./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-memory-alloca/mult_array-alloca-2.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 8393723b 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_f101879d-a4eb-4919-9dec-22065a5ea824/bin/uautomizer-TMbwUNV5ro/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f101879d-a4eb-4919-9dec-22065a5ea824/bin/uautomizer-TMbwUNV5ro/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f101879d-a4eb-4919-9dec-22065a5ea824/bin/uautomizer-TMbwUNV5ro/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f101879d-a4eb-4919-9dec-22065a5ea824/bin/uautomizer-TMbwUNV5ro/config/AutomizerReach.xml -i ../../sv-benchmarks/c/termination-memory-alloca/mult_array-alloca-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f101879d-a4eb-4919-9dec-22065a5ea824/bin/uautomizer-TMbwUNV5ro/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f101879d-a4eb-4919-9dec-22065a5ea824/bin/uautomizer-TMbwUNV5ro --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 5744db56abf24224cf1693e3e46d5bede5dd8c74199d1ade21d96d1156922237 --- 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-8393723 [2022-11-18 20:51:16,909 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-18 20:51:16,911 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-18 20:51:16,952 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-18 20:51:16,952 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-18 20:51:16,957 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-18 20:51:16,961 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-18 20:51:16,964 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-18 20:51:16,971 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-18 20:51:16,973 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-18 20:51:16,975 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-18 20:51:16,977 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-18 20:51:16,978 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-18 20:51:16,984 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-18 20:51:16,987 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-18 20:51:16,989 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-18 20:51:16,991 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-18 20:51:16,994 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-18 20:51:16,996 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-18 20:51:17,004 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-18 20:51:17,007 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-18 20:51:17,009 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-18 20:51:17,012 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-18 20:51:17,014 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-18 20:51:17,024 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-18 20:51:17,024 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-18 20:51:17,025 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-18 20:51:17,027 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-18 20:51:17,028 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-18 20:51:17,029 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-18 20:51:17,030 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-18 20:51:17,032 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-18 20:51:17,034 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-18 20:51:17,035 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-18 20:51:17,038 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-18 20:51:17,038 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-18 20:51:17,039 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-18 20:51:17,040 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-18 20:51:17,040 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-18 20:51:17,041 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-18 20:51:17,042 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-18 20:51:17,043 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f101879d-a4eb-4919-9dec-22065a5ea824/bin/uautomizer-TMbwUNV5ro/config/svcomp-Overflow-64bit-Automizer_Default.epf [2022-11-18 20:51:17,098 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-18 20:51:17,098 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-18 20:51:17,099 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-18 20:51:17,100 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-18 20:51:17,101 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-18 20:51:17,101 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-18 20:51:17,102 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-18 20:51:17,102 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-18 20:51:17,102 INFO L138 SettingsManager]: * Use SBE=true [2022-11-18 20:51:17,103 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-18 20:51:17,104 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-18 20:51:17,105 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-18 20:51:17,105 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-18 20:51:17,105 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-18 20:51:17,105 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-18 20:51:17,106 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-18 20:51:17,106 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-18 20:51:17,106 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-18 20:51:17,106 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-18 20:51:17,107 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-18 20:51:17,107 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-18 20:51:17,107 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-18 20:51:17,108 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-18 20:51:17,108 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 20:51:17,108 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-18 20:51:17,108 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-18 20:51:17,110 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-18 20:51:17,111 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-18 20:51:17,111 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-18 20:51:17,111 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-18 20:51:17,112 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-18 20:51:17,112 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-18 20:51:17,112 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f101879d-a4eb-4919-9dec-22065a5ea824/bin/uautomizer-TMbwUNV5ro/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f101879d-a4eb-4919-9dec-22065a5ea824/bin/uautomizer-TMbwUNV5ro Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5744db56abf24224cf1693e3e46d5bede5dd8c74199d1ade21d96d1156922237 [2022-11-18 20:51:17,423 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-18 20:51:17,453 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-18 20:51:17,455 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-18 20:51:17,457 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-18 20:51:17,458 INFO L275 PluginConnector]: CDTParser initialized [2022-11-18 20:51:17,459 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f101879d-a4eb-4919-9dec-22065a5ea824/bin/uautomizer-TMbwUNV5ro/../../sv-benchmarks/c/termination-memory-alloca/mult_array-alloca-2.i [2022-11-18 20:51:17,532 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f101879d-a4eb-4919-9dec-22065a5ea824/bin/uautomizer-TMbwUNV5ro/data/ceb0ae32b/4b07079881da4069ae328c9bbedb5433/FLAG4ae05293e [2022-11-18 20:51:18,255 INFO L306 CDTParser]: Found 1 translation units. [2022-11-18 20:51:18,256 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f101879d-a4eb-4919-9dec-22065a5ea824/sv-benchmarks/c/termination-memory-alloca/mult_array-alloca-2.i [2022-11-18 20:51:18,271 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f101879d-a4eb-4919-9dec-22065a5ea824/bin/uautomizer-TMbwUNV5ro/data/ceb0ae32b/4b07079881da4069ae328c9bbedb5433/FLAG4ae05293e [2022-11-18 20:51:18,547 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f101879d-a4eb-4919-9dec-22065a5ea824/bin/uautomizer-TMbwUNV5ro/data/ceb0ae32b/4b07079881da4069ae328c9bbedb5433 [2022-11-18 20:51:18,551 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-18 20:51:18,553 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-18 20:51:18,555 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-18 20:51:18,556 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-18 20:51:18,560 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-18 20:51:18,561 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 08:51:18" (1/1) ... [2022-11-18 20:51:18,563 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7a7e07a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:51:18, skipping insertion in model container [2022-11-18 20:51:18,563 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 08:51:18" (1/1) ... [2022-11-18 20:51:18,574 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-18 20:51:18,630 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-18 20:51:19,139 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 20:51:19,151 INFO L203 MainTranslator]: Completed pre-run [2022-11-18 20:51:19,220 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 20:51:19,256 INFO L208 MainTranslator]: Completed translation [2022-11-18 20:51:19,257 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:51:19 WrapperNode [2022-11-18 20:51:19,257 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-18 20:51:19,260 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-18 20:51:19,261 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-18 20:51:19,261 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-18 20:51:19,271 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:51:19" (1/1) ... [2022-11-18 20:51:19,300 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:51:19" (1/1) ... [2022-11-18 20:51:19,334 INFO L138 Inliner]: procedures = 110, calls = 13, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 68 [2022-11-18 20:51:19,335 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-18 20:51:19,336 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-18 20:51:19,336 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-18 20:51:19,337 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-18 20:51:19,347 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:51:19" (1/1) ... [2022-11-18 20:51:19,348 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:51:19" (1/1) ... [2022-11-18 20:51:19,364 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:51:19" (1/1) ... [2022-11-18 20:51:19,366 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:51:19" (1/1) ... [2022-11-18 20:51:19,371 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:51:19" (1/1) ... [2022-11-18 20:51:19,386 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:51:19" (1/1) ... [2022-11-18 20:51:19,388 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:51:19" (1/1) ... [2022-11-18 20:51:19,389 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:51:19" (1/1) ... [2022-11-18 20:51:19,391 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-18 20:51:19,392 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-18 20:51:19,392 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-18 20:51:19,393 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-18 20:51:19,400 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:51:19" (1/1) ... [2022-11-18 20:51:19,409 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 20:51:19,422 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f101879d-a4eb-4919-9dec-22065a5ea824/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:51:19,439 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f101879d-a4eb-4919-9dec-22065a5ea824/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-18 20:51:19,463 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f101879d-a4eb-4919-9dec-22065a5ea824/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-18 20:51:19,500 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-18 20:51:19,500 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-18 20:51:19,501 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-18 20:51:19,501 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-18 20:51:19,501 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-18 20:51:19,501 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-18 20:51:19,634 INFO L235 CfgBuilder]: Building ICFG [2022-11-18 20:51:19,637 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-18 20:51:19,885 INFO L276 CfgBuilder]: Performing block encoding [2022-11-18 20:51:19,893 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-18 20:51:19,894 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-18 20:51:19,896 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:51:19 BoogieIcfgContainer [2022-11-18 20:51:19,897 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-18 20:51:19,900 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-18 20:51:19,900 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-18 20:51:19,905 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-18 20:51:19,905 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 08:51:18" (1/3) ... [2022-11-18 20:51:19,906 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@765fb4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 08:51:19, skipping insertion in model container [2022-11-18 20:51:19,917 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:51:19" (2/3) ... [2022-11-18 20:51:19,918 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@765fb4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 08:51:19, skipping insertion in model container [2022-11-18 20:51:19,918 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:51:19" (3/3) ... [2022-11-18 20:51:19,920 INFO L112 eAbstractionObserver]: Analyzing ICFG mult_array-alloca-2.i [2022-11-18 20:51:19,968 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-18 20:51:19,968 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2022-11-18 20:51:20,044 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-18 20:51:20,055 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;@3228cff4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 20:51:20,055 INFO L358 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2022-11-18 20:51:20,061 INFO L276 IsEmpty]: Start isEmpty. Operand has 32 states, 23 states have (on average 1.6521739130434783) internal successors, (38), 31 states have internal predecessors, (38), 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) [2022-11-18 20:51:20,071 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-11-18 20:51:20,071 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:51:20,072 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:51:20,073 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-18 20:51:20,081 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:51:20,082 INFO L85 PathProgramCache]: Analyzing trace with hash 1804966406, now seen corresponding path program 1 times [2022-11-18 20:51:20,094 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:51:20,095 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [666127796] [2022-11-18 20:51:20,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:51:20,096 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:51:20,280 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-18 20:51:20,281 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [437169102] [2022-11-18 20:51:20,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:51:20,281 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:51:20,281 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f101879d-a4eb-4919-9dec-22065a5ea824/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:51:20,286 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f101879d-a4eb-4919-9dec-22065a5ea824/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:51:20,294 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f101879d-a4eb-4919-9dec-22065a5ea824/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-18 20:51:20,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:51:20,427 INFO L263 TraceCheckSpWp]: Trace formula consists of 38 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-18 20:51:20,432 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:51:20,561 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:51:20,561 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 20:51:20,562 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:51:20,562 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [666127796] [2022-11-18 20:51:20,562 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-18 20:51:20,563 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [437169102] [2022-11-18 20:51:20,564 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [437169102] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:51:20,564 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:51:20,564 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 20:51:20,567 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1166887337] [2022-11-18 20:51:20,568 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:51:20,574 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-18 20:51:20,574 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:51:20,617 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-18 20:51:20,617 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-18 20:51:20,620 INFO L87 Difference]: Start difference. First operand has 32 states, 23 states have (on average 1.6521739130434783) internal successors, (38), 31 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 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) [2022-11-18 20:51:20,766 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:51:20,766 INFO L93 Difference]: Finished difference Result 102 states and 119 transitions. [2022-11-18 20:51:20,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-18 20:51:20,770 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 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 7 [2022-11-18 20:51:20,770 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:51:20,780 INFO L225 Difference]: With dead ends: 102 [2022-11-18 20:51:20,780 INFO L226 Difference]: Without dead ends: 74 [2022-11-18 20:51:20,784 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-18 20:51:20,789 INFO L413 NwaCegarLoop]: 23 mSDtfsCounter, 84 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 84 SdHoareTripleChecker+Valid, 59 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 20:51:20,790 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [84 Valid, 59 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-18 20:51:20,812 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2022-11-18 20:51:20,829 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 45. [2022-11-18 20:51:20,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45 states, 37 states have (on average 1.5135135135135136) internal successors, (56), 44 states have internal predecessors, (56), 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) [2022-11-18 20:51:20,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 56 transitions. [2022-11-18 20:51:20,833 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 56 transitions. Word has length 7 [2022-11-18 20:51:20,833 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:51:20,834 INFO L495 AbstractCegarLoop]: Abstraction has 45 states and 56 transitions. [2022-11-18 20:51:20,834 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 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) [2022-11-18 20:51:20,834 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 56 transitions. [2022-11-18 20:51:20,835 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-11-18 20:51:20,835 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:51:20,835 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:51:20,846 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f101879d-a4eb-4919-9dec-22065a5ea824/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-18 20:51:21,037 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f101879d-a4eb-4919-9dec-22065a5ea824/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2022-11-18 20:51:21,037 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-18 20:51:21,038 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:51:21,038 INFO L85 PathProgramCache]: Analyzing trace with hash 1804968328, now seen corresponding path program 1 times [2022-11-18 20:51:21,038 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:51:21,039 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [529520527] [2022-11-18 20:51:21,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:51:21,039 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:51:21,059 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-18 20:51:21,060 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1348479079] [2022-11-18 20:51:21,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:51:21,060 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:51:21,061 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f101879d-a4eb-4919-9dec-22065a5ea824/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:51:21,062 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f101879d-a4eb-4919-9dec-22065a5ea824/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:51:21,072 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f101879d-a4eb-4919-9dec-22065a5ea824/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-18 20:51:21,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:51:21,145 INFO L263 TraceCheckSpWp]: Trace formula consists of 36 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-18 20:51:21,147 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:51:21,214 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:51:21,214 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 20:51:21,214 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:51:21,215 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [529520527] [2022-11-18 20:51:21,215 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-18 20:51:21,215 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1348479079] [2022-11-18 20:51:21,216 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1348479079] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:51:21,216 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:51:21,216 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 20:51:21,217 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [602454208] [2022-11-18 20:51:21,217 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:51:21,218 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-18 20:51:21,218 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:51:21,219 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-18 20:51:21,219 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-18 20:51:21,219 INFO L87 Difference]: Start difference. First operand 45 states and 56 transitions. Second operand has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 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) [2022-11-18 20:51:21,306 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:51:21,307 INFO L93 Difference]: Finished difference Result 68 states and 80 transitions. [2022-11-18 20:51:21,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-18 20:51:21,308 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 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 7 [2022-11-18 20:51:21,308 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:51:21,309 INFO L225 Difference]: With dead ends: 68 [2022-11-18 20:51:21,310 INFO L226 Difference]: Without dead ends: 66 [2022-11-18 20:51:21,310 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-18 20:51:21,312 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 24 mSDsluCounter, 29 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 48 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 20:51:21,313 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 48 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-18 20:51:21,314 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2022-11-18 20:51:21,319 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 45. [2022-11-18 20:51:21,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45 states, 37 states have (on average 1.5135135135135136) internal successors, (56), 44 states have internal predecessors, (56), 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) [2022-11-18 20:51:21,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 56 transitions. [2022-11-18 20:51:21,322 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 56 transitions. Word has length 7 [2022-11-18 20:51:21,322 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:51:21,322 INFO L495 AbstractCegarLoop]: Abstraction has 45 states and 56 transitions. [2022-11-18 20:51:21,323 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 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) [2022-11-18 20:51:21,323 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 56 transitions. [2022-11-18 20:51:21,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-11-18 20:51:21,324 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:51:21,324 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:51:21,339 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f101879d-a4eb-4919-9dec-22065a5ea824/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-18 20:51:21,530 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f101879d-a4eb-4919-9dec-22065a5ea824/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:51:21,531 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-18 20:51:21,532 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:51:21,532 INFO L85 PathProgramCache]: Analyzing trace with hash 1806813448, now seen corresponding path program 1 times [2022-11-18 20:51:21,532 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:51:21,533 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1536533030] [2022-11-18 20:51:21,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:51:21,533 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:51:21,550 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-18 20:51:21,550 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [843404254] [2022-11-18 20:51:21,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:51:21,551 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:51:21,551 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f101879d-a4eb-4919-9dec-22065a5ea824/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:51:21,552 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f101879d-a4eb-4919-9dec-22065a5ea824/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:51:21,575 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f101879d-a4eb-4919-9dec-22065a5ea824/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-18 20:51:21,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:51:21,623 INFO L263 TraceCheckSpWp]: Trace formula consists of 36 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-18 20:51:21,624 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:51:21,661 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:51:21,662 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 20:51:21,662 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:51:21,662 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1536533030] [2022-11-18 20:51:21,662 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-18 20:51:21,663 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [843404254] [2022-11-18 20:51:21,663 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [843404254] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:51:21,663 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:51:21,663 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 20:51:21,664 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1873204837] [2022-11-18 20:51:21,664 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:51:21,664 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-18 20:51:21,665 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:51:21,665 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-18 20:51:21,666 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-18 20:51:21,666 INFO L87 Difference]: Start difference. First operand 45 states and 56 transitions. Second operand has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 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) [2022-11-18 20:51:21,734 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:51:21,734 INFO L93 Difference]: Finished difference Result 83 states and 102 transitions. [2022-11-18 20:51:21,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-18 20:51:21,735 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 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 7 [2022-11-18 20:51:21,736 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:51:21,737 INFO L225 Difference]: With dead ends: 83 [2022-11-18 20:51:21,737 INFO L226 Difference]: Without dead ends: 81 [2022-11-18 20:51:21,738 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-18 20:51:21,739 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 48 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 31 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 20:51:21,740 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 31 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-18 20:51:21,741 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81 states. [2022-11-18 20:51:21,747 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81 to 45. [2022-11-18 20:51:21,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45 states, 37 states have (on average 1.5135135135135136) internal successors, (56), 44 states have internal predecessors, (56), 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) [2022-11-18 20:51:21,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 56 transitions. [2022-11-18 20:51:21,749 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 56 transitions. Word has length 7 [2022-11-18 20:51:21,749 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:51:21,749 INFO L495 AbstractCegarLoop]: Abstraction has 45 states and 56 transitions. [2022-11-18 20:51:21,750 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 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) [2022-11-18 20:51:21,750 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 56 transitions. [2022-11-18 20:51:21,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-11-18 20:51:21,750 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:51:21,751 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:51:21,766 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f101879d-a4eb-4919-9dec-22065a5ea824/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-18 20:51:21,956 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f101879d-a4eb-4919-9dec-22065a5ea824/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:51:21,957 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-18 20:51:21,958 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:51:21,958 INFO L85 PathProgramCache]: Analyzing trace with hash 1806815370, now seen corresponding path program 1 times [2022-11-18 20:51:21,958 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:51:21,958 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [111100310] [2022-11-18 20:51:21,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:51:21,959 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:51:21,980 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-18 20:51:21,981 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [520753278] [2022-11-18 20:51:21,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:51:21,982 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:51:21,983 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f101879d-a4eb-4919-9dec-22065a5ea824/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:51:21,984 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f101879d-a4eb-4919-9dec-22065a5ea824/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:51:22,007 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f101879d-a4eb-4919-9dec-22065a5ea824/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-18 20:51:22,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:51:22,066 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 20:51:22,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:51:22,122 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 20:51:22,123 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-18 20:51:22,124 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 8 remaining) [2022-11-18 20:51:22,126 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 8 remaining) [2022-11-18 20:51:22,127 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 8 remaining) [2022-11-18 20:51:22,127 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 8 remaining) [2022-11-18 20:51:22,127 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 8 remaining) [2022-11-18 20:51:22,128 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 8 remaining) [2022-11-18 20:51:22,128 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 8 remaining) [2022-11-18 20:51:22,130 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 8 remaining) [2022-11-18 20:51:22,144 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f101879d-a4eb-4919-9dec-22065a5ea824/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2022-11-18 20:51:22,337 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f101879d-a4eb-4919-9dec-22065a5ea824/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3 [2022-11-18 20:51:22,340 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2022-11-18 20:51:22,344 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-18 20:51:22,374 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 08:51:22 BoogieIcfgContainer [2022-11-18 20:51:22,375 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-18 20:51:22,375 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-18 20:51:22,376 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-18 20:51:22,376 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-18 20:51:22,377 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:51:19" (3/4) ... [2022-11-18 20:51:22,379 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-11-18 20:51:22,419 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f101879d-a4eb-4919-9dec-22065a5ea824/bin/uautomizer-TMbwUNV5ro/witness.graphml [2022-11-18 20:51:22,419 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-18 20:51:22,420 INFO L158 Benchmark]: Toolchain (without parser) took 3867.65ms. Allocated memory is still 125.8MB. Free memory was 95.0MB in the beginning and 95.8MB in the end (delta: -800.9kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-18 20:51:22,421 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 88.1MB. Free memory is still 45.1MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-18 20:51:22,421 INFO L158 Benchmark]: CACSL2BoogieTranslator took 704.09ms. Allocated memory is still 125.8MB. Free memory was 94.7MB in the beginning and 94.0MB in the end (delta: 715.8kB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2022-11-18 20:51:22,422 INFO L158 Benchmark]: Boogie Procedure Inliner took 75.18ms. Allocated memory is still 125.8MB. Free memory was 94.0MB in the beginning and 92.1MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-18 20:51:22,423 INFO L158 Benchmark]: Boogie Preprocessor took 55.20ms. Allocated memory is still 125.8MB. Free memory was 92.1MB in the beginning and 90.6MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-18 20:51:22,423 INFO L158 Benchmark]: RCFGBuilder took 504.60ms. Allocated memory is still 125.8MB. Free memory was 90.6MB in the beginning and 78.7MB in the end (delta: 11.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-11-18 20:51:22,424 INFO L158 Benchmark]: TraceAbstraction took 2475.10ms. Allocated memory is still 125.8MB. Free memory was 78.1MB in the beginning and 97.9MB in the end (delta: -19.8MB). Peak memory consumption was 26.7MB. Max. memory is 16.1GB. [2022-11-18 20:51:22,424 INFO L158 Benchmark]: Witness Printer took 44.23ms. Allocated memory is still 125.8MB. Free memory was 97.9MB in the beginning and 95.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-18 20:51:22,427 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29ms. Allocated memory is still 88.1MB. Free memory is still 45.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 704.09ms. Allocated memory is still 125.8MB. Free memory was 94.7MB in the beginning and 94.0MB in the end (delta: 715.8kB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 75.18ms. Allocated memory is still 125.8MB. Free memory was 94.0MB in the beginning and 92.1MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 55.20ms. Allocated memory is still 125.8MB. Free memory was 92.1MB in the beginning and 90.6MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 504.60ms. Allocated memory is still 125.8MB. Free memory was 90.6MB in the beginning and 78.7MB in the end (delta: 11.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 2475.10ms. Allocated memory is still 125.8MB. Free memory was 78.1MB in the beginning and 97.9MB in the end (delta: -19.8MB). Peak memory consumption was 26.7MB. Max. memory is 16.1GB. * Witness Printer took 44.23ms. Allocated memory is still 125.8MB. Free memory was 97.9MB in the beginning and 95.8MB 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: 554]: integer overflow possible integer overflow possible We found a FailurePath: [L548] int i, j; [L549] int length = __VERIFIER_nondet_int(); [L550] COND FALSE !(length < 1) VAL [length=1073741824] [L551] int fac = __VERIFIER_nondet_int(); [L552] COND FALSE !(fac < 1) VAL [fac=2, length=1073741824] [L553] int *arr = __builtin_alloca (length*sizeof(int)); VAL [__builtin_alloca (length*sizeof(int))={2:0}, arr={2:0}, fac=2, length=1073741824] [L554] fac*length VAL [__builtin_alloca (length*sizeof(int))={2:0}, arr={2:0}, fac=2, length=1073741824] - UnprovableResult [Line: 554]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - 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: 556]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 559]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 559]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 559]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 559]: 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, 32 locations, 8 error locations. Started 1 CEGAR loops. OverallTime: 2.3s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 156 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 156 mSDsluCounter, 138 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 79 mSDsCounter, 5 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 119 IncrementalHoareTripleChecker+Invalid, 124 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 5 mSolverCounterUnsat, 59 mSDtfsCounter, 119 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 18 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=45occurred in iteration=1, InterpolantAutomatonStates: 12, 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, 3 MinimizatonAttempts, 86 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 28 NumberOfCodeBlocks, 28 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 18 ConstructedInterpolants, 0 QuantifiedInterpolants, 72 SizeOfPredicates, 0 NumberOfNonLiveVariables, 110 ConjunctsInSsa, 13 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 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! [2022-11-18 20:51:22,448 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f101879d-a4eb-4919-9dec-22065a5ea824/bin/uautomizer-TMbwUNV5ro/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)