./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-55.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6497de01 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbccdd8f-8bbf-4c1d-bf96-7d7da1f7e229/bin/uautomizer-verify-LYvppIcaGC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbccdd8f-8bbf-4c1d-bf96-7d7da1f7e229/bin/uautomizer-verify-LYvppIcaGC/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbccdd8f-8bbf-4c1d-bf96-7d7da1f7e229/bin/uautomizer-verify-LYvppIcaGC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbccdd8f-8bbf-4c1d-bf96-7d7da1f7e229/bin/uautomizer-verify-LYvppIcaGC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-55.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbccdd8f-8bbf-4c1d-bf96-7d7da1f7e229/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbccdd8f-8bbf-4c1d-bf96-7d7da1f7e229/bin/uautomizer-verify-LYvppIcaGC --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 3559b3594a82cd675e67391d8043202d21aa0bea5a13d40b68d97450424826dd --- Real Ultimate output --- This is Ultimate 0.3.0-dev-6497de0 [2024-11-23 23:22:45,536 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-23 23:22:45,631 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbccdd8f-8bbf-4c1d-bf96-7d7da1f7e229/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-23 23:22:45,639 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-23 23:22:45,639 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-23 23:22:45,685 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-23 23:22:45,687 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-23 23:22:45,688 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-23 23:22:45,688 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-23 23:22:45,689 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-23 23:22:45,689 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-23 23:22:45,690 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-23 23:22:45,691 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-23 23:22:45,691 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-23 23:22:45,691 INFO L153 SettingsManager]: * Use SBE=true [2024-11-23 23:22:45,691 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-23 23:22:45,691 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-23 23:22:45,691 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-23 23:22:45,691 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-23 23:22:45,692 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-23 23:22:45,692 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-23 23:22:45,692 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-23 23:22:45,692 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-23 23:22:45,692 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-23 23:22:45,692 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-23 23:22:45,692 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-23 23:22:45,692 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-23 23:22:45,692 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-23 23:22:45,692 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-23 23:22:45,694 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-23 23:22:45,694 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-23 23:22:45,694 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-23 23:22:45,695 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 23:22:45,695 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-23 23:22:45,695 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-23 23:22:45,695 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-23 23:22:45,695 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-23 23:22:45,695 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 23:22:45,696 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-23 23:22:45,696 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-23 23:22:45,696 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-23 23:22:45,696 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-23 23:22:45,696 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-23 23:22:45,696 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-23 23:22:45,696 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-23 23:22:45,697 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-23 23:22:45,697 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-23 23:22:45,697 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-23 23:22:45,697 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_cbccdd8f-8bbf-4c1d-bf96-7d7da1f7e229/bin/uautomizer-verify-LYvppIcaGC Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3559b3594a82cd675e67391d8043202d21aa0bea5a13d40b68d97450424826dd [2024-11-23 23:22:46,061 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-23 23:22:46,077 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-23 23:22:46,081 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-23 23:22:46,083 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-23 23:22:46,083 INFO L274 PluginConnector]: CDTParser initialized [2024-11-23 23:22:46,086 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbccdd8f-8bbf-4c1d-bf96-7d7da1f7e229/bin/uautomizer-verify-LYvppIcaGC/../../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-55.i [2024-11-23 23:22:49,378 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbccdd8f-8bbf-4c1d-bf96-7d7da1f7e229/bin/uautomizer-verify-LYvppIcaGC/data/2bf57c47d/9476cc5e88de487ea096a415f3060a4c/FLAG7905a2992 [2024-11-23 23:22:49,693 INFO L384 CDTParser]: Found 1 translation units. [2024-11-23 23:22:49,695 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbccdd8f-8bbf-4c1d-bf96-7d7da1f7e229/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-55.i [2024-11-23 23:22:49,706 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbccdd8f-8bbf-4c1d-bf96-7d7da1f7e229/bin/uautomizer-verify-LYvppIcaGC/data/2bf57c47d/9476cc5e88de487ea096a415f3060a4c/FLAG7905a2992 [2024-11-23 23:22:49,723 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbccdd8f-8bbf-4c1d-bf96-7d7da1f7e229/bin/uautomizer-verify-LYvppIcaGC/data/2bf57c47d/9476cc5e88de487ea096a415f3060a4c [2024-11-23 23:22:49,726 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-23 23:22:49,728 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-23 23:22:49,729 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-23 23:22:49,730 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-23 23:22:49,735 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-23 23:22:49,736 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 11:22:49" (1/1) ... [2024-11-23 23:22:49,737 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@55fc6545 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:22:49, skipping insertion in model container [2024-11-23 23:22:49,738 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 11:22:49" (1/1) ... [2024-11-23 23:22:49,757 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-23 23:22:49,919 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_cbccdd8f-8bbf-4c1d-bf96-7d7da1f7e229/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-55.i[916,929] [2024-11-23 23:22:49,967 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-23 23:22:49,978 INFO L200 MainTranslator]: Completed pre-run [2024-11-23 23:22:49,992 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_cbccdd8f-8bbf-4c1d-bf96-7d7da1f7e229/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-55.i[916,929] [2024-11-23 23:22:50,039 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-23 23:22:50,073 INFO L204 MainTranslator]: Completed translation [2024-11-23 23:22:50,074 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:22:50 WrapperNode [2024-11-23 23:22:50,074 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-23 23:22:50,075 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-23 23:22:50,075 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-23 23:22:50,075 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-23 23:22:50,084 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:22:50" (1/1) ... [2024-11-23 23:22:50,100 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:22:50" (1/1) ... [2024-11-23 23:22:50,154 INFO L138 Inliner]: procedures = 26, calls = 29, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 154 [2024-11-23 23:22:50,159 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-23 23:22:50,159 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-23 23:22:50,159 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-23 23:22:50,160 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-23 23:22:50,172 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:22:50" (1/1) ... [2024-11-23 23:22:50,174 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:22:50" (1/1) ... [2024-11-23 23:22:50,176 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:22:50" (1/1) ... [2024-11-23 23:22:50,203 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]. [2024-11-23 23:22:50,203 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:22:50" (1/1) ... [2024-11-23 23:22:50,204 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:22:50" (1/1) ... [2024-11-23 23:22:50,213 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:22:50" (1/1) ... [2024-11-23 23:22:50,218 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:22:50" (1/1) ... [2024-11-23 23:22:50,226 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:22:50" (1/1) ... [2024-11-23 23:22:50,228 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:22:50" (1/1) ... [2024-11-23 23:22:50,233 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:22:50" (1/1) ... [2024-11-23 23:22:50,236 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-23 23:22:50,237 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-23 23:22:50,237 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-23 23:22:50,237 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-23 23:22:50,238 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:22:50" (1/1) ... [2024-11-23 23:22:50,245 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 23:22:50,265 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbccdd8f-8bbf-4c1d-bf96-7d7da1f7e229/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:22:50,282 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbccdd8f-8bbf-4c1d-bf96-7d7da1f7e229/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-23 23:22:50,289 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbccdd8f-8bbf-4c1d-bf96-7d7da1f7e229/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-23 23:22:50,318 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-23 23:22:50,318 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-23 23:22:50,318 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-23 23:22:50,319 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-23 23:22:50,319 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-23 23:22:50,319 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-23 23:22:50,436 INFO L234 CfgBuilder]: Building ICFG [2024-11-23 23:22:50,439 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-23 23:22:50,910 INFO L? ?]: Removed 24 outVars from TransFormulas that were not future-live. [2024-11-23 23:22:50,910 INFO L283 CfgBuilder]: Performing block encoding [2024-11-23 23:22:50,931 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-23 23:22:50,931 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-23 23:22:50,932 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 11:22:50 BoogieIcfgContainer [2024-11-23 23:22:50,932 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-23 23:22:50,935 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-23 23:22:50,935 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-23 23:22:50,940 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-23 23:22:50,940 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 11:22:49" (1/3) ... [2024-11-23 23:22:50,941 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@254925d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 11:22:50, skipping insertion in model container [2024-11-23 23:22:50,942 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:22:50" (2/3) ... [2024-11-23 23:22:50,942 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@254925d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 11:22:50, skipping insertion in model container [2024-11-23 23:22:50,943 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 11:22:50" (3/3) ... [2024-11-23 23:22:50,944 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_floatingpointinfluence_no-floats_file-55.i [2024-11-23 23:22:50,962 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-23 23:22:50,964 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_floatingpointinfluence_no-floats_file-55.i that has 2 procedures, 66 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-23 23:22:51,042 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-23 23:22:51,057 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;@10496d5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-23 23:22:51,057 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-23 23:22:51,062 INFO L276 IsEmpty]: Start isEmpty. Operand has 66 states, 47 states have (on average 1.3829787234042554) internal successors, (65), 48 states have internal predecessors, (65), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2024-11-23 23:22:51,074 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2024-11-23 23:22:51,075 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:22:51,076 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:22:51,076 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:22:51,083 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:22:51,084 INFO L85 PathProgramCache]: Analyzing trace with hash 518439688, now seen corresponding path program 1 times [2024-11-23 23:22:51,092 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:22:51,092 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [639966765] [2024-11-23 23:22:51,092 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:22:51,093 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:22:51,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:22:51,454 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 450 trivial. 0 not checked. [2024-11-23 23:22:51,455 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:22:51,458 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [639966765] [2024-11-23 23:22:51,459 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [639966765] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 23:22:51,459 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1875078798] [2024-11-23 23:22:51,459 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:22:51,460 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:22:51,460 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbccdd8f-8bbf-4c1d-bf96-7d7da1f7e229/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:22:51,463 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbccdd8f-8bbf-4c1d-bf96-7d7da1f7e229/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 23:22:51,465 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbccdd8f-8bbf-4c1d-bf96-7d7da1f7e229/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-23 23:22:51,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:22:51,656 INFO L256 TraceCheckSpWp]: Trace formula consists of 264 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-23 23:22:51,663 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:22:51,691 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 450 trivial. 0 not checked. [2024-11-23 23:22:51,691 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 23:22:51,691 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1875078798] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:22:51,691 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-23 23:22:51,692 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-23 23:22:51,694 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1559929655] [2024-11-23 23:22:51,695 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:22:51,699 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-23 23:22:51,699 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:22:51,719 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-23 23:22:51,720 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-23 23:22:51,722 INFO L87 Difference]: Start difference. First operand has 66 states, 47 states have (on average 1.3829787234042554) internal successors, (65), 48 states have internal predecessors, (65), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) Second operand has 2 states, 2 states have (on average 15.5) internal successors, (31), 2 states have internal predecessors, (31), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-23 23:22:51,749 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:22:51,750 INFO L93 Difference]: Finished difference Result 125 states and 204 transitions. [2024-11-23 23:22:51,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-23 23:22:51,752 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 15.5) internal successors, (31), 2 states have internal predecessors, (31), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 2 states have call successors, (16) Word has length 106 [2024-11-23 23:22:51,753 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:22:51,759 INFO L225 Difference]: With dead ends: 125 [2024-11-23 23:22:51,760 INFO L226 Difference]: Without dead ends: 62 [2024-11-23 23:22:51,763 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 107 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-23 23:22:51,766 INFO L435 NwaCegarLoop]: 90 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, 90 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 [2024-11-23 23:22:51,767 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 90 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 23:22:51,780 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2024-11-23 23:22:51,801 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 62. [2024-11-23 23:22:51,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62 states, 44 states have (on average 1.3181818181818181) internal successors, (58), 44 states have internal predecessors, (58), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2024-11-23 23:22:51,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 90 transitions. [2024-11-23 23:22:51,810 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 90 transitions. Word has length 106 [2024-11-23 23:22:51,812 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:22:51,812 INFO L471 AbstractCegarLoop]: Abstraction has 62 states and 90 transitions. [2024-11-23 23:22:51,812 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 15.5) internal successors, (31), 2 states have internal predecessors, (31), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-23 23:22:51,813 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 90 transitions. [2024-11-23 23:22:51,816 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2024-11-23 23:22:51,817 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:22:51,817 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:22:51,828 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbccdd8f-8bbf-4c1d-bf96-7d7da1f7e229/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-23 23:22:52,018 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbccdd8f-8bbf-4c1d-bf96-7d7da1f7e229/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-11-23 23:22:52,018 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:22:52,018 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:22:52,019 INFO L85 PathProgramCache]: Analyzing trace with hash 948806408, now seen corresponding path program 1 times [2024-11-23 23:22:52,019 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:22:52,019 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1932811697] [2024-11-23 23:22:52,019 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:22:52,019 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:22:52,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:22:52,233 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-11-23 23:22:52,233 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:22:52,233 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1932811697] [2024-11-23 23:22:52,233 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1932811697] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:22:52,234 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:22:52,234 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 23:22:52,234 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [216301033] [2024-11-23 23:22:52,234 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:22:52,235 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 23:22:52,235 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:22:52,235 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 23:22:52,235 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 23:22:52,236 INFO L87 Difference]: Start difference. First operand 62 states and 90 transitions. Second operand has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-23 23:22:52,289 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:22:52,289 INFO L93 Difference]: Finished difference Result 149 states and 215 transitions. [2024-11-23 23:22:52,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 23:22:52,292 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 106 [2024-11-23 23:22:52,293 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:22:52,295 INFO L225 Difference]: With dead ends: 149 [2024-11-23 23:22:52,295 INFO L226 Difference]: Without dead ends: 90 [2024-11-23 23:22:52,296 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 23:22:52,296 INFO L435 NwaCegarLoop]: 88 mSDtfsCounter, 38 mSDsluCounter, 80 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 168 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-23 23:22:52,297 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 168 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 23:22:52,300 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2024-11-23 23:22:52,314 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 63. [2024-11-23 23:22:52,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63 states, 45 states have (on average 1.3111111111111111) internal successors, (59), 45 states have internal predecessors, (59), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2024-11-23 23:22:52,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 91 transitions. [2024-11-23 23:22:52,316 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 91 transitions. Word has length 106 [2024-11-23 23:22:52,320 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:22:52,320 INFO L471 AbstractCegarLoop]: Abstraction has 63 states and 91 transitions. [2024-11-23 23:22:52,320 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-23 23:22:52,320 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 91 transitions. [2024-11-23 23:22:52,322 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2024-11-23 23:22:52,322 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:22:52,322 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:22:52,322 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-23 23:22:52,322 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:22:52,323 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:22:52,323 INFO L85 PathProgramCache]: Analyzing trace with hash 1206971846, now seen corresponding path program 1 times [2024-11-23 23:22:52,323 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:22:52,323 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1811059626] [2024-11-23 23:22:52,323 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:22:52,323 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:22:52,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:22:52,643 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-11-23 23:22:52,643 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:22:52,643 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1811059626] [2024-11-23 23:22:52,643 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1811059626] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:22:52,643 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:22:52,643 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 23:22:52,644 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [435527903] [2024-11-23 23:22:52,644 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:22:52,644 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 23:22:52,644 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:22:52,645 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 23:22:52,645 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 23:22:52,645 INFO L87 Difference]: Start difference. First operand 63 states and 91 transitions. Second operand has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-23 23:22:52,729 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:22:52,731 INFO L93 Difference]: Finished difference Result 123 states and 179 transitions. [2024-11-23 23:22:52,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 23:22:52,732 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 106 [2024-11-23 23:22:52,732 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:22:52,733 INFO L225 Difference]: With dead ends: 123 [2024-11-23 23:22:52,734 INFO L226 Difference]: Without dead ends: 63 [2024-11-23 23:22:52,734 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 23:22:52,738 INFO L435 NwaCegarLoop]: 88 mSDtfsCounter, 0 mSDsluCounter, 68 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 156 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-23 23:22:52,739 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 156 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-23 23:22:52,740 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2024-11-23 23:22:52,753 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 63. [2024-11-23 23:22:52,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63 states, 45 states have (on average 1.288888888888889) internal successors, (58), 45 states have internal predecessors, (58), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2024-11-23 23:22:52,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 90 transitions. [2024-11-23 23:22:52,761 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 90 transitions. Word has length 106 [2024-11-23 23:22:52,762 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:22:52,762 INFO L471 AbstractCegarLoop]: Abstraction has 63 states and 90 transitions. [2024-11-23 23:22:52,762 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-23 23:22:52,763 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 90 transitions. [2024-11-23 23:22:52,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2024-11-23 23:22:52,767 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:22:52,768 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:22:52,768 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-23 23:22:52,768 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:22:52,769 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:22:52,770 INFO L85 PathProgramCache]: Analyzing trace with hash -2119503871, now seen corresponding path program 1 times [2024-11-23 23:22:52,770 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:22:52,771 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1535744915] [2024-11-23 23:22:52,771 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:22:52,771 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:22:52,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:22:53,671 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-11-23 23:22:53,675 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:22:53,675 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1535744915] [2024-11-23 23:22:53,675 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1535744915] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:22:53,675 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:22:53,675 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-23 23:22:53,675 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [904413463] [2024-11-23 23:22:53,675 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:22:53,676 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-23 23:22:53,676 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:22:53,677 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-23 23:22:53,677 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-23 23:22:53,677 INFO L87 Difference]: Start difference. First operand 63 states and 90 transitions. Second operand has 5 states, 5 states have (on average 6.2) internal successors, (31), 5 states have internal predecessors, (31), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-23 23:22:53,912 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:22:53,914 INFO L93 Difference]: Finished difference Result 150 states and 212 transitions. [2024-11-23 23:22:53,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-23 23:22:53,915 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 5 states have internal predecessors, (31), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 108 [2024-11-23 23:22:53,916 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:22:53,917 INFO L225 Difference]: With dead ends: 150 [2024-11-23 23:22:53,917 INFO L226 Difference]: Without dead ends: 90 [2024-11-23 23:22:53,917 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-23 23:22:53,918 INFO L435 NwaCegarLoop]: 79 mSDtfsCounter, 29 mSDsluCounter, 198 mSDsCounter, 0 mSdLazyCounter, 90 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 277 SdHoareTripleChecker+Invalid, 92 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 90 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-23 23:22:53,924 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 277 Invalid, 92 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 90 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-23 23:22:53,925 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2024-11-23 23:22:53,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 75. [2024-11-23 23:22:53,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75 states, 57 states have (on average 1.2982456140350878) internal successors, (74), 57 states have internal predecessors, (74), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2024-11-23 23:22:53,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 106 transitions. [2024-11-23 23:22:53,939 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 106 transitions. Word has length 108 [2024-11-23 23:22:53,940 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:22:53,940 INFO L471 AbstractCegarLoop]: Abstraction has 75 states and 106 transitions. [2024-11-23 23:22:53,940 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 5 states have internal predecessors, (31), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-23 23:22:53,942 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 106 transitions. [2024-11-23 23:22:53,944 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2024-11-23 23:22:53,944 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:22:53,947 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:22:53,947 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-23 23:22:53,947 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:22:53,948 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:22:53,948 INFO L85 PathProgramCache]: Analyzing trace with hash -934410091, now seen corresponding path program 1 times [2024-11-23 23:22:53,948 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:22:53,948 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [183039040] [2024-11-23 23:22:53,948 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:22:53,948 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:22:53,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:22:54,154 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-11-23 23:22:54,154 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:22:54,154 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [183039040] [2024-11-23 23:22:54,154 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [183039040] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:22:54,154 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:22:54,154 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 23:22:54,155 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1957531492] [2024-11-23 23:22:54,155 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:22:54,155 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 23:22:54,155 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:22:54,156 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 23:22:54,156 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 23:22:54,157 INFO L87 Difference]: Start difference. First operand 75 states and 106 transitions. Second operand has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-23 23:22:54,250 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:22:54,250 INFO L93 Difference]: Finished difference Result 206 states and 295 transitions. [2024-11-23 23:22:54,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 23:22:54,251 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 109 [2024-11-23 23:22:54,253 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:22:54,255 INFO L225 Difference]: With dead ends: 206 [2024-11-23 23:22:54,256 INFO L226 Difference]: Without dead ends: 134 [2024-11-23 23:22:54,256 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 [2024-11-23 23:22:54,257 INFO L435 NwaCegarLoop]: 108 mSDtfsCounter, 49 mSDsluCounter, 68 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 176 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-23 23:22:54,257 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [49 Valid, 176 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-23 23:22:54,262 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 134 states. [2024-11-23 23:22:54,280 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 134 to 131. [2024-11-23 23:22:54,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 131 states, 96 states have (on average 1.2604166666666667) internal successors, (121), 96 states have internal predecessors, (121), 32 states have call successors, (32), 2 states have call predecessors, (32), 2 states have return successors, (32), 32 states have call predecessors, (32), 32 states have call successors, (32) [2024-11-23 23:22:54,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131 states to 131 states and 185 transitions. [2024-11-23 23:22:54,282 INFO L78 Accepts]: Start accepts. Automaton has 131 states and 185 transitions. Word has length 109 [2024-11-23 23:22:54,282 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:22:54,283 INFO L471 AbstractCegarLoop]: Abstraction has 131 states and 185 transitions. [2024-11-23 23:22:54,283 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-23 23:22:54,283 INFO L276 IsEmpty]: Start isEmpty. Operand 131 states and 185 transitions. [2024-11-23 23:22:54,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2024-11-23 23:22:54,285 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:22:54,285 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:22:54,285 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-23 23:22:54,285 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:22:54,285 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:22:54,285 INFO L85 PathProgramCache]: Analyzing trace with hash -1847134472, now seen corresponding path program 1 times [2024-11-23 23:22:54,286 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:22:54,286 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1710930024] [2024-11-23 23:22:54,286 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:22:54,286 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:22:54,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:22:54,503 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-11-23 23:22:54,504 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:22:54,504 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1710930024] [2024-11-23 23:22:54,504 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1710930024] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:22:54,504 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:22:54,504 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-23 23:22:54,504 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [63322005] [2024-11-23 23:22:54,505 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:22:54,505 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-23 23:22:54,505 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:22:54,506 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-23 23:22:54,506 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-23 23:22:54,506 INFO L87 Difference]: Start difference. First operand 131 states and 185 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, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-23 23:22:54,780 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:22:54,780 INFO L93 Difference]: Finished difference Result 376 states and 527 transitions. [2024-11-23 23:22:54,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-23 23:22:54,781 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, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 110 [2024-11-23 23:22:54,782 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:22:54,784 INFO L225 Difference]: With dead ends: 376 [2024-11-23 23:22:54,784 INFO L226 Difference]: Without dead ends: 304 [2024-11-23 23:22:54,785 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-11-23 23:22:54,786 INFO L435 NwaCegarLoop]: 102 mSDtfsCounter, 147 mSDsluCounter, 230 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 147 SdHoareTripleChecker+Valid, 332 SdHoareTripleChecker+Invalid, 105 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-23 23:22:54,786 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [147 Valid, 332 Invalid, 105 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-23 23:22:54,787 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 304 states. [2024-11-23 23:22:54,851 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 304 to 257. [2024-11-23 23:22:54,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 257 states, 188 states have (on average 1.2606382978723405) internal successors, (237), 188 states have internal predecessors, (237), 64 states have call successors, (64), 4 states have call predecessors, (64), 4 states have return successors, (64), 64 states have call predecessors, (64), 64 states have call successors, (64) [2024-11-23 23:22:54,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 257 states to 257 states and 365 transitions. [2024-11-23 23:22:54,858 INFO L78 Accepts]: Start accepts. Automaton has 257 states and 365 transitions. Word has length 110 [2024-11-23 23:22:54,859 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:22:54,859 INFO L471 AbstractCegarLoop]: Abstraction has 257 states and 365 transitions. [2024-11-23 23:22:54,859 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, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-23 23:22:54,859 INFO L276 IsEmpty]: Start isEmpty. Operand 257 states and 365 transitions. [2024-11-23 23:22:54,861 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2024-11-23 23:22:54,861 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:22:54,861 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:22:54,861 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-23 23:22:54,861 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:22:54,862 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:22:54,863 INFO L85 PathProgramCache]: Analyzing trace with hash 1167969146, now seen corresponding path program 1 times [2024-11-23 23:22:54,863 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:22:54,863 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [758149756] [2024-11-23 23:22:54,863 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:22:54,863 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:22:54,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:22:56,504 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-11-23 23:22:56,505 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:22:56,505 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [758149756] [2024-11-23 23:22:56,505 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [758149756] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:22:56,505 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:22:56,505 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-23 23:22:56,505 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1859912521] [2024-11-23 23:22:56,505 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:22:56,506 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-23 23:22:56,506 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:22:56,506 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-23 23:22:56,506 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-11-23 23:22:56,510 INFO L87 Difference]: Start difference. First operand 257 states and 365 transitions. Second operand has 9 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 9 states have internal predecessors, (33), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-23 23:22:57,091 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:22:57,092 INFO L93 Difference]: Finished difference Result 576 states and 804 transitions. [2024-11-23 23:22:57,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-23 23:22:57,093 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 9 states have internal predecessors, (33), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 110 [2024-11-23 23:22:57,093 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:22:57,096 INFO L225 Difference]: With dead ends: 576 [2024-11-23 23:22:57,096 INFO L226 Difference]: Without dead ends: 322 [2024-11-23 23:22:57,097 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210 [2024-11-23 23:22:57,098 INFO L435 NwaCegarLoop]: 144 mSDtfsCounter, 181 mSDsluCounter, 428 mSDsCounter, 0 mSdLazyCounter, 140 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 181 SdHoareTripleChecker+Valid, 572 SdHoareTripleChecker+Invalid, 193 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 140 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-23 23:22:57,098 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [181 Valid, 572 Invalid, 193 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 140 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-23 23:22:57,099 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 322 states. [2024-11-23 23:22:57,139 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 322 to 247. [2024-11-23 23:22:57,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 247 states, 178 states have (on average 1.2303370786516854) internal successors, (219), 178 states have internal predecessors, (219), 64 states have call successors, (64), 4 states have call predecessors, (64), 4 states have return successors, (64), 64 states have call predecessors, (64), 64 states have call successors, (64) [2024-11-23 23:22:57,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 247 states to 247 states and 347 transitions. [2024-11-23 23:22:57,144 INFO L78 Accepts]: Start accepts. Automaton has 247 states and 347 transitions. Word has length 110 [2024-11-23 23:22:57,144 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:22:57,144 INFO L471 AbstractCegarLoop]: Abstraction has 247 states and 347 transitions. [2024-11-23 23:22:57,145 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 9 states have internal predecessors, (33), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-23 23:22:57,145 INFO L276 IsEmpty]: Start isEmpty. Operand 247 states and 347 transitions. [2024-11-23 23:22:57,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-11-23 23:22:57,146 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:22:57,146 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:22:57,146 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-23 23:22:57,147 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:22:57,147 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:22:57,147 INFO L85 PathProgramCache]: Analyzing trace with hash 121451019, now seen corresponding path program 1 times [2024-11-23 23:22:57,147 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:22:57,147 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2136005602] [2024-11-23 23:22:57,147 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:22:57,148 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:22:57,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:22:57,293 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-11-23 23:22:57,293 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:22:57,293 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2136005602] [2024-11-23 23:22:57,293 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2136005602] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:22:57,293 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:22:57,294 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 23:22:57,294 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2123297264] [2024-11-23 23:22:57,294 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:22:57,294 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 23:22:57,294 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:22:57,295 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 23:22:57,295 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 23:22:57,295 INFO L87 Difference]: Start difference. First operand 247 states and 347 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, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-23 23:22:57,365 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:22:57,365 INFO L93 Difference]: Finished difference Result 491 states and 691 transitions. [2024-11-23 23:22:57,365 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 23:22:57,366 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, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 111 [2024-11-23 23:22:57,366 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:22:57,368 INFO L225 Difference]: With dead ends: 491 [2024-11-23 23:22:57,368 INFO L226 Difference]: Without dead ends: 247 [2024-11-23 23:22:57,369 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 [2024-11-23 23:22:57,370 INFO L435 NwaCegarLoop]: 87 mSDtfsCounter, 0 mSDsluCounter, 67 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 154 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-23 23:22:57,370 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 154 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 23:22:57,371 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 247 states. [2024-11-23 23:22:57,403 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 247 to 247. [2024-11-23 23:22:57,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 247 states, 178 states have (on average 1.2078651685393258) internal successors, (215), 178 states have internal predecessors, (215), 64 states have call successors, (64), 4 states have call predecessors, (64), 4 states have return successors, (64), 64 states have call predecessors, (64), 64 states have call successors, (64) [2024-11-23 23:22:57,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 247 states to 247 states and 343 transitions. [2024-11-23 23:22:57,407 INFO L78 Accepts]: Start accepts. Automaton has 247 states and 343 transitions. Word has length 111 [2024-11-23 23:22:57,408 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:22:57,408 INFO L471 AbstractCegarLoop]: Abstraction has 247 states and 343 transitions. [2024-11-23 23:22:57,408 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, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-23 23:22:57,408 INFO L276 IsEmpty]: Start isEmpty. Operand 247 states and 343 transitions. [2024-11-23 23:22:57,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2024-11-23 23:22:57,410 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:22:57,410 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:22:57,411 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-23 23:22:57,415 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:22:57,416 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:22:57,416 INFO L85 PathProgramCache]: Analyzing trace with hash 869755760, now seen corresponding path program 1 times [2024-11-23 23:22:57,416 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:22:57,416 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [776995580] [2024-11-23 23:22:57,416 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:22:57,417 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:22:57,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:22:57,832 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-11-23 23:22:57,833 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:22:57,833 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [776995580] [2024-11-23 23:22:57,833 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [776995580] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:22:57,833 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:22:57,833 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-23 23:22:57,833 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1006335507] [2024-11-23 23:22:57,833 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:22:57,834 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-23 23:22:57,834 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:22:57,834 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-23 23:22:57,834 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-23 23:22:57,839 INFO L87 Difference]: Start difference. First operand 247 states and 343 transitions. Second operand has 7 states, 7 states have (on average 5.142857142857143) internal successors, (36), 7 states have internal predecessors, (36), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-23 23:22:58,206 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:22:58,206 INFO L93 Difference]: Finished difference Result 563 states and 758 transitions. [2024-11-23 23:22:58,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-23 23:22:58,207 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.142857142857143) internal successors, (36), 7 states have internal predecessors, (36), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 113 [2024-11-23 23:22:58,207 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:22:58,213 INFO L225 Difference]: With dead ends: 563 [2024-11-23 23:22:58,213 INFO L226 Difference]: Without dead ends: 423 [2024-11-23 23:22:58,214 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-11-23 23:22:58,215 INFO L435 NwaCegarLoop]: 78 mSDtfsCounter, 151 mSDsluCounter, 288 mSDsCounter, 0 mSdLazyCounter, 103 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 151 SdHoareTripleChecker+Valid, 366 SdHoareTripleChecker+Invalid, 160 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 103 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-23 23:22:58,216 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [151 Valid, 366 Invalid, 160 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 103 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-23 23:22:58,217 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 423 states. [2024-11-23 23:22:58,289 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 423 to 299. [2024-11-23 23:22:58,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 299 states, 213 states have (on average 1.1971830985915493) internal successors, (255), 213 states have internal predecessors, (255), 80 states have call successors, (80), 5 states have call predecessors, (80), 5 states have return successors, (80), 80 states have call predecessors, (80), 80 states have call successors, (80) [2024-11-23 23:22:58,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 299 states to 299 states and 415 transitions. [2024-11-23 23:22:58,296 INFO L78 Accepts]: Start accepts. Automaton has 299 states and 415 transitions. Word has length 113 [2024-11-23 23:22:58,297 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:22:58,297 INFO L471 AbstractCegarLoop]: Abstraction has 299 states and 415 transitions. [2024-11-23 23:22:58,299 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.142857142857143) internal successors, (36), 7 states have internal predecessors, (36), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-23 23:22:58,299 INFO L276 IsEmpty]: Start isEmpty. Operand 299 states and 415 transitions. [2024-11-23 23:22:58,300 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2024-11-23 23:22:58,302 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:22:58,302 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:22:58,302 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-23 23:22:58,302 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:22:58,303 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:22:58,303 INFO L85 PathProgramCache]: Analyzing trace with hash -138710604, now seen corresponding path program 1 times [2024-11-23 23:22:58,303 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:22:58,303 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [9478501] [2024-11-23 23:22:58,303 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:22:58,304 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:22:58,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:22:58,398 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-11-23 23:22:58,398 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:22:58,398 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [9478501] [2024-11-23 23:22:58,398 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [9478501] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:22:58,398 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:22:58,398 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 23:22:58,399 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [702119293] [2024-11-23 23:22:58,399 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:22:58,399 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 23:22:58,399 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:22:58,400 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 23:22:58,400 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 23:22:58,400 INFO L87 Difference]: Start difference. First operand 299 states and 415 transitions. Second operand has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-23 23:22:58,504 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:22:58,504 INFO L93 Difference]: Finished difference Result 545 states and 768 transitions. [2024-11-23 23:22:58,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 23:22:58,504 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 115 [2024-11-23 23:22:58,505 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:22:58,510 INFO L225 Difference]: With dead ends: 545 [2024-11-23 23:22:58,510 INFO L226 Difference]: Without dead ends: 411 [2024-11-23 23:22:58,511 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 23:22:58,512 INFO L435 NwaCegarLoop]: 93 mSDtfsCounter, 69 mSDsluCounter, 64 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 157 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-23 23:22:58,512 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [69 Valid, 157 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-23 23:22:58,516 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 411 states. [2024-11-23 23:22:58,579 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 411 to 277. [2024-11-23 23:22:58,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 277 states, 191 states have (on average 1.2094240837696335) internal successors, (231), 191 states have internal predecessors, (231), 80 states have call successors, (80), 5 states have call predecessors, (80), 5 states have return successors, (80), 80 states have call predecessors, (80), 80 states have call successors, (80) [2024-11-23 23:22:58,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 277 states to 277 states and 391 transitions. [2024-11-23 23:22:58,585 INFO L78 Accepts]: Start accepts. Automaton has 277 states and 391 transitions. Word has length 115 [2024-11-23 23:22:58,586 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:22:58,587 INFO L471 AbstractCegarLoop]: Abstraction has 277 states and 391 transitions. [2024-11-23 23:22:58,587 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-23 23:22:58,587 INFO L276 IsEmpty]: Start isEmpty. Operand 277 states and 391 transitions. [2024-11-23 23:22:58,590 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2024-11-23 23:22:58,590 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:22:58,590 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:22:58,590 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-23 23:22:58,590 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:22:58,591 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:22:58,591 INFO L85 PathProgramCache]: Analyzing trace with hash -1695558761, now seen corresponding path program 1 times [2024-11-23 23:22:58,591 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:22:58,591 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1255746538] [2024-11-23 23:22:58,591 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:22:58,591 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:22:58,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:22:59,138 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-11-23 23:22:59,139 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:22:59,139 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1255746538] [2024-11-23 23:22:59,139 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1255746538] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:22:59,139 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:22:59,139 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-23 23:22:59,139 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [877541621] [2024-11-23 23:22:59,139 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:22:59,140 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-23 23:22:59,140 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:22:59,141 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-23 23:22:59,141 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-23 23:22:59,141 INFO L87 Difference]: Start difference. First operand 277 states and 391 transitions. Second operand has 5 states, 5 states have (on average 7.6) internal successors, (38), 5 states have internal predecessors, (38), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-23 23:22:59,533 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:22:59,533 INFO L93 Difference]: Finished difference Result 603 states and 823 transitions. [2024-11-23 23:22:59,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-23 23:22:59,534 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 5 states have internal predecessors, (38), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 115 [2024-11-23 23:22:59,535 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:22:59,537 INFO L225 Difference]: With dead ends: 603 [2024-11-23 23:22:59,538 INFO L226 Difference]: Without dead ends: 361 [2024-11-23 23:22:59,539 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-11-23 23:22:59,539 INFO L435 NwaCegarLoop]: 102 mSDtfsCounter, 83 mSDsluCounter, 207 mSDsCounter, 0 mSdLazyCounter, 96 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 83 SdHoareTripleChecker+Valid, 309 SdHoareTripleChecker+Invalid, 145 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 96 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-23 23:22:59,540 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [83 Valid, 309 Invalid, 145 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 96 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-23 23:22:59,541 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 361 states. [2024-11-23 23:22:59,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 361 to 279. [2024-11-23 23:22:59,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 279 states, 193 states have (on average 1.2124352331606219) internal successors, (234), 193 states have internal predecessors, (234), 80 states have call successors, (80), 5 states have call predecessors, (80), 5 states have return successors, (80), 80 states have call predecessors, (80), 80 states have call successors, (80) [2024-11-23 23:22:59,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 279 states to 279 states and 394 transitions. [2024-11-23 23:22:59,596 INFO L78 Accepts]: Start accepts. Automaton has 279 states and 394 transitions. Word has length 115 [2024-11-23 23:22:59,596 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:22:59,596 INFO L471 AbstractCegarLoop]: Abstraction has 279 states and 394 transitions. [2024-11-23 23:22:59,596 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 5 states have internal predecessors, (38), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-23 23:22:59,596 INFO L276 IsEmpty]: Start isEmpty. Operand 279 states and 394 transitions. [2024-11-23 23:22:59,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2024-11-23 23:22:59,604 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:22:59,604 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:22:59,605 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-23 23:22:59,605 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:22:59,605 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:22:59,605 INFO L85 PathProgramCache]: Analyzing trace with hash 259368120, now seen corresponding path program 1 times [2024-11-23 23:22:59,605 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:22:59,606 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2026327215] [2024-11-23 23:22:59,606 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:22:59,606 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:22:59,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:23:01,871 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 36 proven. 9 refuted. 0 times theorem prover too weak. 435 trivial. 0 not checked. [2024-11-23 23:23:01,872 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:23:01,872 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2026327215] [2024-11-23 23:23:01,872 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2026327215] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 23:23:01,872 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2128468907] [2024-11-23 23:23:01,872 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:23:01,872 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:23:01,872 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbccdd8f-8bbf-4c1d-bf96-7d7da1f7e229/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:23:01,875 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbccdd8f-8bbf-4c1d-bf96-7d7da1f7e229/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 23:23:01,879 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbccdd8f-8bbf-4c1d-bf96-7d7da1f7e229/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-23 23:23:02,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:23:02,113 INFO L256 TraceCheckSpWp]: Trace formula consists of 271 conjuncts, 31 conjuncts are in the unsatisfiable core [2024-11-23 23:23:02,121 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:23:03,070 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 171 proven. 51 refuted. 0 times theorem prover too weak. 258 trivial. 0 not checked. [2024-11-23 23:23:03,070 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 23:23:04,734 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 36 proven. 9 refuted. 0 times theorem prover too weak. 435 trivial. 0 not checked. [2024-11-23 23:23:04,735 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2128468907] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-23 23:23:04,735 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-23 23:23:04,735 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 25 [2024-11-23 23:23:04,735 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1400294456] [2024-11-23 23:23:04,735 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-23 23:23:04,736 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2024-11-23 23:23:04,736 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:23:04,736 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2024-11-23 23:23:04,738 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=117, Invalid=483, Unknown=0, NotChecked=0, Total=600 [2024-11-23 23:23:04,739 INFO L87 Difference]: Start difference. First operand 279 states and 394 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 3 states have call successors, (22), 2 states have call predecessors, (22), 4 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) [2024-11-23 23:23:06,778 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:23:06,778 INFO L93 Difference]: Finished difference Result 403 states and 519 transitions. [2024-11-23 23:23:06,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2024-11-23 23:23:06,779 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 3 states have call successors, (22), 2 states have call predecessors, (22), 4 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) Word has length 117 [2024-11-23 23:23:06,779 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:23:06,783 INFO L225 Difference]: With dead ends: 403 [2024-11-23 23:23:06,783 INFO L226 Difference]: Without dead ends: 401 [2024-11-23 23:23:06,785 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 269 GetRequests, 223 SyntacticMatches, 1 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 459 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=492, Invalid=1670, Unknown=0, NotChecked=0, Total=2162 [2024-11-23 23:23:06,786 INFO L435 NwaCegarLoop]: 67 mSDtfsCounter, 367 mSDsluCounter, 543 mSDsCounter, 0 mSdLazyCounter, 630 mSolverCounterSat, 137 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 391 SdHoareTripleChecker+Valid, 610 SdHoareTripleChecker+Invalid, 767 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 137 IncrementalHoareTripleChecker+Valid, 630 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-23 23:23:06,786 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [391 Valid, 610 Invalid, 767 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [137 Valid, 630 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-23 23:23:06,788 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 401 states. [2024-11-23 23:23:06,853 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 401 to 341. [2024-11-23 23:23:06,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 341 states, 246 states have (on average 1.1829268292682926) internal successors, (291), 246 states have internal predecessors, (291), 80 states have call successors, (80), 14 states have call predecessors, (80), 14 states have return successors, (80), 80 states have call predecessors, (80), 80 states have call successors, (80) [2024-11-23 23:23:06,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 341 states to 341 states and 451 transitions. [2024-11-23 23:23:06,859 INFO L78 Accepts]: Start accepts. Automaton has 341 states and 451 transitions. Word has length 117 [2024-11-23 23:23:06,860 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:23:06,860 INFO L471 AbstractCegarLoop]: Abstraction has 341 states and 451 transitions. [2024-11-23 23:23:06,860 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 3 states have call successors, (22), 2 states have call predecessors, (22), 4 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) [2024-11-23 23:23:06,860 INFO L276 IsEmpty]: Start isEmpty. Operand 341 states and 451 transitions. [2024-11-23 23:23:06,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2024-11-23 23:23:06,862 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:23:06,862 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:23:06,873 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbccdd8f-8bbf-4c1d-bf96-7d7da1f7e229/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-23 23:23:07,066 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbccdd8f-8bbf-4c1d-bf96-7d7da1f7e229/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2024-11-23 23:23:07,067 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:23:07,067 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:23:07,068 INFO L85 PathProgramCache]: Analyzing trace with hash -852044625, now seen corresponding path program 1 times [2024-11-23 23:23:07,068 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:23:07,068 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1746753133] [2024-11-23 23:23:07,068 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:23:07,068 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:23:07,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:23:07,369 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 36 proven. 9 refuted. 0 times theorem prover too weak. 435 trivial. 0 not checked. [2024-11-23 23:23:07,369 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:23:07,369 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1746753133] [2024-11-23 23:23:07,369 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1746753133] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 23:23:07,369 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1047165283] [2024-11-23 23:23:07,370 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:23:07,370 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:23:07,370 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbccdd8f-8bbf-4c1d-bf96-7d7da1f7e229/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:23:07,372 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbccdd8f-8bbf-4c1d-bf96-7d7da1f7e229/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 23:23:07,375 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbccdd8f-8bbf-4c1d-bf96-7d7da1f7e229/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-23 23:23:07,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:23:07,482 INFO L256 TraceCheckSpWp]: Trace formula consists of 272 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-23 23:23:07,490 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:23:07,672 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 183 proven. 9 refuted. 0 times theorem prover too weak. 288 trivial. 0 not checked. [2024-11-23 23:23:07,672 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 23:23:07,946 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 36 proven. 9 refuted. 0 times theorem prover too weak. 435 trivial. 0 not checked. [2024-11-23 23:23:07,948 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1047165283] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-23 23:23:07,948 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-23 23:23:07,948 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 14 [2024-11-23 23:23:07,948 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [48489795] [2024-11-23 23:23:07,949 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-23 23:23:07,949 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-23 23:23:07,951 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:23:07,952 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-23 23:23:07,952 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=129, Unknown=0, NotChecked=0, Total=182 [2024-11-23 23:23:07,953 INFO L87 Difference]: Start difference. First operand 341 states and 451 transitions. Second operand has 14 states, 14 states have (on average 5.214285714285714) internal successors, (73), 14 states have internal predecessors, (73), 3 states have call successors, (22), 2 states have call predecessors, (22), 4 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) [2024-11-23 23:23:08,563 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:23:08,563 INFO L93 Difference]: Finished difference Result 552 states and 713 transitions. [2024-11-23 23:23:08,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-23 23:23:08,564 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 5.214285714285714) internal successors, (73), 14 states have internal predecessors, (73), 3 states have call successors, (22), 2 states have call predecessors, (22), 4 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) Word has length 118 [2024-11-23 23:23:08,565 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:23:08,567 INFO L225 Difference]: With dead ends: 552 [2024-11-23 23:23:08,568 INFO L226 Difference]: Without dead ends: 378 [2024-11-23 23:23:08,569 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 248 GetRequests, 229 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=133, Invalid=287, Unknown=0, NotChecked=0, Total=420 [2024-11-23 23:23:08,569 INFO L435 NwaCegarLoop]: 60 mSDtfsCounter, 260 mSDsluCounter, 193 mSDsCounter, 0 mSdLazyCounter, 275 mSolverCounterSat, 135 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 284 SdHoareTripleChecker+Valid, 253 SdHoareTripleChecker+Invalid, 410 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 135 IncrementalHoareTripleChecker+Valid, 275 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-23 23:23:08,570 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [284 Valid, 253 Invalid, 410 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [135 Valid, 275 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-23 23:23:08,571 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 378 states. [2024-11-23 23:23:08,632 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 378 to 353. [2024-11-23 23:23:08,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 353 states, 255 states have (on average 1.1529411764705881) internal successors, (294), 255 states have internal predecessors, (294), 80 states have call successors, (80), 17 states have call predecessors, (80), 17 states have return successors, (80), 80 states have call predecessors, (80), 80 states have call successors, (80) [2024-11-23 23:23:08,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 353 states to 353 states and 454 transitions. [2024-11-23 23:23:08,638 INFO L78 Accepts]: Start accepts. Automaton has 353 states and 454 transitions. Word has length 118 [2024-11-23 23:23:08,638 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:23:08,638 INFO L471 AbstractCegarLoop]: Abstraction has 353 states and 454 transitions. [2024-11-23 23:23:08,638 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 5.214285714285714) internal successors, (73), 14 states have internal predecessors, (73), 3 states have call successors, (22), 2 states have call predecessors, (22), 4 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) [2024-11-23 23:23:08,639 INFO L276 IsEmpty]: Start isEmpty. Operand 353 states and 454 transitions. [2024-11-23 23:23:08,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2024-11-23 23:23:08,640 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:23:08,640 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:23:08,652 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbccdd8f-8bbf-4c1d-bf96-7d7da1f7e229/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-23 23:23:08,845 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbccdd8f-8bbf-4c1d-bf96-7d7da1f7e229/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2024-11-23 23:23:08,845 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:23:08,846 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:23:08,846 INFO L85 PathProgramCache]: Analyzing trace with hash -1863161875, now seen corresponding path program 1 times [2024-11-23 23:23:08,846 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:23:08,846 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1682781802] [2024-11-23 23:23:08,846 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:23:08,847 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:23:08,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-23 23:23:08,893 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-23 23:23:08,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-23 23:23:09,000 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-23 23:23:09,001 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-11-23 23:23:09,002 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-23 23:23:09,004 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-23 23:23:09,008 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:23:09,104 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-23 23:23:09,108 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 11:23:09 BoogieIcfgContainer [2024-11-23 23:23:09,108 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-23 23:23:09,109 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-23 23:23:09,109 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-23 23:23:09,109 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-23 23:23:09,110 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 11:22:50" (3/4) ... [2024-11-23 23:23:09,112 INFO L149 WitnessPrinter]: No result that supports witness generation found [2024-11-23 23:23:09,113 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-23 23:23:09,114 INFO L158 Benchmark]: Toolchain (without parser) took 19386.50ms. Allocated memory was 117.4MB in the beginning and 218.1MB in the end (delta: 100.7MB). Free memory was 92.4MB in the beginning and 156.4MB in the end (delta: -64.0MB). Peak memory consumption was 34.0MB. Max. memory is 16.1GB. [2024-11-23 23:23:09,114 INFO L158 Benchmark]: CDTParser took 0.52ms. Allocated memory is still 117.4MB. Free memory is still 73.5MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-23 23:23:09,115 INFO L158 Benchmark]: CACSL2BoogieTranslator took 345.25ms. Allocated memory is still 117.4MB. Free memory was 92.4MB in the beginning and 79.4MB in the end (delta: 13.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-23 23:23:09,115 INFO L158 Benchmark]: Boogie Procedure Inliner took 83.72ms. Allocated memory is still 117.4MB. Free memory was 79.4MB in the beginning and 76.9MB in the end (delta: 2.6MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-23 23:23:09,116 INFO L158 Benchmark]: Boogie Preprocessor took 76.68ms. Allocated memory is still 117.4MB. Free memory was 76.9MB in the beginning and 74.1MB in the end (delta: 2.8MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-23 23:23:09,116 INFO L158 Benchmark]: RCFGBuilder took 696.14ms. Allocated memory is still 117.4MB. Free memory was 74.1MB in the beginning and 56.4MB in the end (delta: 17.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-23 23:23:09,116 INFO L158 Benchmark]: TraceAbstraction took 18172.90ms. Allocated memory was 117.4MB in the beginning and 218.1MB in the end (delta: 100.7MB). Free memory was 55.8MB in the beginning and 156.5MB in the end (delta: -100.6MB). Peak memory consumption was 8.8MB. Max. memory is 16.1GB. [2024-11-23 23:23:09,117 INFO L158 Benchmark]: Witness Printer took 4.61ms. Allocated memory is still 218.1MB. Free memory was 156.5MB in the beginning and 156.4MB in the end (delta: 42.2kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-23 23:23:09,118 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.52ms. Allocated memory is still 117.4MB. Free memory is still 73.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 345.25ms. Allocated memory is still 117.4MB. Free memory was 92.4MB in the beginning and 79.4MB in the end (delta: 13.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 83.72ms. Allocated memory is still 117.4MB. Free memory was 79.4MB in the beginning and 76.9MB in the end (delta: 2.6MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 76.68ms. Allocated memory is still 117.4MB. Free memory was 76.9MB in the beginning and 74.1MB in the end (delta: 2.8MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 696.14ms. Allocated memory is still 117.4MB. Free memory was 74.1MB in the beginning and 56.4MB in the end (delta: 17.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 18172.90ms. Allocated memory was 117.4MB in the beginning and 218.1MB in the end (delta: 100.7MB). Free memory was 55.8MB in the beginning and 156.5MB in the end (delta: -100.6MB). Peak memory consumption was 8.8MB. Max. memory is 16.1GB. * Witness Printer took 4.61ms. Allocated memory is still 218.1MB. Free memory was 156.5MB in the beginning and 156.4MB in the end (delta: 42.2kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 19]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of shiftRight at line 60, overapproximation of shiftRight at line 101, overapproximation of shiftRight at line 60, overapproximation of shiftRight at line 101. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] unsigned short int var_1_1 = 10; [L23] unsigned char var_1_2 = 0; [L24] unsigned char var_1_5 = 0; [L25] signed long int var_1_7 = 256; [L26] signed long int var_1_8 = 63; [L27] signed long int var_1_9 = 1; [L28] signed long int var_1_10 = 0; [L29] signed long int var_1_11 = 16; [L30] signed long int var_1_12 = -5; [L31] unsigned char var_1_14 = 128; [L32] signed long int var_1_15 = 4; [L33] unsigned long int var_1_16 = 500; [L34] unsigned char var_1_17 = 2; [L35] unsigned char var_1_18 = 100; [L36] signed long int last_1_var_1_12 = -5; [L37] unsigned char last_1_var_1_17 = 2; VAL [isInitial=0, last_1_var_1_12=-5, last_1_var_1_17=2, var_1_10=0, var_1_11=16, var_1_12=-5, var_1_14=128, var_1_15=4, var_1_16=500, var_1_17=2, var_1_18=100, var_1_1=10, var_1_2=0, var_1_5=0, var_1_7=256, var_1_8=63, var_1_9=1] [L105] isInitial = 1 [L106] FCALL initially() [L108] CALL updateLastVariables() [L97] last_1_var_1_12 = var_1_12 [L98] last_1_var_1_17 = var_1_17 VAL [isInitial=1, last_1_var_1_12=-5, last_1_var_1_17=2, var_1_10=0, var_1_11=16, var_1_12=-5, var_1_14=128, var_1_15=4, var_1_16=500, var_1_17=2, var_1_18=100, var_1_1=10, var_1_2=0, var_1_5=0, var_1_7=256, var_1_8=63, var_1_9=1] [L108] RET updateLastVariables() [L109] CALL updateVariables() [L71] var_1_2 = __VERIFIER_nondet_uchar() [L72] CALL assume_abort_if_not(var_1_2 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=-5, last_1_var_1_17=2, var_1_10=0, var_1_11=16, var_1_12=-5, var_1_14=128, var_1_15=4, var_1_16=500, var_1_17=2, var_1_18=100, var_1_1=10, var_1_5=0, var_1_7=256, var_1_8=63, var_1_9=1] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=-5, last_1_var_1_17=2, var_1_10=0, var_1_11=16, var_1_12=-5, var_1_14=128, var_1_15=4, var_1_16=500, var_1_17=2, var_1_18=100, var_1_1=10, var_1_5=0, var_1_7=256, var_1_8=63, var_1_9=1] [L72] RET assume_abort_if_not(var_1_2 >= 0) VAL [isInitial=1, last_1_var_1_12=-5, last_1_var_1_17=2, var_1_10=0, var_1_11=16, var_1_12=-5, var_1_14=128, var_1_15=4, var_1_16=500, var_1_17=2, var_1_18=100, var_1_1=10, var_1_5=0, var_1_7=256, var_1_8=63, var_1_9=1] [L73] CALL assume_abort_if_not(var_1_2 <= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=-5, last_1_var_1_17=2, var_1_10=0, var_1_11=16, var_1_12=-5, var_1_14=128, var_1_15=4, var_1_16=500, var_1_17=2, var_1_18=100, var_1_1=10, var_1_2=0, var_1_5=0, var_1_7=256, var_1_8=63, var_1_9=1] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=-5, last_1_var_1_17=2, var_1_10=0, var_1_11=16, var_1_12=-5, var_1_14=128, var_1_15=4, var_1_16=500, var_1_17=2, var_1_18=100, var_1_1=10, var_1_2=0, var_1_5=0, var_1_7=256, var_1_8=63, var_1_9=1] [L73] RET assume_abort_if_not(var_1_2 <= 1) VAL [isInitial=1, last_1_var_1_12=-5, last_1_var_1_17=2, var_1_10=0, var_1_11=16, var_1_12=-5, var_1_14=128, var_1_15=4, var_1_16=500, var_1_17=2, var_1_18=100, var_1_1=10, var_1_2=0, var_1_5=0, var_1_7=256, var_1_8=63, var_1_9=1] [L74] var_1_5 = __VERIFIER_nondet_uchar() [L75] CALL assume_abort_if_not(var_1_5 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=-5, last_1_var_1_17=2, var_1_10=0, var_1_11=16, var_1_12=-5, var_1_14=128, var_1_15=4, var_1_16=500, var_1_17=2, var_1_18=100, var_1_1=10, var_1_2=0, var_1_7=256, var_1_8=63, var_1_9=1] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=-5, last_1_var_1_17=2, var_1_10=0, var_1_11=16, var_1_12=-5, var_1_14=128, var_1_15=4, var_1_16=500, var_1_17=2, var_1_18=100, var_1_1=10, var_1_2=0, var_1_7=256, var_1_8=63, var_1_9=1] [L75] RET assume_abort_if_not(var_1_5 >= 0) VAL [isInitial=1, last_1_var_1_12=-5, last_1_var_1_17=2, var_1_10=0, var_1_11=16, var_1_12=-5, var_1_14=128, var_1_15=4, var_1_16=500, var_1_17=2, var_1_18=100, var_1_1=10, var_1_2=0, var_1_7=256, var_1_8=63, var_1_9=1] [L76] CALL assume_abort_if_not(var_1_5 <= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=-5, last_1_var_1_17=2, var_1_10=0, var_1_11=16, var_1_12=-5, var_1_14=128, var_1_15=4, var_1_16=500, var_1_17=2, var_1_18=100, var_1_1=10, var_1_2=0, var_1_5=1, var_1_7=256, var_1_8=63, var_1_9=1] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=-5, last_1_var_1_17=2, var_1_10=0, var_1_11=16, var_1_12=-5, var_1_14=128, var_1_15=4, var_1_16=500, var_1_17=2, var_1_18=100, var_1_1=10, var_1_2=0, var_1_5=1, var_1_7=256, var_1_8=63, var_1_9=1] [L76] RET assume_abort_if_not(var_1_5 <= 1) VAL [isInitial=1, last_1_var_1_12=-5, last_1_var_1_17=2, var_1_10=0, var_1_11=16, var_1_12=-5, var_1_14=128, var_1_15=4, var_1_16=500, var_1_17=2, var_1_18=100, var_1_1=10, var_1_2=0, var_1_5=1, var_1_7=256, var_1_8=63, var_1_9=1] [L77] var_1_8 = __VERIFIER_nondet_long() [L78] CALL assume_abort_if_not(var_1_8 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=-5, last_1_var_1_17=2, var_1_10=0, var_1_11=16, var_1_12=-5, var_1_14=128, var_1_15=4, var_1_16=500, var_1_17=2, var_1_18=100, var_1_1=10, var_1_2=0, var_1_5=1, var_1_7=256, var_1_8=0, var_1_9=1] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=-5, last_1_var_1_17=2, var_1_10=0, var_1_11=16, var_1_12=-5, var_1_14=128, var_1_15=4, var_1_16=500, var_1_17=2, var_1_18=100, var_1_1=10, var_1_2=0, var_1_5=1, var_1_7=256, var_1_8=0, var_1_9=1] [L78] RET assume_abort_if_not(var_1_8 >= 0) VAL [isInitial=1, last_1_var_1_12=-5, last_1_var_1_17=2, var_1_10=0, var_1_11=16, var_1_12=-5, var_1_14=128, var_1_15=4, var_1_16=500, var_1_17=2, var_1_18=100, var_1_1=10, var_1_2=0, var_1_5=1, var_1_7=256, var_1_8=0, var_1_9=1] [L79] CALL assume_abort_if_not(var_1_8 <= 2147483647) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=-5, last_1_var_1_17=2, var_1_10=0, var_1_11=16, var_1_12=-5, var_1_14=128, var_1_15=4, var_1_16=500, var_1_17=2, var_1_18=100, var_1_1=10, var_1_2=0, var_1_5=1, var_1_7=256, var_1_8=0, var_1_9=1] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=-5, last_1_var_1_17=2, var_1_10=0, var_1_11=16, var_1_12=-5, var_1_14=128, var_1_15=4, var_1_16=500, var_1_17=2, var_1_18=100, var_1_1=10, var_1_2=0, var_1_5=1, var_1_7=256, var_1_8=0, var_1_9=1] [L79] RET assume_abort_if_not(var_1_8 <= 2147483647) VAL [isInitial=1, last_1_var_1_12=-5, last_1_var_1_17=2, var_1_10=0, var_1_11=16, var_1_12=-5, var_1_14=128, var_1_15=4, var_1_16=500, var_1_17=2, var_1_18=100, var_1_1=10, var_1_2=0, var_1_5=1, var_1_7=256, var_1_8=0, var_1_9=1] [L80] var_1_9 = __VERIFIER_nondet_long() [L81] CALL assume_abort_if_not(var_1_9 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=-5, last_1_var_1_17=2, var_1_10=0, var_1_11=16, var_1_12=-5, var_1_14=128, var_1_15=4, var_1_16=500, var_1_17=2, var_1_18=100, var_1_1=10, var_1_2=0, var_1_5=1, var_1_7=256, var_1_8=0, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=-5, last_1_var_1_17=2, var_1_10=0, var_1_11=16, var_1_12=-5, var_1_14=128, var_1_15=4, var_1_16=500, var_1_17=2, var_1_18=100, var_1_1=10, var_1_2=0, var_1_5=1, var_1_7=256, var_1_8=0, var_1_9=0] [L81] RET assume_abort_if_not(var_1_9 >= 0) VAL [isInitial=1, last_1_var_1_12=-5, last_1_var_1_17=2, var_1_10=0, var_1_11=16, var_1_12=-5, var_1_14=128, var_1_15=4, var_1_16=500, var_1_17=2, var_1_18=100, var_1_1=10, var_1_2=0, var_1_5=1, var_1_7=256, var_1_8=0, var_1_9=0] [L82] CALL assume_abort_if_not(var_1_9 <= 2147483647) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=-5, last_1_var_1_17=2, var_1_10=0, var_1_11=16, var_1_12=-5, var_1_14=128, var_1_15=4, var_1_16=500, var_1_17=2, var_1_18=100, var_1_1=10, var_1_2=0, var_1_5=1, var_1_7=256, var_1_8=0, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=-5, last_1_var_1_17=2, var_1_10=0, var_1_11=16, var_1_12=-5, var_1_14=128, var_1_15=4, var_1_16=500, var_1_17=2, var_1_18=100, var_1_1=10, var_1_2=0, var_1_5=1, var_1_7=256, var_1_8=0, var_1_9=0] [L82] RET assume_abort_if_not(var_1_9 <= 2147483647) VAL [isInitial=1, last_1_var_1_12=-5, last_1_var_1_17=2, var_1_10=0, var_1_11=16, var_1_12=-5, var_1_14=128, var_1_15=4, var_1_16=500, var_1_17=2, var_1_18=100, var_1_1=10, var_1_2=0, var_1_5=1, var_1_7=256, var_1_8=0, var_1_9=0] [L83] var_1_10 = __VERIFIER_nondet_long() [L84] CALL assume_abort_if_not(var_1_10 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=-5, last_1_var_1_17=2, var_1_10=0, var_1_11=16, var_1_12=-5, var_1_14=128, var_1_15=4, var_1_16=500, var_1_17=2, var_1_18=100, var_1_1=10, var_1_2=0, var_1_5=1, var_1_7=256, var_1_8=0, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=-5, last_1_var_1_17=2, var_1_10=0, var_1_11=16, var_1_12=-5, var_1_14=128, var_1_15=4, var_1_16=500, var_1_17=2, var_1_18=100, var_1_1=10, var_1_2=0, var_1_5=1, var_1_7=256, var_1_8=0, var_1_9=0] [L84] RET assume_abort_if_not(var_1_10 >= 0) VAL [isInitial=1, last_1_var_1_12=-5, last_1_var_1_17=2, var_1_10=0, var_1_11=16, var_1_12=-5, var_1_14=128, var_1_15=4, var_1_16=500, var_1_17=2, var_1_18=100, var_1_1=10, var_1_2=0, var_1_5=1, var_1_7=256, var_1_8=0, var_1_9=0] [L85] CALL assume_abort_if_not(var_1_10 <= 2147483647) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=-5, last_1_var_1_17=2, var_1_10=0, var_1_11=16, var_1_12=-5, var_1_14=128, var_1_15=4, var_1_16=500, var_1_17=2, var_1_18=100, var_1_1=10, var_1_2=0, var_1_5=1, var_1_7=256, var_1_8=0, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=-5, last_1_var_1_17=2, var_1_10=0, var_1_11=16, var_1_12=-5, var_1_14=128, var_1_15=4, var_1_16=500, var_1_17=2, var_1_18=100, var_1_1=10, var_1_2=0, var_1_5=1, var_1_7=256, var_1_8=0, var_1_9=0] [L85] RET assume_abort_if_not(var_1_10 <= 2147483647) VAL [isInitial=1, last_1_var_1_12=-5, last_1_var_1_17=2, var_1_10=0, var_1_11=16, var_1_12=-5, var_1_14=128, var_1_15=4, var_1_16=500, var_1_17=2, var_1_18=100, var_1_1=10, var_1_2=0, var_1_5=1, var_1_7=256, var_1_8=0, var_1_9=0] [L86] var_1_11 = __VERIFIER_nondet_long() [L87] CALL assume_abort_if_not(var_1_11 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=-5, last_1_var_1_17=2, var_1_10=0, var_1_11=0, var_1_12=-5, var_1_14=128, var_1_15=4, var_1_16=500, var_1_17=2, var_1_18=100, var_1_1=10, var_1_2=0, var_1_5=1, var_1_7=256, var_1_8=0, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=-5, last_1_var_1_17=2, var_1_10=0, var_1_11=0, var_1_12=-5, var_1_14=128, var_1_15=4, var_1_16=500, var_1_17=2, var_1_18=100, var_1_1=10, var_1_2=0, var_1_5=1, var_1_7=256, var_1_8=0, var_1_9=0] [L87] RET assume_abort_if_not(var_1_11 >= 0) VAL [isInitial=1, last_1_var_1_12=-5, last_1_var_1_17=2, var_1_10=0, var_1_11=0, var_1_12=-5, var_1_14=128, var_1_15=4, var_1_16=500, var_1_17=2, var_1_18=100, var_1_1=10, var_1_2=0, var_1_5=1, var_1_7=256, var_1_8=0, var_1_9=0] [L88] CALL assume_abort_if_not(var_1_11 <= 2147483647) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=-5, last_1_var_1_17=2, var_1_10=0, var_1_11=0, var_1_12=-5, var_1_14=128, var_1_15=4, var_1_16=500, var_1_17=2, var_1_18=100, var_1_1=10, var_1_2=0, var_1_5=1, var_1_7=256, var_1_8=0, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=-5, last_1_var_1_17=2, var_1_10=0, var_1_11=0, var_1_12=-5, var_1_14=128, var_1_15=4, var_1_16=500, var_1_17=2, var_1_18=100, var_1_1=10, var_1_2=0, var_1_5=1, var_1_7=256, var_1_8=0, var_1_9=0] [L88] RET assume_abort_if_not(var_1_11 <= 2147483647) VAL [isInitial=1, last_1_var_1_12=-5, last_1_var_1_17=2, var_1_10=0, var_1_11=0, var_1_12=-5, var_1_14=128, var_1_15=4, var_1_16=500, var_1_17=2, var_1_18=100, var_1_1=10, var_1_2=0, var_1_5=1, var_1_7=256, var_1_8=0, var_1_9=0] [L89] var_1_14 = __VERIFIER_nondet_uchar() [L90] CALL assume_abort_if_not(var_1_14 >= 127) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=-5, last_1_var_1_17=2, var_1_10=0, var_1_11=0, var_1_12=-5, var_1_14=127, var_1_15=4, var_1_16=500, var_1_17=2, var_1_18=100, var_1_1=10, var_1_2=0, var_1_5=1, var_1_7=256, var_1_8=0, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=-5, last_1_var_1_17=2, var_1_10=0, var_1_11=0, var_1_12=-5, var_1_14=127, var_1_15=4, var_1_16=500, var_1_17=2, var_1_18=100, var_1_1=10, var_1_2=0, var_1_5=1, var_1_7=256, var_1_8=0, var_1_9=0] [L90] RET assume_abort_if_not(var_1_14 >= 127) VAL [isInitial=1, last_1_var_1_12=-5, last_1_var_1_17=2, var_1_10=0, var_1_11=0, var_1_12=-5, var_1_14=127, var_1_15=4, var_1_16=500, var_1_17=2, var_1_18=100, var_1_1=10, var_1_2=0, var_1_5=1, var_1_7=256, var_1_8=0, var_1_9=0] [L91] CALL assume_abort_if_not(var_1_14 <= 255) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=-5, last_1_var_1_17=2, var_1_10=0, var_1_11=0, var_1_12=-5, var_1_14=127, var_1_15=4, var_1_16=500, var_1_17=2, var_1_18=100, var_1_1=10, var_1_2=0, var_1_5=1, var_1_7=256, var_1_8=0, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=-5, last_1_var_1_17=2, var_1_10=0, var_1_11=0, var_1_12=-5, var_1_14=127, var_1_15=4, var_1_16=500, var_1_17=2, var_1_18=100, var_1_1=10, var_1_2=0, var_1_5=1, var_1_7=256, var_1_8=0, var_1_9=0] [L91] RET assume_abort_if_not(var_1_14 <= 255) VAL [isInitial=1, last_1_var_1_12=-5, last_1_var_1_17=2, var_1_10=0, var_1_11=0, var_1_12=-5, var_1_14=127, var_1_15=4, var_1_16=500, var_1_17=2, var_1_18=100, var_1_1=10, var_1_2=0, var_1_5=1, var_1_7=256, var_1_8=0, var_1_9=0] [L92] var_1_18 = __VERIFIER_nondet_uchar() [L93] CALL assume_abort_if_not(var_1_18 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=-5, last_1_var_1_17=2, var_1_10=0, var_1_11=0, var_1_12=-5, var_1_14=127, var_1_15=4, var_1_16=500, var_1_17=2, var_1_1=10, var_1_2=0, var_1_5=1, var_1_7=256, var_1_8=0, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=-5, last_1_var_1_17=2, var_1_10=0, var_1_11=0, var_1_12=-5, var_1_14=127, var_1_15=4, var_1_16=500, var_1_17=2, var_1_1=10, var_1_2=0, var_1_5=1, var_1_7=256, var_1_8=0, var_1_9=0] [L93] RET assume_abort_if_not(var_1_18 >= 0) VAL [isInitial=1, last_1_var_1_12=-5, last_1_var_1_17=2, var_1_10=0, var_1_11=0, var_1_12=-5, var_1_14=127, var_1_15=4, var_1_16=500, var_1_17=2, var_1_1=10, var_1_2=0, var_1_5=1, var_1_7=256, var_1_8=0, var_1_9=0] [L94] CALL assume_abort_if_not(var_1_18 <= 254) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=-5, last_1_var_1_17=2, var_1_10=0, var_1_11=0, var_1_12=-5, var_1_14=127, var_1_15=4, var_1_16=500, var_1_17=2, var_1_18=-2, var_1_1=10, var_1_2=0, var_1_5=1, var_1_7=256, var_1_8=0, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=-5, last_1_var_1_17=2, var_1_10=0, var_1_11=0, var_1_12=-5, var_1_14=127, var_1_15=4, var_1_16=500, var_1_17=2, var_1_18=-2, var_1_1=10, var_1_2=0, var_1_5=1, var_1_7=256, var_1_8=0, var_1_9=0] [L94] RET assume_abort_if_not(var_1_18 <= 254) VAL [isInitial=1, last_1_var_1_12=-5, last_1_var_1_17=2, var_1_10=0, var_1_11=0, var_1_12=-5, var_1_14=127, var_1_15=4, var_1_16=500, var_1_17=2, var_1_18=-2, var_1_1=10, var_1_2=0, var_1_5=1, var_1_7=256, var_1_8=0, var_1_9=0] [L109] RET updateVariables() [L110] CALL step() [L41] unsigned char stepLocal_1 = last_1_var_1_12 >= last_1_var_1_17; [L42] signed long int stepLocal_0 = last_1_var_1_17; VAL [isInitial=1, last_1_var_1_12=-5, last_1_var_1_17=2, stepLocal_0=2, stepLocal_1=0, var_1_10=0, var_1_11=0, var_1_12=-5, var_1_14=127, var_1_15=4, var_1_16=500, var_1_17=2, var_1_18=-2, var_1_1=10, var_1_2=0, var_1_5=1, var_1_7=256, var_1_8=0, var_1_9=0] [L43] COND FALSE !(\read(var_1_2)) [L52] var_1_1 = last_1_var_1_17 VAL [isInitial=1, last_1_var_1_12=-5, last_1_var_1_17=2, stepLocal_0=2, stepLocal_1=0, var_1_10=0, var_1_11=0, var_1_12=-5, var_1_14=127, var_1_15=4, var_1_16=500, var_1_17=2, var_1_18=-2, var_1_1=2, var_1_2=0, var_1_5=1, var_1_7=256, var_1_8=0, var_1_9=0] [L54] COND FALSE !(\read(var_1_2)) VAL [isInitial=1, last_1_var_1_12=-5, last_1_var_1_17=2, stepLocal_0=2, stepLocal_1=0, var_1_10=0, var_1_11=0, var_1_12=-5, var_1_14=127, var_1_15=4, var_1_16=500, var_1_17=2, var_1_18=-2, var_1_1=2, var_1_2=0, var_1_5=1, var_1_7=256, var_1_8=0, var_1_9=0] [L57] var_1_15 = var_1_8 [L58] var_1_16 = var_1_14 [L59] var_1_17 = var_1_18 VAL [isInitial=1, last_1_var_1_12=-5, last_1_var_1_17=2, stepLocal_0=2, stepLocal_1=0, var_1_10=0, var_1_11=0, var_1_12=-5, var_1_14=127, var_1_15=0, var_1_16=127, var_1_17=-2, var_1_18=-2, var_1_1=2, var_1_2=0, var_1_5=1, var_1_7=256, var_1_8=0, var_1_9=0] [L60] EXPR -4 >> var_1_1 VAL [isInitial=1, last_1_var_1_12=-5, last_1_var_1_17=2, stepLocal_0=2, stepLocal_1=0, var_1_10=0, var_1_11=0, var_1_12=-5, var_1_14=127, var_1_15=0, var_1_16=127, var_1_17=-2, var_1_18=-2, var_1_1=2, var_1_2=0, var_1_5=1, var_1_7=256, var_1_8=0, var_1_9=0] [L60] EXPR (((-4 >> var_1_1)) < (var_1_1)) ? ((-4 >> var_1_1)) : (var_1_1) VAL [isInitial=1, last_1_var_1_12=-5, last_1_var_1_17=2, stepLocal_0=2, stepLocal_1=0, var_1_10=0, var_1_11=0, var_1_12=-5, var_1_14=127, var_1_15=0, var_1_16=127, var_1_17=-2, var_1_18=-2, var_1_1=2, var_1_2=0, var_1_5=1, var_1_7=256, var_1_8=0, var_1_9=0] [L60] EXPR -4 >> var_1_1 VAL [isInitial=1, last_1_var_1_12=-5, last_1_var_1_17=2, stepLocal_0=2, stepLocal_1=0, var_1_10=0, var_1_11=0, var_1_12=-5, var_1_14=127, var_1_15=0, var_1_16=127, var_1_17=-2, var_1_18=-2, var_1_1=2, var_1_2=0, var_1_5=1, var_1_7=256, var_1_8=0, var_1_9=0] [L60] EXPR (((-4 >> var_1_1)) < (var_1_1)) ? ((-4 >> var_1_1)) : (var_1_1) VAL [isInitial=1, last_1_var_1_12=-5, last_1_var_1_17=2, stepLocal_0=2, stepLocal_1=0, var_1_10=0, var_1_11=0, var_1_12=-5, var_1_14=127, var_1_15=0, var_1_16=127, var_1_17=-2, var_1_18=-2, var_1_1=2, var_1_2=0, var_1_5=1, var_1_7=256, var_1_8=0, var_1_9=0] [L60] signed long int stepLocal_3 = ((((-4 >> var_1_1)) < (var_1_1)) ? ((-4 >> var_1_1)) : (var_1_1)); [L61] signed long int stepLocal_2 = var_1_1 / -8; VAL [isInitial=1, last_1_var_1_12=-5, last_1_var_1_17=2, stepLocal_0=2, stepLocal_1=0, stepLocal_2=0, stepLocal_3=-255, var_1_10=0, var_1_11=0, var_1_12=-5, var_1_14=127, var_1_15=0, var_1_16=127, var_1_17=-2, var_1_18=-2, var_1_1=2, var_1_2=0, var_1_5=1, var_1_7=256, var_1_8=0, var_1_9=0] [L62] COND TRUE (~ var_1_17) <= stepLocal_3 VAL [isInitial=1, last_1_var_1_12=-5, last_1_var_1_17=2, stepLocal_0=2, stepLocal_1=0, stepLocal_2=0, var_1_10=0, var_1_11=0, var_1_12=-5, var_1_14=127, var_1_15=0, var_1_16=127, var_1_17=-2, var_1_18=-2, var_1_1=2, var_1_2=0, var_1_5=1, var_1_7=256, var_1_8=0, var_1_9=0] [L63] COND FALSE !((var_1_14 - 64) < stepLocal_2) VAL [isInitial=1, last_1_var_1_12=-5, last_1_var_1_17=2, stepLocal_0=2, stepLocal_1=0, var_1_10=0, var_1_11=0, var_1_12=-5, var_1_14=127, var_1_15=0, var_1_16=127, var_1_17=-2, var_1_18=-2, var_1_1=2, var_1_2=0, var_1_5=1, var_1_7=256, var_1_8=0, var_1_9=0] [L110] RET step() [L111] CALL, EXPR property() [L101] EXPR ((var_1_2 ? (((last_1_var_1_12 >= last_1_var_1_17) && var_1_5) ? ((last_1_var_1_12 >= last_1_var_1_17) ? (var_1_1 == ((unsigned short int) 5)) : (var_1_1 == ((unsigned short int) ((((25) < (last_1_var_1_17)) ? (25) : (last_1_var_1_17)))))) : 1) : (var_1_1 == ((unsigned short int) last_1_var_1_17))) && (var_1_2 ? (var_1_7 == ((signed long int) (((var_1_8 + var_1_9) + var_1_10) - var_1_11))) : 1)) && (((~ var_1_17) <= (((((-4 >> var_1_1)) < (var_1_1)) ? ((-4 >> var_1_1)) : (var_1_1)))) ? (((var_1_14 - 64) < (var_1_1 / -8)) ? (var_1_12 == ((signed long int) var_1_1)) : 1) : (var_1_12 == ((signed long int) (var_1_17 - var_1_14)))) VAL [isInitial=1, last_1_var_1_12=-5, last_1_var_1_17=2, var_1_10=0, var_1_11=0, var_1_12=-5, var_1_14=127, var_1_15=0, var_1_16=127, var_1_17=-2, var_1_18=-2, var_1_1=2, var_1_2=0, var_1_5=1, var_1_7=256, var_1_8=0, var_1_9=0] [L101] EXPR -4 >> var_1_1 VAL [isInitial=1, last_1_var_1_12=-5, last_1_var_1_17=2, var_1_10=0, var_1_11=0, var_1_12=-5, var_1_14=127, var_1_15=0, var_1_16=127, var_1_17=-2, var_1_18=-2, var_1_1=2, var_1_2=0, var_1_5=1, var_1_7=256, var_1_8=0, var_1_9=0] [L101] EXPR (((-4 >> var_1_1)) < (var_1_1)) ? ((-4 >> var_1_1)) : (var_1_1) VAL [isInitial=1, last_1_var_1_12=-5, last_1_var_1_17=2, var_1_10=0, var_1_11=0, var_1_12=-5, var_1_14=127, var_1_15=0, var_1_16=127, var_1_17=-2, var_1_18=-2, var_1_1=2, var_1_2=0, var_1_5=1, var_1_7=256, var_1_8=0, var_1_9=0] [L101] EXPR -4 >> var_1_1 VAL [isInitial=1, last_1_var_1_12=-5, last_1_var_1_17=2, var_1_10=0, var_1_11=0, var_1_12=-5, var_1_14=127, var_1_15=0, var_1_16=127, var_1_17=-2, var_1_18=-2, var_1_1=2, var_1_2=0, var_1_5=1, var_1_7=256, var_1_8=0, var_1_9=0] [L101] EXPR (((-4 >> var_1_1)) < (var_1_1)) ? ((-4 >> var_1_1)) : (var_1_1) VAL [isInitial=1, last_1_var_1_12=-5, last_1_var_1_17=2, var_1_10=0, var_1_11=0, var_1_12=-5, var_1_14=127, var_1_15=0, var_1_16=127, var_1_17=-2, var_1_18=-2, var_1_1=2, var_1_2=0, var_1_5=1, var_1_7=256, var_1_8=0, var_1_9=0] [L101] EXPR ((var_1_2 ? (((last_1_var_1_12 >= last_1_var_1_17) && var_1_5) ? ((last_1_var_1_12 >= last_1_var_1_17) ? (var_1_1 == ((unsigned short int) 5)) : (var_1_1 == ((unsigned short int) ((((25) < (last_1_var_1_17)) ? (25) : (last_1_var_1_17)))))) : 1) : (var_1_1 == ((unsigned short int) last_1_var_1_17))) && (var_1_2 ? (var_1_7 == ((signed long int) (((var_1_8 + var_1_9) + var_1_10) - var_1_11))) : 1)) && (((~ var_1_17) <= (((((-4 >> var_1_1)) < (var_1_1)) ? ((-4 >> var_1_1)) : (var_1_1)))) ? (((var_1_14 - 64) < (var_1_1 / -8)) ? (var_1_12 == ((signed long int) var_1_1)) : 1) : (var_1_12 == ((signed long int) (var_1_17 - var_1_14)))) VAL [isInitial=1, last_1_var_1_12=-5, last_1_var_1_17=2, var_1_10=0, var_1_11=0, var_1_12=-5, var_1_14=127, var_1_15=0, var_1_16=127, var_1_17=-2, var_1_18=-2, var_1_1=2, var_1_2=0, var_1_5=1, var_1_7=256, var_1_8=0, var_1_9=0] [L101-L102] return (((((var_1_2 ? (((last_1_var_1_12 >= last_1_var_1_17) && var_1_5) ? ((last_1_var_1_12 >= last_1_var_1_17) ? (var_1_1 == ((unsigned short int) 5)) : (var_1_1 == ((unsigned short int) ((((25) < (last_1_var_1_17)) ? (25) : (last_1_var_1_17)))))) : 1) : (var_1_1 == ((unsigned short int) last_1_var_1_17))) && (var_1_2 ? (var_1_7 == ((signed long int) (((var_1_8 + var_1_9) + var_1_10) - var_1_11))) : 1)) && (((~ var_1_17) <= (((((-4 >> var_1_1)) < (var_1_1)) ? ((-4 >> var_1_1)) : (var_1_1)))) ? (((var_1_14 - 64) < (var_1_1 / -8)) ? (var_1_12 == ((signed long int) var_1_1)) : 1) : (var_1_12 == ((signed long int) (var_1_17 - var_1_14))))) && (var_1_15 == ((signed long int) var_1_8))) && (var_1_16 == ((unsigned long int) var_1_14))) && (var_1_17 == ((unsigned char) var_1_18)) ; [L111] RET, EXPR property() [L111] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [isInitial=1, last_1_var_1_12=-5, last_1_var_1_17=2, var_1_10=0, var_1_11=0, var_1_12=-5, var_1_14=127, var_1_15=0, var_1_16=127, var_1_17=-2, var_1_18=-2, var_1_1=2, var_1_2=0, var_1_5=1, var_1_7=256, var_1_8=0, var_1_9=0] [L19] reach_error() VAL [isInitial=1, last_1_var_1_12=-5, last_1_var_1_17=2, var_1_10=0, var_1_11=0, var_1_12=-5, var_1_14=127, var_1_15=0, var_1_16=127, var_1_17=-2, var_1_18=-2, var_1_1=2, var_1_2=0, var_1_5=1, var_1_7=256, var_1_8=0, var_1_9=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 66 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 18.0s, OverallIterations: 14, TraceHistogramMax: 16, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 5.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1422 SdHoareTripleChecker+Valid, 3.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1374 mSDsluCounter, 3620 SdHoareTripleChecker+Invalid, 2.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2434 mSDsCounter, 497 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1488 IncrementalHoareTripleChecker+Invalid, 1985 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 497 mSolverCounterUnsat, 1186 mSDtfsCounter, 1488 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 696 GetRequests, 589 SyntacticMatches, 1 SemanticMatches, 106 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 549 ImplicationChecksByTransitivity, 2.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=353occurred in iteration=13, InterpolantAutomatonStates: 96, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.6s AutomataMinimizationTime, 13 MinimizatonAttempts, 592 StatesRemovedByMinimization, 10 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.8s SatisfiabilityAnalysisTime, 10.0s InterpolantComputationTime, 1903 NumberOfCodeBlocks, 1903 NumberOfCodeBlocksAsserted, 17 NumberOfCheckSat, 2002 ConstructedInterpolants, 0 QuantifiedInterpolants, 6027 SizeOfPredicates, 13 NumberOfNonLiveVariables, 807 ConjunctsInSsa, 40 ConjunctsInUnsatCore, 18 InterpolantComputations, 11 PerfectInterpolantSequences, 8514/8640 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 [2024-11-23 23:23:09,148 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbccdd8f-8bbf-4c1d-bf96-7d7da1f7e229/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbccdd8f-8bbf-4c1d-bf96-7d7da1f7e229/bin/uautomizer-verify-LYvppIcaGC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbccdd8f-8bbf-4c1d-bf96-7d7da1f7e229/bin/uautomizer-verify-LYvppIcaGC/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbccdd8f-8bbf-4c1d-bf96-7d7da1f7e229/bin/uautomizer-verify-LYvppIcaGC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbccdd8f-8bbf-4c1d-bf96-7d7da1f7e229/bin/uautomizer-verify-LYvppIcaGC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-55.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbccdd8f-8bbf-4c1d-bf96-7d7da1f7e229/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbccdd8f-8bbf-4c1d-bf96-7d7da1f7e229/bin/uautomizer-verify-LYvppIcaGC --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 3559b3594a82cd675e67391d8043202d21aa0bea5a13d40b68d97450424826dd --- Real Ultimate output --- This is Ultimate 0.3.0-dev-6497de0 [2024-11-23 23:23:12,379 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-23 23:23:12,522 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbccdd8f-8bbf-4c1d-bf96-7d7da1f7e229/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-11-23 23:23:12,530 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-23 23:23:12,531 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-23 23:23:12,563 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-23 23:23:12,563 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-23 23:23:12,564 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-23 23:23:12,564 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-23 23:23:12,564 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-23 23:23:12,565 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-23 23:23:12,565 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-23 23:23:12,565 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-23 23:23:12,565 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-23 23:23:12,566 INFO L153 SettingsManager]: * Use SBE=true [2024-11-23 23:23:12,566 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-23 23:23:12,566 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-23 23:23:12,566 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-23 23:23:12,567 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-23 23:23:12,567 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-23 23:23:12,567 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-23 23:23:12,567 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-23 23:23:12,567 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-23 23:23:12,567 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-23 23:23:12,568 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-23 23:23:12,568 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-23 23:23:12,568 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-23 23:23:12,568 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-23 23:23:12,568 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-23 23:23:12,568 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-23 23:23:12,569 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-23 23:23:12,569 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-23 23:23:12,569 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-23 23:23:12,569 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-23 23:23:12,569 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 23:23:12,569 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-23 23:23:12,569 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-23 23:23:12,569 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-23 23:23:12,570 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-23 23:23:12,570 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 23:23:12,570 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-23 23:23:12,570 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-23 23:23:12,570 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-23 23:23:12,571 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-23 23:23:12,571 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2024-11-23 23:23:12,571 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-23 23:23:12,571 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-23 23:23:12,571 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-23 23:23:12,571 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-23 23:23:12,571 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-23 23:23:12,572 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_cbccdd8f-8bbf-4c1d-bf96-7d7da1f7e229/bin/uautomizer-verify-LYvppIcaGC Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3559b3594a82cd675e67391d8043202d21aa0bea5a13d40b68d97450424826dd [2024-11-23 23:23:12,973 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-23 23:23:12,987 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-23 23:23:12,990 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-23 23:23:12,992 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-23 23:23:12,992 INFO L274 PluginConnector]: CDTParser initialized [2024-11-23 23:23:12,994 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbccdd8f-8bbf-4c1d-bf96-7d7da1f7e229/bin/uautomizer-verify-LYvppIcaGC/../../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-55.i [2024-11-23 23:23:16,444 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbccdd8f-8bbf-4c1d-bf96-7d7da1f7e229/bin/uautomizer-verify-LYvppIcaGC/data/acbb3cf76/61117200fd5941ecb908385b8a5c2122/FLAG1889200be [2024-11-23 23:23:16,793 INFO L384 CDTParser]: Found 1 translation units. [2024-11-23 23:23:16,794 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbccdd8f-8bbf-4c1d-bf96-7d7da1f7e229/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-55.i [2024-11-23 23:23:16,807 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbccdd8f-8bbf-4c1d-bf96-7d7da1f7e229/bin/uautomizer-verify-LYvppIcaGC/data/acbb3cf76/61117200fd5941ecb908385b8a5c2122/FLAG1889200be [2024-11-23 23:23:16,824 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbccdd8f-8bbf-4c1d-bf96-7d7da1f7e229/bin/uautomizer-verify-LYvppIcaGC/data/acbb3cf76/61117200fd5941ecb908385b8a5c2122 [2024-11-23 23:23:16,827 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-23 23:23:16,829 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-23 23:23:16,830 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-23 23:23:16,831 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-23 23:23:16,836 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-23 23:23:16,836 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 11:23:16" (1/1) ... [2024-11-23 23:23:16,837 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@45c54a92 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:23:16, skipping insertion in model container [2024-11-23 23:23:16,837 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 11:23:16" (1/1) ... [2024-11-23 23:23:16,858 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-23 23:23:17,076 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_cbccdd8f-8bbf-4c1d-bf96-7d7da1f7e229/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-55.i[916,929] [2024-11-23 23:23:17,156 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-23 23:23:17,188 INFO L200 MainTranslator]: Completed pre-run [2024-11-23 23:23:17,203 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_cbccdd8f-8bbf-4c1d-bf96-7d7da1f7e229/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-55.i[916,929] [2024-11-23 23:23:17,254 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-23 23:23:17,290 INFO L204 MainTranslator]: Completed translation [2024-11-23 23:23:17,291 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:23:17 WrapperNode [2024-11-23 23:23:17,292 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-23 23:23:17,294 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-23 23:23:17,294 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-23 23:23:17,294 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-23 23:23:17,309 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:23:17" (1/1) ... [2024-11-23 23:23:17,320 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:23:17" (1/1) ... [2024-11-23 23:23:17,348 INFO L138 Inliner]: procedures = 27, calls = 29, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 110 [2024-11-23 23:23:17,349 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-23 23:23:17,349 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-23 23:23:17,349 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-23 23:23:17,350 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-23 23:23:17,361 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:23:17" (1/1) ... [2024-11-23 23:23:17,361 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:23:17" (1/1) ... [2024-11-23 23:23:17,368 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:23:17" (1/1) ... [2024-11-23 23:23:17,392 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]. [2024-11-23 23:23:17,392 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:23:17" (1/1) ... [2024-11-23 23:23:17,393 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:23:17" (1/1) ... [2024-11-23 23:23:17,405 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:23:17" (1/1) ... [2024-11-23 23:23:17,409 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:23:17" (1/1) ... [2024-11-23 23:23:17,417 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:23:17" (1/1) ... [2024-11-23 23:23:17,421 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:23:17" (1/1) ... [2024-11-23 23:23:17,424 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:23:17" (1/1) ... [2024-11-23 23:23:17,429 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-23 23:23:17,433 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-23 23:23:17,433 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-23 23:23:17,434 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-23 23:23:17,435 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:23:17" (1/1) ... [2024-11-23 23:23:17,450 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 23:23:17,470 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbccdd8f-8bbf-4c1d-bf96-7d7da1f7e229/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:23:17,489 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbccdd8f-8bbf-4c1d-bf96-7d7da1f7e229/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-23 23:23:17,496 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbccdd8f-8bbf-4c1d-bf96-7d7da1f7e229/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-23 23:23:17,528 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-23 23:23:17,529 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-23 23:23:17,529 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-23 23:23:17,529 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-23 23:23:17,529 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-23 23:23:17,529 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-23 23:23:17,637 INFO L234 CfgBuilder]: Building ICFG [2024-11-23 23:23:17,640 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-23 23:23:17,961 INFO L? ?]: Removed 16 outVars from TransFormulas that were not future-live. [2024-11-23 23:23:17,962 INFO L283 CfgBuilder]: Performing block encoding [2024-11-23 23:23:17,976 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-23 23:23:17,976 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-23 23:23:17,977 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 11:23:17 BoogieIcfgContainer [2024-11-23 23:23:17,977 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-23 23:23:17,980 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-23 23:23:17,980 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-23 23:23:17,986 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-23 23:23:17,987 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 11:23:16" (1/3) ... [2024-11-23 23:23:17,988 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6aa114e6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 11:23:17, skipping insertion in model container [2024-11-23 23:23:17,988 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:23:17" (2/3) ... [2024-11-23 23:23:17,988 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6aa114e6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 11:23:17, skipping insertion in model container [2024-11-23 23:23:17,989 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 11:23:17" (3/3) ... [2024-11-23 23:23:17,990 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_floatingpointinfluence_no-floats_file-55.i [2024-11-23 23:23:18,011 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-23 23:23:18,014 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_floatingpointinfluence_no-floats_file-55.i that has 2 procedures, 50 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-23 23:23:18,111 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-23 23:23:18,143 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;@3cae4993, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-23 23:23:18,143 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-23 23:23:18,148 INFO L276 IsEmpty]: Start isEmpty. Operand has 50 states, 31 states have (on average 1.3548387096774193) internal successors, (42), 32 states have internal predecessors, (42), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2024-11-23 23:23:18,160 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-11-23 23:23:18,160 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:23:18,161 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:23:18,162 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:23:18,168 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:23:18,168 INFO L85 PathProgramCache]: Analyzing trace with hash -1174662013, now seen corresponding path program 1 times [2024-11-23 23:23:18,181 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-23 23:23:18,182 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [716705757] [2024-11-23 23:23:18,182 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:23:18,183 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:23:18,183 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbccdd8f-8bbf-4c1d-bf96-7d7da1f7e229/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:23:18,186 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbccdd8f-8bbf-4c1d-bf96-7d7da1f7e229/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 23:23:18,192 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbccdd8f-8bbf-4c1d-bf96-7d7da1f7e229/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-23 23:23:18,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:23:18,450 INFO L256 TraceCheckSpWp]: Trace formula consists of 173 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-23 23:23:18,463 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:23:18,531 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 450 trivial. 0 not checked. [2024-11-23 23:23:18,531 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 23:23:18,534 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-23 23:23:18,535 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [716705757] [2024-11-23 23:23:18,535 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [716705757] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:23:18,536 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:23:18,536 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-23 23:23:18,538 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2129178360] [2024-11-23 23:23:18,541 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:23:18,546 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-23 23:23:18,547 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-23 23:23:18,575 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-23 23:23:18,576 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-23 23:23:18,578 INFO L87 Difference]: Start difference. First operand has 50 states, 31 states have (on average 1.3548387096774193) internal successors, (42), 32 states have internal predecessors, (42), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) Second operand has 2 states, 2 states have (on average 13.0) internal successors, (26), 2 states have internal predecessors, (26), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-23 23:23:18,618 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:23:18,620 INFO L93 Difference]: Finished difference Result 93 states and 158 transitions. [2024-11-23 23:23:18,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-23 23:23:18,623 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 13.0) internal successors, (26), 2 states have internal predecessors, (26), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 2 states have call successors, (16) Word has length 101 [2024-11-23 23:23:18,623 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:23:18,632 INFO L225 Difference]: With dead ends: 93 [2024-11-23 23:23:18,634 INFO L226 Difference]: Without dead ends: 46 [2024-11-23 23:23:18,639 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 100 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-23 23:23:18,643 INFO L435 NwaCegarLoop]: 67 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, 67 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 [2024-11-23 23:23:18,646 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 23:23:18,663 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2024-11-23 23:23:18,697 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 46. [2024-11-23 23:23:18,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46 states, 28 states have (on average 1.25) internal successors, (35), 28 states have internal predecessors, (35), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2024-11-23 23:23:18,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 67 transitions. [2024-11-23 23:23:18,711 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 67 transitions. Word has length 101 [2024-11-23 23:23:18,713 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:23:18,713 INFO L471 AbstractCegarLoop]: Abstraction has 46 states and 67 transitions. [2024-11-23 23:23:18,714 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 13.0) internal successors, (26), 2 states have internal predecessors, (26), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-23 23:23:18,714 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 67 transitions. [2024-11-23 23:23:18,719 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-11-23 23:23:18,722 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:23:18,723 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:23:18,736 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbccdd8f-8bbf-4c1d-bf96-7d7da1f7e229/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-23 23:23:18,923 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbccdd8f-8bbf-4c1d-bf96-7d7da1f7e229/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:23:18,924 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:23:18,924 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:23:18,925 INFO L85 PathProgramCache]: Analyzing trace with hash 730412163, now seen corresponding path program 1 times [2024-11-23 23:23:18,925 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-23 23:23:18,926 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [90985831] [2024-11-23 23:23:18,926 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:23:18,926 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:23:18,926 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbccdd8f-8bbf-4c1d-bf96-7d7da1f7e229/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:23:18,930 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbccdd8f-8bbf-4c1d-bf96-7d7da1f7e229/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 23:23:18,934 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbccdd8f-8bbf-4c1d-bf96-7d7da1f7e229/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-23 23:23:19,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:23:19,127 INFO L256 TraceCheckSpWp]: Trace formula consists of 173 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-23 23:23:19,139 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:23:19,198 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-11-23 23:23:19,200 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 23:23:19,200 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-23 23:23:19,201 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [90985831] [2024-11-23 23:23:19,201 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [90985831] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:23:19,201 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:23:19,201 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 23:23:19,201 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1165218445] [2024-11-23 23:23:19,202 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:23:19,203 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 23:23:19,204 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-23 23:23:19,205 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 23:23:19,205 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 23:23:19,206 INFO L87 Difference]: Start difference. First operand 46 states and 67 transitions. Second operand has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-23 23:23:19,290 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:23:19,291 INFO L93 Difference]: Finished difference Result 101 states and 146 transitions. [2024-11-23 23:23:19,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 23:23:19,293 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 101 [2024-11-23 23:23:19,294 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:23:19,298 INFO L225 Difference]: With dead ends: 101 [2024-11-23 23:23:19,298 INFO L226 Difference]: Without dead ends: 58 [2024-11-23 23:23:19,299 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 99 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 23:23:19,300 INFO L435 NwaCegarLoop]: 65 mSDtfsCounter, 15 mSDsluCounter, 56 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 121 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-23 23:23:19,301 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 121 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-23 23:23:19,302 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2024-11-23 23:23:19,309 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 47. [2024-11-23 23:23:19,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47 states, 29 states have (on average 1.2413793103448276) internal successors, (36), 29 states have internal predecessors, (36), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2024-11-23 23:23:19,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 68 transitions. [2024-11-23 23:23:19,314 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 68 transitions. Word has length 101 [2024-11-23 23:23:19,315 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:23:19,316 INFO L471 AbstractCegarLoop]: Abstraction has 47 states and 68 transitions. [2024-11-23 23:23:19,316 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-23 23:23:19,316 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 68 transitions. [2024-11-23 23:23:19,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-11-23 23:23:19,321 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:23:19,322 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:23:19,334 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbccdd8f-8bbf-4c1d-bf96-7d7da1f7e229/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-23 23:23:19,522 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbccdd8f-8bbf-4c1d-bf96-7d7da1f7e229/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:23:19,523 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:23:19,523 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:23:19,524 INFO L85 PathProgramCache]: Analyzing trace with hash -1789547771, now seen corresponding path program 1 times [2024-11-23 23:23:19,525 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-23 23:23:19,525 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [395052893] [2024-11-23 23:23:19,525 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:23:19,525 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:23:19,525 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbccdd8f-8bbf-4c1d-bf96-7d7da1f7e229/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:23:19,530 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbccdd8f-8bbf-4c1d-bf96-7d7da1f7e229/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 23:23:19,532 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbccdd8f-8bbf-4c1d-bf96-7d7da1f7e229/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-23 23:23:19,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:23:19,715 INFO L256 TraceCheckSpWp]: Trace formula consists of 172 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-23 23:23:19,737 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:23:20,244 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-11-23 23:23:20,244 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 23:23:20,244 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-23 23:23:20,244 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [395052893] [2024-11-23 23:23:20,245 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [395052893] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:23:20,245 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:23:20,245 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-23 23:23:20,245 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1487007292] [2024-11-23 23:23:20,245 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:23:20,247 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-23 23:23:20,247 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-23 23:23:20,248 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-23 23:23:20,248 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-23 23:23:20,248 INFO L87 Difference]: Start difference. First operand 47 states and 68 transitions. Second operand has 6 states, 6 states have (on average 4.0) internal successors, (24), 5 states have internal predecessors, (24), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-23 23:23:20,597 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:23:20,598 INFO L93 Difference]: Finished difference Result 190 states and 277 transitions. [2024-11-23 23:23:20,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-23 23:23:20,599 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.0) internal successors, (24), 5 states have internal predecessors, (24), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 101 [2024-11-23 23:23:20,600 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:23:20,602 INFO L225 Difference]: With dead ends: 190 [2024-11-23 23:23:20,603 INFO L226 Difference]: Without dead ends: 146 [2024-11-23 23:23:20,604 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 96 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2024-11-23 23:23:20,605 INFO L435 NwaCegarLoop]: 111 mSDtfsCounter, 125 mSDsluCounter, 292 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 125 SdHoareTripleChecker+Valid, 403 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-23 23:23:20,605 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [125 Valid, 403 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-23 23:23:20,606 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2024-11-23 23:23:20,648 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 121. [2024-11-23 23:23:20,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 121 states, 69 states have (on average 1.2173913043478262) internal successors, (84), 69 states have internal predecessors, (84), 48 states have call successors, (48), 3 states have call predecessors, (48), 3 states have return successors, (48), 48 states have call predecessors, (48), 48 states have call successors, (48) [2024-11-23 23:23:20,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 180 transitions. [2024-11-23 23:23:20,652 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 180 transitions. Word has length 101 [2024-11-23 23:23:20,653 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:23:20,653 INFO L471 AbstractCegarLoop]: Abstraction has 121 states and 180 transitions. [2024-11-23 23:23:20,653 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.0) internal successors, (24), 5 states have internal predecessors, (24), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-23 23:23:20,653 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 180 transitions. [2024-11-23 23:23:20,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2024-11-23 23:23:20,655 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:23:20,655 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:23:20,667 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbccdd8f-8bbf-4c1d-bf96-7d7da1f7e229/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-23 23:23:20,856 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbccdd8f-8bbf-4c1d-bf96-7d7da1f7e229/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:23:20,856 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:23:20,857 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:23:20,857 INFO L85 PathProgramCache]: Analyzing trace with hash 123033650, now seen corresponding path program 1 times [2024-11-23 23:23:20,858 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-23 23:23:20,858 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1261565514] [2024-11-23 23:23:20,858 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:23:20,858 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:23:20,859 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbccdd8f-8bbf-4c1d-bf96-7d7da1f7e229/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:23:20,861 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbccdd8f-8bbf-4c1d-bf96-7d7da1f7e229/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 23:23:20,863 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbccdd8f-8bbf-4c1d-bf96-7d7da1f7e229/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-23 23:23:20,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:23:20,997 INFO L256 TraceCheckSpWp]: Trace formula consists of 173 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-23 23:23:21,009 INFO L279 TraceCheckSpWp]: Computing forward predicates...