./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 527bcce2 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95c361d2-0d71-49ff-b7b1-f76d81bb5259/bin/utaipan-verify-QoSU8krkJ5/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95c361d2-0d71-49ff-b7b1-f76d81bb5259/bin/utaipan-verify-QoSU8krkJ5/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95c361d2-0d71-49ff-b7b1-f76d81bb5259/bin/utaipan-verify-QoSU8krkJ5/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95c361d2-0d71-49ff-b7b1-f76d81bb5259/bin/utaipan-verify-QoSU8krkJ5/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_95c361d2-0d71-49ff-b7b1-f76d81bb5259/bin/utaipan-verify-QoSU8krkJ5/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95c361d2-0d71-49ff-b7b1-f76d81bb5259/bin/utaipan-verify-QoSU8krkJ5 --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-527bcce [2023-11-21 19:00:34,243 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-21 19:00:34,308 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95c361d2-0d71-49ff-b7b1-f76d81bb5259/bin/utaipan-verify-QoSU8krkJ5/config/svcomp-Reach-32bit-Taipan_Default.epf [2023-11-21 19:00:34,314 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-21 19:00:34,315 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-21 19:00:34,341 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-21 19:00:34,341 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-21 19:00:34,342 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-21 19:00:34,343 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-21 19:00:34,344 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-21 19:00:34,344 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-21 19:00:34,345 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-21 19:00:34,345 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-21 19:00:34,346 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-21 19:00:34,347 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-21 19:00:34,347 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-21 19:00:34,348 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-21 19:00:34,348 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-21 19:00:34,349 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-21 19:00:34,349 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-21 19:00:34,350 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-21 19:00:34,351 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-21 19:00:34,352 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-21 19:00:34,352 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-21 19:00:34,353 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-21 19:00:34,353 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-21 19:00:34,353 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-21 19:00:34,354 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-21 19:00:34,354 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-21 19:00:34,355 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-21 19:00:34,355 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-21 19:00:34,356 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-21 19:00:34,356 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-21 19:00:34,357 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-21 19:00:34,357 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-21 19:00:34,358 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-21 19:00:34,358 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-21 19:00:34,359 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 19:00:34,359 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-21 19:00:34,360 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-21 19:00:34,360 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-21 19:00:34,361 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-21 19:00:34,361 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-21 19:00:34,361 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-21 19:00:34,362 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-21 19:00:34,362 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-21 19:00:34,363 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-21 19:00:34,363 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_95c361d2-0d71-49ff-b7b1-f76d81bb5259/bin/utaipan-verify-QoSU8krkJ5/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95c361d2-0d71-49ff-b7b1-f76d81bb5259/bin/utaipan-verify-QoSU8krkJ5 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 92e6df76ce1206795a3a206ec7de3a20b30db31ab661efba7e1901708b9ce34a [2023-11-21 19:00:34,656 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-21 19:00:34,689 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-21 19:00:34,694 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-21 19:00:34,698 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-21 19:00:34,699 INFO L274 PluginConnector]: CDTParser initialized [2023-11-21 19:00:34,701 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95c361d2-0d71-49ff-b7b1-f76d81bb5259/bin/utaipan-verify-QoSU8krkJ5/../../sv-benchmarks/c/nla-digbench-scaling/fermat1-ll_valuebound1.c [2023-11-21 19:00:37,895 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-21 19:00:38,105 INFO L384 CDTParser]: Found 1 translation units. [2023-11-21 19:00:38,106 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95c361d2-0d71-49ff-b7b1-f76d81bb5259/sv-benchmarks/c/nla-digbench-scaling/fermat1-ll_valuebound1.c [2023-11-21 19:00:38,113 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95c361d2-0d71-49ff-b7b1-f76d81bb5259/bin/utaipan-verify-QoSU8krkJ5/data/b1a8ed8c1/5e21063e6e374ae3837fc8bd0aeb84f8/FLAG5467b6cb6 [2023-11-21 19:00:38,127 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95c361d2-0d71-49ff-b7b1-f76d81bb5259/bin/utaipan-verify-QoSU8krkJ5/data/b1a8ed8c1/5e21063e6e374ae3837fc8bd0aeb84f8 [2023-11-21 19:00:38,130 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-21 19:00:38,133 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-21 19:00:38,134 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-21 19:00:38,134 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-21 19:00:38,141 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-21 19:00:38,145 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 07:00:38" (1/1) ... [2023-11-21 19:00:38,146 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@ca006f1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:00:38, skipping insertion in model container [2023-11-21 19:00:38,146 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 07:00:38" (1/1) ... [2023-11-21 19:00:38,174 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-21 19:00:38,319 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_95c361d2-0d71-49ff-b7b1-f76d81bb5259/sv-benchmarks/c/nla-digbench-scaling/fermat1-ll_valuebound1.c[535,548] [2023-11-21 19:00:38,337 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 19:00:38,347 INFO L202 MainTranslator]: Completed pre-run [2023-11-21 19:00:38,356 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_95c361d2-0d71-49ff-b7b1-f76d81bb5259/sv-benchmarks/c/nla-digbench-scaling/fermat1-ll_valuebound1.c[535,548] [2023-11-21 19:00:38,367 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 19:00:38,381 INFO L206 MainTranslator]: Completed translation [2023-11-21 19:00:38,381 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:00:38 WrapperNode [2023-11-21 19:00:38,382 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-21 19:00:38,383 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-21 19:00:38,383 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-21 19:00:38,383 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-21 19:00:38,391 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:00:38" (1/1) ... [2023-11-21 19:00:38,398 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:00:38" (1/1) ... [2023-11-21 19:00:38,414 INFO L138 Inliner]: procedures = 14, calls = 15, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 57 [2023-11-21 19:00:38,414 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-21 19:00:38,415 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-21 19:00:38,415 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-21 19:00:38,415 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-21 19:00:38,424 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:00:38" (1/1) ... [2023-11-21 19:00:38,424 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:00:38" (1/1) ... [2023-11-21 19:00:38,425 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:00:38" (1/1) ... [2023-11-21 19:00:38,426 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:00:38" (1/1) ... [2023-11-21 19:00:38,429 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:00:38" (1/1) ... [2023-11-21 19:00:38,433 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:00:38" (1/1) ... [2023-11-21 19:00:38,434 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:00:38" (1/1) ... [2023-11-21 19:00:38,435 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:00:38" (1/1) ... [2023-11-21 19:00:38,436 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-21 19:00:38,437 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-21 19:00:38,437 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-21 19:00:38,438 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-21 19:00:38,438 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:00:38" (1/1) ... [2023-11-21 19:00:38,444 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 19:00:38,459 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95c361d2-0d71-49ff-b7b1-f76d81bb5259/bin/utaipan-verify-QoSU8krkJ5/z3 [2023-11-21 19:00:38,478 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95c361d2-0d71-49ff-b7b1-f76d81bb5259/bin/utaipan-verify-QoSU8krkJ5/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-21 19:00:38,502 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95c361d2-0d71-49ff-b7b1-f76d81bb5259/bin/utaipan-verify-QoSU8krkJ5/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-21 19:00:38,521 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-21 19:00:38,521 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-21 19:00:38,521 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-21 19:00:38,521 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-21 19:00:38,521 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-21 19:00:38,522 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-21 19:00:38,522 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-21 19:00:38,522 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-21 19:00:38,578 INFO L240 CfgBuilder]: Building ICFG [2023-11-21 19:00:38,580 INFO L266 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-21 19:00:38,741 INFO L281 CfgBuilder]: Performing block encoding [2023-11-21 19:00:38,768 INFO L303 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-21 19:00:38,768 INFO L308 CfgBuilder]: Removed 3 assume(true) statements. [2023-11-21 19:00:38,770 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 07:00:38 BoogieIcfgContainer [2023-11-21 19:00:38,770 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-21 19:00:38,773 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-21 19:00:38,773 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-21 19:00:38,777 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-21 19:00:38,777 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 07:00:38" (1/3) ... [2023-11-21 19:00:38,778 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@75358463 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 07:00:38, skipping insertion in model container [2023-11-21 19:00:38,778 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:00:38" (2/3) ... [2023-11-21 19:00:38,779 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@75358463 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 07:00:38, skipping insertion in model container [2023-11-21 19:00:38,779 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 07:00:38" (3/3) ... [2023-11-21 19:00:38,780 INFO L112 eAbstractionObserver]: Analyzing ICFG fermat1-ll_valuebound1.c [2023-11-21 19:00:38,800 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-21 19:00:38,801 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-21 19:00:38,854 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-21 19:00:38,862 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;@509b2415, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-21 19:00:38,862 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-21 19:00:38,866 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) [2023-11-21 19:00:38,875 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2023-11-21 19:00:38,876 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 19:00:38,876 INFO L195 NwaCegarLoop]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 19:00:38,877 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-21 19:00:38,884 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 19:00:38,885 INFO L85 PathProgramCache]: Analyzing trace with hash 1333631252, now seen corresponding path program 1 times [2023-11-21 19:00:38,895 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-21 19:00:38,895 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [887258539] [2023-11-21 19:00:38,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 19:00:38,896 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 19:00:39,034 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-21 19:00:39,036 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [969395597] [2023-11-21 19:00:39,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 19:00:39,036 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 19:00:39,036 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95c361d2-0d71-49ff-b7b1-f76d81bb5259/bin/utaipan-verify-QoSU8krkJ5/z3 [2023-11-21 19:00:39,042 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95c361d2-0d71-49ff-b7b1-f76d81bb5259/bin/utaipan-verify-QoSU8krkJ5/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-21 19:00:39,074 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95c361d2-0d71-49ff-b7b1-f76d81bb5259/bin/utaipan-verify-QoSU8krkJ5/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-21 19:00:39,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 19:00:39,182 INFO L262 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-21 19:00:39,189 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 19:00:39,571 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-21 19:00:39,572 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-21 19:00:39,572 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-21 19:00:39,572 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [887258539] [2023-11-21 19:00:39,573 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-21 19:00:39,573 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [969395597] [2023-11-21 19:00:39,574 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [969395597] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 19:00:39,574 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 19:00:39,574 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-21 19:00:39,576 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1647856551] [2023-11-21 19:00:39,577 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 19:00:39,581 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-21 19:00:39,582 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-21 19:00:39,619 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-21 19:00:39,620 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-21 19:00:39,622 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) [2023-11-21 19:00:41,536 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.76s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-21 19:00:43,563 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.98s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-21 19:00:45,583 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-21 19:00:45,618 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 19:00:45,619 INFO L93 Difference]: Finished difference Result 60 states and 99 transitions. [2023-11-21 19:00:45,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-21 19:00:45,622 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 [2023-11-21 19:00:45,622 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 19:00:45,631 INFO L225 Difference]: With dead ends: 60 [2023-11-21 19:00:45,631 INFO L226 Difference]: Without dead ends: 39 [2023-11-21 19:00:45,635 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-11-21 19:00:45,639 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 11 mSDsluCounter, 61 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 8 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 82 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.9s IncrementalHoareTripleChecker+Time [2023-11-21 19:00:45,640 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 82 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 57 Invalid, 1 Unknown, 0 Unchecked, 5.9s Time] [2023-11-21 19:00:45,660 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2023-11-21 19:00:45,690 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 38. [2023-11-21 19:00:45,692 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38 states, 23 states have (on average 1.3043478260869565) internal successors, (30), 24 states have internal predecessors, (30), 11 states have call successors, (11), 3 states have call predecessors, (11), 3 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2023-11-21 19:00:45,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 51 transitions. [2023-11-21 19:00:45,696 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 51 transitions. Word has length 20 [2023-11-21 19:00:45,697 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 19:00:45,697 INFO L495 AbstractCegarLoop]: Abstraction has 38 states and 51 transitions. [2023-11-21 19:00:45,698 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) [2023-11-21 19:00:45,698 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 51 transitions. [2023-11-21 19:00:45,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2023-11-21 19:00:45,700 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 19:00:45,701 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] [2023-11-21 19:00:45,728 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95c361d2-0d71-49ff-b7b1-f76d81bb5259/bin/utaipan-verify-QoSU8krkJ5/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-21 19:00:45,922 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95c361d2-0d71-49ff-b7b1-f76d81bb5259/bin/utaipan-verify-QoSU8krkJ5/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2023-11-21 19:00:45,923 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-21 19:00:45,924 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 19:00:45,924 INFO L85 PathProgramCache]: Analyzing trace with hash 1820027827, now seen corresponding path program 1 times [2023-11-21 19:00:45,925 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-21 19:00:45,925 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [329286114] [2023-11-21 19:00:45,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 19:00:45,925 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 19:00:45,944 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-21 19:00:45,945 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [442522847] [2023-11-21 19:00:45,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 19:00:45,945 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 19:00:45,946 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95c361d2-0d71-49ff-b7b1-f76d81bb5259/bin/utaipan-verify-QoSU8krkJ5/z3 [2023-11-21 19:00:45,947 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95c361d2-0d71-49ff-b7b1-f76d81bb5259/bin/utaipan-verify-QoSU8krkJ5/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-21 19:00:45,968 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95c361d2-0d71-49ff-b7b1-f76d81bb5259/bin/utaipan-verify-QoSU8krkJ5/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-21 19:00:46,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 19:00:46,034 INFO L262 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 10 conjunts are in the unsatisfiable core [2023-11-21 19:00:46,037 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 19:00:46,185 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-21 19:00:46,186 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-21 19:00:46,373 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-21 19:00:46,374 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-21 19:00:46,374 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [329286114] [2023-11-21 19:00:46,374 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-21 19:00:46,375 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [442522847] [2023-11-21 19:00:46,375 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [442522847] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-21 19:00:46,375 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1327594003] [2023-11-21 19:00:46,407 INFO L159 IcfgInterpreter]: Started Sifa with 19 locations of interest [2023-11-21 19:00:46,407 INFO L166 IcfgInterpreter]: Building call graph [2023-11-21 19:00:46,411 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-11-21 19:00:46,417 INFO L176 IcfgInterpreter]: Starting interpretation [2023-11-21 19:00:46,418 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-11-21 19:00:47,516 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 52 for LOIs [2023-11-21 19:00:47,607 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 3 for LOIs [2023-11-21 19:00:47,609 INFO L180 IcfgInterpreter]: Interpretation finished [2023-11-21 19:00:48,743 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [1327594003] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 19:00:48,743 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2023-11-21 19:00:48,744 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [8, 8] total 20 [2023-11-21 19:00:48,744 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1820406546] [2023-11-21 19:00:48,745 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 19:00:48,745 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-21 19:00:48,746 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-21 19:00:48,749 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-21 19:00:48,751 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=301, Unknown=0, NotChecked=0, Total=380 [2023-11-21 19:00:48,753 INFO L87 Difference]: Start difference. First operand 38 states and 51 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) [2023-11-21 19:00:48,938 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 19:00:48,938 INFO L93 Difference]: Finished difference Result 50 states and 64 transitions. [2023-11-21 19:00:48,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-21 19:00:48,939 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 [2023-11-21 19:00:48,939 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 19:00:48,940 INFO L225 Difference]: With dead ends: 50 [2023-11-21 19:00:48,940 INFO L226 Difference]: Without dead ends: 0 [2023-11-21 19:00:48,941 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 53 SyntacticMatches, 5 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 81 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=79, Invalid=301, Unknown=0, NotChecked=0, Total=380 [2023-11-21 19:00:48,947 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 0 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 90 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 18 SdHoareTripleChecker+Invalid, 91 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 90 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-21 19:00:48,948 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 18 Invalid, 91 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 90 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-21 19:00:48,951 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-11-21 19:00:48,952 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-11-21 19:00:48,952 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) [2023-11-21 19:00:48,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-11-21 19:00:48,954 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 26 [2023-11-21 19:00:48,954 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 19:00:48,955 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-21 19:00:48,958 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) [2023-11-21 19:00:48,959 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-11-21 19:00:48,959 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-21 19:00:48,961 INFO L805 garLoopResultBuilder]: Registering result SAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-21 19:00:48,986 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95c361d2-0d71-49ff-b7b1-f76d81bb5259/bin/utaipan-verify-QoSU8krkJ5/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-21 19:00:49,184 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95c361d2-0d71-49ff-b7b1-f76d81bb5259/bin/utaipan-verify-QoSU8krkJ5/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2023-11-21 19:00:49,187 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-11-21 19:00:49,637 INFO L895 garLoopResultBuilder]: At program point L35-2(lines 35 55) the Hoare annotation is: (let ((.cse0 (* |ULTIMATE.start_main_~R~0#1| |ULTIMATE.start_main_~R~0#1|)) (.cse2 (select |#memory_int| 1)) (.cse1 (* 2 |ULTIMATE.start_main_~R~0#1|))) (and (= (select |#length| 3) 12) (<= 1 |#StackHeapBarrier|) (= .cse0 (+ |ULTIMATE.start_main_~A~0#1| |ULTIMATE.start_main_~r~0#1|)) (= 13 (select |#length| 2)) (<= (+ .cse0 2) (+ .cse1 |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) (= (select |#valid| 0) 0) (= (select |#valid| 2) 1) (= (select .cse2 0) 48) (= (select .cse2 1) 0) (= (+ .cse1 1) |ULTIMATE.start_main_~u~0#1|))) [2023-11-21 19:00:49,637 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))) [2023-11-21 19:00:49,637 INFO L899 garLoopResultBuilder]: For program point L23-1(line 23) no Hoare annotation was computed. [2023-11-21 19:00:49,637 INFO L895 garLoopResultBuilder]: At program point L48-1(lines 48 54) the Hoare annotation is: false [2023-11-21 19:00:49,638 INFO L895 garLoopResultBuilder]: At program point L48-2(lines 35 55) the Hoare annotation is: (let ((.cse2 (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) (= (select |#valid| 0) 0) (= (+ |ULTIMATE.start_main_~A~0#1| |ULTIMATE.start_main_~r~0#1|) (let ((.cse1 (div (+ (- 1) |ULTIMATE.start_main_~u~0#1|) 2))) (* .cse1 .cse1))) (= (select |#valid| 2) 1) (= (select .cse2 0) 48) (= (select .cse2 1) 0) (= (+ .cse0 1) |ULTIMATE.start_main_~u~0#1|))) [2023-11-21 19:00:49,638 INFO L895 garLoopResultBuilder]: At program point L40-2(lines 40 46) the Hoare annotation is: false [2023-11-21 19:00:49,638 INFO L895 garLoopResultBuilder]: At program point L36(line 36) the Hoare annotation is: (let ((.cse2 (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) (= (select |#valid| 0) 0) (= (+ |ULTIMATE.start_main_~A~0#1| |ULTIMATE.start_main_~r~0#1|) (let ((.cse1 (div (+ (- 1) |ULTIMATE.start_main_~u~0#1|) 2))) (* .cse1 .cse1))) (= (select |#valid| 2) 1) (= (select .cse2 0) 48) (= (select .cse2 1) 0) (= (+ .cse0 1) |ULTIMATE.start_main_~u~0#1|))) [2023-11-21 19:00:49,638 INFO L899 garLoopResultBuilder]: For program point L36-1(lines 35 55) no Hoare annotation was computed. [2023-11-21 19:00:49,639 INFO L899 garLoopResultBuilder]: For program point L28(line 28) no Hoare annotation was computed. [2023-11-21 19:00:49,639 INFO L899 garLoopResultBuilder]: For program point L57(line 57) no Hoare annotation was computed. [2023-11-21 19:00:49,639 INFO L895 garLoopResultBuilder]: At program point L49(line 49) the Hoare annotation is: false [2023-11-21 19:00:49,639 INFO L899 garLoopResultBuilder]: For program point L49-1(lines 48 54) no Hoare annotation was computed. [2023-11-21 19:00:49,639 INFO L895 garLoopResultBuilder]: At program point L41(line 41) the Hoare annotation is: false [2023-11-21 19:00:49,639 INFO L899 garLoopResultBuilder]: For program point L41-1(lines 40 46) no Hoare annotation was computed. [2023-11-21 19:00:49,640 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-11-21 19:00:49,640 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))) [2023-11-21 19:00:49,640 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))) [2023-11-21 19:00:49,640 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-11-21 19:00:49,641 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))) [2023-11-21 19:00:49,641 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 8 10) the Hoare annotation is: true [2023-11-21 19:00:49,641 INFO L899 garLoopResultBuilder]: For program point assume_abort_if_notEXIT(lines 8 10) no Hoare annotation was computed. [2023-11-21 19:00:49,641 INFO L899 garLoopResultBuilder]: For program point L13(lines 13 14) no Hoare annotation was computed. [2023-11-21 19:00:49,641 INFO L899 garLoopResultBuilder]: For program point L12(lines 12 15) no Hoare annotation was computed. [2023-11-21 19:00:49,641 INFO L899 garLoopResultBuilder]: For program point L12-2(lines 11 17) no Hoare annotation was computed. [2023-11-21 19:00:49,642 INFO L899 garLoopResultBuilder]: For program point __VERIFIER_assertEXIT(lines 11 17) no Hoare annotation was computed. [2023-11-21 19:00:49,642 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 11 17) the Hoare annotation is: true [2023-11-21 19:00:49,642 INFO L899 garLoopResultBuilder]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 14) no Hoare annotation was computed. [2023-11-21 19:00:49,646 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2023-11-21 19:00:49,648 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-21 19:00:49,663 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #length[3] could not be translated [2023-11-21 19:00:49,665 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #length[2] could not be translated [2023-11-21 19:00:49,668 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #length[1] could not be translated [2023-11-21 19:00:49,669 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #valid[3] could not be translated [2023-11-21 19:00:49,669 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #valid[1] could not be translated [2023-11-21 19:00:49,669 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #valid[0] could not be translated [2023-11-21 19:00:49,670 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #valid[2] could not be translated [2023-11-21 19:00:49,671 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int[1][0] could not be translated [2023-11-21 19:00:49,671 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int[1][1] could not be translated [2023-11-21 19:00:49,673 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.11 07:00:49 BoogieIcfgContainer [2023-11-21 19:00:49,673 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-21 19:00:49,674 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-21 19:00:49,674 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-21 19:00:49,674 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-21 19:00:49,675 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 07:00:38" (3/4) ... [2023-11-21 19:00:49,678 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-21 19:00:49,682 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure assume_abort_if_not [2023-11-21 19:00:49,682 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2023-11-21 19:00:49,689 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 19 nodes and edges [2023-11-21 19:00:49,690 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2023-11-21 19:00:49,690 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-21 19:00:49,691 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-21 19:00:49,792 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95c361d2-0d71-49ff-b7b1-f76d81bb5259/bin/utaipan-verify-QoSU8krkJ5/witness.graphml [2023-11-21 19:00:49,792 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95c361d2-0d71-49ff-b7b1-f76d81bb5259/bin/utaipan-verify-QoSU8krkJ5/witness.yml [2023-11-21 19:00:49,792 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-21 19:00:49,793 INFO L158 Benchmark]: Toolchain (without parser) took 11660.46ms. Allocated memory was 138.4MB in the beginning and 180.4MB in the end (delta: 41.9MB). Free memory was 100.3MB in the beginning and 64.3MB in the end (delta: 36.0MB). Peak memory consumption was 79.5MB. Max. memory is 16.1GB. [2023-11-21 19:00:49,793 INFO L158 Benchmark]: CDTParser took 0.34ms. Allocated memory is still 138.4MB. Free memory was 108.2MB in the beginning and 108.1MB in the end (delta: 159.6kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 19:00:49,794 INFO L158 Benchmark]: CACSL2BoogieTranslator took 247.99ms. Allocated memory is still 138.4MB. Free memory was 99.9MB in the beginning and 89.0MB in the end (delta: 10.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-21 19:00:49,794 INFO L158 Benchmark]: Boogie Procedure Inliner took 31.26ms. Allocated memory is still 138.4MB. Free memory was 89.0MB in the beginning and 87.2MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-21 19:00:49,794 INFO L158 Benchmark]: Boogie Preprocessor took 21.68ms. Allocated memory is still 138.4MB. Free memory was 87.2MB in the beginning and 86.3MB in the end (delta: 938.4kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 19:00:49,795 INFO L158 Benchmark]: RCFGBuilder took 333.09ms. Allocated memory is still 138.4MB. Free memory was 86.3MB in the beginning and 73.8MB in the end (delta: 12.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-21 19:00:49,795 INFO L158 Benchmark]: TraceAbstraction took 10900.17ms. Allocated memory was 138.4MB in the beginning and 180.4MB in the end (delta: 41.9MB). Free memory was 73.1MB in the beginning and 68.5MB in the end (delta: 4.6MB). Peak memory consumption was 48.0MB. Max. memory is 16.1GB. [2023-11-21 19:00:49,796 INFO L158 Benchmark]: Witness Printer took 118.68ms. Allocated memory is still 180.4MB. Free memory was 68.5MB in the beginning and 64.3MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-21 19:00:49,798 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34ms. Allocated memory is still 138.4MB. Free memory was 108.2MB in the beginning and 108.1MB in the end (delta: 159.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 247.99ms. Allocated memory is still 138.4MB. Free memory was 99.9MB in the beginning and 89.0MB in the end (delta: 10.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 31.26ms. Allocated memory is still 138.4MB. Free memory was 89.0MB in the beginning and 87.2MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 21.68ms. Allocated memory is still 138.4MB. Free memory was 87.2MB in the beginning and 86.3MB in the end (delta: 938.4kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 333.09ms. Allocated memory is still 138.4MB. Free memory was 86.3MB in the beginning and 73.8MB in the end (delta: 12.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 10900.17ms. Allocated memory was 138.4MB in the beginning and 180.4MB in the end (delta: 41.9MB). Free memory was 73.1MB in the beginning and 68.5MB in the end (delta: 4.6MB). Peak memory consumption was 48.0MB. Max. memory is 16.1GB. * Witness Printer took 118.68ms. Allocated memory is still 180.4MB. Free memory was 68.5MB in the beginning and 64.3MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. 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 * 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: 10.8s, OverallIterations: 2, TraceHistogramMax: 4, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 6.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.5s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1 mSolverCounterUnknown, 15 SdHoareTripleChecker+Valid, 6.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 11 mSDsluCounter, 100 SdHoareTripleChecker+Invalid, 6.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 70 mSDsCounter, 9 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 147 IncrementalHoareTripleChecker+Invalid, 157 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 9 mSolverCounterUnsat, 30 mSDtfsCounter, 147 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 96 GetRequests, 69 SyntacticMatches, 5 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 81 ImplicationChecksByTransitivity, 1.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=38occurred in iteration=1, InterpolantAutomatonStates: 17, 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: 0.0s HoareAnnotationTime, 13 LocationsWithAnnotation, 28 PreInvPairs, 31 NumberOfFragments, 534 HoareAnnotationTreeSize, 28 FomulaSimplifications, 3 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 13 FomulaSimplificationsInter, 281 FormulaSimplificationTreeSizeReductionInter, 0.4s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 46 NumberOfCodeBlocks, 46 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 69 ConstructedInterpolants, 0 QuantifiedInterpolants, 228 SizeOfPredicates, 5 NumberOfNonLiveVariables, 161 ConjunctsInSsa, 21 ConjunctsInUnsatCore, 3 InterpolantComputations, 1 PerfectInterpolantSequences, 38/40 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: 1.2s, ICFG_INTERPRETER_ENTERED_PROCEDURES: 3, DAG_INTERPRETER_EARLY_EXIT_QUERIES_NONTRIVIAL: 21, DAG_INTERPRETER_EARLY_EXITS: 1, TOOLS_POST_APPLICATIONS: 14, TOOLS_POST_TIME: 0.1s, TOOLS_POST_CALL_APPLICATIONS: 16, TOOLS_POST_CALL_TIME: 0.5s, TOOLS_POST_RETURN_APPLICATIONS: 10, TOOLS_POST_RETURN_TIME: 0.2s, TOOLS_QUANTIFIERELIM_APPLICATIONS: 40, TOOLS_QUANTIFIERELIM_TIME: 0.8s, TOOLS_QUANTIFIERELIM_MAX_TIME: 0.0s, FLUID_QUERY_TIME: 0.0s, FLUID_QUERIES: 54, FLUID_YES_ANSWERS: 0, DOMAIN_JOIN_APPLICATIONS: 18, DOMAIN_JOIN_TIME: 0.2s, 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 Derived loop invariant: (((((((R * R) + 2) <= ((2 * R) + A)) && (v == 1)) && (A <= 1)) && ((A + r) == (((-1 + u) / 2) * ((-1 + u) / 2)))) && (((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! [2023-11-21 19:00:49,825 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95c361d2-0d71-49ff-b7b1-f76d81bb5259/bin/utaipan-verify-QoSU8krkJ5/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