./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_50-while_file-4.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bb8bd10-436e-4d18-9aa1-86a0ea2f26c6/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bb8bd10-436e-4d18-9aa1-86a0ea2f26c6/bin/uautomizer-verify-aQ6SnzHsRB/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bb8bd10-436e-4d18-9aa1-86a0ea2f26c6/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bb8bd10-436e-4d18-9aa1-86a0ea2f26c6/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_50-while_file-4.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bb8bd10-436e-4d18-9aa1-86a0ea2f26c6/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bb8bd10-436e-4d18-9aa1-86a0ea2f26c6/bin/uautomizer-verify-aQ6SnzHsRB --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 fb80e4f0533bc0d87718a3c946d158e7005d734d62d8e11c16c799aba4b0f82b --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-27 20:30:18,045 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-27 20:30:18,125 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bb8bd10-436e-4d18-9aa1-86a0ea2f26c6/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-27 20:30:18,130 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-27 20:30:18,131 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-27 20:30:18,174 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-27 20:30:18,176 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-27 20:30:18,176 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-27 20:30:18,177 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-27 20:30:18,177 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-27 20:30:18,177 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-27 20:30:18,177 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-27 20:30:18,178 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-27 20:30:18,178 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-27 20:30:18,179 INFO L153 SettingsManager]: * Use SBE=true [2024-11-27 20:30:18,179 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-27 20:30:18,179 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-27 20:30:18,179 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-27 20:30:18,179 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-27 20:30:18,179 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-27 20:30:18,179 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-27 20:30:18,179 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-27 20:30:18,180 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-27 20:30:18,180 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-27 20:30:18,180 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-27 20:30:18,180 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-27 20:30:18,181 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-27 20:30:18,181 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-27 20:30:18,181 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-27 20:30:18,181 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-27 20:30:18,182 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-27 20:30:18,182 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-27 20:30:18,182 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 20:30:18,182 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-27 20:30:18,182 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-27 20:30:18,182 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-27 20:30:18,182 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-27 20:30:18,183 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 20:30:18,183 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-27 20:30:18,183 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-27 20:30:18,183 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-27 20:30:18,183 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-27 20:30:18,183 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-27 20:30:18,183 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-27 20:30:18,183 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-27 20:30:18,184 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-27 20:30:18,184 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-27 20:30:18,184 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-27 20:30:18,184 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_4bb8bd10-436e-4d18-9aa1-86a0ea2f26c6/bin/uautomizer-verify-aQ6SnzHsRB 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 -> fb80e4f0533bc0d87718a3c946d158e7005d734d62d8e11c16c799aba4b0f82b [2024-11-27 20:30:18,529 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-27 20:30:18,542 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-27 20:30:18,546 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-27 20:30:18,547 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-27 20:30:18,548 INFO L274 PluginConnector]: CDTParser initialized [2024-11-27 20:30:18,549 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bb8bd10-436e-4d18-9aa1-86a0ea2f26c6/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_50-while_file-4.i [2024-11-27 20:30:21,659 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bb8bd10-436e-4d18-9aa1-86a0ea2f26c6/bin/uautomizer-verify-aQ6SnzHsRB/data/da8fb4943/62229742224245eeb7ba5ebb357ae9e1/FLAG5d18e2063 [2024-11-27 20:30:21,957 INFO L384 CDTParser]: Found 1 translation units. [2024-11-27 20:30:21,961 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bb8bd10-436e-4d18-9aa1-86a0ea2f26c6/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_50-while_file-4.i [2024-11-27 20:30:21,971 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bb8bd10-436e-4d18-9aa1-86a0ea2f26c6/bin/uautomizer-verify-aQ6SnzHsRB/data/da8fb4943/62229742224245eeb7ba5ebb357ae9e1/FLAG5d18e2063 [2024-11-27 20:30:21,985 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bb8bd10-436e-4d18-9aa1-86a0ea2f26c6/bin/uautomizer-verify-aQ6SnzHsRB/data/da8fb4943/62229742224245eeb7ba5ebb357ae9e1 [2024-11-27 20:30:21,988 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-27 20:30:21,989 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-27 20:30:21,991 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-27 20:30:21,991 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-27 20:30:21,996 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-27 20:30:21,997 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 08:30:21" (1/1) ... [2024-11-27 20:30:21,998 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@39e019c6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:30:21, skipping insertion in model container [2024-11-27 20:30:21,998 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 08:30:21" (1/1) ... [2024-11-27 20:30:22,026 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-27 20:30:22,218 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_4bb8bd10-436e-4d18-9aa1-86a0ea2f26c6/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_50-while_file-4.i[914,927] [2024-11-27 20:30:22,285 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-27 20:30:22,296 INFO L200 MainTranslator]: Completed pre-run [2024-11-27 20:30:22,307 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_4bb8bd10-436e-4d18-9aa1-86a0ea2f26c6/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_50-while_file-4.i[914,927] [2024-11-27 20:30:22,338 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-27 20:30:22,354 INFO L204 MainTranslator]: Completed translation [2024-11-27 20:30:22,354 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:30:22 WrapperNode [2024-11-27 20:30:22,354 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-27 20:30:22,356 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-27 20:30:22,356 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-27 20:30:22,356 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-27 20:30:22,363 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:30:22" (1/1) ... [2024-11-27 20:30:22,378 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:30:22" (1/1) ... [2024-11-27 20:30:22,420 INFO L138 Inliner]: procedures = 26, calls = 33, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 143 [2024-11-27 20:30:22,420 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-27 20:30:22,421 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-27 20:30:22,421 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-27 20:30:22,421 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-27 20:30:22,430 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:30:22" (1/1) ... [2024-11-27 20:30:22,431 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:30:22" (1/1) ... [2024-11-27 20:30:22,433 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:30:22" (1/1) ... [2024-11-27 20:30:22,456 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]. [2024-11-27 20:30:22,456 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:30:22" (1/1) ... [2024-11-27 20:30:22,456 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:30:22" (1/1) ... [2024-11-27 20:30:22,463 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:30:22" (1/1) ... [2024-11-27 20:30:22,464 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:30:22" (1/1) ... [2024-11-27 20:30:22,468 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:30:22" (1/1) ... [2024-11-27 20:30:22,474 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:30:22" (1/1) ... [2024-11-27 20:30:22,475 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:30:22" (1/1) ... [2024-11-27 20:30:22,479 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-27 20:30:22,480 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-27 20:30:22,480 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-27 20:30:22,480 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-27 20:30:22,483 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:30:22" (1/1) ... [2024-11-27 20:30:22,496 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 20:30:22,516 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bb8bd10-436e-4d18-9aa1-86a0ea2f26c6/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:30:22,531 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bb8bd10-436e-4d18-9aa1-86a0ea2f26c6/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-27 20:30:22,534 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bb8bd10-436e-4d18-9aa1-86a0ea2f26c6/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-27 20:30:22,560 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-27 20:30:22,560 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-27 20:30:22,561 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-27 20:30:22,561 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-27 20:30:22,561 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-27 20:30:22,561 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-27 20:30:22,633 INFO L234 CfgBuilder]: Building ICFG [2024-11-27 20:30:22,636 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-27 20:30:23,100 INFO L? ?]: Removed 20 outVars from TransFormulas that were not future-live. [2024-11-27 20:30:23,100 INFO L283 CfgBuilder]: Performing block encoding [2024-11-27 20:30:23,115 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-27 20:30:23,115 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-27 20:30:23,116 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 08:30:23 BoogieIcfgContainer [2024-11-27 20:30:23,116 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-27 20:30:23,119 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-27 20:30:23,119 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-27 20:30:23,124 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-27 20:30:23,125 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.11 08:30:21" (1/3) ... [2024-11-27 20:30:23,126 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ea728f5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 08:30:23, skipping insertion in model container [2024-11-27 20:30:23,127 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:30:22" (2/3) ... [2024-11-27 20:30:23,127 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ea728f5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 08:30:23, skipping insertion in model container [2024-11-27 20:30:23,127 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 08:30:23" (3/3) ... [2024-11-27 20:30:23,129 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_loopvsstraightlinecode_50-while_file-4.i [2024-11-27 20:30:23,146 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-27 20:30:23,151 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_loopvsstraightlinecode_50-while_file-4.i that has 2 procedures, 64 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-27 20:30:23,215 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-27 20:30:23,231 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;@50d3d7f3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-27 20:30:23,231 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-27 20:30:23,236 INFO L276 IsEmpty]: Start isEmpty. Operand has 64 states, 41 states have (on average 1.3902439024390243) internal successors, (57), 42 states have internal predecessors, (57), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-11-27 20:30:23,250 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2024-11-27 20:30:23,251 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:30:23,252 INFO L218 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:30:23,253 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:30:23,259 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:30:23,260 INFO L85 PathProgramCache]: Analyzing trace with hash -246695732, now seen corresponding path program 1 times [2024-11-27 20:30:23,269 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:30:23,269 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1199301696] [2024-11-27 20:30:23,270 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:30:23,270 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:30:23,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:30:23,679 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 38 refuted. 0 times theorem prover too weak. 722 trivial. 0 not checked. [2024-11-27 20:30:23,680 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:30:23,680 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1199301696] [2024-11-27 20:30:23,681 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1199301696] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:30:23,681 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1377978106] [2024-11-27 20:30:23,681 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:30:23,681 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:30:23,681 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bb8bd10-436e-4d18-9aa1-86a0ea2f26c6/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:30:23,686 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bb8bd10-436e-4d18-9aa1-86a0ea2f26c6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:30:23,688 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bb8bd10-436e-4d18-9aa1-86a0ea2f26c6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-27 20:30:23,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:30:23,915 INFO L256 TraceCheckSpWp]: Trace formula consists of 307 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-27 20:30:23,930 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:30:23,971 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 38 proven. 0 refuted. 0 times theorem prover too weak. 722 trivial. 0 not checked. [2024-11-27 20:30:23,972 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 20:30:23,972 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1377978106] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:30:23,972 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-27 20:30:23,973 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-27 20:30:23,974 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [274467479] [2024-11-27 20:30:23,975 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:30:23,979 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-27 20:30:23,980 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:30:24,002 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-27 20:30:24,003 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-27 20:30:24,005 INFO L87 Difference]: Start difference. First operand has 64 states, 41 states have (on average 1.3902439024390243) internal successors, (57), 42 states have internal predecessors, (57), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) Second operand has 2 states, 2 states have (on average 17.0) internal successors, (34), 2 states have internal predecessors, (34), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) [2024-11-27 20:30:24,039 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:30:24,040 INFO L93 Difference]: Finished difference Result 121 states and 208 transitions. [2024-11-27 20:30:24,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-27 20:30:24,043 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 17.0) internal successors, (34), 2 states have internal predecessors, (34), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) Word has length 129 [2024-11-27 20:30:24,043 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:30:24,050 INFO L225 Difference]: With dead ends: 121 [2024-11-27 20:30:24,050 INFO L226 Difference]: Without dead ends: 60 [2024-11-27 20:30:24,055 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 130 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-27 20:30:24,060 INFO L435 NwaCegarLoop]: 89 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, 89 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 [2024-11-27 20:30:24,062 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 89 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-27 20:30:24,076 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2024-11-27 20:30:24,096 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 60. [2024-11-27 20:30:24,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60 states, 38 states have (on average 1.2894736842105263) internal successors, (49), 38 states have internal predecessors, (49), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-11-27 20:30:24,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 89 transitions. [2024-11-27 20:30:24,106 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 89 transitions. Word has length 129 [2024-11-27 20:30:24,106 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:30:24,106 INFO L471 AbstractCegarLoop]: Abstraction has 60 states and 89 transitions. [2024-11-27 20:30:24,107 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 17.0) internal successors, (34), 2 states have internal predecessors, (34), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) [2024-11-27 20:30:24,107 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 89 transitions. [2024-11-27 20:30:24,110 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2024-11-27 20:30:24,110 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:30:24,111 INFO L218 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:30:24,120 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bb8bd10-436e-4d18-9aa1-86a0ea2f26c6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-27 20:30:24,311 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bb8bd10-436e-4d18-9aa1-86a0ea2f26c6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-11-27 20:30:24,312 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:30:24,312 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:30:24,312 INFO L85 PathProgramCache]: Analyzing trace with hash -157864659, now seen corresponding path program 1 times [2024-11-27 20:30:24,312 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:30:24,313 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [702734325] [2024-11-27 20:30:24,313 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:30:24,313 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:30:24,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:30:25,138 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-27 20:30:25,139 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:30:25,139 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [702734325] [2024-11-27 20:30:25,139 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [702734325] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:30:25,139 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:30:25,139 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 20:30:25,139 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1138002557] [2024-11-27 20:30:25,139 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:30:25,140 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 20:30:25,140 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:30:25,143 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 20:30:25,144 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 20:30:25,144 INFO L87 Difference]: Start difference. First operand 60 states and 89 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, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-27 20:30:25,260 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:30:25,260 INFO L93 Difference]: Finished difference Result 174 states and 261 transitions. [2024-11-27 20:30:25,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 20:30:25,264 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, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 130 [2024-11-27 20:30:25,264 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:30:25,267 INFO L225 Difference]: With dead ends: 174 [2024-11-27 20:30:25,267 INFO L226 Difference]: Without dead ends: 117 [2024-11-27 20:30:25,267 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 20:30:25,268 INFO L435 NwaCegarLoop]: 98 mSDtfsCounter, 47 mSDsluCounter, 73 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 171 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-27 20:30:25,269 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 171 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-27 20:30:25,269 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117 states. [2024-11-27 20:30:25,314 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117 to 115. [2024-11-27 20:30:25,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 115 states, 72 states have (on average 1.2916666666666667) internal successors, (93), 72 states have internal predecessors, (93), 40 states have call successors, (40), 2 states have call predecessors, (40), 2 states have return successors, (40), 40 states have call predecessors, (40), 40 states have call successors, (40) [2024-11-27 20:30:25,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 173 transitions. [2024-11-27 20:30:25,322 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 173 transitions. Word has length 130 [2024-11-27 20:30:25,322 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:30:25,323 INFO L471 AbstractCegarLoop]: Abstraction has 115 states and 173 transitions. [2024-11-27 20:30:25,323 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, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-27 20:30:25,323 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 173 transitions. [2024-11-27 20:30:25,327 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2024-11-27 20:30:25,328 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:30:25,328 INFO L218 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:30:25,328 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-27 20:30:25,328 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:30:25,329 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:30:25,329 INFO L85 PathProgramCache]: Analyzing trace with hash -416030097, now seen corresponding path program 1 times [2024-11-27 20:30:25,329 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:30:25,329 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [100220516] [2024-11-27 20:30:25,329 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:30:25,329 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:30:25,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:30:26,359 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-27 20:30:26,360 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:30:26,361 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [100220516] [2024-11-27 20:30:26,361 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [100220516] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:30:26,361 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:30:26,361 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-27 20:30:26,362 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1423086600] [2024-11-27 20:30:26,362 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:30:26,362 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-27 20:30:26,363 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:30:26,363 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-27 20:30:26,363 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-27 20:30:26,363 INFO L87 Difference]: Start difference. First operand 115 states and 173 transitions. Second operand has 5 states, 5 states have (on average 6.6) internal successors, (33), 5 states have internal predecessors, (33), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-27 20:30:26,500 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:30:26,501 INFO L93 Difference]: Finished difference Result 202 states and 296 transitions. [2024-11-27 20:30:26,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-27 20:30:26,502 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.6) internal successors, (33), 5 states have internal predecessors, (33), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 130 [2024-11-27 20:30:26,502 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:30:26,503 INFO L225 Difference]: With dead ends: 202 [2024-11-27 20:30:26,504 INFO L226 Difference]: Without dead ends: 145 [2024-11-27 20:30:26,504 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-27 20:30:26,505 INFO L435 NwaCegarLoop]: 83 mSDtfsCounter, 50 mSDsluCounter, 80 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 163 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-27 20:30:26,506 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [50 Valid, 163 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-27 20:30:26,507 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 145 states. [2024-11-27 20:30:26,528 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 145 to 125. [2024-11-27 20:30:26,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 125 states, 82 states have (on average 1.3170731707317074) internal successors, (108), 82 states have internal predecessors, (108), 40 states have call successors, (40), 2 states have call predecessors, (40), 2 states have return successors, (40), 40 states have call predecessors, (40), 40 states have call successors, (40) [2024-11-27 20:30:26,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 188 transitions. [2024-11-27 20:30:26,531 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 188 transitions. Word has length 130 [2024-11-27 20:30:26,532 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:30:26,532 INFO L471 AbstractCegarLoop]: Abstraction has 125 states and 188 transitions. [2024-11-27 20:30:26,532 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.6) internal successors, (33), 5 states have internal predecessors, (33), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-27 20:30:26,532 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 188 transitions. [2024-11-27 20:30:26,534 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2024-11-27 20:30:26,534 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:30:26,535 INFO L218 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:30:26,535 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-27 20:30:26,535 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:30:26,536 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:30:26,536 INFO L85 PathProgramCache]: Analyzing trace with hash -414183055, now seen corresponding path program 1 times [2024-11-27 20:30:26,536 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:30:26,536 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [333919591] [2024-11-27 20:30:26,536 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:30:26,536 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:30:26,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:30:33,380 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-27 20:30:33,380 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:30:33,380 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [333919591] [2024-11-27 20:30:33,381 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [333919591] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:30:33,381 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:30:33,381 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-27 20:30:33,381 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [408950205] [2024-11-27 20:30:33,381 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:30:33,382 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-27 20:30:33,382 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:30:33,382 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-27 20:30:33,383 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2024-11-27 20:30:33,383 INFO L87 Difference]: Start difference. First operand 125 states and 188 transitions. Second operand has 10 states, 10 states have (on average 3.3) internal successors, (33), 10 states have internal predecessors, (33), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-27 20:30:35,527 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:30:35,527 INFO L93 Difference]: Finished difference Result 412 states and 604 transitions. [2024-11-27 20:30:35,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-27 20:30:35,528 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 3.3) internal successors, (33), 10 states have internal predecessors, (33), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 130 [2024-11-27 20:30:35,529 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:30:35,531 INFO L225 Difference]: With dead ends: 412 [2024-11-27 20:30:35,531 INFO L226 Difference]: Without dead ends: 290 [2024-11-27 20:30:35,533 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=80, Invalid=160, Unknown=0, NotChecked=0, Total=240 [2024-11-27 20:30:35,533 INFO L435 NwaCegarLoop]: 83 mSDtfsCounter, 170 mSDsluCounter, 382 mSDsCounter, 0 mSdLazyCounter, 446 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 170 SdHoareTripleChecker+Valid, 465 SdHoareTripleChecker+Invalid, 451 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 446 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-27 20:30:35,534 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [170 Valid, 465 Invalid, 451 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 446 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-27 20:30:35,535 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 290 states. [2024-11-27 20:30:35,589 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 290 to 252. [2024-11-27 20:30:35,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 252 states, 182 states have (on average 1.3186813186813187) internal successors, (240), 184 states have internal predecessors, (240), 64 states have call successors, (64), 5 states have call predecessors, (64), 5 states have return successors, (64), 62 states have call predecessors, (64), 64 states have call successors, (64) [2024-11-27 20:30:35,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 252 states to 252 states and 368 transitions. [2024-11-27 20:30:35,595 INFO L78 Accepts]: Start accepts. Automaton has 252 states and 368 transitions. Word has length 130 [2024-11-27 20:30:35,595 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:30:35,595 INFO L471 AbstractCegarLoop]: Abstraction has 252 states and 368 transitions. [2024-11-27 20:30:35,596 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 3.3) internal successors, (33), 10 states have internal predecessors, (33), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-27 20:30:35,600 INFO L276 IsEmpty]: Start isEmpty. Operand 252 states and 368 transitions. [2024-11-27 20:30:35,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2024-11-27 20:30:35,602 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:30:35,602 INFO L218 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:30:35,602 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-27 20:30:35,602 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:30:35,603 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:30:35,604 INFO L85 PathProgramCache]: Analyzing trace with hash 1321620594, now seen corresponding path program 1 times [2024-11-27 20:30:35,605 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:30:35,605 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1540254328] [2024-11-27 20:30:35,605 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:30:35,605 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:30:35,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:30:35,885 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-27 20:30:35,886 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:30:35,886 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1540254328] [2024-11-27 20:30:35,886 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1540254328] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:30:35,886 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:30:35,886 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-27 20:30:35,887 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1350603580] [2024-11-27 20:30:35,887 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:30:35,887 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-27 20:30:35,887 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:30:35,888 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-27 20:30:35,888 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-27 20:30:35,888 INFO L87 Difference]: Start difference. First operand 252 states and 368 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, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-27 20:30:36,116 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:30:36,116 INFO L93 Difference]: Finished difference Result 376 states and 555 transitions. [2024-11-27 20:30:36,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 20:30:36,117 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, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 131 [2024-11-27 20:30:36,117 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:30:36,122 INFO L225 Difference]: With dead ends: 376 [2024-11-27 20:30:36,122 INFO L226 Difference]: Without dead ends: 309 [2024-11-27 20:30:36,123 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-27 20:30:36,125 INFO L435 NwaCegarLoop]: 97 mSDtfsCounter, 73 mSDsluCounter, 149 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 73 SdHoareTripleChecker+Valid, 246 SdHoareTripleChecker+Invalid, 94 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-27 20:30:36,126 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [73 Valid, 246 Invalid, 94 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-27 20:30:36,130 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 309 states. [2024-11-27 20:30:36,182 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 309 to 307. [2024-11-27 20:30:36,182 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 307 states, 216 states have (on average 1.3148148148148149) internal successors, (284), 218 states have internal predecessors, (284), 84 states have call successors, (84), 6 states have call predecessors, (84), 6 states have return successors, (84), 82 states have call predecessors, (84), 84 states have call successors, (84) [2024-11-27 20:30:36,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 307 states to 307 states and 452 transitions. [2024-11-27 20:30:36,189 INFO L78 Accepts]: Start accepts. Automaton has 307 states and 452 transitions. Word has length 131 [2024-11-27 20:30:36,190 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:30:36,190 INFO L471 AbstractCegarLoop]: Abstraction has 307 states and 452 transitions. [2024-11-27 20:30:36,190 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, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-27 20:30:36,190 INFO L276 IsEmpty]: Start isEmpty. Operand 307 states and 452 transitions. [2024-11-27 20:30:36,191 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2024-11-27 20:30:36,191 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:30:36,191 INFO L218 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:30:36,192 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-27 20:30:36,192 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:30:36,192 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:30:36,192 INFO L85 PathProgramCache]: Analyzing trace with hash 1063455156, now seen corresponding path program 1 times [2024-11-27 20:30:36,192 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:30:36,192 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1227406714] [2024-11-27 20:30:36,193 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:30:36,195 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:30:36,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:30:36,461 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 9 proven. 48 refuted. 0 times theorem prover too weak. 703 trivial. 0 not checked. [2024-11-27 20:30:36,461 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:30:36,461 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1227406714] [2024-11-27 20:30:36,461 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1227406714] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:30:36,462 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2015791813] [2024-11-27 20:30:36,464 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:30:36,464 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:30:36,465 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bb8bd10-436e-4d18-9aa1-86a0ea2f26c6/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:30:36,471 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bb8bd10-436e-4d18-9aa1-86a0ea2f26c6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:30:36,472 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bb8bd10-436e-4d18-9aa1-86a0ea2f26c6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-27 20:30:36,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:30:36,586 INFO L256 TraceCheckSpWp]: Trace formula consists of 312 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-27 20:30:36,590 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:30:36,891 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 217 proven. 48 refuted. 0 times theorem prover too weak. 495 trivial. 0 not checked. [2024-11-27 20:30:36,892 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:30:37,165 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 9 proven. 48 refuted. 0 times theorem prover too weak. 703 trivial. 0 not checked. [2024-11-27 20:30:37,165 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2015791813] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 20:30:37,165 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-27 20:30:37,165 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 7 [2024-11-27 20:30:37,165 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [358379494] [2024-11-27 20:30:37,165 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-27 20:30:37,166 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-27 20:30:37,167 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:30:37,168 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-27 20:30:37,168 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-27 20:30:37,168 INFO L87 Difference]: Start difference. First operand 307 states and 452 transitions. Second operand has 7 states, 7 states have (on average 6.142857142857143) internal successors, (43), 7 states have internal predecessors, (43), 2 states have call successors, (36), 2 states have call predecessors, (36), 4 states have return successors, (37), 2 states have call predecessors, (37), 2 states have call successors, (37) [2024-11-27 20:30:37,396 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:30:37,397 INFO L93 Difference]: Finished difference Result 459 states and 655 transitions. [2024-11-27 20:30:37,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-27 20:30:37,398 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.142857142857143) internal successors, (43), 7 states have internal predecessors, (43), 2 states have call successors, (36), 2 states have call predecessors, (36), 4 states have return successors, (37), 2 states have call predecessors, (37), 2 states have call successors, (37) Word has length 131 [2024-11-27 20:30:37,399 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:30:37,400 INFO L225 Difference]: With dead ends: 459 [2024-11-27 20:30:37,400 INFO L226 Difference]: Without dead ends: 155 [2024-11-27 20:30:37,401 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 269 GetRequests, 259 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=65, Unknown=0, NotChecked=0, Total=110 [2024-11-27 20:30:37,402 INFO L435 NwaCegarLoop]: 57 mSDtfsCounter, 33 mSDsluCounter, 73 mSDsCounter, 0 mSdLazyCounter, 118 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 130 SdHoareTripleChecker+Invalid, 124 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 118 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-27 20:30:37,403 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 130 Invalid, 124 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 118 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-27 20:30:37,404 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 155 states. [2024-11-27 20:30:37,422 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 155 to 143. [2024-11-27 20:30:37,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 143 states, 96 states have (on average 1.1666666666666667) internal successors, (112), 96 states have internal predecessors, (112), 40 states have call successors, (40), 6 states have call predecessors, (40), 6 states have return successors, (40), 40 states have call predecessors, (40), 40 states have call successors, (40) [2024-11-27 20:30:37,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 143 states and 192 transitions. [2024-11-27 20:30:37,425 INFO L78 Accepts]: Start accepts. Automaton has 143 states and 192 transitions. Word has length 131 [2024-11-27 20:30:37,426 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:30:37,426 INFO L471 AbstractCegarLoop]: Abstraction has 143 states and 192 transitions. [2024-11-27 20:30:37,426 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.142857142857143) internal successors, (43), 7 states have internal predecessors, (43), 2 states have call successors, (36), 2 states have call predecessors, (36), 4 states have return successors, (37), 2 states have call predecessors, (37), 2 states have call successors, (37) [2024-11-27 20:30:37,426 INFO L276 IsEmpty]: Start isEmpty. Operand 143 states and 192 transitions. [2024-11-27 20:30:37,428 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2024-11-27 20:30:37,428 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:30:37,428 INFO L218 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:30:37,438 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bb8bd10-436e-4d18-9aa1-86a0ea2f26c6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-27 20:30:37,632 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bb8bd10-436e-4d18-9aa1-86a0ea2f26c6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2024-11-27 20:30:37,633 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:30:37,633 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:30:37,633 INFO L85 PathProgramCache]: Analyzing trace with hash 695481101, now seen corresponding path program 1 times [2024-11-27 20:30:37,633 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:30:37,634 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [572955844] [2024-11-27 20:30:37,634 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:30:37,634 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:30:37,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:30:38,026 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-27 20:30:38,027 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:30:38,027 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [572955844] [2024-11-27 20:30:38,027 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [572955844] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:30:38,027 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:30:38,027 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-27 20:30:38,027 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1007756682] [2024-11-27 20:30:38,027 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:30:38,028 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-27 20:30:38,028 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:30:38,028 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-27 20:30:38,028 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-27 20:30:38,029 INFO L87 Difference]: Start difference. First operand 143 states and 192 transitions. Second operand has 5 states, 5 states have (on average 6.8) internal successors, (34), 5 states have internal predecessors, (34), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-27 20:30:38,334 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:30:38,334 INFO L93 Difference]: Finished difference Result 295 states and 394 transitions. [2024-11-27 20:30:38,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-27 20:30:38,335 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.8) internal successors, (34), 5 states have internal predecessors, (34), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 131 [2024-11-27 20:30:38,336 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:30:38,337 INFO L225 Difference]: With dead ends: 295 [2024-11-27 20:30:38,337 INFO L226 Difference]: Without dead ends: 155 [2024-11-27 20:30:38,338 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-27 20:30:38,338 INFO L435 NwaCegarLoop]: 78 mSDtfsCounter, 45 mSDsluCounter, 179 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 257 SdHoareTripleChecker+Invalid, 130 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-27 20:30:38,339 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 257 Invalid, 130 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-27 20:30:38,339 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 155 states. [2024-11-27 20:30:38,363 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 155 to 130. [2024-11-27 20:30:38,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 130 states, 83 states have (on average 1.1204819277108433) internal successors, (93), 83 states have internal predecessors, (93), 40 states have call successors, (40), 6 states have call predecessors, (40), 6 states have return successors, (40), 40 states have call predecessors, (40), 40 states have call successors, (40) [2024-11-27 20:30:38,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 130 states and 173 transitions. [2024-11-27 20:30:38,365 INFO L78 Accepts]: Start accepts. Automaton has 130 states and 173 transitions. Word has length 131 [2024-11-27 20:30:38,366 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:30:38,368 INFO L471 AbstractCegarLoop]: Abstraction has 130 states and 173 transitions. [2024-11-27 20:30:38,368 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.8) internal successors, (34), 5 states have internal predecessors, (34), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-27 20:30:38,369 INFO L276 IsEmpty]: Start isEmpty. Operand 130 states and 173 transitions. [2024-11-27 20:30:38,370 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2024-11-27 20:30:38,370 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:30:38,370 INFO L218 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:30:38,370 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-27 20:30:38,370 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:30:38,371 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:30:38,371 INFO L85 PathProgramCache]: Analyzing trace with hash 1282287115, now seen corresponding path program 1 times [2024-11-27 20:30:38,371 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:30:38,371 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [823026044] [2024-11-27 20:30:38,371 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:30:38,371 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:30:38,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:30:38,756 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 3 proven. 54 refuted. 0 times theorem prover too weak. 703 trivial. 0 not checked. [2024-11-27 20:30:38,756 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:30:38,757 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [823026044] [2024-11-27 20:30:38,757 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [823026044] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:30:38,757 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1999871455] [2024-11-27 20:30:38,757 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:30:38,757 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:30:38,757 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bb8bd10-436e-4d18-9aa1-86a0ea2f26c6/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:30:38,759 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bb8bd10-436e-4d18-9aa1-86a0ea2f26c6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:30:38,762 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bb8bd10-436e-4d18-9aa1-86a0ea2f26c6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-27 20:30:38,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:30:38,976 INFO L256 TraceCheckSpWp]: Trace formula consists of 312 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-27 20:30:38,982 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:30:39,316 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 93 proven. 54 refuted. 0 times theorem prover too weak. 613 trivial. 0 not checked. [2024-11-27 20:30:39,316 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:30:39,600 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 3 proven. 54 refuted. 0 times theorem prover too weak. 703 trivial. 0 not checked. [2024-11-27 20:30:39,600 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1999871455] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 20:30:39,600 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-27 20:30:39,600 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 11 [2024-11-27 20:30:39,600 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [806688591] [2024-11-27 20:30:39,601 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-27 20:30:39,601 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-27 20:30:39,601 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:30:39,602 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-27 20:30:39,602 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2024-11-27 20:30:39,602 INFO L87 Difference]: Start difference. First operand 130 states and 173 transitions. Second operand has 11 states, 11 states have (on average 4.454545454545454) internal successors, (49), 11 states have internal predecessors, (49), 2 states have call successors, (38), 2 states have call predecessors, (38), 4 states have return successors, (39), 2 states have call predecessors, (39), 2 states have call successors, (39) [2024-11-27 20:30:40,320 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:30:40,320 INFO L93 Difference]: Finished difference Result 290 states and 382 transitions. [2024-11-27 20:30:40,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-27 20:30:40,321 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 4.454545454545454) internal successors, (49), 11 states have internal predecessors, (49), 2 states have call successors, (38), 2 states have call predecessors, (38), 4 states have return successors, (39), 2 states have call predecessors, (39), 2 states have call successors, (39) Word has length 131 [2024-11-27 20:30:40,322 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:30:40,323 INFO L225 Difference]: With dead ends: 290 [2024-11-27 20:30:40,323 INFO L226 Difference]: Without dead ends: 211 [2024-11-27 20:30:40,324 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 278 GetRequests, 255 SyntacticMatches, 3 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=129, Invalid=333, Unknown=0, NotChecked=0, Total=462 [2024-11-27 20:30:40,325 INFO L435 NwaCegarLoop]: 96 mSDtfsCounter, 105 mSDsluCounter, 342 mSDsCounter, 0 mSdLazyCounter, 499 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 124 SdHoareTripleChecker+Valid, 438 SdHoareTripleChecker+Invalid, 507 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 499 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-27 20:30:40,325 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [124 Valid, 438 Invalid, 507 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 499 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-27 20:30:40,326 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 211 states. [2024-11-27 20:30:40,358 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 211 to 185. [2024-11-27 20:30:40,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 185 states, 115 states have (on average 1.1217391304347826) internal successors, (129), 115 states have internal predecessors, (129), 60 states have call successors, (60), 9 states have call predecessors, (60), 9 states have return successors, (60), 60 states have call predecessors, (60), 60 states have call successors, (60) [2024-11-27 20:30:40,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 185 states to 185 states and 249 transitions. [2024-11-27 20:30:40,361 INFO L78 Accepts]: Start accepts. Automaton has 185 states and 249 transitions. Word has length 131 [2024-11-27 20:30:40,361 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:30:40,361 INFO L471 AbstractCegarLoop]: Abstraction has 185 states and 249 transitions. [2024-11-27 20:30:40,361 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 4.454545454545454) internal successors, (49), 11 states have internal predecessors, (49), 2 states have call successors, (38), 2 states have call predecessors, (38), 4 states have return successors, (39), 2 states have call predecessors, (39), 2 states have call successors, (39) [2024-11-27 20:30:40,362 INFO L276 IsEmpty]: Start isEmpty. Operand 185 states and 249 transitions. [2024-11-27 20:30:40,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2024-11-27 20:30:40,363 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:30:40,363 INFO L218 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:30:40,372 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bb8bd10-436e-4d18-9aa1-86a0ea2f26c6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-27 20:30:40,567 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bb8bd10-436e-4d18-9aa1-86a0ea2f26c6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2024-11-27 20:30:40,567 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:30:40,568 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:30:40,568 INFO L85 PathProgramCache]: Analyzing trace with hash 1284134157, now seen corresponding path program 1 times [2024-11-27 20:30:40,568 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:30:40,568 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1868547514] [2024-11-27 20:30:40,568 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:30:40,568 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:30:40,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:30:40,751 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-27 20:30:40,751 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:30:40,751 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1868547514] [2024-11-27 20:30:40,751 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1868547514] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:30:40,751 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:30:40,752 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 20:30:40,752 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [652761865] [2024-11-27 20:30:40,752 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:30:40,752 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 20:30:40,752 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:30:40,753 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 20:30:40,753 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 20:30:40,753 INFO L87 Difference]: Start difference. First operand 185 states and 249 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, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-27 20:30:40,818 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:30:40,818 INFO L93 Difference]: Finished difference Result 387 states and 522 transitions. [2024-11-27 20:30:40,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 20:30:40,819 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, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 131 [2024-11-27 20:30:40,820 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:30:40,822 INFO L225 Difference]: With dead ends: 387 [2024-11-27 20:30:40,822 INFO L226 Difference]: Without dead ends: 249 [2024-11-27 20:30:40,822 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 [2024-11-27 20:30:40,823 INFO L435 NwaCegarLoop]: 94 mSDtfsCounter, 74 mSDsluCounter, 72 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 166 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 [2024-11-27 20:30:40,823 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [74 Valid, 166 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-27 20:30:40,824 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 249 states. [2024-11-27 20:30:40,867 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 249 to 247. [2024-11-27 20:30:40,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 247 states, 154 states have (on average 1.12987012987013) internal successors, (174), 154 states have internal predecessors, (174), 80 states have call successors, (80), 12 states have call predecessors, (80), 12 states have return successors, (80), 80 states have call predecessors, (80), 80 states have call successors, (80) [2024-11-27 20:30:40,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 247 states to 247 states and 334 transitions. [2024-11-27 20:30:40,872 INFO L78 Accepts]: Start accepts. Automaton has 247 states and 334 transitions. Word has length 131 [2024-11-27 20:30:40,873 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:30:40,873 INFO L471 AbstractCegarLoop]: Abstraction has 247 states and 334 transitions. [2024-11-27 20:30:40,873 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, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-27 20:30:40,873 INFO L276 IsEmpty]: Start isEmpty. Operand 247 states and 334 transitions. [2024-11-27 20:30:40,875 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2024-11-27 20:30:40,875 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:30:40,875 INFO L218 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:30:40,875 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-27 20:30:40,876 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:30:40,876 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:30:40,876 INFO L85 PathProgramCache]: Analyzing trace with hash 1191285994, now seen corresponding path program 1 times [2024-11-27 20:30:40,876 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:30:40,876 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [784541773] [2024-11-27 20:30:40,876 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:30:40,877 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:30:40,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:30:41,037 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-27 20:30:41,037 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:30:41,037 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [784541773] [2024-11-27 20:30:41,038 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [784541773] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:30:41,038 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:30:41,038 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-27 20:30:41,038 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2070470437] [2024-11-27 20:30:41,038 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:30:41,038 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-27 20:30:41,038 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:30:41,039 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-27 20:30:41,039 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-27 20:30:41,039 INFO L87 Difference]: Start difference. First operand 247 states and 334 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, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-27 20:30:41,266 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:30:41,266 INFO L93 Difference]: Finished difference Result 563 states and 762 transitions. [2024-11-27 20:30:41,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 20:30:41,267 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, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 131 [2024-11-27 20:30:41,267 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:30:41,271 INFO L225 Difference]: With dead ends: 563 [2024-11-27 20:30:41,274 INFO L226 Difference]: Without dead ends: 367 [2024-11-27 20:30:41,276 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 [2024-11-27 20:30:41,276 INFO L435 NwaCegarLoop]: 138 mSDtfsCounter, 84 mSDsluCounter, 159 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 84 SdHoareTripleChecker+Valid, 297 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-27 20:30:41,276 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [84 Valid, 297 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-27 20:30:41,277 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 367 states. [2024-11-27 20:30:41,368 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 367 to 363. [2024-11-27 20:30:41,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 363 states, 224 states have (on average 1.1160714285714286) internal successors, (250), 224 states have internal predecessors, (250), 120 states have call successors, (120), 18 states have call predecessors, (120), 18 states have return successors, (120), 120 states have call predecessors, (120), 120 states have call successors, (120) [2024-11-27 20:30:41,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 363 states to 363 states and 490 transitions. [2024-11-27 20:30:41,373 INFO L78 Accepts]: Start accepts. Automaton has 363 states and 490 transitions. Word has length 131 [2024-11-27 20:30:41,373 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:30:41,373 INFO L471 AbstractCegarLoop]: Abstraction has 363 states and 490 transitions. [2024-11-27 20:30:41,373 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, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-27 20:30:41,374 INFO L276 IsEmpty]: Start isEmpty. Operand 363 states and 490 transitions. [2024-11-27 20:30:41,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2024-11-27 20:30:41,375 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:30:41,375 INFO L218 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:30:41,375 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-27 20:30:41,376 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:30:41,376 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:30:41,376 INFO L85 PathProgramCache]: Analyzing trace with hash 1871344364, now seen corresponding path program 1 times [2024-11-27 20:30:41,376 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:30:41,376 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1807914276] [2024-11-27 20:30:41,376 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:30:41,377 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:30:41,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:30:42,147 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 24 proven. 33 refuted. 0 times theorem prover too weak. 703 trivial. 0 not checked. [2024-11-27 20:30:42,149 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:30:42,150 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1807914276] [2024-11-27 20:30:42,150 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1807914276] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:30:42,150 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [274688407] [2024-11-27 20:30:42,150 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:30:42,150 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:30:42,150 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bb8bd10-436e-4d18-9aa1-86a0ea2f26c6/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:30:42,154 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bb8bd10-436e-4d18-9aa1-86a0ea2f26c6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:30:42,159 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bb8bd10-436e-4d18-9aa1-86a0ea2f26c6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-27 20:30:42,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:30:42,849 INFO L256 TraceCheckSpWp]: Trace formula consists of 315 conjuncts, 25 conjuncts are in the unsatisfiable core [2024-11-27 20:30:42,853 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:30:43,993 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 400 proven. 60 refuted. 0 times theorem prover too weak. 300 trivial. 0 not checked. [2024-11-27 20:30:43,993 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:30:45,028 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 48 proven. 63 refuted. 0 times theorem prover too weak. 649 trivial. 0 not checked. [2024-11-27 20:30:45,028 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [274688407] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 20:30:45,028 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-27 20:30:45,028 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 10, 11] total 26 [2024-11-27 20:30:45,028 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [555494880] [2024-11-27 20:30:45,028 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-27 20:30:45,030 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2024-11-27 20:30:45,030 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:30:45,031 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2024-11-27 20:30:45,032 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=148, Invalid=502, Unknown=0, NotChecked=0, Total=650 [2024-11-27 20:30:45,032 INFO L87 Difference]: Start difference. First operand 363 states and 490 transitions. Second operand has 26 states, 25 states have (on average 3.8) internal successors, (95), 24 states have internal predecessors, (95), 8 states have call successors, (60), 4 states have call predecessors, (60), 8 states have return successors, (60), 8 states have call predecessors, (60), 8 states have call successors, (60) [2024-11-27 20:30:46,957 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:30:46,957 INFO L93 Difference]: Finished difference Result 494 states and 646 transitions. [2024-11-27 20:30:46,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2024-11-27 20:30:46,958 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 25 states have (on average 3.8) internal successors, (95), 24 states have internal predecessors, (95), 8 states have call successors, (60), 4 states have call predecessors, (60), 8 states have return successors, (60), 8 states have call predecessors, (60), 8 states have call successors, (60) Word has length 131 [2024-11-27 20:30:46,959 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:30:46,960 INFO L225 Difference]: With dead ends: 494 [2024-11-27 20:30:46,961 INFO L226 Difference]: Without dead ends: 182 [2024-11-27 20:30:46,962 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 301 GetRequests, 252 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 540 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=715, Invalid=1835, Unknown=0, NotChecked=0, Total=2550 [2024-11-27 20:30:46,963 INFO L435 NwaCegarLoop]: 84 mSDtfsCounter, 571 mSDsluCounter, 216 mSDsCounter, 0 mSdLazyCounter, 537 mSolverCounterSat, 494 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 571 SdHoareTripleChecker+Valid, 300 SdHoareTripleChecker+Invalid, 1031 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 494 IncrementalHoareTripleChecker+Valid, 537 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-27 20:30:46,963 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [571 Valid, 300 Invalid, 1031 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [494 Valid, 537 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-27 20:30:46,964 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 182 states. [2024-11-27 20:30:47,001 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 182 to 130. [2024-11-27 20:30:47,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 130 states, 79 states have (on average 1.0379746835443038) internal successors, (82), 79 states have internal predecessors, (82), 40 states have call successors, (40), 10 states have call predecessors, (40), 10 states have return successors, (40), 40 states have call predecessors, (40), 40 states have call successors, (40) [2024-11-27 20:30:47,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 130 states and 162 transitions. [2024-11-27 20:30:47,004 INFO L78 Accepts]: Start accepts. Automaton has 130 states and 162 transitions. Word has length 131 [2024-11-27 20:30:47,004 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:30:47,004 INFO L471 AbstractCegarLoop]: Abstraction has 130 states and 162 transitions. [2024-11-27 20:30:47,004 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 25 states have (on average 3.8) internal successors, (95), 24 states have internal predecessors, (95), 8 states have call successors, (60), 4 states have call predecessors, (60), 8 states have return successors, (60), 8 states have call predecessors, (60), 8 states have call successors, (60) [2024-11-27 20:30:47,004 INFO L276 IsEmpty]: Start isEmpty. Operand 130 states and 162 transitions. [2024-11-27 20:30:47,005 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2024-11-27 20:30:47,006 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:30:47,006 INFO L218 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:30:47,016 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bb8bd10-436e-4d18-9aa1-86a0ea2f26c6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-27 20:30:47,206 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bb8bd10-436e-4d18-9aa1-86a0ea2f26c6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2024-11-27 20:30:47,207 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:30:47,207 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:30:47,208 INFO L85 PathProgramCache]: Analyzing trace with hash -1995455282, now seen corresponding path program 1 times [2024-11-27 20:30:47,208 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:30:47,208 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1537517347] [2024-11-27 20:30:47,208 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:30:47,208 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:30:47,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-27 20:30:47,291 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [105830859] [2024-11-27 20:30:47,291 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:30:47,292 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:30:47,292 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bb8bd10-436e-4d18-9aa1-86a0ea2f26c6/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:30:47,294 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bb8bd10-436e-4d18-9aa1-86a0ea2f26c6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:30:47,297 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bb8bd10-436e-4d18-9aa1-86a0ea2f26c6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-27 20:30:47,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 20:30:47,780 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-27 20:30:47,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 20:30:47,909 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-27 20:30:47,910 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-11-27 20:30:47,911 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-27 20:30:47,925 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bb8bd10-436e-4d18-9aa1-86a0ea2f26c6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-27 20:30:48,113 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bb8bd10-436e-4d18-9aa1-86a0ea2f26c6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2024-11-27 20:30:48,115 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:30:48,198 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-27 20:30:48,201 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.11 08:30:48 BoogieIcfgContainer [2024-11-27 20:30:48,201 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-27 20:30:48,202 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-27 20:30:48,202 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-27 20:30:48,202 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-27 20:30:48,203 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 08:30:23" (3/4) ... [2024-11-27 20:30:48,205 INFO L149 WitnessPrinter]: No result that supports witness generation found [2024-11-27 20:30:48,206 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-27 20:30:48,207 INFO L158 Benchmark]: Toolchain (without parser) took 26217.57ms. Allocated memory was 117.4MB in the beginning and 343.9MB in the end (delta: 226.5MB). Free memory was 92.6MB in the beginning and 287.7MB in the end (delta: -195.1MB). Peak memory consumption was 27.9MB. Max. memory is 16.1GB. [2024-11-27 20:30:48,207 INFO L158 Benchmark]: CDTParser took 0.27ms. Allocated memory is still 117.4MB. Free memory is still 72.7MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-27 20:30:48,207 INFO L158 Benchmark]: CACSL2BoogieTranslator took 363.85ms. Allocated memory is still 117.4MB. Free memory was 92.3MB in the beginning and 78.5MB in the end (delta: 13.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-27 20:30:48,208 INFO L158 Benchmark]: Boogie Procedure Inliner took 64.62ms. Allocated memory is still 117.4MB. Free memory was 78.5MB in the beginning and 75.9MB in the end (delta: 2.6MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-27 20:30:48,208 INFO L158 Benchmark]: Boogie Preprocessor took 58.69ms. Allocated memory is still 117.4MB. Free memory was 75.9MB in the beginning and 72.2MB in the end (delta: 3.7MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-27 20:30:48,208 INFO L158 Benchmark]: RCFGBuilder took 636.18ms. Allocated memory is still 117.4MB. Free memory was 72.2MB in the beginning and 52.5MB in the end (delta: 19.6MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-11-27 20:30:48,209 INFO L158 Benchmark]: TraceAbstraction took 25082.36ms. Allocated memory was 117.4MB in the beginning and 343.9MB in the end (delta: 226.5MB). Free memory was 51.7MB in the beginning and 287.8MB in the end (delta: -236.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-27 20:30:48,209 INFO L158 Benchmark]: Witness Printer took 4.47ms. Allocated memory is still 343.9MB. Free memory was 287.8MB in the beginning and 287.7MB in the end (delta: 69.3kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-27 20:30:48,210 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27ms. Allocated memory is still 117.4MB. Free memory is still 72.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 363.85ms. Allocated memory is still 117.4MB. Free memory was 92.3MB in the beginning and 78.5MB in the end (delta: 13.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 64.62ms. Allocated memory is still 117.4MB. Free memory was 78.5MB in the beginning and 75.9MB in the end (delta: 2.6MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 58.69ms. Allocated memory is still 117.4MB. Free memory was 75.9MB in the beginning and 72.2MB in the end (delta: 3.7MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 636.18ms. Allocated memory is still 117.4MB. Free memory was 72.2MB in the beginning and 52.5MB in the end (delta: 19.6MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * TraceAbstraction took 25082.36ms. Allocated memory was 117.4MB in the beginning and 343.9MB in the end (delta: 226.5MB). Free memory was 51.7MB in the beginning and 287.8MB in the end (delta: -236.1MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 4.47ms. Allocated memory is still 343.9MB. Free memory was 287.8MB in the beginning and 287.7MB in the end (delta: 69.3kB). 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 someBinaryArithmeticDOUBLEoperation at line 85, overapproximation of someBinaryDOUBLEComparisonOperation at line 102, overapproximation of someBinaryDOUBLEComparisonOperation at line 76, overapproximation of someBinaryDOUBLEComparisonOperation at line 104, overapproximation of someBinaryDOUBLEComparisonOperation at line 131. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] unsigned char var_1_1 = 0; [L23] unsigned char var_1_4 = 0; [L24] unsigned char var_1_5 = 0; [L25] unsigned short int var_1_6 = 4; [L26] unsigned short int var_1_9 = 4; [L27] unsigned short int var_1_10 = 10; [L28] double var_1_11 = 15.6; [L29] double var_1_12 = 256.4; [L30] double var_1_13 = 49.15; [L31] unsigned long int var_1_14 = 500; [L32] unsigned long int var_1_15 = 2173307753; [L33] unsigned long int var_1_16 = 3362224480; [L34] signed short int var_1_17 = 16; [L35] signed short int var_1_19 = 16; [L36] signed short int var_1_20 = 4; [L37] signed short int var_1_21 = 0; [L38] signed short int var_1_22 = -25; [L39] unsigned short int last_1_var_1_6 = 4; [L40] unsigned short int last_1_var_1_9 = 4; [L41] unsigned long int last_1_var_1_14 = 500; [L42] signed short int last_1_var_1_17 = 16; VAL [isInitial=0, last_1_var_1_14=500, last_1_var_1_17=16, last_1_var_1_6=4, last_1_var_1_9=4, var_1_10=10, var_1_11=78/5, var_1_12=1282/5, var_1_13=983/20, var_1_14=500, var_1_15=2173307753, var_1_16=3362224480, var_1_17=16, var_1_19=16, var_1_1=0, var_1_20=4, var_1_21=0, var_1_22=-25, var_1_4=0, var_1_5=0, var_1_6=4, var_1_9=4] [L135] isInitial = 1 [L136] FCALL initially() [L138] CALL updateLastVariables() [L125] last_1_var_1_6 = var_1_6 [L126] last_1_var_1_9 = var_1_9 [L127] last_1_var_1_14 = var_1_14 [L128] last_1_var_1_17 = var_1_17 VAL [isInitial=1, last_1_var_1_14=500, last_1_var_1_17=16, last_1_var_1_6=4, last_1_var_1_9=4, var_1_10=10, var_1_11=78/5, var_1_12=1282/5, var_1_13=983/20, var_1_14=500, var_1_15=2173307753, var_1_16=3362224480, var_1_17=16, var_1_19=16, var_1_1=0, var_1_20=4, var_1_21=0, var_1_22=-25, var_1_4=0, var_1_5=0, var_1_6=4, var_1_9=4] [L138] RET updateLastVariables() [L139] CALL updateVariables() [L92] var_1_4 = __VERIFIER_nondet_uchar() [L93] CALL assume_abort_if_not(var_1_4 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_14=500, last_1_var_1_17=16, last_1_var_1_6=4, last_1_var_1_9=4, var_1_10=10, var_1_11=78/5, var_1_12=1282/5, var_1_13=983/20, var_1_14=500, var_1_15=2173307753, var_1_16=3362224480, var_1_17=16, var_1_19=16, var_1_1=0, var_1_20=4, var_1_21=0, var_1_22=-25, var_1_5=0, var_1_6=4, var_1_9=4] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_14=500, last_1_var_1_17=16, last_1_var_1_6=4, last_1_var_1_9=4, var_1_10=10, var_1_11=78/5, var_1_12=1282/5, var_1_13=983/20, var_1_14=500, var_1_15=2173307753, var_1_16=3362224480, var_1_17=16, var_1_19=16, var_1_1=0, var_1_20=4, var_1_21=0, var_1_22=-25, var_1_5=0, var_1_6=4, var_1_9=4] [L93] RET assume_abort_if_not(var_1_4 >= 0) VAL [isInitial=1, last_1_var_1_14=500, last_1_var_1_17=16, last_1_var_1_6=4, last_1_var_1_9=4, var_1_10=10, var_1_11=78/5, var_1_12=1282/5, var_1_13=983/20, var_1_14=500, var_1_15=2173307753, var_1_16=3362224480, var_1_17=16, var_1_19=16, var_1_1=0, var_1_20=4, var_1_21=0, var_1_22=-25, var_1_5=0, var_1_6=4, var_1_9=4] [L94] CALL assume_abort_if_not(var_1_4 <= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_14=500, last_1_var_1_17=16, last_1_var_1_6=4, last_1_var_1_9=4, var_1_10=10, var_1_11=78/5, var_1_12=1282/5, var_1_13=983/20, var_1_14=500, var_1_15=2173307753, var_1_16=3362224480, var_1_17=16, var_1_19=16, var_1_1=0, var_1_20=4, var_1_21=0, var_1_22=-25, var_1_4=0, var_1_5=0, var_1_6=4, var_1_9=4] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_14=500, last_1_var_1_17=16, last_1_var_1_6=4, last_1_var_1_9=4, var_1_10=10, var_1_11=78/5, var_1_12=1282/5, var_1_13=983/20, var_1_14=500, var_1_15=2173307753, var_1_16=3362224480, var_1_17=16, var_1_19=16, var_1_1=0, var_1_20=4, var_1_21=0, var_1_22=-25, var_1_4=0, var_1_5=0, var_1_6=4, var_1_9=4] [L94] RET assume_abort_if_not(var_1_4 <= 0) VAL [isInitial=1, last_1_var_1_14=500, last_1_var_1_17=16, last_1_var_1_6=4, last_1_var_1_9=4, var_1_10=10, var_1_11=78/5, var_1_12=1282/5, var_1_13=983/20, var_1_14=500, var_1_15=2173307753, var_1_16=3362224480, var_1_17=16, var_1_19=16, var_1_1=0, var_1_20=4, var_1_21=0, var_1_22=-25, var_1_4=0, var_1_5=0, var_1_6=4, var_1_9=4] [L95] var_1_5 = __VERIFIER_nondet_uchar() [L96] CALL assume_abort_if_not(var_1_5 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_14=500, last_1_var_1_17=16, last_1_var_1_6=4, last_1_var_1_9=4, var_1_10=10, var_1_11=78/5, var_1_12=1282/5, var_1_13=983/20, var_1_14=500, var_1_15=2173307753, var_1_16=3362224480, var_1_17=16, var_1_19=16, var_1_1=0, var_1_20=4, var_1_21=0, var_1_22=-25, var_1_4=0, var_1_6=4, var_1_9=4] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_14=500, last_1_var_1_17=16, last_1_var_1_6=4, last_1_var_1_9=4, var_1_10=10, var_1_11=78/5, var_1_12=1282/5, var_1_13=983/20, var_1_14=500, var_1_15=2173307753, var_1_16=3362224480, var_1_17=16, var_1_19=16, var_1_1=0, var_1_20=4, var_1_21=0, var_1_22=-25, var_1_4=0, var_1_6=4, var_1_9=4] [L96] RET assume_abort_if_not(var_1_5 >= 0) VAL [isInitial=1, last_1_var_1_14=500, last_1_var_1_17=16, last_1_var_1_6=4, last_1_var_1_9=4, var_1_10=10, var_1_11=78/5, var_1_12=1282/5, var_1_13=983/20, var_1_14=500, var_1_15=2173307753, var_1_16=3362224480, var_1_17=16, var_1_19=16, var_1_1=0, var_1_20=4, var_1_21=0, var_1_22=-25, var_1_4=0, var_1_6=4, var_1_9=4] [L97] CALL assume_abort_if_not(var_1_5 <= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_14=500, last_1_var_1_17=16, last_1_var_1_6=4, last_1_var_1_9=4, var_1_10=10, var_1_11=78/5, var_1_12=1282/5, var_1_13=983/20, var_1_14=500, var_1_15=2173307753, var_1_16=3362224480, var_1_17=16, var_1_19=16, var_1_1=0, var_1_20=4, var_1_21=0, var_1_22=-25, var_1_4=0, var_1_5=0, var_1_6=4, var_1_9=4] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_14=500, last_1_var_1_17=16, last_1_var_1_6=4, last_1_var_1_9=4, var_1_10=10, var_1_11=78/5, var_1_12=1282/5, var_1_13=983/20, var_1_14=500, var_1_15=2173307753, var_1_16=3362224480, var_1_17=16, var_1_19=16, var_1_1=0, var_1_20=4, var_1_21=0, var_1_22=-25, var_1_4=0, var_1_5=0, var_1_6=4, var_1_9=4] [L97] RET assume_abort_if_not(var_1_5 <= 0) VAL [isInitial=1, last_1_var_1_14=500, last_1_var_1_17=16, last_1_var_1_6=4, last_1_var_1_9=4, var_1_10=10, var_1_11=78/5, var_1_12=1282/5, var_1_13=983/20, var_1_14=500, var_1_15=2173307753, var_1_16=3362224480, var_1_17=16, var_1_19=16, var_1_1=0, var_1_20=4, var_1_21=0, var_1_22=-25, var_1_4=0, var_1_5=0, var_1_6=4, var_1_9=4] [L98] var_1_10 = __VERIFIER_nondet_ushort() [L99] CALL assume_abort_if_not(var_1_10 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_14=500, last_1_var_1_17=16, last_1_var_1_6=4, last_1_var_1_9=4, var_1_11=78/5, var_1_12=1282/5, var_1_13=983/20, var_1_14=500, var_1_15=2173307753, var_1_16=3362224480, var_1_17=16, var_1_19=16, var_1_1=0, var_1_20=4, var_1_21=0, var_1_22=-25, var_1_4=0, var_1_5=0, var_1_6=4, var_1_9=4] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_14=500, last_1_var_1_17=16, last_1_var_1_6=4, last_1_var_1_9=4, var_1_11=78/5, var_1_12=1282/5, var_1_13=983/20, var_1_14=500, var_1_15=2173307753, var_1_16=3362224480, var_1_17=16, var_1_19=16, var_1_1=0, var_1_20=4, var_1_21=0, var_1_22=-25, var_1_4=0, var_1_5=0, var_1_6=4, var_1_9=4] [L99] RET assume_abort_if_not(var_1_10 >= 0) VAL [isInitial=1, last_1_var_1_14=500, last_1_var_1_17=16, last_1_var_1_6=4, last_1_var_1_9=4, var_1_11=78/5, var_1_12=1282/5, var_1_13=983/20, var_1_14=500, var_1_15=2173307753, var_1_16=3362224480, var_1_17=16, var_1_19=16, var_1_1=0, var_1_20=4, var_1_21=0, var_1_22=-25, var_1_4=0, var_1_5=0, var_1_6=4, var_1_9=4] [L100] CALL assume_abort_if_not(var_1_10 <= 65534) VAL [\old(cond)=1, isInitial=1, last_1_var_1_14=500, last_1_var_1_17=16, last_1_var_1_6=4, last_1_var_1_9=4, var_1_10=0, var_1_11=78/5, var_1_12=1282/5, var_1_13=983/20, var_1_14=500, var_1_15=2173307753, var_1_16=3362224480, var_1_17=16, var_1_19=16, var_1_1=0, var_1_20=4, var_1_21=0, var_1_22=-25, var_1_4=0, var_1_5=0, var_1_6=4, var_1_9=4] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_14=500, last_1_var_1_17=16, last_1_var_1_6=4, last_1_var_1_9=4, var_1_10=0, var_1_11=78/5, var_1_12=1282/5, var_1_13=983/20, var_1_14=500, var_1_15=2173307753, var_1_16=3362224480, var_1_17=16, var_1_19=16, var_1_1=0, var_1_20=4, var_1_21=0, var_1_22=-25, var_1_4=0, var_1_5=0, var_1_6=4, var_1_9=4] [L100] RET assume_abort_if_not(var_1_10 <= 65534) VAL [isInitial=1, last_1_var_1_14=500, last_1_var_1_17=16, last_1_var_1_6=4, last_1_var_1_9=4, var_1_10=0, var_1_11=78/5, var_1_12=1282/5, var_1_13=983/20, var_1_14=500, var_1_15=2173307753, var_1_16=3362224480, var_1_17=16, var_1_19=16, var_1_1=0, var_1_20=4, var_1_21=0, var_1_22=-25, var_1_4=0, var_1_5=0, var_1_6=4, var_1_9=4] [L101] var_1_12 = __VERIFIER_nondet_double() [L102] CALL assume_abort_if_not((var_1_12 >= 0.0F && var_1_12 <= -1.0e-20F) || (var_1_12 <= 9223372.036854765600e+12F && var_1_12 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_14=500, last_1_var_1_17=16, last_1_var_1_6=4, last_1_var_1_9=4, var_1_10=0, var_1_11=78/5, var_1_13=983/20, var_1_14=500, var_1_15=2173307753, var_1_16=3362224480, var_1_17=16, var_1_19=16, var_1_1=0, var_1_20=4, var_1_21=0, var_1_22=-25, var_1_4=0, var_1_5=0, var_1_6=4, var_1_9=4] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_14=500, last_1_var_1_17=16, last_1_var_1_6=4, last_1_var_1_9=4, var_1_10=0, var_1_11=78/5, var_1_13=983/20, var_1_14=500, var_1_15=2173307753, var_1_16=3362224480, var_1_17=16, var_1_19=16, var_1_1=0, var_1_20=4, var_1_21=0, var_1_22=-25, var_1_4=0, var_1_5=0, var_1_6=4, var_1_9=4] [L102] RET assume_abort_if_not((var_1_12 >= 0.0F && var_1_12 <= -1.0e-20F) || (var_1_12 <= 9223372.036854765600e+12F && var_1_12 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_14=500, last_1_var_1_17=16, last_1_var_1_6=4, last_1_var_1_9=4, var_1_10=0, var_1_11=78/5, var_1_13=983/20, var_1_14=500, var_1_15=2173307753, var_1_16=3362224480, var_1_17=16, var_1_19=16, var_1_1=0, var_1_20=4, var_1_21=0, var_1_22=-25, var_1_4=0, var_1_5=0, var_1_6=4, var_1_9=4] [L103] var_1_13 = __VERIFIER_nondet_double() [L104] CALL assume_abort_if_not((var_1_13 >= 0.0F && var_1_13 <= -1.0e-20F) || (var_1_13 <= 9223372.036854765600e+12F && var_1_13 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_14=500, last_1_var_1_17=16, last_1_var_1_6=4, last_1_var_1_9=4, var_1_10=0, var_1_11=78/5, var_1_14=500, var_1_15=2173307753, var_1_16=3362224480, var_1_17=16, var_1_19=16, var_1_1=0, var_1_20=4, var_1_21=0, var_1_22=-25, var_1_4=0, var_1_5=0, var_1_6=4, var_1_9=4] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_14=500, last_1_var_1_17=16, last_1_var_1_6=4, last_1_var_1_9=4, var_1_10=0, var_1_11=78/5, var_1_14=500, var_1_15=2173307753, var_1_16=3362224480, var_1_17=16, var_1_19=16, var_1_1=0, var_1_20=4, var_1_21=0, var_1_22=-25, var_1_4=0, var_1_5=0, var_1_6=4, var_1_9=4] [L104] RET assume_abort_if_not((var_1_13 >= 0.0F && var_1_13 <= -1.0e-20F) || (var_1_13 <= 9223372.036854765600e+12F && var_1_13 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_14=500, last_1_var_1_17=16, last_1_var_1_6=4, last_1_var_1_9=4, var_1_10=0, var_1_11=78/5, var_1_14=500, var_1_15=2173307753, var_1_16=3362224480, var_1_17=16, var_1_19=16, var_1_1=0, var_1_20=4, var_1_21=0, var_1_22=-25, var_1_4=0, var_1_5=0, var_1_6=4, var_1_9=4] [L105] var_1_15 = __VERIFIER_nondet_ulong() [L106] CALL assume_abort_if_not(var_1_15 >= 2147483647) VAL [\old(cond)=1, isInitial=1, last_1_var_1_14=500, last_1_var_1_17=16, last_1_var_1_6=4, last_1_var_1_9=4, var_1_10=0, var_1_11=78/5, var_1_14=500, var_1_15=3221225470, var_1_16=3362224480, var_1_17=16, var_1_19=16, var_1_1=0, var_1_20=4, var_1_21=0, var_1_22=-25, var_1_4=0, var_1_5=0, var_1_6=4, var_1_9=4] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_14=500, last_1_var_1_17=16, last_1_var_1_6=4, last_1_var_1_9=4, var_1_10=0, var_1_11=78/5, var_1_14=500, var_1_15=3221225470, var_1_16=3362224480, var_1_17=16, var_1_19=16, var_1_1=0, var_1_20=4, var_1_21=0, var_1_22=-25, var_1_4=0, var_1_5=0, var_1_6=4, var_1_9=4] [L106] RET assume_abort_if_not(var_1_15 >= 2147483647) VAL [isInitial=1, last_1_var_1_14=500, last_1_var_1_17=16, last_1_var_1_6=4, last_1_var_1_9=4, var_1_10=0, var_1_11=78/5, var_1_14=500, var_1_15=3221225470, var_1_16=3362224480, var_1_17=16, var_1_19=16, var_1_1=0, var_1_20=4, var_1_21=0, var_1_22=-25, var_1_4=0, var_1_5=0, var_1_6=4, var_1_9=4] [L107] CALL assume_abort_if_not(var_1_15 <= 4294967294) VAL [\old(cond)=1, isInitial=1, last_1_var_1_14=500, last_1_var_1_17=16, last_1_var_1_6=4, last_1_var_1_9=4, var_1_10=0, var_1_11=78/5, var_1_14=500, var_1_15=3221225470, var_1_16=3362224480, var_1_17=16, var_1_19=16, var_1_1=0, var_1_20=4, var_1_21=0, var_1_22=-25, var_1_4=0, var_1_5=0, var_1_6=4, var_1_9=4] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_14=500, last_1_var_1_17=16, last_1_var_1_6=4, last_1_var_1_9=4, var_1_10=0, var_1_11=78/5, var_1_14=500, var_1_15=3221225470, var_1_16=3362224480, var_1_17=16, var_1_19=16, var_1_1=0, var_1_20=4, var_1_21=0, var_1_22=-25, var_1_4=0, var_1_5=0, var_1_6=4, var_1_9=4] [L107] RET assume_abort_if_not(var_1_15 <= 4294967294) VAL [isInitial=1, last_1_var_1_14=500, last_1_var_1_17=16, last_1_var_1_6=4, last_1_var_1_9=4, var_1_10=0, var_1_11=78/5, var_1_14=500, var_1_15=3221225470, var_1_16=3362224480, var_1_17=16, var_1_19=16, var_1_1=0, var_1_20=4, var_1_21=0, var_1_22=-25, var_1_4=0, var_1_5=0, var_1_6=4, var_1_9=4] [L108] var_1_16 = __VERIFIER_nondet_ulong() [L109] CALL assume_abort_if_not(var_1_16 >= 3221225470) VAL [\old(cond)=1, isInitial=1, last_1_var_1_14=500, last_1_var_1_17=16, last_1_var_1_6=4, last_1_var_1_9=4, var_1_10=0, var_1_11=78/5, var_1_14=500, var_1_15=3221225470, var_1_16=3221225470, var_1_17=16, var_1_19=16, var_1_1=0, var_1_20=4, var_1_21=0, var_1_22=-25, var_1_4=0, var_1_5=0, var_1_6=4, var_1_9=4] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_14=500, last_1_var_1_17=16, last_1_var_1_6=4, last_1_var_1_9=4, var_1_10=0, var_1_11=78/5, var_1_14=500, var_1_15=3221225470, var_1_16=3221225470, var_1_17=16, var_1_19=16, var_1_1=0, var_1_20=4, var_1_21=0, var_1_22=-25, var_1_4=0, var_1_5=0, var_1_6=4, var_1_9=4] [L109] RET assume_abort_if_not(var_1_16 >= 3221225470) VAL [isInitial=1, last_1_var_1_14=500, last_1_var_1_17=16, last_1_var_1_6=4, last_1_var_1_9=4, var_1_10=0, var_1_11=78/5, var_1_14=500, var_1_15=3221225470, var_1_16=3221225470, var_1_17=16, var_1_19=16, var_1_1=0, var_1_20=4, var_1_21=0, var_1_22=-25, var_1_4=0, var_1_5=0, var_1_6=4, var_1_9=4] [L110] CALL assume_abort_if_not(var_1_16 <= 4294967294) VAL [\old(cond)=1, isInitial=1, last_1_var_1_14=500, last_1_var_1_17=16, last_1_var_1_6=4, last_1_var_1_9=4, var_1_10=0, var_1_11=78/5, var_1_14=500, var_1_15=3221225470, var_1_16=3221225470, var_1_17=16, var_1_19=16, var_1_1=0, var_1_20=4, var_1_21=0, var_1_22=-25, var_1_4=0, var_1_5=0, var_1_6=4, var_1_9=4] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_14=500, last_1_var_1_17=16, last_1_var_1_6=4, last_1_var_1_9=4, var_1_10=0, var_1_11=78/5, var_1_14=500, var_1_15=3221225470, var_1_16=3221225470, var_1_17=16, var_1_19=16, var_1_1=0, var_1_20=4, var_1_21=0, var_1_22=-25, var_1_4=0, var_1_5=0, var_1_6=4, var_1_9=4] [L110] RET assume_abort_if_not(var_1_16 <= 4294967294) VAL [isInitial=1, last_1_var_1_14=500, last_1_var_1_17=16, last_1_var_1_6=4, last_1_var_1_9=4, var_1_10=0, var_1_11=78/5, var_1_14=500, var_1_15=3221225470, var_1_16=3221225470, var_1_17=16, var_1_19=16, var_1_1=0, var_1_20=4, var_1_21=0, var_1_22=-25, var_1_4=0, var_1_5=0, var_1_6=4, var_1_9=4] [L111] var_1_19 = __VERIFIER_nondet_short() [L112] CALL assume_abort_if_not(var_1_19 >= -16383) VAL [\old(cond)=1, isInitial=1, last_1_var_1_14=500, last_1_var_1_17=16, last_1_var_1_6=4, last_1_var_1_9=4, var_1_10=0, var_1_11=78/5, var_1_14=500, var_1_15=3221225470, var_1_16=3221225470, var_1_17=16, var_1_19=-16383, var_1_1=0, var_1_20=4, var_1_21=0, var_1_22=-25, var_1_4=0, var_1_5=0, var_1_6=4, var_1_9=4] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_14=500, last_1_var_1_17=16, last_1_var_1_6=4, last_1_var_1_9=4, var_1_10=0, var_1_11=78/5, var_1_14=500, var_1_15=3221225470, var_1_16=3221225470, var_1_17=16, var_1_19=-16383, var_1_1=0, var_1_20=4, var_1_21=0, var_1_22=-25, var_1_4=0, var_1_5=0, var_1_6=4, var_1_9=4] [L112] RET assume_abort_if_not(var_1_19 >= -16383) VAL [isInitial=1, last_1_var_1_14=500, last_1_var_1_17=16, last_1_var_1_6=4, last_1_var_1_9=4, var_1_10=0, var_1_11=78/5, var_1_14=500, var_1_15=3221225470, var_1_16=3221225470, var_1_17=16, var_1_19=-16383, var_1_1=0, var_1_20=4, var_1_21=0, var_1_22=-25, var_1_4=0, var_1_5=0, var_1_6=4, var_1_9=4] [L113] CALL assume_abort_if_not(var_1_19 <= 16383) VAL [\old(cond)=1, isInitial=1, last_1_var_1_14=500, last_1_var_1_17=16, last_1_var_1_6=4, last_1_var_1_9=4, var_1_10=0, var_1_11=78/5, var_1_14=500, var_1_15=3221225470, var_1_16=3221225470, var_1_17=16, var_1_19=-16383, var_1_1=0, var_1_20=4, var_1_21=0, var_1_22=-25, var_1_4=0, var_1_5=0, var_1_6=4, var_1_9=4] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_14=500, last_1_var_1_17=16, last_1_var_1_6=4, last_1_var_1_9=4, var_1_10=0, var_1_11=78/5, var_1_14=500, var_1_15=3221225470, var_1_16=3221225470, var_1_17=16, var_1_19=-16383, var_1_1=0, var_1_20=4, var_1_21=0, var_1_22=-25, var_1_4=0, var_1_5=0, var_1_6=4, var_1_9=4] [L113] RET assume_abort_if_not(var_1_19 <= 16383) VAL [isInitial=1, last_1_var_1_14=500, last_1_var_1_17=16, last_1_var_1_6=4, last_1_var_1_9=4, var_1_10=0, var_1_11=78/5, var_1_14=500, var_1_15=3221225470, var_1_16=3221225470, var_1_17=16, var_1_19=-16383, var_1_1=0, var_1_20=4, var_1_21=0, var_1_22=-25, var_1_4=0, var_1_5=0, var_1_6=4, var_1_9=4] [L114] var_1_20 = __VERIFIER_nondet_short() [L115] CALL assume_abort_if_not(var_1_20 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_14=500, last_1_var_1_17=16, last_1_var_1_6=4, last_1_var_1_9=4, var_1_10=0, var_1_11=78/5, var_1_14=500, var_1_15=3221225470, var_1_16=3221225470, var_1_17=16, var_1_19=-16383, var_1_1=0, var_1_20=0, var_1_21=0, var_1_22=-25, var_1_4=0, var_1_5=0, var_1_6=4, var_1_9=4] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_14=500, last_1_var_1_17=16, last_1_var_1_6=4, last_1_var_1_9=4, var_1_10=0, var_1_11=78/5, var_1_14=500, var_1_15=3221225470, var_1_16=3221225470, var_1_17=16, var_1_19=-16383, var_1_1=0, var_1_20=0, var_1_21=0, var_1_22=-25, var_1_4=0, var_1_5=0, var_1_6=4, var_1_9=4] [L115] RET assume_abort_if_not(var_1_20 >= 0) VAL [isInitial=1, last_1_var_1_14=500, last_1_var_1_17=16, last_1_var_1_6=4, last_1_var_1_9=4, var_1_10=0, var_1_11=78/5, var_1_14=500, var_1_15=3221225470, var_1_16=3221225470, var_1_17=16, var_1_19=-16383, var_1_1=0, var_1_20=0, var_1_21=0, var_1_22=-25, var_1_4=0, var_1_5=0, var_1_6=4, var_1_9=4] [L116] CALL assume_abort_if_not(var_1_20 <= 16383) VAL [\old(cond)=1, isInitial=1, last_1_var_1_14=500, last_1_var_1_17=16, last_1_var_1_6=4, last_1_var_1_9=4, var_1_10=0, var_1_11=78/5, var_1_14=500, var_1_15=3221225470, var_1_16=3221225470, var_1_17=16, var_1_19=-16383, var_1_1=0, var_1_20=0, var_1_21=0, var_1_22=-25, var_1_4=0, var_1_5=0, var_1_6=4, var_1_9=4] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_14=500, last_1_var_1_17=16, last_1_var_1_6=4, last_1_var_1_9=4, var_1_10=0, var_1_11=78/5, var_1_14=500, var_1_15=3221225470, var_1_16=3221225470, var_1_17=16, var_1_19=-16383, var_1_1=0, var_1_20=0, var_1_21=0, var_1_22=-25, var_1_4=0, var_1_5=0, var_1_6=4, var_1_9=4] [L116] RET assume_abort_if_not(var_1_20 <= 16383) VAL [isInitial=1, last_1_var_1_14=500, last_1_var_1_17=16, last_1_var_1_6=4, last_1_var_1_9=4, var_1_10=0, var_1_11=78/5, var_1_14=500, var_1_15=3221225470, var_1_16=3221225470, var_1_17=16, var_1_19=-16383, var_1_1=0, var_1_20=0, var_1_21=0, var_1_22=-25, var_1_4=0, var_1_5=0, var_1_6=4, var_1_9=4] [L117] var_1_21 = __VERIFIER_nondet_short() [L118] CALL assume_abort_if_not(var_1_21 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_14=500, last_1_var_1_17=16, last_1_var_1_6=4, last_1_var_1_9=4, var_1_10=0, var_1_11=78/5, var_1_14=500, var_1_15=3221225470, var_1_16=3221225470, var_1_17=16, var_1_19=-16383, var_1_1=0, var_1_20=0, var_1_21=0, var_1_22=-25, var_1_4=0, var_1_5=0, var_1_6=4, var_1_9=4] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_14=500, last_1_var_1_17=16, last_1_var_1_6=4, last_1_var_1_9=4, var_1_10=0, var_1_11=78/5, var_1_14=500, var_1_15=3221225470, var_1_16=3221225470, var_1_17=16, var_1_19=-16383, var_1_1=0, var_1_20=0, var_1_21=0, var_1_22=-25, var_1_4=0, var_1_5=0, var_1_6=4, var_1_9=4] [L118] RET assume_abort_if_not(var_1_21 >= 0) VAL [isInitial=1, last_1_var_1_14=500, last_1_var_1_17=16, last_1_var_1_6=4, last_1_var_1_9=4, var_1_10=0, var_1_11=78/5, var_1_14=500, var_1_15=3221225470, var_1_16=3221225470, var_1_17=16, var_1_19=-16383, var_1_1=0, var_1_20=0, var_1_21=0, var_1_22=-25, var_1_4=0, var_1_5=0, var_1_6=4, var_1_9=4] [L119] CALL assume_abort_if_not(var_1_21 <= 16383) VAL [\old(cond)=1, isInitial=1, last_1_var_1_14=500, last_1_var_1_17=16, last_1_var_1_6=4, last_1_var_1_9=4, var_1_10=0, var_1_11=78/5, var_1_14=500, var_1_15=3221225470, var_1_16=3221225470, var_1_17=16, var_1_19=-16383, var_1_1=0, var_1_20=0, var_1_21=0, var_1_22=-25, var_1_4=0, var_1_5=0, var_1_6=4, var_1_9=4] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_14=500, last_1_var_1_17=16, last_1_var_1_6=4, last_1_var_1_9=4, var_1_10=0, var_1_11=78/5, var_1_14=500, var_1_15=3221225470, var_1_16=3221225470, var_1_17=16, var_1_19=-16383, var_1_1=0, var_1_20=0, var_1_21=0, var_1_22=-25, var_1_4=0, var_1_5=0, var_1_6=4, var_1_9=4] [L119] RET assume_abort_if_not(var_1_21 <= 16383) VAL [isInitial=1, last_1_var_1_14=500, last_1_var_1_17=16, last_1_var_1_6=4, last_1_var_1_9=4, var_1_10=0, var_1_11=78/5, var_1_14=500, var_1_15=3221225470, var_1_16=3221225470, var_1_17=16, var_1_19=-16383, var_1_1=0, var_1_20=0, var_1_21=0, var_1_22=-25, var_1_4=0, var_1_5=0, var_1_6=4, var_1_9=4] [L120] var_1_22 = __VERIFIER_nondet_short() [L121] CALL assume_abort_if_not(var_1_22 >= -16383) VAL [\old(cond)=1, isInitial=1, last_1_var_1_14=500, last_1_var_1_17=16, last_1_var_1_6=4, last_1_var_1_9=4, var_1_10=0, var_1_11=78/5, var_1_14=500, var_1_15=3221225470, var_1_16=3221225470, var_1_17=16, var_1_19=-16383, var_1_1=0, var_1_20=0, var_1_21=0, var_1_22=-16383, var_1_4=0, var_1_5=0, var_1_6=4, var_1_9=4] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_14=500, last_1_var_1_17=16, last_1_var_1_6=4, last_1_var_1_9=4, var_1_10=0, var_1_11=78/5, var_1_14=500, var_1_15=3221225470, var_1_16=3221225470, var_1_17=16, var_1_19=-16383, var_1_1=0, var_1_20=0, var_1_21=0, var_1_22=-16383, var_1_4=0, var_1_5=0, var_1_6=4, var_1_9=4] [L121] RET assume_abort_if_not(var_1_22 >= -16383) VAL [isInitial=1, last_1_var_1_14=500, last_1_var_1_17=16, last_1_var_1_6=4, last_1_var_1_9=4, var_1_10=0, var_1_11=78/5, var_1_14=500, var_1_15=3221225470, var_1_16=3221225470, var_1_17=16, var_1_19=-16383, var_1_1=0, var_1_20=0, var_1_21=0, var_1_22=-16383, var_1_4=0, var_1_5=0, var_1_6=4, var_1_9=4] [L122] CALL assume_abort_if_not(var_1_22 <= 16383) VAL [\old(cond)=1, isInitial=1, last_1_var_1_14=500, last_1_var_1_17=16, last_1_var_1_6=4, last_1_var_1_9=4, var_1_10=0, var_1_11=78/5, var_1_14=500, var_1_15=3221225470, var_1_16=3221225470, var_1_17=16, var_1_19=-16383, var_1_1=0, var_1_20=0, var_1_21=0, var_1_22=-16383, var_1_4=0, var_1_5=0, var_1_6=4, var_1_9=4] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_14=500, last_1_var_1_17=16, last_1_var_1_6=4, last_1_var_1_9=4, var_1_10=0, var_1_11=78/5, var_1_14=500, var_1_15=3221225470, var_1_16=3221225470, var_1_17=16, var_1_19=-16383, var_1_1=0, var_1_20=0, var_1_21=0, var_1_22=-16383, var_1_4=0, var_1_5=0, var_1_6=4, var_1_9=4] [L122] RET assume_abort_if_not(var_1_22 <= 16383) VAL [isInitial=1, last_1_var_1_14=500, last_1_var_1_17=16, last_1_var_1_6=4, last_1_var_1_9=4, var_1_10=0, var_1_11=78/5, var_1_14=500, var_1_15=3221225470, var_1_16=3221225470, var_1_17=16, var_1_19=-16383, var_1_1=0, var_1_20=0, var_1_21=0, var_1_22=-16383, var_1_4=0, var_1_5=0, var_1_6=4, var_1_9=4] [L139] RET updateVariables() [L140] CALL step() [L46] signed long int stepLocal_0 = last_1_var_1_9; VAL [isInitial=1, last_1_var_1_14=500, last_1_var_1_17=16, last_1_var_1_6=4, last_1_var_1_9=4, stepLocal_0=4, var_1_10=0, var_1_11=78/5, var_1_14=500, var_1_15=3221225470, var_1_16=3221225470, var_1_17=16, var_1_19=-16383, var_1_1=0, var_1_20=0, var_1_21=0, var_1_22=-16383, var_1_4=0, var_1_5=0, var_1_6=4, var_1_9=4] [L47] COND FALSE !(\read(var_1_5)) VAL [isInitial=1, last_1_var_1_14=500, last_1_var_1_17=16, last_1_var_1_6=4, last_1_var_1_9=4, stepLocal_0=4, var_1_10=0, var_1_11=78/5, var_1_14=500, var_1_15=3221225470, var_1_16=3221225470, var_1_17=16, var_1_19=-16383, var_1_1=0, var_1_20=0, var_1_21=0, var_1_22=-16383, var_1_4=0, var_1_5=0, var_1_6=4, var_1_9=4] [L52] signed long int stepLocal_3 = last_1_var_1_9; VAL [isInitial=1, last_1_var_1_14=500, last_1_var_1_17=16, last_1_var_1_6=4, last_1_var_1_9=4, stepLocal_0=4, stepLocal_3=4, var_1_10=0, var_1_11=78/5, var_1_14=500, var_1_15=3221225470, var_1_16=3221225470, var_1_17=16, var_1_19=-16383, var_1_1=0, var_1_20=0, var_1_21=0, var_1_22=-16383, var_1_4=0, var_1_5=0, var_1_6=4, var_1_9=4] [L53] COND TRUE last_1_var_1_14 >= stepLocal_3 [L54] var_1_14 = (((((var_1_15) > ((var_1_16 - var_1_10))) ? (var_1_15) : ((var_1_16 - var_1_10)))) - last_1_var_1_17) VAL [isInitial=1, last_1_var_1_14=500, last_1_var_1_17=16, last_1_var_1_6=4, last_1_var_1_9=4, stepLocal_0=4, var_1_10=0, var_1_11=78/5, var_1_14=3221225454, var_1_15=3221225470, var_1_16=3221225470, var_1_17=16, var_1_19=-16383, var_1_1=0, var_1_20=0, var_1_21=0, var_1_22=-16383, var_1_4=0, var_1_5=0, var_1_6=4, var_1_9=4] [L56] COND TRUE var_1_6 <= var_1_14 VAL [isInitial=1, last_1_var_1_14=500, last_1_var_1_17=16, last_1_var_1_6=4, last_1_var_1_9=4, stepLocal_0=4, var_1_10=0, var_1_11=78/5, var_1_14=3221225454, var_1_15=3221225470, var_1_16=3221225470, var_1_17=16, var_1_19=-16383, var_1_1=0, var_1_20=0, var_1_21=0, var_1_22=-16383, var_1_4=0, var_1_5=0, var_1_6=4, var_1_9=4] [L57] COND TRUE (- var_1_14) > var_1_6 [L58] var_1_1 = 0 VAL [isInitial=1, last_1_var_1_14=500, last_1_var_1_17=16, last_1_var_1_6=4, last_1_var_1_9=4, stepLocal_0=4, var_1_10=0, var_1_11=78/5, var_1_14=3221225454, var_1_15=3221225470, var_1_16=3221225470, var_1_17=16, var_1_19=-16383, var_1_1=0, var_1_20=0, var_1_21=0, var_1_22=-16383, var_1_4=0, var_1_5=0, var_1_6=4, var_1_9=4] [L63] unsigned char stepLocal_2 = var_1_4; [L64] unsigned long int stepLocal_1 = var_1_14; VAL [isInitial=1, last_1_var_1_14=500, last_1_var_1_17=16, last_1_var_1_6=4, last_1_var_1_9=4, stepLocal_0=4, stepLocal_1=3221225454, stepLocal_2=0, var_1_10=0, var_1_11=78/5, var_1_14=3221225454, var_1_15=3221225470, var_1_16=3221225470, var_1_17=16, var_1_19=-16383, var_1_1=0, var_1_20=0, var_1_21=0, var_1_22=-16383, var_1_4=0, var_1_5=0, var_1_6=4, var_1_9=4] [L65] COND FALSE !(stepLocal_2 || var_1_1) VAL [isInitial=1, last_1_var_1_14=500, last_1_var_1_17=16, last_1_var_1_6=4, last_1_var_1_9=4, stepLocal_0=4, stepLocal_1=3221225454, var_1_10=0, var_1_11=78/5, var_1_14=3221225454, var_1_15=3221225470, var_1_16=3221225470, var_1_17=16, var_1_19=-16383, var_1_1=0, var_1_20=0, var_1_21=0, var_1_22=-16383, var_1_4=0, var_1_5=0, var_1_6=4, var_1_9=4] [L68] COND TRUE stepLocal_1 >= var_1_6 [L69] var_1_9 = var_1_10 VAL [isInitial=1, last_1_var_1_14=500, last_1_var_1_17=16, last_1_var_1_6=4, last_1_var_1_9=4, stepLocal_0=4, var_1_10=0, var_1_11=78/5, var_1_14=3221225454, var_1_15=3221225470, var_1_16=3221225470, var_1_17=16, var_1_19=-16383, var_1_1=0, var_1_20=0, var_1_21=0, var_1_22=-16383, var_1_4=0, var_1_5=0, var_1_6=4, var_1_9=0] [L74] unsigned char stepLocal_5 = var_1_1; [L75] unsigned char stepLocal_4 = var_1_1; VAL [isInitial=1, last_1_var_1_14=500, last_1_var_1_17=16, last_1_var_1_6=4, last_1_var_1_9=4, stepLocal_0=4, stepLocal_4=0, stepLocal_5=0, var_1_10=0, var_1_11=78/5, var_1_14=3221225454, var_1_15=3221225470, var_1_16=3221225470, var_1_17=16, var_1_19=-16383, var_1_1=0, var_1_20=0, var_1_21=0, var_1_22=-16383, var_1_4=0, var_1_5=0, var_1_6=4, var_1_9=0] [L76] COND FALSE !(stepLocal_4 && (var_1_5 && (var_1_12 < var_1_13))) VAL [isInitial=1, last_1_var_1_14=500, last_1_var_1_17=16, last_1_var_1_6=4, last_1_var_1_9=4, stepLocal_0=4, stepLocal_5=0, var_1_10=0, var_1_11=78/5, var_1_14=3221225454, var_1_15=3221225470, var_1_16=3221225470, var_1_17=16, var_1_19=-16383, var_1_1=0, var_1_20=0, var_1_21=0, var_1_22=-16383, var_1_4=0, var_1_5=0, var_1_6=4, var_1_9=0] [L83] COND TRUE var_1_14 <= var_1_14 VAL [isInitial=1, last_1_var_1_14=500, last_1_var_1_17=16, last_1_var_1_6=4, last_1_var_1_9=4, stepLocal_0=4, stepLocal_5=0, var_1_10=0, var_1_11=78/5, var_1_14=3221225454, var_1_15=3221225470, var_1_16=3221225470, var_1_17=16, var_1_19=-16383, var_1_1=0, var_1_20=0, var_1_21=0, var_1_22=-16383, var_1_4=0, var_1_5=0, var_1_6=4, var_1_9=0] [L84] COND TRUE ! var_1_1 [L85] var_1_11 = (var_1_12 - var_1_13) VAL [isInitial=1, last_1_var_1_14=500, last_1_var_1_17=16, last_1_var_1_6=4, last_1_var_1_9=4, stepLocal_0=4, stepLocal_5=0, var_1_10=0, var_1_14=3221225454, var_1_15=3221225470, var_1_16=3221225470, var_1_17=16, var_1_19=-16383, var_1_1=0, var_1_20=0, var_1_21=0, var_1_22=-16383, var_1_4=0, var_1_5=0, var_1_6=4, var_1_9=0] [L140] RET step() [L141] CALL, EXPR property() [L131-L132] return ((((((var_1_6 <= var_1_14) ? (((- var_1_14) > var_1_6) ? (var_1_1 == ((unsigned char) 0)) : 1) : (var_1_1 == ((unsigned char) (var_1_4 || var_1_5)))) && (var_1_5 ? (((last_1_var_1_14 * (last_1_var_1_6 + last_1_var_1_17)) > last_1_var_1_9) ? (var_1_6 == ((unsigned short int) 256)) : 1) : 1)) && ((var_1_4 || var_1_1) ? (var_1_9 == ((unsigned short int) ((((32) < (var_1_10)) ? (32) : (var_1_10))))) : ((var_1_14 >= var_1_6) ? (var_1_9 == ((unsigned short int) var_1_10)) : (var_1_9 == ((unsigned short int) var_1_10))))) && ((var_1_14 <= var_1_14) ? ((! var_1_1) ? (var_1_11 == ((double) (var_1_12 - var_1_13))) : 1) : (var_1_11 == ((double) var_1_12)))) && ((last_1_var_1_14 >= last_1_var_1_9) ? (var_1_14 == ((unsigned long int) (((((var_1_15) > ((var_1_16 - var_1_10))) ? (var_1_15) : ((var_1_16 - var_1_10)))) - last_1_var_1_17))) : 1)) && ((var_1_1 && (var_1_5 && (var_1_12 < var_1_13))) ? ((var_1_1 || (last_1_var_1_17 >= ((((var_1_14) > (var_1_6)) ? (var_1_14) : (var_1_6))))) ? (var_1_17 == ((signed short int) (((((((((var_1_19) > (256)) ? (var_1_19) : (256))) + (var_1_20 - var_1_21))) < ((var_1_22 + 64))) ? ((((((var_1_19) > (256)) ? (var_1_19) : (256))) + (var_1_20 - var_1_21))) : ((var_1_22 + 64)))))) : (var_1_17 == ((signed short int) var_1_19))) : 1) ; VAL [\result=0, isInitial=1, last_1_var_1_14=500, last_1_var_1_17=16, last_1_var_1_6=4, last_1_var_1_9=4, var_1_10=0, var_1_14=3221225454, var_1_15=3221225470, var_1_16=3221225470, var_1_17=16, var_1_19=-16383, var_1_1=0, var_1_20=0, var_1_21=0, var_1_22=-16383, var_1_4=0, var_1_5=0, var_1_6=4, var_1_9=0] [L141] RET, EXPR property() [L141] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [isInitial=1, last_1_var_1_14=500, last_1_var_1_17=16, last_1_var_1_6=4, last_1_var_1_9=4, var_1_10=0, var_1_14=3221225454, var_1_15=3221225470, var_1_16=3221225470, var_1_17=16, var_1_19=-16383, var_1_1=0, var_1_20=0, var_1_21=0, var_1_22=-16383, var_1_4=0, var_1_5=0, var_1_6=4, var_1_9=0] [L19] reach_error() VAL [isInitial=1, last_1_var_1_14=500, last_1_var_1_17=16, last_1_var_1_6=4, last_1_var_1_9=4, var_1_10=0, var_1_14=3221225454, var_1_15=3221225470, var_1_16=3221225470, var_1_17=16, var_1_19=-16383, var_1_1=0, var_1_20=0, var_1_21=0, var_1_22=-16383, var_1_4=0, var_1_5=0, var_1_6=4, var_1_9=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 64 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 24.9s, OverallIterations: 12, TraceHistogramMax: 20, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 6.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1273 SdHoareTripleChecker+Valid, 3.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1252 mSDsluCounter, 2722 SdHoareTripleChecker+Invalid, 2.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1725 mSDsCounter, 642 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1843 IncrementalHoareTripleChecker+Invalid, 2485 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 642 mSolverCounterUnsat, 997 mSDtfsCounter, 1843 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1032 GetRequests, 920 SyntacticMatches, 4 SemanticMatches, 108 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 629 ImplicationChecksByTransitivity, 3.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=363occurred in iteration=10, InterpolantAutomatonStates: 90, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 11 MinimizatonAttempts, 183 StatesRemovedByMinimization, 10 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 2.2s SatisfiabilityAnalysisTime, 14.0s InterpolantComputationTime, 2222 NumberOfCodeBlocks, 2222 NumberOfCodeBlocksAsserted, 17 NumberOfCheckSat, 2333 ConstructedInterpolants, 0 QuantifiedInterpolants, 9754 SizeOfPredicates, 17 NumberOfNonLiveVariables, 1246 ConjunctsInSsa, 41 ConjunctsInUnsatCore, 18 InterpolantComputations, 8 PerfectInterpolantSequences, 13180/13680 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 [2024-11-27 20:30:48,257 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bb8bd10-436e-4d18-9aa1-86a0ea2f26c6/bin/uautomizer-verify-aQ6SnzHsRB/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_4bb8bd10-436e-4d18-9aa1-86a0ea2f26c6/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bb8bd10-436e-4d18-9aa1-86a0ea2f26c6/bin/uautomizer-verify-aQ6SnzHsRB/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bb8bd10-436e-4d18-9aa1-86a0ea2f26c6/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bb8bd10-436e-4d18-9aa1-86a0ea2f26c6/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_50-while_file-4.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bb8bd10-436e-4d18-9aa1-86a0ea2f26c6/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bb8bd10-436e-4d18-9aa1-86a0ea2f26c6/bin/uautomizer-verify-aQ6SnzHsRB --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 fb80e4f0533bc0d87718a3c946d158e7005d734d62d8e11c16c799aba4b0f82b --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-27 20:30:50,710 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-27 20:30:50,850 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bb8bd10-436e-4d18-9aa1-86a0ea2f26c6/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-11-27 20:30:50,859 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-27 20:30:50,863 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-27 20:30:50,903 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-27 20:30:50,904 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-27 20:30:50,904 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-27 20:30:50,905 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-27 20:30:50,905 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-27 20:30:50,905 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-27 20:30:50,906 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-27 20:30:50,907 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-27 20:30:50,907 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-27 20:30:50,907 INFO L153 SettingsManager]: * Use SBE=true [2024-11-27 20:30:50,907 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-27 20:30:50,908 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-27 20:30:50,908 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-27 20:30:50,908 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-27 20:30:50,908 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-27 20:30:50,909 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-27 20:30:50,909 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-27 20:30:50,909 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-27 20:30:50,909 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-27 20:30:50,909 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-27 20:30:50,909 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-27 20:30:50,909 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-27 20:30:50,909 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-27 20:30:50,910 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-27 20:30:50,910 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-27 20:30:50,910 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-27 20:30:50,910 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-27 20:30:50,910 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-27 20:30:50,910 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-27 20:30:50,910 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 20:30:50,911 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-27 20:30:50,911 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-27 20:30:50,911 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-27 20:30:50,912 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-27 20:30:50,912 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 20:30:50,912 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-27 20:30:50,912 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-27 20:30:50,912 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-27 20:30:50,912 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-27 20:30:50,912 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2024-11-27 20:30:50,912 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-27 20:30:50,912 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-27 20:30:50,912 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-27 20:30:50,912 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-27 20:30:50,913 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-27 20:30:50,913 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_4bb8bd10-436e-4d18-9aa1-86a0ea2f26c6/bin/uautomizer-verify-aQ6SnzHsRB 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 -> fb80e4f0533bc0d87718a3c946d158e7005d734d62d8e11c16c799aba4b0f82b [2024-11-27 20:30:51,220 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-27 20:30:51,234 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-27 20:30:51,237 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-27 20:30:51,238 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-27 20:30:51,238 INFO L274 PluginConnector]: CDTParser initialized [2024-11-27 20:30:51,240 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bb8bd10-436e-4d18-9aa1-86a0ea2f26c6/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_50-while_file-4.i [2024-11-27 20:30:54,271 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bb8bd10-436e-4d18-9aa1-86a0ea2f26c6/bin/uautomizer-verify-aQ6SnzHsRB/data/04136027c/eb5753d7d3474a5b85634f7fbb225e07/FLAG16ac32bdd [2024-11-27 20:30:54,556 INFO L384 CDTParser]: Found 1 translation units. [2024-11-27 20:30:54,556 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bb8bd10-436e-4d18-9aa1-86a0ea2f26c6/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_50-while_file-4.i [2024-11-27 20:30:54,570 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bb8bd10-436e-4d18-9aa1-86a0ea2f26c6/bin/uautomizer-verify-aQ6SnzHsRB/data/04136027c/eb5753d7d3474a5b85634f7fbb225e07/FLAG16ac32bdd [2024-11-27 20:30:54,596 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bb8bd10-436e-4d18-9aa1-86a0ea2f26c6/bin/uautomizer-verify-aQ6SnzHsRB/data/04136027c/eb5753d7d3474a5b85634f7fbb225e07 [2024-11-27 20:30:54,602 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-27 20:30:54,604 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-27 20:30:54,605 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-27 20:30:54,605 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-27 20:30:54,611 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-27 20:30:54,612 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 08:30:54" (1/1) ... [2024-11-27 20:30:54,613 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@545d0930 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:30:54, skipping insertion in model container [2024-11-27 20:30:54,614 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 08:30:54" (1/1) ... [2024-11-27 20:30:54,640 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-27 20:30:54,818 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_4bb8bd10-436e-4d18-9aa1-86a0ea2f26c6/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_50-while_file-4.i[914,927] [2024-11-27 20:30:54,909 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-27 20:30:54,934 INFO L200 MainTranslator]: Completed pre-run [2024-11-27 20:30:54,945 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_4bb8bd10-436e-4d18-9aa1-86a0ea2f26c6/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_50-while_file-4.i[914,927] [2024-11-27 20:30:54,994 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-27 20:30:55,015 INFO L204 MainTranslator]: Completed translation [2024-11-27 20:30:55,016 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:30:55 WrapperNode [2024-11-27 20:30:55,016 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-27 20:30:55,017 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-27 20:30:55,017 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-27 20:30:55,017 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-27 20:30:55,023 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:30:55" (1/1) ... [2024-11-27 20:30:55,033 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:30:55" (1/1) ... [2024-11-27 20:30:55,058 INFO L138 Inliner]: procedures = 27, calls = 33, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 139 [2024-11-27 20:30:55,059 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-27 20:30:55,059 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-27 20:30:55,059 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-27 20:30:55,059 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-27 20:30:55,070 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:30:55" (1/1) ... [2024-11-27 20:30:55,070 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:30:55" (1/1) ... [2024-11-27 20:30:55,074 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:30:55" (1/1) ... [2024-11-27 20:30:55,088 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]. [2024-11-27 20:30:55,089 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:30:55" (1/1) ... [2024-11-27 20:30:55,089 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:30:55" (1/1) ... [2024-11-27 20:30:55,106 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:30:55" (1/1) ... [2024-11-27 20:30:55,107 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:30:55" (1/1) ... [2024-11-27 20:30:55,114 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:30:55" (1/1) ... [2024-11-27 20:30:55,120 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:30:55" (1/1) ... [2024-11-27 20:30:55,121 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:30:55" (1/1) ... [2024-11-27 20:30:55,128 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-27 20:30:55,132 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-27 20:30:55,132 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-27 20:30:55,133 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-27 20:30:55,134 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:30:55" (1/1) ... [2024-11-27 20:30:55,145 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 20:30:55,160 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bb8bd10-436e-4d18-9aa1-86a0ea2f26c6/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:30:55,171 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bb8bd10-436e-4d18-9aa1-86a0ea2f26c6/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-27 20:30:55,173 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bb8bd10-436e-4d18-9aa1-86a0ea2f26c6/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-27 20:30:55,197 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-27 20:30:55,198 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-27 20:30:55,198 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-27 20:30:55,198 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-27 20:30:55,198 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-27 20:30:55,198 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-27 20:30:55,283 INFO L234 CfgBuilder]: Building ICFG [2024-11-27 20:30:55,285 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-27 20:30:56,407 INFO L? ?]: Removed 20 outVars from TransFormulas that were not future-live. [2024-11-27 20:30:56,407 INFO L283 CfgBuilder]: Performing block encoding [2024-11-27 20:30:56,418 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-27 20:30:56,419 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-27 20:30:56,419 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 08:30:56 BoogieIcfgContainer [2024-11-27 20:30:56,419 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-27 20:30:56,422 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-27 20:30:56,422 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-27 20:30:56,428 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-27 20:30:56,428 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.11 08:30:54" (1/3) ... [2024-11-27 20:30:56,429 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a20822b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 08:30:56, skipping insertion in model container [2024-11-27 20:30:56,429 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:30:55" (2/3) ... [2024-11-27 20:30:56,429 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a20822b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 08:30:56, skipping insertion in model container [2024-11-27 20:30:56,429 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 08:30:56" (3/3) ... [2024-11-27 20:30:56,430 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_loopvsstraightlinecode_50-while_file-4.i [2024-11-27 20:30:56,464 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-27 20:30:56,465 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_loopvsstraightlinecode_50-while_file-4.i that has 2 procedures, 64 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-27 20:30:56,539 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-27 20:30:56,556 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;@15adc177, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-27 20:30:56,557 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-27 20:30:56,562 INFO L276 IsEmpty]: Start isEmpty. Operand has 64 states, 41 states have (on average 1.3902439024390243) internal successors, (57), 42 states have internal predecessors, (57), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-11-27 20:30:56,576 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2024-11-27 20:30:56,577 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:30:56,578 INFO L218 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:30:56,579 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:30:56,584 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:30:56,586 INFO L85 PathProgramCache]: Analyzing trace with hash -246695732, now seen corresponding path program 1 times [2024-11-27 20:30:56,601 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-27 20:30:56,601 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1265791893] [2024-11-27 20:30:56,601 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:30:56,602 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-27 20:30:56,602 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bb8bd10-436e-4d18-9aa1-86a0ea2f26c6/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-27 20:30:56,606 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bb8bd10-436e-4d18-9aa1-86a0ea2f26c6/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-27 20:30:56,608 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bb8bd10-436e-4d18-9aa1-86a0ea2f26c6/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2024-11-27 20:30:56,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:30:56,910 INFO L256 TraceCheckSpWp]: Trace formula consists of 212 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-27 20:30:56,924 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:30:56,970 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 350 proven. 0 refuted. 0 times theorem prover too weak. 410 trivial. 0 not checked. [2024-11-27 20:30:56,970 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 20:30:56,971 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-27 20:30:56,971 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1265791893] [2024-11-27 20:30:56,971 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1265791893] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:30:56,972 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:30:56,972 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-27 20:30:56,973 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [602847763] [2024-11-27 20:30:56,974 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:30:56,978 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-27 20:30:56,978 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-27 20:30:56,996 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-27 20:30:56,997 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-27 20:30:56,999 INFO L87 Difference]: Start difference. First operand has 64 states, 41 states have (on average 1.3902439024390243) internal successors, (57), 42 states have internal predecessors, (57), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) Second operand has 2 states, 2 states have (on average 18.0) internal successors, (36), 2 states have internal predecessors, (36), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2024-11-27 20:30:57,027 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:30:57,028 INFO L93 Difference]: Finished difference Result 121 states and 208 transitions. [2024-11-27 20:30:57,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-27 20:30:57,030 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 18.0) internal successors, (36), 2 states have internal predecessors, (36), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 129 [2024-11-27 20:30:57,030 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:30:57,039 INFO L225 Difference]: With dead ends: 121 [2024-11-27 20:30:57,039 INFO L226 Difference]: Without dead ends: 60 [2024-11-27 20:30:57,044 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 128 GetRequests, 128 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-27 20:30:57,049 INFO L435 NwaCegarLoop]: 89 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, 89 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 [2024-11-27 20:30:57,050 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 89 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-27 20:30:57,066 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2024-11-27 20:30:57,092 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 60. [2024-11-27 20:30:57,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60 states, 38 states have (on average 1.2894736842105263) internal successors, (49), 38 states have internal predecessors, (49), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-11-27 20:30:57,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 89 transitions. [2024-11-27 20:30:57,107 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 89 transitions. Word has length 129 [2024-11-27 20:30:57,107 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:30:57,107 INFO L471 AbstractCegarLoop]: Abstraction has 60 states and 89 transitions. [2024-11-27 20:30:57,109 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 18.0) internal successors, (36), 2 states have internal predecessors, (36), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2024-11-27 20:30:57,109 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 89 transitions. [2024-11-27 20:30:57,112 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2024-11-27 20:30:57,114 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:30:57,114 INFO L218 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:30:57,122 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bb8bd10-436e-4d18-9aa1-86a0ea2f26c6/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2024-11-27 20:30:57,315 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bb8bd10-436e-4d18-9aa1-86a0ea2f26c6/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-27 20:30:57,315 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:30:57,316 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:30:57,317 INFO L85 PathProgramCache]: Analyzing trace with hash -157864659, now seen corresponding path program 1 times [2024-11-27 20:30:57,317 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-27 20:30:57,317 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1691578155] [2024-11-27 20:30:57,318 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:30:57,318 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-27 20:30:57,318 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bb8bd10-436e-4d18-9aa1-86a0ea2f26c6/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-27 20:30:57,320 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bb8bd10-436e-4d18-9aa1-86a0ea2f26c6/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-27 20:30:57,321 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bb8bd10-436e-4d18-9aa1-86a0ea2f26c6/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2024-11-27 20:30:57,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:30:57,600 INFO L256 TraceCheckSpWp]: Trace formula consists of 214 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-27 20:30:57,606 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:30:59,184 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-27 20:30:59,186 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 20:30:59,187 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-27 20:30:59,187 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1691578155] [2024-11-27 20:30:59,187 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1691578155] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:30:59,187 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:30:59,187 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-27 20:30:59,187 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1050739673] [2024-11-27 20:30:59,188 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:30:59,190 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-27 20:30:59,190 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-27 20:30:59,191 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-27 20:30:59,192 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-27 20:30:59,192 INFO L87 Difference]: Start difference. First operand 60 states and 89 transitions. Second operand has 5 states, 5 states have (on average 6.6) internal successors, (33), 4 states have internal predecessors, (33), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-27 20:31:00,576 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:31:00,576 INFO L93 Difference]: Finished difference Result 175 states and 262 transitions. [2024-11-27 20:31:00,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-27 20:31:00,586 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.6) internal successors, (33), 4 states have internal predecessors, (33), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 130 [2024-11-27 20:31:00,586 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:31:00,588 INFO L225 Difference]: With dead ends: 175 [2024-11-27 20:31:00,588 INFO L226 Difference]: Without dead ends: 118 [2024-11-27 20:31:00,589 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 131 GetRequests, 126 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-27 20:31:00,590 INFO L435 NwaCegarLoop]: 82 mSDtfsCounter, 51 mSDsluCounter, 190 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 272 SdHoareTripleChecker+Invalid, 119 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 78 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-27 20:31:00,590 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [51 Valid, 272 Invalid, 119 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 78 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-27 20:31:00,591 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states. [2024-11-27 20:31:00,616 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 101. [2024-11-27 20:31:00,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 101 states, 58 states have (on average 1.2241379310344827) internal successors, (71), 58 states have internal predecessors, (71), 40 states have call successors, (40), 2 states have call predecessors, (40), 2 states have return successors, (40), 40 states have call predecessors, (40), 40 states have call successors, (40) [2024-11-27 20:31:00,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 151 transitions. [2024-11-27 20:31:00,619 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 151 transitions. Word has length 130 [2024-11-27 20:31:00,620 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:31:00,620 INFO L471 AbstractCegarLoop]: Abstraction has 101 states and 151 transitions. [2024-11-27 20:31:00,621 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.6) internal successors, (33), 4 states have internal predecessors, (33), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-27 20:31:00,621 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 151 transitions. [2024-11-27 20:31:00,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2024-11-27 20:31:00,623 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:31:00,623 INFO L218 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:31:00,630 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bb8bd10-436e-4d18-9aa1-86a0ea2f26c6/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2024-11-27 20:31:00,823 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bb8bd10-436e-4d18-9aa1-86a0ea2f26c6/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-27 20:31:00,824 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:31:00,825 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:31:00,826 INFO L85 PathProgramCache]: Analyzing trace with hash -416030097, now seen corresponding path program 1 times [2024-11-27 20:31:00,826 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-27 20:31:00,827 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1269680442] [2024-11-27 20:31:00,827 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:31:00,827 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-27 20:31:00,827 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bb8bd10-436e-4d18-9aa1-86a0ea2f26c6/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-27 20:31:00,831 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bb8bd10-436e-4d18-9aa1-86a0ea2f26c6/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-27 20:31:00,838 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bb8bd10-436e-4d18-9aa1-86a0ea2f26c6/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2024-11-27 20:31:01,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:31:01,055 INFO L256 TraceCheckSpWp]: Trace formula consists of 215 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-27 20:31:01,060 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:31:02,384 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 179 proven. 99 refuted. 0 times theorem prover too weak. 482 trivial. 0 not checked. [2024-11-27 20:31:02,387 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:31:03,316 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 9 proven. 102 refuted. 0 times theorem prover too weak. 649 trivial. 0 not checked. [2024-11-27 20:31:03,319 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-27 20:31:03,319 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1269680442] [2024-11-27 20:31:03,320 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1269680442] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 20:31:03,320 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-27 20:31:03,320 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 14 [2024-11-27 20:31:03,320 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1184045086] [2024-11-27 20:31:03,320 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-27 20:31:03,321 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-27 20:31:03,321 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-27 20:31:03,326 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-27 20:31:03,326 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=128, Unknown=0, NotChecked=0, Total=182 [2024-11-27 20:31:03,326 INFO L87 Difference]: Start difference. First operand 101 states and 151 transitions. Second operand has 14 states, 14 states have (on average 3.642857142857143) internal successors, (51), 14 states have internal predecessors, (51), 3 states have call successors, (38), 3 states have call predecessors, (38), 7 states have return successors, (39), 3 states have call predecessors, (39), 3 states have call successors, (39) [2024-11-27 20:31:05,186 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:31:05,187 INFO L93 Difference]: Finished difference Result 200 states and 276 transitions. [2024-11-27 20:31:05,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-27 20:31:05,188 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 3.642857142857143) internal successors, (51), 14 states have internal predecessors, (51), 3 states have call successors, (38), 3 states have call predecessors, (38), 7 states have return successors, (39), 3 states have call predecessors, (39), 3 states have call successors, (39) Word has length 130 [2024-11-27 20:31:05,189 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:31:05,192 INFO L225 Difference]: With dead ends: 200 [2024-11-27 20:31:05,192 INFO L226 Difference]: Without dead ends: 140 [2024-11-27 20:31:05,193 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 268 GetRequests, 245 SyntacticMatches, 2 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 86 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=155, Invalid=351, Unknown=0, NotChecked=0, Total=506 [2024-11-27 20:31:05,197 INFO L435 NwaCegarLoop]: 58 mSDtfsCounter, 151 mSDsluCounter, 179 mSDsCounter, 0 mSdLazyCounter, 284 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 153 SdHoareTripleChecker+Valid, 237 SdHoareTripleChecker+Invalid, 313 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 284 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-27 20:31:05,197 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [153 Valid, 237 Invalid, 313 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 284 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-27 20:31:05,198 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states. [2024-11-27 20:31:05,241 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 120. [2024-11-27 20:31:05,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 120 states, 73 states have (on average 1.095890410958904) internal successors, (80), 73 states have internal predecessors, (80), 40 states have call successors, (40), 6 states have call predecessors, (40), 6 states have return successors, (40), 40 states have call predecessors, (40), 40 states have call successors, (40) [2024-11-27 20:31:05,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 160 transitions. [2024-11-27 20:31:05,248 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 160 transitions. Word has length 130 [2024-11-27 20:31:05,248 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:31:05,248 INFO L471 AbstractCegarLoop]: Abstraction has 120 states and 160 transitions. [2024-11-27 20:31:05,249 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 3.642857142857143) internal successors, (51), 14 states have internal predecessors, (51), 3 states have call successors, (38), 3 states have call predecessors, (38), 7 states have return successors, (39), 3 states have call predecessors, (39), 3 states have call successors, (39) [2024-11-27 20:31:05,249 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 160 transitions. [2024-11-27 20:31:05,250 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2024-11-27 20:31:05,251 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:31:05,253 INFO L218 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:31:05,261 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bb8bd10-436e-4d18-9aa1-86a0ea2f26c6/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2024-11-27 20:31:05,453 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bb8bd10-436e-4d18-9aa1-86a0ea2f26c6/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-27 20:31:05,454 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:31:05,454 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:31:05,454 INFO L85 PathProgramCache]: Analyzing trace with hash 1983351693, now seen corresponding path program 1 times [2024-11-27 20:31:05,455 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-27 20:31:05,455 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1115210813] [2024-11-27 20:31:05,455 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:31:05,455 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-27 20:31:05,455 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bb8bd10-436e-4d18-9aa1-86a0ea2f26c6/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-27 20:31:05,462 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bb8bd10-436e-4d18-9aa1-86a0ea2f26c6/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-27 20:31:05,463 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bb8bd10-436e-4d18-9aa1-86a0ea2f26c6/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2024-11-27 20:31:05,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:31:05,671 INFO L256 TraceCheckSpWp]: Trace formula consists of 215 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-27 20:31:05,675 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:31:06,177 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 93 proven. 54 refuted. 0 times theorem prover too weak. 613 trivial. 0 not checked. [2024-11-27 20:31:06,177 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:31:06,598 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 3 proven. 54 refuted. 0 times theorem prover too weak. 703 trivial. 0 not checked. [2024-11-27 20:31:06,599 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-27 20:31:06,599 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1115210813] [2024-11-27 20:31:06,599 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1115210813] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 20:31:06,599 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-27 20:31:06,599 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 9 [2024-11-27 20:31:06,599 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [496652053] [2024-11-27 20:31:06,600 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-27 20:31:06,601 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-27 20:31:06,602 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-27 20:31:06,603 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-27 20:31:06,603 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-27 20:31:06,603 INFO L87 Difference]: Start difference. First operand 120 states and 160 transitions. Second operand has 9 states, 9 states have (on average 4.777777777777778) internal successors, (43), 9 states have internal predecessors, (43), 2 states have call successors, (38), 2 states have call predecessors, (38), 4 states have return successors, (39), 2 states have call predecessors, (39), 2 states have call successors, (39) [2024-11-27 20:31:08,143 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:31:08,144 INFO L93 Difference]: Finished difference Result 265 states and 349 transitions. [2024-11-27 20:31:08,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-27 20:31:08,145 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 4.777777777777778) internal successors, (43), 9 states have internal predecessors, (43), 2 states have call successors, (38), 2 states have call predecessors, (38), 4 states have return successors, (39), 2 states have call predecessors, (39), 2 states have call successors, (39) Word has length 131 [2024-11-27 20:31:08,146 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:31:08,152 INFO L225 Difference]: With dead ends: 265 [2024-11-27 20:31:08,152 INFO L226 Difference]: Without dead ends: 196 [2024-11-27 20:31:08,153 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 274 GetRequests, 253 SyntacticMatches, 1 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=129, Invalid=333, Unknown=0, NotChecked=0, Total=462 [2024-11-27 20:31:08,157 INFO L435 NwaCegarLoop]: 96 mSDtfsCounter, 100 mSDsluCounter, 254 mSDsCounter, 0 mSdLazyCounter, 346 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 102 SdHoareTripleChecker+Valid, 350 SdHoareTripleChecker+Invalid, 389 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 346 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-27 20:31:08,158 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [102 Valid, 350 Invalid, 389 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 346 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-27 20:31:08,159 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 196 states. [2024-11-27 20:31:08,202 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 196 to 176. [2024-11-27 20:31:08,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 176 states, 106 states have (on average 1.0943396226415094) internal successors, (116), 106 states have internal predecessors, (116), 60 states have call successors, (60), 9 states have call predecessors, (60), 9 states have return successors, (60), 60 states have call predecessors, (60), 60 states have call successors, (60) [2024-11-27 20:31:08,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 176 states to 176 states and 236 transitions. [2024-11-27 20:31:08,205 INFO L78 Accepts]: Start accepts. Automaton has 176 states and 236 transitions. Word has length 131 [2024-11-27 20:31:08,206 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:31:08,206 INFO L471 AbstractCegarLoop]: Abstraction has 176 states and 236 transitions. [2024-11-27 20:31:08,206 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 4.777777777777778) internal successors, (43), 9 states have internal predecessors, (43), 2 states have call successors, (38), 2 states have call predecessors, (38), 4 states have return successors, (39), 2 states have call predecessors, (39), 2 states have call successors, (39) [2024-11-27 20:31:08,206 INFO L276 IsEmpty]: Start isEmpty. Operand 176 states and 236 transitions. [2024-11-27 20:31:08,208 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2024-11-27 20:31:08,208 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:31:08,208 INFO L218 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:31:08,217 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bb8bd10-436e-4d18-9aa1-86a0ea2f26c6/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Ended with exit code 0 [2024-11-27 20:31:08,409 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bb8bd10-436e-4d18-9aa1-86a0ea2f26c6/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-27 20:31:08,409 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:31:08,410 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:31:08,410 INFO L85 PathProgramCache]: Analyzing trace with hash 1985198735, now seen corresponding path program 1 times [2024-11-27 20:31:08,410 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-27 20:31:08,410 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2051579304] [2024-11-27 20:31:08,410 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:31:08,410 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-27 20:31:08,411 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bb8bd10-436e-4d18-9aa1-86a0ea2f26c6/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-27 20:31:08,412 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bb8bd10-436e-4d18-9aa1-86a0ea2f26c6/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-27 20:31:08,414 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bb8bd10-436e-4d18-9aa1-86a0ea2f26c6/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2024-11-27 20:31:08,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:31:08,594 INFO L256 TraceCheckSpWp]: Trace formula consists of 214 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-27 20:31:08,597 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:31:09,675 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 93 proven. 54 refuted. 0 times theorem prover too weak. 613 trivial. 0 not checked. [2024-11-27 20:31:09,676 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:31:10,332 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 3 proven. 54 refuted. 0 times theorem prover too weak. 703 trivial. 0 not checked. [2024-11-27 20:31:10,332 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-27 20:31:10,332 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2051579304] [2024-11-27 20:31:10,332 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2051579304] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 20:31:10,332 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-27 20:31:10,332 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 7] total 9 [2024-11-27 20:31:10,332 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2091658021] [2024-11-27 20:31:10,332 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-27 20:31:10,333 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-27 20:31:10,333 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-27 20:31:10,334 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-27 20:31:10,334 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2024-11-27 20:31:10,334 INFO L87 Difference]: Start difference. First operand 176 states and 236 transitions. Second operand has 9 states, 9 states have (on average 5.111111111111111) internal successors, (46), 9 states have internal predecessors, (46), 2 states have call successors, (40), 3 states have call predecessors, (40), 5 states have return successors, (40), 2 states have call predecessors, (40), 2 states have call successors, (40) [2024-11-27 20:31:11,522 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:31:11,522 INFO L93 Difference]: Finished difference Result 268 states and 351 transitions. [2024-11-27 20:31:11,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-27 20:31:11,534 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.111111111111111) internal successors, (46), 9 states have internal predecessors, (46), 2 states have call successors, (40), 3 states have call predecessors, (40), 5 states have return successors, (40), 2 states have call predecessors, (40), 2 states have call successors, (40) Word has length 131 [2024-11-27 20:31:11,535 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:31:11,536 INFO L225 Difference]: With dead ends: 268 [2024-11-27 20:31:11,536 INFO L226 Difference]: Without dead ends: 143 [2024-11-27 20:31:11,537 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 266 GetRequests, 252 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=76, Invalid=134, Unknown=0, NotChecked=0, Total=210 [2024-11-27 20:31:11,538 INFO L435 NwaCegarLoop]: 63 mSDtfsCounter, 65 mSDsluCounter, 130 mSDsCounter, 0 mSdLazyCounter, 210 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 193 SdHoareTripleChecker+Invalid, 220 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 210 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-27 20:31:11,538 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [65 Valid, 193 Invalid, 220 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 210 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-27 20:31:11,539 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 143 states. [2024-11-27 20:31:11,556 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 143 to 114. [2024-11-27 20:31:11,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 114 states, 67 states have (on average 1.0746268656716418) internal successors, (72), 67 states have internal predecessors, (72), 40 states have call successors, (40), 6 states have call predecessors, (40), 6 states have return successors, (40), 40 states have call predecessors, (40), 40 states have call successors, (40) [2024-11-27 20:31:11,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 152 transitions. [2024-11-27 20:31:11,561 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 152 transitions. Word has length 131 [2024-11-27 20:31:11,561 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:31:11,561 INFO L471 AbstractCegarLoop]: Abstraction has 114 states and 152 transitions. [2024-11-27 20:31:11,562 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.111111111111111) internal successors, (46), 9 states have internal predecessors, (46), 2 states have call successors, (40), 3 states have call predecessors, (40), 5 states have return successors, (40), 2 states have call predecessors, (40), 2 states have call successors, (40) [2024-11-27 20:31:11,562 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 152 transitions. [2024-11-27 20:31:11,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2024-11-27 20:31:11,567 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:31:11,567 INFO L218 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:31:11,576 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bb8bd10-436e-4d18-9aa1-86a0ea2f26c6/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2024-11-27 20:31:11,768 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bb8bd10-436e-4d18-9aa1-86a0ea2f26c6/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-27 20:31:11,768 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:31:11,768 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:31:11,768 INFO L85 PathProgramCache]: Analyzing trace with hash 1191285994, now seen corresponding path program 1 times [2024-11-27 20:31:11,769 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-27 20:31:11,769 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2053055453] [2024-11-27 20:31:11,769 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:31:11,769 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-27 20:31:11,769 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bb8bd10-436e-4d18-9aa1-86a0ea2f26c6/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-27 20:31:11,771 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bb8bd10-436e-4d18-9aa1-86a0ea2f26c6/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-27 20:31:11,772 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bb8bd10-436e-4d18-9aa1-86a0ea2f26c6/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2024-11-27 20:31:11,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:31:11,946 INFO L256 TraceCheckSpWp]: Trace formula consists of 217 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-27 20:31:11,948 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:31:12,506 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-27 20:31:12,506 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 20:31:12,507 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-27 20:31:12,507 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2053055453] [2024-11-27 20:31:12,507 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2053055453] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:31:12,507 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:31:12,507 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-27 20:31:12,507 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1075729814] [2024-11-27 20:31:12,507 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:31:12,508 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-27 20:31:12,508 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-27 20:31:12,508 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-27 20:31:12,508 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-27 20:31:12,509 INFO L87 Difference]: Start difference. First operand 114 states and 152 transitions. Second operand has 5 states, 5 states have (on average 6.8) internal successors, (34), 4 states have internal predecessors, (34), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-27 20:31:13,437 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:31:13,437 INFO L93 Difference]: Finished difference Result 239 states and 318 transitions. [2024-11-27 20:31:13,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-27 20:31:13,438 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.8) internal successors, (34), 4 states have internal predecessors, (34), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 131 [2024-11-27 20:31:13,438 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:31:13,440 INFO L225 Difference]: With dead ends: 239 [2024-11-27 20:31:13,440 INFO L226 Difference]: Without dead ends: 176 [2024-11-27 20:31:13,440 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 131 GetRequests, 127 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2024-11-27 20:31:13,441 INFO L435 NwaCegarLoop]: 129 mSDtfsCounter, 90 mSDsluCounter, 75 mSDsCounter, 0 mSdLazyCounter, 159 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 90 SdHoareTripleChecker+Valid, 204 SdHoareTripleChecker+Invalid, 160 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 159 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-27 20:31:13,441 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [90 Valid, 204 Invalid, 160 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 159 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-27 20:31:13,442 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 176 states. [2024-11-27 20:31:13,480 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 176 to 174. [2024-11-27 20:31:13,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 174 states, 104 states have (on average 1.0673076923076923) internal successors, (111), 104 states have internal predecessors, (111), 60 states have call successors, (60), 9 states have call predecessors, (60), 9 states have return successors, (60), 60 states have call predecessors, (60), 60 states have call successors, (60) [2024-11-27 20:31:13,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 174 states to 174 states and 231 transitions. [2024-11-27 20:31:13,483 INFO L78 Accepts]: Start accepts. Automaton has 174 states and 231 transitions. Word has length 131 [2024-11-27 20:31:13,484 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:31:13,484 INFO L471 AbstractCegarLoop]: Abstraction has 174 states and 231 transitions. [2024-11-27 20:31:13,484 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.8) internal successors, (34), 4 states have internal predecessors, (34), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-27 20:31:13,484 INFO L276 IsEmpty]: Start isEmpty. Operand 174 states and 231 transitions. [2024-11-27 20:31:13,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2024-11-27 20:31:13,488 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:31:13,488 INFO L218 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:31:13,495 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bb8bd10-436e-4d18-9aa1-86a0ea2f26c6/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Ended with exit code 0 [2024-11-27 20:31:13,689 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bb8bd10-436e-4d18-9aa1-86a0ea2f26c6/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-27 20:31:13,689 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:31:13,689 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:31:13,689 INFO L85 PathProgramCache]: Analyzing trace with hash 1871344364, now seen corresponding path program 1 times [2024-11-27 20:31:13,690 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-27 20:31:13,690 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1361312821] [2024-11-27 20:31:13,690 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:31:13,690 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-27 20:31:13,690 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bb8bd10-436e-4d18-9aa1-86a0ea2f26c6/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-27 20:31:13,694 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bb8bd10-436e-4d18-9aa1-86a0ea2f26c6/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-27 20:31:13,695 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bb8bd10-436e-4d18-9aa1-86a0ea2f26c6/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2024-11-27 20:31:13,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:31:13,900 INFO L256 TraceCheckSpWp]: Trace formula consists of 217 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-27 20:31:13,903 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:31:15,232 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 387 proven. 33 refuted. 0 times theorem prover too weak. 340 trivial. 0 not checked. [2024-11-27 20:31:15,232 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:31:15,584 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-27 20:31:15,584 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1361312821] [2024-11-27 20:31:15,584 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1361312821] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:31:15,584 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [921080858] [2024-11-27 20:31:15,584 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:31:15,585 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-27 20:31:15,585 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bb8bd10-436e-4d18-9aa1-86a0ea2f26c6/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 [2024-11-27 20:31:15,598 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bb8bd10-436e-4d18-9aa1-86a0ea2f26c6/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-27 20:31:15,599 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bb8bd10-436e-4d18-9aa1-86a0ea2f26c6/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (9)] Waiting until timeout for monitored process [2024-11-27 20:31:16,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:31:16,355 INFO L256 TraceCheckSpWp]: Trace formula consists of 217 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-27 20:31:16,357 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:31:17,700 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 438 proven. 57 refuted. 0 times theorem prover too weak. 265 trivial. 0 not checked. [2024-11-27 20:31:17,700 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:31:18,153 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [921080858] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:31:18,153 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-27 20:31:18,153 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 10] total 16 [2024-11-27 20:31:18,153 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [431363827] [2024-11-27 20:31:18,153 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-27 20:31:18,154 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-11-27 20:31:18,154 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-27 20:31:18,155 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-11-27 20:31:18,155 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=344, Unknown=0, NotChecked=0, Total=420 [2024-11-27 20:31:18,155 INFO L87 Difference]: Start difference. First operand 174 states and 231 transitions. Second operand has 17 states, 17 states have (on average 4.411764705882353) internal successors, (75), 16 states have internal predecessors, (75), 5 states have call successors, (40), 5 states have call predecessors, (40), 8 states have return successors, (40), 5 states have call predecessors, (40), 5 states have call successors, (40) [2024-11-27 20:31:22,759 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:31:22,759 INFO L93 Difference]: Finished difference Result 265 states and 339 transitions. [2024-11-27 20:31:22,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-11-27 20:31:22,761 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 4.411764705882353) internal successors, (75), 16 states have internal predecessors, (75), 5 states have call successors, (40), 5 states have call predecessors, (40), 8 states have return successors, (40), 5 states have call predecessors, (40), 5 states have call successors, (40) Word has length 131 [2024-11-27 20:31:22,761 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:31:22,762 INFO L225 Difference]: With dead ends: 265 [2024-11-27 20:31:22,762 INFO L226 Difference]: Without dead ends: 142 [2024-11-27 20:31:22,763 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 314 GetRequests, 275 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 347 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=444, Invalid=1196, Unknown=0, NotChecked=0, Total=1640 [2024-11-27 20:31:22,764 INFO L435 NwaCegarLoop]: 83 mSDtfsCounter, 234 mSDsluCounter, 272 mSDsCounter, 0 mSdLazyCounter, 621 mSolverCounterSat, 204 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 234 SdHoareTripleChecker+Valid, 355 SdHoareTripleChecker+Invalid, 825 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 204 IncrementalHoareTripleChecker+Valid, 621 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2024-11-27 20:31:22,764 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [234 Valid, 355 Invalid, 825 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [204 Valid, 621 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2024-11-27 20:31:22,765 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 142 states. [2024-11-27 20:31:22,808 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 142 to 130. [2024-11-27 20:31:22,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 130 states, 79 states have (on average 1.0379746835443038) internal successors, (82), 79 states have internal predecessors, (82), 40 states have call successors, (40), 10 states have call predecessors, (40), 10 states have return successors, (40), 40 states have call predecessors, (40), 40 states have call successors, (40) [2024-11-27 20:31:22,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 130 states and 162 transitions. [2024-11-27 20:31:22,810 INFO L78 Accepts]: Start accepts. Automaton has 130 states and 162 transitions. Word has length 131 [2024-11-27 20:31:22,810 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:31:22,810 INFO L471 AbstractCegarLoop]: Abstraction has 130 states and 162 transitions. [2024-11-27 20:31:22,811 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 4.411764705882353) internal successors, (75), 16 states have internal predecessors, (75), 5 states have call successors, (40), 5 states have call predecessors, (40), 8 states have return successors, (40), 5 states have call predecessors, (40), 5 states have call successors, (40) [2024-11-27 20:31:22,811 INFO L276 IsEmpty]: Start isEmpty. Operand 130 states and 162 transitions. [2024-11-27 20:31:22,816 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2024-11-27 20:31:22,816 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:31:22,817 INFO L218 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:31:22,823 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bb8bd10-436e-4d18-9aa1-86a0ea2f26c6/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2024-11-27 20:31:23,022 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bb8bd10-436e-4d18-9aa1-86a0ea2f26c6/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (9)] Ended with exit code 0 [2024-11-27 20:31:23,217 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bb8bd10-436e-4d18-9aa1-86a0ea2f26c6/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bb8bd10-436e-4d18-9aa1-86a0ea2f26c6/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt [2024-11-27 20:31:23,218 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:31:23,218 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:31:23,218 INFO L85 PathProgramCache]: Analyzing trace with hash -1995455282, now seen corresponding path program 1 times [2024-11-27 20:31:23,219 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-27 20:31:23,219 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1075009537] [2024-11-27 20:31:23,219 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:31:23,219 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-27 20:31:23,219 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bb8bd10-436e-4d18-9aa1-86a0ea2f26c6/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-27 20:31:23,221 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bb8bd10-436e-4d18-9aa1-86a0ea2f26c6/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-27 20:31:23,222 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bb8bd10-436e-4d18-9aa1-86a0ea2f26c6/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2024-11-27 20:31:23,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:31:23,417 INFO L256 TraceCheckSpWp]: Trace formula consists of 218 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-11-27 20:31:23,421 INFO L279 TraceCheckSpWp]: Computing forward predicates...