./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_codestructure_normal_file-30.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a0165632 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16d710fe-66de-423a-b8d4-7a8494a4a348/bin/utaipan-verify-YMUCfTKeje/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16d710fe-66de-423a-b8d4-7a8494a4a348/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_16d710fe-66de-423a-b8d4-7a8494a4a348/bin/utaipan-verify-YMUCfTKeje/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16d710fe-66de-423a-b8d4-7a8494a4a348/bin/utaipan-verify-YMUCfTKeje/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_codestructure_normal_file-30.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16d710fe-66de-423a-b8d4-7a8494a4a348/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_16d710fe-66de-423a-b8d4-7a8494a4a348/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 552b13618f2386da274168de8e30ff0529ac5ed23541c18f07ea90cf7d0b9e92 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-09 06:56:04,725 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 06:56:04,842 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16d710fe-66de-423a-b8d4-7a8494a4a348/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Reach-32bit-Taipan_Default.epf [2024-11-09 06:56:04,853 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 06:56:04,853 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 06:56:04,899 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 06:56:04,900 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 06:56:04,904 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 06:56:04,905 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 06:56:04,906 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 06:56:04,906 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-09 06:56:04,906 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-09 06:56:04,907 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-09 06:56:04,910 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-09 06:56:04,910 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-09 06:56:04,910 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-09 06:56:04,911 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-09 06:56:04,911 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-09 06:56:04,912 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-09 06:56:04,912 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-09 06:56:04,913 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-09 06:56:04,913 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-09 06:56:04,914 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 06:56:04,914 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 06:56:04,918 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 06:56:04,919 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 06:56:04,919 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 06:56:04,919 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 06:56:04,920 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 06:56:04,920 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 06:56:04,921 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 06:56:04,921 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 06:56:04,921 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 06:56:04,922 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 06:56:04,926 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 06:56:04,926 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 06:56:04,927 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 06:56:04,927 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 06:56:04,927 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 06:56:04,928 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 06:56:04,928 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 06:56:04,931 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 06:56:04,931 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-09 06:56:04,932 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 06:56:04,932 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 06:56:04,932 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-09 06:56:04,933 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 06:56:04,933 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_16d710fe-66de-423a-b8d4-7a8494a4a348/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16d710fe-66de-423a-b8d4-7a8494a4a348/bin/utaipan-verify-YMUCfTKeje Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 552b13618f2386da274168de8e30ff0529ac5ed23541c18f07ea90cf7d0b9e92 [2024-11-09 06:56:05,320 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 06:56:05,359 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 06:56:05,362 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 06:56:05,365 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 06:56:05,366 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 06:56:05,367 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16d710fe-66de-423a-b8d4-7a8494a4a348/bin/utaipan-verify-YMUCfTKeje/../../sv-benchmarks/c/hardness-nfm22/hardness_codestructure_normal_file-30.i Unable to find full path for "g++" [2024-11-09 06:56:07,637 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 06:56:07,911 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 06:56:07,912 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16d710fe-66de-423a-b8d4-7a8494a4a348/sv-benchmarks/c/hardness-nfm22/hardness_codestructure_normal_file-30.i [2024-11-09 06:56:07,924 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16d710fe-66de-423a-b8d4-7a8494a4a348/bin/utaipan-verify-YMUCfTKeje/data/820e1b41f/3de120de8b6e4eaf98276ee44acb9220/FLAG73f44acf1 [2024-11-09 06:56:07,945 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16d710fe-66de-423a-b8d4-7a8494a4a348/bin/utaipan-verify-YMUCfTKeje/data/820e1b41f/3de120de8b6e4eaf98276ee44acb9220 [2024-11-09 06:56:07,954 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 06:56:07,956 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 06:56:07,962 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 06:56:07,962 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 06:56:07,970 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 06:56:07,971 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 06:56:07" (1/1) ... [2024-11-09 06:56:07,972 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7ecbc055 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:56:07, skipping insertion in model container [2024-11-09 06:56:07,973 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 06:56:07" (1/1) ... [2024-11-09 06:56:08,022 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 06:56:08,325 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_16d710fe-66de-423a-b8d4-7a8494a4a348/sv-benchmarks/c/hardness-nfm22/hardness_codestructure_normal_file-30.i[913,926] [2024-11-09 06:56:08,403 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 06:56:08,415 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 06:56:08,431 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_16d710fe-66de-423a-b8d4-7a8494a4a348/sv-benchmarks/c/hardness-nfm22/hardness_codestructure_normal_file-30.i[913,926] [2024-11-09 06:56:08,464 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 06:56:08,488 INFO L204 MainTranslator]: Completed translation [2024-11-09 06:56:08,489 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:56:08 WrapperNode [2024-11-09 06:56:08,489 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 06:56:08,491 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 06:56:08,491 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 06:56:08,491 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 06:56:08,503 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:56:08" (1/1) ... [2024-11-09 06:56:08,513 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:56:08" (1/1) ... [2024-11-09 06:56:08,558 INFO L138 Inliner]: procedures = 26, calls = 31, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 159 [2024-11-09 06:56:08,558 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 06:56:08,559 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 06:56:08,559 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 06:56:08,559 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 06:56:08,570 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:56:08" (1/1) ... [2024-11-09 06:56:08,570 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:56:08" (1/1) ... [2024-11-09 06:56:08,573 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:56:08" (1/1) ... [2024-11-09 06:56:08,574 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:56:08" (1/1) ... [2024-11-09 06:56:08,581 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:56:08" (1/1) ... [2024-11-09 06:56:08,586 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:56:08" (1/1) ... [2024-11-09 06:56:08,589 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:56:08" (1/1) ... [2024-11-09 06:56:08,590 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:56:08" (1/1) ... [2024-11-09 06:56:08,598 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 06:56:08,599 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 06:56:08,599 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 06:56:08,599 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 06:56:08,601 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:56:08" (1/1) ... [2024-11-09 06:56:08,622 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 06:56:08,640 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16d710fe-66de-423a-b8d4-7a8494a4a348/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 06:56:08,657 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16d710fe-66de-423a-b8d4-7a8494a4a348/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-09 06:56:08,663 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16d710fe-66de-423a-b8d4-7a8494a4a348/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-09 06:56:08,704 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 06:56:08,704 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-09 06:56:08,705 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-09 06:56:08,705 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-09 06:56:08,705 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 06:56:08,705 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 06:56:08,804 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 06:56:08,806 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 06:56:09,275 INFO L? ?]: Removed 10 outVars from TransFormulas that were not future-live. [2024-11-09 06:56:09,275 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 06:56:09,611 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 06:56:09,611 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-09 06:56:09,612 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 06:56:09 BoogieIcfgContainer [2024-11-09 06:56:09,612 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 06:56:09,615 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 06:56:09,615 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 06:56:09,619 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 06:56:09,620 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 06:56:07" (1/3) ... [2024-11-09 06:56:09,621 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@108bc2cc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 06:56:09, skipping insertion in model container [2024-11-09 06:56:09,621 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:56:08" (2/3) ... [2024-11-09 06:56:09,622 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@108bc2cc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 06:56:09, skipping insertion in model container [2024-11-09 06:56:09,622 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 06:56:09" (3/3) ... [2024-11-09 06:56:09,624 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_codestructure_normal_file-30.i [2024-11-09 06:56:09,648 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 06:56:09,648 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-09 06:56:09,741 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 06:56:09,749 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;@1eecfdf0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 06:56:09,749 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-09 06:56:09,754 INFO L276 IsEmpty]: Start isEmpty. Operand has 39 states, 18 states have (on average 1.1666666666666667) internal successors, (21), 19 states have internal predecessors, (21), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2024-11-09 06:56:09,765 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2024-11-09 06:56:09,765 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:56:09,766 INFO L215 NwaCegarLoop]: trace histogram [18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:56:09,767 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 06:56:09,772 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:56:09,772 INFO L85 PathProgramCache]: Analyzing trace with hash -417867845, now seen corresponding path program 1 times [2024-11-09 06:56:09,783 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:56:09,783 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [840024554] [2024-11-09 06:56:09,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:56:09,784 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:56:10,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 06:56:10,358 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 06:56:10,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 06:56:10,707 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2024-11-09 06:56:10,709 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-09 06:56:10,715 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-09 06:56:10,718 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-09 06:56:10,757 INFO L407 BasicCegarLoop]: Path program histogram: [1] [2024-11-09 06:56:10,889 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-09 06:56:10,892 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.11 06:56:10 BoogieIcfgContainer [2024-11-09 06:56:10,892 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-09 06:56:10,893 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-09 06:56:10,893 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-09 06:56:10,894 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-09 06:56:10,894 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 06:56:09" (3/4) ... [2024-11-09 06:56:10,899 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-09 06:56:10,900 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-09 06:56:10,902 INFO L158 Benchmark]: Toolchain (without parser) took 2945.20ms. Allocated memory is still 165.7MB. Free memory was 128.6MB in the beginning and 125.3MB in the end (delta: 3.3MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 06:56:10,903 INFO L158 Benchmark]: CDTParser took 0.22ms. Allocated memory is still 115.3MB. Free memory is still 83.8MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 06:56:10,904 INFO L158 Benchmark]: CACSL2BoogieTranslator took 527.97ms. Allocated memory is still 165.7MB. Free memory was 127.9MB in the beginning and 127.3MB in the end (delta: 533.1kB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2024-11-09 06:56:10,905 INFO L158 Benchmark]: Boogie Procedure Inliner took 67.58ms. Allocated memory is still 165.7MB. Free memory was 127.3MB in the beginning and 124.6MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-09 06:56:10,906 INFO L158 Benchmark]: Boogie Preprocessor took 39.03ms. Allocated memory is still 165.7MB. Free memory was 124.6MB in the beginning and 123.1MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-09 06:56:10,907 INFO L158 Benchmark]: RCFGBuilder took 1013.25ms. Allocated memory is still 165.7MB. Free memory was 123.1MB in the beginning and 79.8MB in the end (delta: 43.3MB). Peak memory consumption was 44.0MB. Max. memory is 16.1GB. [2024-11-09 06:56:10,908 INFO L158 Benchmark]: TraceAbstraction took 1278.08ms. Allocated memory is still 165.7MB. Free memory was 79.1MB in the beginning and 126.3MB in the end (delta: -47.2MB). Peak memory consumption was 44.0MB. Max. memory is 16.1GB. [2024-11-09 06:56:10,908 INFO L158 Benchmark]: Witness Printer took 7.08ms. Allocated memory is still 165.7MB. Free memory was 126.3MB in the beginning and 125.3MB in the end (delta: 987.2kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 06:56:10,914 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22ms. Allocated memory is still 115.3MB. Free memory is still 83.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 527.97ms. Allocated memory is still 165.7MB. Free memory was 127.9MB in the beginning and 127.3MB in the end (delta: 533.1kB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 67.58ms. Allocated memory is still 165.7MB. Free memory was 127.3MB in the beginning and 124.6MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 39.03ms. Allocated memory is still 165.7MB. Free memory was 124.6MB in the beginning and 123.1MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1013.25ms. Allocated memory is still 165.7MB. Free memory was 123.1MB in the beginning and 79.8MB in the end (delta: 43.3MB). Peak memory consumption was 44.0MB. Max. memory is 16.1GB. * TraceAbstraction took 1278.08ms. Allocated memory is still 165.7MB. Free memory was 79.1MB in the beginning and 126.3MB in the end (delta: -47.2MB). Peak memory consumption was 44.0MB. Max. memory is 16.1GB. * Witness Printer took 7.08ms. Allocated memory is still 165.7MB. Free memory was 126.3MB in the beginning and 125.3MB in the end (delta: 987.2kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 19]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 55, overapproximation of bitwiseAnd at line 73, overapproximation of someBinaryArithmeticDOUBLEoperation at line 87. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] unsigned char var_1_1 = 1; [L23] signed short int var_1_2 = -256; [L24] signed long int var_1_3 = 256; [L25] unsigned char var_1_4 = 0; [L26] double var_1_5 = 127.5; [L27] unsigned char var_1_6 = 0; [L28] double var_1_7 = 10000000000000.125; [L29] double var_1_8 = 1.25; [L30] double var_1_9 = 4.125; [L31] double var_1_10 = 25.7; [L32] signed long int var_1_11 = -2; [L33] double var_1_12 = 49.75; [L34] signed long int var_1_13 = 5; [L35] signed long int var_1_14 = 128; [L36] signed long int var_1_15 = 1000; [L37] double var_1_16 = 0.2; [L38] double var_1_17 = 0.25; [L39] double var_1_18 = 99999999999999.5; [L131] isInitial = 1 [L132] FCALL initially() [L133] COND TRUE 1 [L134] FCALL updateLastVariables() [L135] CALL updateVariables() [L93] var_1_2 = __VERIFIER_nondet_short() [L94] CALL assume_abort_if_not(var_1_2 >= -32768) VAL [\old(cond)=1, isInitial=1, var_1_10=257/10, var_1_11=-2, var_1_12=199/4, var_1_13=5, var_1_14=128, var_1_15=1000, var_1_16=1/5, var_1_17=1/4, var_1_18=199999999999999/2, var_1_1=1, var_1_2=113, var_1_3=256, var_1_4=0, var_1_5=255/2, var_1_6=0, var_1_7=80000000000001/8, var_1_8=5/4, var_1_9=33/8] [L20] COND FALSE !(!cond) [L94] RET assume_abort_if_not(var_1_2 >= -32768) VAL [isInitial=1, var_1_10=257/10, var_1_11=-2, var_1_12=199/4, var_1_13=5, var_1_14=128, var_1_15=1000, var_1_16=1/5, var_1_17=1/4, var_1_18=199999999999999/2, var_1_1=1, var_1_2=113, var_1_3=256, var_1_4=0, var_1_5=255/2, var_1_6=0, var_1_7=80000000000001/8, var_1_8=5/4, var_1_9=33/8] [L95] CALL assume_abort_if_not(var_1_2 <= 32767) VAL [\old(cond)=1, isInitial=1, var_1_10=257/10, var_1_11=-2, var_1_12=199/4, var_1_13=5, var_1_14=128, var_1_15=1000, var_1_16=1/5, var_1_17=1/4, var_1_18=199999999999999/2, var_1_1=1, var_1_2=113, var_1_3=256, var_1_4=0, var_1_5=255/2, var_1_6=0, var_1_7=80000000000001/8, var_1_8=5/4, var_1_9=33/8] [L20] COND FALSE !(!cond) [L95] RET assume_abort_if_not(var_1_2 <= 32767) VAL [isInitial=1, var_1_10=257/10, var_1_11=-2, var_1_12=199/4, var_1_13=5, var_1_14=128, var_1_15=1000, var_1_16=1/5, var_1_17=1/4, var_1_18=199999999999999/2, var_1_1=1, var_1_2=113, var_1_3=256, var_1_4=0, var_1_5=255/2, var_1_6=0, var_1_7=80000000000001/8, var_1_8=5/4, var_1_9=33/8] [L96] var_1_3 = __VERIFIER_nondet_long() [L97] CALL assume_abort_if_not(var_1_3 >= -2147483648) VAL [\old(cond)=1, isInitial=1, var_1_10=257/10, var_1_11=-2, var_1_12=199/4, var_1_13=5, var_1_14=128, var_1_15=1000, var_1_16=1/5, var_1_17=1/4, var_1_18=199999999999999/2, var_1_1=1, var_1_2=113, var_1_3=7, var_1_4=0, var_1_5=255/2, var_1_6=0, var_1_7=80000000000001/8, var_1_8=5/4, var_1_9=33/8] [L20] COND FALSE !(!cond) [L97] RET assume_abort_if_not(var_1_3 >= -2147483648) VAL [isInitial=1, var_1_10=257/10, var_1_11=-2, var_1_12=199/4, var_1_13=5, var_1_14=128, var_1_15=1000, var_1_16=1/5, var_1_17=1/4, var_1_18=199999999999999/2, var_1_1=1, var_1_2=113, var_1_3=7, var_1_4=0, var_1_5=255/2, var_1_6=0, var_1_7=80000000000001/8, var_1_8=5/4, var_1_9=33/8] [L98] CALL assume_abort_if_not(var_1_3 <= 2147483647) VAL [\old(cond)=1, isInitial=1, var_1_10=257/10, var_1_11=-2, var_1_12=199/4, var_1_13=5, var_1_14=128, var_1_15=1000, var_1_16=1/5, var_1_17=1/4, var_1_18=199999999999999/2, var_1_1=1, var_1_2=113, var_1_3=7, var_1_4=0, var_1_5=255/2, var_1_6=0, var_1_7=80000000000001/8, var_1_8=5/4, var_1_9=33/8] [L20] COND FALSE !(!cond) [L98] RET assume_abort_if_not(var_1_3 <= 2147483647) VAL [isInitial=1, var_1_10=257/10, var_1_11=-2, var_1_12=199/4, var_1_13=5, var_1_14=128, var_1_15=1000, var_1_16=1/5, var_1_17=1/4, var_1_18=199999999999999/2, var_1_1=1, var_1_2=113, var_1_3=7, var_1_4=0, var_1_5=255/2, var_1_6=0, var_1_7=80000000000001/8, var_1_8=5/4, var_1_9=33/8] [L99] var_1_4 = __VERIFIER_nondet_uchar() [L100] CALL assume_abort_if_not(var_1_4 >= 1) VAL [\old(cond)=1, isInitial=1, var_1_10=257/10, var_1_11=-2, var_1_12=199/4, var_1_13=5, var_1_14=128, var_1_15=1000, var_1_16=1/5, var_1_17=1/4, var_1_18=199999999999999/2, var_1_1=1, var_1_2=113, var_1_3=7, var_1_4=257, var_1_5=255/2, var_1_6=0, var_1_7=80000000000001/8, var_1_8=5/4, var_1_9=33/8] [L20] COND FALSE !(!cond) [L100] RET assume_abort_if_not(var_1_4 >= 1) VAL [isInitial=1, var_1_10=257/10, var_1_11=-2, var_1_12=199/4, var_1_13=5, var_1_14=128, var_1_15=1000, var_1_16=1/5, var_1_17=1/4, var_1_18=199999999999999/2, var_1_1=1, var_1_2=113, var_1_3=7, var_1_4=257, var_1_5=255/2, var_1_6=0, var_1_7=80000000000001/8, var_1_8=5/4, var_1_9=33/8] [L101] CALL assume_abort_if_not(var_1_4 <= 1) VAL [\old(cond)=1, isInitial=1, var_1_10=257/10, var_1_11=-2, var_1_12=199/4, var_1_13=5, var_1_14=128, var_1_15=1000, var_1_16=1/5, var_1_17=1/4, var_1_18=199999999999999/2, var_1_1=1, var_1_2=113, var_1_3=7, var_1_4=257, var_1_5=255/2, var_1_6=0, var_1_7=80000000000001/8, var_1_8=5/4, var_1_9=33/8] [L20] COND FALSE !(!cond) [L101] RET assume_abort_if_not(var_1_4 <= 1) VAL [isInitial=1, var_1_10=257/10, var_1_11=-2, var_1_12=199/4, var_1_13=5, var_1_14=128, var_1_15=1000, var_1_16=1/5, var_1_17=1/4, var_1_18=199999999999999/2, var_1_1=1, var_1_2=113, var_1_3=7, var_1_4=257, var_1_5=255/2, var_1_6=0, var_1_7=80000000000001/8, var_1_8=5/4, var_1_9=33/8] [L102] var_1_6 = __VERIFIER_nondet_uchar() [L103] CALL assume_abort_if_not(var_1_6 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=257/10, var_1_11=-2, var_1_12=199/4, var_1_13=5, var_1_14=128, var_1_15=1000, var_1_16=1/5, var_1_17=1/4, var_1_18=199999999999999/2, var_1_1=1, var_1_2=113, var_1_3=7, var_1_4=257, var_1_5=255/2, var_1_7=80000000000001/8, var_1_8=5/4, var_1_9=33/8] [L20] COND FALSE !(!cond) [L103] RET assume_abort_if_not(var_1_6 >= 0) VAL [isInitial=1, var_1_10=257/10, var_1_11=-2, var_1_12=199/4, var_1_13=5, var_1_14=128, var_1_15=1000, var_1_16=1/5, var_1_17=1/4, var_1_18=199999999999999/2, var_1_1=1, var_1_2=113, var_1_3=7, var_1_4=257, var_1_5=255/2, var_1_7=80000000000001/8, var_1_8=5/4, var_1_9=33/8] [L104] CALL assume_abort_if_not(var_1_6 <= 1) VAL [\old(cond)=1, isInitial=1, var_1_10=257/10, var_1_11=-2, var_1_12=199/4, var_1_13=5, var_1_14=128, var_1_15=1000, var_1_16=1/5, var_1_17=1/4, var_1_18=199999999999999/2, var_1_1=1, var_1_2=113, var_1_3=7, var_1_4=257, var_1_5=255/2, var_1_6=1, var_1_7=80000000000001/8, var_1_8=5/4, var_1_9=33/8] [L20] COND FALSE !(!cond) [L104] RET assume_abort_if_not(var_1_6 <= 1) VAL [isInitial=1, var_1_10=257/10, var_1_11=-2, var_1_12=199/4, var_1_13=5, var_1_14=128, var_1_15=1000, var_1_16=1/5, var_1_17=1/4, var_1_18=199999999999999/2, var_1_1=1, var_1_2=113, var_1_3=7, var_1_4=257, var_1_5=255/2, var_1_6=1, var_1_7=80000000000001/8, var_1_8=5/4, var_1_9=33/8] [L105] var_1_7 = __VERIFIER_nondet_double() [L106] CALL assume_abort_if_not((var_1_7 >= -922337.2036854765600e+13F && var_1_7 <= -1.0e-20F) || (var_1_7 <= 9223372.036854765600e+12F && var_1_7 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_10=257/10, var_1_11=-2, var_1_12=199/4, var_1_13=5, var_1_14=128, var_1_15=1000, var_1_16=1/5, var_1_17=1/4, var_1_18=199999999999999/2, var_1_1=1, var_1_2=113, var_1_3=7, var_1_4=257, var_1_5=255/2, var_1_6=1, var_1_8=5/4, var_1_9=33/8] [L20] COND FALSE !(!cond) [L106] RET assume_abort_if_not((var_1_7 >= -922337.2036854765600e+13F && var_1_7 <= -1.0e-20F) || (var_1_7 <= 9223372.036854765600e+12F && var_1_7 >= 1.0e-20F )) VAL [isInitial=1, var_1_10=257/10, var_1_11=-2, var_1_12=199/4, var_1_13=5, var_1_14=128, var_1_15=1000, var_1_16=1/5, var_1_17=1/4, var_1_18=199999999999999/2, var_1_1=1, var_1_2=113, var_1_3=7, var_1_4=257, var_1_5=255/2, var_1_6=1, var_1_8=5/4, var_1_9=33/8] [L107] var_1_9 = __VERIFIER_nondet_double() [L108] CALL assume_abort_if_not((var_1_9 >= -922337.2036854776000e+13F && var_1_9 <= -1.0e-20F) || (var_1_9 <= 9223372.036854776000e+12F && var_1_9 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_10=257/10, var_1_11=-2, var_1_12=199/4, var_1_13=5, var_1_14=128, var_1_15=1000, var_1_16=1/5, var_1_17=1/4, var_1_18=199999999999999/2, var_1_1=1, var_1_2=113, var_1_3=7, var_1_4=257, var_1_5=255/2, var_1_6=1, var_1_8=5/4] [L20] COND FALSE !(!cond) [L108] RET assume_abort_if_not((var_1_9 >= -922337.2036854776000e+13F && var_1_9 <= -1.0e-20F) || (var_1_9 <= 9223372.036854776000e+12F && var_1_9 >= 1.0e-20F )) VAL [isInitial=1, var_1_10=257/10, var_1_11=-2, var_1_12=199/4, var_1_13=5, var_1_14=128, var_1_15=1000, var_1_16=1/5, var_1_17=1/4, var_1_18=199999999999999/2, var_1_1=1, var_1_2=113, var_1_3=7, var_1_4=257, var_1_5=255/2, var_1_6=1, var_1_8=5/4] [L109] var_1_10 = __VERIFIER_nondet_double() [L110] CALL assume_abort_if_not((var_1_10 >= -922337.2036854765600e+13F && var_1_10 <= -1.0e-20F) || (var_1_10 <= 9223372.036854765600e+12F && var_1_10 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_11=-2, var_1_12=199/4, var_1_13=5, var_1_14=128, var_1_15=1000, var_1_16=1/5, var_1_17=1/4, var_1_18=199999999999999/2, var_1_1=1, var_1_2=113, var_1_3=7, var_1_4=257, var_1_5=255/2, var_1_6=1, var_1_8=5/4] [L20] COND FALSE !(!cond) [L110] RET assume_abort_if_not((var_1_10 >= -922337.2036854765600e+13F && var_1_10 <= -1.0e-20F) || (var_1_10 <= 9223372.036854765600e+12F && var_1_10 >= 1.0e-20F )) VAL [isInitial=1, var_1_11=-2, var_1_12=199/4, var_1_13=5, var_1_14=128, var_1_15=1000, var_1_16=1/5, var_1_17=1/4, var_1_18=199999999999999/2, var_1_1=1, var_1_2=113, var_1_3=7, var_1_4=257, var_1_5=255/2, var_1_6=1, var_1_8=5/4] [L111] var_1_12 = __VERIFIER_nondet_double() [L112] CALL assume_abort_if_not((var_1_12 >= -922337.2036854776000e+13F && var_1_12 <= -1.0e-20F) || (var_1_12 <= 9223372.036854776000e+12F && var_1_12 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_11=-2, var_1_13=5, var_1_14=128, var_1_15=1000, var_1_16=1/5, var_1_17=1/4, var_1_18=199999999999999/2, var_1_1=1, var_1_2=113, var_1_3=7, var_1_4=257, var_1_5=255/2, var_1_6=1, var_1_8=5/4] [L20] COND FALSE !(!cond) [L112] RET assume_abort_if_not((var_1_12 >= -922337.2036854776000e+13F && var_1_12 <= -1.0e-20F) || (var_1_12 <= 9223372.036854776000e+12F && var_1_12 >= 1.0e-20F )) VAL [isInitial=1, var_1_11=-2, var_1_13=5, var_1_14=128, var_1_15=1000, var_1_16=1/5, var_1_17=1/4, var_1_18=199999999999999/2, var_1_1=1, var_1_2=113, var_1_3=7, var_1_4=257, var_1_5=255/2, var_1_6=1, var_1_8=5/4] [L113] var_1_13 = __VERIFIER_nondet_long() [L114] CALL assume_abort_if_not(var_1_13 >= -1) VAL [\old(cond)=1, isInitial=1, var_1_11=-2, var_1_13=118, var_1_14=128, var_1_15=1000, var_1_16=1/5, var_1_17=1/4, var_1_18=199999999999999/2, var_1_1=1, var_1_2=113, var_1_3=7, var_1_4=257, var_1_5=255/2, var_1_6=1, var_1_8=5/4] [L20] COND FALSE !(!cond) [L114] RET assume_abort_if_not(var_1_13 >= -1) VAL [isInitial=1, var_1_11=-2, var_1_13=118, var_1_14=128, var_1_15=1000, var_1_16=1/5, var_1_17=1/4, var_1_18=199999999999999/2, var_1_1=1, var_1_2=113, var_1_3=7, var_1_4=257, var_1_5=255/2, var_1_6=1, var_1_8=5/4] [L115] CALL assume_abort_if_not(var_1_13 <= 2147483646) VAL [\old(cond)=1, isInitial=1, var_1_11=-2, var_1_13=118, var_1_14=128, var_1_15=1000, var_1_16=1/5, var_1_17=1/4, var_1_18=199999999999999/2, var_1_1=1, var_1_2=113, var_1_3=7, var_1_4=257, var_1_5=255/2, var_1_6=1, var_1_8=5/4] [L20] COND FALSE !(!cond) [L115] RET assume_abort_if_not(var_1_13 <= 2147483646) VAL [isInitial=1, var_1_11=-2, var_1_13=118, var_1_14=128, var_1_15=1000, var_1_16=1/5, var_1_17=1/4, var_1_18=199999999999999/2, var_1_1=1, var_1_2=113, var_1_3=7, var_1_4=257, var_1_5=255/2, var_1_6=1, var_1_8=5/4] [L116] var_1_14 = __VERIFIER_nondet_long() [L117] CALL assume_abort_if_not(var_1_14 >= -2147483647) VAL [\old(cond)=1, isInitial=1, var_1_11=-2, var_1_13=118, var_1_14=113, var_1_15=1000, var_1_16=1/5, var_1_17=1/4, var_1_18=199999999999999/2, var_1_1=1, var_1_2=113, var_1_3=7, var_1_4=257, var_1_5=255/2, var_1_6=1, var_1_8=5/4] [L20] COND FALSE !(!cond) [L117] RET assume_abort_if_not(var_1_14 >= -2147483647) VAL [isInitial=1, var_1_11=-2, var_1_13=118, var_1_14=113, var_1_15=1000, var_1_16=1/5, var_1_17=1/4, var_1_18=199999999999999/2, var_1_1=1, var_1_2=113, var_1_3=7, var_1_4=257, var_1_5=255/2, var_1_6=1, var_1_8=5/4] [L118] CALL assume_abort_if_not(var_1_14 <= 2147483646) VAL [\old(cond)=1, isInitial=1, var_1_11=-2, var_1_13=118, var_1_14=113, var_1_15=1000, var_1_16=1/5, var_1_17=1/4, var_1_18=199999999999999/2, var_1_1=1, var_1_2=113, var_1_3=7, var_1_4=257, var_1_5=255/2, var_1_6=1, var_1_8=5/4] [L20] COND FALSE !(!cond) [L118] RET assume_abort_if_not(var_1_14 <= 2147483646) VAL [isInitial=1, var_1_11=-2, var_1_13=118, var_1_14=113, var_1_15=1000, var_1_16=1/5, var_1_17=1/4, var_1_18=199999999999999/2, var_1_1=1, var_1_2=113, var_1_3=7, var_1_4=257, var_1_5=255/2, var_1_6=1, var_1_8=5/4] [L119] var_1_17 = __VERIFIER_nondet_double() [L120] CALL assume_abort_if_not((var_1_17 >= -461168.6018427382800e+13F && var_1_17 <= -1.0e-20F) || (var_1_17 <= 4611686.018427382800e+12F && var_1_17 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_11=-2, var_1_13=118, var_1_14=113, var_1_15=1000, var_1_16=1/5, var_1_18=199999999999999/2, var_1_1=1, var_1_2=113, var_1_3=7, var_1_4=257, var_1_5=255/2, var_1_6=1, var_1_8=5/4] [L20] COND FALSE !(!cond) [L120] RET assume_abort_if_not((var_1_17 >= -461168.6018427382800e+13F && var_1_17 <= -1.0e-20F) || (var_1_17 <= 4611686.018427382800e+12F && var_1_17 >= 1.0e-20F )) VAL [isInitial=1, var_1_11=-2, var_1_13=118, var_1_14=113, var_1_15=1000, var_1_16=1/5, var_1_18=199999999999999/2, var_1_1=1, var_1_2=113, var_1_3=7, var_1_4=257, var_1_5=255/2, var_1_6=1, var_1_8=5/4] [L121] var_1_18 = __VERIFIER_nondet_double() [L122] CALL assume_abort_if_not((var_1_18 >= -230584.3009213691390e+13F && var_1_18 <= -1.0e-20F) || (var_1_18 <= 2305843.009213691390e+12F && var_1_18 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_11=-2, var_1_13=118, var_1_14=113, var_1_15=1000, var_1_16=1/5, var_1_1=1, var_1_2=113, var_1_3=7, var_1_4=257, var_1_5=255/2, var_1_6=1, var_1_8=5/4] [L20] COND FALSE !(!cond) [L122] RET assume_abort_if_not((var_1_18 >= -230584.3009213691390e+13F && var_1_18 <= -1.0e-20F) || (var_1_18 <= 2305843.009213691390e+12F && var_1_18 >= 1.0e-20F )) VAL [isInitial=1, var_1_11=-2, var_1_13=118, var_1_14=113, var_1_15=1000, var_1_16=1/5, var_1_1=1, var_1_2=113, var_1_3=7, var_1_4=257, var_1_5=255/2, var_1_6=1, var_1_8=5/4] [L135] RET updateVariables() [L136] CALL step() [L43] COND TRUE (var_1_2 / ((((-16) < 0 ) ? -(-16) : (-16)))) >= var_1_3 [L44] var_1_1 = var_1_4 [L46] COND TRUE \read(var_1_1) [L47] COND TRUE var_1_2 >= var_1_3 [L48] COND TRUE var_1_6 || (var_1_2 < var_1_3) [L49] var_1_5 = var_1_7 [L55] COND TRUE 10.55f < var_1_5 [L56] COND TRUE var_1_5 > (var_1_7 * var_1_9) [L57] var_1_8 = ((((var_1_7) > (var_1_10)) ? (var_1_7) : (var_1_10))) [L66] COND TRUE \read(var_1_1) [L67] COND TRUE ((((var_1_9) > (49.75)) ? (var_1_9) : (49.75))) > var_1_12 [L68] var_1_11 = ((((var_1_2) < ((((((var_1_13 - 5)) > (var_1_14)) ? ((var_1_13 - 5)) : (var_1_14))))) ? (var_1_2) : ((((((var_1_13 - 5)) > (var_1_14)) ? ((var_1_13 - 5)) : (var_1_14)))))) [L73] EXPR var_1_3 & var_1_13 [L73] COND FALSE !((- var_1_2) > (var_1_3 & var_1_13)) [L84] var_1_15 = var_1_13 [L86] COND TRUE ((((var_1_12) < (var_1_5)) ? (var_1_12) : (var_1_5))) >= var_1_7 [L87] var_1_16 = (var_1_17 + (var_1_18 + 16.75)) [L136] RET step() [L137] CALL, EXPR property() [L127] EXPR ((((((var_1_2 / ((((-16) < 0 ) ? -(-16) : (-16)))) >= var_1_3) ? (var_1_1 == ((unsigned char) var_1_4)) : 1) && (var_1_1 ? ((var_1_2 >= var_1_3) ? ((var_1_6 || (var_1_2 < var_1_3)) ? (var_1_5 == ((double) var_1_7)) : 1) : (var_1_5 == ((double) var_1_7))) : 1)) && ((10.55f < var_1_5) ? ((var_1_5 > (var_1_7 * var_1_9)) ? (var_1_8 == ((double) ((((var_1_7) > (var_1_10)) ? (var_1_7) : (var_1_10))))) : 1) : ((var_1_5 > var_1_7) ? (var_1_8 == ((double) var_1_10)) : (var_1_8 == ((double) var_1_7))))) && (var_1_1 ? ((((((var_1_9) > (49.75)) ? (var_1_9) : (49.75))) > var_1_12) ? (var_1_11 == ((signed long int) ((((var_1_2) < ((((((var_1_13 - 5)) > (var_1_14)) ? ((var_1_13 - 5)) : (var_1_14))))) ? (var_1_2) : ((((((var_1_13 - 5)) > (var_1_14)) ? ((var_1_13 - 5)) : (var_1_14)))))))) : 1) : (var_1_11 == ((signed long int) var_1_2)))) && (((- var_1_2) > (var_1_3 & var_1_13)) ? ((var_1_2 <= 128) ? (var_1_1 ? (var_1_15 == ((signed long int) var_1_14)) : (var_1_15 == ((signed long int) var_1_14))) : (var_1_15 == ((signed long int) var_1_14))) : (var_1_15 == ((signed long int) var_1_13))) [L127-L128] return (((((((var_1_2 / ((((-16) < 0 ) ? -(-16) : (-16)))) >= var_1_3) ? (var_1_1 == ((unsigned char) var_1_4)) : 1) && (var_1_1 ? ((var_1_2 >= var_1_3) ? ((var_1_6 || (var_1_2 < var_1_3)) ? (var_1_5 == ((double) var_1_7)) : 1) : (var_1_5 == ((double) var_1_7))) : 1)) && ((10.55f < var_1_5) ? ((var_1_5 > (var_1_7 * var_1_9)) ? (var_1_8 == ((double) ((((var_1_7) > (var_1_10)) ? (var_1_7) : (var_1_10))))) : 1) : ((var_1_5 > var_1_7) ? (var_1_8 == ((double) var_1_10)) : (var_1_8 == ((double) var_1_7))))) && (var_1_1 ? ((((((var_1_9) > (49.75)) ? (var_1_9) : (49.75))) > var_1_12) ? (var_1_11 == ((signed long int) ((((var_1_2) < ((((((var_1_13 - 5)) > (var_1_14)) ? ((var_1_13 - 5)) : (var_1_14))))) ? (var_1_2) : ((((((var_1_13 - 5)) > (var_1_14)) ? ((var_1_13 - 5)) : (var_1_14)))))))) : 1) : (var_1_11 == ((signed long int) var_1_2)))) && (((- var_1_2) > (var_1_3 & var_1_13)) ? ((var_1_2 <= 128) ? (var_1_1 ? (var_1_15 == ((signed long int) var_1_14)) : (var_1_15 == ((signed long int) var_1_14))) : (var_1_15 == ((signed long int) var_1_14))) : (var_1_15 == ((signed long int) var_1_13)))) && ((((((var_1_12) < (var_1_5)) ? (var_1_12) : (var_1_5))) >= var_1_7) ? (var_1_16 == ((double) (var_1_17 + (var_1_18 + 16.75)))) : (var_1_16 == ((double) var_1_17))) ; [L137] RET, EXPR property() [L137] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [isInitial=1, var_1_10=255/2, var_1_11=113, var_1_13=118, var_1_14=113, var_1_15=118, var_1_16=100000000000005, var_1_17=100000000000005, var_1_1=257, var_1_2=113, var_1_3=7, var_1_4=257, var_1_5=255/2, var_1_6=1, var_1_7=255/2, var_1_8=255/2] [L19] reach_error() VAL [isInitial=1, var_1_10=255/2, var_1_11=113, var_1_13=118, var_1_14=113, var_1_15=118, var_1_16=100000000000005, var_1_17=100000000000005, var_1_1=257, var_1_2=113, var_1_3=7, var_1_4=257, var_1_5=255/2, var_1_6=1, var_1_7=255/2, var_1_8=255/2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 39 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.0s, OverallIterations: 1, TraceHistogramMax: 18, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=39occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 70 NumberOfCodeBlocks, 70 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 06:56:10,972 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16d710fe-66de-423a-b8d4-7a8494a4a348/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16d710fe-66de-423a-b8d4-7a8494a4a348/bin/utaipan-verify-YMUCfTKeje/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16d710fe-66de-423a-b8d4-7a8494a4a348/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_16d710fe-66de-423a-b8d4-7a8494a4a348/bin/utaipan-verify-YMUCfTKeje/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16d710fe-66de-423a-b8d4-7a8494a4a348/bin/utaipan-verify-YMUCfTKeje/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_codestructure_normal_file-30.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16d710fe-66de-423a-b8d4-7a8494a4a348/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_16d710fe-66de-423a-b8d4-7a8494a4a348/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 552b13618f2386da274168de8e30ff0529ac5ed23541c18f07ea90cf7d0b9e92 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-09 06:56:13,896 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 06:56:13,997 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16d710fe-66de-423a-b8d4-7a8494a4a348/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2024-11-09 06:56:14,006 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 06:56:14,007 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 06:56:14,057 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 06:56:14,057 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 06:56:14,058 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 06:56:14,061 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 06:56:14,062 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 06:56:14,062 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-09 06:56:14,063 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-09 06:56:14,063 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-09 06:56:14,064 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-09 06:56:14,064 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-09 06:56:14,066 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-09 06:56:14,070 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 06:56:14,071 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 06:56:14,071 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 06:56:14,071 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 06:56:14,071 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 06:56:14,072 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 06:56:14,076 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 06:56:14,076 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 06:56:14,077 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-09 06:56:14,077 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-09 06:56:14,077 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 06:56:14,078 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-09 06:56:14,078 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 06:56:14,078 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 06:56:14,078 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 06:56:14,079 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 06:56:14,079 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-09 06:56:14,081 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 06:56:14,082 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 06:56:14,083 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 06:56:14,083 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 06:56:14,084 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 06:56:14,084 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 06:56:14,084 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2024-11-09 06:56:14,085 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-09 06:56:14,086 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 06:56:14,094 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-09 06:56:14,094 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_16d710fe-66de-423a-b8d4-7a8494a4a348/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16d710fe-66de-423a-b8d4-7a8494a4a348/bin/utaipan-verify-YMUCfTKeje Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 552b13618f2386da274168de8e30ff0529ac5ed23541c18f07ea90cf7d0b9e92 [2024-11-09 06:56:14,569 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 06:56:14,606 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 06:56:14,610 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 06:56:14,612 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 06:56:14,612 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 06:56:14,614 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16d710fe-66de-423a-b8d4-7a8494a4a348/bin/utaipan-verify-YMUCfTKeje/../../sv-benchmarks/c/hardness-nfm22/hardness_codestructure_normal_file-30.i Unable to find full path for "g++" [2024-11-09 06:56:16,961 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 06:56:17,286 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 06:56:17,287 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16d710fe-66de-423a-b8d4-7a8494a4a348/sv-benchmarks/c/hardness-nfm22/hardness_codestructure_normal_file-30.i [2024-11-09 06:56:17,300 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16d710fe-66de-423a-b8d4-7a8494a4a348/bin/utaipan-verify-YMUCfTKeje/data/3bee96ace/9c3422481418460d812738e8f9488b97/FLAG8d68c6778 [2024-11-09 06:56:17,322 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16d710fe-66de-423a-b8d4-7a8494a4a348/bin/utaipan-verify-YMUCfTKeje/data/3bee96ace/9c3422481418460d812738e8f9488b97 [2024-11-09 06:56:17,325 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 06:56:17,327 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 06:56:17,328 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 06:56:17,328 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 06:56:17,334 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 06:56:17,335 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 06:56:17" (1/1) ... [2024-11-09 06:56:17,337 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@15cfda7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:56:17, skipping insertion in model container [2024-11-09 06:56:17,337 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 06:56:17" (1/1) ... [2024-11-09 06:56:17,376 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 06:56:17,660 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_16d710fe-66de-423a-b8d4-7a8494a4a348/sv-benchmarks/c/hardness-nfm22/hardness_codestructure_normal_file-30.i[913,926] [2024-11-09 06:56:17,809 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 06:56:17,873 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 06:56:17,896 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_16d710fe-66de-423a-b8d4-7a8494a4a348/sv-benchmarks/c/hardness-nfm22/hardness_codestructure_normal_file-30.i[913,926] [2024-11-09 06:56:17,959 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 06:56:17,989 INFO L204 MainTranslator]: Completed translation [2024-11-09 06:56:17,990 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:56:17 WrapperNode [2024-11-09 06:56:17,990 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 06:56:17,992 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 06:56:17,993 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 06:56:17,994 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 06:56:18,003 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:56:17" (1/1) ... [2024-11-09 06:56:18,024 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:56:17" (1/1) ... [2024-11-09 06:56:18,080 INFO L138 Inliner]: procedures = 27, calls = 31, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 132 [2024-11-09 06:56:18,084 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 06:56:18,085 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 06:56:18,086 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 06:56:18,086 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 06:56:18,102 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:56:17" (1/1) ... [2024-11-09 06:56:18,103 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:56:17" (1/1) ... [2024-11-09 06:56:18,108 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:56:17" (1/1) ... [2024-11-09 06:56:18,112 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:56:17" (1/1) ... [2024-11-09 06:56:18,134 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:56:17" (1/1) ... [2024-11-09 06:56:18,143 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:56:17" (1/1) ... [2024-11-09 06:56:18,146 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:56:17" (1/1) ... [2024-11-09 06:56:18,148 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:56:17" (1/1) ... [2024-11-09 06:56:18,152 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 06:56:18,154 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 06:56:18,154 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 06:56:18,154 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 06:56:18,155 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:56:17" (1/1) ... [2024-11-09 06:56:18,167 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 06:56:18,194 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16d710fe-66de-423a-b8d4-7a8494a4a348/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 06:56:18,214 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16d710fe-66de-423a-b8d4-7a8494a4a348/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-09 06:56:18,221 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16d710fe-66de-423a-b8d4-7a8494a4a348/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-09 06:56:18,258 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 06:56:18,259 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-11-09 06:56:18,259 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-09 06:56:18,259 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-09 06:56:18,259 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 06:56:18,260 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 06:56:18,388 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 06:56:18,392 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 06:56:24,239 INFO L? ?]: Removed 8 outVars from TransFormulas that were not future-live. [2024-11-09 06:56:24,239 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 06:56:24,256 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 06:56:24,257 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-09 06:56:24,257 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 06:56:24 BoogieIcfgContainer [2024-11-09 06:56:24,258 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 06:56:24,273 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 06:56:24,273 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 06:56:24,277 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 06:56:24,278 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 06:56:17" (1/3) ... [2024-11-09 06:56:24,279 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@11352eb1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 06:56:24, skipping insertion in model container [2024-11-09 06:56:24,280 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:56:17" (2/3) ... [2024-11-09 06:56:24,280 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@11352eb1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 06:56:24, skipping insertion in model container [2024-11-09 06:56:24,283 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 06:56:24" (3/3) ... [2024-11-09 06:56:24,285 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_codestructure_normal_file-30.i [2024-11-09 06:56:24,306 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 06:56:24,307 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-09 06:56:24,382 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 06:56:24,390 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;@3fddbe52, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 06:56:24,390 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-09 06:56:24,395 INFO L276 IsEmpty]: Start isEmpty. Operand has 62 states, 41 states have (on average 1.4390243902439024) internal successors, (59), 42 states have internal predecessors, (59), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2024-11-09 06:56:24,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2024-11-09 06:56:24,410 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:56:24,411 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:56:24,412 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 06:56:24,419 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:56:24,419 INFO L85 PathProgramCache]: Analyzing trace with hash -838200643, now seen corresponding path program 1 times [2024-11-09 06:56:24,437 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 06:56:24,438 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1706164126] [2024-11-09 06:56:24,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:56:24,439 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 06:56:24,439 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16d710fe-66de-423a-b8d4-7a8494a4a348/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 06:56:24,447 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16d710fe-66de-423a-b8d4-7a8494a4a348/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 06:56:24,449 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16d710fe-66de-423a-b8d4-7a8494a4a348/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 06:56:25,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:56:25,119 INFO L255 TraceCheckSpWp]: Trace formula consists of 192 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-09 06:56:25,129 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:56:25,184 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 242 proven. 0 refuted. 0 times theorem prover too weak. 370 trivial. 0 not checked. [2024-11-09 06:56:25,187 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 06:56:25,188 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 06:56:25,192 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1706164126] [2024-11-09 06:56:25,193 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1706164126] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:56:25,193 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:56:25,193 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 06:56:25,196 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1879601581] [2024-11-09 06:56:25,197 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:56:25,202 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-09 06:56:25,203 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 06:56:25,237 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-09 06:56:25,238 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-09 06:56:25,241 INFO L87 Difference]: Start difference. First operand has 62 states, 41 states have (on average 1.4390243902439024) internal successors, (59), 42 states have internal predecessors, (59), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) Second operand has 2 states, 2 states have (on average 17.5) internal successors, (35), 2 states have internal predecessors, (35), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-09 06:56:25,302 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:56:25,303 INFO L93 Difference]: Finished difference Result 117 states and 202 transitions. [2024-11-09 06:56:25,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-09 06:56:25,306 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 17.5) internal successors, (35), 2 states have internal predecessors, (35), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 118 [2024-11-09 06:56:25,306 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:56:25,316 INFO L225 Difference]: With dead ends: 117 [2024-11-09 06:56:25,317 INFO L226 Difference]: Without dead ends: 58 [2024-11-09 06:56:25,321 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 117 GetRequests, 117 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 06:56:25,325 INFO L432 NwaCegarLoop]: 88 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, 88 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 06:56:25,327 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 88 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 06:56:25,349 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2024-11-09 06:56:25,390 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 58. [2024-11-09 06:56:25,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58 states, 38 states have (on average 1.368421052631579) internal successors, (52), 38 states have internal predecessors, (52), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2024-11-09 06:56:25,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 88 transitions. [2024-11-09 06:56:25,402 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 88 transitions. Word has length 118 [2024-11-09 06:56:25,403 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:56:25,403 INFO L471 AbstractCegarLoop]: Abstraction has 58 states and 88 transitions. [2024-11-09 06:56:25,404 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 17.5) internal successors, (35), 2 states have internal predecessors, (35), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-09 06:56:25,404 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 88 transitions. [2024-11-09 06:56:25,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2024-11-09 06:56:25,413 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:56:25,413 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:56:25,425 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16d710fe-66de-423a-b8d4-7a8494a4a348/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)] Forceful destruction successful, exit code 0 [2024-11-09 06:56:25,614 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16d710fe-66de-423a-b8d4-7a8494a4a348/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 06:56:25,615 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 06:56:25,615 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:56:25,616 INFO L85 PathProgramCache]: Analyzing trace with hash -2051075767, now seen corresponding path program 1 times [2024-11-09 06:56:25,616 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 06:56:25,617 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [222415906] [2024-11-09 06:56:25,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:56:25,617 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 06:56:25,618 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16d710fe-66de-423a-b8d4-7a8494a4a348/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 06:56:25,621 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16d710fe-66de-423a-b8d4-7a8494a4a348/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 06:56:25,622 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16d710fe-66de-423a-b8d4-7a8494a4a348/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 06:56:26,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:56:26,221 INFO L255 TraceCheckSpWp]: Trace formula consists of 192 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-09 06:56:26,229 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:56:28,408 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 248 proven. 72 refuted. 0 times theorem prover too weak. 292 trivial. 0 not checked. [2024-11-09 06:56:28,408 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 06:56:29,583 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 12 proven. 39 refuted. 0 times theorem prover too weak. 561 trivial. 0 not checked. [2024-11-09 06:56:29,583 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 06:56:29,584 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [222415906] [2024-11-09 06:56:29,584 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [222415906] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 06:56:29,584 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1870623702] [2024-11-09 06:56:29,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:56:29,585 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-09 06:56:29,585 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16d710fe-66de-423a-b8d4-7a8494a4a348/bin/utaipan-verify-YMUCfTKeje/cvc4 [2024-11-09 06:56:29,589 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16d710fe-66de-423a-b8d4-7a8494a4a348/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-09 06:56:29,593 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16d710fe-66de-423a-b8d4-7a8494a4a348/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2024-11-09 06:56:30,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:56:30,992 INFO L255 TraceCheckSpWp]: Trace formula consists of 192 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-09 06:56:31,001 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:56:33,655 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-09 06:56:33,656 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 06:56:33,656 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1870623702] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:56:33,656 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-09 06:56:33,656 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [9, 6] total 13 [2024-11-09 06:56:33,658 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [559437679] [2024-11-09 06:56:33,658 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:56:33,659 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 06:56:33,659 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 06:56:33,660 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 06:56:33,661 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=115, Unknown=0, NotChecked=0, Total=156 [2024-11-09 06:56:33,661 INFO L87 Difference]: Start difference. First operand 58 states and 88 transitions. Second operand has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 2 states have internal predecessors, (31), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-09 06:56:35,923 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-09 06:56:37,995 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-09 06:56:40,445 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-09 06:56:43,518 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-09 06:56:44,714 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.19s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-09 06:56:47,052 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-09 06:56:47,219 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:56:47,220 INFO L93 Difference]: Finished difference Result 167 states and 256 transitions. [2024-11-09 06:56:47,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 06:56:47,223 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 2 states have internal predecessors, (31), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 118 [2024-11-09 06:56:47,223 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:56:47,226 INFO L225 Difference]: With dead ends: 167 [2024-11-09 06:56:47,226 INFO L226 Difference]: Without dead ends: 112 [2024-11-09 06:56:47,227 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 351 GetRequests, 339 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=41, Invalid=115, Unknown=0, NotChecked=0, Total=156 [2024-11-09 06:56:47,229 INFO L432 NwaCegarLoop]: 77 mSDtfsCounter, 25 mSDsluCounter, 66 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 0 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 143 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.5s IncrementalHoareTripleChecker+Time [2024-11-09 06:56:47,230 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 143 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 28 Invalid, 5 Unknown, 0 Unchecked, 13.5s Time] [2024-11-09 06:56:47,231 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112 states. [2024-11-09 06:56:47,251 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112 to 110. [2024-11-09 06:56:47,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 110 states, 71 states have (on average 1.3661971830985915) internal successors, (97), 71 states have internal predecessors, (97), 36 states have call successors, (36), 2 states have call predecessors, (36), 2 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2024-11-09 06:56:47,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 169 transitions. [2024-11-09 06:56:47,255 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 169 transitions. Word has length 118 [2024-11-09 06:56:47,256 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:56:47,256 INFO L471 AbstractCegarLoop]: Abstraction has 110 states and 169 transitions. [2024-11-09 06:56:47,256 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 2 states have internal predecessors, (31), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-09 06:56:47,257 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 169 transitions. [2024-11-09 06:56:47,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2024-11-09 06:56:47,259 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:56:47,259 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:56:47,274 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16d710fe-66de-423a-b8d4-7a8494a4a348/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 06:56:47,471 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16d710fe-66de-423a-b8d4-7a8494a4a348/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (4)] Forceful destruction successful, exit code 0 [2024-11-09 06:56:47,663 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16d710fe-66de-423a-b8d4-7a8494a4a348/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 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16d710fe-66de-423a-b8d4-7a8494a4a348/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt [2024-11-09 06:56:47,664 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 06:56:47,664 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:56:47,664 INFO L85 PathProgramCache]: Analyzing trace with hash -1533922743, now seen corresponding path program 1 times [2024-11-09 06:56:47,665 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 06:56:47,665 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1005972807] [2024-11-09 06:56:47,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:56:47,665 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 06:56:47,665 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16d710fe-66de-423a-b8d4-7a8494a4a348/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 06:56:47,668 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16d710fe-66de-423a-b8d4-7a8494a4a348/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 06:56:47,671 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16d710fe-66de-423a-b8d4-7a8494a4a348/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 06:56:48,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:56:48,281 INFO L255 TraceCheckSpWp]: Trace formula consists of 192 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-09 06:56:48,285 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:56:50,255 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 248 proven. 72 refuted. 0 times theorem prover too weak. 292 trivial. 0 not checked. [2024-11-09 06:56:50,255 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 06:56:51,207 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 12 proven. 39 refuted. 0 times theorem prover too weak. 561 trivial. 0 not checked. [2024-11-09 06:56:51,208 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 06:56:51,208 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1005972807] [2024-11-09 06:56:51,208 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1005972807] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 06:56:51,209 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [663256038] [2024-11-09 06:56:51,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:56:51,209 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-09 06:56:51,210 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16d710fe-66de-423a-b8d4-7a8494a4a348/bin/utaipan-verify-YMUCfTKeje/cvc4 [2024-11-09 06:56:51,213 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16d710fe-66de-423a-b8d4-7a8494a4a348/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-09 06:56:51,214 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16d710fe-66de-423a-b8d4-7a8494a4a348/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (6)] Waiting until timeout for monitored process [2024-11-09 06:56:52,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:56:52,571 INFO L255 TraceCheckSpWp]: Trace formula consists of 192 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-09 06:56:52,575 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:56:53,344 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 233 proven. 39 refuted. 0 times theorem prover too weak. 340 trivial. 0 not checked. [2024-11-09 06:56:53,344 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 06:56:54,067 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 12 proven. 39 refuted. 0 times theorem prover too weak. 561 trivial. 0 not checked. [2024-11-09 06:56:54,067 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [663256038] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 06:56:54,067 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [986941249] [2024-11-09 06:56:54,067 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:56:54,067 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:56:54,068 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16d710fe-66de-423a-b8d4-7a8494a4a348/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 06:56:54,071 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16d710fe-66de-423a-b8d4-7a8494a4a348/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 06:56:54,072 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16d710fe-66de-423a-b8d4-7a8494a4a348/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-09 06:56:54,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:56:54,442 INFO L255 TraceCheckSpWp]: Trace formula consists of 192 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-09 06:56:54,445 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:56:55,161 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 233 proven. 39 refuted. 0 times theorem prover too weak. 340 trivial. 0 not checked. [2024-11-09 06:56:55,161 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 06:56:55,837 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 12 proven. 39 refuted. 0 times theorem prover too weak. 561 trivial. 0 not checked. [2024-11-09 06:56:55,837 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [986941249] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 06:56:55,837 INFO L185 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2024-11-09 06:56:55,837 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 6, 6, 6, 6, 6] total 12 [2024-11-09 06:56:55,838 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1506795691] [2024-11-09 06:56:55,838 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2024-11-09 06:56:55,840 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-09 06:56:55,840 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 06:56:55,841 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-09 06:56:55,842 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2024-11-09 06:56:55,842 INFO L87 Difference]: Start difference. First operand 110 states and 169 transitions. Second operand has 12 states, 12 states have (on average 5.416666666666667) internal successors, (65), 12 states have internal predecessors, (65), 3 states have call successors, (43), 3 states have call predecessors, (43), 6 states have return successors, (45), 3 states have call predecessors, (45), 3 states have call successors, (45) [2024-11-09 06:56:59,727 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.13s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-09 06:57:01,733 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-09 06:57:03,741 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-09 06:57:05,745 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-09 06:57:07,750 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-09 06:57:07,963 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:57:07,963 INFO L93 Difference]: Finished difference Result 247 states and 365 transitions. [2024-11-09 06:57:07,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-09 06:57:07,964 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 5.416666666666667) internal successors, (65), 12 states have internal predecessors, (65), 3 states have call successors, (43), 3 states have call predecessors, (43), 6 states have return successors, (45), 3 states have call predecessors, (45), 3 states have call successors, (45) Word has length 118 [2024-11-09 06:57:07,965 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:57:07,968 INFO L225 Difference]: With dead ends: 247 [2024-11-09 06:57:07,968 INFO L226 Difference]: Without dead ends: 140 [2024-11-09 06:57:07,969 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 714 GetRequests, 689 SyntacticMatches, 5 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 97 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=149, Invalid=313, Unknown=0, NotChecked=0, Total=462 [2024-11-09 06:57:07,971 INFO L432 NwaCegarLoop]: 71 mSDtfsCounter, 197 mSDsluCounter, 145 mSDsCounter, 0 mSdLazyCounter, 185 mSolverCounterSat, 90 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 202 SdHoareTripleChecker+Valid, 216 SdHoareTripleChecker+Invalid, 280 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 90 IncrementalHoareTripleChecker+Valid, 185 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.5s IncrementalHoareTripleChecker+Time [2024-11-09 06:57:07,971 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [202 Valid, 216 Invalid, 280 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [90 Valid, 185 Invalid, 5 Unknown, 0 Unchecked, 11.5s Time] [2024-11-09 06:57:07,973 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states. [2024-11-09 06:57:07,993 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 133. [2024-11-09 06:57:07,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 133 states, 86 states have (on average 1.2325581395348837) internal successors, (106), 87 states have internal predecessors, (106), 40 states have call successors, (40), 6 states have call predecessors, (40), 6 states have return successors, (40), 39 states have call predecessors, (40), 40 states have call successors, (40) [2024-11-09 06:57:07,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 133 states and 186 transitions. [2024-11-09 06:57:07,998 INFO L78 Accepts]: Start accepts. Automaton has 133 states and 186 transitions. Word has length 118 [2024-11-09 06:57:07,998 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:57:07,999 INFO L471 AbstractCegarLoop]: Abstraction has 133 states and 186 transitions. [2024-11-09 06:57:07,999 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 5.416666666666667) internal successors, (65), 12 states have internal predecessors, (65), 3 states have call successors, (43), 3 states have call predecessors, (43), 6 states have return successors, (45), 3 states have call predecessors, (45), 3 states have call successors, (45) [2024-11-09 06:57:07,999 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 186 transitions. [2024-11-09 06:57:08,002 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2024-11-09 06:57:08,002 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:57:08,002 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:57:08,050 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16d710fe-66de-423a-b8d4-7a8494a4a348/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-09 06:57:08,214 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16d710fe-66de-423a-b8d4-7a8494a4a348/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 06:57:08,413 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16d710fe-66de-423a-b8d4-7a8494a4a348/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (6)] Forceful destruction successful, exit code 0 [2024-11-09 06:57:08,603 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16d710fe-66de-423a-b8d4-7a8494a4a348/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16d710fe-66de-423a-b8d4-7a8494a4a348/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 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16d710fe-66de-423a-b8d4-7a8494a4a348/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt [2024-11-09 06:57:08,604 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 06:57:08,605 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:57:08,605 INFO L85 PathProgramCache]: Analyzing trace with hash -983330816, now seen corresponding path program 1 times [2024-11-09 06:57:08,605 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 06:57:08,606 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1780324793] [2024-11-09 06:57:08,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:57:08,606 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 06:57:08,606 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16d710fe-66de-423a-b8d4-7a8494a4a348/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 06:57:08,608 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16d710fe-66de-423a-b8d4-7a8494a4a348/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 06:57:08,610 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16d710fe-66de-423a-b8d4-7a8494a4a348/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2024-11-09 06:57:09,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:57:09,142 INFO L255 TraceCheckSpWp]: Trace formula consists of 195 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-09 06:57:09,144 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:57:09,205 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-09 06:57:09,206 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 06:57:09,206 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 06:57:09,206 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1780324793] [2024-11-09 06:57:09,206 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1780324793] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:57:09,206 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:57:09,206 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 06:57:09,207 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1469789608] [2024-11-09 06:57:09,207 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:57:09,207 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 06:57:09,208 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 06:57:09,211 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 06:57:09,211 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 06:57:09,211 INFO L87 Difference]: Start difference. First operand 133 states and 186 transitions. Second operand has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-09 06:57:11,404 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-09 06:57:13,480 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-09 06:57:15,567 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-09 06:57:17,079 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.51s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-09 06:57:18,888 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.81s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-09 06:57:21,013 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-09 06:57:22,120 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.11s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-09 06:57:24,244 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-09 06:57:24,383 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:57:24,383 INFO L93 Difference]: Finished difference Result 237 states and 327 transitions. [2024-11-09 06:57:24,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 06:57:24,386 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 120 [2024-11-09 06:57:24,386 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:57:24,390 INFO L225 Difference]: With dead ends: 237 [2024-11-09 06:57:24,391 INFO L226 Difference]: Without dead ends: 174 [2024-11-09 06:57:24,392 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 119 GetRequests, 118 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 06:57:24,393 INFO L432 NwaCegarLoop]: 105 mSDtfsCounter, 44 mSDsluCounter, 71 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 1 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 176 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.1s IncrementalHoareTripleChecker+Time [2024-11-09 06:57:24,394 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [44 Valid, 176 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 16 Invalid, 5 Unknown, 0 Unchecked, 15.1s Time] [2024-11-09 06:57:24,395 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 174 states. [2024-11-09 06:57:24,422 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 174 to 171. [2024-11-09 06:57:24,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 171 states, 113 states have (on average 1.238938053097345) internal successors, (140), 115 states have internal predecessors, (140), 48 states have call successors, (48), 9 states have call predecessors, (48), 9 states have return successors, (48), 46 states have call predecessors, (48), 48 states have call successors, (48) [2024-11-09 06:57:24,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 171 states to 171 states and 236 transitions. [2024-11-09 06:57:24,426 INFO L78 Accepts]: Start accepts. Automaton has 171 states and 236 transitions. Word has length 120 [2024-11-09 06:57:24,427 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:57:24,427 INFO L471 AbstractCegarLoop]: Abstraction has 171 states and 236 transitions. [2024-11-09 06:57:24,427 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-09 06:57:24,428 INFO L276 IsEmpty]: Start isEmpty. Operand 171 states and 236 transitions. [2024-11-09 06:57:24,430 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2024-11-09 06:57:24,430 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:57:24,430 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:57:24,446 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16d710fe-66de-423a-b8d4-7a8494a4a348/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2024-11-09 06:57:24,631 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16d710fe-66de-423a-b8d4-7a8494a4a348/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 06:57:24,631 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 06:57:24,632 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:57:24,632 INFO L85 PathProgramCache]: Analyzing trace with hash -303272446, now seen corresponding path program 1 times [2024-11-09 06:57:24,632 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 06:57:24,632 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1951042551] [2024-11-09 06:57:24,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:57:24,633 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 06:57:24,633 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16d710fe-66de-423a-b8d4-7a8494a4a348/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 06:57:24,634 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16d710fe-66de-423a-b8d4-7a8494a4a348/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 06:57:24,635 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16d710fe-66de-423a-b8d4-7a8494a4a348/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2024-11-09 06:57:25,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:57:25,213 INFO L255 TraceCheckSpWp]: Trace formula consists of 195 conjuncts, 28 conjuncts are in the unsatisfiable core [2024-11-09 06:57:25,218 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:58:49,774 WARN L286 SmtUtils]: Spent 24.50s on a formula simplification that was a NOOP. DAG size: 98 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)