./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-counterex1a.c --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_5ae35b4d-18df-4699-bd16-a5d0130a9660/bin/utaipan-ByfvJB40ur/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ae35b4d-18df-4699-bd16-a5d0130a9660/bin/utaipan-ByfvJB40ur/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ae35b4d-18df-4699-bd16-a5d0130a9660/bin/utaipan-ByfvJB40ur/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ae35b4d-18df-4699-bd16-a5d0130a9660/bin/utaipan-ByfvJB40ur/config/TaipanReach.xml -i ../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-counterex1a.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ae35b4d-18df-4699-bd16-a5d0130a9660/bin/utaipan-ByfvJB40ur/config/svcomp-Overflow-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ae35b4d-18df-4699-bd16-a5d0130a9660/bin/utaipan-ByfvJB40ur --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 Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 42fd1e2a21bb4aa2f573a30580825a1464ab84c04e62c9bfecea355146dac68c --- 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 [2022-11-26 00:35:54,248 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-26 00:35:54,250 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-26 00:35:54,273 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-26 00:35:54,293 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-26 00:35:54,294 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-26 00:35:54,296 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-26 00:35:54,297 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-26 00:35:54,299 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-26 00:35:54,300 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-26 00:35:54,301 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-26 00:35:54,302 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-26 00:35:54,302 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-26 00:35:54,303 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-26 00:35:54,304 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-26 00:35:54,305 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-26 00:35:54,306 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-26 00:35:54,307 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-26 00:35:54,309 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-26 00:35:54,311 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-26 00:35:54,312 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-26 00:35:54,313 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-26 00:35:54,314 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-26 00:35:54,315 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-26 00:35:54,319 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-26 00:35:54,319 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-26 00:35:54,320 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-26 00:35:54,320 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-26 00:35:54,321 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-26 00:35:54,322 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-26 00:35:54,322 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-26 00:35:54,323 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-26 00:35:54,324 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-26 00:35:54,325 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-26 00:35:54,326 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-26 00:35:54,326 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-26 00:35:54,327 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-26 00:35:54,327 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-26 00:35:54,327 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-26 00:35:54,328 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-26 00:35:54,329 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-26 00:35:54,330 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ae35b4d-18df-4699-bd16-a5d0130a9660/bin/utaipan-ByfvJB40ur/config/svcomp-Overflow-64bit-Taipan_Default.epf [2022-11-26 00:35:54,351 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-26 00:35:54,351 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-26 00:35:54,352 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-26 00:35:54,352 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-26 00:35:54,353 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-26 00:35:54,353 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-26 00:35:54,354 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-26 00:35:54,354 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-26 00:35:54,354 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-26 00:35:54,354 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-26 00:35:54,355 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-26 00:35:54,355 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-26 00:35:54,355 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-26 00:35:54,355 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-26 00:35:54,356 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-26 00:35:54,356 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-26 00:35:54,356 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-26 00:35:54,357 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-26 00:35:54,357 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-26 00:35:54,358 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-26 00:35:54,358 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-26 00:35:54,358 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-26 00:35:54,358 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-26 00:35:54,358 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-26 00:35:54,359 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-26 00:35:54,359 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-26 00:35:54,359 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-26 00:35:54,359 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-26 00:35:54,360 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-26 00:35:54,360 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-26 00:35:54,360 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-26 00:35:54,360 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-26 00:35:54,361 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-26 00:35:54,361 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-26 00:35:54,361 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-26 00:35:54,361 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-26 00:35:54,362 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-26 00:35:54,362 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-26 00:35:54,362 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-26 00:35:54,362 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-26 00:35:54,363 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_5ae35b4d-18df-4699-bd16-a5d0130a9660/bin/utaipan-ByfvJB40ur/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ae35b4d-18df-4699-bd16-a5d0130a9660/bin/utaipan-ByfvJB40ur Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 42fd1e2a21bb4aa2f573a30580825a1464ab84c04e62c9bfecea355146dac68c [2022-11-26 00:35:54,693 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-26 00:35:54,725 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-26 00:35:54,728 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-26 00:35:54,729 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-26 00:35:54,730 INFO L275 PluginConnector]: CDTParser initialized [2022-11-26 00:35:54,731 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ae35b4d-18df-4699-bd16-a5d0130a9660/bin/utaipan-ByfvJB40ur/../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-counterex1a.c [2022-11-26 00:35:57,756 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-26 00:35:57,967 INFO L351 CDTParser]: Found 1 translation units. [2022-11-26 00:35:57,968 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ae35b4d-18df-4699-bd16-a5d0130a9660/sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-counterex1a.c [2022-11-26 00:35:57,974 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ae35b4d-18df-4699-bd16-a5d0130a9660/bin/utaipan-ByfvJB40ur/data/0b0aae287/7b97635d54e8455f9efb042dce6d126b/FLAG21d7c20de [2022-11-26 00:35:57,989 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ae35b4d-18df-4699-bd16-a5d0130a9660/bin/utaipan-ByfvJB40ur/data/0b0aae287/7b97635d54e8455f9efb042dce6d126b [2022-11-26 00:35:57,991 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-26 00:35:57,992 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-26 00:35:57,994 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-26 00:35:57,994 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-26 00:35:57,998 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-26 00:35:57,999 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:35:57" (1/1) ... [2022-11-26 00:35:58,000 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4319a72a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:35:57, skipping insertion in model container [2022-11-26 00:35:58,000 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:35:57" (1/1) ... [2022-11-26 00:35:58,008 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-26 00:35:58,021 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-26 00:35:58,196 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-26 00:35:58,200 INFO L203 MainTranslator]: Completed pre-run [2022-11-26 00:35:58,212 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-26 00:35:58,224 INFO L208 MainTranslator]: Completed translation [2022-11-26 00:35:58,225 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:35:58 WrapperNode [2022-11-26 00:35:58,225 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-26 00:35:58,226 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-26 00:35:58,226 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-26 00:35:58,226 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-26 00:35:58,235 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:35:58" (1/1) ... [2022-11-26 00:35:58,240 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:35:58" (1/1) ... [2022-11-26 00:35:58,262 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 44 [2022-11-26 00:35:58,263 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-26 00:35:58,263 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-26 00:35:58,264 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-26 00:35:58,264 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-26 00:35:58,273 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:35:58" (1/1) ... [2022-11-26 00:35:58,274 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:35:58" (1/1) ... [2022-11-26 00:35:58,275 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:35:58" (1/1) ... [2022-11-26 00:35:58,275 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:35:58" (1/1) ... [2022-11-26 00:35:58,277 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:35:58" (1/1) ... [2022-11-26 00:35:58,282 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:35:58" (1/1) ... [2022-11-26 00:35:58,283 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:35:58" (1/1) ... [2022-11-26 00:35:58,284 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:35:58" (1/1) ... [2022-11-26 00:35:58,285 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-26 00:35:58,286 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-26 00:35:58,287 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-26 00:35:58,287 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-26 00:35:58,288 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:35:58" (1/1) ... [2022-11-26 00:35:58,299 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-26 00:35:58,312 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ae35b4d-18df-4699-bd16-a5d0130a9660/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 00:35:58,335 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ae35b4d-18df-4699-bd16-a5d0130a9660/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-26 00:35:58,355 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ae35b4d-18df-4699-bd16-a5d0130a9660/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-26 00:35:58,387 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-26 00:35:58,387 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-26 00:35:58,464 INFO L235 CfgBuilder]: Building ICFG [2022-11-26 00:35:58,466 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-26 00:35:58,660 INFO L276 CfgBuilder]: Performing block encoding [2022-11-26 00:35:58,704 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-26 00:35:58,712 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-26 00:35:58,715 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:35:58 BoogieIcfgContainer [2022-11-26 00:35:58,716 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-26 00:35:58,720 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-26 00:35:58,721 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-26 00:35:58,724 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-26 00:35:58,725 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 12:35:57" (1/3) ... [2022-11-26 00:35:58,727 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2924910c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 12:35:58, skipping insertion in model container [2022-11-26 00:35:58,727 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:35:58" (2/3) ... [2022-11-26 00:35:58,728 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2924910c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 12:35:58, skipping insertion in model container [2022-11-26 00:35:58,729 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:35:58" (3/3) ... [2022-11-26 00:35:58,740 INFO L112 eAbstractionObserver]: Analyzing ICFG AliasDarteFeautrierGonnord-SAS2010-counterex1a.c [2022-11-26 00:35:58,762 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-26 00:35:58,763 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2022-11-26 00:35:58,839 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-26 00:35:58,847 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=FINITE_AUTOMATA, 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;@41ce9617, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-26 00:35:58,847 INFO L358 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2022-11-26 00:35:58,854 INFO L276 IsEmpty]: Start isEmpty. Operand has 17 states, 10 states have (on average 1.9) internal successors, (19), 16 states have internal predecessors, (19), 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) [2022-11-26 00:35:58,861 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-11-26 00:35:58,861 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:35:58,862 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-11-26 00:35:58,862 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-26 00:35:58,871 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:35:58,872 INFO L85 PathProgramCache]: Analyzing trace with hash 2394684, now seen corresponding path program 1 times [2022-11-26 00:35:58,884 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:35:58,885 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [93814706] [2022-11-26 00:35:58,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:35:58,886 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:35:59,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:35:59,129 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:35:59,130 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:35:59,130 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [93814706] [2022-11-26 00:35:59,131 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [93814706] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:35:59,131 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:35:59,131 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-26 00:35:59,133 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1694563513] [2022-11-26 00:35:59,134 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:35:59,139 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-26 00:35:59,139 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:35:59,185 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-26 00:35:59,186 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 00:35:59,189 INFO L87 Difference]: Start difference. First operand has 17 states, 10 states have (on average 1.9) internal successors, (19), 16 states have internal predecessors, (19), 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 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 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) [2022-11-26 00:35:59,243 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:35:59,244 INFO L93 Difference]: Finished difference Result 19 states and 21 transitions. [2022-11-26 00:35:59,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-26 00:35:59,246 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 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 4 [2022-11-26 00:35:59,247 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:35:59,255 INFO L225 Difference]: With dead ends: 19 [2022-11-26 00:35:59,256 INFO L226 Difference]: Without dead ends: 15 [2022-11-26 00:35:59,259 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 00:35:59,262 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 6 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 15 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-26 00:35:59,264 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 15 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-26 00:35:59,283 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2022-11-26 00:35:59,294 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 14. [2022-11-26 00:35:59,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 10 states have (on average 1.6) internal successors, (16), 13 states have internal predecessors, (16), 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) [2022-11-26 00:35:59,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 16 transitions. [2022-11-26 00:35:59,297 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 16 transitions. Word has length 4 [2022-11-26 00:35:59,298 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:35:59,298 INFO L495 AbstractCegarLoop]: Abstraction has 14 states and 16 transitions. [2022-11-26 00:35:59,298 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 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) [2022-11-26 00:35:59,298 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 16 transitions. [2022-11-26 00:35:59,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-26 00:35:59,299 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:35:59,299 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-26 00:35:59,300 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-26 00:35:59,300 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-26 00:35:59,300 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:35:59,301 INFO L85 PathProgramCache]: Analyzing trace with hash 74235264, now seen corresponding path program 1 times [2022-11-26 00:35:59,301 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:35:59,301 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [75459577] [2022-11-26 00:35:59,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:35:59,302 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:35:59,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:35:59,336 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:35:59,336 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:35:59,336 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [75459577] [2022-11-26 00:35:59,337 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [75459577] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:35:59,337 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:35:59,337 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-26 00:35:59,338 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1227237282] [2022-11-26 00:35:59,338 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:35:59,339 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-26 00:35:59,339 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:35:59,340 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-26 00:35:59,340 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 00:35:59,341 INFO L87 Difference]: Start difference. First operand 14 states and 16 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:35:59,359 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:35:59,359 INFO L93 Difference]: Finished difference Result 14 states and 16 transitions. [2022-11-26 00:35:59,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-26 00:35:59,360 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2022-11-26 00:35:59,360 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:35:59,362 INFO L225 Difference]: With dead ends: 14 [2022-11-26 00:35:59,362 INFO L226 Difference]: Without dead ends: 13 [2022-11-26 00:35:59,363 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 00:35:59,364 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 9 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 8 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-26 00:35:59,365 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 8 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-26 00:35:59,366 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2022-11-26 00:35:59,368 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2022-11-26 00:35:59,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 10 states have (on average 1.5) internal successors, (15), 12 states have internal predecessors, (15), 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) [2022-11-26 00:35:59,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 15 transitions. [2022-11-26 00:35:59,370 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 15 transitions. Word has length 5 [2022-11-26 00:35:59,370 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:35:59,370 INFO L495 AbstractCegarLoop]: Abstraction has 13 states and 15 transitions. [2022-11-26 00:35:59,371 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:35:59,371 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 15 transitions. [2022-11-26 00:35:59,371 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-26 00:35:59,371 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:35:59,372 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-26 00:35:59,372 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-26 00:35:59,372 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-26 00:35:59,373 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:35:59,373 INFO L85 PathProgramCache]: Analyzing trace with hash 74223348, now seen corresponding path program 1 times [2022-11-26 00:35:59,373 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:35:59,374 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [333589681] [2022-11-26 00:35:59,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:35:59,374 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:35:59,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-26 00:35:59,385 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-26 00:35:59,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-26 00:35:59,407 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-11-26 00:35:59,407 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-11-26 00:35:59,408 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 6 remaining) [2022-11-26 00:35:59,411 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 6 remaining) [2022-11-26 00:35:59,411 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 6 remaining) [2022-11-26 00:35:59,412 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 6 remaining) [2022-11-26 00:35:59,412 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 6 remaining) [2022-11-26 00:35:59,412 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 6 remaining) [2022-11-26 00:35:59,413 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-26 00:35:59,417 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2022-11-26 00:35:59,421 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-26 00:35:59,441 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.11 12:35:59 BoogieIcfgContainer [2022-11-26 00:35:59,442 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-26 00:35:59,442 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-26 00:35:59,442 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-26 00:35:59,443 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-26 00:35:59,443 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:35:58" (3/4) ... [2022-11-26 00:35:59,446 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-11-26 00:35:59,508 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ae35b4d-18df-4699-bd16-a5d0130a9660/bin/utaipan-ByfvJB40ur/witness.graphml [2022-11-26 00:35:59,508 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-26 00:35:59,509 INFO L158 Benchmark]: Toolchain (without parser) took 1516.05ms. Allocated memory is still 188.7MB. Free memory was 159.1MB in the beginning and 111.7MB in the end (delta: 47.4MB). Peak memory consumption was 44.2MB. Max. memory is 16.1GB. [2022-11-26 00:35:59,509 INFO L158 Benchmark]: CDTParser took 0.27ms. Allocated memory is still 130.0MB. Free memory is still 99.2MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-26 00:35:59,510 INFO L158 Benchmark]: CACSL2BoogieTranslator took 231.42ms. Allocated memory is still 188.7MB. Free memory was 159.1MB in the beginning and 156.7MB in the end (delta: 2.4MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2022-11-26 00:35:59,510 INFO L158 Benchmark]: Boogie Procedure Inliner took 36.85ms. Allocated memory is still 188.7MB. Free memory was 156.7MB in the beginning and 155.7MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-26 00:35:59,511 INFO L158 Benchmark]: Boogie Preprocessor took 22.18ms. Allocated memory is still 188.7MB. Free memory was 155.7MB in the beginning and 154.6MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-26 00:35:59,511 INFO L158 Benchmark]: RCFGBuilder took 429.86ms. Allocated memory is still 188.7MB. Free memory was 154.6MB in the beginning and 143.0MB in the end (delta: 11.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-26 00:35:59,512 INFO L158 Benchmark]: TraceAbstraction took 721.31ms. Allocated memory is still 188.7MB. Free memory was 142.0MB in the beginning and 112.7MB in the end (delta: 29.4MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. [2022-11-26 00:35:59,513 INFO L158 Benchmark]: Witness Printer took 65.65ms. Allocated memory is still 188.7MB. Free memory was 112.7MB in the beginning and 111.7MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-26 00:35:59,531 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27ms. Allocated memory is still 130.0MB. Free memory is still 99.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 231.42ms. Allocated memory is still 188.7MB. Free memory was 159.1MB in the beginning and 156.7MB in the end (delta: 2.4MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 36.85ms. Allocated memory is still 188.7MB. Free memory was 156.7MB in the beginning and 155.7MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 22.18ms. Allocated memory is still 188.7MB. Free memory was 155.7MB in the beginning and 154.6MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 429.86ms. Allocated memory is still 188.7MB. Free memory was 154.6MB in the beginning and 143.0MB in the end (delta: 11.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 721.31ms. Allocated memory is still 188.7MB. Free memory was 142.0MB in the beginning and 112.7MB in the end (delta: 29.4MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. * Witness Printer took 65.65ms. Allocated memory is still 188.7MB. Free memory was 112.7MB in the beginning and 111.7MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 21]: integer overflow possible integer overflow possible We found a FailurePath: [L14] int x, y, n, b; [L15] n = __VERIFIER_nondet_int() [L16] b = __VERIFIER_nondet_int() [L17] x = __VERIFIER_nondet_int() [L18] y = __VERIFIER_nondet_int() [L19] COND TRUE x >= 0 && 0 <= y && y <= n VAL [b=0, n=2147483647, x=0, y=2147483647] [L20] COND TRUE b == 0 VAL [b=0, n=2147483647, x=0, y=2147483647] [L21] y + 1 VAL [b=0, n=2147483647, x=0, y=2147483647] - UnprovableResult [Line: 21]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 26]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 26]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 28]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 28]: 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, 17 locations, 6 error locations. Started 1 CEGAR loops. OverallTime: 0.6s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 15 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 15 mSDsluCounter, 23 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 6 mSDsCounter, 4 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 20 IncrementalHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 4 mSolverCounterUnsat, 17 mSDtfsCounter, 20 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=17occurred in iteration=0, InterpolantAutomatonStates: 6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 14 NumberOfCodeBlocks, 14 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 7 ConstructedInterpolants, 0 QuantifiedInterpolants, 19 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2022-11-26 00:35:59,568 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ae35b4d-18df-4699-bd16-a5d0130a9660/bin/utaipan-ByfvJB40ur/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)