./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/fermat1-ll_valuebound1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version cf1a7837 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_6918e36a-4002-4767-9453-97b44012506e/bin/utaipan-verify-NcY6lQBIFX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6918e36a-4002-4767-9453-97b44012506e/bin/utaipan-verify-NcY6lQBIFX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6918e36a-4002-4767-9453-97b44012506e/bin/utaipan-verify-NcY6lQBIFX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6918e36a-4002-4767-9453-97b44012506e/bin/utaipan-verify-NcY6lQBIFX/config/TaipanReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/fermat1-ll_valuebound1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6918e36a-4002-4767-9453-97b44012506e/bin/utaipan-verify-NcY6lQBIFX/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6918e36a-4002-4767-9453-97b44012506e/bin/utaipan-verify-NcY6lQBIFX --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 92e6df76ce1206795a3a206ec7de3a20b30db31ab661efba7e1901708b9ce34a --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-12 00:52:46,703 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 00:52:46,837 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6918e36a-4002-4767-9453-97b44012506e/bin/utaipan-verify-NcY6lQBIFX/config/svcomp-Reach-32bit-Taipan_Default.epf [2023-11-12 00:52:46,844 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 00:52:46,846 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 00:52:46,888 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 00:52:46,889 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 00:52:46,890 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 00:52:46,891 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 00:52:46,896 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-12 00:52:46,897 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-12 00:52:46,898 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-12 00:52:46,899 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-12 00:52:46,901 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-12 00:52:46,901 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-12 00:52:46,902 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-12 00:52:46,902 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-12 00:52:46,903 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-12 00:52:46,903 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-12 00:52:46,904 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-12 00:52:46,904 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-12 00:52:46,905 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-12 00:52:46,906 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 00:52:46,907 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-12 00:52:46,907 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-12 00:52:46,908 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-12 00:52:46,908 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-12 00:52:46,909 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 00:52:46,909 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-12 00:52:46,910 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 00:52:46,911 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-12 00:52:46,911 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-12 00:52:46,912 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-12 00:52:46,912 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 00:52:46,912 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 00:52:46,913 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-12 00:52:46,913 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 00:52:46,913 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 00:52:46,914 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 00:52:46,914 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-12 00:52:46,914 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-12 00:52:46,915 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-12 00:52:46,915 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-12 00:52:46,915 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-12 00:52:46,916 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-12 00:52:46,916 INFO L153 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_6918e36a-4002-4767-9453-97b44012506e/bin/utaipan-verify-NcY6lQBIFX/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6918e36a-4002-4767-9453-97b44012506e/bin/utaipan-verify-NcY6lQBIFX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 92e6df76ce1206795a3a206ec7de3a20b30db31ab661efba7e1901708b9ce34a [2023-11-12 00:52:47,292 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 00:52:47,331 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 00:52:47,334 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 00:52:47,335 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 00:52:47,336 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 00:52:47,338 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6918e36a-4002-4767-9453-97b44012506e/bin/utaipan-verify-NcY6lQBIFX/../../sv-benchmarks/c/nla-digbench-scaling/fermat1-ll_valuebound1.c [2023-11-12 00:52:50,544 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 00:52:50,899 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 00:52:50,900 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6918e36a-4002-4767-9453-97b44012506e/sv-benchmarks/c/nla-digbench-scaling/fermat1-ll_valuebound1.c [2023-11-12 00:52:50,911 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6918e36a-4002-4767-9453-97b44012506e/bin/utaipan-verify-NcY6lQBIFX/data/978f8f3da/82504d6ec0a2426bbda467421c5c498e/FLAGa8bc14be0 [2023-11-12 00:52:50,924 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6918e36a-4002-4767-9453-97b44012506e/bin/utaipan-verify-NcY6lQBIFX/data/978f8f3da/82504d6ec0a2426bbda467421c5c498e [2023-11-12 00:52:50,927 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 00:52:50,928 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 00:52:50,930 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 00:52:50,930 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 00:52:50,935 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 00:52:50,936 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:52:50" (1/1) ... [2023-11-12 00:52:50,937 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6f663810 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:52:50, skipping insertion in model container [2023-11-12 00:52:50,938 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:52:50" (1/1) ... [2023-11-12 00:52:50,960 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 00:52:51,136 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6918e36a-4002-4767-9453-97b44012506e/sv-benchmarks/c/nla-digbench-scaling/fermat1-ll_valuebound1.c[535,548] [2023-11-12 00:52:51,185 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:52:51,201 INFO L202 MainTranslator]: Completed pre-run [2023-11-12 00:52:51,220 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6918e36a-4002-4767-9453-97b44012506e/sv-benchmarks/c/nla-digbench-scaling/fermat1-ll_valuebound1.c[535,548] [2023-11-12 00:52:51,249 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:52:51,270 INFO L206 MainTranslator]: Completed translation [2023-11-12 00:52:51,271 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:52:51 WrapperNode [2023-11-12 00:52:51,271 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 00:52:51,273 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-12 00:52:51,273 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-12 00:52:51,273 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-12 00:52:51,282 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:52:51" (1/1) ... [2023-11-12 00:52:51,289 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:52:51" (1/1) ... [2023-11-12 00:52:51,321 INFO L138 Inliner]: procedures = 14, calls = 15, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 57 [2023-11-12 00:52:51,323 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-12 00:52:51,323 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-12 00:52:51,323 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-12 00:52:51,324 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-12 00:52:51,332 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:52:51" (1/1) ... [2023-11-12 00:52:51,332 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:52:51" (1/1) ... [2023-11-12 00:52:51,334 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:52:51" (1/1) ... [2023-11-12 00:52:51,334 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:52:51" (1/1) ... [2023-11-12 00:52:51,339 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:52:51" (1/1) ... [2023-11-12 00:52:51,343 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:52:51" (1/1) ... [2023-11-12 00:52:51,351 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:52:51" (1/1) ... [2023-11-12 00:52:51,352 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:52:51" (1/1) ... [2023-11-12 00:52:51,354 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-12 00:52:51,356 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-12 00:52:51,356 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-12 00:52:51,356 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-12 00:52:51,357 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:52:51" (1/1) ... [2023-11-12 00:52:51,366 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 00:52:51,385 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6918e36a-4002-4767-9453-97b44012506e/bin/utaipan-verify-NcY6lQBIFX/z3 [2023-11-12 00:52:51,400 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6918e36a-4002-4767-9453-97b44012506e/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-12 00:52:51,426 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6918e36a-4002-4767-9453-97b44012506e/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-12 00:52:51,455 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-12 00:52:51,455 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-12 00:52:51,455 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-12 00:52:51,456 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-12 00:52:51,456 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-12 00:52:51,456 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-12 00:52:51,459 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-12 00:52:51,460 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-12 00:52:51,541 INFO L236 CfgBuilder]: Building ICFG [2023-11-12 00:52:51,544 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-12 00:52:51,754 INFO L277 CfgBuilder]: Performing block encoding [2023-11-12 00:52:51,783 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-12 00:52:51,784 INFO L302 CfgBuilder]: Removed 3 assume(true) statements. [2023-11-12 00:52:51,787 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:52:51 BoogieIcfgContainer [2023-11-12 00:52:51,787 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-12 00:52:51,790 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-12 00:52:51,790 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-12 00:52:51,795 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-12 00:52:51,795 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 12:52:50" (1/3) ... [2023-11-12 00:52:51,796 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@358cb5e2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:52:51, skipping insertion in model container [2023-11-12 00:52:51,796 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:52:51" (2/3) ... [2023-11-12 00:52:51,797 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@358cb5e2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:52:51, skipping insertion in model container [2023-11-12 00:52:51,797 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:52:51" (3/3) ... [2023-11-12 00:52:51,799 INFO L112 eAbstractionObserver]: Analyzing ICFG fermat1-ll_valuebound1.c [2023-11-12 00:52:51,819 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-12 00:52:51,819 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-12 00:52:51,871 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-12 00:52:51,879 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=LoopHeads, 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;@4249bc3a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-12 00:52:51,880 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-12 00:52:51,885 INFO L276 IsEmpty]: Start isEmpty. Operand has 27 states, 15 states have (on average 1.5333333333333334) internal successors, (23), 16 states have internal predecessors, (23), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2023-11-12 00:52:51,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2023-11-12 00:52:51,893 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:52:51,894 INFO L195 NwaCegarLoop]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 00:52:51,894 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 00:52:51,900 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:52:51,900 INFO L85 PathProgramCache]: Analyzing trace with hash 1333631252, now seen corresponding path program 1 times [2023-11-12 00:52:51,909 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:52:51,910 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [602903817] [2023-11-12 00:52:51,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:52:51,911 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:52:52,047 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-12 00:52:52,048 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [849368085] [2023-11-12 00:52:52,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:52:52,049 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 00:52:52,049 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6918e36a-4002-4767-9453-97b44012506e/bin/utaipan-verify-NcY6lQBIFX/z3 [2023-11-12 00:52:52,053 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6918e36a-4002-4767-9453-97b44012506e/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 00:52:52,088 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6918e36a-4002-4767-9453-97b44012506e/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-12 00:52:52,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:52:52,206 INFO L262 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 27 conjunts are in the unsatisfiable core [2023-11-12 00:52:52,215 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 00:52:52,923 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2023-11-12 00:52:52,924 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-12 00:52:53,097 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-12 00:52:53,097 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:52:53,098 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [602903817] [2023-11-12 00:52:53,098 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-12 00:52:53,099 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [849368085] [2023-11-12 00:52:53,099 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [849368085] provided 1 perfect and 1 imperfect interpolant sequences [2023-11-12 00:52:53,100 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-12 00:52:53,100 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 12 [2023-11-12 00:52:53,103 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1462890734] [2023-11-12 00:52:53,103 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:52:53,108 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-12 00:52:53,109 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 00:52:53,155 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-12 00:52:53,156 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2023-11-12 00:52:53,158 INFO L87 Difference]: Start difference. First operand has 27 states, 15 states have (on average 1.5333333333333334) internal successors, (23), 16 states have internal predecessors, (23), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) Second operand has 5 states, 5 states have (on average 1.6) internal successors, (8), 4 states have internal predecessors, (8), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2023-11-12 00:52:53,410 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:52:53,410 INFO L93 Difference]: Finished difference Result 49 states and 74 transitions. [2023-11-12 00:52:53,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-12 00:52:53,413 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 1.6) internal successors, (8), 4 states have internal predecessors, (8), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 20 [2023-11-12 00:52:53,413 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:52:53,422 INFO L225 Difference]: With dead ends: 49 [2023-11-12 00:52:53,422 INFO L226 Difference]: Without dead ends: 27 [2023-11-12 00:52:53,428 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2023-11-12 00:52:53,432 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 12 mSDsluCounter, 53 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 74 SdHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-12 00:52:53,434 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 74 Invalid, 55 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-12 00:52:53,452 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2023-11-12 00:52:53,478 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2023-11-12 00:52:53,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 16 states have (on average 1.1875) internal successors, (19), 16 states have internal predecessors, (19), 8 states have call successors, (8), 3 states have call predecessors, (8), 2 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2023-11-12 00:52:53,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 34 transitions. [2023-11-12 00:52:53,483 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 34 transitions. Word has length 20 [2023-11-12 00:52:53,485 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:52:53,485 INFO L495 AbstractCegarLoop]: Abstraction has 27 states and 34 transitions. [2023-11-12 00:52:53,486 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 1.6) internal successors, (8), 4 states have internal predecessors, (8), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2023-11-12 00:52:53,486 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 34 transitions. [2023-11-12 00:52:53,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2023-11-12 00:52:53,488 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:52:53,488 INFO L195 NwaCegarLoop]: trace histogram [4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 00:52:53,502 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6918e36a-4002-4767-9453-97b44012506e/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-12 00:52:53,695 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6918e36a-4002-4767-9453-97b44012506e/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2023-11-12 00:52:53,695 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 00:52:53,696 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:52:53,696 INFO L85 PathProgramCache]: Analyzing trace with hash 1820027827, now seen corresponding path program 1 times [2023-11-12 00:52:53,697 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:52:53,697 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [295620947] [2023-11-12 00:52:53,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:52:53,698 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:52:53,733 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-12 00:52:53,741 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1829032205] [2023-11-12 00:52:53,742 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:52:53,758 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 00:52:53,758 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6918e36a-4002-4767-9453-97b44012506e/bin/utaipan-verify-NcY6lQBIFX/z3 [2023-11-12 00:52:53,760 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6918e36a-4002-4767-9453-97b44012506e/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 00:52:53,774 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6918e36a-4002-4767-9453-97b44012506e/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-12 00:52:53,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:52:53,855 INFO L262 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 13 conjunts are in the unsatisfiable core [2023-11-12 00:52:53,859 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 00:52:53,983 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-12 00:52:53,983 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-12 00:52:54,163 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-12 00:52:54,165 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:52:54,165 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [295620947] [2023-11-12 00:52:54,165 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-12 00:52:54,166 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1829032205] [2023-11-12 00:52:54,168 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1829032205] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-12 00:52:54,168 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1188409881] [2023-11-12 00:52:54,205 INFO L159 IcfgInterpreter]: Started Sifa with 19 locations of interest [2023-11-12 00:52:54,206 INFO L166 IcfgInterpreter]: Building call graph [2023-11-12 00:52:54,209 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-11-12 00:52:54,215 INFO L176 IcfgInterpreter]: Starting interpretation [2023-11-12 00:52:54,216 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-11-12 00:52:55,478 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 52 for LOIs [2023-11-12 00:52:55,584 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 3 for LOIs [2023-11-12 00:52:55,586 INFO L180 IcfgInterpreter]: Interpretation finished [2023-11-12 00:52:56,584 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [1188409881] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:52:56,584 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2023-11-12 00:52:56,585 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [8, 7] total 21 [2023-11-12 00:52:56,585 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [759702261] [2023-11-12 00:52:56,586 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:52:56,586 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-12 00:52:56,587 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 00:52:56,588 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-12 00:52:56,588 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=83, Invalid=337, Unknown=0, NotChecked=0, Total=420 [2023-11-12 00:52:56,588 INFO L87 Difference]: Start difference. First operand 27 states and 34 transitions. Second operand has 12 states, 8 states have (on average 1.375) internal successors, (11), 6 states have internal predecessors, (11), 5 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 4 states have call predecessors, (5), 5 states have call successors, (5) [2023-11-12 00:52:56,761 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:52:56,761 INFO L93 Difference]: Finished difference Result 37 states and 45 transitions. [2023-11-12 00:52:56,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-12 00:52:56,762 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 8 states have (on average 1.375) internal successors, (11), 6 states have internal predecessors, (11), 5 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 4 states have call predecessors, (5), 5 states have call successors, (5) Word has length 26 [2023-11-12 00:52:56,763 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:52:56,763 INFO L225 Difference]: With dead ends: 37 [2023-11-12 00:52:56,763 INFO L226 Difference]: Without dead ends: 0 [2023-11-12 00:52:56,764 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 54 SyntacticMatches, 3 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 97 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=83, Invalid=337, Unknown=0, NotChecked=0, Total=420 [2023-11-12 00:52:56,766 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 0 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 18 SdHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-12 00:52:56,766 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 18 Invalid, 82 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-12 00:52:56,768 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-11-12 00:52:56,768 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-11-12 00:52:56,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 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) [2023-11-12 00:52:56,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-11-12 00:52:56,769 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 26 [2023-11-12 00:52:56,769 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:52:56,769 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-12 00:52:56,770 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 8 states have (on average 1.375) internal successors, (11), 6 states have internal predecessors, (11), 5 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 4 states have call predecessors, (5), 5 states have call successors, (5) [2023-11-12 00:52:56,770 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-11-12 00:52:56,770 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-12 00:52:56,773 INFO L805 garLoopResultBuilder]: Registering result SAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-12 00:52:56,790 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6918e36a-4002-4767-9453-97b44012506e/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-12 00:52:56,985 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6918e36a-4002-4767-9453-97b44012506e/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 00:52:56,987 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-11-12 00:52:57,532 INFO L895 garLoopResultBuilder]: At program point L35-2(lines 35 55) the Hoare annotation is: (let ((.cse1 (select |#memory_int| 1)) (.cse0 (* 2 |ULTIMATE.start_main_~R~0#1|))) (and (= (select |#length| 3) 12) (<= 1 |#StackHeapBarrier|) (= 13 (select |#length| 2)) (<= (+ (* |ULTIMATE.start_main_~R~0#1| |ULTIMATE.start_main_~R~0#1|) 2) (+ .cse0 |ULTIMATE.start_main_~A~0#1|)) (= |ULTIMATE.start_main_~v~0#1| 1) (= 2 (select |#length| 1)) (= (select |#valid| 3) 1) (<= |ULTIMATE.start_main_~A~0#1| 1) (= (select |#valid| 1) 1) (= (+ (* |ULTIMATE.start_main_~u~0#1| |ULTIMATE.start_main_~u~0#1|) 1) (+ (* |ULTIMATE.start_main_~A~0#1| 4) (* |ULTIMATE.start_main_~r~0#1| 4) (* 2 |ULTIMATE.start_main_~u~0#1|))) (= (select |#valid| 0) 0) (= (select |#valid| 2) 1) (= (select .cse1 0) 48) (= (select .cse1 1) 0) (= (+ .cse0 1) |ULTIMATE.start_main_~u~0#1|))) [2023-11-12 00:52:57,532 INFO L895 garLoopResultBuilder]: At program point L23(line 23) the Hoare annotation is: (let ((.cse0 (select |#memory_int| 1))) (and (<= 0 (+ |ULTIMATE.start_main_~A~0#1| 2147483648)) (= (select |#length| 3) 12) (<= 1 |#StackHeapBarrier|) (= 13 (select |#length| 2)) (= 2 (select |#length| 1)) (= (select |#valid| 3) 1) (= (select |#valid| 1) 1) (<= |ULTIMATE.start_main_~A~0#1| 2147483647) (= (select |#valid| 0) 0) (= (select |#valid| 2) 1) (= (select .cse0 0) 48) (= (select .cse0 1) 0))) [2023-11-12 00:52:57,533 INFO L899 garLoopResultBuilder]: For program point L23-1(line 23) no Hoare annotation was computed. [2023-11-12 00:52:57,533 INFO L895 garLoopResultBuilder]: At program point L48-1(lines 48 54) the Hoare annotation is: false [2023-11-12 00:52:57,533 INFO L895 garLoopResultBuilder]: At program point L48-2(lines 35 55) the Hoare annotation is: (let ((.cse1 (select |#memory_int| 1)) (.cse0 (* 2 |ULTIMATE.start_main_~R~0#1|))) (and (= (select |#length| 3) 12) (<= 1 |#StackHeapBarrier|) (= 13 (select |#length| 2)) (<= (+ (* |ULTIMATE.start_main_~R~0#1| |ULTIMATE.start_main_~R~0#1|) 2) (+ .cse0 |ULTIMATE.start_main_~A~0#1|)) (= |ULTIMATE.start_main_~v~0#1| 1) (= 2 (select |#length| 1)) (= (select |#valid| 3) 1) (<= |ULTIMATE.start_main_~A~0#1| 1) (= (select |#valid| 1) 1) (= (+ (* |ULTIMATE.start_main_~u~0#1| |ULTIMATE.start_main_~u~0#1|) 1) (+ (* |ULTIMATE.start_main_~A~0#1| 4) (* |ULTIMATE.start_main_~r~0#1| 4) (* 2 |ULTIMATE.start_main_~u~0#1|))) (= (select |#valid| 0) 0) (= (select |#valid| 2) 1) (= (select .cse1 0) 48) (= (select .cse1 1) 0) (= (+ .cse0 1) |ULTIMATE.start_main_~u~0#1|))) [2023-11-12 00:52:57,533 INFO L895 garLoopResultBuilder]: At program point L40-2(lines 40 46) the Hoare annotation is: false [2023-11-12 00:52:57,533 INFO L895 garLoopResultBuilder]: At program point L36(line 36) the Hoare annotation is: (let ((.cse1 (select |#memory_int| 1)) (.cse0 (* 2 |ULTIMATE.start_main_~R~0#1|))) (and (= (select |#length| 3) 12) (<= 1 |#StackHeapBarrier|) (= 13 (select |#length| 2)) (<= (+ (* |ULTIMATE.start_main_~R~0#1| |ULTIMATE.start_main_~R~0#1|) 2) (+ .cse0 |ULTIMATE.start_main_~A~0#1|)) (= |ULTIMATE.start_main_~v~0#1| 1) (= 2 (select |#length| 1)) (= (select |#valid| 3) 1) (<= |ULTIMATE.start_main_~A~0#1| 1) (= (select |#valid| 1) 1) (= (+ (* |ULTIMATE.start_main_~u~0#1| |ULTIMATE.start_main_~u~0#1|) 1) (+ (* |ULTIMATE.start_main_~A~0#1| 4) (* |ULTIMATE.start_main_~r~0#1| 4) (* 2 |ULTIMATE.start_main_~u~0#1|))) (= (select |#valid| 0) 0) (= (select |#valid| 2) 1) (= (select .cse1 0) 48) (= (select .cse1 1) 0) (= (+ .cse0 1) |ULTIMATE.start_main_~u~0#1|))) [2023-11-12 00:52:57,534 INFO L899 garLoopResultBuilder]: For program point L36-1(lines 35 55) no Hoare annotation was computed. [2023-11-12 00:52:57,534 INFO L899 garLoopResultBuilder]: For program point L28(line 28) no Hoare annotation was computed. [2023-11-12 00:52:57,534 INFO L899 garLoopResultBuilder]: For program point L57(line 57) no Hoare annotation was computed. [2023-11-12 00:52:57,534 INFO L895 garLoopResultBuilder]: At program point L49(line 49) the Hoare annotation is: false [2023-11-12 00:52:57,534 INFO L899 garLoopResultBuilder]: For program point L49-1(lines 48 54) no Hoare annotation was computed. [2023-11-12 00:52:57,534 INFO L895 garLoopResultBuilder]: At program point L41(line 41) the Hoare annotation is: false [2023-11-12 00:52:57,534 INFO L899 garLoopResultBuilder]: For program point L41-1(lines 40 46) no Hoare annotation was computed. [2023-11-12 00:52:57,534 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-11-12 00:52:57,535 INFO L895 garLoopResultBuilder]: At program point L25(line 25) the Hoare annotation is: (let ((.cse0 (select |#memory_int| 1))) (and (= (select |#length| 3) 12) (<= 1 |#StackHeapBarrier|) (<= 0 (+ |ULTIMATE.start_main_~R~0#1| 2147483648)) (<= |ULTIMATE.start_main_~R~0#1| 2147483647) (= 13 (select |#length| 2)) (= 2 (select |#length| 1)) (= (select |#valid| 3) 1) (<= |ULTIMATE.start_main_~A~0#1| 1) (= (select |#valid| 1) 1) (= (select |#valid| 0) 0) (= (select |#valid| 2) 1) (= (select .cse0 0) 48) (<= 0 |ULTIMATE.start_main_~A~0#1|) (= (select .cse0 1) 0))) [2023-11-12 00:52:57,535 INFO L895 garLoopResultBuilder]: At program point L25-1(line 25) the Hoare annotation is: (let ((.cse0 (select |#memory_int| 1))) (and (<= 0 |ULTIMATE.start_main_~R~0#1|) (= (select |#length| 3) 12) (<= 1 |#StackHeapBarrier|) (= 13 (select |#length| 2)) (= 2 (select |#length| 1)) (= (select |#valid| 3) 1) (<= |ULTIMATE.start_main_~A~0#1| 1) (= (select |#valid| 1) 1) (= (select |#valid| 0) 0) (= (select |#valid| 2) 1) (= (select .cse0 0) 48) (<= |ULTIMATE.start_main_~R~0#1| 1) (<= 0 |ULTIMATE.start_main_~A~0#1|) (= (select .cse0 1) 0))) [2023-11-12 00:52:57,535 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-11-12 00:52:57,535 INFO L895 garLoopResultBuilder]: At program point L26(line 26) the Hoare annotation is: (let ((.cse0 (select |#memory_int| 1))) (and (= (select |#length| 3) 12) (<= 1 |#StackHeapBarrier|) (= 13 (select |#length| 2)) (<= (+ (* |ULTIMATE.start_main_~R~0#1| |ULTIMATE.start_main_~R~0#1|) 2) (+ (* 2 |ULTIMATE.start_main_~R~0#1|) |ULTIMATE.start_main_~A~0#1|)) (= 2 (select |#length| 1)) (= (select |#valid| 3) 1) (<= |ULTIMATE.start_main_~A~0#1| 1) (= (select |#valid| 1) 1) (= (select |#valid| 0) 0) (= (select |#valid| 2) 1) (= (select .cse0 0) 48) (= (select .cse0 1) 0))) [2023-11-12 00:52:57,536 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 8 10) the Hoare annotation is: true [2023-11-12 00:52:57,536 INFO L899 garLoopResultBuilder]: For program point assume_abort_if_notEXIT(lines 8 10) no Hoare annotation was computed. [2023-11-12 00:52:57,536 INFO L899 garLoopResultBuilder]: For program point L13(lines 13 14) no Hoare annotation was computed. [2023-11-12 00:52:57,537 INFO L899 garLoopResultBuilder]: For program point L12(lines 12 15) no Hoare annotation was computed. [2023-11-12 00:52:57,537 INFO L899 garLoopResultBuilder]: For program point L12-2(lines 11 17) no Hoare annotation was computed. [2023-11-12 00:52:57,537 INFO L899 garLoopResultBuilder]: For program point __VERIFIER_assertEXIT(lines 11 17) no Hoare annotation was computed. [2023-11-12 00:52:57,537 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 11 17) the Hoare annotation is: true [2023-11-12 00:52:57,538 INFO L899 garLoopResultBuilder]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 14) no Hoare annotation was computed. [2023-11-12 00:52:57,541 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2023-11-12 00:52:57,543 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-11-12 00:52:57,558 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #length[3] could not be translated [2023-11-12 00:52:57,560 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #length[2] could not be translated [2023-11-12 00:52:57,563 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #length[1] could not be translated [2023-11-12 00:52:57,563 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #valid[3] could not be translated [2023-11-12 00:52:57,563 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #valid[1] could not be translated [2023-11-12 00:52:57,564 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #valid[0] could not be translated [2023-11-12 00:52:57,564 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #valid[2] could not be translated [2023-11-12 00:52:57,564 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int[1][0] could not be translated [2023-11-12 00:52:57,564 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int[1][1] could not be translated [2023-11-12 00:52:57,566 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #length[3] could not be translated [2023-11-12 00:52:57,566 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #length[2] could not be translated [2023-11-12 00:52:57,566 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #length[1] could not be translated [2023-11-12 00:52:57,567 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #valid[3] could not be translated [2023-11-12 00:52:57,567 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #valid[1] could not be translated [2023-11-12 00:52:57,568 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #valid[0] could not be translated [2023-11-12 00:52:57,569 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #valid[2] could not be translated [2023-11-12 00:52:57,569 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int[1][0] could not be translated [2023-11-12 00:52:57,569 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int[1][1] could not be translated [2023-11-12 00:52:57,571 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.11 12:52:57 BoogieIcfgContainer [2023-11-12 00:52:57,571 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-12 00:52:57,572 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-12 00:52:57,572 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-12 00:52:57,572 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-12 00:52:57,573 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:52:51" (3/4) ... [2023-11-12 00:52:57,575 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-12 00:52:57,578 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure assume_abort_if_not [2023-11-12 00:52:57,579 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2023-11-12 00:52:57,585 INFO L944 BoogieBacktranslator]: Reduced CFG by removing 19 nodes and edges [2023-11-12 00:52:57,586 INFO L944 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2023-11-12 00:52:57,586 INFO L944 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-12 00:52:57,586 INFO L944 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-12 00:52:57,708 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6918e36a-4002-4767-9453-97b44012506e/bin/utaipan-verify-NcY6lQBIFX/witness.graphml [2023-11-12 00:52:57,711 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6918e36a-4002-4767-9453-97b44012506e/bin/utaipan-verify-NcY6lQBIFX/witness.yml [2023-11-12 00:52:57,711 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-12 00:52:57,712 INFO L158 Benchmark]: Toolchain (without parser) took 6783.46ms. Allocated memory was 142.6MB in the beginning and 207.6MB in the end (delta: 65.0MB). Free memory was 111.7MB in the beginning and 99.6MB in the end (delta: 12.1MB). Peak memory consumption was 79.1MB. Max. memory is 16.1GB. [2023-11-12 00:52:57,712 INFO L158 Benchmark]: CDTParser took 0.35ms. Allocated memory is still 113.2MB. Free memory is still 69.0MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-12 00:52:57,713 INFO L158 Benchmark]: CACSL2BoogieTranslator took 341.90ms. Allocated memory is still 142.6MB. Free memory was 111.7MB in the beginning and 100.7MB in the end (delta: 11.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-12 00:52:57,713 INFO L158 Benchmark]: Boogie Procedure Inliner took 49.66ms. Allocated memory is still 142.6MB. Free memory was 100.7MB in the beginning and 99.2MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-12 00:52:57,713 INFO L158 Benchmark]: Boogie Preprocessor took 31.37ms. Allocated memory is still 142.6MB. Free memory was 99.2MB in the beginning and 98.0MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-12 00:52:57,714 INFO L158 Benchmark]: RCFGBuilder took 431.75ms. Allocated memory is still 142.6MB. Free memory was 98.0MB in the beginning and 85.7MB in the end (delta: 12.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-12 00:52:57,714 INFO L158 Benchmark]: TraceAbstraction took 5781.22ms. Allocated memory was 142.6MB in the beginning and 207.6MB in the end (delta: 65.0MB). Free memory was 84.9MB in the beginning and 104.8MB in the end (delta: -19.9MB). Peak memory consumption was 45.6MB. Max. memory is 16.1GB. [2023-11-12 00:52:57,715 INFO L158 Benchmark]: Witness Printer took 139.06ms. Allocated memory is still 207.6MB. Free memory was 104.8MB in the beginning and 99.6MB in the end (delta: 5.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2023-11-12 00:52:57,718 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35ms. Allocated memory is still 113.2MB. Free memory is still 69.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 341.90ms. Allocated memory is still 142.6MB. Free memory was 111.7MB in the beginning and 100.7MB in the end (delta: 11.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 49.66ms. Allocated memory is still 142.6MB. Free memory was 100.7MB in the beginning and 99.2MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 31.37ms. Allocated memory is still 142.6MB. Free memory was 99.2MB in the beginning and 98.0MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 431.75ms. Allocated memory is still 142.6MB. Free memory was 98.0MB in the beginning and 85.7MB in the end (delta: 12.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 5781.22ms. Allocated memory was 142.6MB in the beginning and 207.6MB in the end (delta: 65.0MB). Free memory was 84.9MB in the beginning and 104.8MB in the end (delta: -19.9MB). Peak memory consumption was 45.6MB. Max. memory is 16.1GB. * Witness Printer took 139.06ms. Allocated memory is still 207.6MB. Free memory was 104.8MB in the beginning and 99.6MB in the end (delta: 5.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #length[3] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #length[2] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #length[1] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #valid[3] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #valid[1] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #valid[0] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #valid[2] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int[1][0] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int[1][1] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #length[3] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #length[2] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #length[1] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #valid[3] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #valid[1] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #valid[0] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #valid[2] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int[1][0] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int[1][1] could not be translated * 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 - PositiveResult [Line: 14]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 27 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 5.7s, OverallIterations: 2, TraceHistogramMax: 4, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.5s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 16 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 12 mSDsluCounter, 92 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 62 mSDsCounter, 9 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 128 IncrementalHoareTripleChecker+Invalid, 137 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 9 mSolverCounterUnsat, 30 mSDtfsCounter, 128 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 115 GetRequests, 82 SyntacticMatches, 3 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 119 ImplicationChecksByTransitivity, 1.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=27occurred in iteration=0, InterpolantAutomatonStates: 18, 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, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 13 LocationsWithAnnotation, 25 PreInvPairs, 28 NumberOfFragments, 545 HoareAnnotationTreeSize, 25 FomulaSimplifications, 19 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 13 FomulaSimplificationsInter, 274 FormulaSimplificationTreeSizeReductionInter, 0.5s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.2s InterpolantComputationTime, 46 NumberOfCodeBlocks, 46 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 88 ConstructedInterpolants, 0 QuantifiedInterpolants, 408 SizeOfPredicates, 8 NumberOfNonLiveVariables, 161 ConjunctsInSsa, 40 ConjunctsInUnsatCore, 4 InterpolantComputations, 1 PerfectInterpolantSequences, 47/52 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: OVERALL_TIME: 1.4s, ICFG_INTERPRETER_ENTERED_PROCEDURES: 3, DAG_INTERPRETER_EARLY_EXIT_QUERIES_NONTRIVIAL: 21, DAG_INTERPRETER_EARLY_EXITS: 1, TOOLS_POST_APPLICATIONS: 14, TOOLS_POST_TIME: 0.2s, TOOLS_POST_CALL_APPLICATIONS: 16, TOOLS_POST_CALL_TIME: 0.6s, TOOLS_POST_RETURN_APPLICATIONS: 10, TOOLS_POST_RETURN_TIME: 0.2s, TOOLS_QUANTIFIERELIM_APPLICATIONS: 40, TOOLS_QUANTIFIERELIM_TIME: 0.9s, TOOLS_QUANTIFIERELIM_MAX_TIME: 0.1s, FLUID_QUERY_TIME: 0.0s, FLUID_QUERIES: 54, FLUID_YES_ANSWERS: 0, DOMAIN_JOIN_APPLICATIONS: 18, DOMAIN_JOIN_TIME: 0.3s, DOMAIN_ALPHA_APPLICATIONS: 0, DOMAIN_ALPHA_TIME: 0.0s, DOMAIN_WIDEN_APPLICATIONS: 0, DOMAIN_WIDEN_TIME: 0.0s, DOMAIN_ISSUBSETEQ_APPLICATIONS: 0, DOMAIN_ISSUBSETEQ_TIME: 0.0s, DOMAIN_ISBOTTOM_APPLICATIONS: 21, DOMAIN_ISBOTTOM_TIME: 0.0s, LOOP_SUMMARIZER_APPLICATIONS: 0, LOOP_SUMMARIZER_CACHE_MISSES: 0, LOOP_SUMMARIZER_OVERALL_TIME: 0.0s, LOOP_SUMMARIZER_NEW_COMPUTATION_TIME: 0.0s, LOOP_SUMMARIZER_FIXPOINT_ITERATIONS: 0, CALL_SUMMARIZER_APPLICATIONS: 10, CALL_SUMMARIZER_CACHE_MISSES: 2, CALL_SUMMARIZER_OVERALL_TIME: 0.0s, CALL_SUMMARIZER_NEW_COMPUTATION_TIME: 0.0s, PROCEDURE_GRAPH_BUILDER_TIME: 0.0s, PATH_EXPR_TIME: 0.0s, REGEX_TO_DAG_TIME: 0.0s, DAG_COMPRESSION_TIME: 0.0s, DAG_COMPRESSION_PROCESSED_NODES: 222, DAG_COMPRESSION_RETAINED_NODES: 58, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 35]: Loop Invariant [2023-11-12 00:52:57,739 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #length[3] could not be translated [2023-11-12 00:52:57,740 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #length[2] could not be translated [2023-11-12 00:52:57,740 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #length[1] could not be translated [2023-11-12 00:52:57,741 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #valid[3] could not be translated [2023-11-12 00:52:57,741 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #valid[1] could not be translated [2023-11-12 00:52:57,741 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #valid[0] could not be translated [2023-11-12 00:52:57,741 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #valid[2] could not be translated [2023-11-12 00:52:57,742 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int[1][0] could not be translated [2023-11-12 00:52:57,742 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int[1][1] could not be translated [2023-11-12 00:52:57,742 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #length[3] could not be translated [2023-11-12 00:52:57,743 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #length[2] could not be translated [2023-11-12 00:52:57,743 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #length[1] could not be translated [2023-11-12 00:52:57,743 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #valid[3] could not be translated [2023-11-12 00:52:57,744 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #valid[1] could not be translated [2023-11-12 00:52:57,744 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #valid[0] could not be translated [2023-11-12 00:52:57,744 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #valid[2] could not be translated [2023-11-12 00:52:57,744 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int[1][0] could not be translated [2023-11-12 00:52:57,744 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int[1][1] could not be translated Derived loop invariant: (((((((R * R) + 2) <= ((2 * R) + A)) && (v == 1)) && (A <= 1)) && (((u * u) + 1) == (((A * 4) + (r * 4)) + (2 * u)))) && (((2 * R) + 1) == u)) - InvariantResult [Line: 40]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 48]: Loop Invariant Derived loop invariant: 0 RESULT: Ultimate proved your program to be correct! [2023-11-12 00:52:57,761 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6918e36a-4002-4767-9453-97b44012506e/bin/utaipan-verify-NcY6lQBIFX/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 Result: TRUE