./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-90.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0e0057cc 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_4b76f39d-9932-409a-9e4c-97792f2ad675/bin/utaipan-verify-nQ1chXbOIh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b76f39d-9932-409a-9e4c-97792f2ad675/bin/utaipan-verify-nQ1chXbOIh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b76f39d-9932-409a-9e4c-97792f2ad675/bin/utaipan-verify-nQ1chXbOIh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b76f39d-9932-409a-9e4c-97792f2ad675/bin/utaipan-verify-nQ1chXbOIh/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-90.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b76f39d-9932-409a-9e4c-97792f2ad675/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b76f39d-9932-409a-9e4c-97792f2ad675/bin/utaipan-verify-nQ1chXbOIh --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 5e76bf897418c531679e53fa28b7c04d453b1c5b37fbed71b943af641f77aed6 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 16:35:19,334 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 16:35:19,397 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b76f39d-9932-409a-9e4c-97792f2ad675/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Reach-32bit-Taipan_Default.epf [2023-12-02 16:35:19,402 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-02 16:35:19,402 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-02 16:35:19,426 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 16:35:19,427 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-02 16:35:19,427 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-02 16:35:19,428 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-02 16:35:19,428 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-02 16:35:19,429 INFO L153 SettingsManager]: * User list type=DISABLED [2023-12-02 16:35:19,429 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-12-02 16:35:19,430 INFO L153 SettingsManager]: * Explicit value domain=true [2023-12-02 16:35:19,430 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-12-02 16:35:19,431 INFO L153 SettingsManager]: * Octagon Domain=false [2023-12-02 16:35:19,431 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-12-02 16:35:19,432 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-12-02 16:35:19,432 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-12-02 16:35:19,433 INFO L153 SettingsManager]: * Interval Domain=false [2023-12-02 16:35:19,433 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-12-02 16:35:19,434 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-12-02 16:35:19,434 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-12-02 16:35:19,435 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 16:35:19,435 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-02 16:35:19,436 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-02 16:35:19,436 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-02 16:35:19,437 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-02 16:35:19,437 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 16:35:19,438 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-02 16:35:19,438 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 16:35:19,439 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-02 16:35:19,439 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-02 16:35:19,439 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-02 16:35:19,440 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 16:35:19,440 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 16:35:19,440 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-02 16:35:19,441 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-02 16:35:19,441 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 16:35:19,441 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 16:35:19,441 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 16:35:19,441 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-02 16:35:19,442 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-12-02 16:35:19,442 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-02 16:35:19,442 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-02 16:35:19,442 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-02 16:35:19,442 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-12-02 16:35:19,443 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-02 16:35:19,443 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_4b76f39d-9932-409a-9e4c-97792f2ad675/bin/utaipan-verify-nQ1chXbOIh/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b76f39d-9932-409a-9e4c-97792f2ad675/bin/utaipan-verify-nQ1chXbOIh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5e76bf897418c531679e53fa28b7c04d453b1c5b37fbed71b943af641f77aed6 [2023-12-02 16:35:19,675 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 16:35:19,696 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 16:35:19,699 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 16:35:19,700 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 16:35:19,700 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 16:35:19,702 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b76f39d-9932-409a-9e4c-97792f2ad675/bin/utaipan-verify-nQ1chXbOIh/../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-90.i [2023-12-02 16:35:22,431 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 16:35:22,621 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 16:35:22,621 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b76f39d-9932-409a-9e4c-97792f2ad675/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-90.i [2023-12-02 16:35:22,631 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b76f39d-9932-409a-9e4c-97792f2ad675/bin/utaipan-verify-nQ1chXbOIh/data/8048880f0/478e2eebcf8b40e2a83075649959c5ed/FLAG123355cda [2023-12-02 16:35:22,994 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b76f39d-9932-409a-9e4c-97792f2ad675/bin/utaipan-verify-nQ1chXbOIh/data/8048880f0/478e2eebcf8b40e2a83075649959c5ed [2023-12-02 16:35:22,996 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 16:35:22,997 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 16:35:22,999 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 16:35:22,999 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 16:35:23,003 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 16:35:23,003 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 04:35:22" (1/1) ... [2023-12-02 16:35:23,004 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@57b9be53 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:35:23, skipping insertion in model container [2023-12-02 16:35:23,005 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 04:35:22" (1/1) ... [2023-12-02 16:35:23,028 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 16:35:23,146 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_4b76f39d-9932-409a-9e4c-97792f2ad675/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-90.i[915,928] [2023-12-02 16:35:23,184 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 16:35:23,196 INFO L202 MainTranslator]: Completed pre-run [2023-12-02 16:35:23,207 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_4b76f39d-9932-409a-9e4c-97792f2ad675/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-90.i[915,928] [2023-12-02 16:35:23,227 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 16:35:23,244 INFO L206 MainTranslator]: Completed translation [2023-12-02 16:35:23,244 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:35:23 WrapperNode [2023-12-02 16:35:23,244 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 16:35:23,245 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-02 16:35:23,245 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-02 16:35:23,246 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-02 16:35:23,251 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:35:23" (1/1) ... [2023-12-02 16:35:23,259 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:35:23" (1/1) ... [2023-12-02 16:35:23,287 INFO L138 Inliner]: procedures = 26, calls = 30, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 134 [2023-12-02 16:35:23,287 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-02 16:35:23,288 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-02 16:35:23,288 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-02 16:35:23,288 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-02 16:35:23,300 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:35:23" (1/1) ... [2023-12-02 16:35:23,300 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:35:23" (1/1) ... [2023-12-02 16:35:23,303 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:35:23" (1/1) ... [2023-12-02 16:35:23,303 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:35:23" (1/1) ... [2023-12-02 16:35:23,310 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:35:23" (1/1) ... [2023-12-02 16:35:23,313 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:35:23" (1/1) ... [2023-12-02 16:35:23,315 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:35:23" (1/1) ... [2023-12-02 16:35:23,317 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:35:23" (1/1) ... [2023-12-02 16:35:23,320 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-02 16:35:23,321 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-02 16:35:23,321 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-02 16:35:23,321 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-02 16:35:23,322 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:35:23" (1/1) ... [2023-12-02 16:35:23,328 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 16:35:23,339 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b76f39d-9932-409a-9e4c-97792f2ad675/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 16:35:23,350 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b76f39d-9932-409a-9e4c-97792f2ad675/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-12-02 16:35:23,358 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b76f39d-9932-409a-9e4c-97792f2ad675/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-12-02 16:35:23,384 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-02 16:35:23,384 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-02 16:35:23,384 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-02 16:35:23,384 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-02 16:35:23,385 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-02 16:35:23,385 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-02 16:35:23,458 INFO L241 CfgBuilder]: Building ICFG [2023-12-02 16:35:23,461 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-02 16:35:23,701 INFO L282 CfgBuilder]: Performing block encoding [2023-12-02 16:35:23,870 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-02 16:35:23,870 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-02 16:35:23,872 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 04:35:23 BoogieIcfgContainer [2023-12-02 16:35:23,872 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-02 16:35:23,875 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-02 16:35:23,875 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-02 16:35:23,878 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-02 16:35:23,878 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 04:35:22" (1/3) ... [2023-12-02 16:35:23,879 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@70c2a0d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 04:35:23, skipping insertion in model container [2023-12-02 16:35:23,879 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:35:23" (2/3) ... [2023-12-02 16:35:23,880 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@70c2a0d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 04:35:23, skipping insertion in model container [2023-12-02 16:35:23,880 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 04:35:23" (3/3) ... [2023-12-02 16:35:23,881 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_loopvsstraightlinecode_25-while_file-90.i [2023-12-02 16:35:23,900 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-02 16:35:23,900 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-02 16:35:23,942 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-02 16:35:23,948 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;@bd8cb3d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-02 16:35:23,948 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-02 16:35:23,951 INFO L276 IsEmpty]: Start isEmpty. Operand has 35 states, 15 states have (on average 1.2) internal successors, (18), 16 states have internal predecessors, (18), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2023-12-02 16:35:23,960 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2023-12-02 16:35:23,960 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 16:35:23,960 INFO L195 NwaCegarLoop]: trace histogram [17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 16:35:23,961 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 16:35:23,965 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 16:35:23,965 INFO L85 PathProgramCache]: Analyzing trace with hash -1442826406, now seen corresponding path program 1 times [2023-12-02 16:35:23,972 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 16:35:23,972 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1070737531] [2023-12-02 16:35:23,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:35:23,973 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 16:35:24,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-02 16:35:24,300 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-12-02 16:35:24,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-02 16:35:24,454 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2023-12-02 16:35:24,456 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-12-02 16:35:24,457 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-02 16:35:24,459 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-02 16:35:24,463 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-12-02 16:35:24,467 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-12-02 16:35:24,526 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 04:35:24 BoogieIcfgContainer [2023-12-02 16:35:24,526 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-02 16:35:24,527 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-12-02 16:35:24,527 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-12-02 16:35:24,527 INFO L274 PluginConnector]: Witness Printer initialized [2023-12-02 16:35:24,528 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 04:35:23" (3/4) ... [2023-12-02 16:35:24,530 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-12-02 16:35:24,531 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-12-02 16:35:24,532 INFO L158 Benchmark]: Toolchain (without parser) took 1534.53ms. Allocated memory was 119.5MB in the beginning and 151.0MB in the end (delta: 31.5MB). Free memory was 77.6MB in the beginning and 86.7MB in the end (delta: -9.2MB). Peak memory consumption was 26.5MB. Max. memory is 16.1GB. [2023-12-02 16:35:24,533 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 119.5MB. Free memory is still 88.2MB. There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 16:35:24,534 INFO L158 Benchmark]: CACSL2BoogieTranslator took 246.13ms. Allocated memory is still 119.5MB. Free memory was 77.2MB in the beginning and 65.2MB in the end (delta: 12.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-12-02 16:35:24,534 INFO L158 Benchmark]: Boogie Procedure Inliner took 41.89ms. Allocated memory is still 119.5MB. Free memory was 65.2MB in the beginning and 62.9MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-12-02 16:35:24,535 INFO L158 Benchmark]: Boogie Preprocessor took 32.11ms. Allocated memory is still 119.5MB. Free memory was 62.9MB in the beginning and 61.6MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-12-02 16:35:24,535 INFO L158 Benchmark]: RCFGBuilder took 551.65ms. Allocated memory is still 119.5MB. Free memory was 61.3MB in the beginning and 65.1MB in the end (delta: -3.8MB). Peak memory consumption was 16.7MB. Max. memory is 16.1GB. [2023-12-02 16:35:24,536 INFO L158 Benchmark]: TraceAbstraction took 651.46ms. Allocated memory was 119.5MB in the beginning and 151.0MB in the end (delta: 31.5MB). Free memory was 64.5MB in the beginning and 87.8MB in the end (delta: -23.3MB). Peak memory consumption was 7.7MB. Max. memory is 16.1GB. [2023-12-02 16:35:24,537 INFO L158 Benchmark]: Witness Printer took 4.13ms. Allocated memory is still 151.0MB. Free memory was 86.7MB in the beginning and 86.7MB in the end (delta: 2.0kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-12-02 16:35:24,540 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 119.5MB. Free memory is still 88.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 246.13ms. Allocated memory is still 119.5MB. Free memory was 77.2MB in the beginning and 65.2MB in the end (delta: 12.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 41.89ms. Allocated memory is still 119.5MB. Free memory was 65.2MB in the beginning and 62.9MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 32.11ms. Allocated memory is still 119.5MB. Free memory was 62.9MB in the beginning and 61.6MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 551.65ms. Allocated memory is still 119.5MB. Free memory was 61.3MB in the beginning and 65.1MB in the end (delta: -3.8MB). Peak memory consumption was 16.7MB. Max. memory is 16.1GB. * TraceAbstraction took 651.46ms. Allocated memory was 119.5MB in the beginning and 151.0MB in the end (delta: 31.5MB). Free memory was 64.5MB in the beginning and 87.8MB in the end (delta: -23.3MB). Peak memory consumption was 7.7MB. Max. memory is 16.1GB. * Witness Printer took 4.13ms. Allocated memory is still 151.0MB. Free memory was 86.7MB in the beginning and 86.7MB in the end (delta: 2.0kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 19]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 97, overapproximation of shiftRight at line 53. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] signed short int var_1_1 = 25; [L23] unsigned long int var_1_6 = 2; [L24] unsigned long int var_1_7 = 2762957886; [L25] unsigned long int var_1_8 = 2; [L26] unsigned long int var_1_9 = 1000000000; [L27] unsigned long int var_1_10 = 100; [L28] signed char var_1_11 = 4; [L29] signed char var_1_12 = 8; [L30] signed char var_1_13 = 10; [L31] signed char var_1_14 = 8; [L32] unsigned char var_1_15 = 1; [L33] unsigned char var_1_16 = 0; [L34] double var_1_17 = 32.4; [L35] double var_1_18 = 15.5; [L36] unsigned long int last_1_var_1_6 = 2; [L101] isInitial = 1 [L102] FCALL initially() [L103] COND TRUE 1 [L104] CALL updateLastVariables() [L94] last_1_var_1_6 = var_1_6 [L104] RET updateLastVariables() [L105] CALL updateVariables() [L66] var_1_7 = __VERIFIER_nondet_ulong() [L67] CALL assume_abort_if_not(var_1_7 >= 2147483647) VAL [\old(cond)=1, isInitial=1, last_1_var_1_6=2, var_1_10=100, var_1_11=4, var_1_12=8, var_1_13=10, var_1_14=8, var_1_15=1, var_1_16=0, var_1_17=162/5, var_1_18=31/2, var_1_1=25, var_1_6=2, var_1_7=2147483647, var_1_8=2, var_1_9=1000000000] [L20] COND FALSE !(!cond) [L67] RET assume_abort_if_not(var_1_7 >= 2147483647) VAL [isInitial=1, last_1_var_1_6=2, var_1_10=100, var_1_11=4, var_1_12=8, var_1_13=10, var_1_14=8, var_1_15=1, var_1_16=0, var_1_17=162/5, var_1_18=31/2, var_1_1=25, var_1_6=2, var_1_7=2147483647, var_1_8=2, var_1_9=1000000000] [L68] CALL assume_abort_if_not(var_1_7 <= 4294967295) VAL [\old(cond)=1, isInitial=1, last_1_var_1_6=2, var_1_10=100, var_1_11=4, var_1_12=8, var_1_13=10, var_1_14=8, var_1_15=1, var_1_16=0, var_1_17=162/5, var_1_18=31/2, var_1_1=25, var_1_6=2, var_1_7=2147483647, var_1_8=2, var_1_9=1000000000] [L20] COND FALSE !(!cond) [L68] RET assume_abort_if_not(var_1_7 <= 4294967295) VAL [isInitial=1, last_1_var_1_6=2, var_1_10=100, var_1_11=4, var_1_12=8, var_1_13=10, var_1_14=8, var_1_15=1, var_1_16=0, var_1_17=162/5, var_1_18=31/2, var_1_1=25, var_1_6=2, var_1_7=2147483647, var_1_8=2, var_1_9=1000000000] [L69] var_1_8 = __VERIFIER_nondet_ulong() [L70] CALL assume_abort_if_not(var_1_8 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_6=2, var_1_10=100, var_1_11=4, var_1_12=8, var_1_13=10, var_1_14=8, var_1_15=1, var_1_16=0, var_1_17=162/5, var_1_18=31/2, var_1_1=25, var_1_6=2, var_1_7=2147483647, var_1_9=1000000000] [L20] COND FALSE !(!cond) [L70] RET assume_abort_if_not(var_1_8 >= 0) VAL [isInitial=1, last_1_var_1_6=2, var_1_10=100, var_1_11=4, var_1_12=8, var_1_13=10, var_1_14=8, var_1_15=1, var_1_16=0, var_1_17=162/5, var_1_18=31/2, var_1_1=25, var_1_6=2, var_1_7=2147483647, var_1_9=1000000000] [L71] CALL assume_abort_if_not(var_1_8 <= 2147483647) VAL [\old(cond)=1, isInitial=1, last_1_var_1_6=2, var_1_10=100, var_1_11=4, var_1_12=8, var_1_13=10, var_1_14=8, var_1_15=1, var_1_16=0, var_1_17=162/5, var_1_18=31/2, var_1_1=25, var_1_6=2, var_1_7=2147483647, var_1_8=2147483647, var_1_9=1000000000] [L20] COND FALSE !(!cond) [L71] RET assume_abort_if_not(var_1_8 <= 2147483647) VAL [isInitial=1, last_1_var_1_6=2, var_1_10=100, var_1_11=4, var_1_12=8, var_1_13=10, var_1_14=8, var_1_15=1, var_1_16=0, var_1_17=162/5, var_1_18=31/2, var_1_1=25, var_1_6=2, var_1_7=2147483647, var_1_8=2147483647, var_1_9=1000000000] [L72] var_1_9 = __VERIFIER_nondet_ulong() [L73] CALL assume_abort_if_not(var_1_9 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_6=2, var_1_10=100, var_1_11=4, var_1_12=8, var_1_13=10, var_1_14=8, var_1_15=1, var_1_16=0, var_1_17=162/5, var_1_18=31/2, var_1_1=25, var_1_6=2, var_1_7=2147483647, var_1_8=2147483647] [L20] COND FALSE !(!cond) [L73] RET assume_abort_if_not(var_1_9 >= 0) VAL [isInitial=1, last_1_var_1_6=2, var_1_10=100, var_1_11=4, var_1_12=8, var_1_13=10, var_1_14=8, var_1_15=1, var_1_16=0, var_1_17=162/5, var_1_18=31/2, var_1_1=25, var_1_6=2, var_1_7=2147483647, var_1_8=2147483647] [L74] CALL assume_abort_if_not(var_1_9 <= 4294967295) VAL [\old(cond)=1, isInitial=1, last_1_var_1_6=2, var_1_10=100, var_1_11=4, var_1_12=8, var_1_13=10, var_1_14=8, var_1_15=1, var_1_16=0, var_1_17=162/5, var_1_18=31/2, var_1_1=25, var_1_6=2, var_1_7=2147483647, var_1_8=2147483647] [L20] COND FALSE !(!cond) [L74] RET assume_abort_if_not(var_1_9 <= 4294967295) VAL [isInitial=1, last_1_var_1_6=2, var_1_10=100, var_1_11=4, var_1_12=8, var_1_13=10, var_1_14=8, var_1_15=1, var_1_16=0, var_1_17=162/5, var_1_18=31/2, var_1_1=25, var_1_6=2, var_1_7=2147483647, var_1_8=2147483647] [L75] var_1_10 = __VERIFIER_nondet_ulong() [L76] CALL assume_abort_if_not(var_1_10 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_6=2, var_1_11=4, var_1_12=8, var_1_13=10, var_1_14=8, var_1_15=1, var_1_16=0, var_1_17=162/5, var_1_18=31/2, var_1_1=25, var_1_6=2, var_1_7=2147483647, var_1_8=2147483647] [L20] COND FALSE !(!cond) [L76] RET assume_abort_if_not(var_1_10 >= 0) VAL [isInitial=1, last_1_var_1_6=2, var_1_11=4, var_1_12=8, var_1_13=10, var_1_14=8, var_1_15=1, var_1_16=0, var_1_17=162/5, var_1_18=31/2, var_1_1=25, var_1_6=2, var_1_7=2147483647, var_1_8=2147483647] [L77] CALL assume_abort_if_not(var_1_10 <= 4294967294) VAL [\old(cond)=1, isInitial=1, last_1_var_1_6=2, var_1_10=2147483647, var_1_11=4, var_1_12=8, var_1_13=10, var_1_14=8, var_1_15=1, var_1_16=0, var_1_17=162/5, var_1_18=31/2, var_1_1=25, var_1_6=2, var_1_7=2147483647, var_1_8=2147483647] [L20] COND FALSE !(!cond) [L77] RET assume_abort_if_not(var_1_10 <= 4294967294) VAL [isInitial=1, last_1_var_1_6=2, var_1_10=2147483647, var_1_11=4, var_1_12=8, var_1_13=10, var_1_14=8, var_1_15=1, var_1_16=0, var_1_17=162/5, var_1_18=31/2, var_1_1=25, var_1_6=2, var_1_7=2147483647, var_1_8=2147483647] [L78] var_1_12 = __VERIFIER_nondet_char() [L79] CALL assume_abort_if_not(var_1_12 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_6=2, var_1_10=2147483647, var_1_11=4, var_1_12=19, var_1_13=10, var_1_14=8, var_1_15=1, var_1_16=0, var_1_17=162/5, var_1_18=31/2, var_1_1=25, var_1_6=2, var_1_7=2147483647, var_1_8=2147483647] [L20] COND FALSE !(!cond) [L79] RET assume_abort_if_not(var_1_12 >= 0) VAL [isInitial=1, last_1_var_1_6=2, var_1_10=2147483647, var_1_11=4, var_1_12=19, var_1_13=10, var_1_14=8, var_1_15=1, var_1_16=0, var_1_17=162/5, var_1_18=31/2, var_1_1=25, var_1_6=2, var_1_7=2147483647, var_1_8=2147483647] [L80] CALL assume_abort_if_not(var_1_12 <= 32) VAL [\old(cond)=1, isInitial=1, last_1_var_1_6=2, var_1_10=2147483647, var_1_11=4, var_1_12=19, var_1_13=10, var_1_14=8, var_1_15=1, var_1_16=0, var_1_17=162/5, var_1_18=31/2, var_1_1=25, var_1_6=2, var_1_7=2147483647, var_1_8=2147483647] [L20] COND FALSE !(!cond) [L80] RET assume_abort_if_not(var_1_12 <= 32) VAL [isInitial=1, last_1_var_1_6=2, var_1_10=2147483647, var_1_11=4, var_1_12=19, var_1_13=10, var_1_14=8, var_1_15=1, var_1_16=0, var_1_17=162/5, var_1_18=31/2, var_1_1=25, var_1_6=2, var_1_7=2147483647, var_1_8=2147483647] [L81] var_1_13 = __VERIFIER_nondet_char() [L82] CALL assume_abort_if_not(var_1_13 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_6=2, var_1_10=2147483647, var_1_11=4, var_1_12=19, var_1_13=31, var_1_14=8, var_1_15=1, var_1_16=0, var_1_17=162/5, var_1_18=31/2, var_1_1=25, var_1_6=2, var_1_7=2147483647, var_1_8=2147483647] [L20] COND FALSE !(!cond) [L82] RET assume_abort_if_not(var_1_13 >= 0) VAL [isInitial=1, last_1_var_1_6=2, var_1_10=2147483647, var_1_11=4, var_1_12=19, var_1_13=31, var_1_14=8, var_1_15=1, var_1_16=0, var_1_17=162/5, var_1_18=31/2, var_1_1=25, var_1_6=2, var_1_7=2147483647, var_1_8=2147483647] [L83] CALL assume_abort_if_not(var_1_13 <= 31) VAL [\old(cond)=1, isInitial=1, last_1_var_1_6=2, var_1_10=2147483647, var_1_11=4, var_1_12=19, var_1_13=31, var_1_14=8, var_1_15=1, var_1_16=0, var_1_17=162/5, var_1_18=31/2, var_1_1=25, var_1_6=2, var_1_7=2147483647, var_1_8=2147483647] [L20] COND FALSE !(!cond) [L83] RET assume_abort_if_not(var_1_13 <= 31) VAL [isInitial=1, last_1_var_1_6=2, var_1_10=2147483647, var_1_11=4, var_1_12=19, var_1_13=31, var_1_14=8, var_1_15=1, var_1_16=0, var_1_17=162/5, var_1_18=31/2, var_1_1=25, var_1_6=2, var_1_7=2147483647, var_1_8=2147483647] [L84] var_1_14 = __VERIFIER_nondet_char() [L85] CALL assume_abort_if_not(var_1_14 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_6=2, var_1_10=2147483647, var_1_11=4, var_1_12=19, var_1_13=31, var_1_14=0, var_1_15=1, var_1_16=0, var_1_17=162/5, var_1_18=31/2, var_1_1=25, var_1_6=2, var_1_7=2147483647, var_1_8=2147483647] [L20] COND FALSE !(!cond) [L85] RET assume_abort_if_not(var_1_14 >= 0) VAL [isInitial=1, last_1_var_1_6=2, var_1_10=2147483647, var_1_11=4, var_1_12=19, var_1_13=31, var_1_14=0, var_1_15=1, var_1_16=0, var_1_17=162/5, var_1_18=31/2, var_1_1=25, var_1_6=2, var_1_7=2147483647, var_1_8=2147483647] [L86] CALL assume_abort_if_not(var_1_14 <= 63) VAL [\old(cond)=1, isInitial=1, last_1_var_1_6=2, var_1_10=2147483647, var_1_11=4, var_1_12=19, var_1_13=31, var_1_14=0, var_1_15=1, var_1_16=0, var_1_17=162/5, var_1_18=31/2, var_1_1=25, var_1_6=2, var_1_7=2147483647, var_1_8=2147483647] [L20] COND FALSE !(!cond) [L86] RET assume_abort_if_not(var_1_14 <= 63) VAL [isInitial=1, last_1_var_1_6=2, var_1_10=2147483647, var_1_11=4, var_1_12=19, var_1_13=31, var_1_14=0, var_1_15=1, var_1_16=0, var_1_17=162/5, var_1_18=31/2, var_1_1=25, var_1_6=2, var_1_7=2147483647, var_1_8=2147483647] [L87] var_1_16 = __VERIFIER_nondet_uchar() [L88] CALL assume_abort_if_not(var_1_16 >= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_6=2, var_1_10=2147483647, var_1_11=4, var_1_12=19, var_1_13=31, var_1_14=0, var_1_15=1, var_1_16=1, var_1_17=162/5, var_1_18=31/2, var_1_1=25, var_1_6=2, var_1_7=2147483647, var_1_8=2147483647] [L20] COND FALSE !(!cond) [L88] RET assume_abort_if_not(var_1_16 >= 1) VAL [isInitial=1, last_1_var_1_6=2, var_1_10=2147483647, var_1_11=4, var_1_12=19, var_1_13=31, var_1_14=0, var_1_15=1, var_1_16=1, var_1_17=162/5, var_1_18=31/2, var_1_1=25, var_1_6=2, var_1_7=2147483647, var_1_8=2147483647] [L89] CALL assume_abort_if_not(var_1_16 <= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_6=2, var_1_10=2147483647, var_1_11=4, var_1_12=19, var_1_13=31, var_1_14=0, var_1_15=1, var_1_16=1, var_1_17=162/5, var_1_18=31/2, var_1_1=25, var_1_6=2, var_1_7=2147483647, var_1_8=2147483647] [L20] COND FALSE !(!cond) [L89] RET assume_abort_if_not(var_1_16 <= 1) VAL [isInitial=1, last_1_var_1_6=2, var_1_10=2147483647, var_1_11=4, var_1_12=19, var_1_13=31, var_1_14=0, var_1_15=1, var_1_16=1, var_1_17=162/5, var_1_18=31/2, var_1_1=25, var_1_6=2, var_1_7=2147483647, var_1_8=2147483647] [L90] var_1_18 = __VERIFIER_nondet_double() [L91] CALL assume_abort_if_not((var_1_18 >= -922337.2036854765600e+13F && var_1_18 <= -1.0e-20F) || (var_1_18 <= 9223372.036854765600e+12F && var_1_18 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_6=2, var_1_10=2147483647, var_1_11=4, var_1_12=19, var_1_13=31, var_1_14=0, var_1_15=1, var_1_16=1, var_1_17=162/5, var_1_1=25, var_1_6=2, var_1_7=2147483647, var_1_8=2147483647] [L20] COND FALSE !(!cond) [L91] RET assume_abort_if_not((var_1_18 >= -922337.2036854765600e+13F && var_1_18 <= -1.0e-20F) || (var_1_18 <= 9223372.036854765600e+12F && var_1_18 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_6=2, var_1_10=2147483647, var_1_11=4, var_1_12=19, var_1_13=31, var_1_14=0, var_1_15=1, var_1_16=1, var_1_17=162/5, var_1_1=25, var_1_6=2, var_1_7=2147483647, var_1_8=2147483647] [L105] RET updateVariables() [L106] CALL step() [L40] var_1_15 = var_1_16 [L41] var_1_17 = var_1_18 [L42] COND TRUE \read(var_1_15) [L43] var_1_11 = (((var_1_12 + var_1_13) + var_1_14) - 50) [L45] COND TRUE \read(var_1_15) [L46] var_1_1 = (((((var_1_11 + var_1_11)) < (var_1_11)) ? ((var_1_11 + var_1_11)) : (var_1_11))) [L48] signed long int stepLocal_2 = (((var_1_11) < (var_1_11)) ? (var_1_11) : (var_1_11)); [L49] signed long int stepLocal_1 = (((var_1_11) > (var_1_11)) ? (var_1_11) : (var_1_11)); [L50] unsigned long int stepLocal_0 = var_1_7 - var_1_8; [L51] COND TRUE last_1_var_1_6 != stepLocal_2 [L52] COND TRUE stepLocal_0 >= var_1_9 [L53] EXPR var_1_8 >> var_1_9 [L53] COND TRUE stepLocal_1 < (var_1_8 >> var_1_9) [L54] var_1_6 = var_1_8 [L106] RET step() [L107] CALL, EXPR property() [L97] EXPR (var_1_15 ? (var_1_1 == ((signed short int) (((((var_1_11 + var_1_11)) < (var_1_11)) ? ((var_1_11 + var_1_11)) : (var_1_11))))) : 1) && ((last_1_var_1_6 != ((((var_1_11) < (var_1_11)) ? (var_1_11) : (var_1_11)))) ? (((var_1_7 - var_1_8) >= var_1_9) ? ((((((var_1_11) > (var_1_11)) ? (var_1_11) : (var_1_11))) < (var_1_8 >> var_1_9)) ? (var_1_6 == ((unsigned long int) var_1_8)) : (var_1_6 == ((unsigned long int) var_1_10))) : (var_1_6 == ((unsigned long int) var_1_10))) : (var_1_6 == ((unsigned long int) var_1_8))) [L97] EXPR (last_1_var_1_6 != ((((var_1_11) < (var_1_11)) ? (var_1_11) : (var_1_11)))) ? (((var_1_7 - var_1_8) >= var_1_9) ? ((((((var_1_11) > (var_1_11)) ? (var_1_11) : (var_1_11))) < (var_1_8 >> var_1_9)) ? (var_1_6 == ((unsigned long int) var_1_8)) : (var_1_6 == ((unsigned long int) var_1_10))) : (var_1_6 == ((unsigned long int) var_1_10))) : (var_1_6 == ((unsigned long int) var_1_8)) [L97] EXPR ((var_1_7 - var_1_8) >= var_1_9) ? ((((((var_1_11) > (var_1_11)) ? (var_1_11) : (var_1_11))) < (var_1_8 >> var_1_9)) ? (var_1_6 == ((unsigned long int) var_1_8)) : (var_1_6 == ((unsigned long int) var_1_10))) : (var_1_6 == ((unsigned long int) var_1_10)) [L97] EXPR var_1_8 >> var_1_9 [L97] EXPR ((var_1_7 - var_1_8) >= var_1_9) ? ((((((var_1_11) > (var_1_11)) ? (var_1_11) : (var_1_11))) < (var_1_8 >> var_1_9)) ? (var_1_6 == ((unsigned long int) var_1_8)) : (var_1_6 == ((unsigned long int) var_1_10))) : (var_1_6 == ((unsigned long int) var_1_10)) [L97] EXPR (last_1_var_1_6 != ((((var_1_11) < (var_1_11)) ? (var_1_11) : (var_1_11)))) ? (((var_1_7 - var_1_8) >= var_1_9) ? ((((((var_1_11) > (var_1_11)) ? (var_1_11) : (var_1_11))) < (var_1_8 >> var_1_9)) ? (var_1_6 == ((unsigned long int) var_1_8)) : (var_1_6 == ((unsigned long int) var_1_10))) : (var_1_6 == ((unsigned long int) var_1_10))) : (var_1_6 == ((unsigned long int) var_1_8)) [L97] EXPR (var_1_15 ? (var_1_1 == ((signed short int) (((((var_1_11 + var_1_11)) < (var_1_11)) ? ((var_1_11 + var_1_11)) : (var_1_11))))) : 1) && ((last_1_var_1_6 != ((((var_1_11) < (var_1_11)) ? (var_1_11) : (var_1_11)))) ? (((var_1_7 - var_1_8) >= var_1_9) ? ((((((var_1_11) > (var_1_11)) ? (var_1_11) : (var_1_11))) < (var_1_8 >> var_1_9)) ? (var_1_6 == ((unsigned long int) var_1_8)) : (var_1_6 == ((unsigned long int) var_1_10))) : (var_1_6 == ((unsigned long int) var_1_10))) : (var_1_6 == ((unsigned long int) var_1_8))) [L97-L98] return ((((var_1_15 ? (var_1_1 == ((signed short int) (((((var_1_11 + var_1_11)) < (var_1_11)) ? ((var_1_11 + var_1_11)) : (var_1_11))))) : 1) && ((last_1_var_1_6 != ((((var_1_11) < (var_1_11)) ? (var_1_11) : (var_1_11)))) ? (((var_1_7 - var_1_8) >= var_1_9) ? ((((((var_1_11) > (var_1_11)) ? (var_1_11) : (var_1_11))) < (var_1_8 >> var_1_9)) ? (var_1_6 == ((unsigned long int) var_1_8)) : (var_1_6 == ((unsigned long int) var_1_10))) : (var_1_6 == ((unsigned long int) var_1_10))) : (var_1_6 == ((unsigned long int) var_1_8)))) && (var_1_15 ? (var_1_11 == ((signed char) (((var_1_12 + var_1_13) + var_1_14) - 50))) : 1)) && (var_1_15 == ((unsigned char) var_1_16))) && (var_1_17 == ((double) var_1_18)) ; [L107] RET, EXPR property() [L107] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [\old(cond)=0, cond=0, isInitial=1, last_1_var_1_6=2, var_1_10=2147483647, var_1_11=0, var_1_12=19, var_1_13=31, var_1_14=0, var_1_15=1, var_1_16=1, var_1_17=6442450948, var_1_18=6442450948, var_1_1=0, var_1_6=2147483647, var_1_7=2147483647, var_1_8=2147483647, var_1_9=0] [L19] reach_error() VAL [\old(cond)=0, cond=0, isInitial=1, last_1_var_1_6=2, var_1_10=2147483647, var_1_11=0, var_1_12=19, var_1_13=31, var_1_14=0, var_1_15=1, var_1_16=1, var_1_17=6442450948, var_1_18=6442450948, var_1_1=0, var_1_6=2147483647, var_1_7=2147483647, var_1_8=2147483647, var_1_9=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 35 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.5s, OverallIterations: 1, TraceHistogramMax: 17, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=35occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 64 NumberOfCodeBlocks, 64 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2023-12-02 16:35:24,562 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b76f39d-9932-409a-9e4c-97792f2ad675/bin/utaipan-verify-nQ1chXbOIh/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 Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### 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_4b76f39d-9932-409a-9e4c-97792f2ad675/bin/utaipan-verify-nQ1chXbOIh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b76f39d-9932-409a-9e4c-97792f2ad675/bin/utaipan-verify-nQ1chXbOIh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b76f39d-9932-409a-9e4c-97792f2ad675/bin/utaipan-verify-nQ1chXbOIh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b76f39d-9932-409a-9e4c-97792f2ad675/bin/utaipan-verify-nQ1chXbOIh/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-90.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b76f39d-9932-409a-9e4c-97792f2ad675/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b76f39d-9932-409a-9e4c-97792f2ad675/bin/utaipan-verify-nQ1chXbOIh --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 5e76bf897418c531679e53fa28b7c04d453b1c5b37fbed71b943af641f77aed6 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 16:35:26,493 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 16:35:26,563 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b76f39d-9932-409a-9e4c-97792f2ad675/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2023-12-02 16:35:26,569 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-02 16:35:26,569 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-02 16:35:26,596 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 16:35:26,597 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-02 16:35:26,598 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-02 16:35:26,598 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-02 16:35:26,599 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-02 16:35:26,599 INFO L153 SettingsManager]: * User list type=DISABLED [2023-12-02 16:35:26,600 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-12-02 16:35:26,600 INFO L153 SettingsManager]: * Explicit value domain=true [2023-12-02 16:35:26,601 INFO L153 SettingsManager]: * Octagon Domain=false [2023-12-02 16:35:26,601 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-12-02 16:35:26,602 INFO L153 SettingsManager]: * Interval Domain=false [2023-12-02 16:35:26,603 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 16:35:26,603 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-02 16:35:26,604 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-02 16:35:26,604 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-02 16:35:26,605 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 16:35:26,605 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-02 16:35:26,606 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 16:35:26,606 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-02 16:35:26,607 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-02 16:35:26,607 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-02 16:35:26,607 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-02 16:35:26,608 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-02 16:35:26,608 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-02 16:35:26,609 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 16:35:26,609 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 16:35:26,609 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-02 16:35:26,610 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-02 16:35:26,610 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-02 16:35:26,611 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 16:35:26,611 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 16:35:26,611 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 16:35:26,611 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-02 16:35:26,612 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-12-02 16:35:26,612 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-02 16:35:26,612 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-02 16:35:26,612 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-02 16:35:26,612 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-12-02 16:35:26,613 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-02 16:35:26,613 INFO L153 SettingsManager]: * Logic for external solver=AUFBV 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_4b76f39d-9932-409a-9e4c-97792f2ad675/bin/utaipan-verify-nQ1chXbOIh/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b76f39d-9932-409a-9e4c-97792f2ad675/bin/utaipan-verify-nQ1chXbOIh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5e76bf897418c531679e53fa28b7c04d453b1c5b37fbed71b943af641f77aed6 [2023-12-02 16:35:26,938 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 16:35:26,959 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 16:35:26,962 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 16:35:26,963 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 16:35:26,963 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 16:35:26,965 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b76f39d-9932-409a-9e4c-97792f2ad675/bin/utaipan-verify-nQ1chXbOIh/../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-90.i [2023-12-02 16:35:29,683 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 16:35:29,899 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 16:35:29,899 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b76f39d-9932-409a-9e4c-97792f2ad675/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-90.i [2023-12-02 16:35:29,909 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b76f39d-9932-409a-9e4c-97792f2ad675/bin/utaipan-verify-nQ1chXbOIh/data/68a144eae/514bcef45d5046a38eb5c72f6239aaef/FLAGea5dc0ca7 [2023-12-02 16:35:29,921 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b76f39d-9932-409a-9e4c-97792f2ad675/bin/utaipan-verify-nQ1chXbOIh/data/68a144eae/514bcef45d5046a38eb5c72f6239aaef [2023-12-02 16:35:29,922 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 16:35:29,924 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 16:35:29,925 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 16:35:29,925 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 16:35:29,929 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 16:35:29,930 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 04:35:29" (1/1) ... [2023-12-02 16:35:29,931 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2b4a3924 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:35:29, skipping insertion in model container [2023-12-02 16:35:29,931 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 04:35:29" (1/1) ... [2023-12-02 16:35:29,958 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 16:35:30,112 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_4b76f39d-9932-409a-9e4c-97792f2ad675/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-90.i[915,928] [2023-12-02 16:35:30,151 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 16:35:30,169 INFO L202 MainTranslator]: Completed pre-run [2023-12-02 16:35:30,182 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_4b76f39d-9932-409a-9e4c-97792f2ad675/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-90.i[915,928] [2023-12-02 16:35:30,203 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 16:35:30,222 INFO L206 MainTranslator]: Completed translation [2023-12-02 16:35:30,222 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:35:30 WrapperNode [2023-12-02 16:35:30,222 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 16:35:30,223 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-02 16:35:30,224 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-02 16:35:30,224 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-02 16:35:30,231 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:35:30" (1/1) ... [2023-12-02 16:35:30,243 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:35:30" (1/1) ... [2023-12-02 16:35:30,268 INFO L138 Inliner]: procedures = 27, calls = 30, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 110 [2023-12-02 16:35:30,268 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-02 16:35:30,269 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-02 16:35:30,269 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-02 16:35:30,269 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-02 16:35:30,278 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:35:30" (1/1) ... [2023-12-02 16:35:30,279 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:35:30" (1/1) ... [2023-12-02 16:35:30,283 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:35:30" (1/1) ... [2023-12-02 16:35:30,283 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:35:30" (1/1) ... [2023-12-02 16:35:30,292 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:35:30" (1/1) ... [2023-12-02 16:35:30,295 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:35:30" (1/1) ... [2023-12-02 16:35:30,298 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:35:30" (1/1) ... [2023-12-02 16:35:30,300 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:35:30" (1/1) ... [2023-12-02 16:35:30,304 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-02 16:35:30,305 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-02 16:35:30,305 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-02 16:35:30,305 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-02 16:35:30,306 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:35:30" (1/1) ... [2023-12-02 16:35:30,312 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 16:35:30,324 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b76f39d-9932-409a-9e4c-97792f2ad675/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 16:35:30,349 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b76f39d-9932-409a-9e4c-97792f2ad675/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-12-02 16:35:30,365 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b76f39d-9932-409a-9e4c-97792f2ad675/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-12-02 16:35:30,398 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-02 16:35:30,398 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-12-02 16:35:30,398 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-02 16:35:30,399 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-02 16:35:30,399 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-02 16:35:30,399 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-02 16:35:30,484 INFO L241 CfgBuilder]: Building ICFG [2023-12-02 16:35:30,486 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-02 16:35:30,686 INFO L282 CfgBuilder]: Performing block encoding [2023-12-02 16:35:30,733 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-02 16:35:30,733 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-02 16:35:30,734 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 04:35:30 BoogieIcfgContainer [2023-12-02 16:35:30,734 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-02 16:35:30,737 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-02 16:35:30,737 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-02 16:35:30,740 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-02 16:35:30,740 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 04:35:29" (1/3) ... [2023-12-02 16:35:30,741 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c2a71ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 04:35:30, skipping insertion in model container [2023-12-02 16:35:30,741 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:35:30" (2/3) ... [2023-12-02 16:35:30,742 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c2a71ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 04:35:30, skipping insertion in model container [2023-12-02 16:35:30,742 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 04:35:30" (3/3) ... [2023-12-02 16:35:30,743 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_loopvsstraightlinecode_25-while_file-90.i [2023-12-02 16:35:30,762 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-02 16:35:30,762 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-02 16:35:30,811 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-02 16:35:30,819 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;@5da2cf9c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-02 16:35:30,819 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-02 16:35:30,823 INFO L276 IsEmpty]: Start isEmpty. Operand has 45 states, 25 states have (on average 1.4) internal successors, (35), 26 states have internal predecessors, (35), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2023-12-02 16:35:30,836 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2023-12-02 16:35:30,837 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 16:35:30,837 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 16:35:30,838 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 16:35:30,843 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 16:35:30,843 INFO L85 PathProgramCache]: Analyzing trace with hash 1197207762, now seen corresponding path program 1 times [2023-12-02 16:35:30,856 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 16:35:30,856 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1521851202] [2023-12-02 16:35:30,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:35:30,857 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-02 16:35:30,857 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b76f39d-9932-409a-9e4c-97792f2ad675/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 16:35:30,860 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b76f39d-9932-409a-9e4c-97792f2ad675/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-02 16:35:30,861 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b76f39d-9932-409a-9e4c-97792f2ad675/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2023-12-02 16:35:31,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:35:31,027 INFO L262 TraceCheckSpWp]: Trace formula consists of 174 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-02 16:35:31,037 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 16:35:31,081 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 92 proven. 0 refuted. 0 times theorem prover too weak. 452 trivial. 0 not checked. [2023-12-02 16:35:31,081 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 16:35:31,082 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 16:35:31,082 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1521851202] [2023-12-02 16:35:31,083 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1521851202] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 16:35:31,083 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 16:35:31,083 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-02 16:35:31,085 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1721273939] [2023-12-02 16:35:31,085 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 16:35:31,090 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-02 16:35:31,090 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 16:35:31,116 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-02 16:35:31,117 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-02 16:35:31,120 INFO L87 Difference]: Start difference. First operand has 45 states, 25 states have (on average 1.4) internal successors, (35), 26 states have internal predecessors, (35), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) Second operand has 2 states, 2 states have (on average 12.5) internal successors, (25), 2 states have internal predecessors, (25), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2023-12-02 16:35:31,164 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 16:35:31,165 INFO L93 Difference]: Finished difference Result 87 states and 153 transitions. [2023-12-02 16:35:31,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-02 16:35:31,168 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 12.5) internal successors, (25), 2 states have internal predecessors, (25), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 103 [2023-12-02 16:35:31,169 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 16:35:31,176 INFO L225 Difference]: With dead ends: 87 [2023-12-02 16:35:31,177 INFO L226 Difference]: Without dead ends: 43 [2023-12-02 16:35:31,180 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 102 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-02 16:35:31,194 INFO L413 NwaCegarLoop]: 61 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 61 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-02 16:35:31,195 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 61 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-02 16:35:31,211 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2023-12-02 16:35:31,233 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 43. [2023-12-02 16:35:31,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43 states, 24 states have (on average 1.25) internal successors, (30), 24 states have internal predecessors, (30), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2023-12-02 16:35:31,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 64 transitions. [2023-12-02 16:35:31,238 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 64 transitions. Word has length 103 [2023-12-02 16:35:31,238 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 16:35:31,238 INFO L495 AbstractCegarLoop]: Abstraction has 43 states and 64 transitions. [2023-12-02 16:35:31,239 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 12.5) internal successors, (25), 2 states have internal predecessors, (25), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2023-12-02 16:35:31,239 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 64 transitions. [2023-12-02 16:35:31,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2023-12-02 16:35:31,242 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 16:35:31,242 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 16:35:31,249 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b76f39d-9932-409a-9e4c-97792f2ad675/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2023-12-02 16:35:31,442 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b76f39d-9932-409a-9e4c-97792f2ad675/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-02 16:35:31,443 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 16:35:31,444 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 16:35:31,444 INFO L85 PathProgramCache]: Analyzing trace with hash -1966328236, now seen corresponding path program 1 times [2023-12-02 16:35:31,444 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 16:35:31,445 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [272040299] [2023-12-02 16:35:31,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:35:31,445 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-02 16:35:31,445 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b76f39d-9932-409a-9e4c-97792f2ad675/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 16:35:31,447 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b76f39d-9932-409a-9e4c-97792f2ad675/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-02 16:35:31,448 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b76f39d-9932-409a-9e4c-97792f2ad675/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2023-12-02 16:35:31,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:35:31,589 INFO L262 TraceCheckSpWp]: Trace formula consists of 174 conjuncts, 36 conjunts are in the unsatisfiable core [2023-12-02 16:35:31,601 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 16:35:39,916 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 382 proven. 36 refuted. 0 times theorem prover too weak. 126 trivial. 0 not checked. [2023-12-02 16:35:39,916 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 16:35:49,890 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 48 proven. 0 refuted. 0 times theorem prover too weak. 496 trivial. 0 not checked. [2023-12-02 16:35:49,891 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 16:35:49,891 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [272040299] [2023-12-02 16:35:49,891 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [272040299] provided 1 perfect and 1 imperfect interpolant sequences [2023-12-02 16:35:49,891 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-02 16:35:49,891 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [30] total 40 [2023-12-02 16:35:49,892 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2109728279] [2023-12-02 16:35:49,892 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 16:35:49,893 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-12-02 16:35:49,893 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 16:35:49,894 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-12-02 16:35:49,895 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=279, Invalid=1281, Unknown=0, NotChecked=0, Total=1560 [2023-12-02 16:35:49,896 INFO L87 Difference]: Start difference. First operand 43 states and 64 transitions. Second operand has 11 states, 11 states have (on average 2.1818181818181817) internal successors, (24), 10 states have internal predecessors, (24), 1 states have call successors, (17), 1 states have call predecessors, (17), 2 states have return successors, (17), 2 states have call predecessors, (17), 1 states have call successors, (17) [2023-12-02 16:35:53,729 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 16:35:53,729 INFO L93 Difference]: Finished difference Result 79 states and 111 transitions. [2023-12-02 16:35:53,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-02 16:35:53,730 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 2.1818181818181817) internal successors, (24), 10 states have internal predecessors, (24), 1 states have call successors, (17), 1 states have call predecessors, (17), 2 states have return successors, (17), 2 states have call predecessors, (17), 1 states have call successors, (17) Word has length 103 [2023-12-02 16:35:53,731 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 16:35:53,732 INFO L225 Difference]: With dead ends: 79 [2023-12-02 16:35:53,733 INFO L226 Difference]: Without dead ends: 77 [2023-12-02 16:35:53,734 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 212 GetRequests, 167 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 684 ImplicationChecksByTransitivity, 6.6s TimeCoverageRelationStatistics Valid=365, Invalid=1797, Unknown=0, NotChecked=0, Total=2162 [2023-12-02 16:35:53,735 INFO L413 NwaCegarLoop]: 60 mSDtfsCounter, 115 mSDsluCounter, 142 mSDsCounter, 0 mSdLazyCounter, 303 mSolverCounterSat, 80 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 202 SdHoareTripleChecker+Invalid, 383 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 80 IncrementalHoareTripleChecker+Valid, 303 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2023-12-02 16:35:53,736 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [115 Valid, 202 Invalid, 383 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [80 Valid, 303 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2023-12-02 16:35:53,737 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2023-12-02 16:35:53,757 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 65. [2023-12-02 16:35:53,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65 states, 37 states have (on average 1.2162162162162162) internal successors, (45), 38 states have internal predecessors, (45), 25 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (25), 24 states have call predecessors, (25), 25 states have call successors, (25) [2023-12-02 16:35:53,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 95 transitions. [2023-12-02 16:35:53,760 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 95 transitions. Word has length 103 [2023-12-02 16:35:53,760 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 16:35:53,761 INFO L495 AbstractCegarLoop]: Abstraction has 65 states and 95 transitions. [2023-12-02 16:35:53,761 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 2.1818181818181817) internal successors, (24), 10 states have internal predecessors, (24), 1 states have call successors, (17), 1 states have call predecessors, (17), 2 states have return successors, (17), 2 states have call predecessors, (17), 1 states have call successors, (17) [2023-12-02 16:35:53,761 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 95 transitions. [2023-12-02 16:35:53,763 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2023-12-02 16:35:53,763 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 16:35:53,763 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 16:35:53,767 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b76f39d-9932-409a-9e4c-97792f2ad675/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2023-12-02 16:35:53,964 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b76f39d-9932-409a-9e4c-97792f2ad675/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-02 16:35:53,964 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 16:35:53,965 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 16:35:53,965 INFO L85 PathProgramCache]: Analyzing trace with hash -191320874, now seen corresponding path program 1 times [2023-12-02 16:35:53,966 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 16:35:53,966 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [882725422] [2023-12-02 16:35:53,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:35:53,966 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-02 16:35:53,966 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b76f39d-9932-409a-9e4c-97792f2ad675/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 16:35:53,997 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b76f39d-9932-409a-9e4c-97792f2ad675/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-02 16:35:53,998 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b76f39d-9932-409a-9e4c-97792f2ad675/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2023-12-02 16:35:54,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:35:54,087 INFO L262 TraceCheckSpWp]: Trace formula consists of 173 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-02 16:35:54,092 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 16:35:54,184 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 160 proven. 6 refuted. 0 times theorem prover too weak. 378 trivial. 0 not checked. [2023-12-02 16:35:54,185 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 16:35:54,301 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 42 proven. 6 refuted. 0 times theorem prover too weak. 496 trivial. 0 not checked. [2023-12-02 16:35:54,301 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 16:35:54,301 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [882725422] [2023-12-02 16:35:54,302 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [882725422] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 16:35:54,302 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1925289230] [2023-12-02 16:35:54,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:35:54,302 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 16:35:54,303 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b76f39d-9932-409a-9e4c-97792f2ad675/bin/utaipan-verify-nQ1chXbOIh/cvc4 [2023-12-02 16:35:54,304 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b76f39d-9932-409a-9e4c-97792f2ad675/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 16:35:54,313 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b76f39d-9932-409a-9e4c-97792f2ad675/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (5)] Waiting until timeout for monitored process [2023-12-02 16:35:54,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:35:54,518 INFO L262 TraceCheckSpWp]: Trace formula consists of 173 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-02 16:35:54,521 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 16:35:54,539 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2023-12-02 16:35:54,539 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 16:35:54,540 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1925289230] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 16:35:54,540 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2023-12-02 16:35:54,540 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9, 6] total 13 [2023-12-02 16:35:54,540 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1135897961] [2023-12-02 16:35:54,540 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 16:35:54,541 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 16:35:54,541 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 16:35:54,542 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 16:35:54,542 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=115, Unknown=0, NotChecked=0, Total=156 [2023-12-02 16:35:54,542 INFO L87 Difference]: Start difference. First operand 65 states and 95 transitions. Second operand has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2023-12-02 16:35:54,613 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 16:35:54,613 INFO L93 Difference]: Finished difference Result 188 states and 274 transitions. [2023-12-02 16:35:54,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 16:35:54,614 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 103 [2023-12-02 16:35:54,615 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 16:35:54,617 INFO L225 Difference]: With dead ends: 188 [2023-12-02 16:35:54,617 INFO L226 Difference]: Without dead ends: 124 [2023-12-02 16:35:54,618 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 306 GetRequests, 294 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=115, Unknown=0, NotChecked=0, Total=156 [2023-12-02 16:35:54,620 INFO L413 NwaCegarLoop]: 116 mSDtfsCounter, 58 mSDsluCounter, 56 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 172 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-02 16:35:54,620 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [58 Valid, 172 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-02 16:35:54,621 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124 states. [2023-12-02 16:35:54,642 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124 to 65. [2023-12-02 16:35:54,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65 states, 37 states have (on average 1.1891891891891893) internal successors, (44), 38 states have internal predecessors, (44), 25 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (25), 24 states have call predecessors, (25), 25 states have call successors, (25) [2023-12-02 16:35:54,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 94 transitions. [2023-12-02 16:35:54,644 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 94 transitions. Word has length 103 [2023-12-02 16:35:54,644 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 16:35:54,645 INFO L495 AbstractCegarLoop]: Abstraction has 65 states and 94 transitions. [2023-12-02 16:35:54,645 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2023-12-02 16:35:54,645 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 94 transitions. [2023-12-02 16:35:54,646 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2023-12-02 16:35:54,647 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 16:35:54,647 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 16:35:54,653 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b76f39d-9932-409a-9e4c-97792f2ad675/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (5)] Forceful destruction successful, exit code 0 [2023-12-02 16:35:54,855 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b76f39d-9932-409a-9e4c-97792f2ad675/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Ended with exit code 0 [2023-12-02 16:35:55,053 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b76f39d-9932-409a-9e4c-97792f2ad675/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b76f39d-9932-409a-9e4c-97792f2ad675/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-02 16:35:55,053 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 16:35:55,054 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 16:35:55,054 INFO L85 PathProgramCache]: Analyzing trace with hash -134062572, now seen corresponding path program 1 times [2023-12-02 16:35:55,054 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 16:35:55,054 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [643522896] [2023-12-02 16:35:55,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:35:55,055 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-02 16:35:55,055 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b76f39d-9932-409a-9e4c-97792f2ad675/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 16:35:55,056 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b76f39d-9932-409a-9e4c-97792f2ad675/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-02 16:35:55,057 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b76f39d-9932-409a-9e4c-97792f2ad675/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2023-12-02 16:35:55,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:35:55,137 INFO L262 TraceCheckSpWp]: Trace formula consists of 172 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-02 16:35:55,140 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 16:35:55,221 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 160 proven. 6 refuted. 0 times theorem prover too weak. 378 trivial. 0 not checked. [2023-12-02 16:35:55,222 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 16:35:55,327 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 42 proven. 6 refuted. 0 times theorem prover too weak. 496 trivial. 0 not checked. [2023-12-02 16:35:55,327 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 16:35:55,327 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [643522896] [2023-12-02 16:35:55,328 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [643522896] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 16:35:55,328 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1824477213] [2023-12-02 16:35:55,328 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:35:55,328 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 16:35:55,328 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b76f39d-9932-409a-9e4c-97792f2ad675/bin/utaipan-verify-nQ1chXbOIh/cvc4 [2023-12-02 16:35:55,329 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b76f39d-9932-409a-9e4c-97792f2ad675/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 16:35:55,333 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b76f39d-9932-409a-9e4c-97792f2ad675/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (7)] Waiting until timeout for monitored process [2023-12-02 16:35:55,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:35:55,692 INFO L262 TraceCheckSpWp]: Trace formula consists of 172 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-02 16:35:55,695 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 16:35:56,085 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2023-12-02 16:35:56,085 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 16:35:56,085 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1824477213] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 16:35:56,085 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2023-12-02 16:35:56,086 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [9, 6] total 15 [2023-12-02 16:35:56,086 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1616938266] [2023-12-02 16:35:56,086 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 16:35:56,086 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-02 16:35:56,087 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 16:35:56,087 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-02 16:35:56,087 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=165, Unknown=0, NotChecked=0, Total=210 [2023-12-02 16:35:56,088 INFO L87 Difference]: Start difference. First operand 65 states and 94 transitions. Second operand has 5 states, 5 states have (on average 4.2) internal successors, (21), 4 states have internal predecessors, (21), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2023-12-02 16:35:56,343 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 16:35:56,343 INFO L93 Difference]: Finished difference Result 172 states and 250 transitions. [2023-12-02 16:35:56,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-02 16:35:56,344 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.2) internal successors, (21), 4 states have internal predecessors, (21), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 103 [2023-12-02 16:35:56,345 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 16:35:56,346 INFO L225 Difference]: With dead ends: 172 [2023-12-02 16:35:56,346 INFO L226 Difference]: Without dead ends: 108 [2023-12-02 16:35:56,348 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 309 GetRequests, 292 SyntacticMatches, 1 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=60, Invalid=246, Unknown=0, NotChecked=0, Total=306 [2023-12-02 16:35:56,349 INFO L413 NwaCegarLoop]: 70 mSDtfsCounter, 34 mSDsluCounter, 142 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 212 SdHoareTripleChecker+Invalid, 105 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-02 16:35:56,349 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 212 Invalid, 105 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-02 16:35:56,350 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108 states. [2023-12-02 16:35:56,377 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108 to 100. [2023-12-02 16:35:56,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 100 states, 54 states have (on average 1.1481481481481481) internal successors, (62), 55 states have internal predecessors, (62), 42 states have call successors, (42), 3 states have call predecessors, (42), 3 states have return successors, (42), 41 states have call predecessors, (42), 42 states have call successors, (42) [2023-12-02 16:35:56,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 146 transitions. [2023-12-02 16:35:56,379 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 146 transitions. Word has length 103 [2023-12-02 16:35:56,380 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 16:35:56,380 INFO L495 AbstractCegarLoop]: Abstraction has 100 states and 146 transitions. [2023-12-02 16:35:56,380 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.2) internal successors, (21), 4 states have internal predecessors, (21), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2023-12-02 16:35:56,380 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 146 transitions. [2023-12-02 16:35:56,382 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2023-12-02 16:35:56,382 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 16:35:56,383 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 16:35:56,386 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b76f39d-9932-409a-9e4c-97792f2ad675/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Ended with exit code 0 [2023-12-02 16:35:56,588 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b76f39d-9932-409a-9e4c-97792f2ad675/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (7)] Ended with exit code 0 [2023-12-02 16:35:56,786 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b76f39d-9932-409a-9e4c-97792f2ad675/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b76f39d-9932-409a-9e4c-97792f2ad675/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt [2023-12-02 16:35:56,786 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 16:35:56,787 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 16:35:56,787 INFO L85 PathProgramCache]: Analyzing trace with hash -841647817, now seen corresponding path program 1 times [2023-12-02 16:35:56,787 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 16:35:56,787 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [652590123] [2023-12-02 16:35:56,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:35:56,787 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-02 16:35:56,787 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b76f39d-9932-409a-9e4c-97792f2ad675/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 16:35:56,788 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b76f39d-9932-409a-9e4c-97792f2ad675/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-02 16:35:56,789 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b76f39d-9932-409a-9e4c-97792f2ad675/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2023-12-02 16:35:56,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:35:56,903 INFO L262 TraceCheckSpWp]: Trace formula consists of 175 conjuncts, 39 conjunts are in the unsatisfiable core [2023-12-02 16:35:56,907 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 16:36:05,319 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 441 proven. 54 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2023-12-02 16:36:05,319 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 16:36:16,768 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 48 proven. 0 refuted. 0 times theorem prover too weak. 496 trivial. 0 not checked. [2023-12-02 16:36:16,768 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 16:36:16,768 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [652590123] [2023-12-02 16:36:16,769 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [652590123] provided 1 perfect and 1 imperfect interpolant sequences [2023-12-02 16:36:16,769 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-02 16:36:16,769 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [33] total 44 [2023-12-02 16:36:16,769 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1047457849] [2023-12-02 16:36:16,769 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 16:36:16,770 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-12-02 16:36:16,770 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 16:36:16,771 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-12-02 16:36:16,772 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=344, Invalid=1548, Unknown=0, NotChecked=0, Total=1892 [2023-12-02 16:36:16,772 INFO L87 Difference]: Start difference. First operand 100 states and 146 transitions. Second operand has 12 states, 12 states have (on average 2.0833333333333335) internal successors, (25), 11 states have internal predecessors, (25), 1 states have call successors, (17), 1 states have call predecessors, (17), 2 states have return successors, (17), 2 states have call predecessors, (17), 1 states have call successors, (17) [2023-12-02 16:36:19,773 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 16:36:19,773 INFO L93 Difference]: Finished difference Result 123 states and 165 transitions. [2023-12-02 16:36:19,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-02 16:36:19,775 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 2.0833333333333335) internal successors, (25), 11 states have internal predecessors, (25), 1 states have call successors, (17), 1 states have call predecessors, (17), 2 states have return successors, (17), 2 states have call predecessors, (17), 1 states have call successors, (17) Word has length 104 [2023-12-02 16:36:19,775 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 16:36:19,776 INFO L225 Difference]: With dead ends: 123 [2023-12-02 16:36:19,776 INFO L226 Difference]: Without dead ends: 121 [2023-12-02 16:36:19,777 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 211 GetRequests, 164 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 785 ImplicationChecksByTransitivity, 5.8s TimeCoverageRelationStatistics Valid=398, Invalid=1954, Unknown=0, NotChecked=0, Total=2352 [2023-12-02 16:36:19,778 INFO L413 NwaCegarLoop]: 87 mSDtfsCounter, 136 mSDsluCounter, 139 mSDsCounter, 0 mSdLazyCounter, 354 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 136 SdHoareTripleChecker+Valid, 226 SdHoareTripleChecker+Invalid, 408 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 354 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2023-12-02 16:36:19,778 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [136 Valid, 226 Invalid, 408 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 354 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2023-12-02 16:36:19,779 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121 states. [2023-12-02 16:36:19,800 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121 to 99. [2023-12-02 16:36:19,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 99 states, 58 states have (on average 1.1379310344827587) internal successors, (66), 58 states have internal predecessors, (66), 34 states have call successors, (34), 6 states have call predecessors, (34), 6 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2023-12-02 16:36:19,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 134 transitions. [2023-12-02 16:36:19,803 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 134 transitions. Word has length 104 [2023-12-02 16:36:19,803 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 16:36:19,803 INFO L495 AbstractCegarLoop]: Abstraction has 99 states and 134 transitions. [2023-12-02 16:36:19,804 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 2.0833333333333335) internal successors, (25), 11 states have internal predecessors, (25), 1 states have call successors, (17), 1 states have call predecessors, (17), 2 states have return successors, (17), 2 states have call predecessors, (17), 1 states have call successors, (17) [2023-12-02 16:36:19,804 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 134 transitions. [2023-12-02 16:36:19,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2023-12-02 16:36:19,805 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 16:36:19,805 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 16:36:19,809 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b76f39d-9932-409a-9e4c-97792f2ad675/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Ended with exit code 0 [2023-12-02 16:36:20,006 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b76f39d-9932-409a-9e4c-97792f2ad675/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-02 16:36:20,006 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 16:36:20,007 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 16:36:20,007 INFO L85 PathProgramCache]: Analyzing trace with hash -330901025, now seen corresponding path program 1 times [2023-12-02 16:36:20,007 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 16:36:20,007 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1391819859] [2023-12-02 16:36:20,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:36:20,008 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-02 16:36:20,008 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b76f39d-9932-409a-9e4c-97792f2ad675/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 16:36:20,009 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b76f39d-9932-409a-9e4c-97792f2ad675/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-02 16:36:20,010 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b76f39d-9932-409a-9e4c-97792f2ad675/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2023-12-02 16:36:20,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:36:20,154 INFO L262 TraceCheckSpWp]: Trace formula consists of 176 conjuncts, 43 conjunts are in the unsatisfiable core [2023-12-02 16:36:20,158 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 16:36:27,673 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 441 proven. 54 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2023-12-02 16:36:27,673 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 16:36:40,018 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 48 proven. 0 refuted. 0 times theorem prover too weak. 496 trivial. 0 not checked. [2023-12-02 16:36:40,018 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 16:36:40,018 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1391819859] [2023-12-02 16:36:40,019 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1391819859] provided 1 perfect and 1 imperfect interpolant sequences [2023-12-02 16:36:40,019 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-02 16:36:40,019 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [35] total 47 [2023-12-02 16:36:40,019 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1921861666] [2023-12-02 16:36:40,019 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 16:36:40,020 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-12-02 16:36:40,020 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 16:36:40,020 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-12-02 16:36:40,021 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=358, Invalid=1804, Unknown=0, NotChecked=0, Total=2162 [2023-12-02 16:36:40,022 INFO L87 Difference]: Start difference. First operand 99 states and 134 transitions. Second operand has 13 states, 13 states have (on average 2.0) internal successors, (26), 12 states have internal predecessors, (26), 1 states have call successors, (17), 1 states have call predecessors, (17), 2 states have return successors, (17), 2 states have call predecessors, (17), 1 states have call successors, (17) [2023-12-02 16:36:49,250 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 16:36:49,250 INFO L93 Difference]: Finished difference Result 129 states and 167 transitions. [2023-12-02 16:36:49,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-12-02 16:36:49,252 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 2.0) internal successors, (26), 12 states have internal predecessors, (26), 1 states have call successors, (17), 1 states have call predecessors, (17), 2 states have return successors, (17), 2 states have call predecessors, (17), 1 states have call successors, (17) Word has length 105 [2023-12-02 16:36:49,253 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 16:36:49,254 INFO L225 Difference]: With dead ends: 129 [2023-12-02 16:36:49,254 INFO L226 Difference]: Without dead ends: 127 [2023-12-02 16:36:49,255 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 221 GetRequests, 164 SyntacticMatches, 0 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1135 ImplicationChecksByTransitivity, 14.1s TimeCoverageRelationStatistics Valid=525, Invalid=2897, Unknown=0, NotChecked=0, Total=3422 [2023-12-02 16:36:49,256 INFO L413 NwaCegarLoop]: 41 mSDtfsCounter, 104 mSDsluCounter, 100 mSDsCounter, 0 mSdLazyCounter, 299 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 104 SdHoareTripleChecker+Valid, 141 SdHoareTripleChecker+Invalid, 339 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 299 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2023-12-02 16:36:49,256 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [104 Valid, 141 Invalid, 339 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 299 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2023-12-02 16:36:49,256 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127 states. [2023-12-02 16:36:49,274 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 127 to 111. [2023-12-02 16:36:49,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 111 states, 67 states have (on average 1.1492537313432836) internal successors, (77), 68 states have internal predecessors, (77), 36 states have call successors, (36), 7 states have call predecessors, (36), 7 states have return successors, (36), 35 states have call predecessors, (36), 36 states have call successors, (36) [2023-12-02 16:36:49,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 149 transitions. [2023-12-02 16:36:49,275 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 149 transitions. Word has length 105 [2023-12-02 16:36:49,276 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 16:36:49,276 INFO L495 AbstractCegarLoop]: Abstraction has 111 states and 149 transitions. [2023-12-02 16:36:49,276 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 2.0) internal successors, (26), 12 states have internal predecessors, (26), 1 states have call successors, (17), 1 states have call predecessors, (17), 2 states have return successors, (17), 2 states have call predecessors, (17), 1 states have call successors, (17) [2023-12-02 16:36:49,276 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 149 transitions. [2023-12-02 16:36:49,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2023-12-02 16:36:49,277 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 16:36:49,277 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 16:36:49,280 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b76f39d-9932-409a-9e4c-97792f2ad675/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Ended with exit code 0 [2023-12-02 16:36:49,478 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b76f39d-9932-409a-9e4c-97792f2ad675/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-02 16:36:49,478 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 16:36:49,478 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 16:36:49,479 INFO L85 PathProgramCache]: Analyzing trace with hash -330841443, now seen corresponding path program 1 times [2023-12-02 16:36:49,479 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 16:36:49,479 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1160668102] [2023-12-02 16:36:49,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:36:49,479 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-02 16:36:49,479 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b76f39d-9932-409a-9e4c-97792f2ad675/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 16:36:49,480 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b76f39d-9932-409a-9e4c-97792f2ad675/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-02 16:36:49,481 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b76f39d-9932-409a-9e4c-97792f2ad675/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2023-12-02 16:36:49,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:36:49,632 INFO L262 TraceCheckSpWp]: Trace formula consists of 176 conjuncts, 39 conjunts are in the unsatisfiable core [2023-12-02 16:36:49,637 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 16:36:59,045 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 441 proven. 54 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2023-12-02 16:36:59,045 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 16:37:13,546 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 48 proven. 0 refuted. 0 times theorem prover too weak. 496 trivial. 0 not checked. [2023-12-02 16:37:13,547 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 16:37:13,547 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1160668102] [2023-12-02 16:37:13,547 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1160668102] provided 1 perfect and 1 imperfect interpolant sequences [2023-12-02 16:37:13,547 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-02 16:37:13,547 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [33] total 44 [2023-12-02 16:37:13,547 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2088944201] [2023-12-02 16:37:13,548 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 16:37:13,548 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-12-02 16:37:13,548 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 16:37:13,549 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-12-02 16:37:13,550 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=356, Invalid=1536, Unknown=0, NotChecked=0, Total=1892 [2023-12-02 16:37:13,550 INFO L87 Difference]: Start difference. First operand 111 states and 149 transitions. Second operand has 12 states, 12 states have (on average 2.1666666666666665) internal successors, (26), 11 states have internal predecessors, (26), 1 states have call successors, (17), 1 states have call predecessors, (17), 2 states have return successors, (17), 2 states have call predecessors, (17), 1 states have call successors, (17) [2023-12-02 16:37:20,153 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 16:37:20,154 INFO L93 Difference]: Finished difference Result 120 states and 158 transitions. [2023-12-02 16:37:20,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-02 16:37:20,155 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 2.1666666666666665) internal successors, (26), 11 states have internal predecessors, (26), 1 states have call successors, (17), 1 states have call predecessors, (17), 2 states have return successors, (17), 2 states have call predecessors, (17), 1 states have call successors, (17) Word has length 105 [2023-12-02 16:37:20,155 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 16:37:20,156 INFO L225 Difference]: With dead ends: 120 [2023-12-02 16:37:20,156 INFO L226 Difference]: Without dead ends: 118 [2023-12-02 16:37:20,157 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 213 GetRequests, 166 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 787 ImplicationChecksByTransitivity, 10.4s TimeCoverageRelationStatistics Valid=409, Invalid=1943, Unknown=0, NotChecked=0, Total=2352 [2023-12-02 16:37:20,158 INFO L413 NwaCegarLoop]: 71 mSDtfsCounter, 123 mSDsluCounter, 93 mSDsCounter, 0 mSdLazyCounter, 288 mSolverCounterSat, 87 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 123 SdHoareTripleChecker+Valid, 164 SdHoareTripleChecker+Invalid, 375 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 87 IncrementalHoareTripleChecker+Valid, 288 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2023-12-02 16:37:20,158 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [123 Valid, 164 Invalid, 375 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [87 Valid, 288 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2023-12-02 16:37:20,159 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states. [2023-12-02 16:37:20,185 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 111. [2023-12-02 16:37:20,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 111 states, 67 states have (on average 1.1492537313432836) internal successors, (77), 68 states have internal predecessors, (77), 36 states have call successors, (36), 7 states have call predecessors, (36), 7 states have return successors, (36), 35 states have call predecessors, (36), 36 states have call successors, (36) [2023-12-02 16:37:20,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 149 transitions. [2023-12-02 16:37:20,186 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 149 transitions. Word has length 105 [2023-12-02 16:37:20,187 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 16:37:20,187 INFO L495 AbstractCegarLoop]: Abstraction has 111 states and 149 transitions. [2023-12-02 16:37:20,187 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 2.1666666666666665) internal successors, (26), 11 states have internal predecessors, (26), 1 states have call successors, (17), 1 states have call predecessors, (17), 2 states have return successors, (17), 2 states have call predecessors, (17), 1 states have call successors, (17) [2023-12-02 16:37:20,188 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 149 transitions. [2023-12-02 16:37:20,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2023-12-02 16:37:20,189 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 16:37:20,190 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 16:37:20,193 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b76f39d-9932-409a-9e4c-97792f2ad675/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Ended with exit code 0 [2023-12-02 16:37:20,392 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b76f39d-9932-409a-9e4c-97792f2ad675/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-02 16:37:20,393 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 16:37:20,393 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 16:37:20,393 INFO L85 PathProgramCache]: Analyzing trace with hash -460189281, now seen corresponding path program 1 times [2023-12-02 16:37:20,393 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 16:37:20,394 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [892835533] [2023-12-02 16:37:20,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:37:20,394 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-02 16:37:20,394 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b76f39d-9932-409a-9e4c-97792f2ad675/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 16:37:20,395 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b76f39d-9932-409a-9e4c-97792f2ad675/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-02 16:37:20,396 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b76f39d-9932-409a-9e4c-97792f2ad675/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2023-12-02 16:37:20,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:37:20,477 INFO L262 TraceCheckSpWp]: Trace formula consists of 174 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-02 16:37:20,479 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 16:37:20,559 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 160 proven. 6 refuted. 0 times theorem prover too weak. 378 trivial. 0 not checked. [2023-12-02 16:37:20,559 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 16:37:20,670 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 42 proven. 6 refuted. 0 times theorem prover too weak. 496 trivial. 0 not checked. [2023-12-02 16:37:20,670 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 16:37:20,670 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [892835533] [2023-12-02 16:37:20,671 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [892835533] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 16:37:20,671 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1294306615] [2023-12-02 16:37:20,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:37:20,671 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 16:37:20,671 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b76f39d-9932-409a-9e4c-97792f2ad675/bin/utaipan-verify-nQ1chXbOIh/cvc4 [2023-12-02 16:37:20,672 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b76f39d-9932-409a-9e4c-97792f2ad675/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 16:37:20,677 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b76f39d-9932-409a-9e4c-97792f2ad675/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (12)] Waiting until timeout for monitored process [2023-12-02 16:37:20,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:37:20,957 INFO L262 TraceCheckSpWp]: Trace formula consists of 174 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-02 16:37:20,959 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 16:37:20,996 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 156 proven. 6 refuted. 0 times theorem prover too weak. 382 trivial. 0 not checked. [2023-12-02 16:37:20,996 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 16:37:21,071 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 42 proven. 6 refuted. 0 times theorem prover too weak. 496 trivial. 0 not checked. [2023-12-02 16:37:21,071 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1294306615] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 16:37:21,071 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1139336037] [2023-12-02 16:37:21,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:37:21,072 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 16:37:21,072 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b76f39d-9932-409a-9e4c-97792f2ad675/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 16:37:21,073 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b76f39d-9932-409a-9e4c-97792f2ad675/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 16:37:21,074 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b76f39d-9932-409a-9e4c-97792f2ad675/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2023-12-02 16:37:21,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:37:21,152 INFO L262 TraceCheckSpWp]: Trace formula consists of 174 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-02 16:37:21,154 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 16:37:21,184 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 156 proven. 6 refuted. 0 times theorem prover too weak. 382 trivial. 0 not checked. [2023-12-02 16:37:21,184 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 16:37:21,242 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 42 proven. 6 refuted. 0 times theorem prover too weak. 496 trivial. 0 not checked. [2023-12-02 16:37:21,242 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1139336037] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 16:37:21,243 INFO L185 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2023-12-02 16:37:21,243 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 6, 6, 6, 6, 6] total 12 [2023-12-02 16:37:21,243 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1906806404] [2023-12-02 16:37:21,243 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2023-12-02 16:37:21,244 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-12-02 16:37:21,244 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 16:37:21,244 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-12-02 16:37:21,244 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2023-12-02 16:37:21,245 INFO L87 Difference]: Start difference. First operand 111 states and 149 transitions. Second operand has 12 states, 12 states have (on average 3.5833333333333335) internal successors, (43), 12 states have internal predecessors, (43), 3 states have call successors, (20), 3 states have call predecessors, (20), 6 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2023-12-02 16:37:21,741 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 16:37:21,741 INFO L93 Difference]: Finished difference Result 187 states and 242 transitions. [2023-12-02 16:37:21,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-12-02 16:37:21,742 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 3.5833333333333335) internal successors, (43), 12 states have internal predecessors, (43), 3 states have call successors, (20), 3 states have call predecessors, (20), 6 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) Word has length 105 [2023-12-02 16:37:21,742 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 16:37:21,743 INFO L225 Difference]: With dead ends: 187 [2023-12-02 16:37:21,743 INFO L226 Difference]: Without dead ends: 0 [2023-12-02 16:37:21,744 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 636 GetRequests, 611 SyntacticMatches, 5 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 95 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=153, Invalid=309, Unknown=0, NotChecked=0, Total=462 [2023-12-02 16:37:21,744 INFO L413 NwaCegarLoop]: 61 mSDtfsCounter, 89 mSDsluCounter, 90 mSDsCounter, 0 mSdLazyCounter, 261 mSolverCounterSat, 78 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 104 SdHoareTripleChecker+Valid, 151 SdHoareTripleChecker+Invalid, 339 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 78 IncrementalHoareTripleChecker+Valid, 261 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-02 16:37:21,745 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [104 Valid, 151 Invalid, 339 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [78 Valid, 261 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-02 16:37:21,745 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-12-02 16:37:21,745 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-12-02 16:37:21,745 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) [2023-12-02 16:37:21,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-12-02 16:37:21,746 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 105 [2023-12-02 16:37:21,746 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 16:37:21,746 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-12-02 16:37:21,746 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 3.5833333333333335) internal successors, (43), 12 states have internal predecessors, (43), 3 states have call successors, (20), 3 states have call predecessors, (20), 6 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2023-12-02 16:37:21,746 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-12-02 16:37:21,746 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-12-02 16:37:21,748 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-02 16:37:21,751 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b76f39d-9932-409a-9e4c-97792f2ad675/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (12)] Forceful destruction successful, exit code 0 [2023-12-02 16:37:21,952 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b76f39d-9932-409a-9e4c-97792f2ad675/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2023-12-02 16:37:22,154 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b76f39d-9932-409a-9e4c-97792f2ad675/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2023-12-02 16:37:22,349 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b76f39d-9932-409a-9e4c-97792f2ad675/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b76f39d-9932-409a-9e4c-97792f2ad675/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b76f39d-9932-409a-9e4c-97792f2ad675/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 16:37:22,351 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-12-02 16:37:32,402 WARN L293 SmtUtils]: Spent 5.29s on a formula simplification. DAG size of input: 344 DAG size of output: 85 (called from [L 149] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.combineInter) [2023-12-02 16:37:35,179 INFO L899 garLoopResultBuilder]: For program point L89(line 89) no Hoare annotation was computed. [2023-12-02 16:37:35,179 INFO L895 garLoopResultBuilder]: At program point L85(line 85) the Hoare annotation is: (let ((.cse1 ((_ zero_extend 24) ~var_1_15~0))) (let ((.cse0 (bvsle .cse1 (_ bv1 32)))) (or (and (= (_ bv2 32) ~last_1_var_1_6~0) (= (_ bv4 8) ~var_1_11~0) (fp.eq ~var_1_18~0 ~var_1_18~0) .cse0 (bvsge .cse1 (_ bv1 32)) (= ~var_1_6~0 (_ bv2 32))) (let ((.cse2 ((_ zero_extend 24) ~var_1_16~0))) (and (= .cse2 .cse1) .cse0 (bvsge .cse2 (_ bv1 32)) (fp.eq ~var_1_17~0 ~var_1_18~0)))))) [2023-12-02 16:37:35,180 INFO L895 garLoopResultBuilder]: At program point L85-1(line 85) the Hoare annotation is: (let ((.cse1 ((_ zero_extend 24) ~var_1_15~0))) (let ((.cse0 (bvsle .cse1 (_ bv1 32)))) (or (and (= (_ bv2 32) ~last_1_var_1_6~0) (= (_ bv4 8) ~var_1_11~0) (fp.eq ~var_1_18~0 ~var_1_18~0) .cse0 (bvsge .cse1 (_ bv1 32)) (= ~var_1_6~0 (_ bv2 32))) (let ((.cse2 ((_ zero_extend 24) ~var_1_16~0))) (and (= .cse2 .cse1) .cse0 (bvsge .cse2 (_ bv1 32)) (fp.eq ~var_1_17~0 ~var_1_18~0)))))) [2023-12-02 16:37:35,180 INFO L899 garLoopResultBuilder]: For program point L52(lines 52 60) no Hoare annotation was computed. [2023-12-02 16:37:35,180 INFO L899 garLoopResultBuilder]: For program point L19(line 19) no Hoare annotation was computed. [2023-12-02 16:37:35,180 INFO L899 garLoopResultBuilder]: For program point L19-1(line 19) no Hoare annotation was computed. [2023-12-02 16:37:35,180 INFO L899 garLoopResultBuilder]: For program point L19-3(line 19) no Hoare annotation was computed. [2023-12-02 16:37:35,180 INFO L899 garLoopResultBuilder]: For program point L77(line 77) no Hoare annotation was computed. [2023-12-02 16:37:35,180 INFO L895 garLoopResultBuilder]: At program point L73(line 73) the Hoare annotation is: (let ((.cse9 ((_ zero_extend 24) ~var_1_15~0))) (let ((.cse6 (bvsle .cse9 (_ bv1 32)))) (or (let ((.cse1 ((_ sign_extend 24) ~var_1_11~0))) (let ((.cse7 ((_ zero_extend 24) ~var_1_16~0)) (.cse8 (bvmul (_ bv2 32) .cse1))) (let ((.cse0 (bvslt .cse8 .cse1)) (.cse3 (= .cse7 .cse9)) (.cse2 ((_ sign_extend 16) ~var_1_1~0)) (.cse4 (fp.eq ~var_1_17~0 ~var_1_18~0)) (.cse5 (= ((_ sign_extend 24) ((_ extract 7 0) (bvadd ((_ sign_extend 24) ~var_1_12~0) ((_ sign_extend 24) ~var_1_13~0) (_ bv4294967246 32) ((_ sign_extend 24) ~var_1_14~0)))) .cse1))) (and (or .cse0 (and (= ((_ sign_extend 16) ((_ extract 15 0) .cse1)) .cse2) .cse3 .cse4 .cse5)) .cse6 (bvsge .cse7 (_ bv1 32)) (or (not .cse0) (and .cse3 (= ((_ sign_extend 16) ((_ extract 15 0) .cse8)) .cse2) .cse4 .cse5)))))) (and (= (_ bv2 32) ~last_1_var_1_6~0) (= (_ bv4 8) ~var_1_11~0) (fp.eq ~var_1_18~0 ~var_1_18~0) .cse6 (bvsge .cse9 (_ bv1 32)) (= ~var_1_6~0 (_ bv2 32)))))) [2023-12-02 16:37:35,180 INFO L895 garLoopResultBuilder]: At program point L73-1(line 73) the Hoare annotation is: (let ((.cse9 ((_ zero_extend 24) ~var_1_15~0))) (let ((.cse6 (bvsle .cse9 (_ bv1 32)))) (or (let ((.cse1 ((_ sign_extend 24) ~var_1_11~0))) (let ((.cse7 ((_ zero_extend 24) ~var_1_16~0)) (.cse8 (bvmul (_ bv2 32) .cse1))) (let ((.cse0 (bvslt .cse8 .cse1)) (.cse3 (= .cse7 .cse9)) (.cse2 ((_ sign_extend 16) ~var_1_1~0)) (.cse4 (fp.eq ~var_1_17~0 ~var_1_18~0)) (.cse5 (= ((_ sign_extend 24) ((_ extract 7 0) (bvadd ((_ sign_extend 24) ~var_1_12~0) ((_ sign_extend 24) ~var_1_13~0) (_ bv4294967246 32) ((_ sign_extend 24) ~var_1_14~0)))) .cse1))) (and (or .cse0 (and (= ((_ sign_extend 16) ((_ extract 15 0) .cse1)) .cse2) .cse3 .cse4 .cse5)) .cse6 (bvsge .cse7 (_ bv1 32)) (or (not .cse0) (and .cse3 (= ((_ sign_extend 16) ((_ extract 15 0) .cse8)) .cse2) .cse4 .cse5)))))) (and (= (_ bv2 32) ~last_1_var_1_6~0) (= (_ bv4 8) ~var_1_11~0) (fp.eq ~var_1_18~0 ~var_1_18~0) .cse6 (bvsge .cse9 (_ bv1 32)) (= ~var_1_6~0 (_ bv2 32)))))) [2023-12-02 16:37:35,181 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 19) no Hoare annotation was computed. [2023-12-02 16:37:35,181 INFO L899 garLoopResultBuilder]: For program point L86(line 86) no Hoare annotation was computed. [2023-12-02 16:37:35,181 INFO L899 garLoopResultBuilder]: For program point L53(lines 53 57) no Hoare annotation was computed. [2023-12-02 16:37:35,181 INFO L895 garLoopResultBuilder]: At program point L82(line 82) the Hoare annotation is: (let ((.cse1 ((_ zero_extend 24) ~var_1_15~0))) (let ((.cse0 (bvsle .cse1 (_ bv1 32)))) (or (and (= (_ bv2 32) ~last_1_var_1_6~0) (= (_ bv4 8) ~var_1_11~0) (fp.eq ~var_1_18~0 ~var_1_18~0) .cse0 (bvsge .cse1 (_ bv1 32)) (= ~var_1_6~0 (_ bv2 32))) (let ((.cse2 ((_ zero_extend 24) ~var_1_16~0))) (and (= .cse2 .cse1) .cse0 (bvsge .cse2 (_ bv1 32)) (fp.eq ~var_1_17~0 ~var_1_18~0)))))) [2023-12-02 16:37:35,181 INFO L895 garLoopResultBuilder]: At program point L82-1(line 82) the Hoare annotation is: (let ((.cse1 ((_ zero_extend 24) ~var_1_15~0))) (let ((.cse0 (bvsle .cse1 (_ bv1 32)))) (or (and (= (_ bv2 32) ~last_1_var_1_6~0) (= (_ bv4 8) ~var_1_11~0) (fp.eq ~var_1_18~0 ~var_1_18~0) .cse0 (bvsge .cse1 (_ bv1 32)) (= ~var_1_6~0 (_ bv2 32))) (let ((.cse2 ((_ zero_extend 24) ~var_1_16~0))) (and (= .cse2 .cse1) .cse0 (bvsge .cse2 (_ bv1 32)) (fp.eq ~var_1_17~0 ~var_1_18~0)))))) [2023-12-02 16:37:35,181 INFO L899 garLoopResultBuilder]: For program point L45-1(lines 45 47) no Hoare annotation was computed. [2023-12-02 16:37:35,181 INFO L899 garLoopResultBuilder]: For program point L74(line 74) no Hoare annotation was computed. [2023-12-02 16:37:35,181 INFO L895 garLoopResultBuilder]: At program point L70(line 70) the Hoare annotation is: (let ((.cse9 ((_ zero_extend 24) ~var_1_15~0))) (let ((.cse6 (bvsle .cse9 (_ bv1 32)))) (or (let ((.cse1 ((_ sign_extend 24) ~var_1_11~0))) (let ((.cse7 ((_ zero_extend 24) ~var_1_16~0)) (.cse8 (bvmul (_ bv2 32) .cse1))) (let ((.cse0 (bvslt .cse8 .cse1)) (.cse3 (= .cse7 .cse9)) (.cse2 ((_ sign_extend 16) ~var_1_1~0)) (.cse4 (fp.eq ~var_1_17~0 ~var_1_18~0)) (.cse5 (= ((_ sign_extend 24) ((_ extract 7 0) (bvadd ((_ sign_extend 24) ~var_1_12~0) ((_ sign_extend 24) ~var_1_13~0) (_ bv4294967246 32) ((_ sign_extend 24) ~var_1_14~0)))) .cse1))) (and (or .cse0 (and (= ((_ sign_extend 16) ((_ extract 15 0) .cse1)) .cse2) .cse3 .cse4 .cse5)) .cse6 (bvsge .cse7 (_ bv1 32)) (or (not .cse0) (and .cse3 (= ((_ sign_extend 16) ((_ extract 15 0) .cse8)) .cse2) .cse4 .cse5)))))) (and (= (_ bv2 32) ~last_1_var_1_6~0) (= (_ bv4 8) ~var_1_11~0) (fp.eq ~var_1_18~0 ~var_1_18~0) .cse6 (bvsge .cse9 (_ bv1 32)) (= ~var_1_6~0 (_ bv2 32)))))) [2023-12-02 16:37:35,181 INFO L895 garLoopResultBuilder]: At program point L70-1(line 70) the Hoare annotation is: (let ((.cse9 ((_ zero_extend 24) ~var_1_15~0))) (let ((.cse6 (bvsle .cse9 (_ bv1 32)))) (or (let ((.cse1 ((_ sign_extend 24) ~var_1_11~0))) (let ((.cse7 ((_ zero_extend 24) ~var_1_16~0)) (.cse8 (bvmul (_ bv2 32) .cse1))) (let ((.cse0 (bvslt .cse8 .cse1)) (.cse3 (= .cse7 .cse9)) (.cse2 ((_ sign_extend 16) ~var_1_1~0)) (.cse4 (fp.eq ~var_1_17~0 ~var_1_18~0)) (.cse5 (= ((_ sign_extend 24) ((_ extract 7 0) (bvadd ((_ sign_extend 24) ~var_1_12~0) ((_ sign_extend 24) ~var_1_13~0) (_ bv4294967246 32) ((_ sign_extend 24) ~var_1_14~0)))) .cse1))) (and (or .cse0 (and (= ((_ sign_extend 16) ((_ extract 15 0) .cse1)) .cse2) .cse3 .cse4 .cse5)) .cse6 (bvsge .cse7 (_ bv1 32)) (or (not .cse0) (and .cse3 (= ((_ sign_extend 16) ((_ extract 15 0) .cse8)) .cse2) .cse4 .cse5)))))) (and (= (_ bv2 32) ~last_1_var_1_6~0) (= (_ bv4 8) ~var_1_11~0) (fp.eq ~var_1_18~0 ~var_1_18~0) .cse6 (bvsge .cse9 (_ bv1 32)) (= ~var_1_6~0 (_ bv2 32)))))) [2023-12-02 16:37:35,182 INFO L895 garLoopResultBuilder]: At program point L103-2(lines 103 109) the Hoare annotation is: (let ((.cse7 ((_ zero_extend 24) ~var_1_16~0)) (.cse11 ((_ zero_extend 24) ~var_1_15~0))) (let ((.cse3 (= .cse7 .cse11)) (.cse4 (fp.eq ~var_1_17~0 ~var_1_18~0)) (.cse6 (bvsle .cse11 (_ bv1 32))) (.cse9 ((_ sign_extend 24) ((_ extract 7 0) (bvadd ((_ sign_extend 24) ~var_1_12~0) ((_ sign_extend 24) ~var_1_13~0) (_ bv4294967246 32) ((_ sign_extend 24) ~var_1_14~0)))))) (or (let ((.cse1 ((_ sign_extend 24) ~var_1_11~0))) (let ((.cse8 (bvmul (_ bv2 32) .cse1))) (let ((.cse0 (bvslt .cse8 .cse1)) (.cse2 ((_ sign_extend 16) ~var_1_1~0)) (.cse5 (= .cse9 .cse1))) (and (or .cse0 (and (= ((_ sign_extend 16) ((_ extract 15 0) .cse1)) .cse2) .cse3 .cse4 .cse5)) .cse6 (bvsge .cse7 (_ bv1 32)) (or (not .cse0) (and .cse3 (= ((_ sign_extend 16) ((_ extract 15 0) .cse8)) .cse2) .cse4 .cse5)))))) (let ((.cse12 (bvneg ~var_1_8~0))) (let ((.cse10 (forall ((v_subst_6 (_ BitVec 32)) (v_subst_5 (_ BitVec 32))) (or (not (bvuge (bvadd v_subst_6 .cse12) v_subst_5)) (not (bvult .cse9 (bvlshr ~var_1_8~0 v_subst_5))))))) (and (= (_ bv2 32) ~last_1_var_1_6~0) (= (_ bv4 8) ~var_1_11~0) (or .cse3 .cse10) (fp.eq ~var_1_18~0 ~var_1_18~0) (or .cse10 .cse4) (not (bvult |ULTIMATE.start_step_~stepLocal_1~0#1| (bvlshr ~var_1_8~0 ~var_1_9~0))) (or (and .cse3 .cse4) (not (= .cse9 (_ bv2 32)))) .cse6 (bvsge .cse11 (_ bv1 32)) (= ~var_1_6~0 (_ bv2 32)) (forall ((v_subst_3 (_ BitVec 32)) (v_subst_2 (_ BitVec 32))) (or (not (bvuge (bvadd v_subst_3 .cse12) v_subst_2)) (not (bvult ((_ sign_extend 24) (_ bv4 8)) (bvlshr ~var_1_8~0 v_subst_2))))))))))) [2023-12-02 16:37:35,182 INFO L899 garLoopResultBuilder]: For program point L103-3(lines 103 109) no Hoare annotation was computed. [2023-12-02 16:37:35,182 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-12-02 16:37:35,182 INFO L895 garLoopResultBuilder]: At program point L91(line 91) the Hoare annotation is: (let ((.cse1 ((_ zero_extend 24) ~var_1_15~0)) (.cse0 ((_ zero_extend 24) ~var_1_16~0))) (and (bvsle .cse0 (_ bv1 32)) (bvsle .cse1 (_ bv1 32)) (bvsge .cse1 (_ bv1 32)) (bvsge .cse0 (_ bv1 32)))) [2023-12-02 16:37:35,182 INFO L899 garLoopResultBuilder]: For program point L91-1(lines 65 92) no Hoare annotation was computed. [2023-12-02 16:37:35,182 INFO L899 garLoopResultBuilder]: For program point L83(line 83) no Hoare annotation was computed. [2023-12-02 16:37:35,182 INFO L895 garLoopResultBuilder]: At program point L79(line 79) the Hoare annotation is: (let ((.cse1 ((_ zero_extend 24) ~var_1_15~0))) (let ((.cse0 (bvsle .cse1 (_ bv1 32)))) (or (and (= (_ bv2 32) ~last_1_var_1_6~0) (= (_ bv4 8) ~var_1_11~0) (fp.eq ~var_1_18~0 ~var_1_18~0) .cse0 (bvsge .cse1 (_ bv1 32)) (= ~var_1_6~0 (_ bv2 32))) (let ((.cse2 ((_ zero_extend 24) ~var_1_16~0))) (and (= .cse2 .cse1) .cse0 (bvsge .cse2 (_ bv1 32)) (fp.eq ~var_1_17~0 ~var_1_18~0)))))) [2023-12-02 16:37:35,183 INFO L895 garLoopResultBuilder]: At program point L79-1(line 79) the Hoare annotation is: (let ((.cse1 ((_ zero_extend 24) ~var_1_15~0))) (let ((.cse0 (bvsle .cse1 (_ bv1 32)))) (or (and (= (_ bv2 32) ~last_1_var_1_6~0) (= (_ bv4 8) ~var_1_11~0) (fp.eq ~var_1_18~0 ~var_1_18~0) .cse0 (bvsge .cse1 (_ bv1 32)) (= ~var_1_6~0 (_ bv2 32))) (let ((.cse2 ((_ zero_extend 24) ~var_1_16~0))) (and (= .cse2 .cse1) .cse0 (bvsge .cse2 (_ bv1 32)) (fp.eq ~var_1_17~0 ~var_1_18~0)))))) [2023-12-02 16:37:35,183 INFO L899 garLoopResultBuilder]: For program point L42(lines 42 44) no Hoare annotation was computed. [2023-12-02 16:37:35,183 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-12-02 16:37:35,183 INFO L899 garLoopResultBuilder]: For program point L42-2(lines 39 64) no Hoare annotation was computed. [2023-12-02 16:37:35,183 INFO L899 garLoopResultBuilder]: For program point L71(line 71) no Hoare annotation was computed. [2023-12-02 16:37:35,183 INFO L895 garLoopResultBuilder]: At program point L67(line 67) the Hoare annotation is: (let ((.cse9 ((_ zero_extend 24) ~var_1_15~0))) (let ((.cse6 (bvsle .cse9 (_ bv1 32)))) (or (let ((.cse1 ((_ sign_extend 24) ~var_1_11~0))) (let ((.cse7 ((_ zero_extend 24) ~var_1_16~0)) (.cse8 (bvmul (_ bv2 32) .cse1))) (let ((.cse0 (bvslt .cse8 .cse1)) (.cse3 (= .cse7 .cse9)) (.cse2 ((_ sign_extend 16) ~var_1_1~0)) (.cse4 (fp.eq ~var_1_17~0 ~var_1_18~0)) (.cse5 (= ((_ sign_extend 24) ((_ extract 7 0) (bvadd ((_ sign_extend 24) ~var_1_12~0) ((_ sign_extend 24) ~var_1_13~0) (_ bv4294967246 32) ((_ sign_extend 24) ~var_1_14~0)))) .cse1))) (and (or .cse0 (and (= ((_ sign_extend 16) ((_ extract 15 0) .cse1)) .cse2) .cse3 .cse4 .cse5)) .cse6 (bvsge .cse7 (_ bv1 32)) (or (not .cse0) (and .cse3 (= ((_ sign_extend 16) ((_ extract 15 0) .cse8)) .cse2) .cse4 .cse5)))))) (and (= (_ bv2 32) ~last_1_var_1_6~0) (= (_ bv4 8) ~var_1_11~0) (fp.eq ~var_1_18~0 ~var_1_18~0) .cse6 (bvsge .cse9 (_ bv1 32)) (= ~var_1_6~0 (_ bv2 32)))))) [2023-12-02 16:37:35,183 INFO L895 garLoopResultBuilder]: At program point L67-1(line 67) the Hoare annotation is: (let ((.cse9 ((_ zero_extend 24) ~var_1_15~0))) (let ((.cse6 (bvsle .cse9 (_ bv1 32)))) (or (let ((.cse1 ((_ sign_extend 24) ~var_1_11~0))) (let ((.cse7 ((_ zero_extend 24) ~var_1_16~0)) (.cse8 (bvmul (_ bv2 32) .cse1))) (let ((.cse0 (bvslt .cse8 .cse1)) (.cse3 (= .cse7 .cse9)) (.cse2 ((_ sign_extend 16) ~var_1_1~0)) (.cse4 (fp.eq ~var_1_17~0 ~var_1_18~0)) (.cse5 (= ((_ sign_extend 24) ((_ extract 7 0) (bvadd ((_ sign_extend 24) ~var_1_12~0) ((_ sign_extend 24) ~var_1_13~0) (_ bv4294967246 32) ((_ sign_extend 24) ~var_1_14~0)))) .cse1))) (and (or .cse0 (and (= ((_ sign_extend 16) ((_ extract 15 0) .cse1)) .cse2) .cse3 .cse4 .cse5)) .cse6 (bvsge .cse7 (_ bv1 32)) (or (not .cse0) (and .cse3 (= ((_ sign_extend 16) ((_ extract 15 0) .cse8)) .cse2) .cse4 .cse5)))))) (and (= (_ bv2 32) ~last_1_var_1_6~0) (= (_ bv4 8) ~var_1_11~0) (fp.eq ~var_1_18~0 ~var_1_18~0) .cse6 (bvsge .cse9 (_ bv1 32)) (= ~var_1_6~0 (_ bv2 32)))))) [2023-12-02 16:37:35,183 INFO L895 garLoopResultBuilder]: At program point L88(line 88) the Hoare annotation is: (let ((.cse0 ((_ zero_extend 24) ~var_1_15~0))) (and (fp.eq ~var_1_18~0 ~var_1_18~0) (bvsle .cse0 (_ bv1 32)) (bvsge .cse0 (_ bv1 32)))) [2023-12-02 16:37:35,183 INFO L895 garLoopResultBuilder]: At program point L88-1(line 88) the Hoare annotation is: (let ((.cse0 ((_ zero_extend 24) ~var_1_15~0))) (and (fp.eq ~var_1_18~0 ~var_1_18~0) (bvsle .cse0 (_ bv1 32)) (bvsge .cse0 (_ bv1 32)) (bvsge ((_ zero_extend 24) ~var_1_16~0) (_ bv1 32)))) [2023-12-02 16:37:35,184 INFO L899 garLoopResultBuilder]: For program point L51(lines 51 63) no Hoare annotation was computed. [2023-12-02 16:37:35,184 INFO L899 garLoopResultBuilder]: For program point L80(line 80) no Hoare annotation was computed. [2023-12-02 16:37:35,184 INFO L895 garLoopResultBuilder]: At program point L76(line 76) the Hoare annotation is: (let ((.cse9 ((_ zero_extend 24) ~var_1_15~0))) (let ((.cse6 (bvsle .cse9 (_ bv1 32)))) (or (let ((.cse1 ((_ sign_extend 24) ~var_1_11~0))) (let ((.cse7 ((_ zero_extend 24) ~var_1_16~0)) (.cse8 (bvmul (_ bv2 32) .cse1))) (let ((.cse0 (bvslt .cse8 .cse1)) (.cse3 (= .cse7 .cse9)) (.cse2 ((_ sign_extend 16) ~var_1_1~0)) (.cse4 (fp.eq ~var_1_17~0 ~var_1_18~0)) (.cse5 (= ((_ sign_extend 24) ((_ extract 7 0) (bvadd ((_ sign_extend 24) ~var_1_12~0) ((_ sign_extend 24) ~var_1_13~0) (_ bv4294967246 32) ((_ sign_extend 24) ~var_1_14~0)))) .cse1))) (and (or .cse0 (and (= ((_ sign_extend 16) ((_ extract 15 0) .cse1)) .cse2) .cse3 .cse4 .cse5)) .cse6 (bvsge .cse7 (_ bv1 32)) (or (not .cse0) (and .cse3 (= ((_ sign_extend 16) ((_ extract 15 0) .cse8)) .cse2) .cse4 .cse5)))))) (and (= (_ bv2 32) ~last_1_var_1_6~0) (= (_ bv4 8) ~var_1_11~0) (fp.eq ~var_1_18~0 ~var_1_18~0) .cse6 (bvsge .cse9 (_ bv1 32)) (= ~var_1_6~0 (_ bv2 32)))))) [2023-12-02 16:37:35,184 INFO L895 garLoopResultBuilder]: At program point L76-1(line 76) the Hoare annotation is: (let ((.cse9 ((_ zero_extend 24) ~var_1_15~0))) (let ((.cse6 (bvsle .cse9 (_ bv1 32)))) (or (let ((.cse1 ((_ sign_extend 24) ~var_1_11~0))) (let ((.cse7 ((_ zero_extend 24) ~var_1_16~0)) (.cse8 (bvmul (_ bv2 32) .cse1))) (let ((.cse0 (bvslt .cse8 .cse1)) (.cse3 (= .cse7 .cse9)) (.cse2 ((_ sign_extend 16) ~var_1_1~0)) (.cse4 (fp.eq ~var_1_17~0 ~var_1_18~0)) (.cse5 (= ((_ sign_extend 24) ((_ extract 7 0) (bvadd ((_ sign_extend 24) ~var_1_12~0) ((_ sign_extend 24) ~var_1_13~0) (_ bv4294967246 32) ((_ sign_extend 24) ~var_1_14~0)))) .cse1))) (and (or .cse0 (and (= ((_ sign_extend 16) ((_ extract 15 0) .cse1)) .cse2) .cse3 .cse4 .cse5)) .cse6 (bvsge .cse7 (_ bv1 32)) (or (not .cse0) (and .cse3 (= ((_ sign_extend 16) ((_ extract 15 0) .cse8)) .cse2) .cse4 .cse5)))))) (and (= (_ bv2 32) ~last_1_var_1_6~0) (= (_ bv4 8) ~var_1_11~0) (fp.eq ~var_1_18~0 ~var_1_18~0) .cse6 (bvsge .cse9 (_ bv1 32)) (= ~var_1_6~0 (_ bv2 32)))))) [2023-12-02 16:37:35,184 INFO L899 garLoopResultBuilder]: For program point L39(lines 39 64) no Hoare annotation was computed. [2023-12-02 16:37:35,184 INFO L899 garLoopResultBuilder]: For program point L68(line 68) no Hoare annotation was computed. [2023-12-02 16:37:35,184 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(line 20) the Hoare annotation is: true [2023-12-02 16:37:35,184 INFO L899 garLoopResultBuilder]: For program point L20(line 20) no Hoare annotation was computed. [2023-12-02 16:37:35,184 INFO L899 garLoopResultBuilder]: For program point L20-2(line 20) no Hoare annotation was computed. [2023-12-02 16:37:35,185 INFO L899 garLoopResultBuilder]: For program point assume_abort_if_notEXIT(line 20) no Hoare annotation was computed. [2023-12-02 16:37:35,188 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 16:37:35,190 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-12-02 16:37:35,200 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: Missing case for function ~fp.eq~64 [2023-12-02 16:37:35,202 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: Missing case for function ~fp.eq~64 [2023-12-02 16:37:35,205 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: QuantifierExpression (forall v_subst_6 : bv32, v_subst_5 : bv32 :: !~bvuge~32(~bvadd~32(v_subst_6, ~bvneg~32(~var_1_8~0)), v_subst_5) || !~bvult~32(~sign_extend~32~16(~bvadd~32(~sign_extend~32~16(~var_1_12~0), ~sign_extend~32~16(~var_1_13~0), 4294967246bv32, ~sign_extend~32~16(~var_1_14~0))[7:0]), ~bvlshr~32(~var_1_8~0, v_subst_5))) could not be translated [2023-12-02 16:37:35,205 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: Missing case for function ~fp.eq~64 [2023-12-02 16:37:35,205 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: QuantifierExpression (forall v_subst_6 : bv32, v_subst_5 : bv32 :: !~bvuge~32(~bvadd~32(v_subst_6, ~bvneg~32(~var_1_8~0)), v_subst_5) || !~bvult~32(~sign_extend~32~16(~bvadd~32(~sign_extend~32~16(~var_1_12~0), ~sign_extend~32~16(~var_1_13~0), 4294967246bv32, ~sign_extend~32~16(~var_1_14~0))[7:0]), ~bvlshr~32(~var_1_8~0, v_subst_5))) could not be translated [2023-12-02 16:37:35,205 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: Missing case for function ~fp.eq~64 [2023-12-02 16:37:35,206 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~stepLocal_1~0 [2023-12-02 16:37:35,206 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: Missing case for function ~fp.eq~64 [2023-12-02 16:37:35,206 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: QuantifierExpression (forall v_subst_3 : bv32, v_subst_2 : bv32 :: !~bvuge~32(~bvadd~32(v_subst_3, ~bvneg~32(~var_1_8~0)), v_subst_2) || !~bvult~32(~sign_extend~32~16(4bv8), ~bvlshr~32(~var_1_8~0, v_subst_2))) could not be translated [2023-12-02 16:37:35,207 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 04:37:35 BoogieIcfgContainer [2023-12-02 16:37:35,207 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-02 16:37:35,208 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-12-02 16:37:35,208 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-12-02 16:37:35,208 INFO L274 PluginConnector]: Witness Printer initialized [2023-12-02 16:37:35,209 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 04:35:30" (3/4) ... [2023-12-02 16:37:35,210 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-12-02 16:37:35,213 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure assume_abort_if_not [2023-12-02 16:37:35,218 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 16 nodes and edges [2023-12-02 16:37:35,218 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2023-12-02 16:37:35,218 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-12-02 16:37:35,219 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-12-02 16:37:35,297 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b76f39d-9932-409a-9e4c-97792f2ad675/bin/utaipan-verify-nQ1chXbOIh/witness.graphml [2023-12-02 16:37:35,298 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b76f39d-9932-409a-9e4c-97792f2ad675/bin/utaipan-verify-nQ1chXbOIh/witness.yml [2023-12-02 16:37:35,298 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-12-02 16:37:35,298 INFO L158 Benchmark]: Toolchain (without parser) took 125374.72ms. Allocated memory was 94.4MB in the beginning and 866.1MB in the end (delta: 771.8MB). Free memory was 70.1MB in the beginning and 765.9MB in the end (delta: -695.8MB). Peak memory consumption was 77.0MB. Max. memory is 16.1GB. [2023-12-02 16:37:35,298 INFO L158 Benchmark]: CDTParser took 0.21ms. Allocated memory is still 69.2MB. Free memory is still 46.1MB. There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 16:37:35,299 INFO L158 Benchmark]: CACSL2BoogieTranslator took 297.69ms. Allocated memory is still 94.4MB. Free memory was 70.1MB in the beginning and 57.2MB in the end (delta: 13.0MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-12-02 16:37:35,299 INFO L158 Benchmark]: Boogie Procedure Inliner took 44.75ms. Allocated memory is still 94.4MB. Free memory was 57.2MB in the beginning and 55.2MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-12-02 16:37:35,299 INFO L158 Benchmark]: Boogie Preprocessor took 35.38ms. Allocated memory is still 94.4MB. Free memory was 55.2MB in the beginning and 53.3MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-12-02 16:37:35,300 INFO L158 Benchmark]: RCFGBuilder took 429.33ms. Allocated memory is still 94.4MB. Free memory was 53.3MB in the beginning and 55.9MB in the end (delta: -2.6MB). Peak memory consumption was 5.8MB. Max. memory is 16.1GB. [2023-12-02 16:37:35,300 INFO L158 Benchmark]: TraceAbstraction took 124470.71ms. Allocated memory was 94.4MB in the beginning and 866.1MB in the end (delta: 771.8MB). Free memory was 55.3MB in the beginning and 772.2MB in the end (delta: -716.9MB). Peak memory consumption was 509.6MB. Max. memory is 16.1GB. [2023-12-02 16:37:35,300 INFO L158 Benchmark]: Witness Printer took 89.86ms. Allocated memory is still 866.1MB. Free memory was 772.2MB in the beginning and 765.9MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2023-12-02 16:37:35,302 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21ms. Allocated memory is still 69.2MB. Free memory is still 46.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 297.69ms. Allocated memory is still 94.4MB. Free memory was 70.1MB in the beginning and 57.2MB in the end (delta: 13.0MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 44.75ms. Allocated memory is still 94.4MB. Free memory was 57.2MB in the beginning and 55.2MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 35.38ms. Allocated memory is still 94.4MB. Free memory was 55.2MB in the beginning and 53.3MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 429.33ms. Allocated memory is still 94.4MB. Free memory was 53.3MB in the beginning and 55.9MB in the end (delta: -2.6MB). Peak memory consumption was 5.8MB. Max. memory is 16.1GB. * TraceAbstraction took 124470.71ms. Allocated memory was 94.4MB in the beginning and 866.1MB in the end (delta: 771.8MB). Free memory was 55.3MB in the beginning and 772.2MB in the end (delta: -716.9MB). Peak memory consumption was 509.6MB. Max. memory is 16.1GB. * Witness Printer took 89.86ms. Allocated memory is still 866.1MB. Free memory was 772.2MB in the beginning and 765.9MB in the end (delta: 6.3MB). 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: Missing case for function ~fp.eq~64 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Missing case for function ~fp.eq~64 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: QuantifierExpression (forall v_subst_6 : bv32, v_subst_5 : bv32 :: !~bvuge~32(~bvadd~32(v_subst_6, ~bvneg~32(~var_1_8~0)), v_subst_5) || !~bvult~32(~sign_extend~32~16(~bvadd~32(~sign_extend~32~16(~var_1_12~0), ~sign_extend~32~16(~var_1_13~0), 4294967246bv32, ~sign_extend~32~16(~var_1_14~0))[7:0]), ~bvlshr~32(~var_1_8~0, v_subst_5))) could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Missing case for function ~fp.eq~64 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: QuantifierExpression (forall v_subst_6 : bv32, v_subst_5 : bv32 :: !~bvuge~32(~bvadd~32(v_subst_6, ~bvneg~32(~var_1_8~0)), v_subst_5) || !~bvult~32(~sign_extend~32~16(~bvadd~32(~sign_extend~32~16(~var_1_12~0), ~sign_extend~32~16(~var_1_13~0), 4294967246bv32, ~sign_extend~32~16(~var_1_14~0))[7:0]), ~bvlshr~32(~var_1_8~0, v_subst_5))) could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Missing case for function ~fp.eq~64 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~stepLocal_1~0 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Missing case for function ~fp.eq~64 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: QuantifierExpression (forall v_subst_3 : bv32, v_subst_2 : bv32 :: !~bvuge~32(~bvadd~32(v_subst_3, ~bvneg~32(~var_1_8~0)), v_subst_2) || !~bvult~32(~sign_extend~32~16(4bv8), ~bvlshr~32(~var_1_8~0, v_subst_2))) 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: 19]: 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 2 procedures, 45 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 124.4s, OverallIterations: 8, TraceHistogramMax: 17, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 23.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 12.8s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 674 SdHoareTripleChecker+Valid, 9.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 659 mSDsluCounter, 1329 SdHoareTripleChecker+Invalid, 8.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 762 mSDsCounter, 375 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1591 IncrementalHoareTripleChecker+Invalid, 1966 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 375 mSolverCounterUnsat, 567 mSDtfsCounter, 1591 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2210 GetRequests, 1960 SyntacticMatches, 7 SemanticMatches, 243 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3577 ImplicationChecksByTransitivity, 37.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=111occurred in iteration=6, InterpolantAutomatonStates: 86, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 8 MinimizatonAttempts, 124 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 19 LocationsWithAnnotation, 140 PreInvPairs, 179 NumberOfFragments, 1355 HoareAnnotationTreeSize, 140 FomulaSimplifications, 25175 FormulaSimplificationTreeSizeReduction, 1.3s HoareSimplificationTime, 19 FomulaSimplificationsInter, 42470 FormulaSimplificationTreeSizeReductionInter, 11.5s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 1.4s SatisfiabilityAnalysisTime, 83.3s InterpolantComputationTime, 1247 NumberOfCodeBlocks, 1247 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 2164 ConstructedInterpolants, 31 QuantifiedInterpolants, 17849 SizeOfPredicates, 154 NumberOfNonLiveVariables, 2087 ConjunctsInSsa, 200 ConjunctsInUnsatCore, 21 InterpolantComputations, 7 PerfectInterpolantSequences, 11166/11424 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 103]: Loop Invariant Derived loop invariant: (((((((2 * var_1_11) < var_1_11) || ((((var_1_11 & 32767) == var_1_1) && (var_1_16 == var_1_15)) && ((((var_1_12 + var_1_13) % 4294967296) & 127) == var_1_11))) && (var_1_15 <= 1)) && (var_1_16 >= 1)) && (!(((2 * var_1_11) < var_1_11)) || (((var_1_16 == var_1_15) && (((2 * var_1_11) & 32767) == var_1_1)) && ((((var_1_12 + var_1_13) % 4294967296) & 127) == var_1_11)))) || ((((((2 == last_1_var_1_6) && (4 == var_1_11)) && ((var_1_16 == var_1_15) || !(((((var_1_12 + var_1_13) % 4294967296) & 127) == 2)))) && (var_1_15 <= 1)) && (var_1_15 >= 1)) && (var_1_6 == 2))) RESULT: Ultimate proved your program to be correct! [2023-12-02 16:37:35,376 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b76f39d-9932-409a-9e4c-97792f2ad675/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE