./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-95.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6497de01 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8181b5c-227f-4540-8d05-4427059cce06/bin/uautomizer-verify-LYvppIcaGC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8181b5c-227f-4540-8d05-4427059cce06/bin/uautomizer-verify-LYvppIcaGC/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8181b5c-227f-4540-8d05-4427059cce06/bin/uautomizer-verify-LYvppIcaGC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8181b5c-227f-4540-8d05-4427059cce06/bin/uautomizer-verify-LYvppIcaGC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-95.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8181b5c-227f-4540-8d05-4427059cce06/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8181b5c-227f-4540-8d05-4427059cce06/bin/uautomizer-verify-LYvppIcaGC --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 d108156f6bbb1643a63c117926d89d2b1bdfe70b74930503a22a3dbb7e6dc546 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-6497de0 [2024-11-24 01:01:01,311 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-24 01:01:01,396 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8181b5c-227f-4540-8d05-4427059cce06/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-24 01:01:01,410 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-24 01:01:01,410 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-24 01:01:01,437 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-24 01:01:01,437 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-24 01:01:01,438 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-24 01:01:01,438 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-24 01:01:01,438 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-24 01:01:01,438 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-24 01:01:01,439 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-24 01:01:01,439 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-24 01:01:01,439 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-24 01:01:01,439 INFO L153 SettingsManager]: * Use SBE=true [2024-11-24 01:01:01,439 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-24 01:01:01,440 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-24 01:01:01,440 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-24 01:01:01,440 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-24 01:01:01,440 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-24 01:01:01,440 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-24 01:01:01,440 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-24 01:01:01,440 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-24 01:01:01,441 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-24 01:01:01,441 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-24 01:01:01,441 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-24 01:01:01,441 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-24 01:01:01,441 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-24 01:01:01,441 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-24 01:01:01,442 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-24 01:01:01,442 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-24 01:01:01,442 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-24 01:01:01,442 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 01:01:01,442 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-24 01:01:01,442 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-24 01:01:01,442 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-24 01:01:01,443 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-24 01:01:01,443 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 01:01:01,443 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-24 01:01:01,443 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-24 01:01:01,443 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-24 01:01:01,443 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-24 01:01:01,444 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-24 01:01:01,444 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-24 01:01:01,444 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-24 01:01:01,444 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-24 01:01:01,444 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-24 01:01:01,444 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-24 01:01:01,444 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_c8181b5c-227f-4540-8d05-4427059cce06/bin/uautomizer-verify-LYvppIcaGC 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 -> d108156f6bbb1643a63c117926d89d2b1bdfe70b74930503a22a3dbb7e6dc546 [2024-11-24 01:01:01,776 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-24 01:01:01,792 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-24 01:01:01,798 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-24 01:01:01,800 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-24 01:01:01,800 INFO L274 PluginConnector]: CDTParser initialized [2024-11-24 01:01:01,802 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8181b5c-227f-4540-8d05-4427059cce06/bin/uautomizer-verify-LYvppIcaGC/../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-95.i [2024-11-24 01:01:04,892 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8181b5c-227f-4540-8d05-4427059cce06/bin/uautomizer-verify-LYvppIcaGC/data/6c9db86ac/c35d5d5012c746e08bb305961f811202/FLAGa814ed6a0 [2024-11-24 01:01:05,188 INFO L384 CDTParser]: Found 1 translation units. [2024-11-24 01:01:05,189 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8181b5c-227f-4540-8d05-4427059cce06/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-95.i [2024-11-24 01:01:05,196 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8181b5c-227f-4540-8d05-4427059cce06/bin/uautomizer-verify-LYvppIcaGC/data/6c9db86ac/c35d5d5012c746e08bb305961f811202/FLAGa814ed6a0 [2024-11-24 01:01:05,491 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8181b5c-227f-4540-8d05-4427059cce06/bin/uautomizer-verify-LYvppIcaGC/data/6c9db86ac/c35d5d5012c746e08bb305961f811202 [2024-11-24 01:01:05,495 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-24 01:01:05,498 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-24 01:01:05,500 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-24 01:01:05,501 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-24 01:01:05,507 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-24 01:01:05,508 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 01:01:05" (1/1) ... [2024-11-24 01:01:05,509 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5ed01837 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:01:05, skipping insertion in model container [2024-11-24 01:01:05,511 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 01:01:05" (1/1) ... [2024-11-24 01:01:05,537 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-24 01:01:05,751 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_c8181b5c-227f-4540-8d05-4427059cce06/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-95.i[915,928] [2024-11-24 01:01:05,793 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 01:01:05,807 INFO L200 MainTranslator]: Completed pre-run [2024-11-24 01:01:05,819 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_c8181b5c-227f-4540-8d05-4427059cce06/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-95.i[915,928] [2024-11-24 01:01:05,835 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 01:01:05,856 INFO L204 MainTranslator]: Completed translation [2024-11-24 01:01:05,857 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:01:05 WrapperNode [2024-11-24 01:01:05,857 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-24 01:01:05,859 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-24 01:01:05,859 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-24 01:01:05,859 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-24 01:01:05,871 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:01:05" (1/1) ... [2024-11-24 01:01:05,880 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:01:05" (1/1) ... [2024-11-24 01:01:05,904 INFO L138 Inliner]: procedures = 26, calls = 23, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 84 [2024-11-24 01:01:05,905 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-24 01:01:05,906 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-24 01:01:05,906 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-24 01:01:05,906 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-24 01:01:05,918 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:01:05" (1/1) ... [2024-11-24 01:01:05,918 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:01:05" (1/1) ... [2024-11-24 01:01:05,920 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:01:05" (1/1) ... [2024-11-24 01:01:05,933 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]. [2024-11-24 01:01:05,934 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:01:05" (1/1) ... [2024-11-24 01:01:05,934 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:01:05" (1/1) ... [2024-11-24 01:01:05,939 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:01:05" (1/1) ... [2024-11-24 01:01:05,941 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:01:05" (1/1) ... [2024-11-24 01:01:05,944 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:01:05" (1/1) ... [2024-11-24 01:01:05,946 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:01:05" (1/1) ... [2024-11-24 01:01:05,947 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:01:05" (1/1) ... [2024-11-24 01:01:05,949 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-24 01:01:05,950 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-24 01:01:05,950 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-24 01:01:05,950 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-24 01:01:05,952 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:01:05" (1/1) ... [2024-11-24 01:01:05,960 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 01:01:05,975 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8181b5c-227f-4540-8d05-4427059cce06/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:01:05,991 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8181b5c-227f-4540-8d05-4427059cce06/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-24 01:01:05,995 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8181b5c-227f-4540-8d05-4427059cce06/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-24 01:01:06,025 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-24 01:01:06,025 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-24 01:01:06,025 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-24 01:01:06,025 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-24 01:01:06,026 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-24 01:01:06,026 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-24 01:01:06,114 INFO L234 CfgBuilder]: Building ICFG [2024-11-24 01:01:06,117 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-24 01:01:06,390 INFO L? ?]: Removed 8 outVars from TransFormulas that were not future-live. [2024-11-24 01:01:06,390 INFO L283 CfgBuilder]: Performing block encoding [2024-11-24 01:01:06,401 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-24 01:01:06,402 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-24 01:01:06,402 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 01:01:06 BoogieIcfgContainer [2024-11-24 01:01:06,402 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-24 01:01:06,405 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-24 01:01:06,405 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-24 01:01:06,411 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-24 01:01:06,412 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 01:01:05" (1/3) ... [2024-11-24 01:01:06,413 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@87f98ea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 01:01:06, skipping insertion in model container [2024-11-24 01:01:06,414 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:01:05" (2/3) ... [2024-11-24 01:01:06,414 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@87f98ea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 01:01:06, skipping insertion in model container [2024-11-24 01:01:06,415 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 01:01:06" (3/3) ... [2024-11-24 01:01:06,416 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount10_file-95.i [2024-11-24 01:01:06,435 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-24 01:01:06,437 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_operatoramount_amount10_file-95.i that has 2 procedures, 39 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-24 01:01:06,524 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-24 01:01:06,545 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;@1490ff2c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-24 01:01:06,546 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-24 01:01:06,552 INFO L276 IsEmpty]: Start isEmpty. Operand has 39 states, 26 states have (on average 1.2307692307692308) internal successors, (32), 27 states have internal predecessors, (32), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-11-24 01:01:06,563 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-11-24 01:01:06,564 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:01:06,565 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:01:06,566 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:01:06,572 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:01:06,574 INFO L85 PathProgramCache]: Analyzing trace with hash -793982135, now seen corresponding path program 1 times [2024-11-24 01:01:06,583 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:01:06,585 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [140922695] [2024-11-24 01:01:06,585 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:01:06,586 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:01:06,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:01:06,903 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 162 trivial. 0 not checked. [2024-11-24 01:01:06,904 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:01:06,904 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [140922695] [2024-11-24 01:01:06,905 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [140922695] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 01:01:06,905 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1993319880] [2024-11-24 01:01:06,906 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:01:06,906 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:01:06,906 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8181b5c-227f-4540-8d05-4427059cce06/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:01:06,911 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8181b5c-227f-4540-8d05-4427059cce06/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:01:06,914 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8181b5c-227f-4540-8d05-4427059cce06/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-24 01:01:07,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:01:07,102 INFO L256 TraceCheckSpWp]: Trace formula consists of 169 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-24 01:01:07,111 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:01:07,140 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 162 trivial. 0 not checked. [2024-11-24 01:01:07,140 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 01:01:07,140 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1993319880] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:01:07,140 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-24 01:01:07,141 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-24 01:01:07,143 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [411226633] [2024-11-24 01:01:07,143 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:01:07,148 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-24 01:01:07,148 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:01:07,169 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-24 01:01:07,170 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-24 01:01:07,172 INFO L87 Difference]: Start difference. First operand has 39 states, 26 states have (on average 1.2307692307692308) internal successors, (32), 27 states have internal predecessors, (32), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) Second operand has 2 states, 2 states have (on average 12.0) internal successors, (24), 2 states have internal predecessors, (24), 2 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 2 states have call successors, (10) [2024-11-24 01:01:07,194 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:01:07,195 INFO L93 Difference]: Finished difference Result 71 states and 108 transitions. [2024-11-24 01:01:07,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-24 01:01:07,198 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 12.0) internal successors, (24), 2 states have internal predecessors, (24), 2 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 2 states have call successors, (10) Word has length 69 [2024-11-24 01:01:07,198 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:01:07,203 INFO L225 Difference]: With dead ends: 71 [2024-11-24 01:01:07,204 INFO L226 Difference]: Without dead ends: 35 [2024-11-24 01:01:07,207 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 70 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-24 01:01:07,211 INFO L435 NwaCegarLoop]: 45 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, 45 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 [2024-11-24 01:01:07,212 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 01:01:07,243 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2024-11-24 01:01:07,269 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2024-11-24 01:01:07,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 23 states have (on average 1.0869565217391304) internal successors, (25), 23 states have internal predecessors, (25), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-11-24 01:01:07,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 45 transitions. [2024-11-24 01:01:07,284 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 45 transitions. Word has length 69 [2024-11-24 01:01:07,287 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:01:07,287 INFO L471 AbstractCegarLoop]: Abstraction has 35 states and 45 transitions. [2024-11-24 01:01:07,287 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 12.0) internal successors, (24), 2 states have internal predecessors, (24), 2 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 2 states have call successors, (10) [2024-11-24 01:01:07,288 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 45 transitions. [2024-11-24 01:01:07,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-11-24 01:01:07,292 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:01:07,293 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:01:07,305 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8181b5c-227f-4540-8d05-4427059cce06/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-24 01:01:07,497 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8181b5c-227f-4540-8d05-4427059cce06/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:01:07,497 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:01:07,498 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:01:07,498 INFO L85 PathProgramCache]: Analyzing trace with hash -252284867, now seen corresponding path program 1 times [2024-11-24 01:01:07,498 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:01:07,498 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [773718830] [2024-11-24 01:01:07,498 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:01:07,498 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:01:07,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-24 01:01:07,601 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-24 01:01:07,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-24 01:01:07,740 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-24 01:01:07,740 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-11-24 01:01:07,742 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-24 01:01:07,744 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-24 01:01:07,748 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1] [2024-11-24 01:01:07,805 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-24 01:01:07,809 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.11 01:01:07 BoogieIcfgContainer [2024-11-24 01:01:07,809 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-24 01:01:07,810 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-24 01:01:07,810 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-24 01:01:07,810 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-24 01:01:07,811 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 01:01:06" (3/4) ... [2024-11-24 01:01:07,814 INFO L149 WitnessPrinter]: No result that supports witness generation found [2024-11-24 01:01:07,815 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-24 01:01:07,816 INFO L158 Benchmark]: Toolchain (without parser) took 2317.91ms. Allocated memory is still 117.4MB. Free memory was 92.9MB in the beginning and 78.1MB in the end (delta: 14.8MB). Peak memory consumption was 12.9MB. Max. memory is 16.1GB. [2024-11-24 01:01:07,816 INFO L158 Benchmark]: CDTParser took 0.41ms. Allocated memory is still 117.4MB. Free memory is still 74.5MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-24 01:01:07,816 INFO L158 Benchmark]: CACSL2BoogieTranslator took 357.65ms. Allocated memory is still 117.4MB. Free memory was 92.7MB in the beginning and 80.8MB in the end (delta: 11.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-24 01:01:07,817 INFO L158 Benchmark]: Boogie Procedure Inliner took 46.44ms. Allocated memory is still 117.4MB. Free memory was 80.8MB in the beginning and 79.4MB in the end (delta: 1.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-24 01:01:07,817 INFO L158 Benchmark]: Boogie Preprocessor took 43.66ms. Allocated memory is still 117.4MB. Free memory was 79.4MB in the beginning and 77.7MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-24 01:01:07,818 INFO L158 Benchmark]: RCFGBuilder took 452.69ms. Allocated memory is still 117.4MB. Free memory was 77.7MB in the beginning and 66.3MB in the end (delta: 11.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-24 01:01:07,818 INFO L158 Benchmark]: TraceAbstraction took 1403.99ms. Allocated memory is still 117.4MB. Free memory was 65.8MB in the beginning and 78.1MB in the end (delta: -12.3MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-24 01:01:07,818 INFO L158 Benchmark]: Witness Printer took 5.16ms. Allocated memory is still 117.4MB. Free memory was 78.1MB in the beginning and 78.1MB in the end (delta: 21.1kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-24 01:01:07,820 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.41ms. Allocated memory is still 117.4MB. Free memory is still 74.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 357.65ms. Allocated memory is still 117.4MB. Free memory was 92.7MB in the beginning and 80.8MB in the end (delta: 11.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 46.44ms. Allocated memory is still 117.4MB. Free memory was 80.8MB in the beginning and 79.4MB in the end (delta: 1.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 43.66ms. Allocated memory is still 117.4MB. Free memory was 79.4MB in the beginning and 77.7MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 452.69ms. Allocated memory is still 117.4MB. Free memory was 77.7MB in the beginning and 66.3MB in the end (delta: 11.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 1403.99ms. Allocated memory is still 117.4MB. Free memory was 65.8MB in the beginning and 78.1MB in the end (delta: -12.3MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 5.16ms. Allocated memory is still 117.4MB. Free memory was 78.1MB in the beginning and 78.1MB in the end (delta: 21.1kB). 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 46, overapproximation of someBinaryDOUBLEComparisonOperation at line 56, overapproximation of someBinaryDOUBLEComparisonOperation at line 36, overapproximation of someBinaryDOUBLEComparisonOperation at line 52, overapproximation of someBinaryDOUBLEComparisonOperation at line 54, overapproximation of someBinaryDOUBLEComparisonOperation at line 48, overapproximation of someBinaryDOUBLEComparisonOperation at line 50, overapproximation of someBinaryDOUBLEComparisonOperation at line 67. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] double var_1_1 = 24.5; [L23] double var_1_2 = 9.4; [L24] double var_1_3 = 7.8; [L25] double var_1_4 = 127.84; [L26] double var_1_5 = 999999999.5; [L27] double var_1_6 = 0.0; [L28] double var_1_7 = 9999999.8; [L29] unsigned short int var_1_8 = 10; [L30] unsigned short int var_1_9 = 5; [L31] signed char var_1_10 = 4; [L32] signed char var_1_11 = -16; VAL [isInitial=0, var_1_10=4, var_1_11=-16, var_1_1=49/2, var_1_2=47/5, var_1_3=39/5, var_1_4=3196/25, var_1_5=1999999999/2, var_1_6=0, var_1_7=49999999/5, var_1_8=10, var_1_9=5] [L71] isInitial = 1 [L72] FCALL initially() [L74] FCALL updateLastVariables() [L75] CALL updateVariables() [L45] var_1_2 = __VERIFIER_nondet_double() [L46] CALL assume_abort_if_not((var_1_2 >= -922337.2036854776000e+13F && var_1_2 <= -1.0e-20F) || (var_1_2 <= 9223372.036854776000e+12F && var_1_2 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_10=4, var_1_11=-16, var_1_1=49/2, var_1_3=39/5, var_1_4=3196/25, var_1_5=1999999999/2, var_1_6=0, var_1_7=49999999/5, var_1_8=10, var_1_9=5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=4, var_1_11=-16, var_1_1=49/2, var_1_3=39/5, var_1_4=3196/25, var_1_5=1999999999/2, var_1_6=0, var_1_7=49999999/5, var_1_8=10, var_1_9=5] [L46] RET assume_abort_if_not((var_1_2 >= -922337.2036854776000e+13F && var_1_2 <= -1.0e-20F) || (var_1_2 <= 9223372.036854776000e+12F && var_1_2 >= 1.0e-20F )) VAL [isInitial=1, var_1_10=4, var_1_11=-16, var_1_1=49/2, var_1_3=39/5, var_1_4=3196/25, var_1_5=1999999999/2, var_1_6=0, var_1_7=49999999/5, var_1_8=10, var_1_9=5] [L47] var_1_3 = __VERIFIER_nondet_double() [L48] CALL assume_abort_if_not((var_1_3 >= 0.0F && var_1_3 <= -1.0e-20F) || (var_1_3 <= 9223372.036854776000e+12F && var_1_3 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_10=4, var_1_11=-16, var_1_1=49/2, var_1_4=3196/25, var_1_5=1999999999/2, var_1_6=0, var_1_7=49999999/5, var_1_8=10, var_1_9=5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=4, var_1_11=-16, var_1_1=49/2, var_1_4=3196/25, var_1_5=1999999999/2, var_1_6=0, var_1_7=49999999/5, var_1_8=10, var_1_9=5] [L48] RET assume_abort_if_not((var_1_3 >= 0.0F && var_1_3 <= -1.0e-20F) || (var_1_3 <= 9223372.036854776000e+12F && var_1_3 >= 1.0e-20F )) VAL [isInitial=1, var_1_10=4, var_1_11=-16, var_1_1=49/2, var_1_4=3196/25, var_1_5=1999999999/2, var_1_6=0, var_1_7=49999999/5, var_1_8=10, var_1_9=5] [L49] var_1_4 = __VERIFIER_nondet_double() [L50] CALL assume_abort_if_not((var_1_4 >= -922337.2036854765600e+13F && var_1_4 <= -1.0e-20F) || (var_1_4 <= 9223372.036854765600e+12F && var_1_4 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_10=4, var_1_11=-16, var_1_1=49/2, var_1_5=1999999999/2, var_1_6=0, var_1_7=49999999/5, var_1_8=10, var_1_9=5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=4, var_1_11=-16, var_1_1=49/2, var_1_5=1999999999/2, var_1_6=0, var_1_7=49999999/5, var_1_8=10, var_1_9=5] [L50] RET assume_abort_if_not((var_1_4 >= -922337.2036854765600e+13F && var_1_4 <= -1.0e-20F) || (var_1_4 <= 9223372.036854765600e+12F && var_1_4 >= 1.0e-20F )) VAL [isInitial=1, var_1_10=4, var_1_11=-16, var_1_1=49/2, var_1_5=1999999999/2, var_1_6=0, var_1_7=49999999/5, var_1_8=10, var_1_9=5] [L51] var_1_5 = __VERIFIER_nondet_double() [L52] CALL assume_abort_if_not((var_1_5 >= -922337.2036854765600e+13F && var_1_5 <= -1.0e-20F) || (var_1_5 <= 9223372.036854765600e+12F && var_1_5 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_10=4, var_1_11=-16, var_1_1=49/2, var_1_6=0, var_1_7=49999999/5, var_1_8=10, var_1_9=5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=4, var_1_11=-16, var_1_1=49/2, var_1_6=0, var_1_7=49999999/5, var_1_8=10, var_1_9=5] [L52] RET assume_abort_if_not((var_1_5 >= -922337.2036854765600e+13F && var_1_5 <= -1.0e-20F) || (var_1_5 <= 9223372.036854765600e+12F && var_1_5 >= 1.0e-20F )) VAL [isInitial=1, var_1_10=4, var_1_11=-16, var_1_1=49/2, var_1_6=0, var_1_7=49999999/5, var_1_8=10, var_1_9=5] [L53] var_1_6 = __VERIFIER_nondet_double() [L54] CALL assume_abort_if_not((var_1_6 >= 4611686.018427382800e+12F && var_1_6 <= -1.0e-20F) || (var_1_6 <= 9223372.036854765600e+12F && var_1_6 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_10=4, var_1_11=-16, var_1_1=49/2, var_1_7=49999999/5, var_1_8=10, var_1_9=5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=4, var_1_11=-16, var_1_1=49/2, var_1_7=49999999/5, var_1_8=10, var_1_9=5] [L54] RET assume_abort_if_not((var_1_6 >= 4611686.018427382800e+12F && var_1_6 <= -1.0e-20F) || (var_1_6 <= 9223372.036854765600e+12F && var_1_6 >= 1.0e-20F )) VAL [isInitial=1, var_1_10=4, var_1_11=-16, var_1_1=49/2, var_1_7=49999999/5, var_1_8=10, var_1_9=5] [L55] var_1_7 = __VERIFIER_nondet_double() [L56] CALL assume_abort_if_not((var_1_7 >= 0.0F && var_1_7 <= -1.0e-20F) || (var_1_7 <= 4611686.018427382800e+12F && var_1_7 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_10=4, var_1_11=-16, var_1_1=49/2, var_1_8=10, var_1_9=5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=4, var_1_11=-16, var_1_1=49/2, var_1_8=10, var_1_9=5] [L56] RET assume_abort_if_not((var_1_7 >= 0.0F && var_1_7 <= -1.0e-20F) || (var_1_7 <= 4611686.018427382800e+12F && var_1_7 >= 1.0e-20F )) VAL [isInitial=1, var_1_10=4, var_1_11=-16, var_1_1=49/2, var_1_8=10, var_1_9=5] [L57] var_1_9 = __VERIFIER_nondet_ushort() [L58] CALL assume_abort_if_not(var_1_9 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=4, var_1_11=-16, var_1_1=49/2, var_1_8=10] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=4, var_1_11=-16, var_1_1=49/2, var_1_8=10] [L58] RET assume_abort_if_not(var_1_9 >= 0) VAL [isInitial=1, var_1_10=4, var_1_11=-16, var_1_1=49/2, var_1_8=10] [L59] CALL assume_abort_if_not(var_1_9 <= 65534) VAL [\old(cond)=1, isInitial=1, var_1_10=4, var_1_11=-16, var_1_1=49/2, var_1_8=10, var_1_9=-2] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=4, var_1_11=-16, var_1_1=49/2, var_1_8=10, var_1_9=-2] [L59] RET assume_abort_if_not(var_1_9 <= 65534) VAL [isInitial=1, var_1_10=4, var_1_11=-16, var_1_1=49/2, var_1_8=10, var_1_9=-2] [L60] var_1_11 = __VERIFIER_nondet_char() [L61] CALL assume_abort_if_not(var_1_11 >= -127) VAL [\old(cond)=1, isInitial=1, var_1_10=4, var_1_11=126, var_1_1=49/2, var_1_8=10, var_1_9=-2] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=4, var_1_11=126, var_1_1=49/2, var_1_8=10, var_1_9=-2] [L61] RET assume_abort_if_not(var_1_11 >= -127) VAL [isInitial=1, var_1_10=4, var_1_11=126, var_1_1=49/2, var_1_8=10, var_1_9=-2] [L62] CALL assume_abort_if_not(var_1_11 <= 126) VAL [\old(cond)=1, isInitial=1, var_1_10=4, var_1_11=126, var_1_1=49/2, var_1_8=10, var_1_9=-2] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=4, var_1_11=126, var_1_1=49/2, var_1_8=10, var_1_9=-2] [L62] RET assume_abort_if_not(var_1_11 <= 126) VAL [isInitial=1, var_1_10=4, var_1_11=126, var_1_1=49/2, var_1_8=10, var_1_9=-2] [L75] RET updateVariables() [L76] CALL step() [L36] COND TRUE var_1_2 < (var_1_3 - 9.108) [L37] var_1_1 = ((((var_1_4) > (var_1_5)) ? (var_1_4) : (var_1_5))) VAL [isInitial=1, var_1_10=4, var_1_11=126, var_1_1=1000000004, var_1_4=1000000004, var_1_5=1000000004, var_1_8=10, var_1_9=-2] [L41] var_1_8 = var_1_9 [L42] var_1_10 = var_1_11 VAL [isInitial=1, var_1_10=126, var_1_11=126, var_1_1=1000000004, var_1_4=1000000004, var_1_5=1000000004, var_1_8=-2, var_1_9=-2] [L76] RET step() [L77] CALL, EXPR property() [L67-L68] return (((var_1_2 < (var_1_3 - 9.108)) ? (var_1_1 == ((double) ((((var_1_4) > (var_1_5)) ? (var_1_4) : (var_1_5))))) : (var_1_1 == ((double) ((var_1_6 - var_1_7) - 32.925)))) && (var_1_8 == ((unsigned short int) var_1_9))) && (var_1_10 == ((signed char) var_1_11)) ; VAL [\result=0, isInitial=1, var_1_10=126, var_1_11=126, var_1_1=1000000004, var_1_4=1000000004, var_1_5=1000000004, var_1_8=-2, var_1_9=-2] [L77] RET, EXPR property() [L77] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [isInitial=1, var_1_10=126, var_1_11=126, var_1_1=1000000004, var_1_4=1000000004, var_1_5=1000000004, var_1_8=-2, var_1_9=-2] [L19] reach_error() VAL [isInitial=1, var_1_10=126, var_1_11=126, var_1_1=1000000004, var_1_4=1000000004, var_1_5=1000000004, var_1_8=-2, var_1_9=-2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 39 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.3s, OverallIterations: 2, TraceHistogramMax: 10, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 45 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 0 IncrementalHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 45 mSDtfsCounter, 0 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 70 GetRequests, 70 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=39occurred in iteration=0, InterpolantAutomatonStates: 2, 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, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 207 NumberOfCodeBlocks, 207 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 136 ConstructedInterpolants, 0 QuantifiedInterpolants, 136 SizeOfPredicates, 0 NumberOfNonLiveVariables, 169 ConjunctsInSsa, 1 ConjunctsInUnsatCore, 2 InterpolantComputations, 1 PerfectInterpolantSequences, 342/360 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, ConComCheckerStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-11-24 01:01:07,839 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8181b5c-227f-4540-8d05-4427059cce06/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8181b5c-227f-4540-8d05-4427059cce06/bin/uautomizer-verify-LYvppIcaGC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8181b5c-227f-4540-8d05-4427059cce06/bin/uautomizer-verify-LYvppIcaGC/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8181b5c-227f-4540-8d05-4427059cce06/bin/uautomizer-verify-LYvppIcaGC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8181b5c-227f-4540-8d05-4427059cce06/bin/uautomizer-verify-LYvppIcaGC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-95.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8181b5c-227f-4540-8d05-4427059cce06/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8181b5c-227f-4540-8d05-4427059cce06/bin/uautomizer-verify-LYvppIcaGC --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 d108156f6bbb1643a63c117926d89d2b1bdfe70b74930503a22a3dbb7e6dc546 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-6497de0 [2024-11-24 01:01:10,681 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-24 01:01:10,755 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8181b5c-227f-4540-8d05-4427059cce06/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-11-24 01:01:10,762 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-24 01:01:10,762 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-24 01:01:10,821 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-24 01:01:10,822 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-24 01:01:10,822 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-24 01:01:10,822 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-24 01:01:10,822 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-24 01:01:10,823 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-24 01:01:10,823 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-24 01:01:10,823 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-24 01:01:10,823 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-24 01:01:10,823 INFO L153 SettingsManager]: * Use SBE=true [2024-11-24 01:01:10,824 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-24 01:01:10,824 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-24 01:01:10,824 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-24 01:01:10,824 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-24 01:01:10,824 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-24 01:01:10,824 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-24 01:01:10,824 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-24 01:01:10,825 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-24 01:01:10,825 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-24 01:01:10,825 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-24 01:01:10,825 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-24 01:01:10,825 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-24 01:01:10,825 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-24 01:01:10,825 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-24 01:01:10,826 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-24 01:01:10,826 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-24 01:01:10,826 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-24 01:01:10,826 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-24 01:01:10,826 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-24 01:01:10,826 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 01:01:10,826 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-24 01:01:10,827 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-24 01:01:10,827 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-24 01:01:10,827 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-24 01:01:10,827 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 01:01:10,827 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-24 01:01:10,827 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-24 01:01:10,827 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-24 01:01:10,828 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-24 01:01:10,828 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2024-11-24 01:01:10,828 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-24 01:01:10,828 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-24 01:01:10,828 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-24 01:01:10,828 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-24 01:01:10,829 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-24 01:01:10,829 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_c8181b5c-227f-4540-8d05-4427059cce06/bin/uautomizer-verify-LYvppIcaGC 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 -> d108156f6bbb1643a63c117926d89d2b1bdfe70b74930503a22a3dbb7e6dc546 [2024-11-24 01:01:11,207 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-24 01:01:11,221 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-24 01:01:11,225 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-24 01:01:11,227 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-24 01:01:11,227 INFO L274 PluginConnector]: CDTParser initialized [2024-11-24 01:01:11,230 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8181b5c-227f-4540-8d05-4427059cce06/bin/uautomizer-verify-LYvppIcaGC/../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-95.i [2024-11-24 01:01:14,320 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8181b5c-227f-4540-8d05-4427059cce06/bin/uautomizer-verify-LYvppIcaGC/data/9cfa6c4ed/90f1b8bc5e134cf4bd045f900ddb97f6/FLAG4cae1fc62 [2024-11-24 01:01:14,626 INFO L384 CDTParser]: Found 1 translation units. [2024-11-24 01:01:14,627 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8181b5c-227f-4540-8d05-4427059cce06/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-95.i [2024-11-24 01:01:14,650 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8181b5c-227f-4540-8d05-4427059cce06/bin/uautomizer-verify-LYvppIcaGC/data/9cfa6c4ed/90f1b8bc5e134cf4bd045f900ddb97f6/FLAG4cae1fc62 [2024-11-24 01:01:14,695 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8181b5c-227f-4540-8d05-4427059cce06/bin/uautomizer-verify-LYvppIcaGC/data/9cfa6c4ed/90f1b8bc5e134cf4bd045f900ddb97f6 [2024-11-24 01:01:14,702 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-24 01:01:14,703 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-24 01:01:14,705 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-24 01:01:14,707 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-24 01:01:14,712 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-24 01:01:14,712 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 01:01:14" (1/1) ... [2024-11-24 01:01:14,713 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@58ad76de and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:01:14, skipping insertion in model container [2024-11-24 01:01:14,714 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 01:01:14" (1/1) ... [2024-11-24 01:01:14,734 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-24 01:01:14,923 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_c8181b5c-227f-4540-8d05-4427059cce06/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-95.i[915,928] [2024-11-24 01:01:14,987 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 01:01:15,013 INFO L200 MainTranslator]: Completed pre-run [2024-11-24 01:01:15,028 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_c8181b5c-227f-4540-8d05-4427059cce06/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-95.i[915,928] [2024-11-24 01:01:15,057 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 01:01:15,079 INFO L204 MainTranslator]: Completed translation [2024-11-24 01:01:15,079 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:01:15 WrapperNode [2024-11-24 01:01:15,080 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-24 01:01:15,081 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-24 01:01:15,082 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-24 01:01:15,082 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-24 01:01:15,092 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:01:15" (1/1) ... [2024-11-24 01:01:15,107 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:01:15" (1/1) ... [2024-11-24 01:01:15,135 INFO L138 Inliner]: procedures = 27, calls = 23, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 83 [2024-11-24 01:01:15,136 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-24 01:01:15,136 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-24 01:01:15,136 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-24 01:01:15,139 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-24 01:01:15,148 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:01:15" (1/1) ... [2024-11-24 01:01:15,149 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:01:15" (1/1) ... [2024-11-24 01:01:15,152 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:01:15" (1/1) ... [2024-11-24 01:01:15,163 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]. [2024-11-24 01:01:15,164 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:01:15" (1/1) ... [2024-11-24 01:01:15,164 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:01:15" (1/1) ... [2024-11-24 01:01:15,171 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:01:15" (1/1) ... [2024-11-24 01:01:15,172 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:01:15" (1/1) ... [2024-11-24 01:01:15,176 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:01:15" (1/1) ... [2024-11-24 01:01:15,178 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:01:15" (1/1) ... [2024-11-24 01:01:15,179 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:01:15" (1/1) ... [2024-11-24 01:01:15,181 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-24 01:01:15,182 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-24 01:01:15,183 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-24 01:01:15,183 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-24 01:01:15,184 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:01:15" (1/1) ... [2024-11-24 01:01:15,190 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 01:01:15,208 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8181b5c-227f-4540-8d05-4427059cce06/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:01:15,222 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8181b5c-227f-4540-8d05-4427059cce06/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-24 01:01:15,225 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8181b5c-227f-4540-8d05-4427059cce06/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-24 01:01:15,258 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-24 01:01:15,259 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-24 01:01:15,259 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-24 01:01:15,259 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-24 01:01:15,259 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-24 01:01:15,259 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-24 01:01:15,334 INFO L234 CfgBuilder]: Building ICFG [2024-11-24 01:01:15,336 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-24 01:01:19,590 INFO L? ?]: Removed 8 outVars from TransFormulas that were not future-live. [2024-11-24 01:01:19,591 INFO L283 CfgBuilder]: Performing block encoding [2024-11-24 01:01:19,604 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-24 01:01:19,604 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-24 01:01:19,605 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 01:01:19 BoogieIcfgContainer [2024-11-24 01:01:19,605 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-24 01:01:19,607 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-24 01:01:19,607 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-24 01:01:19,612 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-24 01:01:19,613 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 01:01:14" (1/3) ... [2024-11-24 01:01:19,614 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@15a39eb2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 01:01:19, skipping insertion in model container [2024-11-24 01:01:19,615 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:01:15" (2/3) ... [2024-11-24 01:01:19,617 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@15a39eb2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 01:01:19, skipping insertion in model container [2024-11-24 01:01:19,617 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 01:01:19" (3/3) ... [2024-11-24 01:01:19,619 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount10_file-95.i [2024-11-24 01:01:19,635 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-24 01:01:19,637 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_operatoramount_amount10_file-95.i that has 2 procedures, 39 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-24 01:01:19,695 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-24 01:01:19,708 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;@2f21bfb3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-24 01:01:19,708 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-24 01:01:19,712 INFO L276 IsEmpty]: Start isEmpty. Operand has 39 states, 26 states have (on average 1.2307692307692308) internal successors, (32), 27 states have internal predecessors, (32), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-11-24 01:01:19,724 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-11-24 01:01:19,725 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:01:19,726 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:01:19,726 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:01:19,731 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:01:19,731 INFO L85 PathProgramCache]: Analyzing trace with hash -793982135, now seen corresponding path program 1 times [2024-11-24 01:01:19,740 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-24 01:01:19,741 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [938720837] [2024-11-24 01:01:19,741 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:01:19,741 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 [2024-11-24 01:01:19,742 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8181b5c-227f-4540-8d05-4427059cce06/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-24 01:01:19,744 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8181b5c-227f-4540-8d05-4427059cce06/bin/uautomizer-verify-LYvppIcaGC/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) [2024-11-24 01:01:19,746 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8181b5c-227f-4540-8d05-4427059cce06/bin/uautomizer-verify-LYvppIcaGC/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 [2024-11-24 01:01:20,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:01:20,115 INFO L256 TraceCheckSpWp]: Trace formula consists of 117 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-24 01:01:20,122 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:01:20,161 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 50 proven. 0 refuted. 0 times theorem prover too weak. 130 trivial. 0 not checked. [2024-11-24 01:01:20,165 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 01:01:20,166 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-24 01:01:20,166 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [938720837] [2024-11-24 01:01:20,167 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [938720837] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:01:20,167 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:01:20,167 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-24 01:01:20,172 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [432533742] [2024-11-24 01:01:20,173 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:01:20,176 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-24 01:01:20,176 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-24 01:01:20,195 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-24 01:01:20,195 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-24 01:01:20,197 INFO L87 Difference]: Start difference. First operand has 39 states, 26 states have (on average 1.2307692307692308) internal successors, (32), 27 states have internal predecessors, (32), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) Second operand has 2 states, 2 states have (on average 13.0) internal successors, (26), 2 states have internal predecessors, (26), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-11-24 01:01:20,219 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:01:20,219 INFO L93 Difference]: Finished difference Result 71 states and 108 transitions. [2024-11-24 01:01:20,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-24 01:01:20,222 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 13.0) internal successors, (26), 2 states have internal predecessors, (26), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 69 [2024-11-24 01:01:20,222 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:01:20,228 INFO L225 Difference]: With dead ends: 71 [2024-11-24 01:01:20,228 INFO L226 Difference]: Without dead ends: 35 [2024-11-24 01:01:20,232 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 68 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-24 01:01:20,236 INFO L435 NwaCegarLoop]: 45 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, 45 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 [2024-11-24 01:01:20,239 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 01:01:20,254 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2024-11-24 01:01:20,273 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2024-11-24 01:01:20,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 23 states have (on average 1.0869565217391304) internal successors, (25), 23 states have internal predecessors, (25), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-11-24 01:01:20,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 45 transitions. [2024-11-24 01:01:20,285 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 45 transitions. Word has length 69 [2024-11-24 01:01:20,285 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:01:20,286 INFO L471 AbstractCegarLoop]: Abstraction has 35 states and 45 transitions. [2024-11-24 01:01:20,286 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 13.0) internal successors, (26), 2 states have internal predecessors, (26), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-11-24 01:01:20,286 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 45 transitions. [2024-11-24 01:01:20,288 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-11-24 01:01:20,288 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:01:20,289 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:01:20,299 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8181b5c-227f-4540-8d05-4427059cce06/bin/uautomizer-verify-LYvppIcaGC/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 [2024-11-24 01:01:20,489 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8181b5c-227f-4540-8d05-4427059cce06/bin/uautomizer-verify-LYvppIcaGC/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 [2024-11-24 01:01:20,490 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:01:20,490 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:01:20,490 INFO L85 PathProgramCache]: Analyzing trace with hash -252284867, now seen corresponding path program 1 times [2024-11-24 01:01:20,491 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-24 01:01:20,491 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1262107973] [2024-11-24 01:01:20,491 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:01:20,491 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 [2024-11-24 01:01:20,491 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8181b5c-227f-4540-8d05-4427059cce06/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-24 01:01:20,493 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8181b5c-227f-4540-8d05-4427059cce06/bin/uautomizer-verify-LYvppIcaGC/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) [2024-11-24 01:01:20,495 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8181b5c-227f-4540-8d05-4427059cce06/bin/uautomizer-verify-LYvppIcaGC/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 [2024-11-24 01:01:20,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:01:20,876 INFO L256 TraceCheckSpWp]: Trace formula consists of 117 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-24 01:01:20,885 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:03:32,406 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 78 proven. 36 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2024-11-24 01:03:32,406 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 01:06:27,113 WARN L286 SmtUtils]: Spent 1.20m on a formula simplification that was a NOOP. DAG size: 59 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-24 01:06:55,142 WARN L286 SmtUtils]: Spent 5.60s on a formula simplification that was a NOOP. DAG size: 9 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-24 01:07:00,989 WARN L286 SmtUtils]: Spent 5.37s on a formula simplification that was a NOOP. DAG size: 9 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-24 01:07:06,520 WARN L286 SmtUtils]: Spent 5.18s on a formula simplification that was a NOOP. DAG size: 9 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-24 01:07:11,807 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse4 (fp.gt c_~var_1_4~0 c_~var_1_5~0))) (let ((.cse8 (not .cse4)) (.cse9 (forall ((~var_1_7~0 (_ FloatingPoint 11 53)) (~var_1_6~0 (_ FloatingPoint 11 53))) (fp.eq c_~var_1_1~0 (fp.sub c_currentRoundingMode (fp.sub c_currentRoundingMode ~var_1_6~0 ~var_1_7~0) ((_ to_fp 11 53) c_currentRoundingMode (/ 1317.0 40.0))))))) (let ((.cse1 (and (or .cse8 .cse9) (or .cse4 .cse9))) (.cse5 (fp.eq c_~var_1_1~0 c_~var_1_4~0)) (.cse3 (fp.lt c_~var_1_2~0 (fp.sub c_currentRoundingMode c_~var_1_3~0 ((_ to_fp 11 53) c_currentRoundingMode (/ 2277.0 250.0)))))) (let ((.cse7 (fp.eq c_~var_1_1~0 c_~var_1_5~0)) (.cse6 (not .cse3)) (.cse2 (not .cse5)) (.cse0 (or .cse1 .cse5))) (and (or (and (or (and .cse0 (or .cse1 .cse2)) .cse3) (or (and .cse4 .cse5) .cse6)) .cse7) (or (not .cse7) (and (or .cse8 .cse6) (or (and (or .cse9 .cse2) .cse0) .cse3)))))))) is different from false [2024-11-24 01:07:28,411 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-24 01:07:28,411 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1262107973] [2024-11-24 01:07:28,411 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1262107973] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 01:07:28,411 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [434919104] [2024-11-24 01:07:28,411 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:07:28,412 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-24 01:07:28,412 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8181b5c-227f-4540-8d05-4427059cce06/bin/uautomizer-verify-LYvppIcaGC/cvc4 [2024-11-24 01:07:28,416 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8181b5c-227f-4540-8d05-4427059cce06/bin/uautomizer-verify-LYvppIcaGC/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-24 01:07:28,418 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8181b5c-227f-4540-8d05-4427059cce06/bin/uautomizer-verify-LYvppIcaGC/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2024-11-24 01:07:29,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:07:30,024 INFO L256 TraceCheckSpWp]: Trace formula consists of 117 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-24 01:07:30,029 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:08:33,979 WARN L286 SmtUtils]: Spent 5.26s on a formula simplification that was a NOOP. DAG size: 9 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-24 01:08:46,166 WARN L286 SmtUtils]: Spent 5.92s on a formula simplification that was a NOOP. DAG size: 9 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-24 01:08:52,340 WARN L286 SmtUtils]: Spent 6.17s on a formula simplification that was a NOOP. DAG size: 10 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-24 01:09:08,848 WARN L286 SmtUtils]: Spent 6.28s on a formula simplification that was a NOOP. DAG size: 10 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-24 01:09:39,354 WARN L286 SmtUtils]: Spent 6.10s on a formula simplification that was a NOOP. DAG size: 10 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-24 01:09:46,179 WARN L286 SmtUtils]: Spent 6.53s on a formula simplification that was a NOOP. DAG size: 9 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-24 01:10:08,860 WARN L286 SmtUtils]: Spent 5.01s on a formula simplification that was a NOOP. DAG size: 6 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-24 01:10:23,469 WARN L286 SmtUtils]: Spent 5.41s on a formula simplification that was a NOOP. DAG size: 9 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-24 01:10:29,586 WARN L286 SmtUtils]: Spent 6.12s on a formula simplification that was a NOOP. DAG size: 6 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-24 01:10:44,726 WARN L286 SmtUtils]: Spent 6.92s on a formula simplification that was a NOOP. DAG size: 10 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-24 01:11:13,660 WARN L286 SmtUtils]: Spent 5.58s on a formula simplification that was a NOOP. DAG size: 10 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-24 01:11:45,575 WARN L286 SmtUtils]: Spent 5.66s on a formula simplification that was a NOOP. DAG size: 6 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-24 01:11:52,801 WARN L286 SmtUtils]: Spent 6.89s on a formula simplification that was a NOOP. DAG size: 7 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-24 01:12:10,919 WARN L286 SmtUtils]: Spent 5.46s on a formula simplification that was a NOOP. DAG size: 9 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-24 01:12:51,996 WARN L286 SmtUtils]: Spent 5.03s on a formula simplification that was a NOOP. DAG size: 9 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-24 01:13:36,274 WARN L286 SmtUtils]: Spent 5.07s on a formula simplification that was a NOOP. DAG size: 7 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-24 01:13:41,862 WARN L286 SmtUtils]: Spent 5.59s on a formula simplification that was a NOOP. DAG size: 7 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-24 01:13:48,076 WARN L286 SmtUtils]: Spent 6.21s on a formula simplification that was a NOOP. DAG size: 7 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-24 01:13:56,647 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 87 proven. 18 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2024-11-24 01:13:56,647 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 01:14:03,742 WARN L286 SmtUtils]: Spent 6.20s on a formula simplification that was a NOOP. DAG size: 9 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-24 01:14:10,275 WARN L286 SmtUtils]: Spent 5.62s on a formula simplification that was a NOOP. DAG size: 9 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-24 01:14:18,173 WARN L286 SmtUtils]: Spent 6.57s on a formula simplification that was a NOOP. DAG size: 9 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-24 01:14:25,539 WARN L286 SmtUtils]: Spent 6.45s on a formula simplification that was a NOOP. DAG size: 9 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-24 01:14:55,854 WARN L286 SmtUtils]: Spent 7.39s on a formula simplification that was a NOOP. DAG size: 9 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-24 01:15:06,859 WARN L286 SmtUtils]: Spent 5.56s on a formula simplification that was a NOOP. DAG size: 9 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-24 01:15:12,836 WARN L286 SmtUtils]: Spent 5.76s on a formula simplification that was a NOOP. DAG size: 9 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-24 01:15:21,482 WARN L286 SmtUtils]: Spent 5.52s on a formula simplification that was a NOOP. DAG size: 9 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-24 01:15:27,643 WARN L286 SmtUtils]: Spent 5.70s on a formula simplification that was a NOOP. DAG size: 9 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-24 01:15:33,818 WARN L286 SmtUtils]: Spent 6.01s on a formula simplification that was a NOOP. DAG size: 9 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-24 01:15:36,644 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [434919104] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 01:15:36,644 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-24 01:15:36,644 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 9] total 18 [2024-11-24 01:15:36,645 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [191660488] [2024-11-24 01:15:36,645 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-24 01:15:36,646 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-24 01:15:36,646 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-24 01:15:36,647 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-24 01:15:36,648 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=84, Invalid=372, Unknown=10, NotChecked=40, Total=506 [2024-11-24 01:15:36,648 INFO L87 Difference]: Start difference. First operand 35 states and 45 transitions. Second operand has 18 states, 18 states have (on average 3.111111111111111) internal successors, (56), 18 states have internal predecessors, (56), 5 states have call successors, (20), 5 states have call predecessors, (20), 7 states have return successors, (20), 5 states have call predecessors, (20), 5 states have call successors, (20) [2024-11-24 01:16:25,854 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.64s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-24 01:16:28,508 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.57s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []