./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-memory-alloca/ex3b-alloca.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 38b53e6a 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_e39047fd-234e-40d5-9df0-bb067480994e/bin/uautomizer-ZsLfNo2U6R/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e39047fd-234e-40d5-9df0-bb067480994e/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_e39047fd-234e-40d5-9df0-bb067480994e/bin/uautomizer-ZsLfNo2U6R/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e39047fd-234e-40d5-9df0-bb067480994e/bin/uautomizer-ZsLfNo2U6R/config/AutomizerReach.xml -i ../../sv-benchmarks/c/termination-memory-alloca/ex3b-alloca.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e39047fd-234e-40d5-9df0-bb067480994e/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_e39047fd-234e-40d5-9df0-bb067480994e/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 f23478267c7db041e0d430f7852fa8cba288847df5f5dded3d7c2138de17e1ef --- 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 15:32:20,000 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 15:32:20,003 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 15:32:20,050 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 15:32:20,051 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 15:32:20,055 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 15:32:20,058 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 15:32:20,062 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 15:32:20,064 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 15:32:20,071 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 15:32:20,072 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 15:32:20,075 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 15:32:20,077 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 15:32:20,079 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 15:32:20,083 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 15:32:20,085 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 15:32:20,090 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 15:32:20,091 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 15:32:20,093 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 15:32:20,095 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 15:32:20,101 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 15:32:20,104 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 15:32:20,106 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 15:32:20,107 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 15:32:20,111 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 15:32:20,115 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 15:32:20,115 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 15:32:20,116 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 15:32:20,116 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 15:32:20,117 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 15:32:20,118 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 15:32:20,119 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 15:32:20,120 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 15:32:20,121 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 15:32:20,122 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 15:32:20,122 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 15:32:20,123 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 15:32:20,123 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 15:32:20,124 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 15:32:20,124 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 15:32:20,125 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 15:32:20,126 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e39047fd-234e-40d5-9df0-bb067480994e/bin/uautomizer-ZsLfNo2U6R/config/svcomp-Overflow-64bit-Automizer_Default.epf [2022-11-25 15:32:20,164 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 15:32:20,165 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 15:32:20,165 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 15:32:20,165 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 15:32:20,166 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 15:32:20,167 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 15:32:20,167 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-25 15:32:20,182 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-25 15:32:20,182 INFO L138 SettingsManager]: * Use SBE=true [2022-11-25 15:32:20,182 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 15:32:20,183 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-25 15:32:20,184 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-25 15:32:20,184 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 15:32:20,184 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-25 15:32:20,185 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 15:32:20,185 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-25 15:32:20,185 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-25 15:32:20,185 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-25 15:32:20,186 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 15:32:20,186 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-25 15:32:20,186 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 15:32:20,186 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-25 15:32:20,187 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 15:32:20,187 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 15:32:20,187 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 15:32:20,187 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 15:32:20,188 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-25 15:32:20,188 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-25 15:32:20,189 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-25 15:32:20,189 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-25 15:32:20,189 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-25 15:32:20,189 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-11-25 15:32:20,190 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-25 15:32:20,190 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_e39047fd-234e-40d5-9df0-bb067480994e/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e39047fd-234e-40d5-9df0-bb067480994e/bin/uautomizer-ZsLfNo2U6R Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f23478267c7db041e0d430f7852fa8cba288847df5f5dded3d7c2138de17e1ef [2022-11-25 15:32:20,495 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 15:32:20,526 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 15:32:20,528 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 15:32:20,530 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 15:32:20,530 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 15:32:20,531 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e39047fd-234e-40d5-9df0-bb067480994e/bin/uautomizer-ZsLfNo2U6R/../../sv-benchmarks/c/termination-memory-alloca/ex3b-alloca.i [2022-11-25 15:32:23,633 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 15:32:23,965 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 15:32:23,966 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e39047fd-234e-40d5-9df0-bb067480994e/sv-benchmarks/c/termination-memory-alloca/ex3b-alloca.i [2022-11-25 15:32:23,976 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e39047fd-234e-40d5-9df0-bb067480994e/bin/uautomizer-ZsLfNo2U6R/data/dc4542600/2c1eaf88ba0240baa6dffbe9302730a4/FLAG1bdccf22a [2022-11-25 15:32:23,997 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e39047fd-234e-40d5-9df0-bb067480994e/bin/uautomizer-ZsLfNo2U6R/data/dc4542600/2c1eaf88ba0240baa6dffbe9302730a4 [2022-11-25 15:32:23,999 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 15:32:24,001 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 15:32:24,002 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 15:32:24,003 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 15:32:24,014 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 15:32:24,015 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 03:32:23" (1/1) ... [2022-11-25 15:32:24,016 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@b4baa14 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:32:24, skipping insertion in model container [2022-11-25 15:32:24,017 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 03:32:23" (1/1) ... [2022-11-25 15:32:24,025 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 15:32:24,075 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 15:32:24,348 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 15:32:24,362 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 15:32:24,427 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 15:32:24,471 INFO L208 MainTranslator]: Completed translation [2022-11-25 15:32:24,471 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:32:24 WrapperNode [2022-11-25 15:32:24,473 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 15:32:24,475 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 15:32:24,475 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 15:32:24,476 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 15:32:24,483 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:32:24" (1/1) ... [2022-11-25 15:32:24,505 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:32:24" (1/1) ... [2022-11-25 15:32:24,532 INFO L138 Inliner]: procedures = 111, calls = 24, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 71 [2022-11-25 15:32:24,532 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 15:32:24,533 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 15:32:24,533 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 15:32:24,533 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 15:32:24,542 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:32:24" (1/1) ... [2022-11-25 15:32:24,542 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:32:24" (1/1) ... [2022-11-25 15:32:24,559 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:32:24" (1/1) ... [2022-11-25 15:32:24,560 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:32:24" (1/1) ... [2022-11-25 15:32:24,563 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:32:24" (1/1) ... [2022-11-25 15:32:24,578 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:32:24" (1/1) ... [2022-11-25 15:32:24,579 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:32:24" (1/1) ... [2022-11-25 15:32:24,580 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:32:24" (1/1) ... [2022-11-25 15:32:24,582 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 15:32:24,583 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 15:32:24,585 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 15:32:24,585 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 15:32:24,586 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:32:24" (1/1) ... [2022-11-25 15:32:24,594 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 15:32:24,606 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e39047fd-234e-40d5-9df0-bb067480994e/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 15:32:24,620 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e39047fd-234e-40d5-9df0-bb067480994e/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 15:32:24,649 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e39047fd-234e-40d5-9df0-bb067480994e/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 15:32:24,676 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-25 15:32:24,677 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-25 15:32:24,677 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-25 15:32:24,677 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-25 15:32:24,677 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 15:32:24,678 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 15:32:24,819 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 15:32:24,821 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 15:32:25,042 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 15:32:25,051 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 15:32:25,058 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-25 15:32:25,061 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 03:32:25 BoogieIcfgContainer [2022-11-25 15:32:25,061 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 15:32:25,064 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 15:32:25,064 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 15:32:25,075 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 15:32:25,075 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 03:32:23" (1/3) ... [2022-11-25 15:32:25,076 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6030eb92 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 03:32:25, skipping insertion in model container [2022-11-25 15:32:25,076 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:32:24" (2/3) ... [2022-11-25 15:32:25,077 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6030eb92 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 03:32:25, skipping insertion in model container [2022-11-25 15:32:25,077 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 03:32:25" (3/3) ... [2022-11-25 15:32:25,078 INFO L112 eAbstractionObserver]: Analyzing ICFG ex3b-alloca.i [2022-11-25 15:32:25,103 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 15:32:25,103 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2022-11-25 15:32:25,167 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 15:32:25,176 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;@25d08798, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 15:32:25,176 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-11-25 15:32:25,182 INFO L276 IsEmpty]: Start isEmpty. Operand has 18 states, 13 states have (on average 1.5384615384615385) internal successors, (20), 17 states have internal predecessors, (20), 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) [2022-11-25 15:32:25,192 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-11-25 15:32:25,192 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 15:32:25,193 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-11-25 15:32:25,195 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-11-25 15:32:25,204 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:32:25,205 INFO L85 PathProgramCache]: Analyzing trace with hash 889569447, now seen corresponding path program 1 times [2022-11-25 15:32:25,220 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 15:32:25,221 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1350443691] [2022-11-25 15:32:25,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:32:25,222 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 15:32:25,429 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-25 15:32:25,430 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1303937601] [2022-11-25 15:32:25,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:32:25,430 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 15:32:25,431 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e39047fd-234e-40d5-9df0-bb067480994e/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 15:32:25,435 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e39047fd-234e-40d5-9df0-bb067480994e/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 15:32:25,459 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e39047fd-234e-40d5-9df0-bb067480994e/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-25 15:32:25,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:32:25,585 INFO L263 TraceCheckSpWp]: Trace formula consists of 108 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-25 15:32:25,591 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 15:32:25,850 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 10 [2022-11-25 15:32:25,891 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 15:32:25,891 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 15:32:25,892 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 15:32:25,892 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1350443691] [2022-11-25 15:32:25,892 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-25 15:32:25,907 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1303937601] [2022-11-25 15:32:25,908 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1303937601] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 15:32:25,908 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 15:32:25,908 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-25 15:32:25,911 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [327731451] [2022-11-25 15:32:25,912 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 15:32:25,917 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 15:32:25,918 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 15:32:25,957 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 15:32:25,958 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-25 15:32:25,960 INFO L87 Difference]: Start difference. First operand has 18 states, 13 states have (on average 1.5384615384615385) internal successors, (20), 17 states have internal predecessors, (20), 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 5 states, 4 states have (on average 1.5) internal successors, (6), 5 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 15:32:26,042 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 15:32:26,043 INFO L93 Difference]: Finished difference Result 29 states and 30 transitions. [2022-11-25 15:32:26,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-25 15:32:26,065 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 1.5) internal successors, (6), 5 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2022-11-25 15:32:26,065 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 15:32:26,074 INFO L225 Difference]: With dead ends: 29 [2022-11-25 15:32:26,074 INFO L226 Difference]: Without dead ends: 13 [2022-11-25 15:32:26,078 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-11-25 15:32:26,081 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 25 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 23 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 15:32:26,083 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 23 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 15:32:26,123 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2022-11-25 15:32:26,136 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 12. [2022-11-25 15:32:26,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 11 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 15:32:26,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 13 transitions. [2022-11-25 15:32:26,140 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 13 transitions. Word has length 6 [2022-11-25 15:32:26,140 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 15:32:26,141 INFO L495 AbstractCegarLoop]: Abstraction has 12 states and 13 transitions. [2022-11-25 15:32:26,141 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 1.5) internal successors, (6), 5 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 15:32:26,142 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 13 transitions. [2022-11-25 15:32:26,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-11-25 15:32:26,142 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 15:32:26,142 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-25 15:32:26,155 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e39047fd-234e-40d5-9df0-bb067480994e/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-25 15:32:26,348 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e39047fd-234e-40d5-9df0-bb067480994e/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2022-11-25 15:32:26,349 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-11-25 15:32:26,350 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:32:26,350 INFO L85 PathProgramCache]: Analyzing trace with hash 1806849133, now seen corresponding path program 1 times [2022-11-25 15:32:26,350 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 15:32:26,350 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [909518587] [2022-11-25 15:32:26,350 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:32:26,351 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 15:32:26,393 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-25 15:32:26,396 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [428253052] [2022-11-25 15:32:26,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:32:26,397 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 15:32:26,397 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e39047fd-234e-40d5-9df0-bb067480994e/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 15:32:26,399 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e39047fd-234e-40d5-9df0-bb067480994e/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 15:32:26,400 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e39047fd-234e-40d5-9df0-bb067480994e/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-25 15:32:26,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 15:32:26,533 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-25 15:32:26,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 15:32:26,612 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-25 15:32:26,613 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-11-25 15:32:26,615 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 4 remaining) [2022-11-25 15:32:26,617 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 4 remaining) [2022-11-25 15:32:26,618 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 4 remaining) [2022-11-25 15:32:26,618 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 4 remaining) [2022-11-25 15:32:26,630 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e39047fd-234e-40d5-9df0-bb067480994e/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-25 15:32:26,825 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e39047fd-234e-40d5-9df0-bb067480994e/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 15:32:26,829 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2022-11-25 15:32:26,834 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-25 15:32:26,886 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.11 03:32:26 BoogieIcfgContainer [2022-11-25 15:32:26,886 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-25 15:32:26,887 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-25 15:32:26,887 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-25 15:32:26,887 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-25 15:32:26,888 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 03:32:25" (3/4) ... [2022-11-25 15:32:26,892 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-11-25 15:32:26,944 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e39047fd-234e-40d5-9df0-bb067480994e/bin/uautomizer-ZsLfNo2U6R/witness.graphml [2022-11-25 15:32:26,949 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-25 15:32:26,950 INFO L158 Benchmark]: Toolchain (without parser) took 2949.35ms. Allocated memory was 172.0MB in the beginning and 218.1MB in the end (delta: 46.1MB). Free memory was 139.0MB in the beginning and 181.3MB in the end (delta: -42.3MB). Peak memory consumption was 5.5MB. Max. memory is 16.1GB. [2022-11-25 15:32:26,951 INFO L158 Benchmark]: CDTParser took 0.25ms. Allocated memory is still 172.0MB. Free memory is still 141.3MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 15:32:26,956 INFO L158 Benchmark]: CACSL2BoogieTranslator took 471.61ms. Allocated memory is still 172.0MB. Free memory was 139.0MB in the beginning and 123.3MB in the end (delta: 15.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-11-25 15:32:26,957 INFO L158 Benchmark]: Boogie Procedure Inliner took 57.78ms. Allocated memory is still 172.0MB. Free memory was 123.3MB in the beginning and 121.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-25 15:32:26,957 INFO L158 Benchmark]: Boogie Preprocessor took 49.75ms. Allocated memory is still 172.0MB. Free memory was 121.2MB in the beginning and 120.1MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 15:32:26,958 INFO L158 Benchmark]: RCFGBuilder took 478.24ms. Allocated memory is still 172.0MB. Free memory was 120.1MB in the beginning and 107.5MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-11-25 15:32:26,958 INFO L158 Benchmark]: TraceAbstraction took 1822.37ms. Allocated memory was 172.0MB in the beginning and 218.1MB in the end (delta: 46.1MB). Free memory was 107.1MB in the beginning and 183.4MB in the end (delta: -76.3MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 15:32:26,964 INFO L158 Benchmark]: Witness Printer took 62.54ms. Allocated memory is still 218.1MB. Free memory was 183.4MB in the beginning and 181.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-25 15:32:26,966 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25ms. Allocated memory is still 172.0MB. Free memory is still 141.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 471.61ms. Allocated memory is still 172.0MB. Free memory was 139.0MB in the beginning and 123.3MB in the end (delta: 15.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 57.78ms. Allocated memory is still 172.0MB. Free memory was 123.3MB in the beginning and 121.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 49.75ms. Allocated memory is still 172.0MB. Free memory was 121.2MB in the beginning and 120.1MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 478.24ms. Allocated memory is still 172.0MB. Free memory was 120.1MB in the beginning and 107.5MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 1822.37ms. Allocated memory was 172.0MB in the beginning and 218.1MB in the end (delta: 46.1MB). Free memory was 107.1MB in the beginning and 183.4MB in the end (delta: -76.3MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 62.54ms. Allocated memory is still 218.1MB. Free memory was 183.4MB in the beginning and 181.3MB in the end (delta: 2.1MB). 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: 556]: integer overflow possible integer overflow possible We found a FailurePath: [L562] CALL test_fun(__VERIFIER_nondet_int(),__VERIFIER_nondet_int()) [L549] int* x_ref = __builtin_alloca (sizeof(int)); [L550] int* y_ref = __builtin_alloca (sizeof(int)); [L551] int* c = __builtin_alloca (sizeof(int)); [L552] *x_ref = x [L553] *y_ref = y [L554] *c = 0 VAL [\old(x)=1026543, \old(y)=1026544, __builtin_alloca (sizeof(int))={5:0}, __builtin_alloca (sizeof(int))={2:0}, __builtin_alloca (sizeof(int))={4:0}, c={4:0}, x=1026543, x_ref={5:0}, y=1026544, y_ref={2:0}] [L555] EXPR \read(*x_ref) [L555] (*x_ref > 1) && (*x_ref < *y_ref) [L555] EXPR \read(*x_ref) [L555] EXPR \read(*y_ref) [L555] (*x_ref > 1) && (*x_ref < *y_ref) VAL [(*x_ref > 1) && (*x_ref < *y_ref)=1, \old(x)=1026543, \old(y)=1026544, \read(*x_ref)=1026543, \read(*x_ref)=1026543, \read(*y_ref)=1026544, __builtin_alloca (sizeof(int))={5:0}, __builtin_alloca (sizeof(int))={2:0}, __builtin_alloca (sizeof(int))={4:0}, c={4:0}, x=1026543, x_ref={5:0}, y=1026544, y_ref={2:0}] [L555] COND TRUE (*x_ref > 1) && (*x_ref < *y_ref) [L556] EXPR \read(*x_ref) [L556] EXPR \read(*x_ref) VAL [\old(x)=1026543, \old(y)=1026544, \read(*x_ref)=1026543, \read(*x_ref)=1026543, __builtin_alloca (sizeof(int))={5:0}, __builtin_alloca (sizeof(int))={2:0}, __builtin_alloca (sizeof(int))={4:0}, c={4:0}, x=1026543, x_ref={5:0}, y=1026544, y_ref={2:0}] [L556] (*x_ref) * (*x_ref) VAL [\old(x)=1026543, \old(y)=1026544, \read(*x_ref)=1026543, \read(*x_ref)=1026543, __builtin_alloca (sizeof(int))={5:0}, __builtin_alloca (sizeof(int))={2:0}, __builtin_alloca (sizeof(int))={4:0}, c={4:0}, x=1026543, x_ref={5:0}, y=1026544, y_ref={2:0}] - UnprovableResult [Line: 556]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 557]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 557]: 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, 18 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 1.7s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 25 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 25 mSDsluCounter, 23 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 13 mSDsCounter, 5 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 20 IncrementalHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 5 mSolverCounterUnsat, 10 mSDtfsCounter, 20 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=18occurred in iteration=0, InterpolantAutomatonStates: 5, 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, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 13 NumberOfCodeBlocks, 13 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 5 ConstructedInterpolants, 0 QuantifiedInterpolants, 26 SizeOfPredicates, 4 NumberOfNonLiveVariables, 108 ConjunctsInSsa, 6 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 15:32:26,993 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e39047fd-234e-40d5-9df0-bb067480994e/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)