./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-52.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a0165632 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_e687dc4b-6265-4e18-a5e4-ba852ba5e717/bin/utaipan-verify-YMUCfTKeje/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e687dc4b-6265-4e18-a5e4-ba852ba5e717/bin/utaipan-verify-YMUCfTKeje/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e687dc4b-6265-4e18-a5e4-ba852ba5e717/bin/utaipan-verify-YMUCfTKeje/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e687dc4b-6265-4e18-a5e4-ba852ba5e717/bin/utaipan-verify-YMUCfTKeje/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-52.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e687dc4b-6265-4e18-a5e4-ba852ba5e717/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e687dc4b-6265-4e18-a5e4-ba852ba5e717/bin/utaipan-verify-YMUCfTKeje --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 546d75af0b2a6c8266c0458a9caa98abc3bc86a7b7fd730a84276b7e3e8a97e2 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-09 06:41:38,399 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 06:41:38,531 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e687dc4b-6265-4e18-a5e4-ba852ba5e717/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Reach-32bit-Taipan_Default.epf [2024-11-09 06:41:38,540 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 06:41:38,542 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 06:41:38,592 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 06:41:38,593 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 06:41:38,594 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 06:41:38,596 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 06:41:38,597 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 06:41:38,598 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-09 06:41:38,599 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-09 06:41:38,599 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-09 06:41:38,600 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-09 06:41:38,600 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-09 06:41:38,601 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-09 06:41:38,604 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-09 06:41:38,609 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-09 06:41:38,610 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-09 06:41:38,610 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-09 06:41:38,611 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-09 06:41:38,612 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-09 06:41:38,612 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 06:41:38,613 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 06:41:38,613 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 06:41:38,614 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 06:41:38,614 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 06:41:38,615 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 06:41:38,615 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 06:41:38,616 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 06:41:38,616 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 06:41:38,616 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 06:41:38,617 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 06:41:38,617 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 06:41:38,618 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 06:41:38,618 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 06:41:38,619 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 06:41:38,619 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 06:41:38,620 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 06:41:38,620 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 06:41:38,620 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 06:41:38,622 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 06:41:38,622 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-09 06:41:38,623 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 06:41:38,624 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 06:41:38,624 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-09 06:41:38,625 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 06:41:38,625 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_e687dc4b-6265-4e18-a5e4-ba852ba5e717/bin/utaipan-verify-YMUCfTKeje/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e687dc4b-6265-4e18-a5e4-ba852ba5e717/bin/utaipan-verify-YMUCfTKeje Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 546d75af0b2a6c8266c0458a9caa98abc3bc86a7b7fd730a84276b7e3e8a97e2 [2024-11-09 06:41:38,999 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 06:41:39,040 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 06:41:39,044 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 06:41:39,047 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 06:41:39,048 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 06:41:39,050 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e687dc4b-6265-4e18-a5e4-ba852ba5e717/bin/utaipan-verify-YMUCfTKeje/../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-52.i Unable to find full path for "g++" [2024-11-09 06:41:41,620 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 06:41:41,940 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 06:41:41,940 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e687dc4b-6265-4e18-a5e4-ba852ba5e717/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-52.i [2024-11-09 06:41:41,953 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e687dc4b-6265-4e18-a5e4-ba852ba5e717/bin/utaipan-verify-YMUCfTKeje/data/4bb7ff6a4/c9ce0d8f33b940498d6321ced5eee752/FLAG27cb196ed [2024-11-09 06:41:41,977 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e687dc4b-6265-4e18-a5e4-ba852ba5e717/bin/utaipan-verify-YMUCfTKeje/data/4bb7ff6a4/c9ce0d8f33b940498d6321ced5eee752 [2024-11-09 06:41:41,981 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 06:41:41,983 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 06:41:41,986 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 06:41:41,986 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 06:41:41,998 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 06:41:42,000 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 06:41:41" (1/1) ... [2024-11-09 06:41:42,005 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4f1550db and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:41:42, skipping insertion in model container [2024-11-09 06:41:42,005 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 06:41:41" (1/1) ... [2024-11-09 06:41:42,044 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 06:41:42,333 WARN L250 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_e687dc4b-6265-4e18-a5e4-ba852ba5e717/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-52.i[915,928] [2024-11-09 06:41:42,402 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 06:41:42,419 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 06:41:42,438 WARN L250 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_e687dc4b-6265-4e18-a5e4-ba852ba5e717/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-52.i[915,928] [2024-11-09 06:41:42,476 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 06:41:42,502 INFO L204 MainTranslator]: Completed translation [2024-11-09 06:41:42,503 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:41:42 WrapperNode [2024-11-09 06:41:42,503 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 06:41:42,504 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 06:41:42,505 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 06:41:42,505 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 06:41:42,516 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:41:42" (1/1) ... [2024-11-09 06:41:42,528 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:41:42" (1/1) ... [2024-11-09 06:41:42,596 INFO L138 Inliner]: procedures = 26, calls = 31, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 106 [2024-11-09 06:41:42,596 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 06:41:42,597 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 06:41:42,597 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 06:41:42,598 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 06:41:42,615 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:41:42" (1/1) ... [2024-11-09 06:41:42,615 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:41:42" (1/1) ... [2024-11-09 06:41:42,619 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:41:42" (1/1) ... [2024-11-09 06:41:42,619 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:41:42" (1/1) ... [2024-11-09 06:41:42,637 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:41:42" (1/1) ... [2024-11-09 06:41:42,648 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:41:42" (1/1) ... [2024-11-09 06:41:42,654 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:41:42" (1/1) ... [2024-11-09 06:41:42,657 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:41:42" (1/1) ... [2024-11-09 06:41:42,668 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 06:41:42,669 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 06:41:42,669 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 06:41:42,670 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 06:41:42,675 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:41:42" (1/1) ... [2024-11-09 06:41:42,696 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 06:41:42,720 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e687dc4b-6265-4e18-a5e4-ba852ba5e717/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 06:41:42,748 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e687dc4b-6265-4e18-a5e4-ba852ba5e717/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-09 06:41:42,753 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e687dc4b-6265-4e18-a5e4-ba852ba5e717/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-09 06:41:42,798 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 06:41:42,799 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-09 06:41:42,799 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-09 06:41:42,800 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-09 06:41:42,800 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 06:41:42,800 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 06:41:42,920 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 06:41:42,923 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 06:41:43,346 INFO L? ?]: Removed 10 outVars from TransFormulas that were not future-live. [2024-11-09 06:41:43,347 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 06:41:43,535 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 06:41:43,535 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-09 06:41:43,536 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 06:41:43 BoogieIcfgContainer [2024-11-09 06:41:43,536 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 06:41:43,539 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 06:41:43,540 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 06:41:43,544 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 06:41:43,544 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 06:41:41" (1/3) ... [2024-11-09 06:41:43,545 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@628b5d43 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 06:41:43, skipping insertion in model container [2024-11-09 06:41:43,546 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:41:42" (2/3) ... [2024-11-09 06:41:43,546 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@628b5d43 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 06:41:43, skipping insertion in model container [2024-11-09 06:41:43,547 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 06:41:43" (3/3) ... [2024-11-09 06:41:43,548 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_loopvsstraightlinecode_25-while_file-52.i [2024-11-09 06:41:43,572 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 06:41:43,573 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-09 06:41:43,686 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 06:41:43,699 INFO L333 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, 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;@2da80ee2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 06:41:43,700 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-09 06:41:43,706 INFO L276 IsEmpty]: Start isEmpty. Operand has 37 states, 16 states have (on average 1.1875) internal successors, (19), 17 states have internal predecessors, (19), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2024-11-09 06:41:43,721 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-11-09 06:41:43,721 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:41:43,723 INFO L215 NwaCegarLoop]: trace histogram [18, 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] [2024-11-09 06:41:43,724 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 06:41:43,733 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:41:43,733 INFO L85 PathProgramCache]: Analyzing trace with hash 147581229, now seen corresponding path program 1 times [2024-11-09 06:41:43,746 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:41:43,748 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [416283921] [2024-11-09 06:41:43,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:41:43,749 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:41:44,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 06:41:44,303 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 06:41:44,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 06:41:44,535 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2024-11-09 06:41:44,538 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-09 06:41:44,540 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-09 06:41:44,542 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-09 06:41:44,546 INFO L407 BasicCegarLoop]: Path program histogram: [1] [2024-11-09 06:41:44,608 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-09 06:41:44,611 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.11 06:41:44 BoogieIcfgContainer [2024-11-09 06:41:44,611 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-09 06:41:44,612 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-09 06:41:44,613 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-09 06:41:44,613 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-09 06:41:44,613 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 06:41:43" (3/4) ... [2024-11-09 06:41:44,620 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-09 06:41:44,623 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-09 06:41:44,625 INFO L158 Benchmark]: Toolchain (without parser) took 2641.18ms. Allocated memory is still 172.0MB. Free memory was 138.2MB in the beginning and 119.8MB in the end (delta: 18.4MB). Peak memory consumption was 20.4MB. Max. memory is 16.1GB. [2024-11-09 06:41:44,626 INFO L158 Benchmark]: CDTParser took 0.38ms. Allocated memory is still 130.0MB. Free memory is still 74.7MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 06:41:44,627 INFO L158 Benchmark]: CACSL2BoogieTranslator took 517.97ms. Allocated memory is still 172.0MB. Free memory was 138.2MB in the beginning and 123.5MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-11-09 06:41:44,629 INFO L158 Benchmark]: Boogie Procedure Inliner took 91.96ms. Allocated memory is still 172.0MB. Free memory was 123.5MB in the beginning and 120.7MB in the end (delta: 2.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-09 06:41:44,630 INFO L158 Benchmark]: Boogie Preprocessor took 70.75ms. Allocated memory is still 172.0MB. Free memory was 120.7MB in the beginning and 118.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-09 06:41:44,631 INFO L158 Benchmark]: RCFGBuilder took 867.14ms. Allocated memory is still 172.0MB. Free memory was 118.6MB in the beginning and 92.1MB in the end (delta: 26.5MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-11-09 06:41:44,633 INFO L158 Benchmark]: TraceAbstraction took 1072.29ms. Allocated memory is still 172.0MB. Free memory was 91.3MB in the beginning and 119.8MB in the end (delta: -28.5MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 06:41:44,634 INFO L158 Benchmark]: Witness Printer took 10.74ms. Allocated memory is still 172.0MB. Free memory is still 119.8MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 06:41:44,639 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.38ms. Allocated memory is still 130.0MB. Free memory is still 74.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 517.97ms. Allocated memory is still 172.0MB. Free memory was 138.2MB in the beginning and 123.5MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 91.96ms. Allocated memory is still 172.0MB. Free memory was 123.5MB in the beginning and 120.7MB in the end (delta: 2.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 70.75ms. Allocated memory is still 172.0MB. Free memory was 120.7MB in the beginning and 118.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 867.14ms. Allocated memory is still 172.0MB. Free memory was 118.6MB in the beginning and 92.1MB in the end (delta: 26.5MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * TraceAbstraction took 1072.29ms. Allocated memory is still 172.0MB. Free memory was 91.3MB in the beginning and 119.8MB in the end (delta: -28.5MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 10.74ms. Allocated memory is still 172.0MB. Free memory is still 119.8MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - 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 38. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] signed short int var_1_1 = -4; [L23] double var_1_2 = 255.6; [L24] unsigned char var_1_5 = 1; [L25] unsigned char var_1_6 = 0; [L26] unsigned char var_1_7 = 0; [L27] unsigned char var_1_8 = 0; [L28] unsigned char var_1_9 = 8; [L29] double var_1_10 = 255.2; [L30] unsigned char var_1_11 = 64; [L31] unsigned char var_1_12 = 100; [L32] unsigned char var_1_13 = 32; [L33] unsigned char var_1_14 = 64; [L34] unsigned char var_1_15 = 0; [L96] isInitial = 1 [L97] FCALL initially() [L98] COND TRUE 1 [L99] FCALL updateLastVariables() [L100] CALL updateVariables() [L60] var_1_2 = __VERIFIER_nondet_double() [L61] CALL assume_abort_if_not((var_1_2 >= -922337.2036854776000e+13F && var_1_2 <= -1.0e-20F) || (var_1_2 <= 9223372.036854776000e+12F && var_1_2 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_10=1276/5, var_1_11=64, var_1_12=100, var_1_13=32, var_1_14=64, var_1_15=0, var_1_1=-4, var_1_5=1, var_1_6=0, var_1_7=0, var_1_8=0, var_1_9=8] [L20] COND FALSE !(!cond) [L61] RET assume_abort_if_not((var_1_2 >= -922337.2036854776000e+13F && var_1_2 <= -1.0e-20F) || (var_1_2 <= 9223372.036854776000e+12F && var_1_2 >= 1.0e-20F )) VAL [isInitial=1, var_1_10=1276/5, var_1_11=64, var_1_12=100, var_1_13=32, var_1_14=64, var_1_15=0, var_1_1=-4, var_1_5=1, var_1_6=0, var_1_7=0, var_1_8=0, var_1_9=8] [L62] var_1_6 = __VERIFIER_nondet_uchar() [L63] CALL assume_abort_if_not(var_1_6 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=1276/5, var_1_11=64, var_1_12=100, var_1_13=32, var_1_14=64, var_1_15=0, var_1_1=-4, var_1_5=1, var_1_7=0, var_1_8=0, var_1_9=8] [L20] COND FALSE !(!cond) [L63] RET assume_abort_if_not(var_1_6 >= 0) VAL [isInitial=1, var_1_10=1276/5, var_1_11=64, var_1_12=100, var_1_13=32, var_1_14=64, var_1_15=0, var_1_1=-4, var_1_5=1, var_1_7=0, var_1_8=0, var_1_9=8] [L64] CALL assume_abort_if_not(var_1_6 <= 1) VAL [\old(cond)=1, isInitial=1, var_1_10=1276/5, var_1_11=64, var_1_12=100, var_1_13=32, var_1_14=64, var_1_15=0, var_1_1=-4, var_1_5=1, var_1_6=0, var_1_7=0, var_1_8=0, var_1_9=8] [L20] COND FALSE !(!cond) [L64] RET assume_abort_if_not(var_1_6 <= 1) VAL [isInitial=1, var_1_10=1276/5, var_1_11=64, var_1_12=100, var_1_13=32, var_1_14=64, var_1_15=0, var_1_1=-4, var_1_5=1, var_1_6=0, var_1_7=0, var_1_8=0, var_1_9=8] [L65] var_1_7 = __VERIFIER_nondet_uchar() [L66] CALL assume_abort_if_not(var_1_7 >= 1) VAL [\old(cond)=1, isInitial=1, var_1_10=1276/5, var_1_11=64, var_1_12=100, var_1_13=32, var_1_14=64, var_1_15=0, var_1_1=-4, var_1_5=1, var_1_6=0, var_1_7=1, var_1_8=0, var_1_9=8] [L20] COND FALSE !(!cond) [L66] RET assume_abort_if_not(var_1_7 >= 1) VAL [isInitial=1, var_1_10=1276/5, var_1_11=64, var_1_12=100, var_1_13=32, var_1_14=64, var_1_15=0, var_1_1=-4, var_1_5=1, var_1_6=0, var_1_7=1, var_1_8=0, var_1_9=8] [L67] CALL assume_abort_if_not(var_1_7 <= 1) VAL [\old(cond)=1, isInitial=1, var_1_10=1276/5, var_1_11=64, var_1_12=100, var_1_13=32, var_1_14=64, var_1_15=0, var_1_1=-4, var_1_5=1, var_1_6=0, var_1_7=1, var_1_8=0, var_1_9=8] [L20] COND FALSE !(!cond) [L67] RET assume_abort_if_not(var_1_7 <= 1) VAL [isInitial=1, var_1_10=1276/5, var_1_11=64, var_1_12=100, var_1_13=32, var_1_14=64, var_1_15=0, var_1_1=-4, var_1_5=1, var_1_6=0, var_1_7=1, var_1_8=0, var_1_9=8] [L68] var_1_8 = __VERIFIER_nondet_uchar() [L69] CALL assume_abort_if_not(var_1_8 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=1276/5, var_1_11=64, var_1_12=100, var_1_13=32, var_1_14=64, var_1_15=0, var_1_1=-4, var_1_5=1, var_1_6=0, var_1_7=1, var_1_9=8] [L20] COND FALSE !(!cond) [L69] RET assume_abort_if_not(var_1_8 >= 0) VAL [isInitial=1, var_1_10=1276/5, var_1_11=64, var_1_12=100, var_1_13=32, var_1_14=64, var_1_15=0, var_1_1=-4, var_1_5=1, var_1_6=0, var_1_7=1, var_1_9=8] [L70] CALL assume_abort_if_not(var_1_8 <= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=1276/5, var_1_11=64, var_1_12=100, var_1_13=32, var_1_14=64, var_1_15=0, var_1_1=-4, var_1_5=1, var_1_6=0, var_1_7=1, var_1_8=0, var_1_9=8] [L20] COND FALSE !(!cond) [L70] RET assume_abort_if_not(var_1_8 <= 0) VAL [isInitial=1, var_1_10=1276/5, var_1_11=64, var_1_12=100, var_1_13=32, var_1_14=64, var_1_15=0, var_1_1=-4, var_1_5=1, var_1_6=0, var_1_7=1, var_1_8=0, var_1_9=8] [L71] var_1_10 = __VERIFIER_nondet_double() [L72] CALL assume_abort_if_not((var_1_10 >= -922337.2036854776000e+13F && var_1_10 <= -1.0e-20F) || (var_1_10 <= 9223372.036854776000e+12F && var_1_10 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_11=64, var_1_12=100, var_1_13=32, var_1_14=64, var_1_15=0, var_1_1=-4, var_1_5=1, var_1_6=0, var_1_7=1, var_1_8=0, var_1_9=8] [L20] COND FALSE !(!cond) [L72] RET assume_abort_if_not((var_1_10 >= -922337.2036854776000e+13F && var_1_10 <= -1.0e-20F) || (var_1_10 <= 9223372.036854776000e+12F && var_1_10 >= 1.0e-20F )) VAL [isInitial=1, var_1_11=64, var_1_12=100, var_1_13=32, var_1_14=64, var_1_15=0, var_1_1=-4, var_1_5=1, var_1_6=0, var_1_7=1, var_1_8=0, var_1_9=8] [L73] var_1_11 = __VERIFIER_nondet_uchar() [L74] CALL assume_abort_if_not(var_1_11 >= 63) VAL [\old(cond)=1, isInitial=1, var_1_11=126, var_1_12=100, var_1_13=32, var_1_14=64, var_1_15=0, var_1_1=-4, var_1_5=1, var_1_6=0, var_1_7=1, var_1_8=0, var_1_9=8] [L20] COND FALSE !(!cond) [L74] RET assume_abort_if_not(var_1_11 >= 63) VAL [isInitial=1, var_1_11=126, var_1_12=100, var_1_13=32, var_1_14=64, var_1_15=0, var_1_1=-4, var_1_5=1, var_1_6=0, var_1_7=1, var_1_8=0, var_1_9=8] [L75] CALL assume_abort_if_not(var_1_11 <= 127) VAL [\old(cond)=1, isInitial=1, var_1_11=126, var_1_12=100, var_1_13=32, var_1_14=64, var_1_15=0, var_1_1=-4, var_1_5=1, var_1_6=0, var_1_7=1, var_1_8=0, var_1_9=8] [L20] COND FALSE !(!cond) [L75] RET assume_abort_if_not(var_1_11 <= 127) VAL [isInitial=1, var_1_11=126, var_1_12=100, var_1_13=32, var_1_14=64, var_1_15=0, var_1_1=-4, var_1_5=1, var_1_6=0, var_1_7=1, var_1_8=0, var_1_9=8] [L76] var_1_12 = __VERIFIER_nondet_uchar() [L77] CALL assume_abort_if_not(var_1_12 >= 64) VAL [\old(cond)=1, isInitial=1, var_1_11=126, var_1_12=127, var_1_13=32, var_1_14=64, var_1_15=0, var_1_1=-4, var_1_5=1, var_1_6=0, var_1_7=1, var_1_8=0, var_1_9=8] [L20] COND FALSE !(!cond) [L77] RET assume_abort_if_not(var_1_12 >= 64) VAL [isInitial=1, var_1_11=126, var_1_12=127, var_1_13=32, var_1_14=64, var_1_15=0, var_1_1=-4, var_1_5=1, var_1_6=0, var_1_7=1, var_1_8=0, var_1_9=8] [L78] CALL assume_abort_if_not(var_1_12 <= 127) VAL [\old(cond)=1, isInitial=1, var_1_11=126, var_1_12=127, var_1_13=32, var_1_14=64, var_1_15=0, var_1_1=-4, var_1_5=1, var_1_6=0, var_1_7=1, var_1_8=0, var_1_9=8] [L20] COND FALSE !(!cond) [L78] RET assume_abort_if_not(var_1_12 <= 127) VAL [isInitial=1, var_1_11=126, var_1_12=127, var_1_13=32, var_1_14=64, var_1_15=0, var_1_1=-4, var_1_5=1, var_1_6=0, var_1_7=1, var_1_8=0, var_1_9=8] [L79] var_1_13 = __VERIFIER_nondet_uchar() [L80] CALL assume_abort_if_not(var_1_13 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_11=126, var_1_12=127, var_1_14=64, var_1_15=0, var_1_1=-4, var_1_5=1, var_1_6=0, var_1_7=1, var_1_8=0, var_1_9=8] [L20] COND FALSE !(!cond) [L80] RET assume_abort_if_not(var_1_13 >= 0) VAL [isInitial=1, var_1_11=126, var_1_12=127, var_1_14=64, var_1_15=0, var_1_1=-4, var_1_5=1, var_1_6=0, var_1_7=1, var_1_8=0, var_1_9=8] [L81] CALL assume_abort_if_not(var_1_13 <= 127) VAL [\old(cond)=1, isInitial=1, var_1_11=126, var_1_12=127, var_1_13=127, var_1_14=64, var_1_15=0, var_1_1=-4, var_1_5=1, var_1_6=0, var_1_7=1, var_1_8=0, var_1_9=8] [L20] COND FALSE !(!cond) [L81] RET assume_abort_if_not(var_1_13 <= 127) VAL [isInitial=1, var_1_11=126, var_1_12=127, var_1_13=127, var_1_14=64, var_1_15=0, var_1_1=-4, var_1_5=1, var_1_6=0, var_1_7=1, var_1_8=0, var_1_9=8] [L82] var_1_14 = __VERIFIER_nondet_uchar() [L83] CALL assume_abort_if_not(var_1_14 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_11=126, var_1_12=127, var_1_13=127, var_1_15=0, var_1_1=-4, var_1_5=1, var_1_6=0, var_1_7=1, var_1_8=0, var_1_9=8] [L20] COND FALSE !(!cond) [L83] RET assume_abort_if_not(var_1_14 >= 0) VAL [isInitial=1, var_1_11=126, var_1_12=127, var_1_13=127, var_1_15=0, var_1_1=-4, var_1_5=1, var_1_6=0, var_1_7=1, var_1_8=0, var_1_9=8] [L84] CALL assume_abort_if_not(var_1_14 <= 127) VAL [\old(cond)=1, isInitial=1, var_1_11=126, var_1_12=127, var_1_13=127, var_1_14=126, var_1_15=0, var_1_1=-4, var_1_5=1, var_1_6=0, var_1_7=1, var_1_8=0, var_1_9=8] [L20] COND FALSE !(!cond) [L84] RET assume_abort_if_not(var_1_14 <= 127) VAL [isInitial=1, var_1_11=126, var_1_12=127, var_1_13=127, var_1_14=126, var_1_15=0, var_1_1=-4, var_1_5=1, var_1_6=0, var_1_7=1, var_1_8=0, var_1_9=8] [L85] var_1_15 = __VERIFIER_nondet_uchar() [L86] CALL assume_abort_if_not(var_1_15 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_11=126, var_1_12=127, var_1_13=127, var_1_14=126, var_1_1=-4, var_1_5=1, var_1_6=0, var_1_7=1, var_1_8=0, var_1_9=8] [L20] COND FALSE !(!cond) [L86] RET assume_abort_if_not(var_1_15 >= 0) VAL [isInitial=1, var_1_11=126, var_1_12=127, var_1_13=127, var_1_14=126, var_1_1=-4, var_1_5=1, var_1_6=0, var_1_7=1, var_1_8=0, var_1_9=8] [L87] CALL assume_abort_if_not(var_1_15 <= 127) VAL [\old(cond)=1, isInitial=1, var_1_11=126, var_1_12=127, var_1_13=127, var_1_14=126, var_1_15=0, var_1_1=-4, var_1_5=1, var_1_6=0, var_1_7=1, var_1_8=0, var_1_9=8] [L20] COND FALSE !(!cond) [L87] RET assume_abort_if_not(var_1_15 <= 127) VAL [isInitial=1, var_1_11=126, var_1_12=127, var_1_13=127, var_1_14=126, var_1_15=0, var_1_1=-4, var_1_5=1, var_1_6=0, var_1_7=1, var_1_8=0, var_1_9=8] [L100] RET updateVariables() [L101] CALL step() [L38] COND TRUE (- var_1_2) <= var_1_10 [L39] var_1_9 = ((((((var_1_11 + var_1_12) - var_1_13)) < ((var_1_14 + var_1_15))) ? (((var_1_11 + var_1_12) - var_1_13)) : ((var_1_14 + var_1_15)))) [L43] COND FALSE !(var_1_2 < 63.75) [L46] var_1_1 = (4 + var_1_9) [L48] signed long int stepLocal_0 = (var_1_9 / -256) * 32; [L49] COND TRUE var_1_9 > stepLocal_0 [L50] COND FALSE !(\read(var_1_6)) [L53] var_1_5 = var_1_7 [L101] RET step() [L102] CALL, EXPR property() [L92-L93] return (((var_1_2 < 63.75) ? (var_1_1 == ((signed short int) (10 - var_1_9))) : (var_1_1 == ((signed short int) (4 + var_1_9)))) && ((var_1_9 > ((var_1_9 / -256) * 32)) ? (var_1_6 ? (var_1_5 == ((unsigned char) (! (var_1_7 && (! var_1_8))))) : (var_1_5 == ((unsigned char) var_1_7))) : (var_1_5 == ((unsigned char) var_1_7)))) && (((- var_1_2) <= var_1_10) ? (var_1_9 == ((unsigned char) ((((((var_1_11 + var_1_12) - var_1_13)) < ((var_1_14 + var_1_15))) ? (((var_1_11 + var_1_12) - var_1_13)) : ((var_1_14 + var_1_15)))))) : (var_1_9 == ((unsigned char) var_1_12))) ; [L102] RET, EXPR property() [L102] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [isInitial=1, var_1_11=126, var_1_12=127, var_1_13=127, var_1_14=126, var_1_15=0, var_1_1=130, var_1_5=1, var_1_6=0, var_1_7=1, var_1_8=0, var_1_9=126] [L19] reach_error() VAL [isInitial=1, var_1_11=126, var_1_12=127, var_1_13=127, var_1_14=126, var_1_15=0, var_1_1=130, var_1_5=1, var_1_6=0, var_1_7=1, var_1_8=0, var_1_9=126] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 37 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.9s, OverallIterations: 1, TraceHistogramMax: 18, 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=37occurred 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, 0.4s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 68 NumberOfCodeBlocks, 68 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 [2024-11-09 06:41:44,687 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e687dc4b-6265-4e18-a5e4-ba852ba5e717/bin/utaipan-verify-YMUCfTKeje/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_e687dc4b-6265-4e18-a5e4-ba852ba5e717/bin/utaipan-verify-YMUCfTKeje/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e687dc4b-6265-4e18-a5e4-ba852ba5e717/bin/utaipan-verify-YMUCfTKeje/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e687dc4b-6265-4e18-a5e4-ba852ba5e717/bin/utaipan-verify-YMUCfTKeje/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e687dc4b-6265-4e18-a5e4-ba852ba5e717/bin/utaipan-verify-YMUCfTKeje/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-52.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e687dc4b-6265-4e18-a5e4-ba852ba5e717/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e687dc4b-6265-4e18-a5e4-ba852ba5e717/bin/utaipan-verify-YMUCfTKeje --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 546d75af0b2a6c8266c0458a9caa98abc3bc86a7b7fd730a84276b7e3e8a97e2 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-09 06:41:47,848 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 06:41:47,966 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e687dc4b-6265-4e18-a5e4-ba852ba5e717/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2024-11-09 06:41:47,976 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 06:41:47,978 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 06:41:48,046 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 06:41:48,049 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 06:41:48,050 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 06:41:48,052 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 06:41:48,053 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 06:41:48,054 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-09 06:41:48,055 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-09 06:41:48,055 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-09 06:41:48,056 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-09 06:41:48,059 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-09 06:41:48,060 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-09 06:41:48,061 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 06:41:48,061 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 06:41:48,062 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 06:41:48,062 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 06:41:48,063 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 06:41:48,067 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 06:41:48,068 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 06:41:48,070 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 06:41:48,071 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-09 06:41:48,071 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-09 06:41:48,071 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 06:41:48,072 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-09 06:41:48,072 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 06:41:48,073 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 06:41:48,073 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 06:41:48,074 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 06:41:48,074 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-09 06:41:48,074 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 06:41:48,075 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 06:41:48,075 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 06:41:48,075 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 06:41:48,076 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 06:41:48,078 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 06:41:48,079 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2024-11-09 06:41:48,080 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-09 06:41:48,080 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 06:41:48,080 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-09 06:41:48,081 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e687dc4b-6265-4e18-a5e4-ba852ba5e717/bin/utaipan-verify-YMUCfTKeje/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e687dc4b-6265-4e18-a5e4-ba852ba5e717/bin/utaipan-verify-YMUCfTKeje Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 546d75af0b2a6c8266c0458a9caa98abc3bc86a7b7fd730a84276b7e3e8a97e2 [2024-11-09 06:41:48,583 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 06:41:48,622 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 06:41:48,625 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 06:41:48,627 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 06:41:48,628 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 06:41:48,630 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e687dc4b-6265-4e18-a5e4-ba852ba5e717/bin/utaipan-verify-YMUCfTKeje/../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-52.i Unable to find full path for "g++" [2024-11-09 06:41:51,328 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 06:41:51,650 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 06:41:51,653 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e687dc4b-6265-4e18-a5e4-ba852ba5e717/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-52.i [2024-11-09 06:41:51,667 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e687dc4b-6265-4e18-a5e4-ba852ba5e717/bin/utaipan-verify-YMUCfTKeje/data/db75cae71/a3d661e653bc4116ba2f8e6bbd5f254d/FLAG6206b65a1 [2024-11-09 06:41:51,940 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e687dc4b-6265-4e18-a5e4-ba852ba5e717/bin/utaipan-verify-YMUCfTKeje/data/db75cae71/a3d661e653bc4116ba2f8e6bbd5f254d [2024-11-09 06:41:51,943 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 06:41:51,945 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 06:41:51,947 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 06:41:51,947 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 06:41:51,955 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 06:41:51,956 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 06:41:51" (1/1) ... [2024-11-09 06:41:51,957 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5148ca41 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:41:51, skipping insertion in model container [2024-11-09 06:41:51,958 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 06:41:51" (1/1) ... [2024-11-09 06:41:51,990 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 06:41:52,260 WARN L250 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_e687dc4b-6265-4e18-a5e4-ba852ba5e717/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-52.i[915,928] [2024-11-09 06:41:52,319 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 06:41:52,339 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 06:41:52,361 WARN L250 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_e687dc4b-6265-4e18-a5e4-ba852ba5e717/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-52.i[915,928] [2024-11-09 06:41:52,391 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 06:41:52,423 INFO L204 MainTranslator]: Completed translation [2024-11-09 06:41:52,424 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:41:52 WrapperNode [2024-11-09 06:41:52,424 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 06:41:52,426 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 06:41:52,426 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 06:41:52,426 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 06:41:52,436 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:41:52" (1/1) ... [2024-11-09 06:41:52,455 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:41:52" (1/1) ... [2024-11-09 06:41:52,536 INFO L138 Inliner]: procedures = 27, calls = 31, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 106 [2024-11-09 06:41:52,536 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 06:41:52,537 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 06:41:52,537 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 06:41:52,537 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 06:41:52,587 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:41:52" (1/1) ... [2024-11-09 06:41:52,588 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:41:52" (1/1) ... [2024-11-09 06:41:52,596 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:41:52" (1/1) ... [2024-11-09 06:41:52,600 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:41:52" (1/1) ... [2024-11-09 06:41:52,611 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:41:52" (1/1) ... [2024-11-09 06:41:52,619 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:41:52" (1/1) ... [2024-11-09 06:41:52,625 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:41:52" (1/1) ... [2024-11-09 06:41:52,631 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:41:52" (1/1) ... [2024-11-09 06:41:52,637 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 06:41:52,639 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 06:41:52,639 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 06:41:52,639 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 06:41:52,640 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:41:52" (1/1) ... [2024-11-09 06:41:52,658 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 06:41:52,678 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e687dc4b-6265-4e18-a5e4-ba852ba5e717/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 06:41:52,694 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e687dc4b-6265-4e18-a5e4-ba852ba5e717/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-09 06:41:52,700 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e687dc4b-6265-4e18-a5e4-ba852ba5e717/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-09 06:41:52,740 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 06:41:52,742 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-11-09 06:41:52,742 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-09 06:41:52,743 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-09 06:41:52,743 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 06:41:52,743 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 06:41:52,871 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 06:41:52,874 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 06:41:53,235 INFO L? ?]: Removed 10 outVars from TransFormulas that were not future-live. [2024-11-09 06:41:53,235 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 06:41:53,253 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 06:41:53,253 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-09 06:41:53,254 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 06:41:53 BoogieIcfgContainer [2024-11-09 06:41:53,254 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 06:41:53,257 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 06:41:53,257 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 06:41:53,264 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 06:41:53,264 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 06:41:51" (1/3) ... [2024-11-09 06:41:53,266 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@27c525ad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 06:41:53, skipping insertion in model container [2024-11-09 06:41:53,266 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:41:52" (2/3) ... [2024-11-09 06:41:53,268 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@27c525ad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 06:41:53, skipping insertion in model container [2024-11-09 06:41:53,269 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 06:41:53" (3/3) ... [2024-11-09 06:41:53,271 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_loopvsstraightlinecode_25-while_file-52.i [2024-11-09 06:41:53,298 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 06:41:53,298 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-09 06:41:53,427 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 06:41:53,436 INFO L333 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, 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;@29d82524, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 06:41:53,436 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-09 06:41:53,442 INFO L276 IsEmpty]: Start isEmpty. Operand has 52 states, 31 states have (on average 1.2903225806451613) internal successors, (40), 32 states have internal predecessors, (40), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2024-11-09 06:41:53,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2024-11-09 06:41:53,460 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:41:53,461 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 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, 1, 1, 1, 1, 1] [2024-11-09 06:41:53,462 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 06:41:53,470 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:41:53,470 INFO L85 PathProgramCache]: Analyzing trace with hash -984815562, now seen corresponding path program 1 times [2024-11-09 06:41:53,490 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 06:41:53,491 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [555712986] [2024-11-09 06:41:53,491 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:41:53,492 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 [2024-11-09 06:41:53,493 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e687dc4b-6265-4e18-a5e4-ba852ba5e717/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 06:41:53,497 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e687dc4b-6265-4e18-a5e4-ba852ba5e717/bin/utaipan-verify-YMUCfTKeje/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) [2024-11-09 06:41:53,507 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e687dc4b-6265-4e18-a5e4-ba852ba5e717/bin/utaipan-verify-YMUCfTKeje/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 [2024-11-09 06:41:53,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:41:53,905 INFO L255 TraceCheckSpWp]: Trace formula consists of 180 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-09 06:41:53,918 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:41:53,984 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 242 proven. 0 refuted. 0 times theorem prover too weak. 370 trivial. 0 not checked. [2024-11-09 06:41:53,984 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 06:41:53,985 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 06:41:53,986 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [555712986] [2024-11-09 06:41:53,987 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [555712986] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:41:53,987 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:41:53,987 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 06:41:53,990 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1050993558] [2024-11-09 06:41:53,991 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:41:53,998 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-09 06:41:53,999 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 06:41:54,033 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-09 06:41:54,035 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-09 06:41:54,038 INFO L87 Difference]: Start difference. First operand has 52 states, 31 states have (on average 1.2903225806451613) internal successors, (40), 32 states have internal predecessors, (40), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) Second operand has 2 states, 2 states have (on average 15.0) internal successors, (30), 2 states have internal predecessors, (30), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-09 06:41:54,085 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:41:54,086 INFO L93 Difference]: Finished difference Result 97 states and 164 transitions. [2024-11-09 06:41:54,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-09 06:41:54,089 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 15.0) internal successors, (30), 2 states have internal predecessors, (30), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 113 [2024-11-09 06:41:54,090 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:41:54,100 INFO L225 Difference]: With dead ends: 97 [2024-11-09 06:41:54,100 INFO L226 Difference]: Without dead ends: 48 [2024-11-09 06:41:54,105 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 112 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-09 06:41:54,110 INFO L432 NwaCegarLoop]: 69 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 69 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 06:41:54,112 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 06:41:54,141 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2024-11-09 06:41:54,190 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 48. [2024-11-09 06:41:54,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48 states, 28 states have (on average 1.1785714285714286) internal successors, (33), 28 states have internal predecessors, (33), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2024-11-09 06:41:54,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 69 transitions. [2024-11-09 06:41:54,200 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 69 transitions. Word has length 113 [2024-11-09 06:41:54,200 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:41:54,201 INFO L471 AbstractCegarLoop]: Abstraction has 48 states and 69 transitions. [2024-11-09 06:41:54,201 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 15.0) internal successors, (30), 2 states have internal predecessors, (30), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-09 06:41:54,202 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 69 transitions. [2024-11-09 06:41:54,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2024-11-09 06:41:54,206 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:41:54,207 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 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, 1, 1, 1, 1, 1] [2024-11-09 06:41:54,213 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e687dc4b-6265-4e18-a5e4-ba852ba5e717/bin/utaipan-verify-YMUCfTKeje/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)] Ended with exit code 0 [2024-11-09 06:41:54,408 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e687dc4b-6265-4e18-a5e4-ba852ba5e717/bin/utaipan-verify-YMUCfTKeje/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 [2024-11-09 06:41:54,423 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 06:41:54,424 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:41:54,425 INFO L85 PathProgramCache]: Analyzing trace with hash -27096586, now seen corresponding path program 1 times [2024-11-09 06:41:54,426 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 06:41:54,427 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [952308340] [2024-11-09 06:41:54,427 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:41:54,428 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 [2024-11-09 06:41:54,428 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e687dc4b-6265-4e18-a5e4-ba852ba5e717/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 06:41:54,430 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e687dc4b-6265-4e18-a5e4-ba852ba5e717/bin/utaipan-verify-YMUCfTKeje/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) [2024-11-09 06:41:54,432 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e687dc4b-6265-4e18-a5e4-ba852ba5e717/bin/utaipan-verify-YMUCfTKeje/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 [2024-11-09 06:41:54,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:41:54,720 INFO L255 TraceCheckSpWp]: Trace formula consists of 180 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-09 06:41:54,729 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:41:55,494 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 326 proven. 36 refuted. 0 times theorem prover too weak. 250 trivial. 0 not checked. [2024-11-09 06:41:55,496 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 06:41:56,083 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 30 proven. 21 refuted. 0 times theorem prover too weak. 561 trivial. 0 not checked. [2024-11-09 06:41:56,085 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 06:41:56,085 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [952308340] [2024-11-09 06:41:56,086 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [952308340] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 06:41:56,086 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [750766356] [2024-11-09 06:41:56,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:41:56,087 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-09 06:41:56,088 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e687dc4b-6265-4e18-a5e4-ba852ba5e717/bin/utaipan-verify-YMUCfTKeje/cvc4 [2024-11-09 06:41:56,092 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e687dc4b-6265-4e18-a5e4-ba852ba5e717/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-09 06:41:56,094 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e687dc4b-6265-4e18-a5e4-ba852ba5e717/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2024-11-09 06:41:56,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:41:56,909 INFO L255 TraceCheckSpWp]: Trace formula consists of 180 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-09 06:41:56,917 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:41:57,271 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 317 proven. 21 refuted. 0 times theorem prover too weak. 274 trivial. 0 not checked. [2024-11-09 06:41:57,271 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 06:41:57,649 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 30 proven. 21 refuted. 0 times theorem prover too weak. 561 trivial. 0 not checked. [2024-11-09 06:41:57,649 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [750766356] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 06:41:57,650 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1083267948] [2024-11-09 06:41:57,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:41:57,650 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:41:57,650 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e687dc4b-6265-4e18-a5e4-ba852ba5e717/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 06:41:57,654 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e687dc4b-6265-4e18-a5e4-ba852ba5e717/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 06:41:57,657 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e687dc4b-6265-4e18-a5e4-ba852ba5e717/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-09 06:41:57,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:41:57,833 INFO L255 TraceCheckSpWp]: Trace formula consists of 180 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-09 06:41:57,838 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:41:58,180 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 326 proven. 36 refuted. 0 times theorem prover too weak. 250 trivial. 0 not checked. [2024-11-09 06:41:58,180 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 06:41:58,547 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 30 proven. 21 refuted. 0 times theorem prover too weak. 561 trivial. 0 not checked. [2024-11-09 06:41:58,548 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1083267948] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 06:41:58,548 INFO L185 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2024-11-09 06:41:58,549 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 7, 7, 7, 10, 7] total 17 [2024-11-09 06:41:58,550 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1507686270] [2024-11-09 06:41:58,552 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2024-11-09 06:41:58,555 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-11-09 06:41:58,558 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 06:41:58,560 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-11-09 06:41:58,560 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=207, Unknown=0, NotChecked=0, Total=272 [2024-11-09 06:41:58,563 INFO L87 Difference]: Start difference. First operand 48 states and 69 transitions. Second operand has 17 states, 17 states have (on average 3.3529411764705883) internal successors, (57), 17 states have internal predecessors, (57), 4 states have call successors, (31), 3 states have call predecessors, (31), 6 states have return successors, (33), 4 states have call predecessors, (33), 4 states have call successors, (33) [2024-11-09 06:42:01,141 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:42:01,142 INFO L93 Difference]: Finished difference Result 203 states and 278 transitions. [2024-11-09 06:42:01,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2024-11-09 06:42:01,144 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 3.3529411764705883) internal successors, (57), 17 states have internal predecessors, (57), 4 states have call successors, (31), 3 states have call predecessors, (31), 6 states have return successors, (33), 4 states have call predecessors, (33), 4 states have call successors, (33) Word has length 113 [2024-11-09 06:42:01,145 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:42:01,151 INFO L225 Difference]: With dead ends: 203 [2024-11-09 06:42:01,151 INFO L226 Difference]: Without dead ends: 158 [2024-11-09 06:42:01,153 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 698 GetRequests, 661 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 338 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=365, Invalid=1117, Unknown=0, NotChecked=0, Total=1482 [2024-11-09 06:42:01,158 INFO L432 NwaCegarLoop]: 80 mSDtfsCounter, 220 mSDsluCounter, 241 mSDsCounter, 0 mSdLazyCounter, 528 mSolverCounterSat, 233 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 232 SdHoareTripleChecker+Valid, 321 SdHoareTripleChecker+Invalid, 761 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 233 IncrementalHoareTripleChecker+Valid, 528 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-11-09 06:42:01,159 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [232 Valid, 321 Invalid, 761 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [233 Valid, 528 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-11-09 06:42:01,163 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 158 states. [2024-11-09 06:42:01,206 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 158 to 59. [2024-11-09 06:42:01,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59 states, 37 states have (on average 1.162162162162162) internal successors, (43), 37 states have internal predecessors, (43), 18 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2024-11-09 06:42:01,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 79 transitions. [2024-11-09 06:42:01,210 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 79 transitions. Word has length 113 [2024-11-09 06:42:01,211 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:42:01,211 INFO L471 AbstractCegarLoop]: Abstraction has 59 states and 79 transitions. [2024-11-09 06:42:01,212 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 3.3529411764705883) internal successors, (57), 17 states have internal predecessors, (57), 4 states have call successors, (31), 3 states have call predecessors, (31), 6 states have return successors, (33), 4 states have call predecessors, (33), 4 states have call successors, (33) [2024-11-09 06:42:01,212 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 79 transitions. [2024-11-09 06:42:01,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2024-11-09 06:42:01,215 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:42:01,216 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 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, 1, 1, 1, 1, 1] [2024-11-09 06:42:01,226 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e687dc4b-6265-4e18-a5e4-ba852ba5e717/bin/utaipan-verify-YMUCfTKeje/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)] Forceful destruction successful, exit code 0 [2024-11-09 06:42:01,438 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e687dc4b-6265-4e18-a5e4-ba852ba5e717/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-09 06:42:01,622 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e687dc4b-6265-4e18-a5e4-ba852ba5e717/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (4)] Ended with exit code 0 [2024-11-09 06:42:01,817 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e687dc4b-6265-4e18-a5e4-ba852ba5e717/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e687dc4b-6265-4e18-a5e4-ba852ba5e717/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e687dc4b-6265-4e18-a5e4-ba852ba5e717/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt [2024-11-09 06:42:01,817 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 06:42:01,818 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:42:01,818 INFO L85 PathProgramCache]: Analyzing trace with hash 782250040, now seen corresponding path program 1 times [2024-11-09 06:42:01,819 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 06:42:01,819 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1852288894] [2024-11-09 06:42:01,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:42:01,820 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 [2024-11-09 06:42:01,820 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e687dc4b-6265-4e18-a5e4-ba852ba5e717/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 06:42:01,824 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e687dc4b-6265-4e18-a5e4-ba852ba5e717/bin/utaipan-verify-YMUCfTKeje/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) [2024-11-09 06:42:01,828 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e687dc4b-6265-4e18-a5e4-ba852ba5e717/bin/utaipan-verify-YMUCfTKeje/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 [2024-11-09 06:42:02,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:42:02,027 INFO L255 TraceCheckSpWp]: Trace formula consists of 180 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-09 06:42:02,035 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:42:16,319 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-09 06:42:16,320 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 06:42:16,320 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 06:42:16,321 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1852288894] [2024-11-09 06:42:16,321 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1852288894] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:42:16,321 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:42:16,321 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-09 06:42:16,322 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [683162197] [2024-11-09 06:42:16,322 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:42:16,323 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-09 06:42:16,323 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 06:42:16,324 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-09 06:42:16,324 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2024-11-09 06:42:16,324 INFO L87 Difference]: Start difference. First operand 59 states and 79 transitions. Second operand has 8 states, 8 states have (on average 3.25) internal successors, (26), 8 states have internal predecessors, (26), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-09 06:42:17,316 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:42:17,316 INFO L93 Difference]: Finished difference Result 87 states and 110 transitions. [2024-11-09 06:42:17,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-09 06:42:17,319 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 3.25) internal successors, (26), 8 states have internal predecessors, (26), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 113 [2024-11-09 06:42:17,320 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:42:17,322 INFO L225 Difference]: With dead ends: 87 [2024-11-09 06:42:17,322 INFO L226 Difference]: Without dead ends: 85 [2024-11-09 06:42:17,322 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 114 GetRequests, 106 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-11-09 06:42:17,325 INFO L432 NwaCegarLoop]: 71 mSDtfsCounter, 31 mSDsluCounter, 237 mSDsCounter, 0 mSdLazyCounter, 109 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 308 SdHoareTripleChecker+Invalid, 109 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 109 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-09 06:42:17,326 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 308 Invalid, 109 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 109 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-09 06:42:17,327 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2024-11-09 06:42:17,340 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 64. [2024-11-09 06:42:17,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64 states, 42 states have (on average 1.1666666666666667) internal successors, (49), 42 states have internal predecessors, (49), 18 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2024-11-09 06:42:17,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 85 transitions. [2024-11-09 06:42:17,343 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 85 transitions. Word has length 113 [2024-11-09 06:42:17,344 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:42:17,344 INFO L471 AbstractCegarLoop]: Abstraction has 64 states and 85 transitions. [2024-11-09 06:42:17,344 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 3.25) internal successors, (26), 8 states have internal predecessors, (26), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-09 06:42:17,345 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 85 transitions. [2024-11-09 06:42:17,347 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2024-11-09 06:42:17,347 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:42:17,347 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 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, 1, 1, 1, 1, 1] [2024-11-09 06:42:17,353 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e687dc4b-6265-4e18-a5e4-ba852ba5e717/bin/utaipan-verify-YMUCfTKeje/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)] Forceful destruction successful, exit code 0 [2024-11-09 06:42:17,548 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e687dc4b-6265-4e18-a5e4-ba852ba5e717/bin/utaipan-verify-YMUCfTKeje/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 [2024-11-09 06:42:17,549 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 06:42:17,549 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:42:17,549 INFO L85 PathProgramCache]: Analyzing trace with hash -1737709894, now seen corresponding path program 1 times [2024-11-09 06:42:17,550 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 06:42:17,550 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1215707677] [2024-11-09 06:42:17,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:42:17,551 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 [2024-11-09 06:42:17,551 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e687dc4b-6265-4e18-a5e4-ba852ba5e717/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 06:42:17,554 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e687dc4b-6265-4e18-a5e4-ba852ba5e717/bin/utaipan-verify-YMUCfTKeje/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) [2024-11-09 06:42:17,557 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e687dc4b-6265-4e18-a5e4-ba852ba5e717/bin/utaipan-verify-YMUCfTKeje/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)] Waiting until timeout for monitored process [2024-11-09 06:42:17,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:42:17,703 INFO L255 TraceCheckSpWp]: Trace formula consists of 180 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-09 06:42:17,708 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:42:29,349 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-09 06:42:29,349 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 06:42:29,349 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 06:42:29,350 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1215707677] [2024-11-09 06:42:29,350 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1215707677] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:42:29,350 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:42:29,350 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-09 06:42:29,350 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1261898301] [2024-11-09 06:42:29,350 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:42:29,351 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-09 06:42:29,351 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 06:42:29,352 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-09 06:42:29,352 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2024-11-09 06:42:29,353 INFO L87 Difference]: Start difference. First operand 64 states and 85 transitions. Second operand has 8 states, 8 states have (on average 3.25) internal successors, (26), 8 states have internal predecessors, (26), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-09 06:42:30,053 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:42:30,054 INFO L93 Difference]: Finished difference Result 90 states and 113 transitions. [2024-11-09 06:42:30,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-09 06:42:30,056 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 3.25) internal successors, (26), 8 states have internal predecessors, (26), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 113 [2024-11-09 06:42:30,057 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:42:30,058 INFO L225 Difference]: With dead ends: 90 [2024-11-09 06:42:30,058 INFO L226 Difference]: Without dead ends: 88 [2024-11-09 06:42:30,059 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 114 GetRequests, 106 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-11-09 06:42:30,060 INFO L432 NwaCegarLoop]: 80 mSDtfsCounter, 33 mSDsluCounter, 213 mSDsCounter, 0 mSdLazyCounter, 90 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 293 SdHoareTripleChecker+Invalid, 90 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 90 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-09 06:42:30,061 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 293 Invalid, 90 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 90 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-09 06:42:30,062 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states. [2024-11-09 06:42:30,073 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 62. [2024-11-09 06:42:30,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62 states, 40 states have (on average 1.15) internal successors, (46), 40 states have internal predecessors, (46), 18 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2024-11-09 06:42:30,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 82 transitions. [2024-11-09 06:42:30,076 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 82 transitions. Word has length 113 [2024-11-09 06:42:30,077 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:42:30,077 INFO L471 AbstractCegarLoop]: Abstraction has 62 states and 82 transitions. [2024-11-09 06:42:30,077 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 3.25) internal successors, (26), 8 states have internal predecessors, (26), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-09 06:42:30,078 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 82 transitions. [2024-11-09 06:42:30,080 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2024-11-09 06:42:30,080 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:42:30,080 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 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, 1, 1, 1, 1, 1, 1] [2024-11-09 06:42:30,086 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e687dc4b-6265-4e18-a5e4-ba852ba5e717/bin/utaipan-verify-YMUCfTKeje/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)] Ended with exit code 0 [2024-11-09 06:42:30,281 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e687dc4b-6265-4e18-a5e4-ba852ba5e717/bin/utaipan-verify-YMUCfTKeje/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 [2024-11-09 06:42:30,281 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 06:42:30,282 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:42:30,282 INFO L85 PathProgramCache]: Analyzing trace with hash -1073707430, now seen corresponding path program 1 times [2024-11-09 06:42:30,283 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 06:42:30,283 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1876390336] [2024-11-09 06:42:30,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:42:30,283 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 [2024-11-09 06:42:30,283 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e687dc4b-6265-4e18-a5e4-ba852ba5e717/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 06:42:30,285 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e687dc4b-6265-4e18-a5e4-ba852ba5e717/bin/utaipan-verify-YMUCfTKeje/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) [2024-11-09 06:42:30,286 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e687dc4b-6265-4e18-a5e4-ba852ba5e717/bin/utaipan-verify-YMUCfTKeje/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 [2024-11-09 06:42:30,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:42:30,445 INFO L255 TraceCheckSpWp]: Trace formula consists of 181 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-11-09 06:42:30,456 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:42:41,496 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 326 proven. 36 refuted. 0 times theorem prover too weak. 250 trivial. 0 not checked. [2024-11-09 06:42:41,496 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 06:43:20,987 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-09 06:43:20,987 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 06:43:20,987 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1876390336] [2024-11-09 06:43:20,988 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1876390336] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-09 06:43:20,988 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 06:43:20,988 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [13] total 18 [2024-11-09 06:43:20,988 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [145805709] [2024-11-09 06:43:20,988 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:43:20,989 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-09 06:43:20,993 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 06:43:20,995 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-09 06:43:20,996 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=248, Unknown=0, NotChecked=0, Total=306 [2024-11-09 06:43:20,996 INFO L87 Difference]: Start difference. First operand 62 states and 82 transitions. Second operand has 7 states, 7 states have (on average 3.857142857142857) internal successors, (27), 7 states have internal predecessors, (27), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-09 06:43:22,647 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2024-11-09 06:43:32,480 WARN L286 SmtUtils]: Spent 7.47s on a formula simplification that was a NOOP. DAG size: 152 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 06:43:39,631 WARN L286 SmtUtils]: Spent 6.55s on a formula simplification that was a NOOP. DAG size: 152 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 06:43:39,951 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:43:39,951 INFO L93 Difference]: Finished difference Result 95 states and 118 transitions. [2024-11-09 06:43:39,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-09 06:43:39,956 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.857142857142857) internal successors, (27), 7 states have internal predecessors, (27), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 114 [2024-11-09 06:43:39,956 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:43:39,957 INFO L225 Difference]: With dead ends: 95 [2024-11-09 06:43:39,958 INFO L226 Difference]: Without dead ends: 93 [2024-11-09 06:43:39,958 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 228 GetRequests, 210 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 75 ImplicationChecksByTransitivity, 22.7s TimeCoverageRelationStatistics Valid=70, Invalid=310, Unknown=0, NotChecked=0, Total=380 [2024-11-09 06:43:39,959 INFO L432 NwaCegarLoop]: 71 mSDtfsCounter, 31 mSDsluCounter, 204 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 275 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2024-11-09 06:43:39,960 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 275 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 4.2s Time] [2024-11-09 06:43:39,961 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2024-11-09 06:43:39,975 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 65. [2024-11-09 06:43:39,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65 states, 43 states have (on average 1.1627906976744187) internal successors, (50), 43 states have internal predecessors, (50), 18 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2024-11-09 06:43:39,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 86 transitions. [2024-11-09 06:43:39,977 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 86 transitions. Word has length 114 [2024-11-09 06:43:39,978 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:43:39,978 INFO L471 AbstractCegarLoop]: Abstraction has 65 states and 86 transitions. [2024-11-09 06:43:39,978 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.857142857142857) internal successors, (27), 7 states have internal predecessors, (27), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-09 06:43:39,979 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 86 transitions. [2024-11-09 06:43:39,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2024-11-09 06:43:39,981 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:43:39,981 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 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, 1, 1, 1, 1, 1, 1] [2024-11-09 06:43:39,990 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e687dc4b-6265-4e18-a5e4-ba852ba5e717/bin/utaipan-verify-YMUCfTKeje/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 [2024-11-09 06:43:40,185 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e687dc4b-6265-4e18-a5e4-ba852ba5e717/bin/utaipan-verify-YMUCfTKeje/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 [2024-11-09 06:43:40,186 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 06:43:40,186 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:43:40,187 INFO L85 PathProgramCache]: Analyzing trace with hash -1075554472, now seen corresponding path program 1 times [2024-11-09 06:43:40,187 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 06:43:40,188 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [956763634] [2024-11-09 06:43:40,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:43:40,188 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 [2024-11-09 06:43:40,188 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e687dc4b-6265-4e18-a5e4-ba852ba5e717/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 06:43:40,190 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e687dc4b-6265-4e18-a5e4-ba852ba5e717/bin/utaipan-verify-YMUCfTKeje/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) [2024-11-09 06:43:40,191 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e687dc4b-6265-4e18-a5e4-ba852ba5e717/bin/utaipan-verify-YMUCfTKeje/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 [2024-11-09 06:43:40,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:43:40,301 INFO L255 TraceCheckSpWp]: Trace formula consists of 181 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-11-09 06:43:40,304 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:43:57,121 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 326 proven. 36 refuted. 0 times theorem prover too weak. 250 trivial. 0 not checked. [2024-11-09 06:43:57,122 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 06:45:02,376 WARN L286 SmtUtils]: Spent 27.79s on a formula simplification. DAG size of input: 171 DAG size of output: 161 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 06:45:23,991 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 06:45:23,991 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [956763634] [2024-11-09 06:45:23,991 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [956763634] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 06:45:23,992 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1895779350] [2024-11-09 06:45:23,992 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:45:23,992 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-09 06:45:23,993 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e687dc4b-6265-4e18-a5e4-ba852ba5e717/bin/utaipan-verify-YMUCfTKeje/cvc4 [2024-11-09 06:45:23,995 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e687dc4b-6265-4e18-a5e4-ba852ba5e717/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-09 06:45:23,997 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e687dc4b-6265-4e18-a5e4-ba852ba5e717/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (10)] Waiting until timeout for monitored process [2024-11-09 06:45:24,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:45:24,576 INFO L255 TraceCheckSpWp]: Trace formula consists of 181 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-09 06:45:24,579 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:45:33,554 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-09 06:45:33,555 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 06:45:33,555 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1895779350] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:45:33,555 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 06:45:33,555 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [13] total 18 [2024-11-09 06:45:33,556 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [766821411] [2024-11-09 06:45:33,556 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:45:33,556 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-09 06:45:33,556 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 06:45:33,557 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-09 06:45:33,558 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=101, Invalid=451, Unknown=0, NotChecked=0, Total=552 [2024-11-09 06:45:33,558 INFO L87 Difference]: Start difference. First operand 65 states and 86 transitions. Second operand has 9 states, 9 states have (on average 3.0) internal successors, (27), 9 states have internal predecessors, (27), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-09 06:45:35,798 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:45:35,798 INFO L93 Difference]: Finished difference Result 88 states and 110 transitions. [2024-11-09 06:45:35,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-09 06:45:35,800 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 3.0) internal successors, (27), 9 states have internal predecessors, (27), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 114 [2024-11-09 06:45:35,801 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:45:35,802 INFO L225 Difference]: With dead ends: 88 [2024-11-09 06:45:35,803 INFO L226 Difference]: Without dead ends: 86 [2024-11-09 06:45:35,803 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 239 GetRequests, 215 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 157 ImplicationChecksByTransitivity, 41.9s TimeCoverageRelationStatistics Valid=125, Invalid=525, Unknown=0, NotChecked=0, Total=650 [2024-11-09 06:45:35,805 INFO L432 NwaCegarLoop]: 73 mSDtfsCounter, 29 mSDsluCounter, 307 mSDsCounter, 0 mSdLazyCounter, 99 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 380 SdHoareTripleChecker+Invalid, 99 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 99 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-09 06:45:35,805 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 380 Invalid, 99 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 99 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-09 06:45:35,806 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2024-11-09 06:45:35,821 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 65. [2024-11-09 06:45:35,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65 states, 43 states have (on average 1.1627906976744187) internal successors, (50), 43 states have internal predecessors, (50), 18 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2024-11-09 06:45:35,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 86 transitions. [2024-11-09 06:45:35,823 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 86 transitions. Word has length 114 [2024-11-09 06:45:35,824 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:45:35,824 INFO L471 AbstractCegarLoop]: Abstraction has 65 states and 86 transitions. [2024-11-09 06:45:35,824 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 3.0) internal successors, (27), 9 states have internal predecessors, (27), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-09 06:45:35,825 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 86 transitions. [2024-11-09 06:45:35,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2024-11-09 06:45:35,827 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:45:35,827 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 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, 1, 1, 1, 1, 1, 1] [2024-11-09 06:45:35,837 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e687dc4b-6265-4e18-a5e4-ba852ba5e717/bin/utaipan-verify-YMUCfTKeje/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 [2024-11-09 06:45:36,033 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e687dc4b-6265-4e18-a5e4-ba852ba5e717/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (10)] Ended with exit code 0 [2024-11-09 06:45:36,228 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e687dc4b-6265-4e18-a5e4-ba852ba5e717/bin/utaipan-verify-YMUCfTKeje/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 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e687dc4b-6265-4e18-a5e4-ba852ba5e717/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt [2024-11-09 06:45:36,228 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 06:45:36,229 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:45:36,229 INFO L85 PathProgramCache]: Analyzing trace with hash -1883054056, now seen corresponding path program 1 times [2024-11-09 06:45:36,229 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 06:45:36,230 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1330920000] [2024-11-09 06:45:36,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:45:36,230 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 [2024-11-09 06:45:36,230 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e687dc4b-6265-4e18-a5e4-ba852ba5e717/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 06:45:36,234 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e687dc4b-6265-4e18-a5e4-ba852ba5e717/bin/utaipan-verify-YMUCfTKeje/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) [2024-11-09 06:45:36,235 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e687dc4b-6265-4e18-a5e4-ba852ba5e717/bin/utaipan-verify-YMUCfTKeje/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 [2024-11-09 06:45:36,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:45:36,349 INFO L255 TraceCheckSpWp]: Trace formula consists of 181 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-11-09 06:45:36,352 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:45:53,306 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 326 proven. 36 refuted. 0 times theorem prover too weak. 250 trivial. 0 not checked. [2024-11-09 06:45:53,306 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 06:46:48,078 WARN L286 SmtUtils]: Spent 6.52s on a formula simplification that was a NOOP. DAG size: 148 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 06:47:03,983 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-09 06:47:03,984 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 06:47:03,984 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1330920000] [2024-11-09 06:47:03,984 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1330920000] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-09 06:47:03,984 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 06:47:03,985 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [13] total 18 [2024-11-09 06:47:03,985 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [750526814] [2024-11-09 06:47:03,985 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:47:03,986 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-09 06:47:03,986 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 06:47:03,988 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-09 06:47:03,989 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=248, Unknown=0, NotChecked=0, Total=306 [2024-11-09 06:47:03,989 INFO L87 Difference]: Start difference. First operand 65 states and 86 transitions. Second operand has 7 states, 7 states have (on average 3.857142857142857) internal successors, (27), 7 states have internal predecessors, (27), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-09 06:47:14,015 WARN L286 SmtUtils]: Spent 6.87s on a formula simplification that was a NOOP. DAG size: 152 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 06:47:21,343 WARN L286 SmtUtils]: Spent 5.94s on a formula simplification that was a NOOP. DAG size: 152 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 06:47:21,868 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:47:21,868 INFO L93 Difference]: Finished difference Result 96 states and 120 transitions. [2024-11-09 06:47:21,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-09 06:47:21,871 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.857142857142857) internal successors, (27), 7 states have internal predecessors, (27), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 114 [2024-11-09 06:47:21,871 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:47:21,872 INFO L225 Difference]: With dead ends: 96 [2024-11-09 06:47:21,872 INFO L226 Difference]: Without dead ends: 94 [2024-11-09 06:47:21,872 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 228 GetRequests, 210 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74 ImplicationChecksByTransitivity, 29.4s TimeCoverageRelationStatistics Valid=70, Invalid=310, Unknown=0, NotChecked=0, Total=380 [2024-11-09 06:47:21,873 INFO L432 NwaCegarLoop]: 70 mSDtfsCounter, 33 mSDsluCounter, 201 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 271 SdHoareTripleChecker+Invalid, 67 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2024-11-09 06:47:21,874 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 271 Invalid, 67 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 4.5s Time] [2024-11-09 06:47:21,874 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states. [2024-11-09 06:47:21,889 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 66. [2024-11-09 06:47:21,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66 states, 44 states have (on average 1.1818181818181819) internal successors, (52), 44 states have internal predecessors, (52), 18 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2024-11-09 06:47:21,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 88 transitions. [2024-11-09 06:47:21,891 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 88 transitions. Word has length 114 [2024-11-09 06:47:21,891 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:47:21,892 INFO L471 AbstractCegarLoop]: Abstraction has 66 states and 88 transitions. [2024-11-09 06:47:21,892 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.857142857142857) internal successors, (27), 7 states have internal predecessors, (27), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-09 06:47:21,892 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 88 transitions. [2024-11-09 06:47:21,894 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2024-11-09 06:47:21,894 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:47:21,895 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 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, 1, 1, 1, 1, 1, 1] [2024-11-09 06:47:21,903 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e687dc4b-6265-4e18-a5e4-ba852ba5e717/bin/utaipan-verify-YMUCfTKeje/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)] Ended with exit code 0 [2024-11-09 06:47:22,095 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e687dc4b-6265-4e18-a5e4-ba852ba5e717/bin/utaipan-verify-YMUCfTKeje/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 [2024-11-09 06:47:22,096 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 06:47:22,096 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:47:22,096 INFO L85 PathProgramCache]: Analyzing trace with hash -1884901098, now seen corresponding path program 1 times [2024-11-09 06:47:22,097 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 06:47:22,097 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1296907914] [2024-11-09 06:47:22,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:47:22,097 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 [2024-11-09 06:47:22,097 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e687dc4b-6265-4e18-a5e4-ba852ba5e717/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 06:47:22,101 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e687dc4b-6265-4e18-a5e4-ba852ba5e717/bin/utaipan-verify-YMUCfTKeje/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) [2024-11-09 06:47:22,103 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e687dc4b-6265-4e18-a5e4-ba852ba5e717/bin/utaipan-verify-YMUCfTKeje/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 (12)] Waiting until timeout for monitored process [2024-11-09 06:47:22,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:47:22,224 INFO L255 TraceCheckSpWp]: Trace formula consists of 181 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-11-09 06:47:22,228 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:47:39,316 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 326 proven. 36 refuted. 0 times theorem prover too weak. 250 trivial. 0 not checked. [2024-11-09 06:47:39,316 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 06:48:45,136 WARN L286 SmtUtils]: Spent 28.58s on a formula simplification. DAG size of input: 171 DAG size of output: 161 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 06:49:05,083 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 06:49:05,083 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1296907914] [2024-11-09 06:49:05,084 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1296907914] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 06:49:05,084 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1265969347] [2024-11-09 06:49:05,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:49:05,084 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-09 06:49:05,084 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e687dc4b-6265-4e18-a5e4-ba852ba5e717/bin/utaipan-verify-YMUCfTKeje/cvc4 [2024-11-09 06:49:05,089 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e687dc4b-6265-4e18-a5e4-ba852ba5e717/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-09 06:49:05,090 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e687dc4b-6265-4e18-a5e4-ba852ba5e717/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (13)] Waiting until timeout for monitored process [2024-11-09 06:49:05,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:49:05,570 INFO L255 TraceCheckSpWp]: Trace formula consists of 181 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-09 06:49:05,573 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:49:15,910 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-09 06:49:15,910 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 06:49:15,911 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1265969347] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:49:15,911 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 06:49:15,911 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [13] total 18 [2024-11-09 06:49:15,911 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1190877030] [2024-11-09 06:49:15,912 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:49:15,912 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-09 06:49:15,912 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 06:49:15,913 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-09 06:49:15,913 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=101, Invalid=451, Unknown=0, NotChecked=0, Total=552 [2024-11-09 06:49:15,914 INFO L87 Difference]: Start difference. First operand 66 states and 88 transitions. Second operand has 9 states, 9 states have (on average 3.0) internal successors, (27), 9 states have internal predecessors, (27), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-09 06:49:18,389 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:49:18,390 INFO L93 Difference]: Finished difference Result 86 states and 108 transitions. [2024-11-09 06:49:18,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-09 06:49:18,392 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 3.0) internal successors, (27), 9 states have internal predecessors, (27), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 114 [2024-11-09 06:49:18,392 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:49:18,393 INFO L225 Difference]: With dead ends: 86 [2024-11-09 06:49:18,393 INFO L226 Difference]: Without dead ends: 84 [2024-11-09 06:49:18,394 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 239 GetRequests, 215 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 157 ImplicationChecksByTransitivity, 43.6s TimeCoverageRelationStatistics Valid=125, Invalid=525, Unknown=0, NotChecked=0, Total=650 [2024-11-09 06:49:18,395 INFO L432 NwaCegarLoop]: 80 mSDtfsCounter, 21 mSDsluCounter, 273 mSDsCounter, 0 mSdLazyCounter, 99 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 353 SdHoareTripleChecker+Invalid, 99 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 99 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-09 06:49:18,396 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 353 Invalid, 99 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 99 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-09 06:49:18,397 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2024-11-09 06:49:18,410 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 63. [2024-11-09 06:49:18,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63 states, 41 states have (on average 1.170731707317073) internal successors, (48), 41 states have internal predecessors, (48), 18 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2024-11-09 06:49:18,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 84 transitions. [2024-11-09 06:49:18,412 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 84 transitions. Word has length 114 [2024-11-09 06:49:18,413 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:49:18,413 INFO L471 AbstractCegarLoop]: Abstraction has 63 states and 84 transitions. [2024-11-09 06:49:18,414 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 3.0) internal successors, (27), 9 states have internal predecessors, (27), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-09 06:49:18,414 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 84 transitions. [2024-11-09 06:49:18,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2024-11-09 06:49:18,416 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:49:18,416 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 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, 1, 1, 1, 1, 1, 1] [2024-11-09 06:49:18,426 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e687dc4b-6265-4e18-a5e4-ba852ba5e717/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (13)] Ended with exit code 0 [2024-11-09 06:49:18,621 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e687dc4b-6265-4e18-a5e4-ba852ba5e717/bin/utaipan-verify-YMUCfTKeje/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 (12)] Ended with exit code 0 [2024-11-09 06:49:18,817 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e687dc4b-6265-4e18-a5e4-ba852ba5e717/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e687dc4b-6265-4e18-a5e4-ba852ba5e717/bin/utaipan-verify-YMUCfTKeje/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 [2024-11-09 06:49:18,817 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 06:49:18,818 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:49:18,818 INFO L85 PathProgramCache]: Analyzing trace with hash -1753765800, now seen corresponding path program 1 times [2024-11-09 06:49:18,818 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 06:49:18,818 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1015363493] [2024-11-09 06:49:18,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:49:18,819 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 [2024-11-09 06:49:18,819 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e687dc4b-6265-4e18-a5e4-ba852ba5e717/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 06:49:18,820 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e687dc4b-6265-4e18-a5e4-ba852ba5e717/bin/utaipan-verify-YMUCfTKeje/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) [2024-11-09 06:49:18,822 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e687dc4b-6265-4e18-a5e4-ba852ba5e717/bin/utaipan-verify-YMUCfTKeje/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 (14)] Waiting until timeout for monitored process [2024-11-09 06:49:18,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:49:18,937 INFO L255 TraceCheckSpWp]: Trace formula consists of 181 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-09 06:49:18,941 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:49:31,755 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-09 06:49:31,755 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 06:49:31,755 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 06:49:31,756 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1015363493] [2024-11-09 06:49:31,756 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1015363493] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:49:31,756 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:49:31,756 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-09 06:49:31,756 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2029368259] [2024-11-09 06:49:31,756 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:49:31,757 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-09 06:49:31,757 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 06:49:31,758 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-09 06:49:31,758 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-09 06:49:31,758 INFO L87 Difference]: Start difference. First operand 63 states and 84 transitions. Second operand has 7 states, 7 states have (on average 3.857142857142857) internal successors, (27), 7 states have internal predecessors, (27), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-09 06:49:34,390 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:49:34,390 INFO L93 Difference]: Finished difference Result 91 states and 114 transitions. [2024-11-09 06:49:34,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-09 06:49:34,392 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.857142857142857) internal successors, (27), 7 states have internal predecessors, (27), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 114 [2024-11-09 06:49:34,393 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:49:34,394 INFO L225 Difference]: With dead ends: 91 [2024-11-09 06:49:34,394 INFO L226 Difference]: Without dead ends: 89 [2024-11-09 06:49:34,395 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 108 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2024-11-09 06:49:34,396 INFO L432 NwaCegarLoop]: 74 mSDtfsCounter, 27 mSDsluCounter, 231 mSDsCounter, 0 mSdLazyCounter, 98 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 305 SdHoareTripleChecker+Invalid, 98 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 98 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-11-09 06:49:34,397 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 305 Invalid, 98 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 98 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-11-09 06:49:34,397 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2024-11-09 06:49:34,412 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 66. [2024-11-09 06:49:34,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66 states, 44 states have (on average 1.2045454545454546) internal successors, (53), 44 states have internal predecessors, (53), 18 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2024-11-09 06:49:34,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 89 transitions. [2024-11-09 06:49:34,414 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 89 transitions. Word has length 114 [2024-11-09 06:49:34,415 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:49:34,415 INFO L471 AbstractCegarLoop]: Abstraction has 66 states and 89 transitions. [2024-11-09 06:49:34,415 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.857142857142857) internal successors, (27), 7 states have internal predecessors, (27), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-09 06:49:34,416 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 89 transitions. [2024-11-09 06:49:34,417 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2024-11-09 06:49:34,418 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:49:34,418 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 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, 1, 1, 1, 1, 1, 1] [2024-11-09 06:49:34,424 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e687dc4b-6265-4e18-a5e4-ba852ba5e717/bin/utaipan-verify-YMUCfTKeje/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 (14)] Ended with exit code 0 [2024-11-09 06:49:34,618 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e687dc4b-6265-4e18-a5e4-ba852ba5e717/bin/utaipan-verify-YMUCfTKeje/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 [2024-11-09 06:49:34,619 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 06:49:34,619 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:49:34,620 INFO L85 PathProgramCache]: Analyzing trace with hash -1755612842, now seen corresponding path program 1 times [2024-11-09 06:49:34,620 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 06:49:34,621 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [919825608] [2024-11-09 06:49:34,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:49:34,621 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 [2024-11-09 06:49:34,621 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e687dc4b-6265-4e18-a5e4-ba852ba5e717/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 06:49:34,623 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e687dc4b-6265-4e18-a5e4-ba852ba5e717/bin/utaipan-verify-YMUCfTKeje/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) [2024-11-09 06:49:34,625 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e687dc4b-6265-4e18-a5e4-ba852ba5e717/bin/utaipan-verify-YMUCfTKeje/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 (15)] Waiting until timeout for monitored process [2024-11-09 06:49:34,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:49:34,775 INFO L255 TraceCheckSpWp]: Trace formula consists of 181 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-09 06:49:34,779 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:49:48,633 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-09 06:49:48,634 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 06:49:48,634 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 06:49:48,635 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [919825608] [2024-11-09 06:49:48,635 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [919825608] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:49:48,635 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:49:48,635 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-09 06:49:48,636 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1607306169] [2024-11-09 06:49:48,636 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:49:48,636 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-09 06:49:48,637 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 06:49:48,637 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-09 06:49:48,638 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2024-11-09 06:49:48,638 INFO L87 Difference]: Start difference. First operand 66 states and 89 transitions. Second operand has 9 states, 9 states have (on average 3.0) internal successors, (27), 9 states have internal predecessors, (27), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-09 06:49:52,375 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:49:52,375 INFO L93 Difference]: Finished difference Result 92 states and 115 transitions. [2024-11-09 06:49:52,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-09 06:49:52,378 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 3.0) internal successors, (27), 9 states have internal predecessors, (27), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 114 [2024-11-09 06:49:52,378 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:49:52,379 INFO L225 Difference]: With dead ends: 92 [2024-11-09 06:49:52,379 INFO L226 Difference]: Without dead ends: 90 [2024-11-09 06:49:52,380 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 106 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=37, Invalid=73, Unknown=0, NotChecked=0, Total=110 [2024-11-09 06:49:52,381 INFO L432 NwaCegarLoop]: 79 mSDtfsCounter, 31 mSDsluCounter, 288 mSDsCounter, 0 mSdLazyCounter, 148 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 367 SdHoareTripleChecker+Invalid, 148 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 148 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2024-11-09 06:49:52,381 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 367 Invalid, 148 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 148 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2024-11-09 06:49:52,382 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2024-11-09 06:49:52,396 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 65. [2024-11-09 06:49:52,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65 states, 43 states have (on average 1.186046511627907) internal successors, (51), 43 states have internal predecessors, (51), 18 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2024-11-09 06:49:52,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 87 transitions. [2024-11-09 06:49:52,398 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 87 transitions. Word has length 114 [2024-11-09 06:49:52,398 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:49:52,399 INFO L471 AbstractCegarLoop]: Abstraction has 65 states and 87 transitions. [2024-11-09 06:49:52,399 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 3.0) internal successors, (27), 9 states have internal predecessors, (27), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-09 06:49:52,399 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 87 transitions. [2024-11-09 06:49:52,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2024-11-09 06:49:52,401 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:49:52,401 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 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, 1, 1, 1, 1, 1, 1] [2024-11-09 06:49:52,409 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e687dc4b-6265-4e18-a5e4-ba852ba5e717/bin/utaipan-verify-YMUCfTKeje/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 (15)] Ended with exit code 0 [2024-11-09 06:49:52,605 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e687dc4b-6265-4e18-a5e4-ba852ba5e717/bin/utaipan-verify-YMUCfTKeje/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 [2024-11-09 06:49:52,606 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 06:49:52,607 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:49:52,607 INFO L85 PathProgramCache]: Analyzing trace with hash 1731854870, now seen corresponding path program 1 times [2024-11-09 06:49:52,608 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 06:49:52,608 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [257320724] [2024-11-09 06:49:52,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:49:52,608 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 [2024-11-09 06:49:52,609 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e687dc4b-6265-4e18-a5e4-ba852ba5e717/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 06:49:52,612 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e687dc4b-6265-4e18-a5e4-ba852ba5e717/bin/utaipan-verify-YMUCfTKeje/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) [2024-11-09 06:49:52,614 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e687dc4b-6265-4e18-a5e4-ba852ba5e717/bin/utaipan-verify-YMUCfTKeje/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 (16)] Waiting until timeout for monitored process [2024-11-09 06:49:52,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:49:52,779 INFO L255 TraceCheckSpWp]: Trace formula consists of 181 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-09 06:49:52,783 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:50:05,684 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-09 06:50:05,685 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 06:50:05,685 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 06:50:05,685 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [257320724] [2024-11-09 06:50:05,685 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [257320724] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:50:05,685 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:50:05,686 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-09 06:50:05,686 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1178692174] [2024-11-09 06:50:05,686 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:50:05,686 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-09 06:50:05,687 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 06:50:05,687 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-09 06:50:05,687 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-09 06:50:05,687 INFO L87 Difference]: Start difference. First operand 65 states and 87 transitions. Second operand has 7 states, 7 states have (on average 3.857142857142857) internal successors, (27), 7 states have internal predecessors, (27), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-09 06:50:08,558 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:50:08,558 INFO L93 Difference]: Finished difference Result 86 states and 109 transitions. [2024-11-09 06:50:08,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-09 06:50:08,561 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.857142857142857) internal successors, (27), 7 states have internal predecessors, (27), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 114 [2024-11-09 06:50:08,561 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:50:08,562 INFO L225 Difference]: With dead ends: 86 [2024-11-09 06:50:08,562 INFO L226 Difference]: Without dead ends: 84 [2024-11-09 06:50:08,562 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 108 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2024-11-09 06:50:08,563 INFO L432 NwaCegarLoop]: 81 mSDtfsCounter, 25 mSDsluCounter, 239 mSDsCounter, 0 mSdLazyCounter, 116 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 320 SdHoareTripleChecker+Invalid, 116 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 116 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2024-11-09 06:50:08,563 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 320 Invalid, 116 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 116 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2024-11-09 06:50:08,564 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2024-11-09 06:50:08,578 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 65. [2024-11-09 06:50:08,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65 states, 43 states have (on average 1.186046511627907) internal successors, (51), 43 states have internal predecessors, (51), 18 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2024-11-09 06:50:08,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 87 transitions. [2024-11-09 06:50:08,579 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 87 transitions. Word has length 114 [2024-11-09 06:50:08,580 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:50:08,580 INFO L471 AbstractCegarLoop]: Abstraction has 65 states and 87 transitions. [2024-11-09 06:50:08,580 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.857142857142857) internal successors, (27), 7 states have internal predecessors, (27), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-09 06:50:08,581 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 87 transitions. [2024-11-09 06:50:08,582 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2024-11-09 06:50:08,582 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:50:08,583 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 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, 1, 1, 1, 1, 1, 1] [2024-11-09 06:50:08,591 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e687dc4b-6265-4e18-a5e4-ba852ba5e717/bin/utaipan-verify-YMUCfTKeje/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 (16)] Forceful destruction successful, exit code 0 [2024-11-09 06:50:08,786 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e687dc4b-6265-4e18-a5e4-ba852ba5e717/bin/utaipan-verify-YMUCfTKeje/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 [2024-11-09 06:50:08,787 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 06:50:08,787 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:50:08,787 INFO L85 PathProgramCache]: Analyzing trace with hash 1730007828, now seen corresponding path program 1 times [2024-11-09 06:50:08,787 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 06:50:08,788 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [976291395] [2024-11-09 06:50:08,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:50:08,788 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 [2024-11-09 06:50:08,788 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e687dc4b-6265-4e18-a5e4-ba852ba5e717/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 06:50:08,792 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e687dc4b-6265-4e18-a5e4-ba852ba5e717/bin/utaipan-verify-YMUCfTKeje/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) [2024-11-09 06:50:08,794 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e687dc4b-6265-4e18-a5e4-ba852ba5e717/bin/utaipan-verify-YMUCfTKeje/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 (17)] Waiting until timeout for monitored process [2024-11-09 06:50:08,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:50:08,944 INFO L255 TraceCheckSpWp]: Trace formula consists of 181 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-09 06:50:08,948 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:50:23,610 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-09 06:50:23,610 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 06:50:23,611 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 06:50:23,611 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [976291395] [2024-11-09 06:50:23,611 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [976291395] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:50:23,611 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:50:23,611 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-09 06:50:23,611 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1158825483] [2024-11-09 06:50:23,612 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:50:23,612 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-09 06:50:23,612 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 06:50:23,613 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-09 06:50:23,613 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2024-11-09 06:50:23,613 INFO L87 Difference]: Start difference. First operand 65 states and 87 transitions. Second operand has 9 states, 9 states have (on average 3.0) internal successors, (27), 9 states have internal predecessors, (27), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-09 06:50:27,727 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:50:27,728 INFO L93 Difference]: Finished difference Result 87 states and 110 transitions. [2024-11-09 06:50:27,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-09 06:50:27,730 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 3.0) internal successors, (27), 9 states have internal predecessors, (27), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 114 [2024-11-09 06:50:27,730 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:50:27,731 INFO L225 Difference]: With dead ends: 87 [2024-11-09 06:50:27,731 INFO L226 Difference]: Without dead ends: 0 [2024-11-09 06:50:27,731 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 106 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=37, Invalid=73, Unknown=0, NotChecked=0, Total=110 [2024-11-09 06:50:27,732 INFO L432 NwaCegarLoop]: 84 mSDtfsCounter, 28 mSDsluCounter, 298 mSDsCounter, 0 mSdLazyCounter, 168 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 382 SdHoareTripleChecker+Invalid, 168 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 168 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2024-11-09 06:50:27,733 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 382 Invalid, 168 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 168 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2024-11-09 06:50:27,735 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-09 06:50:27,735 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-09 06:50:27,735 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) [2024-11-09 06:50:27,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-09 06:50:27,736 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 114 [2024-11-09 06:50:27,736 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:50:27,736 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-09 06:50:27,736 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 3.0) internal successors, (27), 9 states have internal predecessors, (27), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-09 06:50:27,736 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-09 06:50:27,737 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-09 06:50:27,739 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-09 06:50:27,747 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e687dc4b-6265-4e18-a5e4-ba852ba5e717/bin/utaipan-verify-YMUCfTKeje/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 (17)] Ended with exit code 0 [2024-11-09 06:50:27,940 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e687dc4b-6265-4e18-a5e4-ba852ba5e717/bin/utaipan-verify-YMUCfTKeje/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 [2024-11-09 06:50:27,944 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:50:27,946 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-09 06:51:51,538 WARN L286 SmtUtils]: Spent 1.39m on a formula simplification. DAG size of input: 269 DAG size of output: 628 (called from [L 212] de.uni_freiburg.informatik.ultimate.lib.proofs.floydhoare.HoareAnnotationComposer.or) [2024-11-09 06:53:08,238 WARN L286 SmtUtils]: Spent 1.23m on a formula simplification. DAG size of input: 628 DAG size of output: 7 (called from [L 162] de.uni_freiburg.informatik.ultimate.lib.proofs.floydhoare.HoareAnnotationComposer.combineInter) [2024-11-09 06:53:09,755 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-09 06:53:09,779 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.11 06:53:09 BoogieIcfgContainer [2024-11-09 06:53:09,780 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-09 06:53:09,781 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-09 06:53:09,781 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-09 06:53:09,781 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-09 06:53:09,782 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 06:41:53" (3/4) ... [2024-11-09 06:53:09,784 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-09 06:53:09,790 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure assume_abort_if_not [2024-11-09 06:53:09,799 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2024-11-09 06:53:09,799 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2024-11-09 06:53:09,799 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-09 06:53:09,800 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-09 06:53:09,949 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e687dc4b-6265-4e18-a5e4-ba852ba5e717/bin/utaipan-verify-YMUCfTKeje/witness.graphml [2024-11-09 06:53:09,949 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e687dc4b-6265-4e18-a5e4-ba852ba5e717/bin/utaipan-verify-YMUCfTKeje/witness.yml [2024-11-09 06:53:09,949 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-09 06:53:09,951 INFO L158 Benchmark]: Toolchain (without parser) took 678005.45ms. Allocated memory was 88.1MB in the beginning and 775.9MB in the end (delta: 687.9MB). Free memory was 63.4MB in the beginning and 490.8MB in the end (delta: -427.4MB). Peak memory consumption was 262.6MB. Max. memory is 16.1GB. [2024-11-09 06:53:09,951 INFO L158 Benchmark]: CDTParser took 0.40ms. Allocated memory is still 65.0MB. Free memory was 40.9MB in the beginning and 40.9MB in the end (delta: 73.4kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 06:53:09,952 INFO L158 Benchmark]: CACSL2BoogieTranslator took 477.89ms. Allocated memory is still 88.1MB. Free memory was 63.2MB in the beginning and 48.5MB in the end (delta: 14.8MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-11-09 06:53:09,953 INFO L158 Benchmark]: Boogie Procedure Inliner took 110.64ms. Allocated memory is still 88.1MB. Free memory was 48.5MB in the beginning and 66.2MB in the end (delta: -17.8MB). Peak memory consumption was 5.3MB. Max. memory is 16.1GB. [2024-11-09 06:53:09,954 INFO L158 Benchmark]: Boogie Preprocessor took 100.65ms. Allocated memory is still 88.1MB. Free memory was 66.2MB in the beginning and 64.3MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-09 06:53:09,954 INFO L158 Benchmark]: RCFGBuilder took 615.83ms. Allocated memory is still 88.1MB. Free memory was 64.3MB in the beginning and 49.3MB in the end (delta: 15.0MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-11-09 06:53:09,955 INFO L158 Benchmark]: TraceAbstraction took 676523.06ms. Allocated memory was 88.1MB in the beginning and 775.9MB in the end (delta: 687.9MB). Free memory was 48.8MB in the beginning and 497.1MB in the end (delta: -448.3MB). Peak memory consumption was 465.1MB. Max. memory is 16.1GB. [2024-11-09 06:53:09,955 INFO L158 Benchmark]: Witness Printer took 169.02ms. Allocated memory is still 775.9MB. Free memory was 497.1MB in the beginning and 490.8MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2024-11-09 06:53:09,957 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.40ms. Allocated memory is still 65.0MB. Free memory was 40.9MB in the beginning and 40.9MB in the end (delta: 73.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 477.89ms. Allocated memory is still 88.1MB. Free memory was 63.2MB in the beginning and 48.5MB in the end (delta: 14.8MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 110.64ms. Allocated memory is still 88.1MB. Free memory was 48.5MB in the beginning and 66.2MB in the end (delta: -17.8MB). Peak memory consumption was 5.3MB. Max. memory is 16.1GB. * Boogie Preprocessor took 100.65ms. Allocated memory is still 88.1MB. Free memory was 66.2MB in the beginning and 64.3MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 615.83ms. Allocated memory is still 88.1MB. Free memory was 64.3MB in the beginning and 49.3MB in the end (delta: 15.0MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 676523.06ms. Allocated memory was 88.1MB in the beginning and 775.9MB in the end (delta: 687.9MB). Free memory was 48.8MB in the beginning and 497.1MB in the end (delta: -448.3MB). Peak memory consumption was 465.1MB. Max. memory is 16.1GB. * Witness Printer took 169.02ms. Allocated memory is still 775.9MB. Free memory was 497.1MB in the beginning and 490.8MB 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.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, 52 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 514.6s, OverallIterations: 12, TraceHistogramMax: 18, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 59.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 521 SdHoareTripleChecker+Valid, 23.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 509 mSDsluCounter, 3644 SdHoareTripleChecker+Invalid, 22.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2732 mSDsCounter, 236 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1591 IncrementalHoareTripleChecker+Invalid, 1827 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 236 mSolverCounterUnsat, 912 mSDtfsCounter, 1591 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2432 GetRequests, 2263 SyntacticMatches, 0 SemanticMatches, 169 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 843 ImplicationChecksByTransitivity, 150.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=66occurred in iteration=7, InterpolantAutomatonStates: 114, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 12 MinimizatonAttempts, 311 StatesRemovedByMinimization, 10 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.4s SsaConstructionTime, 3.0s SatisfiabilityAnalysisTime, 447.2s InterpolantComputationTime, 1818 NumberOfCodeBlocks, 1818 NumberOfCodeBlocksAsserted, 16 NumberOfCheckSat, 2364 ConstructedInterpolants, 10 QuantifiedInterpolants, 15697 SizeOfPredicates, 192 NumberOfNonLiveVariables, 2890 ConjunctsInSsa, 192 ConjunctsInUnsatCore, 21 InterpolantComputations, 11 PerfectInterpolantSequences, 12552/12852 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: 98]: Loop Invariant Derived loop invariant: ((var_1_12 <= 127) && (var_1_12 >= 64)) - ProcedureContractResult [Line: 20]: Procedure Contract for assume_abort_if_not Derived contract for procedure assume_abort_if_not. Ensures: ((0 != cond) && ((((((((((((((isInitial == \old(isInitial)) && (var_1_1 == \old(var_1_1))) && (var_1_2 == \old(var_1_2))) && (var_1_5 == \old(var_1_5))) && (var_1_6 == \old(var_1_6))) && (var_1_7 == \old(var_1_7))) && (var_1_8 == \old(var_1_8))) && (var_1_9 == \old(var_1_9))) && (var_1_10 == \old(var_1_10))) && (var_1_11 == \old(var_1_11))) && (var_1_12 == \old(var_1_12))) && (var_1_13 == \old(var_1_13))) && (var_1_14 == \old(var_1_14))) && (var_1_15 == \old(var_1_15)))) RESULT: Ultimate proved your program to be correct! [2024-11-09 06:53:10,182 WARN L435 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e687dc4b-6265-4e18-a5e4-ba852ba5e717/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forcibly destroying the process [2024-11-09 06:53:10,252 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e687dc4b-6265-4e18-a5e4-ba852ba5e717/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 137 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE