 INFO L358 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2022-11-25 16:50:25,802 INFO L276 IsEmpty]: Start isEmpty. Operand has 32 states, 19 states have (on average 1.4210526315789473) internal successors, (27), 26 states have internal predecessors, (27), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-11-25 16:50:25,810 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-11-25 16:50:25,820 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 16:50:25,821 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-11-25 16:50:25,821 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting randomErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [randomErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, randomErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, loopErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-25 16:50:25,832 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:50:25,832 INFO L85 PathProgramCache]: Analyzing trace with hash 1688494395, now seen corresponding path program 1 times [2022-11-25 16:50:25,843 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 16:50:25,844 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1937981748] [2022-11-25 16:50:25,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:50:25,844 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 16:50:25,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:50:26,100 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 16:50:26,100 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 16:50:26,101 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1937981748] [2022-11-25 16:50:26,102 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1937981748] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 16:50:26,102 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 16:50:26,102 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-25 16:50:26,104 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [373856499] [2022-11-25 16:50:26,105 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 16:50:26,110 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 16:50:26,110 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 16:50:26,167 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 16:50:26,169 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 16:50:26,172 INFO L87 Difference]: Start difference. First operand has 32 states, 19 states have (on average 1.4210526315789473) internal successors, (27), 26 states have internal predecessors, (27), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:50:26,218 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 16:50:26,218 INFO L93 Difference]: Finished difference Result 34 states and 38 transitions. [2022-11-25 16:50:26,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 16:50:26,221 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), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2022-11-25 16:50:26,222 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 16:50:26,231 INFO L225 Difference]: With dead ends: 34 [2022-11-25 16:50:26,231 INFO L226 Difference]: Without dead ends: 27 [2022-11-25 16:50:26,234 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 [2022-11-25 16:50:26,238 INFO L413 NwaCegarLoop]: 34 mSDtfsCounter, 4 mSDsluCounter, 30 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 64 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 16:50:26,240 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 64 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 16:50:26,259 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2022-11-25 16:50:26,279 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 25. [2022-11-25 16:50:26,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25 states, 15 states have (on average 1.4) internal successors, (21), 20 states have internal predecessors, (21), 4 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-25 16:50:26,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 27 transitions. [2022-11-25 16:50:26,283 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 27 transitions. Word has length 6 [2022-11-25 16:50:26,284 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 16:50:26,284 INFO L495 AbstractCegarLoop]: Abstraction has 25 states and 27 transitions. [2022-11-25 16:50:26,284 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:50:26,285 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 27 transitions. [2022-11-25 16:50:26,286 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-11-25 16:50:26,286 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 16:50:26,286 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-25 16:50:26,287 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-25 16:50:26,287 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting randomErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [randomErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, randomErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, loopErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-25 16:50:26,288 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:50:26,288 INFO L85 PathProgramCache]: Analyzing trace with hash 803718730, now seen corresponding path program 1 times [2022-11-25 16:50:26,289 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 16:50:26,289 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [939343775] [2022-11-25 16:50:26,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:50:26,290 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 16:50:26,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 16:50:26,303 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-25 16:50:26,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 16:50:26,326 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-25 16:50:26,327 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-11-25 16:50:26,329 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location randomErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 6 remaining) [2022-11-25 16:50:26,331 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location randomErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 6 remaining) [2022-11-25 16:50:26,332 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location loopErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 6 remaining) [2022-11-25 16:50:26,332 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location loopErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 6 remaining) [2022-11-25 16:50:26,333 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location loopErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 6 remaining) [2022-11-25 16:50:26,333 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location loopErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 6 remaining) [2022-11-25 16:50:26,334 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-25 16:50:26,338 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2022-11-25 16:50:26,344 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-25 16:50:26,372 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.11 04:50:26 BoogieIcfgContainer [2022-11-25 16:50:26,372 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-25 16:50:26,374 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-25 16:50:26,375 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-25 16:50:26,376 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-25 16:50:26,376 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 04:50:25" (3/4) ... [2022-11-25 16:50:26,379 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-11-25 16:50:26,431 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3de57be-abf9-44a1-be2d-d41f9529e38f/bin/uautomizer-ZsLfNo2U6R/witness.graphml [2022-11-25 16:50:26,431 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-25 16:50:26,435 INFO L158 Benchmark]: Toolchain (without parser) took 1478.48ms. Allocated memory is still 157.3MB. Free memory was 116.0MB in the beginning and 112.3MB in the end (delta: 3.7MB). Peak memory consumption was 4.9MB. Max. memory is 16.1GB. [2022-11-25 16:50:26,436 INFO L158 Benchmark]: CDTParser took 0.34ms. Allocated memory is still 117.4MB. Free memory is still 65.8MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 16:50:26,436 INFO L158 Benchmark]: CACSL2BoogieTranslator took 291.64ms. Allocated memory is still 157.3MB. Free memory was 115.6MB in the beginning and 106.2MB in the end (delta: 9.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-25 16:50:26,437 INFO L158 Benchmark]: Boogie Procedure Inliner took 35.96ms. Allocated memory is still 157.3MB. Free memory was 106.2MB in the beginning and 105.0MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 16:50:26,438 INFO L158 Benchmark]: Boogie Preprocessor took 28.64ms. Allocated memory is still 157.3MB. Free memory was 105.0MB in the beginning and 103.8MB in the end (delta: 1.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-25 16:50:26,440 INFO L158 Benchmark]: RCFGBuilder took 333.63ms. Allocated memory is still 157.3MB. Free memory was 103.8MB in the beginning and 94.2MB in the end (delta: 9.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-25 16:50:26,441 INFO L158 Benchmark]: TraceAbstraction took 720.62ms. Allocated memory is still 157.3MB. Free memory was 93.3MB in the beginning and 113.7MB in the end (delta: -20.4MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 16:50:26,442 INFO L158 Benchmark]: Witness Printer took 57.69ms. Allocated memory is still 157.3MB. Free memory was 113.7MB in the beginning and 112.3MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 16:50:26,447 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34ms. Allocated memory is still 117.4MB. Free memory is still 65.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 291.64ms. Allocated memory is still 157.3MB. Free memory was 115.6MB in the beginning and 106.2MB in the end (delta: 9.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 35.96ms. Allocated memory is still 157.3MB. Free memory was 106.2MB in the beginning and 105.0MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 28.64ms. Allocated memory is still 157.3MB. Free memory was 105.0MB in the beginning and 103.8MB in the end (delta: 1.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 333.63ms. Allocated memory is still 157.3MB. Free memory was 103.8MB in the beginning and 94.2MB in the end (delta: 9.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 720.62ms. Allocated memory is still 157.3MB. Free memory was 93.3MB in the beginning and 113.7MB in the end (delta: -20.4MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 57.69ms. Allocated memory is still 157.3MB. Free memory was 113.7MB in the beginning and 112.3MB 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: 32]: integer overflow possible integer overflow possible We found a FailurePath: [L22] int x = __VERIFIER_nondet_int(); [L23] int y = __VERIFIER_nondet_int(); [L24] int z = __VERIFIER_nondet_int(); [L25] CALL random() [L30] int x = __VERIFIER_nondet_int(); [L31] COND TRUE x < 0 VAL [x=-2147483648] [L32] -x VAL [x=-2147483648] - UnprovableResult [Line: 32]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 39]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 39]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 40]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 40]: 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, 32 locations, 6 error locations. Started 1 CEGAR loops. OverallTime: 0.6s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 4 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 4 mSDsluCounter, 64 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 30 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 5 IncrementalHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 34 mSDtfsCounter, 5 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=32occurred in iteration=0, InterpolantAutomatonStates: 3, 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, 1 MinimizatonAttempts, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 13 NumberOfCodeBlocks, 13 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 5 ConstructedInterpolants, 0 QuantifiedInterpolants, 9 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 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! [2022-11-25 16:50:26,478 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3de57be-abf9-44a1-be2d-d41f9529e38f/bin/uautomizer-ZsLfNo2U6R/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)