./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-83.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_6b789ee6-db6b-4943-a41a-593b41c82e06/bin/uautomizer-verify-LYvppIcaGC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b789ee6-db6b-4943-a41a-593b41c82e06/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_6b789ee6-db6b-4943-a41a-593b41c82e06/bin/uautomizer-verify-LYvppIcaGC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b789ee6-db6b-4943-a41a-593b41c82e06/bin/uautomizer-verify-LYvppIcaGC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-83.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b789ee6-db6b-4943-a41a-593b41c82e06/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_6b789ee6-db6b-4943-a41a-593b41c82e06/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 9f9164e1a34b1b6bc15e6d6c10636cd9af69b42bd441271521d7273f80c38ea6 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-6497de0 [2024-11-24 02:02:31,940 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-24 02:02:32,026 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b789ee6-db6b-4943-a41a-593b41c82e06/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-24 02:02:32,032 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-24 02:02:32,032 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-24 02:02:32,055 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-24 02:02:32,056 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-24 02:02:32,056 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-24 02:02:32,056 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-24 02:02:32,057 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-24 02:02:32,057 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-24 02:02:32,057 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-24 02:02:32,057 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-24 02:02:32,057 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-24 02:02:32,058 INFO L153 SettingsManager]: * Use SBE=true [2024-11-24 02:02:32,058 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-24 02:02:32,058 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-24 02:02:32,058 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-24 02:02:32,058 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-24 02:02:32,058 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-24 02:02:32,058 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-24 02:02:32,058 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-24 02:02:32,059 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-24 02:02:32,059 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-24 02:02:32,059 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-24 02:02:32,059 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-24 02:02:32,059 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-24 02:02:32,059 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-24 02:02:32,059 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-24 02:02:32,059 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-24 02:02:32,059 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-24 02:02:32,059 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-24 02:02:32,060 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 02:02:32,060 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-24 02:02:32,060 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-24 02:02:32,060 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-24 02:02:32,060 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-24 02:02:32,060 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 02:02:32,060 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-24 02:02:32,060 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-24 02:02:32,061 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-24 02:02:32,061 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-24 02:02:32,062 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-24 02:02:32,063 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-24 02:02:32,063 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-24 02:02:32,063 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-24 02:02:32,063 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-24 02:02:32,063 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-24 02:02:32,063 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_6b789ee6-db6b-4943-a41a-593b41c82e06/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 -> 9f9164e1a34b1b6bc15e6d6c10636cd9af69b42bd441271521d7273f80c38ea6 [2024-11-24 02:02:32,348 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-24 02:02:32,360 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-24 02:02:32,363 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-24 02:02:32,364 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-24 02:02:32,365 INFO L274 PluginConnector]: CDTParser initialized [2024-11-24 02:02:32,366 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b789ee6-db6b-4943-a41a-593b41c82e06/bin/uautomizer-verify-LYvppIcaGC/../../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-83.i [2024-11-24 02:02:35,296 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b789ee6-db6b-4943-a41a-593b41c82e06/bin/uautomizer-verify-LYvppIcaGC/data/fb6f5ebad/4b3a422cf203477e9719fcaf3e56bb24/FLAGa3552bd31 [2024-11-24 02:02:35,540 INFO L384 CDTParser]: Found 1 translation units. [2024-11-24 02:02:35,541 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b789ee6-db6b-4943-a41a-593b41c82e06/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-83.i [2024-11-24 02:02:35,551 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b789ee6-db6b-4943-a41a-593b41c82e06/bin/uautomizer-verify-LYvppIcaGC/data/fb6f5ebad/4b3a422cf203477e9719fcaf3e56bb24/FLAGa3552bd31 [2024-11-24 02:02:35,851 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b789ee6-db6b-4943-a41a-593b41c82e06/bin/uautomizer-verify-LYvppIcaGC/data/fb6f5ebad/4b3a422cf203477e9719fcaf3e56bb24 [2024-11-24 02:02:35,853 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-24 02:02:35,854 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-24 02:02:35,855 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-24 02:02:35,855 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-24 02:02:35,860 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-24 02:02:35,861 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 02:02:35" (1/1) ... [2024-11-24 02:02:35,862 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@46e5ed87 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 02:02:35, skipping insertion in model container [2024-11-24 02:02:35,862 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 02:02:35" (1/1) ... [2024-11-24 02:02:35,880 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-24 02:02:36,024 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_6b789ee6-db6b-4943-a41a-593b41c82e06/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-83.i[916,929] [2024-11-24 02:02:36,084 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 02:02:36,094 INFO L200 MainTranslator]: Completed pre-run [2024-11-24 02:02:36,105 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_6b789ee6-db6b-4943-a41a-593b41c82e06/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-83.i[916,929] [2024-11-24 02:02:36,127 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 02:02:36,142 INFO L204 MainTranslator]: Completed translation [2024-11-24 02:02:36,142 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 02:02:36 WrapperNode [2024-11-24 02:02:36,143 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-24 02:02:36,144 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-24 02:02:36,144 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-24 02:02:36,144 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-24 02:02:36,151 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 02:02:36" (1/1) ... [2024-11-24 02:02:36,165 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 02:02:36" (1/1) ... [2024-11-24 02:02:36,227 INFO L138 Inliner]: procedures = 26, calls = 26, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 130 [2024-11-24 02:02:36,229 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-24 02:02:36,230 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-24 02:02:36,230 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-24 02:02:36,230 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-24 02:02:36,241 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 02:02:36" (1/1) ... [2024-11-24 02:02:36,241 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 02:02:36" (1/1) ... [2024-11-24 02:02:36,244 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 02:02:36" (1/1) ... [2024-11-24 02:02:36,267 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 02:02:36,268 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 02:02:36" (1/1) ... [2024-11-24 02:02:36,268 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 02:02:36" (1/1) ... [2024-11-24 02:02:36,280 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 02:02:36" (1/1) ... [2024-11-24 02:02:36,281 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 02:02:36" (1/1) ... [2024-11-24 02:02:36,289 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 02:02:36" (1/1) ... [2024-11-24 02:02:36,293 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 02:02:36" (1/1) ... [2024-11-24 02:02:36,295 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 02:02:36" (1/1) ... [2024-11-24 02:02:36,300 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-24 02:02:36,301 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-24 02:02:36,306 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-24 02:02:36,306 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-24 02:02:36,307 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 02:02:36" (1/1) ... [2024-11-24 02:02:36,315 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 02:02:36,331 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b789ee6-db6b-4943-a41a-593b41c82e06/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 02:02:36,346 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b789ee6-db6b-4943-a41a-593b41c82e06/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-24 02:02:36,350 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b789ee6-db6b-4943-a41a-593b41c82e06/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-24 02:02:36,379 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-24 02:02:36,379 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-24 02:02:36,379 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-24 02:02:36,379 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-24 02:02:36,379 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-24 02:02:36,379 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-24 02:02:36,457 INFO L234 CfgBuilder]: Building ICFG [2024-11-24 02:02:36,459 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-24 02:02:36,838 INFO L? ?]: Removed 17 outVars from TransFormulas that were not future-live. [2024-11-24 02:02:36,839 INFO L283 CfgBuilder]: Performing block encoding [2024-11-24 02:02:36,848 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-24 02:02:36,849 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-24 02:02:36,849 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 02:02:36 BoogieIcfgContainer [2024-11-24 02:02:36,849 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-24 02:02:36,852 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-24 02:02:36,852 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-24 02:02:36,857 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-24 02:02:36,857 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 02:02:35" (1/3) ... [2024-11-24 02:02:36,858 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b5f30e2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 02:02:36, skipping insertion in model container [2024-11-24 02:02:36,858 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 02:02:36" (2/3) ... [2024-11-24 02:02:36,859 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b5f30e2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 02:02:36, skipping insertion in model container [2024-11-24 02:02:36,859 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 02:02:36" (3/3) ... [2024-11-24 02:02:36,860 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_floatingpointinfluence_no-floats_file-83.i [2024-11-24 02:02:36,877 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-24 02:02:36,878 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_floatingpointinfluence_no-floats_file-83.i that has 2 procedures, 58 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-24 02:02:36,935 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-24 02:02:36,947 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;@408945ee, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-24 02:02:36,947 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-24 02:02:36,951 INFO L276 IsEmpty]: Start isEmpty. Operand has 58 states, 42 states have (on average 1.4285714285714286) internal successors, (60), 43 states have internal predecessors, (60), 13 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2024-11-24 02:02:36,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2024-11-24 02:02:36,960 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 02:02:36,960 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:02:36,961 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 02:02:36,966 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 02:02:36,966 INFO L85 PathProgramCache]: Analyzing trace with hash -694190171, now seen corresponding path program 1 times [2024-11-24 02:02:36,974 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 02:02:36,974 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1584017039] [2024-11-24 02:02:36,975 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 02:02:36,975 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 02:02:37,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 02:02:37,257 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 288 trivial. 0 not checked. [2024-11-24 02:02:37,258 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 02:02:37,258 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1584017039] [2024-11-24 02:02:37,258 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1584017039] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 02:02:37,258 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2069607697] [2024-11-24 02:02:37,259 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 02:02:37,261 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 02:02:37,262 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b789ee6-db6b-4943-a41a-593b41c82e06/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 02:02:37,265 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b789ee6-db6b-4943-a41a-593b41c82e06/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 02:02:37,267 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b789ee6-db6b-4943-a41a-593b41c82e06/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-24 02:02:37,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 02:02:37,446 INFO L256 TraceCheckSpWp]: Trace formula consists of 218 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-24 02:02:37,451 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 02:02:37,482 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 288 trivial. 0 not checked. [2024-11-24 02:02:37,482 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 02:02:37,482 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2069607697] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 02:02:37,483 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-24 02:02:37,483 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-24 02:02:37,485 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [701314188] [2024-11-24 02:02:37,485 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 02:02:37,489 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-24 02:02:37,490 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 02:02:37,509 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-24 02:02:37,509 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-24 02:02:37,512 INFO L87 Difference]: Start difference. First operand has 58 states, 42 states have (on average 1.4285714285714286) internal successors, (60), 43 states have internal predecessors, (60), 13 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) Second operand has 2 states, 2 states have (on average 14.0) internal successors, (28), 2 states have internal predecessors, (28), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-24 02:02:37,535 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 02:02:37,536 INFO L93 Difference]: Finished difference Result 109 states and 179 transitions. [2024-11-24 02:02:37,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-24 02:02:37,538 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 14.0) internal successors, (28), 2 states have internal predecessors, (28), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 2 states have call successors, (13) Word has length 88 [2024-11-24 02:02:37,538 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 02:02:37,544 INFO L225 Difference]: With dead ends: 109 [2024-11-24 02:02:37,544 INFO L226 Difference]: Without dead ends: 54 [2024-11-24 02:02:37,547 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 89 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 02:02:37,552 INFO L435 NwaCegarLoop]: 78 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, 78 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 02:02:37,553 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 78 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 02:02:37,567 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2024-11-24 02:02:37,584 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 54. [2024-11-24 02:02:37,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54 states, 39 states have (on average 1.3333333333333333) internal successors, (52), 39 states have internal predecessors, (52), 13 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2024-11-24 02:02:37,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 78 transitions. [2024-11-24 02:02:37,591 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 78 transitions. Word has length 88 [2024-11-24 02:02:37,591 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 02:02:37,591 INFO L471 AbstractCegarLoop]: Abstraction has 54 states and 78 transitions. [2024-11-24 02:02:37,592 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 14.0) internal successors, (28), 2 states have internal predecessors, (28), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-24 02:02:37,592 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 78 transitions. [2024-11-24 02:02:37,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2024-11-24 02:02:37,595 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 02:02:37,595 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:02:37,604 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b789ee6-db6b-4943-a41a-593b41c82e06/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-24 02:02:37,799 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b789ee6-db6b-4943-a41a-593b41c82e06/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-11-24 02:02:37,799 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 02:02:37,800 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 02:02:37,800 INFO L85 PathProgramCache]: Analyzing trace with hash -738011223, now seen corresponding path program 1 times [2024-11-24 02:02:37,800 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 02:02:37,801 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [920372337] [2024-11-24 02:02:37,801 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 02:02:37,801 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 02:02:37,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 02:02:38,007 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-24 02:02:38,007 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 02:02:38,007 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [920372337] [2024-11-24 02:02:38,008 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [920372337] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 02:02:38,008 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 02:02:38,008 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 02:02:38,008 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [780644582] [2024-11-24 02:02:38,008 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 02:02:38,009 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 02:02:38,009 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 02:02:38,009 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 02:02:38,010 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 02:02:38,010 INFO L87 Difference]: Start difference. First operand 54 states and 78 transitions. Second operand has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-24 02:02:38,073 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 02:02:38,073 INFO L93 Difference]: Finished difference Result 130 states and 190 transitions. [2024-11-24 02:02:38,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 02:02:38,074 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 88 [2024-11-24 02:02:38,075 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 02:02:38,076 INFO L225 Difference]: With dead ends: 130 [2024-11-24 02:02:38,076 INFO L226 Difference]: Without dead ends: 79 [2024-11-24 02:02:38,077 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 02:02:38,078 INFO L435 NwaCegarLoop]: 102 mSDtfsCounter, 70 mSDsluCounter, 38 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 140 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 02:02:38,078 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [70 Valid, 140 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 02:02:38,079 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states. [2024-11-24 02:02:38,090 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 54. [2024-11-24 02:02:38,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54 states, 39 states have (on average 1.2820512820512822) internal successors, (50), 39 states have internal predecessors, (50), 13 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2024-11-24 02:02:38,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 76 transitions. [2024-11-24 02:02:38,095 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 76 transitions. Word has length 88 [2024-11-24 02:02:38,096 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 02:02:38,097 INFO L471 AbstractCegarLoop]: Abstraction has 54 states and 76 transitions. [2024-11-24 02:02:38,099 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-24 02:02:38,099 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 76 transitions. [2024-11-24 02:02:38,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2024-11-24 02:02:38,100 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 02:02:38,100 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:02:38,100 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-24 02:02:38,101 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 02:02:38,101 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 02:02:38,101 INFO L85 PathProgramCache]: Analyzing trace with hash -537900652, now seen corresponding path program 1 times [2024-11-24 02:02:38,101 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 02:02:38,101 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [875117897] [2024-11-24 02:02:38,102 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 02:02:38,102 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 02:02:38,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 02:02:38,476 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-24 02:02:38,476 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 02:02:38,476 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [875117897] [2024-11-24 02:02:38,476 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [875117897] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 02:02:38,476 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 02:02:38,476 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-24 02:02:38,476 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [759064224] [2024-11-24 02:02:38,477 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 02:02:38,477 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-24 02:02:38,477 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 02:02:38,478 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-24 02:02:38,478 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-24 02:02:38,478 INFO L87 Difference]: Start difference. First operand 54 states and 76 transitions. Second operand has 4 states, 4 states have (on average 6.75) internal successors, (27), 4 states have internal predecessors, (27), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-24 02:02:38,581 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 02:02:38,581 INFO L93 Difference]: Finished difference Result 107 states and 152 transitions. [2024-11-24 02:02:38,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-24 02:02:38,585 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.75) internal successors, (27), 4 states have internal predecessors, (27), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 89 [2024-11-24 02:02:38,585 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 02:02:38,586 INFO L225 Difference]: With dead ends: 107 [2024-11-24 02:02:38,586 INFO L226 Difference]: Without dead ends: 56 [2024-11-24 02:02:38,587 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-24 02:02:38,587 INFO L435 NwaCegarLoop]: 74 mSDtfsCounter, 7 mSDsluCounter, 119 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 193 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-24 02:02:38,591 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 193 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-24 02:02:38,592 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2024-11-24 02:02:38,599 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 56. [2024-11-24 02:02:38,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56 states, 41 states have (on average 1.2682926829268293) internal successors, (52), 41 states have internal predecessors, (52), 13 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2024-11-24 02:02:38,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 78 transitions. [2024-11-24 02:02:38,601 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 78 transitions. Word has length 89 [2024-11-24 02:02:38,601 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 02:02:38,601 INFO L471 AbstractCegarLoop]: Abstraction has 56 states and 78 transitions. [2024-11-24 02:02:38,601 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.75) internal successors, (27), 4 states have internal predecessors, (27), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-24 02:02:38,602 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 78 transitions. [2024-11-24 02:02:38,603 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2024-11-24 02:02:38,603 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 02:02:38,603 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:02:38,603 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-24 02:02:38,603 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 02:02:38,604 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 02:02:38,604 INFO L85 PathProgramCache]: Analyzing trace with hash 1747814245, now seen corresponding path program 1 times [2024-11-24 02:02:38,604 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 02:02:38,604 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1171387080] [2024-11-24 02:02:38,604 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 02:02:38,604 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 02:02:38,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 02:02:42,290 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-24 02:02:42,290 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 02:02:42,290 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1171387080] [2024-11-24 02:02:42,290 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1171387080] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 02:02:42,290 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 02:02:42,291 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-24 02:02:42,291 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [544854727] [2024-11-24 02:02:42,291 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 02:02:42,291 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-24 02:02:42,291 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 02:02:42,292 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-24 02:02:42,292 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-24 02:02:42,292 INFO L87 Difference]: Start difference. First operand 56 states and 78 transitions. Second operand has 5 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-24 02:02:42,678 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 02:02:42,678 INFO L93 Difference]: Finished difference Result 140 states and 191 transitions. [2024-11-24 02:02:42,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-24 02:02:42,679 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 90 [2024-11-24 02:02:42,679 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 02:02:42,680 INFO L225 Difference]: With dead ends: 140 [2024-11-24 02:02:42,680 INFO L226 Difference]: Without dead ends: 87 [2024-11-24 02:02:42,681 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-24 02:02:42,682 INFO L435 NwaCegarLoop]: 56 mSDtfsCounter, 96 mSDsluCounter, 118 mSDsCounter, 0 mSdLazyCounter, 98 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 96 SdHoareTripleChecker+Valid, 174 SdHoareTripleChecker+Invalid, 99 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 98 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-24 02:02:42,682 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [96 Valid, 174 Invalid, 99 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 98 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-24 02:02:42,683 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2024-11-24 02:02:42,690 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 73. [2024-11-24 02:02:42,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73 states, 57 states have (on average 1.263157894736842) internal successors, (72), 57 states have internal predecessors, (72), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2024-11-24 02:02:42,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 98 transitions. [2024-11-24 02:02:42,692 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 98 transitions. Word has length 90 [2024-11-24 02:02:42,692 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 02:02:42,692 INFO L471 AbstractCegarLoop]: Abstraction has 73 states and 98 transitions. [2024-11-24 02:02:42,692 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-24 02:02:42,692 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 98 transitions. [2024-11-24 02:02:42,694 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2024-11-24 02:02:42,694 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 02:02:42,694 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:02:42,694 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-24 02:02:42,694 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 02:02:42,695 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 02:02:42,695 INFO L85 PathProgramCache]: Analyzing trace with hash -1950450378, now seen corresponding path program 1 times [2024-11-24 02:02:42,695 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 02:02:42,695 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [839790111] [2024-11-24 02:02:42,695 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 02:02:42,695 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 02:02:42,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 02:02:44,182 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-24 02:02:44,182 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 02:02:44,182 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [839790111] [2024-11-24 02:02:44,183 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [839790111] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 02:02:44,183 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 02:02:44,183 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-24 02:02:44,183 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1235356654] [2024-11-24 02:02:44,183 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 02:02:44,185 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-24 02:02:44,185 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 02:02:44,185 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-24 02:02:44,186 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-24 02:02:44,186 INFO L87 Difference]: Start difference. First operand 73 states and 98 transitions. Second operand has 6 states, 6 states have (on average 4.833333333333333) internal successors, (29), 6 states have internal predecessors, (29), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-24 02:02:44,733 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 02:02:44,733 INFO L93 Difference]: Finished difference Result 170 states and 228 transitions. [2024-11-24 02:02:44,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-24 02:02:44,736 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.833333333333333) internal successors, (29), 6 states have internal predecessors, (29), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 91 [2024-11-24 02:02:44,736 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 02:02:44,737 INFO L225 Difference]: With dead ends: 170 [2024-11-24 02:02:44,737 INFO L226 Difference]: Without dead ends: 100 [2024-11-24 02:02:44,738 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-24 02:02:44,738 INFO L435 NwaCegarLoop]: 76 mSDtfsCounter, 38 mSDsluCounter, 170 mSDsCounter, 0 mSdLazyCounter, 152 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 246 SdHoareTripleChecker+Invalid, 152 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 152 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-24 02:02:44,739 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 246 Invalid, 152 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 152 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-24 02:02:44,744 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100 states. [2024-11-24 02:02:44,757 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100 to 73. [2024-11-24 02:02:44,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73 states, 57 states have (on average 1.263157894736842) internal successors, (72), 57 states have internal predecessors, (72), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2024-11-24 02:02:44,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 98 transitions. [2024-11-24 02:02:44,758 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 98 transitions. Word has length 91 [2024-11-24 02:02:44,761 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 02:02:44,762 INFO L471 AbstractCegarLoop]: Abstraction has 73 states and 98 transitions. [2024-11-24 02:02:44,762 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.833333333333333) internal successors, (29), 6 states have internal predecessors, (29), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-24 02:02:44,762 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 98 transitions. [2024-11-24 02:02:44,764 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2024-11-24 02:02:44,765 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 02:02:44,765 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:02:44,765 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-24 02:02:44,765 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 02:02:44,766 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 02:02:44,767 INFO L85 PathProgramCache]: Analyzing trace with hash 1333399668, now seen corresponding path program 1 times [2024-11-24 02:02:44,768 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 02:02:44,768 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1951058114] [2024-11-24 02:02:44,768 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 02:02:44,768 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 02:02:44,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 02:02:47,455 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-24 02:02:47,455 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 02:02:47,455 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1951058114] [2024-11-24 02:02:47,455 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1951058114] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 02:02:47,456 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 02:02:47,459 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-24 02:02:47,459 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [882827143] [2024-11-24 02:02:47,459 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 02:02:47,460 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-24 02:02:47,460 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 02:02:47,460 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-24 02:02:47,460 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-11-24 02:02:47,461 INFO L87 Difference]: Start difference. First operand 73 states and 98 transitions. Second operand has 9 states, 9 states have (on average 3.2222222222222223) internal successors, (29), 9 states have internal predecessors, (29), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-24 02:02:49,061 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 02:02:49,061 INFO L93 Difference]: Finished difference Result 169 states and 226 transitions. [2024-11-24 02:02:49,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-24 02:02:49,062 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 3.2222222222222223) internal successors, (29), 9 states have internal predecessors, (29), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 91 [2024-11-24 02:02:49,063 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 02:02:49,064 INFO L225 Difference]: With dead ends: 169 [2024-11-24 02:02:49,064 INFO L226 Difference]: Without dead ends: 99 [2024-11-24 02:02:49,064 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2024-11-24 02:02:49,065 INFO L435 NwaCegarLoop]: 75 mSDtfsCounter, 125 mSDsluCounter, 254 mSDsCounter, 0 mSdLazyCounter, 228 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 125 SdHoareTripleChecker+Valid, 329 SdHoareTripleChecker+Invalid, 231 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 228 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-24 02:02:49,065 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [125 Valid, 329 Invalid, 231 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 228 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-24 02:02:49,066 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2024-11-24 02:02:49,073 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 60. [2024-11-24 02:02:49,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60 states, 44 states have (on average 1.2272727272727273) internal successors, (54), 44 states have internal predecessors, (54), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2024-11-24 02:02:49,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 80 transitions. [2024-11-24 02:02:49,074 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 80 transitions. Word has length 91 [2024-11-24 02:02:49,075 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 02:02:49,075 INFO L471 AbstractCegarLoop]: Abstraction has 60 states and 80 transitions. [2024-11-24 02:02:49,075 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 3.2222222222222223) internal successors, (29), 9 states have internal predecessors, (29), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-24 02:02:49,075 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 80 transitions. [2024-11-24 02:02:49,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2024-11-24 02:02:49,076 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 02:02:49,076 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:02:49,077 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-24 02:02:49,077 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 02:02:49,077 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 02:02:49,077 INFO L85 PathProgramCache]: Analyzing trace with hash 1947015180, now seen corresponding path program 1 times [2024-11-24 02:02:49,078 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 02:02:49,078 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [781302391] [2024-11-24 02:02:49,078 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 02:02:49,078 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 02:02:49,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 02:02:49,192 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-24 02:02:49,192 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 02:02:49,192 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [781302391] [2024-11-24 02:02:49,192 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [781302391] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 02:02:49,192 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 02:02:49,192 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 02:02:49,192 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [778548317] [2024-11-24 02:02:49,192 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 02:02:49,193 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 02:02:49,193 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 02:02:49,193 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 02:02:49,193 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 02:02:49,194 INFO L87 Difference]: Start difference. First operand 60 states and 80 transitions. Second operand has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-24 02:02:49,266 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 02:02:49,266 INFO L93 Difference]: Finished difference Result 138 states and 181 transitions. [2024-11-24 02:02:49,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 02:02:49,268 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 92 [2024-11-24 02:02:49,268 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 02:02:49,269 INFO L225 Difference]: With dead ends: 138 [2024-11-24 02:02:49,269 INFO L226 Difference]: Without dead ends: 81 [2024-11-24 02:02:49,270 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 02:02:49,271 INFO L435 NwaCegarLoop]: 69 mSDtfsCounter, 27 mSDsluCounter, 44 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 113 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-24 02:02:49,272 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 113 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-24 02:02:49,273 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81 states. [2024-11-24 02:02:49,282 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81 to 65. [2024-11-24 02:02:49,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65 states, 49 states have (on average 1.2244897959183674) internal successors, (60), 49 states have internal predecessors, (60), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2024-11-24 02:02:49,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 86 transitions. [2024-11-24 02:02:49,289 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 86 transitions. Word has length 92 [2024-11-24 02:02:49,289 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 02:02:49,289 INFO L471 AbstractCegarLoop]: Abstraction has 65 states and 86 transitions. [2024-11-24 02:02:49,290 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-24 02:02:49,290 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 86 transitions. [2024-11-24 02:02:49,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2024-11-24 02:02:49,291 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 02:02:49,291 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:02:49,291 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-24 02:02:49,291 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 02:02:49,292 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 02:02:49,292 INFO L85 PathProgramCache]: Analyzing trace with hash 828114827, now seen corresponding path program 1 times [2024-11-24 02:02:49,293 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 02:02:49,294 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1804914642] [2024-11-24 02:02:49,294 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 02:02:49,294 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 02:02:49,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 02:02:49,620 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-24 02:02:49,620 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 02:02:49,620 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1804914642] [2024-11-24 02:02:49,620 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1804914642] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 02:02:49,621 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 02:02:49,621 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-24 02:02:49,621 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1220500940] [2024-11-24 02:02:49,621 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 02:02:49,621 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-24 02:02:49,623 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 02:02:49,623 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-24 02:02:49,623 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-11-24 02:02:49,624 INFO L87 Difference]: Start difference. First operand 65 states and 86 transitions. Second operand has 8 states, 8 states have (on average 3.75) internal successors, (30), 8 states have internal predecessors, (30), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-24 02:02:49,977 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 02:02:49,978 INFO L93 Difference]: Finished difference Result 127 states and 161 transitions. [2024-11-24 02:02:49,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-24 02:02:49,979 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 3.75) internal successors, (30), 8 states have internal predecessors, (30), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 92 [2024-11-24 02:02:49,979 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 02:02:49,980 INFO L225 Difference]: With dead ends: 127 [2024-11-24 02:02:49,980 INFO L226 Difference]: Without dead ends: 125 [2024-11-24 02:02:49,980 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2024-11-24 02:02:49,981 INFO L435 NwaCegarLoop]: 76 mSDtfsCounter, 101 mSDsluCounter, 272 mSDsCounter, 0 mSdLazyCounter, 261 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 101 SdHoareTripleChecker+Valid, 348 SdHoareTripleChecker+Invalid, 275 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 261 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-24 02:02:49,981 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [101 Valid, 348 Invalid, 275 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 261 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-24 02:02:49,982 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125 states. [2024-11-24 02:02:49,993 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125 to 92. [2024-11-24 02:02:49,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 92 states, 67 states have (on average 1.1791044776119404) internal successors, (79), 68 states have internal predecessors, (79), 20 states have call successors, (20), 4 states have call predecessors, (20), 4 states have return successors, (20), 19 states have call predecessors, (20), 20 states have call successors, (20) [2024-11-24 02:02:49,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 119 transitions. [2024-11-24 02:02:49,995 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 119 transitions. Word has length 92 [2024-11-24 02:02:49,996 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 02:02:49,996 INFO L471 AbstractCegarLoop]: Abstraction has 92 states and 119 transitions. [2024-11-24 02:02:49,996 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 3.75) internal successors, (30), 8 states have internal predecessors, (30), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-24 02:02:49,996 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 119 transitions. [2024-11-24 02:02:49,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2024-11-24 02:02:49,997 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 02:02:49,997 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:02:49,997 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-24 02:02:49,997 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 02:02:49,998 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 02:02:49,998 INFO L85 PathProgramCache]: Analyzing trace with hash -1353138948, now seen corresponding path program 1 times [2024-11-24 02:02:49,998 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 02:02:49,998 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [856979516] [2024-11-24 02:02:49,998 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 02:02:49,998 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 02:02:50,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 02:02:50,079 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-24 02:02:50,079 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 02:02:50,079 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [856979516] [2024-11-24 02:02:50,079 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [856979516] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 02:02:50,079 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 02:02:50,079 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-24 02:02:50,080 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1118056885] [2024-11-24 02:02:50,080 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 02:02:50,080 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-24 02:02:50,080 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 02:02:50,081 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-24 02:02:50,081 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-24 02:02:50,081 INFO L87 Difference]: Start difference. First operand 92 states and 119 transitions. Second operand has 4 states, 4 states have (on average 7.75) internal successors, (31), 4 states have internal predecessors, (31), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-24 02:02:50,176 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 02:02:50,176 INFO L93 Difference]: Finished difference Result 176 states and 225 transitions. [2024-11-24 02:02:50,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-24 02:02:50,177 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.75) internal successors, (31), 4 states have internal predecessors, (31), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 93 [2024-11-24 02:02:50,177 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 02:02:50,179 INFO L225 Difference]: With dead ends: 176 [2024-11-24 02:02:50,179 INFO L226 Difference]: Without dead ends: 102 [2024-11-24 02:02:50,180 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-24 02:02:50,180 INFO L435 NwaCegarLoop]: 66 mSDtfsCounter, 31 mSDsluCounter, 88 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 154 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-24 02:02:50,180 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 154 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-24 02:02:50,181 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102 states. [2024-11-24 02:02:50,192 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102 to 87. [2024-11-24 02:02:50,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 87 states, 62 states have (on average 1.1612903225806452) internal successors, (72), 63 states have internal predecessors, (72), 20 states have call successors, (20), 4 states have call predecessors, (20), 4 states have return successors, (20), 19 states have call predecessors, (20), 20 states have call successors, (20) [2024-11-24 02:02:50,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 112 transitions. [2024-11-24 02:02:50,194 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 112 transitions. Word has length 93 [2024-11-24 02:02:50,194 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 02:02:50,194 INFO L471 AbstractCegarLoop]: Abstraction has 87 states and 112 transitions. [2024-11-24 02:02:50,195 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.75) internal successors, (31), 4 states have internal predecessors, (31), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-24 02:02:50,195 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 112 transitions. [2024-11-24 02:02:50,196 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-11-24 02:02:50,196 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 02:02:50,196 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:02:50,196 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-24 02:02:50,196 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 02:02:50,196 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 02:02:50,196 INFO L85 PathProgramCache]: Analyzing trace with hash -1162617665, now seen corresponding path program 1 times [2024-11-24 02:02:50,197 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 02:02:50,197 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1727405032] [2024-11-24 02:02:50,197 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 02:02:50,197 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 02:02:50,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 02:02:50,935 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-24 02:02:50,935 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 02:02:50,936 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1727405032] [2024-11-24 02:02:50,936 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1727405032] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 02:02:50,936 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 02:02:50,936 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-24 02:02:50,936 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1910737903] [2024-11-24 02:02:50,936 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 02:02:50,937 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-24 02:02:50,937 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 02:02:50,937 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-24 02:02:50,937 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2024-11-24 02:02:50,938 INFO L87 Difference]: Start difference. First operand 87 states and 112 transitions. Second operand has 11 states, 11 states have (on average 3.0) internal successors, (33), 11 states have internal predecessors, (33), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-24 02:02:51,633 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 02:02:51,633 INFO L93 Difference]: Finished difference Result 132 states and 165 transitions. [2024-11-24 02:02:51,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-24 02:02:51,634 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 3.0) internal successors, (33), 11 states have internal predecessors, (33), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 95 [2024-11-24 02:02:51,634 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 02:02:51,635 INFO L225 Difference]: With dead ends: 132 [2024-11-24 02:02:51,635 INFO L226 Difference]: Without dead ends: 130 [2024-11-24 02:02:51,636 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=50, Invalid=190, Unknown=0, NotChecked=0, Total=240 [2024-11-24 02:02:51,636 INFO L435 NwaCegarLoop]: 97 mSDtfsCounter, 96 mSDsluCounter, 456 mSDsCounter, 0 mSdLazyCounter, 471 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 96 SdHoareTripleChecker+Valid, 553 SdHoareTripleChecker+Invalid, 471 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 471 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-24 02:02:51,636 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [96 Valid, 553 Invalid, 471 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 471 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-24 02:02:51,637 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130 states. [2024-11-24 02:02:51,650 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130 to 95. [2024-11-24 02:02:51,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 95 states, 70 states have (on average 1.1714285714285715) internal successors, (82), 71 states have internal predecessors, (82), 20 states have call successors, (20), 4 states have call predecessors, (20), 4 states have return successors, (20), 19 states have call predecessors, (20), 20 states have call successors, (20) [2024-11-24 02:02:51,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 95 states and 122 transitions. [2024-11-24 02:02:51,651 INFO L78 Accepts]: Start accepts. Automaton has 95 states and 122 transitions. Word has length 95 [2024-11-24 02:02:51,652 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 02:02:51,652 INFO L471 AbstractCegarLoop]: Abstraction has 95 states and 122 transitions. [2024-11-24 02:02:51,652 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 3.0) internal successors, (33), 11 states have internal predecessors, (33), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-24 02:02:51,652 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 122 transitions. [2024-11-24 02:02:51,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-11-24 02:02:51,653 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 02:02:51,653 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:02:51,654 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-24 02:02:51,654 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 02:02:51,654 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 02:02:51,654 INFO L85 PathProgramCache]: Analyzing trace with hash -1749423679, now seen corresponding path program 1 times [2024-11-24 02:02:51,654 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 02:02:51,655 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1924620114] [2024-11-24 02:02:51,655 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 02:02:51,655 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 02:02:51,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 02:02:52,145 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-24 02:02:52,145 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 02:02:52,146 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1924620114] [2024-11-24 02:02:52,146 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1924620114] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 02:02:52,146 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 02:02:52,146 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-24 02:02:52,146 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1912093545] [2024-11-24 02:02:52,146 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 02:02:52,146 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-24 02:02:52,147 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 02:02:52,147 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-24 02:02:52,147 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2024-11-24 02:02:52,147 INFO L87 Difference]: Start difference. First operand 95 states and 122 transitions. Second operand has 11 states, 11 states have (on average 3.0) internal successors, (33), 11 states have internal predecessors, (33), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-24 02:02:52,738 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 02:02:52,738 INFO L93 Difference]: Finished difference Result 139 states and 173 transitions. [2024-11-24 02:02:52,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-24 02:02:52,738 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 3.0) internal successors, (33), 11 states have internal predecessors, (33), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 95 [2024-11-24 02:02:52,739 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 02:02:52,740 INFO L225 Difference]: With dead ends: 139 [2024-11-24 02:02:52,740 INFO L226 Difference]: Without dead ends: 137 [2024-11-24 02:02:52,740 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=50, Invalid=190, Unknown=0, NotChecked=0, Total=240 [2024-11-24 02:02:52,741 INFO L435 NwaCegarLoop]: 99 mSDtfsCounter, 92 mSDsluCounter, 401 mSDsCounter, 0 mSdLazyCounter, 528 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 500 SdHoareTripleChecker+Invalid, 528 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 528 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-24 02:02:52,741 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [92 Valid, 500 Invalid, 528 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 528 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-24 02:02:52,741 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137 states. [2024-11-24 02:02:52,765 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137 to 95. [2024-11-24 02:02:52,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 95 states, 70 states have (on average 1.1714285714285715) internal successors, (82), 71 states have internal predecessors, (82), 20 states have call successors, (20), 4 states have call predecessors, (20), 4 states have return successors, (20), 19 states have call predecessors, (20), 20 states have call successors, (20) [2024-11-24 02:02:52,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 95 states and 122 transitions. [2024-11-24 02:02:52,768 INFO L78 Accepts]: Start accepts. Automaton has 95 states and 122 transitions. Word has length 95 [2024-11-24 02:02:52,770 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 02:02:52,770 INFO L471 AbstractCegarLoop]: Abstraction has 95 states and 122 transitions. [2024-11-24 02:02:52,771 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 3.0) internal successors, (33), 11 states have internal predecessors, (33), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-24 02:02:52,771 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 122 transitions. [2024-11-24 02:02:52,772 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-11-24 02:02:52,775 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 02:02:52,775 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:02:52,775 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-24 02:02:52,775 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 02:02:52,775 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 02:02:52,776 INFO L85 PathProgramCache]: Analyzing trace with hash -1081849632, now seen corresponding path program 1 times [2024-11-24 02:02:52,776 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 02:02:52,776 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [148695159] [2024-11-24 02:02:52,776 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 02:02:52,776 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 02:02:52,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 02:02:52,829 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-24 02:02:52,830 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 02:02:52,830 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [148695159] [2024-11-24 02:02:52,830 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [148695159] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 02:02:52,830 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 02:02:52,831 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 02:02:52,831 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [184754038] [2024-11-24 02:02:52,831 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 02:02:52,831 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 02:02:52,831 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 02:02:52,832 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 02:02:52,832 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 02:02:52,832 INFO L87 Difference]: Start difference. First operand 95 states and 122 transitions. Second operand has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-24 02:02:52,888 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 02:02:52,889 INFO L93 Difference]: Finished difference Result 210 states and 268 transitions. [2024-11-24 02:02:52,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 02:02:52,890 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 95 [2024-11-24 02:02:52,890 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 02:02:52,891 INFO L225 Difference]: With dead ends: 210 [2024-11-24 02:02:52,893 INFO L226 Difference]: Without dead ends: 133 [2024-11-24 02:02:52,894 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 02:02:52,894 INFO L435 NwaCegarLoop]: 73 mSDtfsCounter, 55 mSDsluCounter, 51 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 124 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 02:02:52,894 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 124 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 02:02:52,895 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133 states. [2024-11-24 02:02:52,921 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133 to 132. [2024-11-24 02:02:52,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 132 states, 91 states have (on average 1.120879120879121) internal successors, (102), 93 states have internal predecessors, (102), 33 states have call successors, (33), 7 states have call predecessors, (33), 7 states have return successors, (33), 31 states have call predecessors, (33), 33 states have call successors, (33) [2024-11-24 02:02:52,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 132 states and 168 transitions. [2024-11-24 02:02:52,924 INFO L78 Accepts]: Start accepts. Automaton has 132 states and 168 transitions. Word has length 95 [2024-11-24 02:02:52,925 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 02:02:52,926 INFO L471 AbstractCegarLoop]: Abstraction has 132 states and 168 transitions. [2024-11-24 02:02:52,926 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-24 02:02:52,927 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 168 transitions. [2024-11-24 02:02:52,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2024-11-24 02:02:52,927 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 02:02:52,928 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:02:52,928 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-24 02:02:52,928 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 02:02:52,928 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 02:02:52,928 INFO L85 PathProgramCache]: Analyzing trace with hash 1543387222, now seen corresponding path program 1 times [2024-11-24 02:02:52,928 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 02:02:52,928 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2024737580] [2024-11-24 02:02:52,928 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 02:02:52,929 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 02:02:52,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 02:02:52,972 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-24 02:02:52,973 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 02:02:52,973 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2024737580] [2024-11-24 02:02:52,973 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2024737580] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 02:02:52,973 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 02:02:52,973 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 02:02:52,973 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [360441988] [2024-11-24 02:02:52,973 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 02:02:52,974 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 02:02:52,974 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 02:02:52,974 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 02:02:52,974 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 02:02:52,974 INFO L87 Difference]: Start difference. First operand 132 states and 168 transitions. Second operand has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-24 02:02:53,038 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 02:02:53,038 INFO L93 Difference]: Finished difference Result 247 states and 313 transitions. [2024-11-24 02:02:53,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 02:02:53,039 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 96 [2024-11-24 02:02:53,039 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 02:02:53,040 INFO L225 Difference]: With dead ends: 247 [2024-11-24 02:02:53,041 INFO L226 Difference]: Without dead ends: 133 [2024-11-24 02:02:53,041 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 02:02:53,041 INFO L435 NwaCegarLoop]: 112 mSDtfsCounter, 44 mSDsluCounter, 55 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 167 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 02:02:53,042 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [44 Valid, 167 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 02:02:53,042 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133 states. [2024-11-24 02:02:53,068 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133 to 132. [2024-11-24 02:02:53,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 132 states, 91 states have (on average 1.10989010989011) internal successors, (101), 93 states have internal predecessors, (101), 33 states have call successors, (33), 7 states have call predecessors, (33), 7 states have return successors, (33), 31 states have call predecessors, (33), 33 states have call successors, (33) [2024-11-24 02:02:53,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 132 states and 167 transitions. [2024-11-24 02:02:53,070 INFO L78 Accepts]: Start accepts. Automaton has 132 states and 167 transitions. Word has length 96 [2024-11-24 02:02:53,070 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 02:02:53,070 INFO L471 AbstractCegarLoop]: Abstraction has 132 states and 167 transitions. [2024-11-24 02:02:53,070 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-24 02:02:53,070 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 167 transitions. [2024-11-24 02:02:53,071 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2024-11-24 02:02:53,071 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 02:02:53,071 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:02:53,072 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-24 02:02:53,072 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 02:02:53,072 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 02:02:53,073 INFO L85 PathProgramCache]: Analyzing trace with hash -247771051, now seen corresponding path program 1 times [2024-11-24 02:02:53,073 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 02:02:53,073 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [611194590] [2024-11-24 02:02:53,073 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 02:02:53,073 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 02:02:53,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 02:02:53,148 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-24 02:02:53,149 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 02:02:53,149 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [611194590] [2024-11-24 02:02:53,149 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [611194590] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 02:02:53,152 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 02:02:53,152 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-24 02:02:53,152 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1863834444] [2024-11-24 02:02:53,152 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 02:02:53,153 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-24 02:02:53,153 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 02:02:53,154 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-24 02:02:53,154 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-24 02:02:53,154 INFO L87 Difference]: Start difference. First operand 132 states and 167 transitions. Second operand has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-24 02:02:53,256 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 02:02:53,260 INFO L93 Difference]: Finished difference Result 256 states and 321 transitions. [2024-11-24 02:02:53,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-24 02:02:53,261 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 96 [2024-11-24 02:02:53,261 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 02:02:53,262 INFO L225 Difference]: With dead ends: 256 [2024-11-24 02:02:53,262 INFO L226 Difference]: Without dead ends: 142 [2024-11-24 02:02:53,263 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-24 02:02:53,263 INFO L435 NwaCegarLoop]: 82 mSDtfsCounter, 18 mSDsluCounter, 103 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 185 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-24 02:02:53,263 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 185 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-24 02:02:53,264 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 142 states. [2024-11-24 02:02:53,292 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 142 to 132. [2024-11-24 02:02:53,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 132 states, 91 states have (on average 1.098901098901099) internal successors, (100), 93 states have internal predecessors, (100), 33 states have call successors, (33), 7 states have call predecessors, (33), 7 states have return successors, (33), 31 states have call predecessors, (33), 33 states have call successors, (33) [2024-11-24 02:02:53,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 132 states and 166 transitions. [2024-11-24 02:02:53,295 INFO L78 Accepts]: Start accepts. Automaton has 132 states and 166 transitions. Word has length 96 [2024-11-24 02:02:53,296 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 02:02:53,296 INFO L471 AbstractCegarLoop]: Abstraction has 132 states and 166 transitions. [2024-11-24 02:02:53,296 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-24 02:02:53,296 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 166 transitions. [2024-11-24 02:02:53,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2024-11-24 02:02:53,298 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 02:02:53,298 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:02:53,298 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-24 02:02:53,298 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 02:02:53,299 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 02:02:53,299 INFO L85 PathProgramCache]: Analyzing trace with hash 235791686, now seen corresponding path program 1 times [2024-11-24 02:02:53,299 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 02:02:53,299 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1697824752] [2024-11-24 02:02:53,299 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 02:02:53,299 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 02:02:53,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 02:02:53,366 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-24 02:02:53,367 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 02:02:53,367 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1697824752] [2024-11-24 02:02:53,368 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1697824752] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 02:02:53,369 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 02:02:53,369 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-24 02:02:53,370 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [272579632] [2024-11-24 02:02:53,370 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 02:02:53,371 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-24 02:02:53,371 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 02:02:53,371 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-24 02:02:53,371 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-24 02:02:53,372 INFO L87 Difference]: Start difference. First operand 132 states and 166 transitions. Second operand has 4 states, 4 states have (on average 8.75) internal successors, (35), 4 states have internal predecessors, (35), 2 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-24 02:02:53,500 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 02:02:53,501 INFO L93 Difference]: Finished difference Result 260 states and 327 transitions. [2024-11-24 02:02:53,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-24 02:02:53,502 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.75) internal successors, (35), 4 states have internal predecessors, (35), 2 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 97 [2024-11-24 02:02:53,502 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 02:02:53,503 INFO L225 Difference]: With dead ends: 260 [2024-11-24 02:02:53,503 INFO L226 Difference]: Without dead ends: 146 [2024-11-24 02:02:53,504 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-24 02:02:53,504 INFO L435 NwaCegarLoop]: 86 mSDtfsCounter, 108 mSDsluCounter, 34 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 120 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-24 02:02:53,505 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [108 Valid, 120 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-24 02:02:53,505 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2024-11-24 02:02:53,523 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 108. [2024-11-24 02:02:53,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 108 states, 76 states have (on average 1.0921052631578947) internal successors, (83), 77 states have internal predecessors, (83), 26 states have call successors, (26), 5 states have call predecessors, (26), 5 states have return successors, (26), 25 states have call predecessors, (26), 26 states have call successors, (26) [2024-11-24 02:02:53,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 135 transitions. [2024-11-24 02:02:53,525 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 135 transitions. Word has length 97 [2024-11-24 02:02:53,525 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 02:02:53,525 INFO L471 AbstractCegarLoop]: Abstraction has 108 states and 135 transitions. [2024-11-24 02:02:53,526 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.75) internal successors, (35), 4 states have internal predecessors, (35), 2 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-24 02:02:53,526 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 135 transitions. [2024-11-24 02:02:53,527 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2024-11-24 02:02:53,527 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 02:02:53,527 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:02:53,527 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-24 02:02:53,527 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 02:02:53,528 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 02:02:53,528 INFO L85 PathProgramCache]: Analyzing trace with hash -853161537, now seen corresponding path program 1 times [2024-11-24 02:02:53,528 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 02:02:53,528 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1653673064] [2024-11-24 02:02:53,528 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 02:02:53,528 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 02:02:53,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-24 02:02:53,581 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1687861637] [2024-11-24 02:02:53,581 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 02:02:53,581 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 02:02:53,581 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b789ee6-db6b-4943-a41a-593b41c82e06/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 02:02:53,583 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b789ee6-db6b-4943-a41a-593b41c82e06/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 02:02:53,586 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b789ee6-db6b-4943-a41a-593b41c82e06/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-24 02:02:53,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-24 02:02:53,671 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-24 02:02:53,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-24 02:02:53,748 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-24 02:02:53,748 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-11-24 02:02:53,749 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-24 02:02:53,760 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b789ee6-db6b-4943-a41a-593b41c82e06/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-24 02:02:53,951 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b789ee6-db6b-4943-a41a-593b41c82e06/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2024-11-24 02:02:53,954 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 02:02:54,014 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-24 02:02:54,021 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.11 02:02:54 BoogieIcfgContainer [2024-11-24 02:02:54,021 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-24 02:02:54,022 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-24 02:02:54,022 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-24 02:02:54,023 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-24 02:02:54,024 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 02:02:36" (3/4) ... [2024-11-24 02:02:54,026 INFO L149 WitnessPrinter]: No result that supports witness generation found [2024-11-24 02:02:54,027 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-24 02:02:54,027 INFO L158 Benchmark]: Toolchain (without parser) took 18173.62ms. Allocated memory was 117.4MB in the beginning and 176.2MB in the end (delta: 58.7MB). Free memory was 92.5MB in the beginning and 126.4MB in the end (delta: -33.9MB). Peak memory consumption was 23.7MB. Max. memory is 16.1GB. [2024-11-24 02:02:54,029 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 117.4MB. Free memory is still 74.1MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-24 02:02:54,029 INFO L158 Benchmark]: CACSL2BoogieTranslator took 287.93ms. Allocated memory is still 117.4MB. Free memory was 92.3MB in the beginning and 79.2MB in the end (delta: 13.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-24 02:02:54,029 INFO L158 Benchmark]: Boogie Procedure Inliner took 85.93ms. Allocated memory is still 117.4MB. Free memory was 79.2MB in the beginning and 76.5MB in the end (delta: 2.8MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-24 02:02:54,029 INFO L158 Benchmark]: Boogie Preprocessor took 70.02ms. Allocated memory is still 117.4MB. Free memory was 76.5MB in the beginning and 72.7MB in the end (delta: 3.8MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-24 02:02:54,030 INFO L158 Benchmark]: RCFGBuilder took 548.74ms. Allocated memory is still 117.4MB. Free memory was 72.7MB in the beginning and 54.5MB in the end (delta: 18.2MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-11-24 02:02:54,030 INFO L158 Benchmark]: TraceAbstraction took 17169.13ms. Allocated memory was 117.4MB in the beginning and 176.2MB in the end (delta: 58.7MB). Free memory was 53.9MB in the beginning and 126.4MB in the end (delta: -72.5MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-24 02:02:54,031 INFO L158 Benchmark]: Witness Printer took 4.37ms. Allocated memory is still 176.2MB. Free memory was 126.4MB in the beginning and 126.4MB in the end (delta: 33.1kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-24 02:02:54,032 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28ms. Allocated memory is still 117.4MB. Free memory is still 74.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 287.93ms. Allocated memory is still 117.4MB. Free memory was 92.3MB in the beginning and 79.2MB in the end (delta: 13.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 85.93ms. Allocated memory is still 117.4MB. Free memory was 79.2MB in the beginning and 76.5MB in the end (delta: 2.8MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 70.02ms. Allocated memory is still 117.4MB. Free memory was 76.5MB in the beginning and 72.7MB in the end (delta: 3.8MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 548.74ms. Allocated memory is still 117.4MB. Free memory was 72.7MB in the beginning and 54.5MB in the end (delta: 18.2MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * TraceAbstraction took 17169.13ms. Allocated memory was 117.4MB in the beginning and 176.2MB in the end (delta: 58.7MB). Free memory was 53.9MB in the beginning and 126.4MB in the end (delta: -72.5MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 4.37ms. Allocated memory is still 176.2MB. Free memory was 126.4MB in the beginning and 126.4MB in the end (delta: 33.1kB). 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 bitwiseOr at line 52, overapproximation of bitwiseOr at line 91. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] unsigned short int var_1_1 = 128; [L23] unsigned char var_1_2 = 0; [L24] unsigned short int var_1_3 = 25; [L25] unsigned char var_1_4 = 4; [L26] signed long int var_1_8 = 127; [L27] signed long int var_1_10 = 0; [L28] signed long int var_1_11 = 128; [L29] signed long int var_1_12 = 24; [L30] signed short int var_1_14 = -128; [L31] signed char var_1_15 = 64; [L32] signed char var_1_16 = 5; [L33] signed long int var_1_17 = 1; [L34] unsigned short int last_1_var_1_1 = 128; VAL [isInitial=0, last_1_var_1_1=128, var_1_10=0, var_1_11=128, var_1_12=24, var_1_14=-128, var_1_15=64, var_1_16=5, var_1_17=1, var_1_1=128, var_1_2=0, var_1_3=25, var_1_4=4, var_1_8=127] [L95] isInitial = 1 [L96] FCALL initially() [L98] CALL updateLastVariables() [L88] last_1_var_1_1 = var_1_1 VAL [isInitial=1, last_1_var_1_1=128, var_1_10=0, var_1_11=128, var_1_12=24, var_1_14=-128, var_1_15=64, var_1_16=5, var_1_17=1, var_1_1=128, var_1_2=0, var_1_3=25, var_1_4=4, var_1_8=127] [L98] RET updateLastVariables() [L99] CALL updateVariables() [L67] var_1_2 = __VERIFIER_nondet_uchar() [L68] CALL assume_abort_if_not(var_1_2 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=128, var_1_10=0, var_1_11=128, var_1_12=24, var_1_14=-128, var_1_15=64, var_1_16=5, var_1_17=1, var_1_1=128, var_1_3=25, var_1_4=4, var_1_8=127] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=128, var_1_10=0, var_1_11=128, var_1_12=24, var_1_14=-128, var_1_15=64, var_1_16=5, var_1_17=1, var_1_1=128, var_1_3=25, var_1_4=4, var_1_8=127] [L68] RET assume_abort_if_not(var_1_2 >= 0) VAL [isInitial=1, last_1_var_1_1=128, var_1_10=0, var_1_11=128, var_1_12=24, var_1_14=-128, var_1_15=64, var_1_16=5, var_1_17=1, var_1_1=128, var_1_3=25, var_1_4=4, var_1_8=127] [L69] CALL assume_abort_if_not(var_1_2 <= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=128, var_1_10=0, var_1_11=128, var_1_12=24, var_1_14=-128, var_1_15=64, var_1_16=5, var_1_17=1, var_1_1=128, var_1_2=1, var_1_3=25, var_1_4=4, var_1_8=127] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=128, var_1_10=0, var_1_11=128, var_1_12=24, var_1_14=-128, var_1_15=64, var_1_16=5, var_1_17=1, var_1_1=128, var_1_2=1, var_1_3=25, var_1_4=4, var_1_8=127] [L69] RET assume_abort_if_not(var_1_2 <= 1) VAL [isInitial=1, last_1_var_1_1=128, var_1_10=0, var_1_11=128, var_1_12=24, var_1_14=-128, var_1_15=64, var_1_16=5, var_1_17=1, var_1_1=128, var_1_2=1, var_1_3=25, var_1_4=4, var_1_8=127] [L70] var_1_3 = __VERIFIER_nondet_ushort() [L71] CALL assume_abort_if_not(var_1_3 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=128, var_1_10=0, var_1_11=128, var_1_12=24, var_1_14=-128, var_1_15=64, var_1_16=5, var_1_17=1, var_1_1=128, var_1_2=1, var_1_4=4, var_1_8=127] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=128, var_1_10=0, var_1_11=128, var_1_12=24, var_1_14=-128, var_1_15=64, var_1_16=5, var_1_17=1, var_1_1=128, var_1_2=1, var_1_4=4, var_1_8=127] [L71] RET assume_abort_if_not(var_1_3 >= 0) VAL [isInitial=1, last_1_var_1_1=128, var_1_10=0, var_1_11=128, var_1_12=24, var_1_14=-128, var_1_15=64, var_1_16=5, var_1_17=1, var_1_1=128, var_1_2=1, var_1_4=4, var_1_8=127] [L72] CALL assume_abort_if_not(var_1_3 <= 65534) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=128, var_1_10=0, var_1_11=128, var_1_12=24, var_1_14=-128, var_1_15=64, var_1_16=5, var_1_17=1, var_1_1=128, var_1_2=1, var_1_3=-65535, var_1_4=4, var_1_8=127] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=128, var_1_10=0, var_1_11=128, var_1_12=24, var_1_14=-128, var_1_15=64, var_1_16=5, var_1_17=1, var_1_1=128, var_1_2=1, var_1_3=-65535, var_1_4=4, var_1_8=127] [L72] RET assume_abort_if_not(var_1_3 <= 65534) VAL [isInitial=1, last_1_var_1_1=128, var_1_10=0, var_1_11=128, var_1_12=24, var_1_14=-128, var_1_15=64, var_1_16=5, var_1_17=1, var_1_1=128, var_1_2=1, var_1_3=-65535, var_1_4=4, var_1_8=127] [L73] var_1_4 = __VERIFIER_nondet_uchar() [L74] CALL assume_abort_if_not(var_1_4 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=128, var_1_10=0, var_1_11=128, var_1_12=24, var_1_14=-128, var_1_15=64, var_1_16=5, var_1_17=1, var_1_1=128, var_1_2=1, var_1_3=-65535, var_1_8=127] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=128, var_1_10=0, var_1_11=128, var_1_12=24, var_1_14=-128, var_1_15=64, var_1_16=5, var_1_17=1, var_1_1=128, var_1_2=1, var_1_3=-65535, var_1_8=127] [L74] RET assume_abort_if_not(var_1_4 >= 0) VAL [isInitial=1, last_1_var_1_1=128, var_1_10=0, var_1_11=128, var_1_12=24, var_1_14=-128, var_1_15=64, var_1_16=5, var_1_17=1, var_1_1=128, var_1_2=1, var_1_3=-65535, var_1_8=127] [L75] CALL assume_abort_if_not(var_1_4 <= 255) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=128, var_1_10=0, var_1_11=128, var_1_12=24, var_1_14=-128, var_1_15=64, var_1_16=5, var_1_17=1, var_1_1=128, var_1_2=1, var_1_3=-65535, var_1_8=127] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=128, var_1_10=0, var_1_11=128, var_1_12=24, var_1_14=-128, var_1_15=64, var_1_16=5, var_1_17=1, var_1_1=128, var_1_2=1, var_1_3=-65535, var_1_8=127] [L75] RET assume_abort_if_not(var_1_4 <= 255) VAL [isInitial=1, last_1_var_1_1=128, var_1_10=0, var_1_11=128, var_1_12=24, var_1_14=-128, var_1_15=64, var_1_16=5, var_1_17=1, var_1_1=128, var_1_2=1, var_1_3=-65535, var_1_8=127] [L76] CALL assume_abort_if_not(var_1_4 != 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=128, var_1_10=0, var_1_11=128, var_1_12=24, var_1_14=-128, var_1_15=64, var_1_16=5, var_1_17=1, var_1_1=128, var_1_2=1, var_1_3=-65535, var_1_4=-255, var_1_8=127] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=128, var_1_10=0, var_1_11=128, var_1_12=24, var_1_14=-128, var_1_15=64, var_1_16=5, var_1_17=1, var_1_1=128, var_1_2=1, var_1_3=-65535, var_1_4=-255, var_1_8=127] [L76] RET assume_abort_if_not(var_1_4 != 0) VAL [isInitial=1, last_1_var_1_1=128, var_1_10=0, var_1_11=128, var_1_12=24, var_1_14=-128, var_1_15=64, var_1_16=5, var_1_17=1, var_1_1=128, var_1_2=1, var_1_3=-65535, var_1_4=-255, var_1_8=127] [L77] var_1_10 = __VERIFIER_nondet_long() [L78] CALL assume_abort_if_not(var_1_10 >= -2147483648) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=128, var_1_10=1, var_1_11=128, var_1_12=24, var_1_14=-128, var_1_15=64, var_1_16=5, var_1_17=1, var_1_1=128, var_1_2=1, var_1_3=-65535, var_1_4=-255, var_1_8=127] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=128, var_1_10=1, var_1_11=128, var_1_12=24, var_1_14=-128, var_1_15=64, var_1_16=5, var_1_17=1, var_1_1=128, var_1_2=1, var_1_3=-65535, var_1_4=-255, var_1_8=127] [L78] RET assume_abort_if_not(var_1_10 >= -2147483648) VAL [isInitial=1, last_1_var_1_1=128, var_1_10=1, var_1_11=128, var_1_12=24, var_1_14=-128, var_1_15=64, var_1_16=5, var_1_17=1, var_1_1=128, var_1_2=1, var_1_3=-65535, var_1_4=-255, var_1_8=127] [L79] CALL assume_abort_if_not(var_1_10 <= 2147483647) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=128, var_1_10=1, var_1_11=128, var_1_12=24, var_1_14=-128, var_1_15=64, var_1_16=5, var_1_17=1, var_1_1=128, var_1_2=1, var_1_3=-65535, var_1_4=-255, var_1_8=127] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=128, var_1_10=1, var_1_11=128, var_1_12=24, var_1_14=-128, var_1_15=64, var_1_16=5, var_1_17=1, var_1_1=128, var_1_2=1, var_1_3=-65535, var_1_4=-255, var_1_8=127] [L79] RET assume_abort_if_not(var_1_10 <= 2147483647) VAL [isInitial=1, last_1_var_1_1=128, var_1_10=1, var_1_11=128, var_1_12=24, var_1_14=-128, var_1_15=64, var_1_16=5, var_1_17=1, var_1_1=128, var_1_2=1, var_1_3=-65535, var_1_4=-255, var_1_8=127] [L80] var_1_11 = __VERIFIER_nondet_long() [L81] CALL assume_abort_if_not(var_1_11 >= -2147483648) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=128, var_1_10=1, var_1_11=0, var_1_12=24, var_1_14=-128, var_1_15=64, var_1_16=5, var_1_17=1, var_1_1=128, var_1_2=1, var_1_3=-65535, var_1_4=-255, var_1_8=127] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=128, var_1_10=1, var_1_11=0, var_1_12=24, var_1_14=-128, var_1_15=64, var_1_16=5, var_1_17=1, var_1_1=128, var_1_2=1, var_1_3=-65535, var_1_4=-255, var_1_8=127] [L81] RET assume_abort_if_not(var_1_11 >= -2147483648) VAL [isInitial=1, last_1_var_1_1=128, var_1_10=1, var_1_11=0, var_1_12=24, var_1_14=-128, var_1_15=64, var_1_16=5, var_1_17=1, var_1_1=128, var_1_2=1, var_1_3=-65535, var_1_4=-255, var_1_8=127] [L82] CALL assume_abort_if_not(var_1_11 <= 2147483647) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=128, var_1_10=1, var_1_11=0, var_1_12=24, var_1_14=-128, var_1_15=64, var_1_16=5, var_1_17=1, var_1_1=128, var_1_2=1, var_1_3=-65535, var_1_4=-255, var_1_8=127] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=128, var_1_10=1, var_1_11=0, var_1_12=24, var_1_14=-128, var_1_15=64, var_1_16=5, var_1_17=1, var_1_1=128, var_1_2=1, var_1_3=-65535, var_1_4=-255, var_1_8=127] [L82] RET assume_abort_if_not(var_1_11 <= 2147483647) VAL [isInitial=1, last_1_var_1_1=128, var_1_10=1, var_1_11=0, var_1_12=24, var_1_14=-128, var_1_15=64, var_1_16=5, var_1_17=1, var_1_1=128, var_1_2=1, var_1_3=-65535, var_1_4=-255, var_1_8=127] [L83] var_1_16 = __VERIFIER_nondet_char() [L84] CALL assume_abort_if_not(var_1_16 >= -127) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=128, var_1_10=1, var_1_11=0, var_1_12=24, var_1_14=-128, var_1_15=64, var_1_16=2, var_1_17=1, var_1_1=128, var_1_2=1, var_1_3=-65535, var_1_4=-255, var_1_8=127] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=128, var_1_10=1, var_1_11=0, var_1_12=24, var_1_14=-128, var_1_15=64, var_1_16=2, var_1_17=1, var_1_1=128, var_1_2=1, var_1_3=-65535, var_1_4=-255, var_1_8=127] [L84] RET assume_abort_if_not(var_1_16 >= -127) VAL [isInitial=1, last_1_var_1_1=128, var_1_10=1, var_1_11=0, var_1_12=24, var_1_14=-128, var_1_15=64, var_1_16=2, var_1_17=1, var_1_1=128, var_1_2=1, var_1_3=-65535, var_1_4=-255, var_1_8=127] [L85] CALL assume_abort_if_not(var_1_16 <= 126) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=128, var_1_10=1, var_1_11=0, var_1_12=24, var_1_14=-128, var_1_15=64, var_1_16=2, var_1_17=1, var_1_1=128, var_1_2=1, var_1_3=-65535, var_1_4=-255, var_1_8=127] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=128, var_1_10=1, var_1_11=0, var_1_12=24, var_1_14=-128, var_1_15=64, var_1_16=2, var_1_17=1, var_1_1=128, var_1_2=1, var_1_3=-65535, var_1_4=-255, var_1_8=127] [L85] RET assume_abort_if_not(var_1_16 <= 126) VAL [isInitial=1, last_1_var_1_1=128, var_1_10=1, var_1_11=0, var_1_12=24, var_1_14=-128, var_1_15=64, var_1_16=2, var_1_17=1, var_1_1=128, var_1_2=1, var_1_3=-65535, var_1_4=-255, var_1_8=127] [L99] RET updateVariables() [L100] CALL step() [L38] var_1_14 = 200 [L39] var_1_15 = var_1_16 [L40] var_1_17 = var_1_10 [L41] signed long int stepLocal_0 = var_1_3 / var_1_4; VAL [isInitial=1, last_1_var_1_1=128, stepLocal_0=1, var_1_10=1, var_1_11=0, var_1_12=24, var_1_14=200, var_1_15=2, var_1_16=2, var_1_17=1, var_1_1=128, var_1_2=1, var_1_3=-65535, var_1_4=-255, var_1_8=127] [L42] COND TRUE \read(var_1_2) [L43] var_1_1 = (((((((var_1_3) < 0 ) ? -(var_1_3) : (var_1_3))) < 0 ) ? -((((var_1_3) < 0 ) ? -(var_1_3) : (var_1_3))) : ((((var_1_3) < 0 ) ? -(var_1_3) : (var_1_3))))) VAL [isInitial=1, last_1_var_1_1=128, stepLocal_0=1, var_1_10=1, var_1_11=0, var_1_12=24, var_1_14=200, var_1_15=2, var_1_16=2, var_1_17=1, var_1_1=1, var_1_2=1, var_1_3=-65535, var_1_4=-255, var_1_8=127] [L51] signed long int stepLocal_2 = var_1_3 + var_1_1; VAL [isInitial=1, last_1_var_1_1=128, stepLocal_0=1, stepLocal_2=2, var_1_10=1, var_1_11=0, var_1_12=24, var_1_14=200, var_1_15=2, var_1_16=2, var_1_17=1, var_1_1=1, var_1_2=1, var_1_3=-65535, var_1_4=-255, var_1_8=127] [L52] EXPR var_1_14 ^ var_1_15 VAL [isInitial=1, last_1_var_1_1=128, stepLocal_0=1, stepLocal_2=2, var_1_10=1, var_1_11=0, var_1_12=24, var_1_14=200, var_1_15=2, var_1_16=2, var_1_17=1, var_1_1=1, var_1_2=1, var_1_3=-65535, var_1_4=-255, var_1_8=127] [L52] signed long int stepLocal_1 = var_1_14 ^ var_1_15; [L53] COND TRUE var_1_15 <= stepLocal_2 VAL [isInitial=1, last_1_var_1_1=128, stepLocal_0=1, stepLocal_1=1, var_1_10=1, var_1_11=0, var_1_12=24, var_1_14=200, var_1_15=2, var_1_16=2, var_1_17=1, var_1_1=1, var_1_2=1, var_1_3=-65535, var_1_4=-255, var_1_8=127] [L54] COND TRUE var_1_1 == stepLocal_1 [L55] var_1_8 = (((((var_1_10) < 0 ) ? -(var_1_10) : (var_1_10))) + var_1_11) VAL [isInitial=1, last_1_var_1_1=128, stepLocal_0=1, var_1_10=1, var_1_11=0, var_1_12=24, var_1_14=200, var_1_15=2, var_1_16=2, var_1_17=1, var_1_1=1, var_1_2=1, var_1_3=-65535, var_1_4=-255, var_1_8=1] [L62] COND FALSE !(var_1_15 > var_1_15) VAL [isInitial=1, last_1_var_1_1=128, stepLocal_0=1, var_1_10=1, var_1_11=0, var_1_12=24, var_1_14=200, var_1_15=2, var_1_16=2, var_1_17=1, var_1_1=1, var_1_2=1, var_1_3=-65535, var_1_4=-255, var_1_8=1] [L100] RET step() [L101] CALL, EXPR property() [L91] EXPR (var_1_2 ? (var_1_1 == ((unsigned short int) (((((((var_1_3) < 0 ) ? -(var_1_3) : (var_1_3))) < 0 ) ? -((((var_1_3) < 0 ) ? -(var_1_3) : (var_1_3))) : ((((var_1_3) < 0 ) ? -(var_1_3) : (var_1_3))))))) : (((var_1_3 / var_1_4) >= (((((last_1_var_1_1 * var_1_15)) < ((~ last_1_var_1_1))) ? ((last_1_var_1_1 * var_1_15)) : ((~ last_1_var_1_1))))) ? (var_1_1 == ((unsigned short int) var_1_4)) : (var_1_1 == ((unsigned short int) var_1_3)))) && ((var_1_15 <= (var_1_3 + var_1_1)) ? ((var_1_1 == (var_1_14 ^ var_1_15)) ? (var_1_8 == ((signed long int) (((((var_1_10) < 0 ) ? -(var_1_10) : (var_1_10))) + var_1_11))) : (var_1_8 == ((signed long int) var_1_11))) : (var_1_8 == ((signed long int) var_1_10))) VAL [isInitial=1, last_1_var_1_1=128, var_1_10=1, var_1_11=0, var_1_12=24, var_1_14=200, var_1_15=2, var_1_16=2, var_1_17=1, var_1_1=1, var_1_2=1, var_1_3=-65535, var_1_4=-255, var_1_8=1] [L91] EXPR (var_1_15 <= (var_1_3 + var_1_1)) ? ((var_1_1 == (var_1_14 ^ var_1_15)) ? (var_1_8 == ((signed long int) (((((var_1_10) < 0 ) ? -(var_1_10) : (var_1_10))) + var_1_11))) : (var_1_8 == ((signed long int) var_1_11))) : (var_1_8 == ((signed long int) var_1_10)) VAL [isInitial=1, last_1_var_1_1=128, var_1_10=1, var_1_11=0, var_1_12=24, var_1_14=200, var_1_15=2, var_1_16=2, var_1_17=1, var_1_1=1, var_1_2=1, var_1_3=-65535, var_1_4=-255, var_1_8=1] [L91] EXPR var_1_14 ^ var_1_15 VAL [isInitial=1, last_1_var_1_1=128, var_1_10=1, var_1_11=0, var_1_12=24, var_1_14=200, var_1_15=2, var_1_16=2, var_1_17=1, var_1_1=1, var_1_2=1, var_1_3=-65535, var_1_4=-255, var_1_8=1] [L91] EXPR (var_1_15 <= (var_1_3 + var_1_1)) ? ((var_1_1 == (var_1_14 ^ var_1_15)) ? (var_1_8 == ((signed long int) (((((var_1_10) < 0 ) ? -(var_1_10) : (var_1_10))) + var_1_11))) : (var_1_8 == ((signed long int) var_1_11))) : (var_1_8 == ((signed long int) var_1_10)) VAL [isInitial=1, last_1_var_1_1=128, var_1_10=1, var_1_11=0, var_1_12=24, var_1_14=200, var_1_15=2, var_1_16=2, var_1_17=1, var_1_1=1, var_1_2=1, var_1_3=-65535, var_1_4=-255, var_1_8=1] [L91] EXPR (var_1_2 ? (var_1_1 == ((unsigned short int) (((((((var_1_3) < 0 ) ? -(var_1_3) : (var_1_3))) < 0 ) ? -((((var_1_3) < 0 ) ? -(var_1_3) : (var_1_3))) : ((((var_1_3) < 0 ) ? -(var_1_3) : (var_1_3))))))) : (((var_1_3 / var_1_4) >= (((((last_1_var_1_1 * var_1_15)) < ((~ last_1_var_1_1))) ? ((last_1_var_1_1 * var_1_15)) : ((~ last_1_var_1_1))))) ? (var_1_1 == ((unsigned short int) var_1_4)) : (var_1_1 == ((unsigned short int) var_1_3)))) && ((var_1_15 <= (var_1_3 + var_1_1)) ? ((var_1_1 == (var_1_14 ^ var_1_15)) ? (var_1_8 == ((signed long int) (((((var_1_10) < 0 ) ? -(var_1_10) : (var_1_10))) + var_1_11))) : (var_1_8 == ((signed long int) var_1_11))) : (var_1_8 == ((signed long int) var_1_10))) VAL [isInitial=1, last_1_var_1_1=128, var_1_10=1, var_1_11=0, var_1_12=24, var_1_14=200, var_1_15=2, var_1_16=2, var_1_17=1, var_1_1=1, var_1_2=1, var_1_3=-65535, var_1_4=-255, var_1_8=1] [L91-L92] return (((((var_1_2 ? (var_1_1 == ((unsigned short int) (((((((var_1_3) < 0 ) ? -(var_1_3) : (var_1_3))) < 0 ) ? -((((var_1_3) < 0 ) ? -(var_1_3) : (var_1_3))) : ((((var_1_3) < 0 ) ? -(var_1_3) : (var_1_3))))))) : (((var_1_3 / var_1_4) >= (((((last_1_var_1_1 * var_1_15)) < ((~ last_1_var_1_1))) ? ((last_1_var_1_1 * var_1_15)) : ((~ last_1_var_1_1))))) ? (var_1_1 == ((unsigned short int) var_1_4)) : (var_1_1 == ((unsigned short int) var_1_3)))) && ((var_1_15 <= (var_1_3 + var_1_1)) ? ((var_1_1 == (var_1_14 ^ var_1_15)) ? (var_1_8 == ((signed long int) (((((var_1_10) < 0 ) ? -(var_1_10) : (var_1_10))) + var_1_11))) : (var_1_8 == ((signed long int) var_1_11))) : (var_1_8 == ((signed long int) var_1_10)))) && ((var_1_15 > var_1_15) ? (var_1_12 == ((signed long int) ((((var_1_11) < (var_1_10)) ? (var_1_11) : (var_1_10))))) : 1)) && (var_1_14 == ((signed short int) 200))) && (var_1_15 == ((signed char) var_1_16))) && (var_1_17 == ((signed long int) var_1_10)) ; [L101] RET, EXPR property() [L101] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [isInitial=1, last_1_var_1_1=128, var_1_10=1, var_1_11=0, var_1_12=24, var_1_14=200, var_1_15=2, var_1_16=2, var_1_17=1, var_1_1=1, var_1_2=1, var_1_3=-65535, var_1_4=-255, var_1_8=1] [L19] reach_error() VAL [isInitial=1, last_1_var_1_1=128, var_1_10=1, var_1_11=0, var_1_12=24, var_1_14=200, var_1_15=2, var_1_16=2, var_1_17=1, var_1_1=1, var_1_2=1, var_1_3=-65535, var_1_4=-255, var_1_8=1] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 58 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 17.0s, OverallIterations: 16, TraceHistogramMax: 13, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 5.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 908 SdHoareTripleChecker+Valid, 3.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 908 mSDsluCounter, 3424 SdHoareTripleChecker+Invalid, 3.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2203 mSDsCounter, 54 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1996 IncrementalHoareTripleChecker+Invalid, 2050 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 54 mSolverCounterUnsat, 1221 mSDtfsCounter, 1996 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 201 GetRequests, 130 SyntacticMatches, 0 SemanticMatches, 71 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 2.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=132occurred in iteration=12, InterpolantAutomatonStates: 78, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 15 MinimizatonAttempts, 296 StatesRemovedByMinimization, 13 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 10.3s InterpolantComputationTime, 1674 NumberOfCodeBlocks, 1674 NumberOfCodeBlocksAsserted, 18 NumberOfCheckSat, 1460 ConstructedInterpolants, 0 QuantifiedInterpolants, 4876 SizeOfPredicates, 0 NumberOfNonLiveVariables, 218 ConjunctsInSsa, 1 ConjunctsInUnsatCore, 16 InterpolantComputations, 15 PerfectInterpolantSequences, 4968/4992 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 02:02:54,065 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b789ee6-db6b-4943-a41a-593b41c82e06/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b789ee6-db6b-4943-a41a-593b41c82e06/bin/uautomizer-verify-LYvppIcaGC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b789ee6-db6b-4943-a41a-593b41c82e06/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_6b789ee6-db6b-4943-a41a-593b41c82e06/bin/uautomizer-verify-LYvppIcaGC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b789ee6-db6b-4943-a41a-593b41c82e06/bin/uautomizer-verify-LYvppIcaGC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-83.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b789ee6-db6b-4943-a41a-593b41c82e06/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_6b789ee6-db6b-4943-a41a-593b41c82e06/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 9f9164e1a34b1b6bc15e6d6c10636cd9af69b42bd441271521d7273f80c38ea6 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-6497de0 [2024-11-24 02:02:56,730 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-24 02:02:56,844 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b789ee6-db6b-4943-a41a-593b41c82e06/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-11-24 02:02:56,854 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-24 02:02:56,854 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-24 02:02:56,938 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-24 02:02:56,939 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-24 02:02:56,941 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-24 02:02:56,941 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-24 02:02:56,943 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-24 02:02:56,943 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-24 02:02:56,943 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-24 02:02:56,944 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-24 02:02:56,944 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-24 02:02:56,944 INFO L153 SettingsManager]: * Use SBE=true [2024-11-24 02:02:56,944 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-24 02:02:56,944 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-24 02:02:56,944 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-24 02:02:56,944 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-24 02:02:56,944 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-24 02:02:56,945 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-24 02:02:56,945 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-24 02:02:56,945 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-24 02:02:56,945 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-24 02:02:56,945 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-24 02:02:56,945 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-24 02:02:56,945 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-24 02:02:56,945 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-24 02:02:56,945 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-24 02:02:56,945 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-24 02:02:56,946 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-24 02:02:56,946 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-24 02:02:56,946 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-24 02:02:56,946 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-24 02:02:56,946 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 02:02:56,946 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-24 02:02:56,946 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-24 02:02:56,946 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-24 02:02:56,946 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-24 02:02:56,946 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 02:02:56,947 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-24 02:02:56,947 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-24 02:02:56,953 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-24 02:02:56,953 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-24 02:02:56,954 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2024-11-24 02:02:56,954 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-24 02:02:56,954 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-24 02:02:56,954 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-24 02:02:56,954 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-24 02:02:56,954 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-24 02:02:56,954 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_6b789ee6-db6b-4943-a41a-593b41c82e06/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 -> 9f9164e1a34b1b6bc15e6d6c10636cd9af69b42bd441271521d7273f80c38ea6 [2024-11-24 02:02:57,285 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-24 02:02:57,295 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-24 02:02:57,300 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-24 02:02:57,303 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-24 02:02:57,303 INFO L274 PluginConnector]: CDTParser initialized [2024-11-24 02:02:57,304 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b789ee6-db6b-4943-a41a-593b41c82e06/bin/uautomizer-verify-LYvppIcaGC/../../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-83.i [2024-11-24 02:03:00,257 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b789ee6-db6b-4943-a41a-593b41c82e06/bin/uautomizer-verify-LYvppIcaGC/data/7dd5b4713/dc0dfb586e624031901c5823afe0cb59/FLAG8d379408c [2024-11-24 02:03:00,515 INFO L384 CDTParser]: Found 1 translation units. [2024-11-24 02:03:00,516 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b789ee6-db6b-4943-a41a-593b41c82e06/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-83.i [2024-11-24 02:03:00,527 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b789ee6-db6b-4943-a41a-593b41c82e06/bin/uautomizer-verify-LYvppIcaGC/data/7dd5b4713/dc0dfb586e624031901c5823afe0cb59/FLAG8d379408c [2024-11-24 02:03:00,550 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b789ee6-db6b-4943-a41a-593b41c82e06/bin/uautomizer-verify-LYvppIcaGC/data/7dd5b4713/dc0dfb586e624031901c5823afe0cb59 [2024-11-24 02:03:00,555 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-24 02:03:00,557 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-24 02:03:00,561 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-24 02:03:00,561 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-24 02:03:00,566 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-24 02:03:00,567 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 02:03:00" (1/1) ... [2024-11-24 02:03:00,570 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4f728de5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 02:03:00, skipping insertion in model container [2024-11-24 02:03:00,570 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 02:03:00" (1/1) ... [2024-11-24 02:03:00,592 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-24 02:03:00,769 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_6b789ee6-db6b-4943-a41a-593b41c82e06/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-83.i[916,929] [2024-11-24 02:03:00,824 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 02:03:00,847 INFO L200 MainTranslator]: Completed pre-run [2024-11-24 02:03:00,860 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_6b789ee6-db6b-4943-a41a-593b41c82e06/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-83.i[916,929] [2024-11-24 02:03:00,898 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 02:03:00,921 INFO L204 MainTranslator]: Completed translation [2024-11-24 02:03:00,921 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 02:03:00 WrapperNode [2024-11-24 02:03:00,922 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-24 02:03:00,922 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-24 02:03:00,923 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-24 02:03:00,924 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-24 02:03:00,935 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 02:03:00" (1/1) ... [2024-11-24 02:03:00,951 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 02:03:00" (1/1) ... [2024-11-24 02:03:00,980 INFO L138 Inliner]: procedures = 27, calls = 26, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 96 [2024-11-24 02:03:00,981 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-24 02:03:00,981 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-24 02:03:00,981 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-24 02:03:00,981 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-24 02:03:00,988 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 02:03:00" (1/1) ... [2024-11-24 02:03:00,989 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 02:03:00" (1/1) ... [2024-11-24 02:03:00,992 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 02:03:00" (1/1) ... [2024-11-24 02:03:01,002 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 02:03:01,003 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 02:03:00" (1/1) ... [2024-11-24 02:03:01,003 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 02:03:00" (1/1) ... [2024-11-24 02:03:01,011 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 02:03:00" (1/1) ... [2024-11-24 02:03:01,012 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 02:03:00" (1/1) ... [2024-11-24 02:03:01,015 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 02:03:00" (1/1) ... [2024-11-24 02:03:01,017 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 02:03:00" (1/1) ... [2024-11-24 02:03:01,018 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 02:03:00" (1/1) ... [2024-11-24 02:03:01,020 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-24 02:03:01,021 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-24 02:03:01,021 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-24 02:03:01,021 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-24 02:03:01,023 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 02:03:00" (1/1) ... [2024-11-24 02:03:01,034 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 02:03:01,049 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b789ee6-db6b-4943-a41a-593b41c82e06/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 02:03:01,063 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b789ee6-db6b-4943-a41a-593b41c82e06/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-24 02:03:01,071 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b789ee6-db6b-4943-a41a-593b41c82e06/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-24 02:03:01,094 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-24 02:03:01,095 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-24 02:03:01,095 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-24 02:03:01,095 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-24 02:03:01,095 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-24 02:03:01,096 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-24 02:03:01,193 INFO L234 CfgBuilder]: Building ICFG [2024-11-24 02:03:01,195 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-24 02:03:01,568 INFO L? ?]: Removed 14 outVars from TransFormulas that were not future-live. [2024-11-24 02:03:01,568 INFO L283 CfgBuilder]: Performing block encoding [2024-11-24 02:03:01,579 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-24 02:03:01,579 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-24 02:03:01,579 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 02:03:01 BoogieIcfgContainer [2024-11-24 02:03:01,579 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-24 02:03:01,582 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-24 02:03:01,583 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-24 02:03:01,588 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-24 02:03:01,588 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 02:03:00" (1/3) ... [2024-11-24 02:03:01,589 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@629afa29 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 02:03:01, skipping insertion in model container [2024-11-24 02:03:01,589 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 02:03:00" (2/3) ... [2024-11-24 02:03:01,589 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@629afa29 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 02:03:01, skipping insertion in model container [2024-11-24 02:03:01,589 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 02:03:01" (3/3) ... [2024-11-24 02:03:01,591 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_floatingpointinfluence_no-floats_file-83.i [2024-11-24 02:03:01,607 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-24 02:03:01,609 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_floatingpointinfluence_no-floats_file-83.i that has 2 procedures, 44 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-24 02:03:01,675 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-24 02:03:01,689 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;@659e88fe, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-24 02:03:01,689 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-24 02:03:01,693 INFO L276 IsEmpty]: Start isEmpty. Operand has 44 states, 28 states have (on average 1.3571428571428572) internal successors, (38), 29 states have internal predecessors, (38), 13 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2024-11-24 02:03:01,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-11-24 02:03:01,705 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 02:03:01,706 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:03:01,706 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 02:03:01,711 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 02:03:01,713 INFO L85 PathProgramCache]: Analyzing trace with hash 1160138568, now seen corresponding path program 1 times [2024-11-24 02:03:01,725 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-24 02:03:01,726 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1376617771] [2024-11-24 02:03:01,726 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 02:03:01,726 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 02:03:01,727 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b789ee6-db6b-4943-a41a-593b41c82e06/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 02:03:01,731 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b789ee6-db6b-4943-a41a-593b41c82e06/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 02:03:01,733 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b789ee6-db6b-4943-a41a-593b41c82e06/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-24 02:03:01,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 02:03:01,915 INFO L256 TraceCheckSpWp]: Trace formula consists of 144 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-24 02:03:01,924 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 02:03:01,992 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 288 trivial. 0 not checked. [2024-11-24 02:03:01,993 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 02:03:01,995 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-24 02:03:01,996 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1376617771] [2024-11-24 02:03:01,996 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1376617771] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 02:03:01,996 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 02:03:01,996 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-24 02:03:01,998 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1507403474] [2024-11-24 02:03:01,999 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 02:03:02,003 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-24 02:03:02,004 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-24 02:03:02,025 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-24 02:03:02,025 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-24 02:03:02,027 INFO L87 Difference]: Start difference. First operand has 44 states, 28 states have (on average 1.3571428571428572) internal successors, (38), 29 states have internal predecessors, (38), 13 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) 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, (13), 2 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-24 02:03:02,055 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 02:03:02,056 INFO L93 Difference]: Finished difference Result 81 states and 135 transitions. [2024-11-24 02:03:02,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-24 02:03:02,058 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, (13), 2 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 2 states have call successors, (13) Word has length 84 [2024-11-24 02:03:02,058 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 02:03:02,064 INFO L225 Difference]: With dead ends: 81 [2024-11-24 02:03:02,064 INFO L226 Difference]: Without dead ends: 40 [2024-11-24 02:03:02,068 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 83 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 02:03:02,074 INFO L435 NwaCegarLoop]: 56 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, 56 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 02:03:02,074 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 02:03:02,089 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2024-11-24 02:03:02,107 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 40. [2024-11-24 02:03:02,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40 states, 25 states have (on average 1.2) internal successors, (30), 25 states have internal predecessors, (30), 13 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2024-11-24 02:03:02,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 56 transitions. [2024-11-24 02:03:02,119 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 56 transitions. Word has length 84 [2024-11-24 02:03:02,120 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 02:03:02,120 INFO L471 AbstractCegarLoop]: Abstraction has 40 states and 56 transitions. [2024-11-24 02:03:02,121 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, (13), 2 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-24 02:03:02,121 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 56 transitions. [2024-11-24 02:03:02,125 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-11-24 02:03:02,125 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 02:03:02,126 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:03:02,138 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b789ee6-db6b-4943-a41a-593b41c82e06/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-24 02:03:02,327 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b789ee6-db6b-4943-a41a-593b41c82e06/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 02:03:02,327 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 02:03:02,328 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 02:03:02,328 INFO L85 PathProgramCache]: Analyzing trace with hash 853426634, now seen corresponding path program 1 times [2024-11-24 02:03:02,329 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-24 02:03:02,329 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [685126768] [2024-11-24 02:03:02,329 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 02:03:02,329 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 02:03:02,329 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b789ee6-db6b-4943-a41a-593b41c82e06/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 02:03:02,331 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b789ee6-db6b-4943-a41a-593b41c82e06/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 02:03:02,332 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b789ee6-db6b-4943-a41a-593b41c82e06/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-24 02:03:02,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 02:03:02,488 INFO L256 TraceCheckSpWp]: Trace formula consists of 144 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-24 02:03:02,504 INFO L279 TraceCheckSpWp]: Computing forward predicates...