./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-92.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a0165632 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f679860f-b6c9-454e-b532-9a2cd6ccc6ad/bin/uautomizer-verify-jihMAELWvX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f679860f-b6c9-454e-b532-9a2cd6ccc6ad/bin/uautomizer-verify-jihMAELWvX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f679860f-b6c9-454e-b532-9a2cd6ccc6ad/bin/uautomizer-verify-jihMAELWvX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f679860f-b6c9-454e-b532-9a2cd6ccc6ad/bin/uautomizer-verify-jihMAELWvX/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-92.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f679860f-b6c9-454e-b532-9a2cd6ccc6ad/bin/uautomizer-verify-jihMAELWvX/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f679860f-b6c9-454e-b532-9a2cd6ccc6ad/bin/uautomizer-verify-jihMAELWvX --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 Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 8876f6eb9f613cb29715c4f42ee784bd0e24b5eed933337274de9fdb9ce0c47b --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-08 18:28:47,151 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 18:28:47,249 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f679860f-b6c9-454e-b532-9a2cd6ccc6ad/bin/uautomizer-verify-jihMAELWvX/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-08 18:28:47,255 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 18:28:47,257 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-08 18:28:47,286 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 18:28:47,288 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-08 18:28:47,289 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-08 18:28:47,290 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-08 18:28:47,291 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-08 18:28:47,292 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 18:28:47,292 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-08 18:28:47,294 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 18:28:47,294 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 18:28:47,296 INFO L153 SettingsManager]: * Use SBE=true [2024-11-08 18:28:47,297 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 18:28:47,297 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 18:28:47,298 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-08 18:28:47,298 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-08 18:28:47,298 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-08 18:28:47,299 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 18:28:47,303 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 18:28:47,303 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 18:28:47,303 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 18:28:47,304 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 18:28:47,304 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-08 18:28:47,304 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 18:28:47,304 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 18:28:47,305 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 18:28:47,305 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-08 18:28:47,305 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-08 18:28:47,306 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-08 18:28:47,306 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 18:28:47,306 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 18:28:47,308 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 18:28:47,309 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 18:28:47,309 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-08 18:28:47,309 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-08 18:28:47,310 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-08 18:28:47,310 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-08 18:28:47,310 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-08 18:28:47,311 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-08 18:28:47,311 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_f679860f-b6c9-454e-b532-9a2cd6ccc6ad/bin/uautomizer-verify-jihMAELWvX/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f679860f-b6c9-454e-b532-9a2cd6ccc6ad/bin/uautomizer-verify-jihMAELWvX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8876f6eb9f613cb29715c4f42ee784bd0e24b5eed933337274de9fdb9ce0c47b [2024-11-08 18:28:47,589 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 18:28:47,629 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 18:28:47,634 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 18:28:47,636 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 18:28:47,636 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 18:28:47,637 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f679860f-b6c9-454e-b532-9a2cd6ccc6ad/bin/uautomizer-verify-jihMAELWvX/../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-92.i Unable to find full path for "g++" [2024-11-08 18:28:49,652 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 18:28:49,862 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 18:28:49,863 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f679860f-b6c9-454e-b532-9a2cd6ccc6ad/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-92.i [2024-11-08 18:28:49,875 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f679860f-b6c9-454e-b532-9a2cd6ccc6ad/bin/uautomizer-verify-jihMAELWvX/data/b15caf2dd/52ac227ae59148efac066729ca1c8728/FLAGc04bf1757 [2024-11-08 18:28:49,892 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f679860f-b6c9-454e-b532-9a2cd6ccc6ad/bin/uautomizer-verify-jihMAELWvX/data/b15caf2dd/52ac227ae59148efac066729ca1c8728 [2024-11-08 18:28:49,895 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 18:28:49,897 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 18:28:49,899 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 18:28:49,899 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 18:28:49,907 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 18:28:49,908 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 06:28:49" (1/1) ... [2024-11-08 18:28:49,912 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5675a922 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:28:49, skipping insertion in model container [2024-11-08 18:28:49,912 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 06:28:49" (1/1) ... [2024-11-08 18:28:49,952 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 18:28:50,193 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_f679860f-b6c9-454e-b532-9a2cd6ccc6ad/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-92.i[915,928] [2024-11-08 18:28:50,269 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 18:28:50,290 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 18:28:50,306 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_f679860f-b6c9-454e-b532-9a2cd6ccc6ad/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-92.i[915,928] [2024-11-08 18:28:50,346 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 18:28:50,381 INFO L204 MainTranslator]: Completed translation [2024-11-08 18:28:50,382 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:28:50 WrapperNode [2024-11-08 18:28:50,382 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 18:28:50,383 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 18:28:50,384 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 18:28:50,384 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 18:28:50,393 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:28:50" (1/1) ... [2024-11-08 18:28:50,403 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:28:50" (1/1) ... [2024-11-08 18:28:50,440 INFO L138 Inliner]: procedures = 26, calls = 30, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 135 [2024-11-08 18:28:50,447 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 18:28:50,447 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 18:28:50,448 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 18:28:50,448 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 18:28:50,463 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:28:50" (1/1) ... [2024-11-08 18:28:50,463 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:28:50" (1/1) ... [2024-11-08 18:28:50,466 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:28:50" (1/1) ... [2024-11-08 18:28:50,487 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-08 18:28:50,487 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:28:50" (1/1) ... [2024-11-08 18:28:50,488 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:28:50" (1/1) ... [2024-11-08 18:28:50,493 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:28:50" (1/1) ... [2024-11-08 18:28:50,497 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:28:50" (1/1) ... [2024-11-08 18:28:50,499 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:28:50" (1/1) ... [2024-11-08 18:28:50,501 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:28:50" (1/1) ... [2024-11-08 18:28:50,503 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 18:28:50,505 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 18:28:50,505 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 18:28:50,505 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 18:28:50,506 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:28:50" (1/1) ... [2024-11-08 18:28:50,513 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 18:28:50,532 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f679860f-b6c9-454e-b532-9a2cd6ccc6ad/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:28:50,552 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f679860f-b6c9-454e-b532-9a2cd6ccc6ad/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-08 18:28:50,557 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f679860f-b6c9-454e-b532-9a2cd6ccc6ad/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-08 18:28:50,589 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 18:28:50,590 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-08 18:28:50,591 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-08 18:28:50,591 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-08 18:28:50,592 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 18:28:50,592 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 18:28:50,676 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 18:28:50,680 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 18:28:51,117 INFO L? ?]: Removed 20 outVars from TransFormulas that were not future-live. [2024-11-08 18:28:51,118 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 18:28:51,131 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 18:28:51,132 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-08 18:28:51,132 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 06:28:51 BoogieIcfgContainer [2024-11-08 18:28:51,133 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 18:28:51,135 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-08 18:28:51,135 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-08 18:28:51,139 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-08 18:28:51,140 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.11 06:28:49" (1/3) ... [2024-11-08 18:28:51,141 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d5e4b57 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 06:28:51, skipping insertion in model container [2024-11-08 18:28:51,141 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:28:50" (2/3) ... [2024-11-08 18:28:51,141 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d5e4b57 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 06:28:51, skipping insertion in model container [2024-11-08 18:28:51,141 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 06:28:51" (3/3) ... [2024-11-08 18:28:51,143 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount25_file-92.i [2024-11-08 18:28:51,163 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-08 18:28:51,164 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-08 18:28:51,234 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-08 18:28:51,241 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=PETRI_NET, 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;@551a35c9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-08 18:28:51,242 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-08 18:28:51,248 INFO L276 IsEmpty]: Start isEmpty. Operand has 61 states, 41 states have (on average 1.3658536585365855) internal successors, (56), 42 states have internal predecessors, (56), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-11-08 18:28:51,262 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-11-08 18:28:51,262 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:28:51,263 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:28:51,264 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:28:51,273 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:28:51,273 INFO L85 PathProgramCache]: Analyzing trace with hash -662931521, now seen corresponding path program 1 times [2024-11-08 18:28:51,285 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:28:51,286 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [607816583] [2024-11-08 18:28:51,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:28:51,288 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:28:51,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:28:51,633 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-08 18:28:51,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:28:51,646 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-08 18:28:51,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:28:51,664 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-08 18:28:51,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:28:51,672 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-08 18:28:51,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:28:51,690 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-08 18:28:51,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:28:51,701 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-08 18:28:51,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:28:51,710 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-08 18:28:51,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:28:51,722 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-08 18:28:51,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:28:51,738 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-08 18:28:51,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:28:51,748 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-08 18:28:51,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:28:51,757 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-08 18:28:51,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:28:51,767 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-08 18:28:51,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:28:51,776 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-08 18:28:51,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:28:51,788 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-08 18:28:51,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:28:51,800 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-08 18:28:51,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:28:51,810 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-08 18:28:51,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:28:51,816 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-08 18:28:51,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:28:51,823 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-08 18:28:51,824 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:28:51,824 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [607816583] [2024-11-08 18:28:51,825 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [607816583] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:28:51,825 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:28:51,826 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 18:28:51,828 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1710892232] [2024-11-08 18:28:51,829 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:28:51,838 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-08 18:28:51,840 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:28:51,866 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-08 18:28:51,867 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-08 18:28:51,870 INFO L87 Difference]: Start difference. First operand has 61 states, 41 states have (on average 1.3658536585365855) internal successors, (56), 42 states have internal predecessors, (56), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) Second operand has 2 states, 2 states have (on average 14.5) internal successors, (29), 2 states have internal predecessors, (29), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-08 18:28:51,903 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:28:51,904 INFO L93 Difference]: Finished difference Result 115 states and 191 transitions. [2024-11-08 18:28:51,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-08 18:28:51,907 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 14.5) internal successors, (29), 2 states have internal predecessors, (29), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) Word has length 111 [2024-11-08 18:28:51,907 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:28:51,916 INFO L225 Difference]: With dead ends: 115 [2024-11-08 18:28:51,917 INFO L226 Difference]: Without dead ends: 57 [2024-11-08 18:28:51,921 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-08 18:28:51,925 INFO L432 NwaCegarLoop]: 83 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, 83 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 [2024-11-08 18:28:51,926 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 83 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 18:28:51,948 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2024-11-08 18:28:51,973 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 57. [2024-11-08 18:28:51,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57 states, 38 states have (on average 1.2894736842105263) internal successors, (49), 38 states have internal predecessors, (49), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-11-08 18:28:51,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 83 transitions. [2024-11-08 18:28:51,979 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 83 transitions. Word has length 111 [2024-11-08 18:28:51,980 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:28:51,980 INFO L471 AbstractCegarLoop]: Abstraction has 57 states and 83 transitions. [2024-11-08 18:28:51,980 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 14.5) internal successors, (29), 2 states have internal predecessors, (29), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-08 18:28:51,981 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 83 transitions. [2024-11-08 18:28:51,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-11-08 18:28:51,986 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:28:51,986 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:28:51,986 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-08 18:28:51,987 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:28:51,987 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:28:51,988 INFO L85 PathProgramCache]: Analyzing trace with hash 1019665345, now seen corresponding path program 1 times [2024-11-08 18:28:51,988 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:28:51,988 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2005085231] [2024-11-08 18:28:51,989 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:28:51,989 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:28:52,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:28:52,648 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-08 18:28:52,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:28:52,655 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-08 18:28:52,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:28:52,659 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-08 18:28:52,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:28:52,664 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-08 18:28:52,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:28:52,670 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-08 18:28:52,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:28:52,675 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-08 18:28:52,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:28:52,680 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-08 18:28:52,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:28:52,685 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-08 18:28:52,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:28:52,693 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-08 18:28:52,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:28:52,700 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-08 18:28:52,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:28:52,704 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-08 18:28:52,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:28:52,713 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-08 18:28:52,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:28:52,723 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-08 18:28:52,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:28:52,730 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-08 18:28:52,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:28:52,734 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-08 18:28:52,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:28:52,741 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-08 18:28:52,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:28:52,748 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-08 18:28:52,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:28:52,753 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-08 18:28:52,754 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:28:52,754 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2005085231] [2024-11-08 18:28:52,754 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2005085231] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:28:52,754 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:28:52,754 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-08 18:28:52,755 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [846420902] [2024-11-08 18:28:52,755 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:28:52,756 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 18:28:52,757 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:28:52,758 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 18:28:52,758 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 18:28:52,758 INFO L87 Difference]: Start difference. First operand 57 states and 83 transitions. Second operand has 4 states, 4 states have (on average 7.25) internal successors, (29), 4 states have internal predecessors, (29), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-08 18:28:53,056 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:28:53,059 INFO L93 Difference]: Finished difference Result 113 states and 165 transitions. [2024-11-08 18:28:53,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 18:28:53,060 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.25) internal successors, (29), 4 states have internal predecessors, (29), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 111 [2024-11-08 18:28:53,060 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:28:53,062 INFO L225 Difference]: With dead ends: 113 [2024-11-08 18:28:53,062 INFO L226 Difference]: Without dead ends: 59 [2024-11-08 18:28:53,065 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-08 18:28:53,067 INFO L432 NwaCegarLoop]: 62 mSDtfsCounter, 26 mSDsluCounter, 95 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 157 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-08 18:28:53,069 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 157 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-08 18:28:53,070 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2024-11-08 18:28:53,077 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 57. [2024-11-08 18:28:53,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57 states, 38 states have (on average 1.263157894736842) internal successors, (48), 38 states have internal predecessors, (48), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-11-08 18:28:53,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 82 transitions. [2024-11-08 18:28:53,080 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 82 transitions. Word has length 111 [2024-11-08 18:28:53,082 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:28:53,082 INFO L471 AbstractCegarLoop]: Abstraction has 57 states and 82 transitions. [2024-11-08 18:28:53,083 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.25) internal successors, (29), 4 states have internal predecessors, (29), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-08 18:28:53,085 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 82 transitions. [2024-11-08 18:28:53,087 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2024-11-08 18:28:53,087 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:28:53,087 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:28:53,088 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-08 18:28:53,088 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:28:53,088 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:28:53,091 INFO L85 PathProgramCache]: Analyzing trace with hash -188299716, now seen corresponding path program 1 times [2024-11-08 18:28:53,091 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:28:53,092 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1439394347] [2024-11-08 18:28:53,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:28:53,092 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:28:53,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-08 18:28:53,237 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1907916155] [2024-11-08 18:28:53,238 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:28:53,238 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:28:53,238 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f679860f-b6c9-454e-b532-9a2cd6ccc6ad/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:28:53,242 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f679860f-b6c9-454e-b532-9a2cd6ccc6ad/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 18:28:53,245 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f679860f-b6c9-454e-b532-9a2cd6ccc6ad/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-08 18:28:53,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 18:28:53,400 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-08 18:28:53,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 18:28:53,530 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-08 18:28:53,530 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-08 18:28:53,532 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-08 18:28:53,555 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f679860f-b6c9-454e-b532-9a2cd6ccc6ad/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-08 18:28:53,734 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f679860f-b6c9-454e-b532-9a2cd6ccc6ad/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:28:53,738 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2024-11-08 18:28:53,850 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-08 18:28:53,854 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.11 06:28:53 BoogieIcfgContainer [2024-11-08 18:28:53,854 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-08 18:28:53,855 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-08 18:28:53,855 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-08 18:28:53,855 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-08 18:28:53,856 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 06:28:51" (3/4) ... [2024-11-08 18:28:53,859 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-08 18:28:53,860 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-08 18:28:53,861 INFO L158 Benchmark]: Toolchain (without parser) took 3964.06ms. Allocated memory is still 169.9MB. Free memory was 131.1MB in the beginning and 78.7MB in the end (delta: 52.5MB). Peak memory consumption was 55.5MB. Max. memory is 16.1GB. [2024-11-08 18:28:53,862 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 115.3MB. Free memory was 83.4MB in the beginning and 83.3MB in the end (delta: 27.4kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 18:28:53,862 INFO L158 Benchmark]: CACSL2BoogieTranslator took 483.46ms. Allocated memory is still 169.9MB. Free memory was 130.5MB in the beginning and 116.5MB in the end (delta: 14.0MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-11-08 18:28:53,863 INFO L158 Benchmark]: Boogie Procedure Inliner took 63.70ms. Allocated memory is still 169.9MB. Free memory was 116.5MB in the beginning and 114.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-08 18:28:53,863 INFO L158 Benchmark]: Boogie Preprocessor took 56.33ms. Allocated memory is still 169.9MB. Free memory was 114.4MB in the beginning and 112.1MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-08 18:28:53,864 INFO L158 Benchmark]: RCFGBuilder took 628.26ms. Allocated memory is still 169.9MB. Free memory was 111.7MB in the beginning and 139.4MB in the end (delta: -27.7MB). Peak memory consumption was 17.9MB. Max. memory is 16.1GB. [2024-11-08 18:28:53,865 INFO L158 Benchmark]: TraceAbstraction took 2719.23ms. Allocated memory is still 169.9MB. Free memory was 138.4MB in the beginning and 78.7MB in the end (delta: 59.7MB). Peak memory consumption was 62.8MB. Max. memory is 16.1GB. [2024-11-08 18:28:53,865 INFO L158 Benchmark]: Witness Printer took 5.68ms. Allocated memory is still 169.9MB. Free memory is still 78.7MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 18:28:53,868 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28ms. Allocated memory is still 115.3MB. Free memory was 83.4MB in the beginning and 83.3MB in the end (delta: 27.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 483.46ms. Allocated memory is still 169.9MB. Free memory was 130.5MB in the beginning and 116.5MB in the end (delta: 14.0MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 63.70ms. Allocated memory is still 169.9MB. Free memory was 116.5MB in the beginning and 114.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 56.33ms. Allocated memory is still 169.9MB. Free memory was 114.4MB in the beginning and 112.1MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 628.26ms. Allocated memory is still 169.9MB. Free memory was 111.7MB in the beginning and 139.4MB in the end (delta: -27.7MB). Peak memory consumption was 17.9MB. Max. memory is 16.1GB. * TraceAbstraction took 2719.23ms. Allocated memory is still 169.9MB. Free memory was 138.4MB in the beginning and 78.7MB in the end (delta: 59.7MB). Peak memory consumption was 62.8MB. Max. memory is 16.1GB. * Witness Printer took 5.68ms. Allocated memory is still 169.9MB. Free memory is still 78.7MB. 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 95, overapproximation of someBinaryFLOATComparisonOperation at line 95. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] signed char var_1_1 = 32; [L23] signed char var_1_2 = 2; [L24] signed char var_1_3 = 8; [L25] signed char var_1_4 = 0; [L26] signed char var_1_5 = 32; [L27] signed char var_1_6 = 10; [L28] double var_1_7 = 1000000.625; [L29] double var_1_8 = 16.65; [L30] signed char var_1_9 = 25; [L31] unsigned char var_1_10 = 0; [L32] unsigned char var_1_11 = 0; [L33] float var_1_12 = 0.25; [L34] unsigned short int var_1_13 = 54726; VAL [isInitial=0, var_1_10=0, var_1_11=0, var_1_12=1/4, var_1_13=54726, var_1_1=32, var_1_2=2, var_1_3=8, var_1_4=0, var_1_5=32, var_1_6=10, var_1_7=8000005/8, var_1_8=333/20, var_1_9=25] [L99] isInitial = 1 [L100] FCALL initially() [L101] COND TRUE 1 [L102] FCALL updateLastVariables() [L103] CALL updateVariables() [L65] var_1_2 = __VERIFIER_nondet_char() [L66] CALL assume_abort_if_not(var_1_2 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=0, var_1_12=1/4, var_1_13=54726, var_1_1=32, var_1_2=1, var_1_3=8, var_1_4=0, var_1_5=32, var_1_6=10, var_1_7=8000005/8, var_1_8=333/20, var_1_9=25] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=0, var_1_12=1/4, var_1_13=54726, var_1_1=32, var_1_2=1, var_1_3=8, var_1_4=0, var_1_5=32, var_1_6=10, var_1_7=8000005/8, var_1_8=333/20, var_1_9=25] [L66] RET assume_abort_if_not(var_1_2 >= 0) VAL [isInitial=1, var_1_10=0, var_1_11=0, var_1_12=1/4, var_1_13=54726, var_1_1=32, var_1_2=1, var_1_3=8, var_1_4=0, var_1_5=32, var_1_6=10, var_1_7=8000005/8, var_1_8=333/20, var_1_9=25] [L67] CALL assume_abort_if_not(var_1_2 <= 63) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=0, var_1_12=1/4, var_1_13=54726, var_1_1=32, var_1_2=1, var_1_3=8, var_1_4=0, var_1_5=32, var_1_6=10, var_1_7=8000005/8, var_1_8=333/20, var_1_9=25] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=0, var_1_12=1/4, var_1_13=54726, var_1_1=32, var_1_2=1, var_1_3=8, var_1_4=0, var_1_5=32, var_1_6=10, var_1_7=8000005/8, var_1_8=333/20, var_1_9=25] [L67] RET assume_abort_if_not(var_1_2 <= 63) VAL [isInitial=1, var_1_10=0, var_1_11=0, var_1_12=1/4, var_1_13=54726, var_1_1=32, var_1_2=1, var_1_3=8, var_1_4=0, var_1_5=32, var_1_6=10, var_1_7=8000005/8, var_1_8=333/20, var_1_9=25] [L68] var_1_3 = __VERIFIER_nondet_char() [L69] CALL assume_abort_if_not(var_1_3 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=0, var_1_12=1/4, var_1_13=54726, var_1_1=32, var_1_2=1, var_1_3=0, var_1_4=0, var_1_5=32, var_1_6=10, var_1_7=8000005/8, var_1_8=333/20, var_1_9=25] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=0, var_1_12=1/4, var_1_13=54726, var_1_1=32, var_1_2=1, var_1_3=0, var_1_4=0, var_1_5=32, var_1_6=10, var_1_7=8000005/8, var_1_8=333/20, var_1_9=25] [L69] RET assume_abort_if_not(var_1_3 >= 0) VAL [isInitial=1, var_1_10=0, var_1_11=0, var_1_12=1/4, var_1_13=54726, var_1_1=32, var_1_2=1, var_1_3=0, var_1_4=0, var_1_5=32, var_1_6=10, var_1_7=8000005/8, var_1_8=333/20, var_1_9=25] [L70] CALL assume_abort_if_not(var_1_3 <= 63) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=0, var_1_12=1/4, var_1_13=54726, var_1_1=32, var_1_2=1, var_1_3=0, var_1_4=0, var_1_5=32, var_1_6=10, var_1_7=8000005/8, var_1_8=333/20, var_1_9=25] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=0, var_1_12=1/4, var_1_13=54726, var_1_1=32, var_1_2=1, var_1_3=0, var_1_4=0, var_1_5=32, var_1_6=10, var_1_7=8000005/8, var_1_8=333/20, var_1_9=25] [L70] RET assume_abort_if_not(var_1_3 <= 63) VAL [isInitial=1, var_1_10=0, var_1_11=0, var_1_12=1/4, var_1_13=54726, var_1_1=32, var_1_2=1, var_1_3=0, var_1_4=0, var_1_5=32, var_1_6=10, var_1_7=8000005/8, var_1_8=333/20, var_1_9=25] [L71] var_1_4 = __VERIFIER_nondet_char() [L72] CALL assume_abort_if_not(var_1_4 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=0, var_1_12=1/4, var_1_13=54726, var_1_1=32, var_1_2=1, var_1_3=0, var_1_4=0, var_1_5=32, var_1_6=10, var_1_7=8000005/8, var_1_8=333/20, var_1_9=25] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=0, var_1_12=1/4, var_1_13=54726, var_1_1=32, var_1_2=1, var_1_3=0, var_1_4=0, var_1_5=32, var_1_6=10, var_1_7=8000005/8, var_1_8=333/20, var_1_9=25] [L72] RET assume_abort_if_not(var_1_4 >= 0) VAL [isInitial=1, var_1_10=0, var_1_11=0, var_1_12=1/4, var_1_13=54726, var_1_1=32, var_1_2=1, var_1_3=0, var_1_4=0, var_1_5=32, var_1_6=10, var_1_7=8000005/8, var_1_8=333/20, var_1_9=25] [L73] CALL assume_abort_if_not(var_1_4 <= 126) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=0, var_1_12=1/4, var_1_13=54726, var_1_1=32, var_1_2=1, var_1_3=0, var_1_4=0, var_1_5=32, var_1_6=10, var_1_7=8000005/8, var_1_8=333/20, var_1_9=25] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=0, var_1_12=1/4, var_1_13=54726, var_1_1=32, var_1_2=1, var_1_3=0, var_1_4=0, var_1_5=32, var_1_6=10, var_1_7=8000005/8, var_1_8=333/20, var_1_9=25] [L73] RET assume_abort_if_not(var_1_4 <= 126) VAL [isInitial=1, var_1_10=0, var_1_11=0, var_1_12=1/4, var_1_13=54726, var_1_1=32, var_1_2=1, var_1_3=0, var_1_4=0, var_1_5=32, var_1_6=10, var_1_7=8000005/8, var_1_8=333/20, var_1_9=25] [L74] var_1_5 = __VERIFIER_nondet_char() [L75] CALL assume_abort_if_not(var_1_5 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=0, var_1_12=1/4, var_1_13=54726, var_1_1=32, var_1_2=1, var_1_3=0, var_1_4=0, var_1_5=0, var_1_6=10, var_1_7=8000005/8, var_1_8=333/20, var_1_9=25] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=0, var_1_12=1/4, var_1_13=54726, var_1_1=32, var_1_2=1, var_1_3=0, var_1_4=0, var_1_5=0, var_1_6=10, var_1_7=8000005/8, var_1_8=333/20, var_1_9=25] [L75] RET assume_abort_if_not(var_1_5 >= 0) VAL [isInitial=1, var_1_10=0, var_1_11=0, var_1_12=1/4, var_1_13=54726, var_1_1=32, var_1_2=1, var_1_3=0, var_1_4=0, var_1_5=0, var_1_6=10, var_1_7=8000005/8, var_1_8=333/20, var_1_9=25] [L76] CALL assume_abort_if_not(var_1_5 <= 63) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=0, var_1_12=1/4, var_1_13=54726, var_1_1=32, var_1_2=1, var_1_3=0, var_1_4=0, var_1_5=0, var_1_6=10, var_1_7=8000005/8, var_1_8=333/20, var_1_9=25] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=0, var_1_12=1/4, var_1_13=54726, var_1_1=32, var_1_2=1, var_1_3=0, var_1_4=0, var_1_5=0, var_1_6=10, var_1_7=8000005/8, var_1_8=333/20, var_1_9=25] [L76] RET assume_abort_if_not(var_1_5 <= 63) VAL [isInitial=1, var_1_10=0, var_1_11=0, var_1_12=1/4, var_1_13=54726, var_1_1=32, var_1_2=1, var_1_3=0, var_1_4=0, var_1_5=0, var_1_6=10, var_1_7=8000005/8, var_1_8=333/20, var_1_9=25] [L77] var_1_6 = __VERIFIER_nondet_char() [L78] CALL assume_abort_if_not(var_1_6 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=0, var_1_12=1/4, var_1_13=54726, var_1_1=32, var_1_2=1, var_1_3=0, var_1_4=0, var_1_5=0, var_1_6=1, var_1_7=8000005/8, var_1_8=333/20, var_1_9=25] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=0, var_1_12=1/4, var_1_13=54726, var_1_1=32, var_1_2=1, var_1_3=0, var_1_4=0, var_1_5=0, var_1_6=1, var_1_7=8000005/8, var_1_8=333/20, var_1_9=25] [L78] RET assume_abort_if_not(var_1_6 >= 0) VAL [isInitial=1, var_1_10=0, var_1_11=0, var_1_12=1/4, var_1_13=54726, var_1_1=32, var_1_2=1, var_1_3=0, var_1_4=0, var_1_5=0, var_1_6=1, var_1_7=8000005/8, var_1_8=333/20, var_1_9=25] [L79] CALL assume_abort_if_not(var_1_6 <= 63) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=0, var_1_12=1/4, var_1_13=54726, var_1_1=32, var_1_2=1, var_1_3=0, var_1_4=0, var_1_5=0, var_1_6=1, var_1_7=8000005/8, var_1_8=333/20, var_1_9=25] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=0, var_1_12=1/4, var_1_13=54726, var_1_1=32, var_1_2=1, var_1_3=0, var_1_4=0, var_1_5=0, var_1_6=1, var_1_7=8000005/8, var_1_8=333/20, var_1_9=25] [L79] RET assume_abort_if_not(var_1_6 <= 63) VAL [isInitial=1, var_1_10=0, var_1_11=0, var_1_12=1/4, var_1_13=54726, var_1_1=32, var_1_2=1, var_1_3=0, var_1_4=0, var_1_5=0, var_1_6=1, var_1_7=8000005/8, var_1_8=333/20, var_1_9=25] [L80] var_1_8 = __VERIFIER_nondet_double() [L81] CALL assume_abort_if_not((var_1_8 >= -922337.2036854765600e+13F && var_1_8 <= -1.0e-20F) || (var_1_8 <= 9223372.036854765600e+12F && var_1_8 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=0, var_1_12=1/4, var_1_13=54726, var_1_1=32, var_1_2=1, var_1_3=0, var_1_4=0, var_1_5=0, var_1_6=1, var_1_7=8000005/8, var_1_9=25] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=0, var_1_12=1/4, var_1_13=54726, var_1_1=32, var_1_2=1, var_1_3=0, var_1_4=0, var_1_5=0, var_1_6=1, var_1_7=8000005/8, var_1_9=25] [L81] RET assume_abort_if_not((var_1_8 >= -922337.2036854765600e+13F && var_1_8 <= -1.0e-20F) || (var_1_8 <= 9223372.036854765600e+12F && var_1_8 >= 1.0e-20F )) VAL [isInitial=1, var_1_10=0, var_1_11=0, var_1_12=1/4, var_1_13=54726, var_1_1=32, var_1_2=1, var_1_3=0, var_1_4=0, var_1_5=0, var_1_6=1, var_1_7=8000005/8, var_1_9=25] [L82] var_1_10 = __VERIFIER_nondet_uchar() [L83] CALL assume_abort_if_not(var_1_10 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_11=0, var_1_12=1/4, var_1_13=54726, var_1_1=32, var_1_2=1, var_1_3=0, var_1_4=0, var_1_5=0, var_1_6=1, var_1_7=8000005/8, var_1_9=25] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_11=0, var_1_12=1/4, var_1_13=54726, var_1_1=32, var_1_2=1, var_1_3=0, var_1_4=0, var_1_5=0, var_1_6=1, var_1_7=8000005/8, var_1_9=25] [L83] RET assume_abort_if_not(var_1_10 >= 0) VAL [isInitial=1, var_1_11=0, var_1_12=1/4, var_1_13=54726, var_1_1=32, var_1_2=1, var_1_3=0, var_1_4=0, var_1_5=0, var_1_6=1, var_1_7=8000005/8, var_1_9=25] [L84] CALL assume_abort_if_not(var_1_10 <= 1) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=0, var_1_12=1/4, var_1_13=54726, var_1_1=32, var_1_2=1, var_1_3=0, var_1_4=0, var_1_5=0, var_1_6=1, var_1_7=8000005/8, var_1_9=25] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=0, var_1_12=1/4, var_1_13=54726, var_1_1=32, var_1_2=1, var_1_3=0, var_1_4=0, var_1_5=0, var_1_6=1, var_1_7=8000005/8, var_1_9=25] [L84] RET assume_abort_if_not(var_1_10 <= 1) VAL [isInitial=1, var_1_10=0, var_1_11=0, var_1_12=1/4, var_1_13=54726, var_1_1=32, var_1_2=1, var_1_3=0, var_1_4=0, var_1_5=0, var_1_6=1, var_1_7=8000005/8, var_1_9=25] [L85] var_1_11 = __VERIFIER_nondet_uchar() [L86] CALL assume_abort_if_not(var_1_11 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_12=1/4, var_1_13=54726, var_1_1=32, var_1_2=1, var_1_3=0, var_1_4=0, var_1_5=0, var_1_6=1, var_1_7=8000005/8, var_1_9=25] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_12=1/4, var_1_13=54726, var_1_1=32, var_1_2=1, var_1_3=0, var_1_4=0, var_1_5=0, var_1_6=1, var_1_7=8000005/8, var_1_9=25] [L86] RET assume_abort_if_not(var_1_11 >= 0) VAL [isInitial=1, var_1_10=0, var_1_12=1/4, var_1_13=54726, var_1_1=32, var_1_2=1, var_1_3=0, var_1_4=0, var_1_5=0, var_1_6=1, var_1_7=8000005/8, var_1_9=25] [L87] CALL assume_abort_if_not(var_1_11 <= 1) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=0, var_1_12=1/4, var_1_13=54726, var_1_1=32, var_1_2=1, var_1_3=0, var_1_4=0, var_1_5=0, var_1_6=1, var_1_7=8000005/8, var_1_9=25] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=0, var_1_12=1/4, var_1_13=54726, var_1_1=32, var_1_2=1, var_1_3=0, var_1_4=0, var_1_5=0, var_1_6=1, var_1_7=8000005/8, var_1_9=25] [L87] RET assume_abort_if_not(var_1_11 <= 1) VAL [isInitial=1, var_1_10=0, var_1_11=0, var_1_12=1/4, var_1_13=54726, var_1_1=32, var_1_2=1, var_1_3=0, var_1_4=0, var_1_5=0, var_1_6=1, var_1_7=8000005/8, var_1_9=25] [L88] var_1_13 = __VERIFIER_nondet_ushort() [L89] CALL assume_abort_if_not(var_1_13 >= 32767) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=0, var_1_12=1/4, var_1_13=32767, var_1_1=32, var_1_2=1, var_1_3=0, var_1_4=0, var_1_5=0, var_1_6=1, var_1_7=8000005/8, var_1_9=25] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=0, var_1_12=1/4, var_1_13=32767, var_1_1=32, var_1_2=1, var_1_3=0, var_1_4=0, var_1_5=0, var_1_6=1, var_1_7=8000005/8, var_1_9=25] [L89] RET assume_abort_if_not(var_1_13 >= 32767) VAL [isInitial=1, var_1_10=0, var_1_11=0, var_1_12=1/4, var_1_13=32767, var_1_1=32, var_1_2=1, var_1_3=0, var_1_4=0, var_1_5=0, var_1_6=1, var_1_7=8000005/8, var_1_9=25] [L90] CALL assume_abort_if_not(var_1_13 <= 65535) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=0, var_1_12=1/4, var_1_13=32767, var_1_1=32, var_1_2=1, var_1_3=0, var_1_4=0, var_1_5=0, var_1_6=1, var_1_7=8000005/8, var_1_9=25] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=0, var_1_12=1/4, var_1_13=32767, var_1_1=32, var_1_2=1, var_1_3=0, var_1_4=0, var_1_5=0, var_1_6=1, var_1_7=8000005/8, var_1_9=25] [L90] RET assume_abort_if_not(var_1_13 <= 65535) VAL [isInitial=1, var_1_10=0, var_1_11=0, var_1_12=1/4, var_1_13=32767, var_1_1=32, var_1_2=1, var_1_3=0, var_1_4=0, var_1_5=0, var_1_6=1, var_1_7=8000005/8, var_1_9=25] [L103] RET updateVariables() [L104] CALL step() [L38] var_1_1 = ((var_1_2 + var_1_3) - ((((var_1_4) > ((var_1_5 + var_1_6))) ? (var_1_4) : ((var_1_5 + var_1_6))))) [L39] signed char stepLocal_0 = var_1_4; VAL [isInitial=1, stepLocal_0=0, var_1_10=0, var_1_11=0, var_1_12=1/4, var_1_13=32767, var_1_1=0, var_1_2=1, var_1_3=0, var_1_4=0, var_1_5=0, var_1_6=1, var_1_7=8000005/8, var_1_9=25] [L40] EXPR var_1_6 & var_1_3 VAL [isInitial=1, stepLocal_0=0, var_1_10=0, var_1_11=0, var_1_12=1/4, var_1_13=32767, var_1_1=0, var_1_2=1, var_1_3=0, var_1_4=0, var_1_5=0, var_1_6=1, var_1_7=8000005/8, var_1_9=25] [L40] COND TRUE ((~ var_1_5) * (var_1_6 & var_1_3)) >= stepLocal_0 [L41] var_1_7 = var_1_8 VAL [isInitial=1, var_1_10=0, var_1_11=0, var_1_12=1/4, var_1_13=32767, var_1_1=0, var_1_2=1, var_1_3=0, var_1_4=0, var_1_5=0, var_1_6=1, var_1_7=2, var_1_8=2, var_1_9=25] [L43] unsigned char stepLocal_1 = var_1_10; VAL [isInitial=1, stepLocal_1=0, var_1_10=0, var_1_11=0, var_1_12=1/4, var_1_13=32767, var_1_1=0, var_1_2=1, var_1_3=0, var_1_4=0, var_1_5=0, var_1_6=1, var_1_7=2, var_1_8=2, var_1_9=25] [L44] COND FALSE !(stepLocal_1 && var_1_11) VAL [isInitial=1, var_1_10=0, var_1_11=0, var_1_12=1/4, var_1_13=32767, var_1_1=0, var_1_2=1, var_1_3=0, var_1_4=0, var_1_5=0, var_1_6=1, var_1_7=2, var_1_8=2, var_1_9=25] [L47] signed long int stepLocal_4 = var_1_13 - var_1_5; [L48] unsigned char stepLocal_3 = var_1_10; [L49] unsigned char stepLocal_2 = var_1_10; VAL [isInitial=1, stepLocal_2=0, stepLocal_3=0, stepLocal_4=32767, var_1_10=0, var_1_11=0, var_1_12=1/4, var_1_13=32767, var_1_1=0, var_1_2=1, var_1_3=0, var_1_4=0, var_1_5=0, var_1_6=1, var_1_7=2, var_1_8=2, var_1_9=25] [L50] COND FALSE !(var_1_11 || stepLocal_3) [L61] var_1_12 = var_1_8 VAL [isInitial=1, stepLocal_2=0, stepLocal_4=32767, var_1_10=0, var_1_11=0, var_1_12=2, var_1_13=32767, var_1_1=0, var_1_2=1, var_1_3=0, var_1_4=0, var_1_5=0, var_1_6=1, var_1_7=2, var_1_8=2, var_1_9=25] [L104] RET step() [L105] CALL, EXPR property() [L95] EXPR (var_1_1 == ((signed char) ((var_1_2 + var_1_3) - ((((var_1_4) > ((var_1_5 + var_1_6))) ? (var_1_4) : ((var_1_5 + var_1_6))))))) && ((((~ var_1_5) * (var_1_6 & var_1_3)) >= var_1_4) ? (var_1_7 == ((double) var_1_8)) : 1) VAL [isInitial=1, var_1_10=0, var_1_11=0, var_1_12=2, var_1_13=32767, var_1_1=0, var_1_2=1, var_1_3=0, var_1_4=0, var_1_5=0, var_1_6=1, var_1_7=2, var_1_8=2, var_1_9=25] [L95] EXPR var_1_6 & var_1_3 VAL [isInitial=1, var_1_10=0, var_1_11=0, var_1_12=2, var_1_13=32767, var_1_1=0, var_1_2=1, var_1_3=0, var_1_4=0, var_1_5=0, var_1_6=1, var_1_7=2, var_1_8=2, var_1_9=25] [L95] EXPR (var_1_1 == ((signed char) ((var_1_2 + var_1_3) - ((((var_1_4) > ((var_1_5 + var_1_6))) ? (var_1_4) : ((var_1_5 + var_1_6))))))) && ((((~ var_1_5) * (var_1_6 & var_1_3)) >= var_1_4) ? (var_1_7 == ((double) var_1_8)) : 1) VAL [isInitial=1, var_1_10=0, var_1_11=0, var_1_12=2, var_1_13=32767, var_1_1=0, var_1_2=1, var_1_3=0, var_1_4=0, var_1_5=0, var_1_6=1, var_1_7=2, var_1_8=2, var_1_9=25] [L95-L96] return (((var_1_1 == ((signed char) ((var_1_2 + var_1_3) - ((((var_1_4) > ((var_1_5 + var_1_6))) ? (var_1_4) : ((var_1_5 + var_1_6))))))) && ((((~ var_1_5) * (var_1_6 & var_1_3)) >= var_1_4) ? (var_1_7 == ((double) var_1_8)) : 1)) && ((var_1_10 && var_1_11) ? (var_1_9 == ((signed char) (var_1_3 - var_1_2))) : 1)) && ((var_1_11 || var_1_10) ? ((var_1_10 || (((((var_1_2) < (var_1_3)) ? (var_1_2) : (var_1_3))) < 32)) ? (((var_1_13 - var_1_5) < var_1_2) ? (var_1_12 == ((float) var_1_8)) : (var_1_12 == ((float) var_1_8))) : (var_1_12 == ((float) var_1_8))) : (var_1_12 == ((float) var_1_8))) ; [L105] RET, EXPR property() [L105] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [isInitial=1, var_1_10=0, var_1_11=0, var_1_12=2, var_1_13=32767, var_1_1=0, var_1_2=1, var_1_3=0, var_1_4=0, var_1_5=0, var_1_6=1, var_1_7=2, var_1_8=2, var_1_9=25] [L19] reach_error() VAL [isInitial=1, var_1_10=0, var_1_11=0, var_1_12=2, var_1_13=32767, var_1_1=0, var_1_2=1, var_1_3=0, var_1_4=0, var_1_5=0, var_1_6=1, var_1_7=2, var_1_8=2, var_1_9=25] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 61 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 2.5s, OverallIterations: 3, TraceHistogramMax: 17, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 26 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 26 mSDsluCounter, 240 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 95 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 61 IncrementalHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 145 mSDtfsCounter, 61 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 92 GetRequests, 89 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=61occurred in iteration=0, InterpolantAutomatonStates: 6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 448 NumberOfCodeBlocks, 448 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 220 ConstructedInterpolants, 0 QuantifiedInterpolants, 1025 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 1088/1088 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 [2024-11-08 18:28:53,904 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f679860f-b6c9-454e-b532-9a2cd6ccc6ad/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f679860f-b6c9-454e-b532-9a2cd6ccc6ad/bin/uautomizer-verify-jihMAELWvX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f679860f-b6c9-454e-b532-9a2cd6ccc6ad/bin/uautomizer-verify-jihMAELWvX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f679860f-b6c9-454e-b532-9a2cd6ccc6ad/bin/uautomizer-verify-jihMAELWvX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f679860f-b6c9-454e-b532-9a2cd6ccc6ad/bin/uautomizer-verify-jihMAELWvX/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-92.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f679860f-b6c9-454e-b532-9a2cd6ccc6ad/bin/uautomizer-verify-jihMAELWvX/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f679860f-b6c9-454e-b532-9a2cd6ccc6ad/bin/uautomizer-verify-jihMAELWvX --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 Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 8876f6eb9f613cb29715c4f42ee784bd0e24b5eed933337274de9fdb9ce0c47b --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-08 18:28:56,792 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 18:28:56,906 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f679860f-b6c9-454e-b532-9a2cd6ccc6ad/bin/uautomizer-verify-jihMAELWvX/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-11-08 18:28:56,916 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 18:28:56,917 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-08 18:28:56,960 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 18:28:56,961 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-08 18:28:56,961 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-08 18:28:56,962 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-08 18:28:56,964 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-08 18:28:56,964 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 18:28:56,965 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-08 18:28:56,966 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 18:28:56,966 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 18:28:56,968 INFO L153 SettingsManager]: * Use SBE=true [2024-11-08 18:28:56,969 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 18:28:56,970 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 18:28:56,970 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-08 18:28:56,970 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-08 18:28:56,970 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 18:28:56,971 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 18:28:56,975 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 18:28:56,975 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 18:28:56,975 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-08 18:28:56,976 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-08 18:28:56,976 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 18:28:56,976 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-08 18:28:56,977 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-08 18:28:56,977 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 18:28:56,977 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 18:28:56,978 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 18:28:56,978 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-08 18:28:56,978 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-08 18:28:56,982 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-08 18:28:56,982 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 18:28:56,982 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 18:28:56,984 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 18:28:56,984 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 18:28:56,985 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2024-11-08 18:28:56,985 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-08 18:28:56,986 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-08 18:28:56,986 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-08 18:28:56,987 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-08 18:28:56,987 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-08 18:28:56,987 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_f679860f-b6c9-454e-b532-9a2cd6ccc6ad/bin/uautomizer-verify-jihMAELWvX/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f679860f-b6c9-454e-b532-9a2cd6ccc6ad/bin/uautomizer-verify-jihMAELWvX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8876f6eb9f613cb29715c4f42ee784bd0e24b5eed933337274de9fdb9ce0c47b [2024-11-08 18:28:57,377 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 18:28:57,404 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 18:28:57,407 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 18:28:57,408 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 18:28:57,409 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 18:28:57,410 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f679860f-b6c9-454e-b532-9a2cd6ccc6ad/bin/uautomizer-verify-jihMAELWvX/../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-92.i Unable to find full path for "g++" [2024-11-08 18:28:59,480 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 18:28:59,761 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 18:28:59,761 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f679860f-b6c9-454e-b532-9a2cd6ccc6ad/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-92.i [2024-11-08 18:28:59,770 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f679860f-b6c9-454e-b532-9a2cd6ccc6ad/bin/uautomizer-verify-jihMAELWvX/data/7ffb0baab/1545762c929c40f48f1214344707a8ea/FLAG9016dba76 [2024-11-08 18:28:59,787 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f679860f-b6c9-454e-b532-9a2cd6ccc6ad/bin/uautomizer-verify-jihMAELWvX/data/7ffb0baab/1545762c929c40f48f1214344707a8ea [2024-11-08 18:28:59,790 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 18:28:59,792 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 18:28:59,793 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 18:28:59,794 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 18:28:59,802 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 18:28:59,803 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 06:28:59" (1/1) ... [2024-11-08 18:28:59,805 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@52988131 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:28:59, skipping insertion in model container [2024-11-08 18:28:59,805 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 06:28:59" (1/1) ... [2024-11-08 18:28:59,834 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 18:29:00,097 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_f679860f-b6c9-454e-b532-9a2cd6ccc6ad/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-92.i[915,928] [2024-11-08 18:29:00,160 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 18:29:00,183 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 18:29:00,198 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_f679860f-b6c9-454e-b532-9a2cd6ccc6ad/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-92.i[915,928] [2024-11-08 18:29:00,221 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 18:29:00,245 INFO L204 MainTranslator]: Completed translation [2024-11-08 18:29:00,245 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:29:00 WrapperNode [2024-11-08 18:29:00,245 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 18:29:00,246 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 18:29:00,246 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 18:29:00,247 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 18:29:00,255 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:29:00" (1/1) ... [2024-11-08 18:29:00,268 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:29:00" (1/1) ... [2024-11-08 18:29:00,295 INFO L138 Inliner]: procedures = 27, calls = 30, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 107 [2024-11-08 18:29:00,295 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 18:29:00,296 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 18:29:00,297 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 18:29:00,297 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 18:29:00,310 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:29:00" (1/1) ... [2024-11-08 18:29:00,311 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:29:00" (1/1) ... [2024-11-08 18:29:00,315 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:29:00" (1/1) ... [2024-11-08 18:29:00,331 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-08 18:29:00,331 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:29:00" (1/1) ... [2024-11-08 18:29:00,332 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:29:00" (1/1) ... [2024-11-08 18:29:00,347 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:29:00" (1/1) ... [2024-11-08 18:29:00,355 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:29:00" (1/1) ... [2024-11-08 18:29:00,358 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:29:00" (1/1) ... [2024-11-08 18:29:00,363 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:29:00" (1/1) ... [2024-11-08 18:29:00,367 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 18:29:00,368 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 18:29:00,368 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 18:29:00,368 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 18:29:00,370 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:29:00" (1/1) ... [2024-11-08 18:29:00,409 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 18:29:00,427 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f679860f-b6c9-454e-b532-9a2cd6ccc6ad/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:29:00,448 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f679860f-b6c9-454e-b532-9a2cd6ccc6ad/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-08 18:29:00,486 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f679860f-b6c9-454e-b532-9a2cd6ccc6ad/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-08 18:29:00,526 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 18:29:00,526 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-08 18:29:00,526 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-08 18:29:00,527 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-08 18:29:00,527 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 18:29:00,529 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 18:29:00,623 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 18:29:00,625 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 18:29:02,085 INFO L? ?]: Removed 18 outVars from TransFormulas that were not future-live. [2024-11-08 18:29:02,086 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 18:29:02,100 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 18:29:02,103 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-08 18:29:02,104 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 06:29:02 BoogieIcfgContainer [2024-11-08 18:29:02,104 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 18:29:02,106 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-08 18:29:02,107 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-08 18:29:02,110 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-08 18:29:02,111 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.11 06:28:59" (1/3) ... [2024-11-08 18:29:02,112 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@63f4defc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 06:29:02, skipping insertion in model container [2024-11-08 18:29:02,113 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:29:00" (2/3) ... [2024-11-08 18:29:02,115 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@63f4defc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 06:29:02, skipping insertion in model container [2024-11-08 18:29:02,115 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 06:29:02" (3/3) ... [2024-11-08 18:29:02,119 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount25_file-92.i [2024-11-08 18:29:02,140 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-08 18:29:02,140 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-08 18:29:02,218 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-08 18:29:02,225 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=PETRI_NET, 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;@543a3384, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-08 18:29:02,226 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-08 18:29:02,231 INFO L276 IsEmpty]: Start isEmpty. Operand has 52 states, 32 states have (on average 1.3125) internal successors, (42), 33 states have internal predecessors, (42), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-11-08 18:29:02,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2024-11-08 18:29:02,247 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:29:02,248 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:29:02,248 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:29:02,257 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:29:02,258 INFO L85 PathProgramCache]: Analyzing trace with hash 1893237757, now seen corresponding path program 1 times [2024-11-08 18:29:02,273 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 18:29:02,274 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1189616480] [2024-11-08 18:29:02,275 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:29:02,275 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 [2024-11-08 18:29:02,276 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f679860f-b6c9-454e-b532-9a2cd6ccc6ad/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 18:29:02,279 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f679860f-b6c9-454e-b532-9a2cd6ccc6ad/bin/uautomizer-verify-jihMAELWvX/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) [2024-11-08 18:29:02,281 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f679860f-b6c9-454e-b532-9a2cd6ccc6ad/bin/uautomizer-verify-jihMAELWvX/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 [2024-11-08 18:29:02,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:29:02,522 INFO L255 TraceCheckSpWp]: Trace formula consists of 178 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-08 18:29:02,531 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:29:02,609 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 284 proven. 0 refuted. 0 times theorem prover too weak. 260 trivial. 0 not checked. [2024-11-08 18:29:02,612 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 18:29:02,614 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 18:29:02,615 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1189616480] [2024-11-08 18:29:02,616 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1189616480] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:29:02,617 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:29:02,620 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 18:29:02,622 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [320452622] [2024-11-08 18:29:02,627 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:29:02,635 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-08 18:29:02,636 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 18:29:02,672 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-08 18:29:02,672 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-08 18:29:02,675 INFO L87 Difference]: Start difference. First operand has 52 states, 32 states have (on average 1.3125) internal successors, (42), 33 states have internal predecessors, (42), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) Second operand has 2 states, 2 states have (on average 15.0) internal successors, (30), 2 states have internal predecessors, (30), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-08 18:29:02,711 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:29:02,711 INFO L93 Difference]: Finished difference Result 97 states and 163 transitions. [2024-11-08 18:29:02,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-08 18:29:02,717 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 15.0) internal successors, (30), 2 states have internal predecessors, (30), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 108 [2024-11-08 18:29:02,718 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:29:02,735 INFO L225 Difference]: With dead ends: 97 [2024-11-08 18:29:02,738 INFO L226 Difference]: Without dead ends: 48 [2024-11-08 18:29:02,742 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 107 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-08 18:29:02,746 INFO L432 NwaCegarLoop]: 69 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 69 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 18:29:02,748 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 18:29:02,770 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2024-11-08 18:29:02,810 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 48. [2024-11-08 18:29:02,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48 states, 29 states have (on average 1.206896551724138) internal successors, (35), 29 states have internal predecessors, (35), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-11-08 18:29:02,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 69 transitions. [2024-11-08 18:29:02,820 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 69 transitions. Word has length 108 [2024-11-08 18:29:02,822 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:29:02,822 INFO L471 AbstractCegarLoop]: Abstraction has 48 states and 69 transitions. [2024-11-08 18:29:02,823 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 15.0) internal successors, (30), 2 states have internal predecessors, (30), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-08 18:29:02,823 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 69 transitions. [2024-11-08 18:29:02,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2024-11-08 18:29:02,829 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:29:02,830 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:29:02,838 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f679860f-b6c9-454e-b532-9a2cd6ccc6ad/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2024-11-08 18:29:03,035 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f679860f-b6c9-454e-b532-9a2cd6ccc6ad/bin/uautomizer-verify-jihMAELWvX/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 [2024-11-08 18:29:03,036 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:29:03,037 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:29:03,038 INFO L85 PathProgramCache]: Analyzing trace with hash 1834905403, now seen corresponding path program 1 times [2024-11-08 18:29:03,039 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 18:29:03,040 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [774415467] [2024-11-08 18:29:03,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:29:03,041 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 [2024-11-08 18:29:03,042 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f679860f-b6c9-454e-b532-9a2cd6ccc6ad/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 18:29:03,044 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f679860f-b6c9-454e-b532-9a2cd6ccc6ad/bin/uautomizer-verify-jihMAELWvX/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) [2024-11-08 18:29:03,047 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f679860f-b6c9-454e-b532-9a2cd6ccc6ad/bin/uautomizer-verify-jihMAELWvX/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 [2024-11-08 18:29:03,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:29:03,282 INFO L255 TraceCheckSpWp]: Trace formula consists of 178 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-08 18:29:03,291 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:29:03,331 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-08 18:29:03,332 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 18:29:03,356 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 18:29:03,356 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [774415467] [2024-11-08 18:29:03,356 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [774415467] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:29:03,356 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:29:03,356 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 18:29:03,357 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [717036291] [2024-11-08 18:29:03,357 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:29:03,358 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 18:29:03,359 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 18:29:03,362 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 18:29:03,363 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 18:29:03,363 INFO L87 Difference]: Start difference. First operand 48 states and 69 transitions. Second operand has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-08 18:29:03,723 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:29:03,723 INFO L93 Difference]: Finished difference Result 129 states and 186 transitions. [2024-11-08 18:29:03,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 18:29:03,724 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 108 [2024-11-08 18:29:03,725 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:29:03,727 INFO L225 Difference]: With dead ends: 129 [2024-11-08 18:29:03,727 INFO L226 Difference]: Without dead ends: 84 [2024-11-08 18:29:03,728 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 106 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 18:29:03,730 INFO L432 NwaCegarLoop]: 111 mSDtfsCounter, 48 mSDsluCounter, 60 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 171 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-08 18:29:03,730 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 171 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-08 18:29:03,731 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2024-11-08 18:29:03,749 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 81. [2024-11-08 18:29:03,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 81 states, 48 states have (on average 1.1875) internal successors, (57), 49 states have internal predecessors, (57), 30 states have call successors, (30), 2 states have call predecessors, (30), 2 states have return successors, (30), 29 states have call predecessors, (30), 30 states have call successors, (30) [2024-11-08 18:29:03,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 117 transitions. [2024-11-08 18:29:03,753 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 117 transitions. Word has length 108 [2024-11-08 18:29:03,754 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:29:03,754 INFO L471 AbstractCegarLoop]: Abstraction has 81 states and 117 transitions. [2024-11-08 18:29:03,755 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-08 18:29:03,755 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 117 transitions. [2024-11-08 18:29:03,757 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2024-11-08 18:29:03,758 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:29:03,758 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:29:03,766 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f679860f-b6c9-454e-b532-9a2cd6ccc6ad/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2024-11-08 18:29:03,958 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f679860f-b6c9-454e-b532-9a2cd6ccc6ad/bin/uautomizer-verify-jihMAELWvX/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 [2024-11-08 18:29:03,959 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:29:03,960 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:29:03,960 INFO L85 PathProgramCache]: Analyzing trace with hash -685054531, now seen corresponding path program 1 times [2024-11-08 18:29:03,960 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 18:29:03,961 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1650483193] [2024-11-08 18:29:03,961 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:29:03,961 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 [2024-11-08 18:29:03,961 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f679860f-b6c9-454e-b532-9a2cd6ccc6ad/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 18:29:03,964 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f679860f-b6c9-454e-b532-9a2cd6ccc6ad/bin/uautomizer-verify-jihMAELWvX/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) [2024-11-08 18:29:03,966 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f679860f-b6c9-454e-b532-9a2cd6ccc6ad/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2024-11-08 18:29:04,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:29:04,187 INFO L255 TraceCheckSpWp]: Trace formula consists of 176 conjuncts, 25 conjuncts are in the unsatisfiable core [2024-11-08 18:29:04,196 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:29:27,858 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 256 proven. 162 refuted. 0 times theorem prover too weak. 126 trivial. 0 not checked. [2024-11-08 18:29:27,859 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 18:30:31,140 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 30 proven. 18 refuted. 0 times theorem prover too weak. 496 trivial. 0 not checked. [2024-11-08 18:30:31,144 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 18:30:31,144 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1650483193] [2024-11-08 18:30:31,144 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1650483193] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 18:30:31,144 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-08 18:30:31,144 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 10] total 31 [2024-11-08 18:30:31,145 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [794770408] [2024-11-08 18:30:31,145 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-08 18:30:31,146 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2024-11-08 18:30:31,146 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 18:30:31,147 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2024-11-08 18:30:31,148 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=195, Invalid=735, Unknown=0, NotChecked=0, Total=930 [2024-11-08 18:30:31,155 INFO L87 Difference]: Start difference. First operand 81 states and 117 transitions. Second operand has 31 states, 31 states have (on average 2.3225806451612905) internal successors, (72), 29 states have internal predecessors, (72), 8 states have call successors, (34), 7 states have call predecessors, (34), 9 states have return successors, (34), 7 states have call predecessors, (34), 8 states have call successors, (34) [2024-11-08 18:31:45,179 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:31:45,179 INFO L93 Difference]: Finished difference Result 167 states and 198 transitions. [2024-11-08 18:31:45,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2024-11-08 18:31:45,189 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 31 states have (on average 2.3225806451612905) internal successors, (72), 29 states have internal predecessors, (72), 8 states have call successors, (34), 7 states have call predecessors, (34), 9 states have return successors, (34), 7 states have call predecessors, (34), 8 states have call successors, (34) Word has length 108 [2024-11-08 18:31:45,190 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:31:45,193 INFO L225 Difference]: With dead ends: 167 [2024-11-08 18:31:45,193 INFO L226 Difference]: Without dead ends: 165 [2024-11-08 18:31:45,195 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 234 GetRequests, 185 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 581 ImplicationChecksByTransitivity, 101.2s TimeCoverageRelationStatistics Valid=563, Invalid=1987, Unknown=0, NotChecked=0, Total=2550 [2024-11-08 18:31:45,197 INFO L432 NwaCegarLoop]: 51 mSDtfsCounter, 142 mSDsluCounter, 364 mSDsCounter, 0 mSdLazyCounter, 571 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 415 SdHoareTripleChecker+Invalid, 622 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 571 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18.0s IncrementalHoareTripleChecker+Time [2024-11-08 18:31:45,197 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [142 Valid, 415 Invalid, 622 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 571 Invalid, 0 Unknown, 0 Unchecked, 18.0s Time] [2024-11-08 18:31:45,198 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 165 states. [2024-11-08 18:31:45,235 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 165 to 136. [2024-11-08 18:31:45,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 136 states, 91 states have (on average 1.120879120879121) internal successors, (102), 92 states have internal predecessors, (102), 30 states have call successors, (30), 14 states have call predecessors, (30), 14 states have return successors, (30), 29 states have call predecessors, (30), 30 states have call successors, (30) [2024-11-08 18:31:45,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 136 states and 162 transitions. [2024-11-08 18:31:45,239 INFO L78 Accepts]: Start accepts. Automaton has 136 states and 162 transitions. Word has length 108 [2024-11-08 18:31:45,239 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:31:45,240 INFO L471 AbstractCegarLoop]: Abstraction has 136 states and 162 transitions. [2024-11-08 18:31:45,240 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 31 states have (on average 2.3225806451612905) internal successors, (72), 29 states have internal predecessors, (72), 8 states have call successors, (34), 7 states have call predecessors, (34), 9 states have return successors, (34), 7 states have call predecessors, (34), 8 states have call successors, (34) [2024-11-08 18:31:45,240 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 162 transitions. [2024-11-08 18:31:45,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2024-11-08 18:31:45,242 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:31:45,243 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:31:45,248 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f679860f-b6c9-454e-b532-9a2cd6ccc6ad/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Ended with exit code 0 [2024-11-08 18:31:45,446 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f679860f-b6c9-454e-b532-9a2cd6ccc6ad/bin/uautomizer-verify-jihMAELWvX/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 [2024-11-08 18:31:45,447 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:31:45,447 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:31:45,448 INFO L85 PathProgramCache]: Analyzing trace with hash -4996161, now seen corresponding path program 1 times [2024-11-08 18:31:45,448 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 18:31:45,448 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1513378665] [2024-11-08 18:31:45,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:31:45,449 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 [2024-11-08 18:31:45,449 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f679860f-b6c9-454e-b532-9a2cd6ccc6ad/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 18:31:45,455 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f679860f-b6c9-454e-b532-9a2cd6ccc6ad/bin/uautomizer-verify-jihMAELWvX/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) [2024-11-08 18:31:45,456 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f679860f-b6c9-454e-b532-9a2cd6ccc6ad/bin/uautomizer-verify-jihMAELWvX/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 [2024-11-08 18:31:45,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:31:45,650 INFO L255 TraceCheckSpWp]: Trace formula consists of 175 conjuncts, 35 conjuncts are in the unsatisfiable core [2024-11-08 18:31:45,658 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:32:15,314 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 276 proven. 201 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2024-11-08 18:32:15,315 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 18:33:36,867 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 18:33:36,868 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1513378665] [2024-11-08 18:33:36,868 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1513378665] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 18:33:36,868 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [20031530] [2024-11-08 18:33:36,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:33:36,869 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:33:36,869 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f679860f-b6c9-454e-b532-9a2cd6ccc6ad/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:33:36,871 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f679860f-b6c9-454e-b532-9a2cd6ccc6ad/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 18:33:36,874 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f679860f-b6c9-454e-b532-9a2cd6ccc6ad/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-08 18:33:37,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:33:37,090 INFO L255 TraceCheckSpWp]: Trace formula consists of 175 conjuncts, 31 conjuncts are in the unsatisfiable core [2024-11-08 18:33:37,094 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:34:38,792 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 342 proven. 144 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2024-11-08 18:34:38,793 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 18:35:31,087 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [20031530] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 18:35:31,088 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-08 18:35:31,088 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [31, 27] total 55 [2024-11-08 18:35:31,088 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1280205722] [2024-11-08 18:35:31,088 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-08 18:35:31,089 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 55 states [2024-11-08 18:35:31,090 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 18:35:31,091 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 55 interpolants. [2024-11-08 18:35:31,093 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=585, Invalid=3197, Unknown=0, NotChecked=0, Total=3782 [2024-11-08 18:35:31,094 INFO L87 Difference]: Start difference. First operand 136 states and 162 transitions. Second operand has 55 states, 55 states have (on average 1.981818181818182) internal successors, (109), 50 states have internal predecessors, (109), 16 states have call successors, (34), 16 states have call predecessors, (34), 22 states have return successors, (34), 15 states have call predecessors, (34), 16 states have call successors, (34) [2024-11-08 18:35:54,161 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:35:54,161 INFO L93 Difference]: Finished difference Result 192 states and 217 transitions. [2024-11-08 18:35:54,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2024-11-08 18:35:54,168 INFO L78 Accepts]: Start accepts. Automaton has has 55 states, 55 states have (on average 1.981818181818182) internal successors, (109), 50 states have internal predecessors, (109), 16 states have call successors, (34), 16 states have call predecessors, (34), 22 states have return successors, (34), 15 states have call predecessors, (34), 16 states have call successors, (34) Word has length 108 [2024-11-08 18:35:54,169 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:35:54,170 INFO L225 Difference]: With dead ends: 192 [2024-11-08 18:35:54,171 INFO L226 Difference]: Without dead ends: 190 [2024-11-08 18:35:54,173 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 248 GetRequests, 176 SyntacticMatches, 1 SemanticMatches, 71 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2051 ImplicationChecksByTransitivity, 132.4s TimeCoverageRelationStatistics Valid=889, Invalid=4367, Unknown=0, NotChecked=0, Total=5256 [2024-11-08 18:35:54,174 INFO L432 NwaCegarLoop]: 63 mSDtfsCounter, 92 mSDsluCounter, 477 mSDsCounter, 0 mSdLazyCounter, 904 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 540 SdHoareTripleChecker+Invalid, 926 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 904 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.9s IncrementalHoareTripleChecker+Time [2024-11-08 18:35:54,176 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [92 Valid, 540 Invalid, 926 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 904 Invalid, 0 Unknown, 0 Unchecked, 7.9s Time] [2024-11-08 18:35:54,177 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 190 states. [2024-11-08 18:35:54,200 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 190 to 156. [2024-11-08 18:35:54,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 156 states, 105 states have (on average 1.0857142857142856) internal successors, (114), 106 states have internal predecessors, (114), 30 states have call successors, (30), 20 states have call predecessors, (30), 20 states have return successors, (30), 29 states have call predecessors, (30), 30 states have call successors, (30) [2024-11-08 18:35:54,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 156 states to 156 states and 174 transitions. [2024-11-08 18:35:54,205 INFO L78 Accepts]: Start accepts. Automaton has 156 states and 174 transitions. Word has length 108 [2024-11-08 18:35:54,205 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:35:54,206 INFO L471 AbstractCegarLoop]: Abstraction has 156 states and 174 transitions. [2024-11-08 18:35:54,206 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 55 states, 55 states have (on average 1.981818181818182) internal successors, (109), 50 states have internal predecessors, (109), 16 states have call successors, (34), 16 states have call predecessors, (34), 22 states have return successors, (34), 15 states have call predecessors, (34), 16 states have call successors, (34) [2024-11-08 18:35:54,206 INFO L276 IsEmpty]: Start isEmpty. Operand 156 states and 174 transitions. [2024-11-08 18:35:54,208 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2024-11-08 18:35:54,208 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:35:54,209 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:35:54,215 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f679860f-b6c9-454e-b532-9a2cd6ccc6ad/bin/uautomizer-verify-jihMAELWvX/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 [2024-11-08 18:35:54,429 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f679860f-b6c9-454e-b532-9a2cd6ccc6ad/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-08 18:35:54,613 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f679860f-b6c9-454e-b532-9a2cd6ccc6ad/bin/uautomizer-verify-jihMAELWvX/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_f679860f-b6c9-454e-b532-9a2cd6ccc6ad/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:35:54,613 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:35:54,614 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:35:54,614 INFO L85 PathProgramCache]: Analyzing trace with hash 642004480, now seen corresponding path program 1 times [2024-11-08 18:35:54,614 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 18:35:54,614 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [718883315] [2024-11-08 18:35:54,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:35:54,615 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 [2024-11-08 18:35:54,615 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f679860f-b6c9-454e-b532-9a2cd6ccc6ad/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 18:35:54,616 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f679860f-b6c9-454e-b532-9a2cd6ccc6ad/bin/uautomizer-verify-jihMAELWvX/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) [2024-11-08 18:35:54,618 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f679860f-b6c9-454e-b532-9a2cd6ccc6ad/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2024-11-08 18:35:54,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:35:54,744 INFO L255 TraceCheckSpWp]: Trace formula consists of 179 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-08 18:35:54,746 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:35:54,981 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 232 proven. 12 refuted. 0 times theorem prover too weak. 300 trivial. 0 not checked. [2024-11-08 18:35:54,982 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 18:35:55,215 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-08 18:35:55,216 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 18:35:55,216 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [718883315] [2024-11-08 18:35:55,216 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [718883315] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-08 18:35:55,216 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 18:35:55,216 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [8] total 11 [2024-11-08 18:35:55,217 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2058348674] [2024-11-08 18:35:55,217 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:35:55,217 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 18:35:55,218 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 18:35:55,218 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 18:35:55,219 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2024-11-08 18:35:55,219 INFO L87 Difference]: Start difference. First operand 156 states and 174 transitions. Second operand has 5 states, 5 states have (on average 5.4) internal successors, (27), 5 states have internal predecessors, (27), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-08 18:35:56,192 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:35:56,193 INFO L93 Difference]: Finished difference Result 311 states and 346 transitions. [2024-11-08 18:35:56,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 18:35:56,194 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.4) internal successors, (27), 5 states have internal predecessors, (27), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 109 [2024-11-08 18:35:56,195 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:35:56,198 INFO L225 Difference]: With dead ends: 311 [2024-11-08 18:35:56,198 INFO L226 Difference]: Without dead ends: 158 [2024-11-08 18:35:56,199 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 217 GetRequests, 207 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2024-11-08 18:35:56,200 INFO L432 NwaCegarLoop]: 103 mSDtfsCounter, 43 mSDsluCounter, 219 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 322 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-08 18:35:56,200 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 322 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-08 18:35:56,201 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 158 states. [2024-11-08 18:35:56,223 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 158 to 156. [2024-11-08 18:35:56,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 156 states, 105 states have (on average 1.0761904761904761) internal successors, (113), 106 states have internal predecessors, (113), 30 states have call successors, (30), 20 states have call predecessors, (30), 20 states have return successors, (30), 29 states have call predecessors, (30), 30 states have call successors, (30) [2024-11-08 18:35:56,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 156 states to 156 states and 173 transitions. [2024-11-08 18:35:56,225 INFO L78 Accepts]: Start accepts. Automaton has 156 states and 173 transitions. Word has length 109 [2024-11-08 18:35:56,226 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:35:56,226 INFO L471 AbstractCegarLoop]: Abstraction has 156 states and 173 transitions. [2024-11-08 18:35:56,226 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.4) internal successors, (27), 5 states have internal predecessors, (27), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-08 18:35:56,226 INFO L276 IsEmpty]: Start isEmpty. Operand 156 states and 173 transitions. [2024-11-08 18:35:56,228 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2024-11-08 18:35:56,228 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:35:56,229 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:35:56,238 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f679860f-b6c9-454e-b532-9a2cd6ccc6ad/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Ended with exit code 0 [2024-11-08 18:35:56,429 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f679860f-b6c9-454e-b532-9a2cd6ccc6ad/bin/uautomizer-verify-jihMAELWvX/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 [2024-11-08 18:35:56,429 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:35:56,430 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:35:56,430 INFO L85 PathProgramCache]: Analyzing trace with hash -167342146, now seen corresponding path program 1 times [2024-11-08 18:35:56,430 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 18:35:56,431 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [445609181] [2024-11-08 18:35:56,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:35:56,431 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 [2024-11-08 18:35:56,431 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f679860f-b6c9-454e-b532-9a2cd6ccc6ad/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 18:35:56,432 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f679860f-b6c9-454e-b532-9a2cd6ccc6ad/bin/uautomizer-verify-jihMAELWvX/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) [2024-11-08 18:35:56,433 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f679860f-b6c9-454e-b532-9a2cd6ccc6ad/bin/uautomizer-verify-jihMAELWvX/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 [2024-11-08 18:35:56,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:35:56,564 INFO L255 TraceCheckSpWp]: Trace formula consists of 177 conjuncts, 30 conjuncts are in the unsatisfiable core [2024-11-08 18:35:56,568 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:36:19,494 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 294 proven. 159 refuted. 0 times theorem prover too weak. 91 trivial. 0 not checked. [2024-11-08 18:36:19,494 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 18:38:14,393 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 30 proven. 18 refuted. 0 times theorem prover too weak. 496 trivial. 0 not checked. [2024-11-08 18:38:14,393 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 18:38:14,393 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [445609181] [2024-11-08 18:38:14,393 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [445609181] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 18:38:14,394 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-08 18:38:14,394 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [26, 12] total 37 [2024-11-08 18:38:14,394 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1154748355] [2024-11-08 18:38:14,394 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-08 18:38:14,395 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 37 states [2024-11-08 18:38:14,395 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 18:38:14,396 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2024-11-08 18:38:14,397 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=270, Invalid=1062, Unknown=0, NotChecked=0, Total=1332 [2024-11-08 18:38:14,397 INFO L87 Difference]: Start difference. First operand 156 states and 173 transitions. Second operand has 37 states, 37 states have (on average 2.1621621621621623) internal successors, (80), 35 states have internal predecessors, (80), 10 states have call successors, (34), 8 states have call predecessors, (34), 11 states have return successors, (34), 9 states have call predecessors, (34), 10 states have call successors, (34) [2024-11-08 18:39:44,465 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:39:44,465 INFO L93 Difference]: Finished difference Result 203 states and 225 transitions. [2024-11-08 18:39:44,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2024-11-08 18:39:44,472 INFO L78 Accepts]: Start accepts. Automaton has has 37 states, 37 states have (on average 2.1621621621621623) internal successors, (80), 35 states have internal predecessors, (80), 10 states have call successors, (34), 8 states have call predecessors, (34), 11 states have return successors, (34), 9 states have call predecessors, (34), 10 states have call successors, (34) Word has length 109 [2024-11-08 18:39:44,473 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:39:44,474 INFO L225 Difference]: With dead ends: 203 [2024-11-08 18:39:44,474 INFO L226 Difference]: Without dead ends: 201 [2024-11-08 18:39:44,476 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 232 GetRequests, 181 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 744 ImplicationChecksByTransitivity, 122.7s TimeCoverageRelationStatistics Valid=597, Invalid=2159, Unknown=0, NotChecked=0, Total=2756 [2024-11-08 18:39:44,476 INFO L432 NwaCegarLoop]: 55 mSDtfsCounter, 181 mSDsluCounter, 387 mSDsCounter, 0 mSdLazyCounter, 736 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 40.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 181 SdHoareTripleChecker+Valid, 442 SdHoareTripleChecker+Invalid, 774 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 736 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 41.6s IncrementalHoareTripleChecker+Time [2024-11-08 18:39:44,477 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [181 Valid, 442 Invalid, 774 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 736 Invalid, 0 Unknown, 0 Unchecked, 41.6s Time] [2024-11-08 18:39:44,480 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 201 states. [2024-11-08 18:39:44,503 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 201 to 99. [2024-11-08 18:39:44,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 99 states, 70 states have (on average 1.1285714285714286) internal successors, (79), 70 states have internal predecessors, (79), 17 states have call successors, (17), 11 states have call predecessors, (17), 11 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-11-08 18:39:44,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 113 transitions. [2024-11-08 18:39:44,505 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 113 transitions. Word has length 109 [2024-11-08 18:39:44,506 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:39:44,506 INFO L471 AbstractCegarLoop]: Abstraction has 99 states and 113 transitions. [2024-11-08 18:39:44,506 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 37 states, 37 states have (on average 2.1621621621621623) internal successors, (80), 35 states have internal predecessors, (80), 10 states have call successors, (34), 8 states have call predecessors, (34), 11 states have return successors, (34), 9 states have call predecessors, (34), 10 states have call successors, (34) [2024-11-08 18:39:44,506 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 113 transitions. [2024-11-08 18:39:44,511 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2024-11-08 18:39:44,511 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:39:44,512 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:39:44,517 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f679860f-b6c9-454e-b532-9a2cd6ccc6ad/bin/uautomizer-verify-jihMAELWvX/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 [2024-11-08 18:39:44,712 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f679860f-b6c9-454e-b532-9a2cd6ccc6ad/bin/uautomizer-verify-jihMAELWvX/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 [2024-11-08 18:39:44,712 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:39:44,713 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:39:44,713 INFO L85 PathProgramCache]: Analyzing trace with hash -560369156, now seen corresponding path program 1 times [2024-11-08 18:39:44,713 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 18:39:44,713 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1359755183] [2024-11-08 18:39:44,713 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:39:44,713 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 [2024-11-08 18:39:44,714 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f679860f-b6c9-454e-b532-9a2cd6ccc6ad/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 18:39:44,714 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f679860f-b6c9-454e-b532-9a2cd6ccc6ad/bin/uautomizer-verify-jihMAELWvX/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) [2024-11-08 18:39:44,716 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f679860f-b6c9-454e-b532-9a2cd6ccc6ad/bin/uautomizer-verify-jihMAELWvX/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 [2024-11-08 18:39:44,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:39:44,851 INFO L255 TraceCheckSpWp]: Trace formula consists of 176 conjuncts, 46 conjuncts are in the unsatisfiable core [2024-11-08 18:39:44,854 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:40:21,111 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 341 proven. 177 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2024-11-08 18:40:21,111 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 18:42:53,139 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 30 proven. 18 refuted. 0 times theorem prover too weak. 496 trivial. 0 not checked. [2024-11-08 18:42:53,139 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 18:42:53,139 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1359755183] [2024-11-08 18:42:53,139 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1359755183] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 18:42:53,140 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-08 18:42:53,140 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [41, 12] total 52 [2024-11-08 18:42:53,140 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1918635975] [2024-11-08 18:42:53,140 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-08 18:42:53,141 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 52 states [2024-11-08 18:42:53,141 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 18:42:53,142 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 52 interpolants. [2024-11-08 18:42:53,143 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=546, Invalid=2106, Unknown=0, NotChecked=0, Total=2652 [2024-11-08 18:42:53,143 INFO L87 Difference]: Start difference. First operand 99 states and 113 transitions. Second operand has 52 states, 52 states have (on average 1.8269230769230769) internal successors, (95), 48 states have internal predecessors, (95), 15 states have call successors, (34), 13 states have call predecessors, (34), 16 states have return successors, (34), 14 states have call predecessors, (34), 15 states have call successors, (34)