./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-84.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a0165632 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd8b4c85-0c3b-41d6-b281-45b0627e81bb/bin/utaipan-verify-YMUCfTKeje/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd8b4c85-0c3b-41d6-b281-45b0627e81bb/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_bd8b4c85-0c3b-41d6-b281-45b0627e81bb/bin/utaipan-verify-YMUCfTKeje/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd8b4c85-0c3b-41d6-b281-45b0627e81bb/bin/utaipan-verify-YMUCfTKeje/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-84.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd8b4c85-0c3b-41d6-b281-45b0627e81bb/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_bd8b4c85-0c3b-41d6-b281-45b0627e81bb/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 7e8dd03ff6ba8f306af161cccb833486a1e5ea2d1b42cd2cf566ce58d3c9e67f --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-09 06:17:25,852 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 06:17:25,938 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd8b4c85-0c3b-41d6-b281-45b0627e81bb/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Reach-32bit-Taipan_Default.epf [2024-11-09 06:17:25,945 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 06:17:25,947 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 06:17:25,973 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 06:17:25,975 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 06:17:25,976 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 06:17:25,977 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 06:17:25,977 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 06:17:25,977 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-09 06:17:25,978 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-09 06:17:25,978 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-09 06:17:25,978 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-09 06:17:25,979 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-09 06:17:25,979 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-09 06:17:25,982 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-09 06:17:25,983 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-09 06:17:25,983 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-09 06:17:25,983 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-09 06:17:25,983 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-09 06:17:25,984 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-09 06:17:25,989 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 06:17:25,989 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 06:17:25,989 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 06:17:25,989 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 06:17:25,990 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 06:17:25,990 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 06:17:25,990 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 06:17:25,990 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 06:17:25,990 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 06:17:25,991 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 06:17:25,991 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 06:17:25,991 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 06:17:25,993 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 06:17:25,993 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 06:17:25,994 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 06:17:25,994 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 06:17:25,994 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 06:17:25,995 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 06:17:25,995 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 06:17:25,996 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 06:17:25,996 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-09 06:17:25,996 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 06:17:25,996 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 06:17:25,997 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-09 06:17:25,997 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 06:17:25,997 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_bd8b4c85-0c3b-41d6-b281-45b0627e81bb/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd8b4c85-0c3b-41d6-b281-45b0627e81bb/bin/utaipan-verify-YMUCfTKeje Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7e8dd03ff6ba8f306af161cccb833486a1e5ea2d1b42cd2cf566ce58d3c9e67f [2024-11-09 06:17:26,304 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 06:17:26,330 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 06:17:26,334 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 06:17:26,336 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 06:17:26,337 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 06:17:26,338 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd8b4c85-0c3b-41d6-b281-45b0627e81bb/bin/utaipan-verify-YMUCfTKeje/../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-84.i Unable to find full path for "g++" [2024-11-09 06:17:28,268 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 06:17:28,443 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 06:17:28,443 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd8b4c85-0c3b-41d6-b281-45b0627e81bb/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-84.i [2024-11-09 06:17:28,453 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd8b4c85-0c3b-41d6-b281-45b0627e81bb/bin/utaipan-verify-YMUCfTKeje/data/4b48e9fef/cb5000e856a94b3abbbcc94e61a34314/FLAG474c6fdb8 [2024-11-09 06:17:28,467 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd8b4c85-0c3b-41d6-b281-45b0627e81bb/bin/utaipan-verify-YMUCfTKeje/data/4b48e9fef/cb5000e856a94b3abbbcc94e61a34314 [2024-11-09 06:17:28,472 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 06:17:28,473 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 06:17:28,478 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 06:17:28,478 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 06:17:28,483 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 06:17:28,483 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 06:17:28" (1/1) ... [2024-11-09 06:17:28,484 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4aaeab07 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:17:28, skipping insertion in model container [2024-11-09 06:17:28,485 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 06:17:28" (1/1) ... [2024-11-09 06:17:28,510 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 06:17:28,749 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_bd8b4c85-0c3b-41d6-b281-45b0627e81bb/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-84.i[915,928] [2024-11-09 06:17:28,795 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 06:17:28,804 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 06:17:28,815 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_bd8b4c85-0c3b-41d6-b281-45b0627e81bb/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-84.i[915,928] [2024-11-09 06:17:28,840 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 06:17:28,860 INFO L204 MainTranslator]: Completed translation [2024-11-09 06:17:28,860 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:17:28 WrapperNode [2024-11-09 06:17:28,860 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 06:17:28,861 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 06:17:28,862 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 06:17:28,862 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 06:17:28,868 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:17:28" (1/1) ... [2024-11-09 06:17:28,875 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:17:28" (1/1) ... [2024-11-09 06:17:28,912 INFO L138 Inliner]: procedures = 26, calls = 24, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 98 [2024-11-09 06:17:28,913 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 06:17:28,913 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 06:17:28,914 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 06:17:28,914 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 06:17:28,923 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:17:28" (1/1) ... [2024-11-09 06:17:28,926 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:17:28" (1/1) ... [2024-11-09 06:17:28,929 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:17:28" (1/1) ... [2024-11-09 06:17:28,933 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:17:28" (1/1) ... [2024-11-09 06:17:28,946 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:17:28" (1/1) ... [2024-11-09 06:17:28,950 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:17:28" (1/1) ... [2024-11-09 06:17:28,952 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:17:28" (1/1) ... [2024-11-09 06:17:28,953 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:17:28" (1/1) ... [2024-11-09 06:17:28,957 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 06:17:28,958 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 06:17:28,958 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 06:17:28,958 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 06:17:28,959 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:17:28" (1/1) ... [2024-11-09 06:17:28,964 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 06:17:28,977 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd8b4c85-0c3b-41d6-b281-45b0627e81bb/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 06:17:28,993 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd8b4c85-0c3b-41d6-b281-45b0627e81bb/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-09 06:17:29,001 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd8b4c85-0c3b-41d6-b281-45b0627e81bb/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-09 06:17:29,029 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 06:17:29,030 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-09 06:17:29,030 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-09 06:17:29,032 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-09 06:17:29,032 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 06:17:29,032 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 06:17:29,133 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 06:17:29,136 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 06:17:29,522 INFO L? ?]: Removed 18 outVars from TransFormulas that were not future-live. [2024-11-09 06:17:29,522 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 06:17:29,653 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 06:17:29,653 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-09 06:17:29,654 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 06:17:29 BoogieIcfgContainer [2024-11-09 06:17:29,654 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 06:17:29,657 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 06:17:29,657 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 06:17:29,660 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 06:17:29,660 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 06:17:28" (1/3) ... [2024-11-09 06:17:29,661 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ccd2e44 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 06:17:29, skipping insertion in model container [2024-11-09 06:17:29,661 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:17:28" (2/3) ... [2024-11-09 06:17:29,661 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ccd2e44 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 06:17:29, skipping insertion in model container [2024-11-09 06:17:29,661 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 06:17:29" (3/3) ... [2024-11-09 06:17:29,663 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_loopvsstraightlinecode_25-1loop_file-84.i [2024-11-09 06:17:29,679 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 06:17:29,680 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-09 06:17:29,739 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 06:17:29,746 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;@f409c67, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 06:17:29,746 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-09 06:17:29,750 INFO L276 IsEmpty]: Start isEmpty. Operand has 29 states, 15 states have (on average 1.2666666666666666) internal successors, (19), 16 states have internal predecessors, (19), 11 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2024-11-09 06:17:29,758 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2024-11-09 06:17:29,759 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:17:29,759 INFO L215 NwaCegarLoop]: trace histogram [11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:17:29,760 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 06:17:29,765 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:17:29,766 INFO L85 PathProgramCache]: Analyzing trace with hash 667039874, now seen corresponding path program 1 times [2024-11-09 06:17:29,775 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:17:29,776 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1626224959] [2024-11-09 06:17:29,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:17:29,776 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:17:29,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 06:17:29,971 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 06:17:30,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 06:17:30,127 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2024-11-09 06:17:30,129 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-09 06:17:30,131 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-09 06:17:30,133 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-09 06:17:30,137 INFO L407 BasicCegarLoop]: Path program histogram: [1] [2024-11-09 06:17:30,195 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-09 06:17:30,198 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.11 06:17:30 BoogieIcfgContainer [2024-11-09 06:17:30,198 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-09 06:17:30,199 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-09 06:17:30,199 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-09 06:17:30,199 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-09 06:17:30,200 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 06:17:29" (3/4) ... [2024-11-09 06:17:30,203 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-09 06:17:30,204 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-09 06:17:30,205 INFO L158 Benchmark]: Toolchain (without parser) took 1730.99ms. Allocated memory is still 159.4MB. Free memory was 122.7MB in the beginning and 61.9MB in the end (delta: 60.8MB). Peak memory consumption was 59.2MB. Max. memory is 16.1GB. [2024-11-09 06:17:30,205 INFO L158 Benchmark]: CDTParser took 0.21ms. Allocated memory is still 113.2MB. Free memory is still 81.5MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 06:17:30,206 INFO L158 Benchmark]: CACSL2BoogieTranslator took 383.21ms. Allocated memory is still 159.4MB. Free memory was 122.6MB in the beginning and 120.7MB in the end (delta: 1.9MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2024-11-09 06:17:30,207 INFO L158 Benchmark]: Boogie Procedure Inliner took 51.55ms. Allocated memory is still 159.4MB. Free memory was 120.7MB in the beginning and 117.4MB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-09 06:17:30,207 INFO L158 Benchmark]: Boogie Preprocessor took 43.42ms. Allocated memory is still 159.4MB. Free memory was 117.4MB in the beginning and 115.8MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 06:17:30,208 INFO L158 Benchmark]: RCFGBuilder took 696.38ms. Allocated memory is still 159.4MB. Free memory was 115.4MB in the beginning and 89.7MB in the end (delta: 25.6MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-11-09 06:17:30,209 INFO L158 Benchmark]: TraceAbstraction took 541.75ms. Allocated memory is still 159.4MB. Free memory was 88.7MB in the beginning and 62.4MB in the end (delta: 26.3MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. [2024-11-09 06:17:30,210 INFO L158 Benchmark]: Witness Printer took 4.66ms. Allocated memory is still 159.4MB. Free memory was 62.4MB in the beginning and 61.9MB in the end (delta: 485.8kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 06:17:30,215 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21ms. Allocated memory is still 113.2MB. Free memory is still 81.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 383.21ms. Allocated memory is still 159.4MB. Free memory was 122.6MB in the beginning and 120.7MB in the end (delta: 1.9MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 51.55ms. Allocated memory is still 159.4MB. Free memory was 120.7MB in the beginning and 117.4MB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 43.42ms. Allocated memory is still 159.4MB. Free memory was 117.4MB in the beginning and 115.8MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 696.38ms. Allocated memory is still 159.4MB. Free memory was 115.4MB in the beginning and 89.7MB in the end (delta: 25.6MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * TraceAbstraction took 541.75ms. Allocated memory is still 159.4MB. Free memory was 88.7MB in the beginning and 62.4MB in the end (delta: 26.3MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. * Witness Printer took 4.66ms. Allocated memory is still 159.4MB. Free memory was 62.4MB in the beginning and 61.9MB in the end (delta: 485.8kB). 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 someBinaryFLOATComparisonOperation at line 51. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] unsigned char var_1_1 = 128; [L23] unsigned char var_1_4 = 25; [L24] unsigned char var_1_5 = 64; [L25] unsigned char var_1_6 = 8; [L26] unsigned char var_1_7 = 0; [L27] unsigned char var_1_8 = 10; [L28] float var_1_9 = 9.6; [L29] float var_1_10 = 99.08; [L30] float var_1_11 = 63.4; [L31] float var_1_12 = 32.125; [L32] signed long int var_1_13 = -8; [L33] signed short int var_1_14 = -2; [L88] isInitial = 1 [L89] FCALL initially() [L90] int k_loop; [L91] k_loop = 0 VAL [isInitial=1, k_loop=0, var_1_10=2477/25, var_1_11=317/5, var_1_12=257/8, var_1_13=-8, var_1_14=-2, var_1_1=128, var_1_4=25, var_1_5=64, var_1_6=8, var_1_7=0, var_1_8=10, var_1_9=48/5] [L91] COND FALSE !(k_loop < 1) VAL [isInitial=1, k_loop=0, var_1_10=2477/25, var_1_11=317/5, var_1_12=257/8, var_1_13=-8, var_1_14=-2, var_1_1=128, var_1_4=25, var_1_5=64, var_1_6=8, var_1_7=0, var_1_8=10, var_1_9=48/5] [L91] COND TRUE k_loop < 1 [L92] FCALL updateLastVariables() [L93] CALL updateVariables() [L62] var_1_4 = __VERIFIER_nondet_uchar() [L63] CALL assume_abort_if_not(var_1_4 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=2477/25, var_1_11=317/5, var_1_12=257/8, var_1_13=-8, var_1_14=-2, var_1_1=128, var_1_5=64, var_1_6=8, var_1_7=0, var_1_8=10, var_1_9=48/5] [L20] COND FALSE !(!cond) [L63] RET assume_abort_if_not(var_1_4 >= 0) VAL [isInitial=1, var_1_10=2477/25, var_1_11=317/5, var_1_12=257/8, var_1_13=-8, var_1_14=-2, var_1_1=128, var_1_5=64, var_1_6=8, var_1_7=0, var_1_8=10, var_1_9=48/5] [L64] CALL assume_abort_if_not(var_1_4 <= 127) VAL [\old(cond)=1, isInitial=1, var_1_10=2477/25, var_1_11=317/5, var_1_12=257/8, var_1_13=-8, var_1_14=-2, var_1_1=128, var_1_4=117, var_1_5=64, var_1_6=8, var_1_7=0, var_1_8=10, var_1_9=48/5] [L20] COND FALSE !(!cond) [L64] RET assume_abort_if_not(var_1_4 <= 127) VAL [isInitial=1, var_1_10=2477/25, var_1_11=317/5, var_1_12=257/8, var_1_13=-8, var_1_14=-2, var_1_1=128, var_1_4=117, var_1_5=64, var_1_6=8, var_1_7=0, var_1_8=10, var_1_9=48/5] [L65] var_1_5 = __VERIFIER_nondet_uchar() [L66] CALL assume_abort_if_not(var_1_5 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=2477/25, var_1_11=317/5, var_1_12=257/8, var_1_13=-8, var_1_14=-2, var_1_1=128, var_1_4=117, var_1_6=8, var_1_7=0, var_1_8=10, var_1_9=48/5] [L20] COND FALSE !(!cond) [L66] RET assume_abort_if_not(var_1_5 >= 0) VAL [isInitial=1, var_1_10=2477/25, var_1_11=317/5, var_1_12=257/8, var_1_13=-8, var_1_14=-2, var_1_1=128, var_1_4=117, var_1_6=8, var_1_7=0, var_1_8=10, var_1_9=48/5] [L67] CALL assume_abort_if_not(var_1_5 <= 127) VAL [\old(cond)=1, isInitial=1, var_1_10=2477/25, var_1_11=317/5, var_1_12=257/8, var_1_13=-8, var_1_14=-2, var_1_1=128, var_1_4=117, var_1_5=117, var_1_6=8, var_1_7=0, var_1_8=10, var_1_9=48/5] [L20] COND FALSE !(!cond) [L67] RET assume_abort_if_not(var_1_5 <= 127) VAL [isInitial=1, var_1_10=2477/25, var_1_11=317/5, var_1_12=257/8, var_1_13=-8, var_1_14=-2, var_1_1=128, var_1_4=117, var_1_5=117, var_1_6=8, var_1_7=0, var_1_8=10, var_1_9=48/5] [L68] var_1_6 = __VERIFIER_nondet_uchar() [L69] CALL assume_abort_if_not(var_1_6 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=2477/25, var_1_11=317/5, var_1_12=257/8, var_1_13=-8, var_1_14=-2, var_1_1=128, var_1_4=117, var_1_5=117, var_1_7=0, var_1_8=10, var_1_9=48/5] [L20] COND FALSE !(!cond) [L69] RET assume_abort_if_not(var_1_6 >= 0) VAL [isInitial=1, var_1_10=2477/25, var_1_11=317/5, var_1_12=257/8, var_1_13=-8, var_1_14=-2, var_1_1=128, var_1_4=117, var_1_5=117, var_1_7=0, var_1_8=10, var_1_9=48/5] [L70] CALL assume_abort_if_not(var_1_6 <= 127) VAL [\old(cond)=1, isInitial=1, var_1_10=2477/25, var_1_11=317/5, var_1_12=257/8, var_1_13=-8, var_1_14=-2, var_1_1=128, var_1_4=117, var_1_5=117, var_1_6=127, var_1_7=0, var_1_8=10, var_1_9=48/5] [L20] COND FALSE !(!cond) [L70] RET assume_abort_if_not(var_1_6 <= 127) VAL [isInitial=1, var_1_10=2477/25, var_1_11=317/5, var_1_12=257/8, var_1_13=-8, var_1_14=-2, var_1_1=128, var_1_4=117, var_1_5=117, var_1_6=127, var_1_7=0, var_1_8=10, var_1_9=48/5] [L71] var_1_7 = __VERIFIER_nondet_uchar() [L72] CALL assume_abort_if_not(var_1_7 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=2477/25, var_1_11=317/5, var_1_12=257/8, var_1_13=-8, var_1_14=-2, var_1_1=128, var_1_4=117, var_1_5=117, var_1_6=127, var_1_8=10, var_1_9=48/5] [L20] COND FALSE !(!cond) [L72] RET assume_abort_if_not(var_1_7 >= 0) VAL [isInitial=1, var_1_10=2477/25, var_1_11=317/5, var_1_12=257/8, var_1_13=-8, var_1_14=-2, var_1_1=128, var_1_4=117, var_1_5=117, var_1_6=127, var_1_8=10, var_1_9=48/5] [L73] CALL assume_abort_if_not(var_1_7 <= 127) VAL [\old(cond)=1, isInitial=1, var_1_10=2477/25, var_1_11=317/5, var_1_12=257/8, var_1_13=-8, var_1_14=-2, var_1_1=128, var_1_4=117, var_1_5=117, var_1_6=127, var_1_7=118, var_1_8=10, var_1_9=48/5] [L20] COND FALSE !(!cond) [L73] RET assume_abort_if_not(var_1_7 <= 127) VAL [isInitial=1, var_1_10=2477/25, var_1_11=317/5, var_1_12=257/8, var_1_13=-8, var_1_14=-2, var_1_1=128, var_1_4=117, var_1_5=117, var_1_6=127, var_1_7=118, var_1_8=10, var_1_9=48/5] [L74] var_1_10 = __VERIFIER_nondet_float() [L75] 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=317/5, var_1_12=257/8, var_1_13=-8, var_1_14=-2, var_1_1=128, var_1_4=117, var_1_5=117, var_1_6=127, var_1_7=118, var_1_8=10, var_1_9=48/5] [L20] COND FALSE !(!cond) [L75] 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=317/5, var_1_12=257/8, var_1_13=-8, var_1_14=-2, var_1_1=128, var_1_4=117, var_1_5=117, var_1_6=127, var_1_7=118, var_1_8=10, var_1_9=48/5] [L76] var_1_11 = __VERIFIER_nondet_float() [L77] CALL assume_abort_if_not((var_1_11 >= -922337.2036854776000e+13F && var_1_11 <= -1.0e-20F) || (var_1_11 <= 9223372.036854776000e+12F && var_1_11 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_12=257/8, var_1_13=-8, var_1_14=-2, var_1_1=128, var_1_4=117, var_1_5=117, var_1_6=127, var_1_7=118, var_1_8=10, var_1_9=48/5] [L20] COND FALSE !(!cond) [L77] RET assume_abort_if_not((var_1_11 >= -922337.2036854776000e+13F && var_1_11 <= -1.0e-20F) || (var_1_11 <= 9223372.036854776000e+12F && var_1_11 >= 1.0e-20F )) VAL [isInitial=1, var_1_12=257/8, var_1_13=-8, var_1_14=-2, var_1_1=128, var_1_4=117, var_1_5=117, var_1_6=127, var_1_7=118, var_1_8=10, var_1_9=48/5] [L78] var_1_12 = __VERIFIER_nondet_float() [L79] CALL assume_abort_if_not((var_1_12 >= -922337.2036854765600e+13F && var_1_12 <= -1.0e-20F) || (var_1_12 <= 9223372.036854765600e+12F && var_1_12 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_13=-8, var_1_14=-2, var_1_1=128, var_1_4=117, var_1_5=117, var_1_6=127, var_1_7=118, var_1_8=10, var_1_9=48/5] [L20] COND FALSE !(!cond) [L79] RET assume_abort_if_not((var_1_12 >= -922337.2036854765600e+13F && var_1_12 <= -1.0e-20F) || (var_1_12 <= 9223372.036854765600e+12F && var_1_12 >= 1.0e-20F )) VAL [isInitial=1, var_1_13=-8, var_1_14=-2, var_1_1=128, var_1_4=117, var_1_5=117, var_1_6=127, var_1_7=118, var_1_8=10, var_1_9=48/5] [L93] RET updateVariables() [L94] CALL step() [L37] unsigned char stepLocal_1 = var_1_4; [L38] COND FALSE !(var_1_5 > stepLocal_1) [L41] var_1_13 = var_1_7 [L42] var_1_14 = var_1_7 [L43] signed short int stepLocal_0 = var_1_14; [L44] COND FALSE !(var_1_14 != stepLocal_0) [L47] var_1_1 = ((((((((var_1_4) < (var_1_6)) ? (var_1_4) : (var_1_6)))) < (var_1_7)) ? (((((var_1_4) < (var_1_6)) ? (var_1_4) : (var_1_6)))) : (var_1_7))) [L49] signed long int stepLocal_3 = var_1_13; [L50] unsigned char stepLocal_2 = var_1_1; [L51] COND FALSE !((var_1_10 * var_1_11) > 16.75f) [L94] RET step() [L95] CALL, EXPR property() [L84-L85] return (((((var_1_14 != var_1_14) ? (var_1_1 == ((unsigned char) (var_1_4 + ((((((((var_1_5) < (var_1_6)) ? (var_1_5) : (var_1_6)))) > (var_1_7)) ? (((((var_1_5) < (var_1_6)) ? (var_1_5) : (var_1_6)))) : (var_1_7)))))) : (var_1_1 == ((unsigned char) ((((((((var_1_4) < (var_1_6)) ? (var_1_4) : (var_1_6)))) < (var_1_7)) ? (((((var_1_4) < (var_1_6)) ? (var_1_4) : (var_1_6)))) : (var_1_7)))))) && ((var_1_5 > var_1_4) ? (var_1_8 == ((unsigned char) (128 - ((((10) > (var_1_5)) ? (10) : (var_1_5)))))) : 1)) && (((var_1_10 * var_1_11) > 16.75f) ? ((var_1_7 <= var_1_1) ? ((-8 > var_1_13) ? (var_1_9 == ((float) var_1_12)) : 1) : (var_1_9 == ((float) var_1_12))) : 1)) && (var_1_13 == ((signed long int) var_1_7))) && (var_1_14 == ((signed short int) var_1_7)) ; [L95] RET, EXPR property() [L95] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [isInitial=1, var_1_12=48/5, var_1_13=118, var_1_14=118, var_1_1=117, var_1_4=117, var_1_5=117, var_1_6=127, var_1_7=118, var_1_8=10, var_1_9=48/5] [L19] reach_error() VAL [isInitial=1, var_1_12=48/5, var_1_13=118, var_1_14=118, var_1_1=117, var_1_4=117, var_1_5=117, var_1_6=127, var_1_7=118, var_1_8=10, var_1_9=48/5] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 29 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.4s, OverallIterations: 1, TraceHistogramMax: 11, 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=29occurred 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, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 45 NumberOfCodeBlocks, 45 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 06:17:30,262 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd8b4c85-0c3b-41d6-b281-45b0627e81bb/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-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd8b4c85-0c3b-41d6-b281-45b0627e81bb/bin/utaipan-verify-YMUCfTKeje/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd8b4c85-0c3b-41d6-b281-45b0627e81bb/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_bd8b4c85-0c3b-41d6-b281-45b0627e81bb/bin/utaipan-verify-YMUCfTKeje/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd8b4c85-0c3b-41d6-b281-45b0627e81bb/bin/utaipan-verify-YMUCfTKeje/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-84.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd8b4c85-0c3b-41d6-b281-45b0627e81bb/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_bd8b4c85-0c3b-41d6-b281-45b0627e81bb/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 7e8dd03ff6ba8f306af161cccb833486a1e5ea2d1b42cd2cf566ce58d3c9e67f --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-09 06:17:32,574 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 06:17:32,684 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd8b4c85-0c3b-41d6-b281-45b0627e81bb/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2024-11-09 06:17:32,690 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 06:17:32,692 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 06:17:32,751 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 06:17:32,752 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 06:17:32,753 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 06:17:32,753 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 06:17:32,754 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 06:17:32,754 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-09 06:17:32,756 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-09 06:17:32,756 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-09 06:17:32,756 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-09 06:17:32,757 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-09 06:17:32,757 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-09 06:17:32,758 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 06:17:32,758 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 06:17:32,758 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 06:17:32,759 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 06:17:32,759 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 06:17:32,760 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 06:17:32,760 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 06:17:32,761 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 06:17:32,761 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-09 06:17:32,761 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-09 06:17:32,762 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 06:17:32,762 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-09 06:17:32,762 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 06:17:32,763 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 06:17:32,763 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 06:17:32,764 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 06:17:32,764 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-09 06:17:32,764 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 06:17:32,764 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 06:17:32,765 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 06:17:32,765 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 06:17:32,766 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 06:17:32,766 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 06:17:32,766 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2024-11-09 06:17:32,766 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-09 06:17:32,767 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 06:17:32,767 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-09 06:17:32,768 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_bd8b4c85-0c3b-41d6-b281-45b0627e81bb/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd8b4c85-0c3b-41d6-b281-45b0627e81bb/bin/utaipan-verify-YMUCfTKeje Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7e8dd03ff6ba8f306af161cccb833486a1e5ea2d1b42cd2cf566ce58d3c9e67f [2024-11-09 06:17:33,176 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 06:17:33,207 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 06:17:33,210 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 06:17:33,212 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 06:17:33,212 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 06:17:33,213 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd8b4c85-0c3b-41d6-b281-45b0627e81bb/bin/utaipan-verify-YMUCfTKeje/../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-84.i Unable to find full path for "g++" [2024-11-09 06:17:35,153 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 06:17:35,401 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 06:17:35,402 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd8b4c85-0c3b-41d6-b281-45b0627e81bb/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-84.i [2024-11-09 06:17:35,410 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd8b4c85-0c3b-41d6-b281-45b0627e81bb/bin/utaipan-verify-YMUCfTKeje/data/9845af995/b226c1cdaa694d449f122f4705a4c3b6/FLAGcfcc65bcc [2024-11-09 06:17:35,423 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd8b4c85-0c3b-41d6-b281-45b0627e81bb/bin/utaipan-verify-YMUCfTKeje/data/9845af995/b226c1cdaa694d449f122f4705a4c3b6 [2024-11-09 06:17:35,425 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 06:17:35,426 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 06:17:35,427 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 06:17:35,427 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 06:17:35,431 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 06:17:35,432 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 06:17:35" (1/1) ... [2024-11-09 06:17:35,433 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@21d2eb38 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:17:35, skipping insertion in model container [2024-11-09 06:17:35,433 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 06:17:35" (1/1) ... [2024-11-09 06:17:35,458 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 06:17:35,646 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_bd8b4c85-0c3b-41d6-b281-45b0627e81bb/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-84.i[915,928] [2024-11-09 06:17:35,719 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 06:17:35,741 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 06:17:35,755 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_bd8b4c85-0c3b-41d6-b281-45b0627e81bb/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-84.i[915,928] [2024-11-09 06:17:35,793 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 06:17:35,815 INFO L204 MainTranslator]: Completed translation [2024-11-09 06:17:35,816 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:17:35 WrapperNode [2024-11-09 06:17:35,816 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 06:17:35,818 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 06:17:35,818 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 06:17:35,818 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 06:17:35,826 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:17:35" (1/1) ... [2024-11-09 06:17:35,844 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:17:35" (1/1) ... [2024-11-09 06:17:35,883 INFO L138 Inliner]: procedures = 27, calls = 24, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 98 [2024-11-09 06:17:35,884 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 06:17:35,885 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 06:17:35,889 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 06:17:35,889 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 06:17:35,898 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:17:35" (1/1) ... [2024-11-09 06:17:35,899 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:17:35" (1/1) ... [2024-11-09 06:17:35,901 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:17:35" (1/1) ... [2024-11-09 06:17:35,902 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:17:35" (1/1) ... [2024-11-09 06:17:35,910 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:17:35" (1/1) ... [2024-11-09 06:17:35,913 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:17:35" (1/1) ... [2024-11-09 06:17:35,918 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:17:35" (1/1) ... [2024-11-09 06:17:35,922 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:17:35" (1/1) ... [2024-11-09 06:17:35,929 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 06:17:35,930 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 06:17:35,930 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 06:17:35,930 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 06:17:35,931 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:17:35" (1/1) ... [2024-11-09 06:17:35,938 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 06:17:35,952 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd8b4c85-0c3b-41d6-b281-45b0627e81bb/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 06:17:35,966 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd8b4c85-0c3b-41d6-b281-45b0627e81bb/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-09 06:17:35,970 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd8b4c85-0c3b-41d6-b281-45b0627e81bb/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-09 06:17:36,004 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 06:17:36,005 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-11-09 06:17:36,005 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-09 06:17:36,005 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-09 06:17:36,005 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 06:17:36,006 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 06:17:36,185 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 06:17:36,187 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 06:17:37,015 INFO L? ?]: Removed 18 outVars from TransFormulas that were not future-live. [2024-11-09 06:17:37,015 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 06:17:37,027 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 06:17:37,027 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-09 06:17:37,028 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 06:17:37 BoogieIcfgContainer [2024-11-09 06:17:37,028 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 06:17:37,030 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 06:17:37,030 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 06:17:37,033 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 06:17:37,034 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 06:17:35" (1/3) ... [2024-11-09 06:17:37,034 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@18ff6673 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 06:17:37, skipping insertion in model container [2024-11-09 06:17:37,035 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:17:35" (2/3) ... [2024-11-09 06:17:37,035 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@18ff6673 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 06:17:37, skipping insertion in model container [2024-11-09 06:17:37,035 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 06:17:37" (3/3) ... [2024-11-09 06:17:37,037 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_loopvsstraightlinecode_25-1loop_file-84.i [2024-11-09 06:17:37,054 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 06:17:37,055 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-09 06:17:37,117 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 06:17:37,123 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;@3833f345, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 06:17:37,123 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-09 06:17:37,128 INFO L276 IsEmpty]: Start isEmpty. Operand has 45 states, 31 states have (on average 1.3225806451612903) internal successors, (41), 32 states have internal predecessors, (41), 11 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2024-11-09 06:17:37,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2024-11-09 06:17:37,142 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:17:37,143 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:17:37,143 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 06:17:37,150 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:17:37,152 INFO L85 PathProgramCache]: Analyzing trace with hash -1167100469, now seen corresponding path program 1 times [2024-11-09 06:17:37,165 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 06:17:37,165 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1147442281] [2024-11-09 06:17:37,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:17:37,166 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 06:17:37,166 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd8b4c85-0c3b-41d6-b281-45b0627e81bb/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 06:17:37,177 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd8b4c85-0c3b-41d6-b281-45b0627e81bb/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 06:17:37,179 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd8b4c85-0c3b-41d6-b281-45b0627e81bb/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 06:17:37,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:17:37,472 INFO L255 TraceCheckSpWp]: Trace formula consists of 131 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-09 06:17:37,484 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:17:37,539 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 120 proven. 0 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2024-11-09 06:17:37,539 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 06:17:37,539 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 06:17:37,540 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1147442281] [2024-11-09 06:17:37,540 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1147442281] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:17:37,540 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:17:37,541 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 06:17:37,542 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [784013991] [2024-11-09 06:17:37,543 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:17:37,547 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-09 06:17:37,548 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 06:17:37,577 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-09 06:17:37,579 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-09 06:17:37,582 INFO L87 Difference]: Start difference. First operand has 45 states, 31 states have (on average 1.3225806451612903) internal successors, (41), 32 states have internal predecessors, (41), 11 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) Second operand has 2 states, 2 states have (on average 14.5) internal successors, (29), 2 states have internal predecessors, (29), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-09 06:17:37,614 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:17:37,615 INFO L93 Difference]: Finished difference Result 87 states and 134 transitions. [2024-11-09 06:17:37,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-09 06:17:37,619 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 14.5) internal successors, (29), 2 states have internal predecessors, (29), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 77 [2024-11-09 06:17:37,619 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:17:37,629 INFO L225 Difference]: With dead ends: 87 [2024-11-09 06:17:37,629 INFO L226 Difference]: Without dead ends: 41 [2024-11-09 06:17:37,633 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 76 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 06:17:37,639 INFO L432 NwaCegarLoop]: 61 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, 61 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 06:17:37,640 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 06:17:37,657 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2024-11-09 06:17:37,679 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41. [2024-11-09 06:17:37,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41 states, 28 states have (on average 1.2142857142857142) internal successors, (34), 28 states have internal predecessors, (34), 11 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2024-11-09 06:17:37,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 56 transitions. [2024-11-09 06:17:37,688 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 56 transitions. Word has length 77 [2024-11-09 06:17:37,688 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:17:37,690 INFO L471 AbstractCegarLoop]: Abstraction has 41 states and 56 transitions. [2024-11-09 06:17:37,691 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 14.5) internal successors, (29), 2 states have internal predecessors, (29), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-09 06:17:37,691 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 56 transitions. [2024-11-09 06:17:37,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2024-11-09 06:17:37,695 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:17:37,696 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:17:37,706 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd8b4c85-0c3b-41d6-b281-45b0627e81bb/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 06:17:37,899 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd8b4c85-0c3b-41d6-b281-45b0627e81bb/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 06:17:37,899 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 06:17:37,900 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:17:37,900 INFO L85 PathProgramCache]: Analyzing trace with hash 1525567569, now seen corresponding path program 1 times [2024-11-09 06:17:37,901 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 06:17:37,901 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1879110963] [2024-11-09 06:17:37,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:17:37,902 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 06:17:37,902 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd8b4c85-0c3b-41d6-b281-45b0627e81bb/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 06:17:37,907 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd8b4c85-0c3b-41d6-b281-45b0627e81bb/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 06:17:37,909 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd8b4c85-0c3b-41d6-b281-45b0627e81bb/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 06:17:38,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:17:38,135 INFO L255 TraceCheckSpWp]: Trace formula consists of 131 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-09 06:17:38,140 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:17:38,194 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-09 06:17:38,194 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 06:17:38,195 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 06:17:38,195 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1879110963] [2024-11-09 06:17:38,195 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1879110963] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:17:38,195 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:17:38,196 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 06:17:38,196 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1231642850] [2024-11-09 06:17:38,196 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:17:38,198 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 06:17:38,198 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 06:17:38,199 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 06:17:38,199 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 06:17:38,200 INFO L87 Difference]: Start difference. First operand 41 states and 56 transitions. Second operand has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-09 06:17:38,416 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:17:38,417 INFO L93 Difference]: Finished difference Result 79 states and 109 transitions. [2024-11-09 06:17:38,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 06:17:38,422 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 77 [2024-11-09 06:17:38,423 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:17:38,424 INFO L225 Difference]: With dead ends: 79 [2024-11-09 06:17:38,424 INFO L226 Difference]: Without dead ends: 41 [2024-11-09 06:17:38,424 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 75 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 06:17:38,426 INFO L432 NwaCegarLoop]: 54 mSDtfsCounter, 0 mSDsluCounter, 50 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 104 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-09 06:17:38,426 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 104 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-09 06:17:38,427 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2024-11-09 06:17:38,432 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41. [2024-11-09 06:17:38,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41 states, 28 states have (on average 1.1785714285714286) internal successors, (33), 28 states have internal predecessors, (33), 11 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2024-11-09 06:17:38,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 55 transitions. [2024-11-09 06:17:38,434 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 55 transitions. Word has length 77 [2024-11-09 06:17:38,436 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:17:38,436 INFO L471 AbstractCegarLoop]: Abstraction has 41 states and 55 transitions. [2024-11-09 06:17:38,436 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-09 06:17:38,437 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 55 transitions. [2024-11-09 06:17:38,441 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2024-11-09 06:17:38,442 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:17:38,442 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:17:38,449 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd8b4c85-0c3b-41d6-b281-45b0627e81bb/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)] Ended with exit code 0 [2024-11-09 06:17:38,642 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd8b4c85-0c3b-41d6-b281-45b0627e81bb/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 06:17:38,643 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 06:17:38,644 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:17:38,644 INFO L85 PathProgramCache]: Analyzing trace with hash -994392365, now seen corresponding path program 1 times [2024-11-09 06:17:38,644 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 06:17:38,644 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [452113236] [2024-11-09 06:17:38,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:17:38,645 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 06:17:38,645 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd8b4c85-0c3b-41d6-b281-45b0627e81bb/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 06:17:38,648 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd8b4c85-0c3b-41d6-b281-45b0627e81bb/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 06:17:38,650 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd8b4c85-0c3b-41d6-b281-45b0627e81bb/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 (4)] Waiting until timeout for monitored process [2024-11-09 06:17:38,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:17:38,894 INFO L255 TraceCheckSpWp]: Trace formula consists of 131 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-09 06:17:38,901 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:19:16,630 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-09 06:19:16,631 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 06:19:16,631 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 06:19:16,631 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [452113236] [2024-11-09 06:19:16,632 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [452113236] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:19:16,632 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:19:16,632 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-09 06:19:16,632 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1832936488] [2024-11-09 06:19:16,632 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:19:16,633 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-09 06:19:16,633 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 06:19:16,634 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-09 06:19:16,634 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-11-09 06:19:16,634 INFO L87 Difference]: Start difference. First operand 41 states and 55 transitions. Second operand has 8 states, 8 states have (on average 3.125) internal successors, (25), 8 states have internal predecessors, (25), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-09 06:19:24,882 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:19:24,882 INFO L93 Difference]: Finished difference Result 72 states and 90 transitions. [2024-11-09 06:19:24,883 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-09 06:19:24,883 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 3.125) internal successors, (25), 8 states have internal predecessors, (25), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 77 [2024-11-09 06:19:24,884 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:19:24,885 INFO L225 Difference]: With dead ends: 72 [2024-11-09 06:19:24,885 INFO L226 Difference]: Without dead ends: 70 [2024-11-09 06:19:24,885 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 70 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 7.5s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2024-11-09 06:19:24,886 INFO L432 NwaCegarLoop]: 61 mSDtfsCounter, 71 mSDsluCounter, 182 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 243 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2024-11-09 06:19:24,887 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [71 Valid, 243 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time] [2024-11-09 06:19:24,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2024-11-09 06:19:24,897 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 63. [2024-11-09 06:19:24,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63 states, 47 states have (on average 1.1914893617021276) internal successors, (56), 48 states have internal predecessors, (56), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 12 states have call predecessors, (13), 13 states have call successors, (13) [2024-11-09 06:19:24,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 82 transitions. [2024-11-09 06:19:24,900 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 82 transitions. Word has length 77 [2024-11-09 06:19:24,901 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:19:24,901 INFO L471 AbstractCegarLoop]: Abstraction has 63 states and 82 transitions. [2024-11-09 06:19:24,901 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 3.125) internal successors, (25), 8 states have internal predecessors, (25), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-09 06:19:24,901 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 82 transitions. [2024-11-09 06:19:24,903 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2024-11-09 06:19:24,903 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:19:24,903 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:19:24,914 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd8b4c85-0c3b-41d6-b281-45b0627e81bb/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 (4)] Forceful destruction successful, exit code 0 [2024-11-09 06:19:25,103 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd8b4c85-0c3b-41d6-b281-45b0627e81bb/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 06:19:25,104 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 06:19:25,104 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:19:25,105 INFO L85 PathProgramCache]: Analyzing trace with hash -314333995, now seen corresponding path program 1 times [2024-11-09 06:19:25,105 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 06:19:25,105 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [892000657] [2024-11-09 06:19:25,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:19:25,106 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 06:19:25,106 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd8b4c85-0c3b-41d6-b281-45b0627e81bb/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 06:19:25,109 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd8b4c85-0c3b-41d6-b281-45b0627e81bb/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 06:19:25,110 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd8b4c85-0c3b-41d6-b281-45b0627e81bb/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)] Waiting until timeout for monitored process [2024-11-09 06:19:25,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:19:25,301 INFO L255 TraceCheckSpWp]: Trace formula consists of 130 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-11-09 06:19:25,305 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:20:12,383 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 89 proven. 45 refuted. 0 times theorem prover too weak. 86 trivial. 0 not checked. [2024-11-09 06:20:12,383 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 06:21:55,091 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-09 06:21:55,091 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 06:21:55,091 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [892000657] [2024-11-09 06:21:55,092 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [892000657] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-09 06:21:55,092 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 06:21:55,092 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [15] total 22 [2024-11-09 06:21:55,092 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [808923816] [2024-11-09 06:21:55,093 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:21:55,093 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-09 06:21:55,093 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 06:21:55,094 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-09 06:21:55,094 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=89, Invalid=373, Unknown=0, NotChecked=0, Total=462 [2024-11-09 06:21:55,095 INFO L87 Difference]: Start difference. First operand 63 states and 82 transitions. Second operand has 9 states, 9 states have (on average 2.7777777777777777) internal successors, (25), 9 states have internal predecessors, (25), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-09 06:22:03,977 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:22:03,978 INFO L93 Difference]: Finished difference Result 77 states and 95 transitions. [2024-11-09 06:22:03,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-09 06:22:03,983 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 2.7777777777777777) internal successors, (25), 9 states have internal predecessors, (25), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 77 [2024-11-09 06:22:03,984 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:22:03,985 INFO L225 Difference]: With dead ends: 77 [2024-11-09 06:22:03,986 INFO L226 Difference]: Without dead ends: 75 [2024-11-09 06:22:03,986 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 154 GetRequests, 132 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 122 ImplicationChecksByTransitivity, 18.2s TimeCoverageRelationStatistics Valid=105, Invalid=447, Unknown=0, NotChecked=0, Total=552 [2024-11-09 06:22:03,987 INFO L432 NwaCegarLoop]: 64 mSDtfsCounter, 38 mSDsluCounter, 172 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 236 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2024-11-09 06:22:03,988 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 236 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2024-11-09 06:22:03,989 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2024-11-09 06:22:03,998 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 66. [2024-11-09 06:22:03,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66 states, 50 states have (on average 1.18) internal successors, (59), 51 states have internal predecessors, (59), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 12 states have call predecessors, (13), 13 states have call successors, (13) [2024-11-09 06:22:04,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 85 transitions. [2024-11-09 06:22:04,001 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 85 transitions. Word has length 77 [2024-11-09 06:22:04,001 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:22:04,002 INFO L471 AbstractCegarLoop]: Abstraction has 66 states and 85 transitions. [2024-11-09 06:22:04,002 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 2.7777777777777777) internal successors, (25), 9 states have internal predecessors, (25), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-09 06:22:04,002 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 85 transitions. [2024-11-09 06:22:04,005 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2024-11-09 06:22:04,005 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:22:04,006 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:22:04,012 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd8b4c85-0c3b-41d6-b281-45b0627e81bb/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)] Forceful destruction successful, exit code 0 [2024-11-09 06:22:04,206 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd8b4c85-0c3b-41d6-b281-45b0627e81bb/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 06:22:04,206 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 06:22:04,207 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:22:04,207 INFO L85 PathProgramCache]: Analyzing trace with hash -1166880415, now seen corresponding path program 1 times [2024-11-09 06:22:04,207 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 06:22:04,207 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1513378665] [2024-11-09 06:22:04,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:22:04,208 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 06:22:04,208 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd8b4c85-0c3b-41d6-b281-45b0627e81bb/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 06:22:04,209 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd8b4c85-0c3b-41d6-b281-45b0627e81bb/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 06:22:04,210 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd8b4c85-0c3b-41d6-b281-45b0627e81bb/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 06:22:04,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:22:04,466 INFO L255 TraceCheckSpWp]: Trace formula consists of 133 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-09 06:22:04,469 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:25:26,239 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2024-11-09 06:25:26,239 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 06:25:26,239 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 06:25:26,239 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1513378665] [2024-11-09 06:25:26,239 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1513378665] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:25:26,240 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:25:26,240 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-09 06:25:26,240 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [195727539] [2024-11-09 06:25:26,240 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:25:26,240 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-09 06:25:26,240 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 06:25:26,241 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-09 06:25:26,241 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2024-11-09 06:25:26,242 INFO L87 Difference]: Start difference. First operand 66 states and 85 transitions. Second operand has 12 states, 12 states have (on average 2.4166666666666665) internal successors, (29), 11 states have internal predecessors, (29), 1 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-09 06:25:30,798 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:25:30,799 INFO L93 Difference]: Finished difference Result 86 states and 103 transitions. [2024-11-09 06:25:30,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-09 06:25:30,799 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 2.4166666666666665) internal successors, (29), 11 states have internal predecessors, (29), 1 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 1 states have call successors, (11) Word has length 78 [2024-11-09 06:25:30,800 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:25:30,801 INFO L225 Difference]: With dead ends: 86 [2024-11-09 06:25:30,801 INFO L226 Difference]: Without dead ends: 84 [2024-11-09 06:25:30,801 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 67 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=103, Invalid=277, Unknown=0, NotChecked=0, Total=380 [2024-11-09 06:25:30,803 INFO L432 NwaCegarLoop]: 47 mSDtfsCounter, 76 mSDsluCounter, 206 mSDsCounter, 0 mSdLazyCounter, 298 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 88 SdHoareTripleChecker+Valid, 253 SdHoareTripleChecker+Invalid, 304 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 298 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2024-11-09 06:25:30,803 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [88 Valid, 253 Invalid, 304 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 298 Invalid, 0 Unknown, 0 Unchecked, 3.9s Time] [2024-11-09 06:25:30,804 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2024-11-09 06:25:30,812 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 70. [2024-11-09 06:25:30,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70 states, 53 states have (on average 1.169811320754717) internal successors, (62), 54 states have internal predecessors, (62), 13 states have call successors, (13), 3 states have call predecessors, (13), 3 states have return successors, (13), 12 states have call predecessors, (13), 13 states have call successors, (13) [2024-11-09 06:25:30,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 88 transitions. [2024-11-09 06:25:30,814 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 88 transitions. Word has length 78 [2024-11-09 06:25:30,814 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:25:30,815 INFO L471 AbstractCegarLoop]: Abstraction has 70 states and 88 transitions. [2024-11-09 06:25:30,815 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 2.4166666666666665) internal successors, (29), 11 states have internal predecessors, (29), 1 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-09 06:25:30,815 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 88 transitions. [2024-11-09 06:25:30,816 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2024-11-09 06:25:30,816 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:25:30,817 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:25:30,825 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd8b4c85-0c3b-41d6-b281-45b0627e81bb/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)] Ended with exit code 0 [2024-11-09 06:25:31,017 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd8b4c85-0c3b-41d6-b281-45b0627e81bb/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 06:25:31,017 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 06:25:31,018 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:25:31,018 INFO L85 PathProgramCache]: Analyzing trace with hash -1559907425, now seen corresponding path program 1 times [2024-11-09 06:25:31,018 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 06:25:31,019 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [34069427] [2024-11-09 06:25:31,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:25:31,019 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 06:25:31,019 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd8b4c85-0c3b-41d6-b281-45b0627e81bb/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 06:25:31,020 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd8b4c85-0c3b-41d6-b281-45b0627e81bb/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 06:25:31,022 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd8b4c85-0c3b-41d6-b281-45b0627e81bb/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 06:25:31,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:25:31,253 INFO L255 TraceCheckSpWp]: Trace formula consists of 132 conjuncts, 21 conjuncts are in the unsatisfiable core [2024-11-09 06:25:31,255 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:27:26,834 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 113 proven. 39 refuted. 0 times theorem prover too weak. 68 trivial. 0 not checked. [2024-11-09 06:27:26,834 INFO L311 TraceCheckSpWp]: Computing backward predicates...