./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_normal_file-97.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_08f1a576-8914-4104-a43c-5859e8ec80d2/bin/uautomizer-verify-LYvppIcaGC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08f1a576-8914-4104-a43c-5859e8ec80d2/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_08f1a576-8914-4104-a43c-5859e8ec80d2/bin/uautomizer-verify-LYvppIcaGC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08f1a576-8914-4104-a43c-5859e8ec80d2/bin/uautomizer-verify-LYvppIcaGC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_normal_file-97.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08f1a576-8914-4104-a43c-5859e8ec80d2/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_08f1a576-8914-4104-a43c-5859e8ec80d2/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 bc5ff12f497c9d9181efc26f3b6e3906b64720260a6608e211112ba137d1de1e --- Real Ultimate output --- This is Ultimate 0.3.0-dev-6497de0 [2024-11-24 01:59:17,719 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-24 01:59:17,835 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08f1a576-8914-4104-a43c-5859e8ec80d2/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-24 01:59:17,842 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-24 01:59:17,844 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-24 01:59:17,891 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-24 01:59:17,893 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-24 01:59:17,894 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-24 01:59:17,894 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-24 01:59:17,895 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-24 01:59:17,895 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-24 01:59:17,896 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-24 01:59:17,896 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-24 01:59:17,896 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-24 01:59:17,897 INFO L153 SettingsManager]: * Use SBE=true [2024-11-24 01:59:17,897 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-24 01:59:17,897 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-24 01:59:17,897 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-24 01:59:17,897 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-24 01:59:17,897 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-24 01:59:17,897 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-24 01:59:17,897 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-24 01:59:17,897 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-24 01:59:17,898 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-24 01:59:17,898 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-24 01:59:17,898 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-24 01:59:17,898 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-24 01:59:17,898 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-24 01:59:17,898 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-24 01:59:17,898 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-24 01:59:17,898 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-24 01:59:17,898 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-24 01:59:17,898 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 01:59:17,898 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-24 01:59:17,899 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-24 01:59:17,899 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-24 01:59:17,900 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-24 01:59:17,900 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 01:59:17,901 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-24 01:59:17,901 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-24 01:59:17,901 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-24 01:59:17,901 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-24 01:59:17,901 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-24 01:59:17,901 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-24 01:59:17,902 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-24 01:59:17,902 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-24 01:59:17,902 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-24 01:59:17,902 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-24 01:59:17,903 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_08f1a576-8914-4104-a43c-5859e8ec80d2/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 -> bc5ff12f497c9d9181efc26f3b6e3906b64720260a6608e211112ba137d1de1e [2024-11-24 01:59:18,293 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-24 01:59:18,310 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-24 01:59:18,312 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-24 01:59:18,314 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-24 01:59:18,315 INFO L274 PluginConnector]: CDTParser initialized [2024-11-24 01:59:18,317 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08f1a576-8914-4104-a43c-5859e8ec80d2/bin/uautomizer-verify-LYvppIcaGC/../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_normal_file-97.i [2024-11-24 01:59:21,924 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08f1a576-8914-4104-a43c-5859e8ec80d2/bin/uautomizer-verify-LYvppIcaGC/data/aa9636230/48159e13a8a443b58c9756d772d09309/FLAG13725ce7c [2024-11-24 01:59:22,277 INFO L384 CDTParser]: Found 1 translation units. [2024-11-24 01:59:22,278 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08f1a576-8914-4104-a43c-5859e8ec80d2/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_normal_file-97.i [2024-11-24 01:59:22,287 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08f1a576-8914-4104-a43c-5859e8ec80d2/bin/uautomizer-verify-LYvppIcaGC/data/aa9636230/48159e13a8a443b58c9756d772d09309/FLAG13725ce7c [2024-11-24 01:59:22,305 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08f1a576-8914-4104-a43c-5859e8ec80d2/bin/uautomizer-verify-LYvppIcaGC/data/aa9636230/48159e13a8a443b58c9756d772d09309 [2024-11-24 01:59:22,308 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-24 01:59:22,310 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-24 01:59:22,312 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-24 01:59:22,312 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-24 01:59:22,318 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-24 01:59:22,319 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 01:59:22" (1/1) ... [2024-11-24 01:59:22,320 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@38a83221 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:59:22, skipping insertion in model container [2024-11-24 01:59:22,320 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 01:59:22" (1/1) ... [2024-11-24 01:59:22,350 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-24 01:59:22,555 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_08f1a576-8914-4104-a43c-5859e8ec80d2/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_normal_file-97.i[913,926] [2024-11-24 01:59:22,642 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 01:59:22,656 INFO L200 MainTranslator]: Completed pre-run [2024-11-24 01:59:22,670 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_08f1a576-8914-4104-a43c-5859e8ec80d2/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_normal_file-97.i[913,926] [2024-11-24 01:59:22,707 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 01:59:22,731 INFO L204 MainTranslator]: Completed translation [2024-11-24 01:59:22,731 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:59:22 WrapperNode [2024-11-24 01:59:22,733 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-24 01:59:22,735 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-24 01:59:22,735 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-24 01:59:22,736 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-24 01:59:22,744 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:59:22" (1/1) ... [2024-11-24 01:59:22,757 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:59:22" (1/1) ... [2024-11-24 01:59:22,816 INFO L138 Inliner]: procedures = 26, calls = 29, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 188 [2024-11-24 01:59:22,817 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-24 01:59:22,817 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-24 01:59:22,817 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-24 01:59:22,817 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-24 01:59:22,840 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:59:22" (1/1) ... [2024-11-24 01:59:22,840 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:59:22" (1/1) ... [2024-11-24 01:59:22,847 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:59:22" (1/1) ... [2024-11-24 01:59:22,888 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-24 01:59:22,889 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:59:22" (1/1) ... [2024-11-24 01:59:22,889 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:59:22" (1/1) ... [2024-11-24 01:59:22,907 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:59:22" (1/1) ... [2024-11-24 01:59:22,912 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:59:22" (1/1) ... [2024-11-24 01:59:22,921 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:59:22" (1/1) ... [2024-11-24 01:59:22,927 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:59:22" (1/1) ... [2024-11-24 01:59:22,929 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:59:22" (1/1) ... [2024-11-24 01:59:22,942 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-24 01:59:22,943 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-24 01:59:22,943 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-24 01:59:22,943 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-24 01:59:22,945 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:59:22" (1/1) ... [2024-11-24 01:59:22,954 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 01:59:22,973 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08f1a576-8914-4104-a43c-5859e8ec80d2/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:59:22,992 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08f1a576-8914-4104-a43c-5859e8ec80d2/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-24 01:59:23,003 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08f1a576-8914-4104-a43c-5859e8ec80d2/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-24 01:59:23,037 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-24 01:59:23,037 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-24 01:59:23,037 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-24 01:59:23,038 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-24 01:59:23,038 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-24 01:59:23,038 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-24 01:59:23,154 INFO L234 CfgBuilder]: Building ICFG [2024-11-24 01:59:23,156 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-24 01:59:23,815 INFO L? ?]: Removed 26 outVars from TransFormulas that were not future-live. [2024-11-24 01:59:23,815 INFO L283 CfgBuilder]: Performing block encoding [2024-11-24 01:59:23,836 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-24 01:59:23,837 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-24 01:59:23,837 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 01:59:23 BoogieIcfgContainer [2024-11-24 01:59:23,838 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-24 01:59:23,842 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-24 01:59:23,842 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-24 01:59:23,850 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-24 01:59:23,851 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 01:59:22" (1/3) ... [2024-11-24 01:59:23,852 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@39c4d535 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 01:59:23, skipping insertion in model container [2024-11-24 01:59:23,852 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:59:22" (2/3) ... [2024-11-24 01:59:23,852 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@39c4d535 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 01:59:23, skipping insertion in model container [2024-11-24 01:59:23,852 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 01:59:23" (3/3) ... [2024-11-24 01:59:23,854 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodestructure_normal_file-97.i [2024-11-24 01:59:23,880 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-24 01:59:23,882 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_fillercode_fillercodestructure_normal_file-97.i that has 2 procedures, 82 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-24 01:59:23,963 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-24 01:59:24,000 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;@62c849da, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-24 01:59:24,001 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-24 01:59:24,006 INFO L276 IsEmpty]: Start isEmpty. Operand has 82 states, 63 states have (on average 1.4444444444444444) internal successors, (91), 64 states have internal predecessors, (91), 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) [2024-11-24 01:59:24,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-11-24 01:59:24,024 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:59:24,025 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] [2024-11-24 01:59:24,026 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:59:24,036 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:59:24,036 INFO L85 PathProgramCache]: Analyzing trace with hash -1375575586, now seen corresponding path program 1 times [2024-11-24 01:59:24,048 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:59:24,049 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [177509886] [2024-11-24 01:59:24,049 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:59:24,050 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:59:24,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:59:24,530 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 450 trivial. 0 not checked. [2024-11-24 01:59:24,534 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:59:24,534 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [177509886] [2024-11-24 01:59:24,535 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [177509886] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 01:59:24,535 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [193523617] [2024-11-24 01:59:24,536 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:59:24,536 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:59:24,536 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08f1a576-8914-4104-a43c-5859e8ec80d2/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:59:24,545 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08f1a576-8914-4104-a43c-5859e8ec80d2/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:59:24,547 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08f1a576-8914-4104-a43c-5859e8ec80d2/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-24 01:59:24,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:59:24,766 INFO L256 TraceCheckSpWp]: Trace formula consists of 269 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-24 01:59:24,779 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:59:24,812 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 450 trivial. 0 not checked. [2024-11-24 01:59:24,813 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 01:59:24,813 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [193523617] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:59:24,813 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-24 01:59:24,813 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-24 01:59:24,816 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [591174026] [2024-11-24 01:59:24,816 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:59:24,821 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-24 01:59:24,822 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:59:24,845 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-24 01:59:24,846 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-24 01:59:24,849 INFO L87 Difference]: Start difference. First operand has 82 states, 63 states have (on average 1.4444444444444444) internal successors, (91), 64 states have internal predecessors, (91), 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 18.0) internal successors, (36), 2 states have internal predecessors, (36), 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) [2024-11-24 01:59:24,883 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:59:24,884 INFO L93 Difference]: Finished difference Result 157 states and 256 transitions. [2024-11-24 01:59:24,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-24 01:59:24,886 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 18.0) internal successors, (36), 2 states have internal predecessors, (36), 2 states have call successors, (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 111 [2024-11-24 01:59:24,886 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:59:24,893 INFO L225 Difference]: With dead ends: 157 [2024-11-24 01:59:24,893 INFO L226 Difference]: Without dead ends: 78 [2024-11-24 01:59:24,897 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 112 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-24 01:59:24,900 INFO L435 NwaCegarLoop]: 116 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, 116 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 01:59:24,901 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 116 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 01:59:24,918 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2024-11-24 01:59:24,942 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 78. [2024-11-24 01:59:24,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78 states, 60 states have (on average 1.4) internal successors, (84), 60 states have internal predecessors, (84), 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) [2024-11-24 01:59:24,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 116 transitions. [2024-11-24 01:59:24,951 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 116 transitions. Word has length 111 [2024-11-24 01:59:24,952 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:59:24,952 INFO L471 AbstractCegarLoop]: Abstraction has 78 states and 116 transitions. [2024-11-24 01:59:24,953 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 18.0) internal successors, (36), 2 states have internal predecessors, (36), 2 states have call successors, (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) [2024-11-24 01:59:24,953 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 116 transitions. [2024-11-24 01:59:24,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-11-24 01:59:24,957 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:59:24,957 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] [2024-11-24 01:59:24,966 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08f1a576-8914-4104-a43c-5859e8ec80d2/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-24 01:59:25,158 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08f1a576-8914-4104-a43c-5859e8ec80d2/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-11-24 01:59:25,159 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:59:25,159 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:59:25,160 INFO L85 PathProgramCache]: Analyzing trace with hash -1522838246, now seen corresponding path program 1 times [2024-11-24 01:59:25,160 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:59:25,160 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1854890840] [2024-11-24 01:59:25,160 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:59:25,160 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:59:25,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:59:25,495 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-11-24 01:59:25,496 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:59:25,496 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1854890840] [2024-11-24 01:59:25,496 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1854890840] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:59:25,496 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:59:25,497 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 01:59:25,497 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2048644022] [2024-11-24 01:59:25,497 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:59:25,498 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 01:59:25,498 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:59:25,499 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 01:59:25,499 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 01:59:25,500 INFO L87 Difference]: Start difference. First operand 78 states and 116 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) [2024-11-24 01:59:25,626 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:59:25,626 INFO L93 Difference]: Finished difference Result 214 states and 319 transitions. [2024-11-24 01:59:25,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 01:59:25,627 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 [2024-11-24 01:59:25,627 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:59:25,629 INFO L225 Difference]: With dead ends: 214 [2024-11-24 01:59:25,629 INFO L226 Difference]: Without dead ends: 139 [2024-11-24 01:59:25,666 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 01:59:25,667 INFO L435 NwaCegarLoop]: 191 mSDtfsCounter, 101 mSDsluCounter, 78 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 101 SdHoareTripleChecker+Valid, 269 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-24 01:59:25,668 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [101 Valid, 269 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-24 01:59:25,671 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 139 states. [2024-11-24 01:59:25,691 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 139 to 99. [2024-11-24 01:59:25,692 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 99 states, 81 states have (on average 1.3950617283950617) internal successors, (113), 81 states have internal predecessors, (113), 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) [2024-11-24 01:59:25,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 145 transitions. [2024-11-24 01:59:25,696 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 145 transitions. Word has length 111 [2024-11-24 01:59:25,697 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:59:25,697 INFO L471 AbstractCegarLoop]: Abstraction has 99 states and 145 transitions. [2024-11-24 01:59:25,698 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) [2024-11-24 01:59:25,698 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 145 transitions. [2024-11-24 01:59:25,699 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-11-24 01:59:25,702 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:59:25,702 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] [2024-11-24 01:59:25,702 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-24 01:59:25,703 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:59:25,703 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:59:25,705 INFO L85 PathProgramCache]: Analyzing trace with hash 1492265372, now seen corresponding path program 1 times [2024-11-24 01:59:25,705 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:59:25,705 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1165554554] [2024-11-24 01:59:25,705 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:59:25,705 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:59:25,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:59:26,458 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-11-24 01:59:26,458 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:59:26,458 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1165554554] [2024-11-24 01:59:26,458 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1165554554] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:59:26,458 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:59:26,458 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-24 01:59:26,459 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1531390696] [2024-11-24 01:59:26,460 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:59:26,461 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-24 01:59:26,461 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:59:26,462 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-24 01:59:26,462 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-24 01:59:26,462 INFO L87 Difference]: Start difference. First operand 99 states and 145 transitions. Second operand has 5 states, 5 states have (on average 6.8) internal successors, (34), 5 states have internal predecessors, (34), 1 states have call successors, (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) [2024-11-24 01:59:26,902 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:59:26,902 INFO L93 Difference]: Finished difference Result 318 states and 470 transitions. [2024-11-24 01:59:26,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-24 01:59:26,903 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.8) internal successors, (34), 5 states have internal predecessors, (34), 1 states have call successors, (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 [2024-11-24 01:59:26,904 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:59:26,908 INFO L225 Difference]: With dead ends: 318 [2024-11-24 01:59:26,908 INFO L226 Difference]: Without dead ends: 222 [2024-11-24 01:59:26,909 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2024-11-24 01:59:26,913 INFO L435 NwaCegarLoop]: 153 mSDtfsCounter, 169 mSDsluCounter, 180 mSDsCounter, 0 mSdLazyCounter, 155 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 169 SdHoareTripleChecker+Valid, 333 SdHoareTripleChecker+Invalid, 157 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 155 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-24 01:59:26,913 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [169 Valid, 333 Invalid, 157 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 155 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-24 01:59:26,915 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 222 states. [2024-11-24 01:59:26,954 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 222 to 187. [2024-11-24 01:59:26,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 187 states, 152 states have (on average 1.381578947368421) internal successors, (210), 152 states have internal predecessors, (210), 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) [2024-11-24 01:59:26,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 187 states to 187 states and 274 transitions. [2024-11-24 01:59:26,960 INFO L78 Accepts]: Start accepts. Automaton has 187 states and 274 transitions. Word has length 111 [2024-11-24 01:59:26,964 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:59:26,964 INFO L471 AbstractCegarLoop]: Abstraction has 187 states and 274 transitions. [2024-11-24 01:59:26,965 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.8) internal successors, (34), 5 states have internal predecessors, (34), 1 states have call successors, (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) [2024-11-24 01:59:26,965 INFO L276 IsEmpty]: Start isEmpty. Operand 187 states and 274 transitions. [2024-11-24 01:59:26,967 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2024-11-24 01:59:26,967 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:59:26,967 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] [2024-11-24 01:59:26,968 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-24 01:59:26,972 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:59:26,972 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:59:26,972 INFO L85 PathProgramCache]: Analyzing trace with hash 1616387088, now seen corresponding path program 1 times [2024-11-24 01:59:26,973 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:59:26,973 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1867249697] [2024-11-24 01:59:26,973 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:59:26,973 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:59:27,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:59:27,926 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-11-24 01:59:27,926 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:59:27,926 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1867249697] [2024-11-24 01:59:27,926 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1867249697] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:59:27,927 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:59:27,927 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-24 01:59:27,927 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1362821479] [2024-11-24 01:59:27,927 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:59:27,928 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-24 01:59:27,928 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:59:27,929 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-24 01:59:27,929 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-24 01:59:27,929 INFO L87 Difference]: Start difference. First operand 187 states and 274 transitions. Second operand has 7 states, 7 states have (on average 5.0) internal successors, (35), 7 states have internal predecessors, (35), 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) [2024-11-24 01:59:28,611 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:59:28,611 INFO L93 Difference]: Finished difference Result 493 states and 717 transitions. [2024-11-24 01:59:28,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-24 01:59:28,614 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.0) internal successors, (35), 7 states have internal predecessors, (35), 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 112 [2024-11-24 01:59:28,616 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:59:28,620 INFO L225 Difference]: With dead ends: 493 [2024-11-24 01:59:28,620 INFO L226 Difference]: Without dead ends: 309 [2024-11-24 01:59:28,622 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2024-11-24 01:59:28,623 INFO L435 NwaCegarLoop]: 145 mSDtfsCounter, 174 mSDsluCounter, 331 mSDsCounter, 0 mSdLazyCounter, 231 mSolverCounterSat, 71 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 174 SdHoareTripleChecker+Valid, 476 SdHoareTripleChecker+Invalid, 302 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 71 IncrementalHoareTripleChecker+Valid, 231 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-24 01:59:28,623 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [174 Valid, 476 Invalid, 302 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [71 Valid, 231 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-24 01:59:28,629 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 309 states. [2024-11-24 01:59:28,686 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 309 to 285. [2024-11-24 01:59:28,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 285 states, 233 states have (on average 1.3304721030042919) internal successors, (310), 233 states have internal predecessors, (310), 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) [2024-11-24 01:59:28,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 285 states to 285 states and 406 transitions. [2024-11-24 01:59:28,695 INFO L78 Accepts]: Start accepts. Automaton has 285 states and 406 transitions. Word has length 112 [2024-11-24 01:59:28,697 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:59:28,698 INFO L471 AbstractCegarLoop]: Abstraction has 285 states and 406 transitions. [2024-11-24 01:59:28,698 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.0) internal successors, (35), 7 states have internal predecessors, (35), 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) [2024-11-24 01:59:28,698 INFO L276 IsEmpty]: Start isEmpty. Operand 285 states and 406 transitions. [2024-11-24 01:59:28,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2024-11-24 01:59:28,700 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:59:28,700 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] [2024-11-24 01:59:28,701 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-24 01:59:28,701 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:59:28,701 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:59:28,701 INFO L85 PathProgramCache]: Analyzing trace with hash 1230131058, now seen corresponding path program 1 times [2024-11-24 01:59:28,702 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:59:28,706 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1719426130] [2024-11-24 01:59:28,706 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:59:28,706 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:59:28,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:59:29,141 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-11-24 01:59:29,141 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:59:29,141 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1719426130] [2024-11-24 01:59:29,141 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1719426130] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:59:29,142 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:59:29,142 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-24 01:59:29,142 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [489145131] [2024-11-24 01:59:29,142 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:59:29,142 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-24 01:59:29,143 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:59:29,144 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-24 01:59:29,144 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-24 01:59:29,144 INFO L87 Difference]: Start difference. First operand 285 states and 406 transitions. Second operand has 5 states, 5 states have (on average 7.2) internal successors, (36), 5 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) [2024-11-24 01:59:29,729 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:59:29,729 INFO L93 Difference]: Finished difference Result 489 states and 704 transitions. [2024-11-24 01:59:29,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-24 01:59:29,732 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.2) internal successors, (36), 5 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 [2024-11-24 01:59:29,733 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:59:29,738 INFO L225 Difference]: With dead ends: 489 [2024-11-24 01:59:29,739 INFO L226 Difference]: Without dead ends: 393 [2024-11-24 01:59:29,740 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-24 01:59:29,741 INFO L435 NwaCegarLoop]: 211 mSDtfsCounter, 200 mSDsluCounter, 359 mSDsCounter, 0 mSdLazyCounter, 148 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 200 SdHoareTripleChecker+Valid, 570 SdHoareTripleChecker+Invalid, 180 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 148 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-24 01:59:29,743 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [200 Valid, 570 Invalid, 180 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 148 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-24 01:59:29,745 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 393 states. [2024-11-24 01:59:29,820 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 393 to 291. [2024-11-24 01:59:29,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 291 states, 239 states have (on average 1.3347280334728033) internal successors, (319), 239 states have internal predecessors, (319), 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) [2024-11-24 01:59:29,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 291 states to 291 states and 415 transitions. [2024-11-24 01:59:29,825 INFO L78 Accepts]: Start accepts. Automaton has 291 states and 415 transitions. Word has length 113 [2024-11-24 01:59:29,825 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:59:29,825 INFO L471 AbstractCegarLoop]: Abstraction has 291 states and 415 transitions. [2024-11-24 01:59:29,826 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.2) internal successors, (36), 5 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) [2024-11-24 01:59:29,826 INFO L276 IsEmpty]: Start isEmpty. Operand 291 states and 415 transitions. [2024-11-24 01:59:29,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2024-11-24 01:59:29,828 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:59:29,828 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] [2024-11-24 01:59:29,828 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-24 01:59:29,829 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:59:29,829 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:59:29,829 INFO L85 PathProgramCache]: Analyzing trace with hash -637727289, now seen corresponding path program 1 times [2024-11-24 01:59:29,829 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:59:29,829 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [287998331] [2024-11-24 01:59:29,830 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:59:29,830 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:59:29,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:59:30,426 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-11-24 01:59:30,427 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:59:30,427 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [287998331] [2024-11-24 01:59:30,427 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [287998331] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:59:30,427 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:59:30,431 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-24 01:59:30,431 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [864744439] [2024-11-24 01:59:30,431 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:59:30,432 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-24 01:59:30,432 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:59:30,433 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-24 01:59:30,433 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-24 01:59:30,433 INFO L87 Difference]: Start difference. First operand 291 states and 415 transitions. Second operand has 4 states, 4 states have (on average 9.0) internal successors, (36), 4 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) [2024-11-24 01:59:30,580 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:59:30,583 INFO L93 Difference]: Finished difference Result 612 states and 876 transitions. [2024-11-24 01:59:30,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-24 01:59:30,584 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.0) internal successors, (36), 4 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 [2024-11-24 01:59:30,585 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:59:30,587 INFO L225 Difference]: With dead ends: 612 [2024-11-24 01:59:30,590 INFO L226 Difference]: Without dead ends: 324 [2024-11-24 01:59:30,591 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-24 01:59:30,594 INFO L435 NwaCegarLoop]: 161 mSDtfsCounter, 89 mSDsluCounter, 222 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 89 SdHoareTripleChecker+Valid, 383 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 01:59:30,594 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [89 Valid, 383 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 01:59:30,596 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 324 states. [2024-11-24 01:59:30,675 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 324 to 291. [2024-11-24 01:59:30,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 291 states, 239 states have (on average 1.301255230125523) internal successors, (311), 239 states have internal predecessors, (311), 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) [2024-11-24 01:59:30,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 291 states to 291 states and 407 transitions. [2024-11-24 01:59:30,680 INFO L78 Accepts]: Start accepts. Automaton has 291 states and 407 transitions. Word has length 113 [2024-11-24 01:59:30,682 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:59:30,682 INFO L471 AbstractCegarLoop]: Abstraction has 291 states and 407 transitions. [2024-11-24 01:59:30,683 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.0) internal successors, (36), 4 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) [2024-11-24 01:59:30,683 INFO L276 IsEmpty]: Start isEmpty. Operand 291 states and 407 transitions. [2024-11-24 01:59:30,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2024-11-24 01:59:30,685 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:59:30,685 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] [2024-11-24 01:59:30,685 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-24 01:59:30,686 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:59:30,686 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:59:30,686 INFO L85 PathProgramCache]: Analyzing trace with hash -1092608958, now seen corresponding path program 1 times [2024-11-24 01:59:30,686 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:59:30,687 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1485135273] [2024-11-24 01:59:30,687 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:59:30,687 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:59:30,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:59:30,934 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-11-24 01:59:30,934 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:59:30,935 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1485135273] [2024-11-24 01:59:30,935 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1485135273] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:59:30,935 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:59:30,935 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 01:59:30,935 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [618380252] [2024-11-24 01:59:30,935 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:59:30,936 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 01:59:30,936 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:59:30,937 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 01:59:30,937 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 01:59:30,937 INFO L87 Difference]: Start difference. First operand 291 states and 407 transitions. Second operand has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 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) [2024-11-24 01:59:31,016 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:59:31,016 INFO L93 Difference]: Finished difference Result 581 states and 815 transitions. [2024-11-24 01:59:31,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 01:59:31,017 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 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 117 [2024-11-24 01:59:31,018 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:59:31,020 INFO L225 Difference]: With dead ends: 581 [2024-11-24 01:59:31,020 INFO L226 Difference]: Without dead ends: 293 [2024-11-24 01:59:31,022 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 [2024-11-24 01:59:31,022 INFO L435 NwaCegarLoop]: 114 mSDtfsCounter, 0 mSDsluCounter, 108 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 222 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 01:59:31,023 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 222 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 01:59:31,024 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 293 states. [2024-11-24 01:59:31,087 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 293 to 293. [2024-11-24 01:59:31,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 293 states, 241 states have (on average 1.2904564315352698) internal successors, (311), 241 states have internal predecessors, (311), 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) [2024-11-24 01:59:31,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 293 states to 293 states and 407 transitions. [2024-11-24 01:59:31,092 INFO L78 Accepts]: Start accepts. Automaton has 293 states and 407 transitions. Word has length 117 [2024-11-24 01:59:31,093 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:59:31,093 INFO L471 AbstractCegarLoop]: Abstraction has 293 states and 407 transitions. [2024-11-24 01:59:31,093 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 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) [2024-11-24 01:59:31,094 INFO L276 IsEmpty]: Start isEmpty. Operand 293 states and 407 transitions. [2024-11-24 01:59:31,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2024-11-24 01:59:31,096 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:59:31,096 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] [2024-11-24 01:59:31,096 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-24 01:59:31,096 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:59:31,097 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:59:31,097 INFO L85 PathProgramCache]: Analyzing trace with hash 1614010436, now seen corresponding path program 1 times [2024-11-24 01:59:31,097 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:59:31,097 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [989164475] [2024-11-24 01:59:31,098 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:59:31,098 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:59:31,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:59:31,462 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-11-24 01:59:31,462 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:59:31,462 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [989164475] [2024-11-24 01:59:31,462 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [989164475] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:59:31,462 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:59:31,462 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-24 01:59:31,462 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [718684574] [2024-11-24 01:59:31,462 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:59:31,463 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-24 01:59:31,463 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:59:31,464 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-24 01:59:31,464 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-24 01:59:31,464 INFO L87 Difference]: Start difference. First operand 293 states and 407 transitions. Second operand has 5 states, 5 states have (on average 8.0) internal successors, (40), 5 states have internal predecessors, (40), 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) [2024-11-24 01:59:32,412 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:59:32,412 INFO L93 Difference]: Finished difference Result 802 states and 1111 transitions. [2024-11-24 01:59:32,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-24 01:59:32,414 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.0) internal successors, (40), 5 states have internal predecessors, (40), 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 117 [2024-11-24 01:59:32,414 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:59:32,419 INFO L225 Difference]: With dead ends: 802 [2024-11-24 01:59:32,419 INFO L226 Difference]: Without dead ends: 698 [2024-11-24 01:59:32,420 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-11-24 01:59:32,421 INFO L435 NwaCegarLoop]: 153 mSDtfsCounter, 268 mSDsluCounter, 316 mSDsCounter, 0 mSdLazyCounter, 184 mSolverCounterSat, 145 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 268 SdHoareTripleChecker+Valid, 469 SdHoareTripleChecker+Invalid, 329 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 145 IncrementalHoareTripleChecker+Valid, 184 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-24 01:59:32,421 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [268 Valid, 469 Invalid, 329 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [145 Valid, 184 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-24 01:59:32,424 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 698 states. [2024-11-24 01:59:32,575 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 698 to 504. [2024-11-24 01:59:32,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 504 states, 418 states have (on average 1.291866028708134) internal successors, (540), 418 states have internal predecessors, (540), 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) [2024-11-24 01:59:32,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 504 states to 504 states and 700 transitions. [2024-11-24 01:59:32,582 INFO L78 Accepts]: Start accepts. Automaton has 504 states and 700 transitions. Word has length 117 [2024-11-24 01:59:32,583 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:59:32,583 INFO L471 AbstractCegarLoop]: Abstraction has 504 states and 700 transitions. [2024-11-24 01:59:32,583 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.0) internal successors, (40), 5 states have internal predecessors, (40), 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) [2024-11-24 01:59:32,583 INFO L276 IsEmpty]: Start isEmpty. Operand 504 states and 700 transitions. [2024-11-24 01:59:32,585 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2024-11-24 01:59:32,585 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:59:32,585 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] [2024-11-24 01:59:32,585 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-24 01:59:32,585 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:59:32,586 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:59:32,586 INFO L85 PathProgramCache]: Analyzing trace with hash 519944766, now seen corresponding path program 1 times [2024-11-24 01:59:32,586 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:59:32,586 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [175430974] [2024-11-24 01:59:32,586 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:59:32,586 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:59:32,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:59:43,195 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-11-24 01:59:43,196 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:59:43,196 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [175430974] [2024-11-24 01:59:43,196 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [175430974] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:59:43,196 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:59:43,197 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-24 01:59:43,198 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1108804679] [2024-11-24 01:59:43,198 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:59:43,198 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-24 01:59:43,198 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:59:43,199 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-24 01:59:43,200 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2024-11-24 01:59:43,201 INFO L87 Difference]: Start difference. First operand 504 states and 700 transitions. Second operand has 10 states, 10 states have (on average 4.0) internal successors, (40), 10 states have internal predecessors, (40), 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) [2024-11-24 01:59:47,134 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:59:47,134 INFO L93 Difference]: Finished difference Result 1146 states and 1558 transitions. [2024-11-24 01:59:47,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-24 01:59:47,136 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 4.0) internal successors, (40), 10 states have internal predecessors, (40), 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 117 [2024-11-24 01:59:47,136 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:59:47,141 INFO L225 Difference]: With dead ends: 1146 [2024-11-24 01:59:47,142 INFO L226 Difference]: Without dead ends: 954 [2024-11-24 01:59:47,145 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 5.5s TimeCoverageRelationStatistics Valid=60, Invalid=122, Unknown=0, NotChecked=0, Total=182 [2024-11-24 01:59:47,148 INFO L435 NwaCegarLoop]: 94 mSDtfsCounter, 297 mSDsluCounter, 279 mSDsCounter, 0 mSdLazyCounter, 345 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 297 SdHoareTripleChecker+Valid, 373 SdHoareTripleChecker+Invalid, 366 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 345 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-11-24 01:59:47,148 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [297 Valid, 373 Invalid, 366 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 345 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-11-24 01:59:47,150 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 954 states. [2024-11-24 01:59:47,333 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 954 to 879. [2024-11-24 01:59:47,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 879 states, 778 states have (on average 1.2982005141388175) internal successors, (1010), 783 states have internal predecessors, (1010), 90 states have call successors, (90), 10 states have call predecessors, (90), 10 states have return successors, (90), 85 states have call predecessors, (90), 90 states have call successors, (90) [2024-11-24 01:59:47,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 879 states to 879 states and 1190 transitions. [2024-11-24 01:59:47,342 INFO L78 Accepts]: Start accepts. Automaton has 879 states and 1190 transitions. Word has length 117 [2024-11-24 01:59:47,342 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:59:47,342 INFO L471 AbstractCegarLoop]: Abstraction has 879 states and 1190 transitions. [2024-11-24 01:59:47,343 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 4.0) internal successors, (40), 10 states have internal predecessors, (40), 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) [2024-11-24 01:59:47,343 INFO L276 IsEmpty]: Start isEmpty. Operand 879 states and 1190 transitions. [2024-11-24 01:59:47,344 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2024-11-24 01:59:47,345 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:59:47,345 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] [2024-11-24 01:59:47,345 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-24 01:59:47,345 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:59:47,346 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:59:47,346 INFO L85 PathProgramCache]: Analyzing trace with hash -1285493568, now seen corresponding path program 1 times [2024-11-24 01:59:47,346 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:59:47,346 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1287418704] [2024-11-24 01:59:47,346 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:59:47,347 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:59:47,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-24 01:59:47,434 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-24 01:59:47,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-24 01:59:47,561 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-24 01:59:47,561 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-11-24 01:59:47,563 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-24 01:59:47,565 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-24 01:59:47,569 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:59:47,664 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-24 01:59:47,672 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.11 01:59:47 BoogieIcfgContainer [2024-11-24 01:59:47,672 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-24 01:59:47,673 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-24 01:59:47,673 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-24 01:59:47,673 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-24 01:59:47,674 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 01:59:23" (3/4) ... [2024-11-24 01:59:47,677 INFO L149 WitnessPrinter]: No result that supports witness generation found [2024-11-24 01:59:47,678 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-24 01:59:47,680 INFO L158 Benchmark]: Toolchain (without parser) took 25369.96ms. Allocated memory was 117.4MB in the beginning and 268.4MB in the end (delta: 151.0MB). Free memory was 92.5MB in the beginning and 150.5MB in the end (delta: -58.1MB). Peak memory consumption was 94.2MB. Max. memory is 16.1GB. [2024-11-24 01:59:47,681 INFO L158 Benchmark]: CDTParser took 0.50ms. Allocated memory is still 117.4MB. Free memory is still 72.2MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-24 01:59:47,681 INFO L158 Benchmark]: CACSL2BoogieTranslator took 422.27ms. Allocated memory is still 117.4MB. Free memory was 92.2MB in the beginning and 78.3MB in the end (delta: 13.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-24 01:59:47,682 INFO L158 Benchmark]: Boogie Procedure Inliner took 82.04ms. Allocated memory is still 117.4MB. Free memory was 78.1MB in the beginning and 74.5MB in the end (delta: 3.6MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-24 01:59:47,683 INFO L158 Benchmark]: Boogie Preprocessor took 125.17ms. Allocated memory is still 117.4MB. Free memory was 74.5MB in the beginning and 68.9MB in the end (delta: 5.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-24 01:59:47,683 INFO L158 Benchmark]: RCFGBuilder took 894.48ms. Allocated memory is still 117.4MB. Free memory was 68.9MB in the beginning and 44.3MB in the end (delta: 24.6MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-11-24 01:59:47,685 INFO L158 Benchmark]: TraceAbstraction took 23830.33ms. Allocated memory was 117.4MB in the beginning and 268.4MB in the end (delta: 151.0MB). Free memory was 43.8MB in the beginning and 150.6MB in the end (delta: -106.7MB). Peak memory consumption was 43.8MB. Max. memory is 16.1GB. [2024-11-24 01:59:47,685 INFO L158 Benchmark]: Witness Printer took 5.77ms. Allocated memory is still 268.4MB. Free memory was 150.6MB in the beginning and 150.5MB in the end (delta: 35.3kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-24 01:59:47,688 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.50ms. Allocated memory is still 117.4MB. Free memory is still 72.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 422.27ms. Allocated memory is still 117.4MB. Free memory was 92.2MB in the beginning and 78.3MB in the end (delta: 13.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 82.04ms. Allocated memory is still 117.4MB. Free memory was 78.1MB in the beginning and 74.5MB in the end (delta: 3.6MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 125.17ms. Allocated memory is still 117.4MB. Free memory was 74.5MB in the beginning and 68.9MB in the end (delta: 5.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 894.48ms. Allocated memory is still 117.4MB. Free memory was 68.9MB in the beginning and 44.3MB in the end (delta: 24.6MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * TraceAbstraction took 23830.33ms. Allocated memory was 117.4MB in the beginning and 268.4MB in the end (delta: 151.0MB). Free memory was 43.8MB in the beginning and 150.6MB in the end (delta: -106.7MB). Peak memory consumption was 43.8MB. Max. memory is 16.1GB. * Witness Printer took 5.77ms. Allocated memory is still 268.4MB. Free memory was 150.6MB in the beginning and 150.5MB in the end (delta: 35.3kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 19]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 95, overapproximation of someBinaryFLOATComparisonOperation at line 122, overapproximation of someBinaryFLOATComparisonOperation at line 93, overapproximation of someBinaryFLOATComparisonOperation at line 43. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] unsigned long int var_1_1 = 2; [L23] signed long int var_1_5 = 5; [L24] unsigned char var_1_8 = 0; [L25] float var_1_9 = 128.6; [L26] float var_1_10 = 32.5; [L27] unsigned char var_1_11 = 16; [L28] unsigned char var_1_12 = 64; [L29] unsigned char var_1_13 = 4; [L30] unsigned char var_1_14 = 4; [L31] unsigned long int var_1_15 = 0; [L32] signed short int var_1_16 = 0; [L33] signed char var_1_17 = 1; [L34] signed char var_1_18 = -1; [L35] signed char var_1_19 = 0; [L36] signed long int var_1_20 = -64; [L37] unsigned char var_1_22 = 0; [L38] unsigned char var_1_23 = 0; [L39] signed long int last_1_var_1_5 = 5; VAL [isInitial=0, last_1_var_1_5=5, var_1_10=65/2, var_1_11=16, var_1_12=64, var_1_13=4, var_1_14=4, var_1_15=0, var_1_16=0, var_1_17=1, var_1_18=-1, var_1_19=0, var_1_1=2, var_1_20=-64, var_1_22=0, var_1_23=0, var_1_5=5, var_1_8=0, var_1_9=643/5] [L126] isInitial = 1 [L127] FCALL initially() [L129] CALL updateLastVariables() [L119] last_1_var_1_5 = var_1_5 VAL [isInitial=1, last_1_var_1_5=5, var_1_10=65/2, var_1_11=16, var_1_12=64, var_1_13=4, var_1_14=4, var_1_15=0, var_1_16=0, var_1_17=1, var_1_18=-1, var_1_19=0, var_1_1=2, var_1_20=-64, var_1_22=0, var_1_23=0, var_1_5=5, var_1_8=0, var_1_9=643/5] [L129] RET updateLastVariables() [L130] CALL updateVariables() [L92] var_1_9 = __VERIFIER_nondet_float() [L93] CALL assume_abort_if_not((var_1_9 >= -922337.2036854776000e+13F && var_1_9 <= -1.0e-20F) || (var_1_9 <= 9223372.036854776000e+12F && var_1_9 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_5=5, var_1_10=65/2, var_1_11=16, var_1_12=64, var_1_13=4, var_1_14=4, var_1_15=0, var_1_16=0, var_1_17=1, var_1_18=-1, var_1_19=0, var_1_1=2, var_1_20=-64, var_1_22=0, var_1_23=0, var_1_5=5, var_1_8=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_5=5, var_1_10=65/2, var_1_11=16, var_1_12=64, var_1_13=4, var_1_14=4, var_1_15=0, var_1_16=0, var_1_17=1, var_1_18=-1, var_1_19=0, var_1_1=2, var_1_20=-64, var_1_22=0, var_1_23=0, var_1_5=5, var_1_8=0] [L93] RET assume_abort_if_not((var_1_9 >= -922337.2036854776000e+13F && var_1_9 <= -1.0e-20F) || (var_1_9 <= 9223372.036854776000e+12F && var_1_9 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_5=5, var_1_10=65/2, var_1_11=16, var_1_12=64, var_1_13=4, var_1_14=4, var_1_15=0, var_1_16=0, var_1_17=1, var_1_18=-1, var_1_19=0, var_1_1=2, var_1_20=-64, var_1_22=0, var_1_23=0, var_1_5=5, var_1_8=0] [L94] var_1_10 = __VERIFIER_nondet_float() [L95] CALL assume_abort_if_not((var_1_10 >= -922337.2036854776000e+13F && var_1_10 <= -1.0e-20F) || (var_1_10 <= 9223372.036854776000e+12F && var_1_10 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_5=5, var_1_11=16, var_1_12=64, var_1_13=4, var_1_14=4, var_1_15=0, var_1_16=0, var_1_17=1, var_1_18=-1, var_1_19=0, var_1_1=2, var_1_20=-64, var_1_22=0, var_1_23=0, var_1_5=5, var_1_8=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_5=5, var_1_11=16, var_1_12=64, var_1_13=4, var_1_14=4, var_1_15=0, var_1_16=0, var_1_17=1, var_1_18=-1, var_1_19=0, var_1_1=2, var_1_20=-64, var_1_22=0, var_1_23=0, var_1_5=5, var_1_8=0] [L95] RET assume_abort_if_not((var_1_10 >= -922337.2036854776000e+13F && var_1_10 <= -1.0e-20F) || (var_1_10 <= 9223372.036854776000e+12F && var_1_10 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_5=5, var_1_11=16, var_1_12=64, var_1_13=4, var_1_14=4, var_1_15=0, var_1_16=0, var_1_17=1, var_1_18=-1, var_1_19=0, var_1_1=2, var_1_20=-64, var_1_22=0, var_1_23=0, var_1_5=5, var_1_8=0] [L96] var_1_11 = __VERIFIER_nondet_uchar() [L97] CALL assume_abort_if_not(var_1_11 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_5=5, var_1_12=64, var_1_13=4, var_1_14=4, var_1_15=0, var_1_16=0, var_1_17=1, var_1_18=-1, var_1_19=0, var_1_1=2, var_1_20=-64, var_1_22=0, var_1_23=0, var_1_5=5, var_1_8=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_5=5, var_1_12=64, var_1_13=4, var_1_14=4, var_1_15=0, var_1_16=0, var_1_17=1, var_1_18=-1, var_1_19=0, var_1_1=2, var_1_20=-64, var_1_22=0, var_1_23=0, var_1_5=5, var_1_8=0] [L97] RET assume_abort_if_not(var_1_11 >= 0) VAL [isInitial=1, last_1_var_1_5=5, var_1_12=64, var_1_13=4, var_1_14=4, var_1_15=0, var_1_16=0, var_1_17=1, var_1_18=-1, var_1_19=0, var_1_1=2, var_1_20=-64, var_1_22=0, var_1_23=0, var_1_5=5, var_1_8=0] [L98] CALL assume_abort_if_not(var_1_11 <= 127) VAL [\old(cond)=1, isInitial=1, last_1_var_1_5=5, var_1_11=127, var_1_12=64, var_1_13=4, var_1_14=4, var_1_15=0, var_1_16=0, var_1_17=1, var_1_18=-1, var_1_19=0, var_1_1=2, var_1_20=-64, var_1_22=0, var_1_23=0, var_1_5=5, var_1_8=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_5=5, var_1_11=127, var_1_12=64, var_1_13=4, var_1_14=4, var_1_15=0, var_1_16=0, var_1_17=1, var_1_18=-1, var_1_19=0, var_1_1=2, var_1_20=-64, var_1_22=0, var_1_23=0, var_1_5=5, var_1_8=0] [L98] RET assume_abort_if_not(var_1_11 <= 127) VAL [isInitial=1, last_1_var_1_5=5, var_1_11=127, var_1_12=64, var_1_13=4, var_1_14=4, var_1_15=0, var_1_16=0, var_1_17=1, var_1_18=-1, var_1_19=0, var_1_1=2, var_1_20=-64, var_1_22=0, var_1_23=0, var_1_5=5, var_1_8=0] [L99] var_1_12 = __VERIFIER_nondet_uchar() [L100] CALL assume_abort_if_not(var_1_12 >= 63) VAL [\old(cond)=1, isInitial=1, last_1_var_1_5=5, var_1_11=127, var_1_12=63, var_1_13=4, var_1_14=4, var_1_15=0, var_1_16=0, var_1_17=1, var_1_18=-1, var_1_19=0, var_1_1=2, var_1_20=-64, var_1_22=0, var_1_23=0, var_1_5=5, var_1_8=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_5=5, var_1_11=127, var_1_12=63, var_1_13=4, var_1_14=4, var_1_15=0, var_1_16=0, var_1_17=1, var_1_18=-1, var_1_19=0, var_1_1=2, var_1_20=-64, var_1_22=0, var_1_23=0, var_1_5=5, var_1_8=0] [L100] RET assume_abort_if_not(var_1_12 >= 63) VAL [isInitial=1, last_1_var_1_5=5, var_1_11=127, var_1_12=63, var_1_13=4, var_1_14=4, var_1_15=0, var_1_16=0, var_1_17=1, var_1_18=-1, var_1_19=0, var_1_1=2, var_1_20=-64, var_1_22=0, var_1_23=0, var_1_5=5, var_1_8=0] [L101] CALL assume_abort_if_not(var_1_12 <= 127) VAL [\old(cond)=1, isInitial=1, last_1_var_1_5=5, var_1_11=127, var_1_12=63, var_1_13=4, var_1_14=4, var_1_15=0, var_1_16=0, var_1_17=1, var_1_18=-1, var_1_19=0, var_1_1=2, var_1_20=-64, var_1_22=0, var_1_23=0, var_1_5=5, var_1_8=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_5=5, var_1_11=127, var_1_12=63, var_1_13=4, var_1_14=4, var_1_15=0, var_1_16=0, var_1_17=1, var_1_18=-1, var_1_19=0, var_1_1=2, var_1_20=-64, var_1_22=0, var_1_23=0, var_1_5=5, var_1_8=0] [L101] RET assume_abort_if_not(var_1_12 <= 127) VAL [isInitial=1, last_1_var_1_5=5, var_1_11=127, var_1_12=63, var_1_13=4, var_1_14=4, var_1_15=0, var_1_16=0, var_1_17=1, var_1_18=-1, var_1_19=0, var_1_1=2, var_1_20=-64, var_1_22=0, var_1_23=0, var_1_5=5, var_1_8=0] [L102] var_1_13 = __VERIFIER_nondet_uchar() [L103] CALL assume_abort_if_not(var_1_13 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_5=5, var_1_11=127, var_1_12=63, var_1_14=4, var_1_15=0, var_1_16=0, var_1_17=1, var_1_18=-1, var_1_19=0, var_1_1=2, var_1_20=-64, var_1_22=0, var_1_23=0, var_1_5=5, var_1_8=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_5=5, var_1_11=127, var_1_12=63, var_1_14=4, var_1_15=0, var_1_16=0, var_1_17=1, var_1_18=-1, var_1_19=0, var_1_1=2, var_1_20=-64, var_1_22=0, var_1_23=0, var_1_5=5, var_1_8=0] [L103] RET assume_abort_if_not(var_1_13 >= 0) VAL [isInitial=1, last_1_var_1_5=5, var_1_11=127, var_1_12=63, var_1_14=4, var_1_15=0, var_1_16=0, var_1_17=1, var_1_18=-1, var_1_19=0, var_1_1=2, var_1_20=-64, var_1_22=0, var_1_23=0, var_1_5=5, var_1_8=0] [L104] CALL assume_abort_if_not(var_1_13 <= 63) VAL [\old(cond)=1, isInitial=1, last_1_var_1_5=5, var_1_11=127, var_1_12=63, var_1_13=63, var_1_14=4, var_1_15=0, var_1_16=0, var_1_17=1, var_1_18=-1, var_1_19=0, var_1_1=2, var_1_20=-64, var_1_22=0, var_1_23=0, var_1_5=5, var_1_8=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_5=5, var_1_11=127, var_1_12=63, var_1_13=63, var_1_14=4, var_1_15=0, var_1_16=0, var_1_17=1, var_1_18=-1, var_1_19=0, var_1_1=2, var_1_20=-64, var_1_22=0, var_1_23=0, var_1_5=5, var_1_8=0] [L104] RET assume_abort_if_not(var_1_13 <= 63) VAL [isInitial=1, last_1_var_1_5=5, var_1_11=127, var_1_12=63, var_1_13=63, var_1_14=4, var_1_15=0, var_1_16=0, var_1_17=1, var_1_18=-1, var_1_19=0, var_1_1=2, var_1_20=-64, var_1_22=0, var_1_23=0, var_1_5=5, var_1_8=0] [L105] var_1_14 = __VERIFIER_nondet_uchar() [L106] CALL assume_abort_if_not(var_1_14 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_5=5, var_1_11=127, var_1_12=63, var_1_13=63, var_1_15=0, var_1_16=0, var_1_17=1, var_1_18=-1, var_1_19=0, var_1_1=2, var_1_20=-64, var_1_22=0, var_1_23=0, var_1_5=5, var_1_8=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_5=5, var_1_11=127, var_1_12=63, var_1_13=63, var_1_15=0, var_1_16=0, var_1_17=1, var_1_18=-1, var_1_19=0, var_1_1=2, var_1_20=-64, var_1_22=0, var_1_23=0, var_1_5=5, var_1_8=0] [L106] RET assume_abort_if_not(var_1_14 >= 0) VAL [isInitial=1, last_1_var_1_5=5, var_1_11=127, var_1_12=63, var_1_13=63, var_1_15=0, var_1_16=0, var_1_17=1, var_1_18=-1, var_1_19=0, var_1_1=2, var_1_20=-64, var_1_22=0, var_1_23=0, var_1_5=5, var_1_8=0] [L107] CALL assume_abort_if_not(var_1_14 <= 127) VAL [\old(cond)=1, isInitial=1, last_1_var_1_5=5, var_1_11=127, var_1_12=63, var_1_13=63, var_1_14=127, var_1_15=0, var_1_16=0, var_1_17=1, var_1_18=-1, var_1_19=0, var_1_1=2, var_1_20=-64, var_1_22=0, var_1_23=0, var_1_5=5, var_1_8=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_5=5, var_1_11=127, var_1_12=63, var_1_13=63, var_1_14=127, var_1_15=0, var_1_16=0, var_1_17=1, var_1_18=-1, var_1_19=0, var_1_1=2, var_1_20=-64, var_1_22=0, var_1_23=0, var_1_5=5, var_1_8=0] [L107] RET assume_abort_if_not(var_1_14 <= 127) VAL [isInitial=1, last_1_var_1_5=5, var_1_11=127, var_1_12=63, var_1_13=63, var_1_14=127, var_1_15=0, var_1_16=0, var_1_17=1, var_1_18=-1, var_1_19=0, var_1_1=2, var_1_20=-64, var_1_22=0, var_1_23=0, var_1_5=5, var_1_8=0] [L108] var_1_18 = __VERIFIER_nondet_char() [L109] CALL assume_abort_if_not(var_1_18 >= -31) VAL [\old(cond)=1, isInitial=1, last_1_var_1_5=5, var_1_11=127, var_1_12=63, var_1_13=63, var_1_14=127, var_1_15=0, var_1_16=0, var_1_17=1, var_1_18=0, var_1_19=0, var_1_1=2, var_1_20=-64, var_1_22=0, var_1_23=0, var_1_5=5, var_1_8=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_5=5, var_1_11=127, var_1_12=63, var_1_13=63, var_1_14=127, var_1_15=0, var_1_16=0, var_1_17=1, var_1_18=0, var_1_19=0, var_1_1=2, var_1_20=-64, var_1_22=0, var_1_23=0, var_1_5=5, var_1_8=0] [L109] RET assume_abort_if_not(var_1_18 >= -31) VAL [isInitial=1, last_1_var_1_5=5, var_1_11=127, var_1_12=63, var_1_13=63, var_1_14=127, var_1_15=0, var_1_16=0, var_1_17=1, var_1_18=0, var_1_19=0, var_1_1=2, var_1_20=-64, var_1_22=0, var_1_23=0, var_1_5=5, var_1_8=0] [L110] CALL assume_abort_if_not(var_1_18 <= 32) VAL [\old(cond)=1, isInitial=1, last_1_var_1_5=5, var_1_11=127, var_1_12=63, var_1_13=63, var_1_14=127, var_1_15=0, var_1_16=0, var_1_17=1, var_1_18=0, var_1_19=0, var_1_1=2, var_1_20=-64, var_1_22=0, var_1_23=0, var_1_5=5, var_1_8=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_5=5, var_1_11=127, var_1_12=63, var_1_13=63, var_1_14=127, var_1_15=0, var_1_16=0, var_1_17=1, var_1_18=0, var_1_19=0, var_1_1=2, var_1_20=-64, var_1_22=0, var_1_23=0, var_1_5=5, var_1_8=0] [L110] RET assume_abort_if_not(var_1_18 <= 32) VAL [isInitial=1, last_1_var_1_5=5, var_1_11=127, var_1_12=63, var_1_13=63, var_1_14=127, var_1_15=0, var_1_16=0, var_1_17=1, var_1_18=0, var_1_19=0, var_1_1=2, var_1_20=-64, var_1_22=0, var_1_23=0, var_1_5=5, var_1_8=0] [L111] var_1_19 = __VERIFIER_nondet_char() [L112] CALL assume_abort_if_not(var_1_19 >= -15) VAL [\old(cond)=1, isInitial=1, last_1_var_1_5=5, var_1_11=127, var_1_12=63, var_1_13=63, var_1_14=127, var_1_15=0, var_1_16=0, var_1_17=1, var_1_18=0, var_1_19=-15, var_1_1=2, var_1_20=-64, var_1_22=0, var_1_23=0, var_1_5=5, var_1_8=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_5=5, var_1_11=127, var_1_12=63, var_1_13=63, var_1_14=127, var_1_15=0, var_1_16=0, var_1_17=1, var_1_18=0, var_1_19=-15, var_1_1=2, var_1_20=-64, var_1_22=0, var_1_23=0, var_1_5=5, var_1_8=0] [L112] RET assume_abort_if_not(var_1_19 >= -15) VAL [isInitial=1, last_1_var_1_5=5, var_1_11=127, var_1_12=63, var_1_13=63, var_1_14=127, var_1_15=0, var_1_16=0, var_1_17=1, var_1_18=0, var_1_19=-15, var_1_1=2, var_1_20=-64, var_1_22=0, var_1_23=0, var_1_5=5, var_1_8=0] [L113] CALL assume_abort_if_not(var_1_19 <= 16) VAL [\old(cond)=1, isInitial=1, last_1_var_1_5=5, var_1_11=127, var_1_12=63, var_1_13=63, var_1_14=127, var_1_15=0, var_1_16=0, var_1_17=1, var_1_18=0, var_1_19=-15, var_1_1=2, var_1_20=-64, var_1_22=0, var_1_23=0, var_1_5=5, var_1_8=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_5=5, var_1_11=127, var_1_12=63, var_1_13=63, var_1_14=127, var_1_15=0, var_1_16=0, var_1_17=1, var_1_18=0, var_1_19=-15, var_1_1=2, var_1_20=-64, var_1_22=0, var_1_23=0, var_1_5=5, var_1_8=0] [L113] RET assume_abort_if_not(var_1_19 <= 16) VAL [isInitial=1, last_1_var_1_5=5, var_1_11=127, var_1_12=63, var_1_13=63, var_1_14=127, var_1_15=0, var_1_16=0, var_1_17=1, var_1_18=0, var_1_19=-15, var_1_1=2, var_1_20=-64, var_1_22=0, var_1_23=0, var_1_5=5, var_1_8=0] [L114] var_1_23 = __VERIFIER_nondet_uchar() [L115] CALL assume_abort_if_not(var_1_23 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_5=5, var_1_11=127, var_1_12=63, var_1_13=63, var_1_14=127, var_1_15=0, var_1_16=0, var_1_17=1, var_1_18=0, var_1_19=-15, var_1_1=2, var_1_20=-64, var_1_22=0, var_1_5=5, var_1_8=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_5=5, var_1_11=127, var_1_12=63, var_1_13=63, var_1_14=127, var_1_15=0, var_1_16=0, var_1_17=1, var_1_18=0, var_1_19=-15, var_1_1=2, var_1_20=-64, var_1_22=0, var_1_5=5, var_1_8=0] [L115] RET assume_abort_if_not(var_1_23 >= 0) VAL [isInitial=1, last_1_var_1_5=5, var_1_11=127, var_1_12=63, var_1_13=63, var_1_14=127, var_1_15=0, var_1_16=0, var_1_17=1, var_1_18=0, var_1_19=-15, var_1_1=2, var_1_20=-64, var_1_22=0, var_1_5=5, var_1_8=0] [L116] CALL assume_abort_if_not(var_1_23 <= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_5=5, var_1_11=127, var_1_12=63, var_1_13=63, var_1_14=127, var_1_15=0, var_1_16=0, var_1_17=1, var_1_18=0, var_1_19=-15, var_1_1=2, var_1_20=-64, var_1_22=0, var_1_23=0, var_1_5=5, var_1_8=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_5=5, var_1_11=127, var_1_12=63, var_1_13=63, var_1_14=127, var_1_15=0, var_1_16=0, var_1_17=1, var_1_18=0, var_1_19=-15, var_1_1=2, var_1_20=-64, var_1_22=0, var_1_23=0, var_1_5=5, var_1_8=0] [L116] RET assume_abort_if_not(var_1_23 <= 0) VAL [isInitial=1, last_1_var_1_5=5, var_1_11=127, var_1_12=63, var_1_13=63, var_1_14=127, var_1_15=0, var_1_16=0, var_1_17=1, var_1_18=0, var_1_19=-15, var_1_1=2, var_1_20=-64, var_1_22=0, var_1_23=0, var_1_5=5, var_1_8=0] [L130] RET updateVariables() [L131] CALL step() [L43] COND FALSE !(var_1_9 > var_1_10) VAL [isInitial=1, last_1_var_1_5=5, var_1_11=127, var_1_12=63, var_1_13=63, var_1_14=127, var_1_15=0, var_1_16=0, var_1_17=1, var_1_18=0, var_1_19=-15, var_1_1=2, var_1_20=-64, var_1_22=0, var_1_23=0, var_1_5=5, var_1_8=0] [L46] var_1_20 = var_1_8 [L47] var_1_22 = var_1_23 VAL [isInitial=1, last_1_var_1_5=5, var_1_11=127, var_1_12=63, var_1_13=63, var_1_14=127, var_1_15=0, var_1_16=0, var_1_17=1, var_1_18=0, var_1_19=-15, var_1_1=2, var_1_20=0, var_1_22=0, var_1_23=0, var_1_5=5, var_1_8=0] [L48] COND FALSE !(\read(var_1_22)) VAL [isInitial=1, last_1_var_1_5=5, var_1_11=127, var_1_12=63, var_1_13=63, var_1_14=127, var_1_15=0, var_1_16=0, var_1_17=1, var_1_18=0, var_1_19=-15, var_1_1=2, var_1_20=0, var_1_22=0, var_1_23=0, var_1_5=5, var_1_8=0] [L51] var_1_16 = (((((var_1_15) < (((((var_1_13) > (var_1_12)) ? (var_1_13) : (var_1_12))))) ? (var_1_15) : (((((var_1_13) > (var_1_12)) ? (var_1_13) : (var_1_12)))))) - var_1_11) VAL [isInitial=1, last_1_var_1_5=5, var_1_11=127, var_1_12=63, var_1_13=63, var_1_14=127, var_1_15=0, var_1_16=-127, var_1_17=1, var_1_18=0, var_1_19=-15, var_1_1=2, var_1_20=0, var_1_22=0, var_1_23=0, var_1_5=5, var_1_8=0] [L52] COND FALSE !(\read(var_1_22)) [L59] var_1_17 = -32 VAL [isInitial=1, last_1_var_1_5=5, var_1_11=127, var_1_12=63, var_1_13=63, var_1_14=127, var_1_15=0, var_1_16=-127, var_1_17=-32, var_1_18=0, var_1_19=-15, var_1_1=2, var_1_20=0, var_1_22=0, var_1_23=0, var_1_5=5, var_1_8=0] [L61] unsigned long int stepLocal_1 = var_1_20 + var_1_15; [L62] signed long int stepLocal_0 = var_1_20; VAL [isInitial=1, last_1_var_1_5=5, stepLocal_0=0, stepLocal_1=0, var_1_11=127, var_1_12=63, var_1_13=63, var_1_14=127, var_1_15=0, var_1_16=-127, var_1_17=-32, var_1_18=0, var_1_19=-15, var_1_1=2, var_1_20=0, var_1_22=0, var_1_23=0, var_1_5=5, var_1_8=0] [L63] COND TRUE stepLocal_1 < -200 VAL [isInitial=1, last_1_var_1_5=5, stepLocal_0=0, var_1_11=127, var_1_12=63, var_1_13=63, var_1_14=127, var_1_15=0, var_1_16=-127, var_1_17=-32, var_1_18=0, var_1_19=-15, var_1_1=2, var_1_20=0, var_1_22=0, var_1_23=0, var_1_5=5, var_1_8=0] [L64] COND FALSE !(\read(var_1_22)) [L71] var_1_1 = var_1_20 VAL [isInitial=1, last_1_var_1_5=5, stepLocal_0=0, var_1_11=127, var_1_12=63, var_1_13=63, var_1_14=127, var_1_15=0, var_1_16=-127, var_1_17=-32, var_1_18=0, var_1_19=-15, var_1_1=0, var_1_20=0, var_1_22=0, var_1_23=0, var_1_5=5, var_1_8=0] [L76] signed long int stepLocal_4 = 256; [L77] unsigned char stepLocal_3 = var_1_22; [L78] unsigned long int stepLocal_2 = var_1_15; VAL [isInitial=1, last_1_var_1_5=5, stepLocal_0=0, stepLocal_2=0, stepLocal_3=0, stepLocal_4=256, var_1_11=127, var_1_12=63, var_1_13=63, var_1_14=127, var_1_15=0, var_1_16=-127, var_1_17=-32, var_1_18=0, var_1_19=-15, var_1_1=0, var_1_20=0, var_1_22=0, var_1_23=0, var_1_5=5, var_1_8=0] [L79] COND FALSE !(stepLocal_4 > (var_1_15 - (last_1_var_1_5 + var_1_8))) VAL [isInitial=1, last_1_var_1_5=5, stepLocal_0=0, stepLocal_2=0, stepLocal_3=0, var_1_11=127, var_1_12=63, var_1_13=63, var_1_14=127, var_1_15=0, var_1_16=-127, var_1_17=-32, var_1_18=0, var_1_19=-15, var_1_1=0, var_1_20=0, var_1_22=0, var_1_23=0, var_1_5=5, var_1_8=0] [L82] COND FALSE !(stepLocal_3 || var_1_22) [L87] var_1_5 = -10000 VAL [isInitial=1, last_1_var_1_5=5, stepLocal_0=0, stepLocal_2=0, var_1_11=127, var_1_12=63, var_1_13=63, var_1_14=127, var_1_15=0, var_1_16=-127, var_1_17=-32, var_1_18=0, var_1_19=-15, var_1_1=0, var_1_20=0, var_1_22=0, var_1_23=0, var_1_5=-10000, var_1_8=0] [L131] RET step() [L132] CALL, EXPR property() [L122] EXPR (((var_1_20 + var_1_15) < -200) ? (var_1_22 ? ((var_1_20 > (- var_1_15)) ? (var_1_1 == ((unsigned long int) var_1_20)) : (var_1_1 == ((unsigned long int) var_1_20))) : (var_1_1 == ((unsigned long int) var_1_20))) : (var_1_1 == ((unsigned long int) var_1_20))) && ((256 > (var_1_15 - (last_1_var_1_5 + var_1_8))) ? (var_1_5 == ((signed long int) last_1_var_1_5)) : ((var_1_22 || var_1_22) ? ((((32 * -25) | last_1_var_1_5) >= var_1_15) ? (var_1_5 == ((signed long int) var_1_8)) : 1) : (var_1_5 == ((signed long int) -10000)))) VAL [isInitial=1, last_1_var_1_5=5, var_1_11=127, var_1_12=63, var_1_13=63, var_1_14=127, var_1_15=0, var_1_16=-127, var_1_17=-32, var_1_18=0, var_1_19=-15, var_1_1=0, var_1_20=0, var_1_22=0, var_1_23=0, var_1_5=-10000, var_1_8=0] [L122] EXPR (256 > (var_1_15 - (last_1_var_1_5 + var_1_8))) ? (var_1_5 == ((signed long int) last_1_var_1_5)) : ((var_1_22 || var_1_22) ? ((((32 * -25) | last_1_var_1_5) >= var_1_15) ? (var_1_5 == ((signed long int) var_1_8)) : 1) : (var_1_5 == ((signed long int) -10000))) VAL [isInitial=1, last_1_var_1_5=5, var_1_11=127, var_1_12=63, var_1_13=63, var_1_14=127, var_1_15=0, var_1_16=-127, var_1_17=-32, var_1_18=0, var_1_19=-15, var_1_1=0, var_1_20=0, var_1_22=0, var_1_23=0, var_1_5=-10000, var_1_8=0] [L122] EXPR (var_1_22 || var_1_22) ? ((((32 * -25) | last_1_var_1_5) >= var_1_15) ? (var_1_5 == ((signed long int) var_1_8)) : 1) : (var_1_5 == ((signed long int) -10000)) VAL [isInitial=1, last_1_var_1_5=5, var_1_11=127, var_1_12=63, var_1_13=63, var_1_14=127, var_1_15=0, var_1_16=-127, var_1_17=-32, var_1_18=0, var_1_19=-15, var_1_1=0, var_1_20=0, var_1_22=0, var_1_23=0, var_1_5=-10000, var_1_8=0] [L122] EXPR (256 > (var_1_15 - (last_1_var_1_5 + var_1_8))) ? (var_1_5 == ((signed long int) last_1_var_1_5)) : ((var_1_22 || var_1_22) ? ((((32 * -25) | last_1_var_1_5) >= var_1_15) ? (var_1_5 == ((signed long int) var_1_8)) : 1) : (var_1_5 == ((signed long int) -10000))) VAL [isInitial=1, last_1_var_1_5=5, var_1_11=127, var_1_12=63, var_1_13=63, var_1_14=127, var_1_15=0, var_1_16=-127, var_1_17=-32, var_1_18=0, var_1_19=-15, var_1_1=0, var_1_20=0, var_1_22=0, var_1_23=0, var_1_5=-10000, var_1_8=0] [L122] EXPR (((var_1_20 + var_1_15) < -200) ? (var_1_22 ? ((var_1_20 > (- var_1_15)) ? (var_1_1 == ((unsigned long int) var_1_20)) : (var_1_1 == ((unsigned long int) var_1_20))) : (var_1_1 == ((unsigned long int) var_1_20))) : (var_1_1 == ((unsigned long int) var_1_20))) && ((256 > (var_1_15 - (last_1_var_1_5 + var_1_8))) ? (var_1_5 == ((signed long int) last_1_var_1_5)) : ((var_1_22 || var_1_22) ? ((((32 * -25) | last_1_var_1_5) >= var_1_15) ? (var_1_5 == ((signed long int) var_1_8)) : 1) : (var_1_5 == ((signed long int) -10000)))) VAL [isInitial=1, last_1_var_1_5=5, var_1_11=127, var_1_12=63, var_1_13=63, var_1_14=127, var_1_15=0, var_1_16=-127, var_1_17=-32, var_1_18=0, var_1_19=-15, var_1_1=0, var_1_20=0, var_1_22=0, var_1_23=0, var_1_5=-10000, var_1_8=0] [L122] EXPR (((((((var_1_20 + var_1_15) < -200) ? (var_1_22 ? ((var_1_20 > (- var_1_15)) ? (var_1_1 == ((unsigned long int) var_1_20)) : (var_1_1 == ((unsigned long int) var_1_20))) : (var_1_1 == ((unsigned long int) var_1_20))) : (var_1_1 == ((unsigned long int) var_1_20))) && ((256 > (var_1_15 - (last_1_var_1_5 + var_1_8))) ? (var_1_5 == ((signed long int) last_1_var_1_5)) : ((var_1_22 || var_1_22) ? ((((32 * -25) | last_1_var_1_5) >= var_1_15) ? (var_1_5 == ((signed long int) var_1_8)) : 1) : (var_1_5 == ((signed long int) -10000))))) && ((var_1_9 > var_1_10) ? (var_1_8 == ((unsigned char) (((((var_1_11 + (var_1_12 - var_1_13))) < ((5 + var_1_14))) ? ((var_1_11 + (var_1_12 - var_1_13))) : ((5 + var_1_14)))))) : 1)) && (var_1_22 ? (var_1_15 == ((unsigned long int) var_1_8)) : 1)) && (var_1_16 == ((signed short int) (((((var_1_15) < (((((var_1_13) > (var_1_12)) ? (var_1_13) : (var_1_12))))) ? (var_1_15) : (((((var_1_13) > (var_1_12)) ? (var_1_13) : (var_1_12)))))) - var_1_11)))) && (var_1_22 ? ((var_1_14 < (var_1_13 & (var_1_15 / 2))) ? (var_1_17 == ((signed char) (var_1_13 + (var_1_18 + (var_1_19 + 5))))) : (var_1_17 == ((signed char) var_1_18))) : (var_1_17 == ((signed char) -32))) VAL [isInitial=1, last_1_var_1_5=5, var_1_11=127, var_1_12=63, var_1_13=63, var_1_14=127, var_1_15=0, var_1_16=-127, var_1_17=-32, var_1_18=0, var_1_19=-15, var_1_1=0, var_1_20=0, var_1_22=0, var_1_23=0, var_1_5=-10000, var_1_8=0] [L122-L123] return (((((((((var_1_20 + var_1_15) < -200) ? (var_1_22 ? ((var_1_20 > (- var_1_15)) ? (var_1_1 == ((unsigned long int) var_1_20)) : (var_1_1 == ((unsigned long int) var_1_20))) : (var_1_1 == ((unsigned long int) var_1_20))) : (var_1_1 == ((unsigned long int) var_1_20))) && ((256 > (var_1_15 - (last_1_var_1_5 + var_1_8))) ? (var_1_5 == ((signed long int) last_1_var_1_5)) : ((var_1_22 || var_1_22) ? ((((32 * -25) | last_1_var_1_5) >= var_1_15) ? (var_1_5 == ((signed long int) var_1_8)) : 1) : (var_1_5 == ((signed long int) -10000))))) && ((var_1_9 > var_1_10) ? (var_1_8 == ((unsigned char) (((((var_1_11 + (var_1_12 - var_1_13))) < ((5 + var_1_14))) ? ((var_1_11 + (var_1_12 - var_1_13))) : ((5 + var_1_14)))))) : 1)) && (var_1_22 ? (var_1_15 == ((unsigned long int) var_1_8)) : 1)) && (var_1_16 == ((signed short int) (((((var_1_15) < (((((var_1_13) > (var_1_12)) ? (var_1_13) : (var_1_12))))) ? (var_1_15) : (((((var_1_13) > (var_1_12)) ? (var_1_13) : (var_1_12)))))) - var_1_11)))) && (var_1_22 ? ((var_1_14 < (var_1_13 & (var_1_15 / 2))) ? (var_1_17 == ((signed char) (var_1_13 + (var_1_18 + (var_1_19 + 5))))) : (var_1_17 == ((signed char) var_1_18))) : (var_1_17 == ((signed char) -32)))) && (var_1_20 == ((signed long int) var_1_8))) && (var_1_22 == ((unsigned char) var_1_23)) ; [L132] RET, EXPR property() [L132] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [isInitial=1, last_1_var_1_5=5, var_1_11=127, var_1_12=63, var_1_13=63, var_1_14=127, var_1_15=0, var_1_16=-127, var_1_17=-32, var_1_18=0, var_1_19=-15, var_1_1=0, var_1_20=0, var_1_22=0, var_1_23=0, var_1_5=-10000, var_1_8=0] [L19] reach_error() VAL [isInitial=1, last_1_var_1_5=5, var_1_11=127, var_1_12=63, var_1_13=63, var_1_14=127, var_1_15=0, var_1_16=-127, var_1_17=-32, var_1_18=0, var_1_19=-15, var_1_1=0, var_1_20=0, var_1_22=0, var_1_23=0, var_1_5=-10000, var_1_8=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 82 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 23.6s, OverallIterations: 10, TraceHistogramMax: 16, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 7.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1298 SdHoareTripleChecker+Valid, 3.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1298 mSDsluCounter, 3211 SdHoareTripleChecker+Invalid, 3.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1873 mSDsCounter, 282 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1103 IncrementalHoareTripleChecker+Invalid, 1385 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 282 mSolverCounterUnsat, 1338 mSDtfsCounter, 1103 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 176 GetRequests, 137 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 5.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=879occurred in iteration=9, InterpolantAutomatonStates: 44, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.8s AutomataMinimizationTime, 9 MinimizatonAttempts, 503 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 13.9s InterpolantComputationTime, 1250 NumberOfCodeBlocks, 1250 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 1123 ConstructedInterpolants, 0 QuantifiedInterpolants, 10481 SizeOfPredicates, 0 NumberOfNonLiveVariables, 269 ConjunctsInSsa, 1 ConjunctsInUnsatCore, 10 InterpolantComputations, 9 PerfectInterpolantSequences, 4770/4800 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-11-24 01:59:47,727 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08f1a576-8914-4104-a43c-5859e8ec80d2/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_08f1a576-8914-4104-a43c-5859e8ec80d2/bin/uautomizer-verify-LYvppIcaGC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08f1a576-8914-4104-a43c-5859e8ec80d2/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_08f1a576-8914-4104-a43c-5859e8ec80d2/bin/uautomizer-verify-LYvppIcaGC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08f1a576-8914-4104-a43c-5859e8ec80d2/bin/uautomizer-verify-LYvppIcaGC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_normal_file-97.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08f1a576-8914-4104-a43c-5859e8ec80d2/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_08f1a576-8914-4104-a43c-5859e8ec80d2/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 bc5ff12f497c9d9181efc26f3b6e3906b64720260a6608e211112ba137d1de1e --- Real Ultimate output --- This is Ultimate 0.3.0-dev-6497de0 [2024-11-24 01:59:50,850 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-24 01:59:50,986 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08f1a576-8914-4104-a43c-5859e8ec80d2/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-11-24 01:59:50,994 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-24 01:59:50,994 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-24 01:59:51,023 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-24 01:59:51,024 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-24 01:59:51,024 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-24 01:59:51,024 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-24 01:59:51,025 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-24 01:59:51,025 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-24 01:59:51,025 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-24 01:59:51,025 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-24 01:59:51,025 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-24 01:59:51,026 INFO L153 SettingsManager]: * Use SBE=true [2024-11-24 01:59:51,026 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-24 01:59:51,026 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-24 01:59:51,028 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-24 01:59:51,028 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-24 01:59:51,028 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-24 01:59:51,028 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-24 01:59:51,028 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-24 01:59:51,028 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-24 01:59:51,028 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-24 01:59:51,029 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-24 01:59:51,029 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-24 01:59:51,029 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-24 01:59:51,029 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-24 01:59:51,029 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-24 01:59:51,029 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-24 01:59:51,029 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-24 01:59:51,029 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-24 01:59:51,030 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-24 01:59:51,030 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-24 01:59:51,030 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 01:59:51,030 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-24 01:59:51,030 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-24 01:59:51,030 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-24 01:59:51,030 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-24 01:59:51,030 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 01:59:51,031 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-24 01:59:51,031 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-24 01:59:51,033 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-24 01:59:51,034 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-24 01:59:51,034 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2024-11-24 01:59:51,034 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-24 01:59:51,034 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-24 01:59:51,035 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-24 01:59:51,035 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-24 01:59:51,035 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-24 01:59:51,035 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_08f1a576-8914-4104-a43c-5859e8ec80d2/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 -> bc5ff12f497c9d9181efc26f3b6e3906b64720260a6608e211112ba137d1de1e [2024-11-24 01:59:51,486 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-24 01:59:51,507 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-24 01:59:51,519 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-24 01:59:51,521 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-24 01:59:51,522 INFO L274 PluginConnector]: CDTParser initialized [2024-11-24 01:59:51,526 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08f1a576-8914-4104-a43c-5859e8ec80d2/bin/uautomizer-verify-LYvppIcaGC/../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_normal_file-97.i [2024-11-24 01:59:55,689 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08f1a576-8914-4104-a43c-5859e8ec80d2/bin/uautomizer-verify-LYvppIcaGC/data/4a3462dd4/55116729db0146c0b5daf22fa51e453f/FLAG2d2e985d4 [2024-11-24 01:59:56,052 INFO L384 CDTParser]: Found 1 translation units. [2024-11-24 01:59:56,053 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08f1a576-8914-4104-a43c-5859e8ec80d2/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_normal_file-97.i [2024-11-24 01:59:56,068 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08f1a576-8914-4104-a43c-5859e8ec80d2/bin/uautomizer-verify-LYvppIcaGC/data/4a3462dd4/55116729db0146c0b5daf22fa51e453f/FLAG2d2e985d4 [2024-11-24 01:59:56,096 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08f1a576-8914-4104-a43c-5859e8ec80d2/bin/uautomizer-verify-LYvppIcaGC/data/4a3462dd4/55116729db0146c0b5daf22fa51e453f [2024-11-24 01:59:56,099 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-24 01:59:56,101 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-24 01:59:56,103 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-24 01:59:56,103 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-24 01:59:56,108 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-24 01:59:56,109 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 01:59:56" (1/1) ... [2024-11-24 01:59:56,112 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@26fcd9ca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:59:56, skipping insertion in model container [2024-11-24 01:59:56,112 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 01:59:56" (1/1) ... [2024-11-24 01:59:56,138 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-24 01:59:56,356 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_08f1a576-8914-4104-a43c-5859e8ec80d2/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_normal_file-97.i[913,926] [2024-11-24 01:59:56,478 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 01:59:56,508 INFO L200 MainTranslator]: Completed pre-run [2024-11-24 01:59:56,523 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_08f1a576-8914-4104-a43c-5859e8ec80d2/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_normal_file-97.i[913,926] [2024-11-24 01:59:56,593 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 01:59:56,623 INFO L204 MainTranslator]: Completed translation [2024-11-24 01:59:56,624 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:59:56 WrapperNode [2024-11-24 01:59:56,625 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-24 01:59:56,626 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-24 01:59:56,626 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-24 01:59:56,626 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-24 01:59:56,636 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:59:56" (1/1) ... [2024-11-24 01:59:56,651 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:59:56" (1/1) ... [2024-11-24 01:59:56,684 INFO L138 Inliner]: procedures = 27, calls = 29, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 125 [2024-11-24 01:59:56,685 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-24 01:59:56,685 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-24 01:59:56,686 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-24 01:59:56,686 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-24 01:59:56,702 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:59:56" (1/1) ... [2024-11-24 01:59:56,702 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:59:56" (1/1) ... [2024-11-24 01:59:56,706 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:59:56" (1/1) ... [2024-11-24 01:59:56,721 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-24 01:59:56,722 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:59:56" (1/1) ... [2024-11-24 01:59:56,722 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:59:56" (1/1) ... [2024-11-24 01:59:56,733 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:59:56" (1/1) ... [2024-11-24 01:59:56,735 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:59:56" (1/1) ... [2024-11-24 01:59:56,739 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:59:56" (1/1) ... [2024-11-24 01:59:56,742 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:59:56" (1/1) ... [2024-11-24 01:59:56,744 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:59:56" (1/1) ... [2024-11-24 01:59:56,747 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-24 01:59:56,748 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-24 01:59:56,749 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-24 01:59:56,749 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-24 01:59:56,750 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:59:56" (1/1) ... [2024-11-24 01:59:56,761 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 01:59:56,781 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08f1a576-8914-4104-a43c-5859e8ec80d2/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:59:56,801 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08f1a576-8914-4104-a43c-5859e8ec80d2/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-24 01:59:56,809 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08f1a576-8914-4104-a43c-5859e8ec80d2/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-24 01:59:56,846 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-24 01:59:56,846 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-24 01:59:56,846 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-24 01:59:56,846 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-24 01:59:56,847 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-24 01:59:56,847 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-24 01:59:56,939 INFO L234 CfgBuilder]: Building ICFG [2024-11-24 01:59:56,942 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-24 01:59:57,395 INFO L? ?]: Removed 18 outVars from TransFormulas that were not future-live. [2024-11-24 01:59:57,395 INFO L283 CfgBuilder]: Performing block encoding [2024-11-24 01:59:57,412 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-24 01:59:57,412 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-24 01:59:57,416 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 01:59:57 BoogieIcfgContainer [2024-11-24 01:59:57,417 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-24 01:59:57,420 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-24 01:59:57,421 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-24 01:59:57,428 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-24 01:59:57,429 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 01:59:56" (1/3) ... [2024-11-24 01:59:57,430 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@67f2511d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 01:59:57, skipping insertion in model container [2024-11-24 01:59:57,430 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:59:56" (2/3) ... [2024-11-24 01:59:57,430 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@67f2511d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 01:59:57, skipping insertion in model container [2024-11-24 01:59:57,431 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 01:59:57" (3/3) ... [2024-11-24 01:59:57,436 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodestructure_normal_file-97.i [2024-11-24 01:59:57,458 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-24 01:59:57,461 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_fillercode_fillercodestructure_normal_file-97.i that has 2 procedures, 58 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-24 01:59:57,555 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-24 01:59:57,571 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;@373abce0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-24 01:59:57,571 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-24 01:59:57,576 INFO L276 IsEmpty]: Start isEmpty. Operand has 58 states, 39 states have (on average 1.3846153846153846) internal successors, (54), 40 states have internal predecessors, (54), 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) [2024-11-24 01:59:57,589 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2024-11-24 01:59:57,589 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:59:57,590 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] [2024-11-24 01:59:57,591 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:59:57,597 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:59:57,598 INFO L85 PathProgramCache]: Analyzing trace with hash 634659171, now seen corresponding path program 1 times [2024-11-24 01:59:57,611 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-24 01:59:57,612 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [434919104] [2024-11-24 01:59:57,612 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:59:57,613 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-24 01:59:57,613 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08f1a576-8914-4104-a43c-5859e8ec80d2/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-24 01:59:57,616 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08f1a576-8914-4104-a43c-5859e8ec80d2/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-24 01:59:57,621 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08f1a576-8914-4104-a43c-5859e8ec80d2/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2024-11-24 01:59:57,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:59:57,953 INFO L256 TraceCheckSpWp]: Trace formula consists of 181 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-24 01:59:57,962 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:59:58,033 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 134 proven. 0 refuted. 0 times theorem prover too weak. 346 trivial. 0 not checked. [2024-11-24 01:59:58,034 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 01:59:58,036 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-24 01:59:58,036 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [434919104] [2024-11-24 01:59:58,037 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [434919104] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:59:58,040 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:59:58,041 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-24 01:59:58,043 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [789441699] [2024-11-24 01:59:58,043 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:59:58,049 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-24 01:59:58,049 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-24 01:59:58,071 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-24 01:59:58,072 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-24 01:59:58,074 INFO L87 Difference]: Start difference. First operand has 58 states, 39 states have (on average 1.3846153846153846) internal successors, (54), 40 states have internal predecessors, (54), 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 17.0) internal successors, (34), 2 states have internal predecessors, (34), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-24 01:59:58,109 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:59:58,110 INFO L93 Difference]: Finished difference Result 109 states and 182 transitions. [2024-11-24 01:59:58,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-24 01:59:58,113 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 17.0) internal successors, (34), 2 states have internal predecessors, (34), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 107 [2024-11-24 01:59:58,113 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:59:58,121 INFO L225 Difference]: With dead ends: 109 [2024-11-24 01:59:58,121 INFO L226 Difference]: Without dead ends: 54 [2024-11-24 01:59:58,125 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 106 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-24 01:59:58,129 INFO L435 NwaCegarLoop]: 79 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, 79 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 01:59:58,130 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 79 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 01:59:58,150 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2024-11-24 01:59:58,184 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 54. [2024-11-24 01:59:58,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54 states, 36 states have (on average 1.3055555555555556) internal successors, (47), 36 states have internal predecessors, (47), 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) [2024-11-24 01:59:58,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 79 transitions. [2024-11-24 01:59:58,193 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 79 transitions. Word has length 107 [2024-11-24 01:59:58,194 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:59:58,194 INFO L471 AbstractCegarLoop]: Abstraction has 54 states and 79 transitions. [2024-11-24 01:59:58,194 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 17.0) internal successors, (34), 2 states have internal predecessors, (34), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-24 01:59:58,195 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 79 transitions. [2024-11-24 01:59:58,198 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2024-11-24 01:59:58,198 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:59:58,198 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] [2024-11-24 01:59:58,204 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08f1a576-8914-4104-a43c-5859e8ec80d2/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2024-11-24 01:59:58,399 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08f1a576-8914-4104-a43c-5859e8ec80d2/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-24 01:59:58,399 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:59:58,400 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:59:58,400 INFO L85 PathProgramCache]: Analyzing trace with hash 1931481759, now seen corresponding path program 1 times [2024-11-24 01:59:58,401 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-24 01:59:58,401 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [730463036] [2024-11-24 01:59:58,401 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:59:58,402 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-24 01:59:58,402 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08f1a576-8914-4104-a43c-5859e8ec80d2/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-24 01:59:58,404 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08f1a576-8914-4104-a43c-5859e8ec80d2/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-24 01:59:58,406 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08f1a576-8914-4104-a43c-5859e8ec80d2/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2024-11-24 01:59:58,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:59:58,619 INFO L256 TraceCheckSpWp]: Trace formula consists of 181 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-24 01:59:58,626 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:59:58,837 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 45 proven. 0 refuted. 0 times theorem prover too weak. 435 trivial. 0 not checked. [2024-11-24 01:59:58,837 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 01:59:58,837 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-24 01:59:58,837 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [730463036] [2024-11-24 01:59:58,838 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [730463036] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:59:58,838 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:59:58,838 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-24 01:59:58,838 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1737408294] [2024-11-24 01:59:58,838 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:59:58,841 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-24 01:59:58,841 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-24 01:59:58,844 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-24 01:59:58,844 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-24 01:59:58,844 INFO L87 Difference]: Start difference. First operand 54 states and 79 transitions. Second operand has 6 states, 6 states have (on average 5.5) internal successors, (33), 6 states have internal predecessors, (33), 1 states have call successors, (16), 1 states have call predecessors, (16), 2 states have return successors, (16), 2 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-24 01:59:59,430 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:59:59,430 INFO L93 Difference]: Finished difference Result 111 states and 158 transitions. [2024-11-24 01:59:59,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-24 01:59:59,432 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.5) internal successors, (33), 6 states have internal predecessors, (33), 1 states have call successors, (16), 1 states have call predecessors, (16), 2 states have return successors, (16), 2 states have call predecessors, (16), 1 states have call successors, (16) Word has length 107 [2024-11-24 01:59:59,433 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:59:59,435 INFO L225 Difference]: With dead ends: 111 [2024-11-24 01:59:59,438 INFO L226 Difference]: Without dead ends: 60 [2024-11-24 01:59:59,439 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 114 GetRequests, 103 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2024-11-24 01:59:59,440 INFO L435 NwaCegarLoop]: 47 mSDtfsCounter, 83 mSDsluCounter, 60 mSDsCounter, 0 mSdLazyCounter, 112 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 85 SdHoareTripleChecker+Valid, 107 SdHoareTripleChecker+Invalid, 176 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 112 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-24 01:59:59,440 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [85 Valid, 107 Invalid, 176 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 112 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-24 01:59:59,441 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2024-11-24 01:59:59,465 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 56. [2024-11-24 01:59:59,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56 states, 37 states have (on average 1.162162162162162) internal successors, (43), 37 states have internal predecessors, (43), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2024-11-24 01:59:59,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 75 transitions. [2024-11-24 01:59:59,470 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 75 transitions. Word has length 107 [2024-11-24 01:59:59,471 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:59:59,471 INFO L471 AbstractCegarLoop]: Abstraction has 56 states and 75 transitions. [2024-11-24 01:59:59,471 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.5) internal successors, (33), 6 states have internal predecessors, (33), 1 states have call successors, (16), 1 states have call predecessors, (16), 2 states have return successors, (16), 2 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-24 01:59:59,471 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 75 transitions. [2024-11-24 01:59:59,475 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2024-11-24 01:59:59,475 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:59:59,475 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] [2024-11-24 01:59:59,481 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08f1a576-8914-4104-a43c-5859e8ec80d2/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2024-11-24 01:59:59,676 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08f1a576-8914-4104-a43c-5859e8ec80d2/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-24 01:59:59,676 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:59:59,677 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:59:59,677 INFO L85 PathProgramCache]: Analyzing trace with hash -1662420959, now seen corresponding path program 1 times [2024-11-24 01:59:59,677 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-24 01:59:59,677 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [528796889] [2024-11-24 01:59:59,677 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:59:59,678 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-24 01:59:59,678 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08f1a576-8914-4104-a43c-5859e8ec80d2/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-24 01:59:59,680 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08f1a576-8914-4104-a43c-5859e8ec80d2/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-24 01:59:59,682 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08f1a576-8914-4104-a43c-5859e8ec80d2/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2024-11-24 01:59:59,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:59:59,892 INFO L256 TraceCheckSpWp]: Trace formula consists of 180 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-24 01:59:59,901 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 02:00:00,290 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-11-24 02:00:00,291 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 02:00:00,291 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-24 02:00:00,291 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [528796889] [2024-11-24 02:00:00,291 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [528796889] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 02:00:00,292 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 02:00:00,292 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-24 02:00:00,292 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [501898123] [2024-11-24 02:00:00,292 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 02:00:00,293 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-24 02:00:00,293 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-24 02:00:00,294 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-24 02:00:00,294 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-24 02:00:00,294 INFO L87 Difference]: Start difference. First operand 56 states and 75 transitions. Second operand has 5 states, 5 states have (on average 6.0) internal successors, (30), 4 states have internal predecessors, (30), 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) [2024-11-24 02:00:00,619 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 02:00:00,619 INFO L93 Difference]: Finished difference Result 146 states and 199 transitions. [2024-11-24 02:00:00,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-24 02:00:00,620 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.0) internal successors, (30), 4 states have internal predecessors, (30), 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 107 [2024-11-24 02:00:00,621 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 02:00:00,623 INFO L225 Difference]: With dead ends: 146 [2024-11-24 02:00:00,623 INFO L226 Difference]: Without dead ends: 93 [2024-11-24 02:00:00,624 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 103 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-24 02:00:00,625 INFO L435 NwaCegarLoop]: 112 mSDtfsCounter, 81 mSDsluCounter, 128 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 81 SdHoareTripleChecker+Valid, 240 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-24 02:00:00,625 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [81 Valid, 240 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-24 02:00:00,626 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2024-11-24 02:00:00,646 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 56. [2024-11-24 02:00:00,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56 states, 37 states have (on average 1.135135135135135) internal successors, (42), 37 states have internal predecessors, (42), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2024-11-24 02:00:00,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 74 transitions. [2024-11-24 02:00:00,649 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 74 transitions. Word has length 107 [2024-11-24 02:00:00,650 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 02:00:00,650 INFO L471 AbstractCegarLoop]: Abstraction has 56 states and 74 transitions. [2024-11-24 02:00:00,650 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.0) internal successors, (30), 4 states have internal predecessors, (30), 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) [2024-11-24 02:00:00,650 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 74 transitions. [2024-11-24 02:00:00,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2024-11-24 02:00:00,656 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 02:00:00,656 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] [2024-11-24 02:00:00,662 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08f1a576-8914-4104-a43c-5859e8ec80d2/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Ended with exit code 0 [2024-11-24 02:00:00,860 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08f1a576-8914-4104-a43c-5859e8ec80d2/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-24 02:00:00,862 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 02:00:00,864 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 02:00:00,867 INFO L85 PathProgramCache]: Analyzing trace with hash 1132663117, now seen corresponding path program 1 times [2024-11-24 02:00:00,867 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-24 02:00:00,868 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [288460426] [2024-11-24 02:00:00,868 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 02:00:00,868 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-24 02:00:00,868 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08f1a576-8914-4104-a43c-5859e8ec80d2/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-24 02:00:00,874 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08f1a576-8914-4104-a43c-5859e8ec80d2/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-24 02:00:00,877 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08f1a576-8914-4104-a43c-5859e8ec80d2/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2024-11-24 02:00:01,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 02:00:01,075 INFO L256 TraceCheckSpWp]: Trace formula consists of 181 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-24 02:00:01,084 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 02:00:02,170 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-11-24 02:00:02,171 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 02:00:02,171 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-24 02:00:02,171 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [288460426] [2024-11-24 02:00:02,171 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [288460426] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 02:00:02,171 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 02:00:02,171 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-24 02:00:02,172 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [378725881] [2024-11-24 02:00:02,172 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 02:00:02,173 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-24 02:00:02,173 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-24 02:00:02,174 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-24 02:00:02,174 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-24 02:00:02,175 INFO L87 Difference]: Start difference. First operand 56 states and 74 transitions. Second operand has 5 states, 5 states have (on average 6.2) internal successors, (31), 4 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) [2024-11-24 02:00:02,574 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 02:00:02,575 INFO L93 Difference]: Finished difference Result 169 states and 223 transitions. [2024-11-24 02:00:02,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-24 02:00:02,576 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 4 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 [2024-11-24 02:00:02,577 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 02:00:02,580 INFO L225 Difference]: With dead ends: 169 [2024-11-24 02:00:02,582 INFO L226 Difference]: Without dead ends: 116 [2024-11-24 02:00:02,583 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 104 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2024-11-24 02:00:02,584 INFO L435 NwaCegarLoop]: 68 mSDtfsCounter, 47 mSDsluCounter, 151 mSDsCounter, 0 mSdLazyCounter, 71 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 219 SdHoareTripleChecker+Invalid, 104 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 71 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-24 02:00:02,584 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 219 Invalid, 104 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 71 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-24 02:00:02,588 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states. [2024-11-24 02:00:02,645 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 107. [2024-11-24 02:00:02,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 107 states, 70 states have (on average 1.1285714285714286) internal successors, (79), 70 states have internal predecessors, (79), 32 states have call successors, (32), 4 states have call predecessors, (32), 4 states have return successors, (32), 32 states have call predecessors, (32), 32 states have call successors, (32) [2024-11-24 02:00:02,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 143 transitions. [2024-11-24 02:00:02,653 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 143 transitions. Word has length 108 [2024-11-24 02:00:02,654 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 02:00:02,654 INFO L471 AbstractCegarLoop]: Abstraction has 107 states and 143 transitions. [2024-11-24 02:00:02,654 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 4 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) [2024-11-24 02:00:02,654 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 143 transitions. [2024-11-24 02:00:02,656 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2024-11-24 02:00:02,656 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 02:00:02,657 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] [2024-11-24 02:00:02,667 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08f1a576-8914-4104-a43c-5859e8ec80d2/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2024-11-24 02:00:02,857 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08f1a576-8914-4104-a43c-5859e8ec80d2/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-24 02:00:02,857 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 02:00:02,858 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 02:00:02,858 INFO L85 PathProgramCache]: Analyzing trace with hash 808167104, now seen corresponding path program 1 times [2024-11-24 02:00:02,859 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-24 02:00:02,859 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [719781016] [2024-11-24 02:00:02,859 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 02:00:02,859 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-24 02:00:02,859 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08f1a576-8914-4104-a43c-5859e8ec80d2/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-24 02:00:02,861 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08f1a576-8914-4104-a43c-5859e8ec80d2/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-24 02:00:02,863 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08f1a576-8914-4104-a43c-5859e8ec80d2/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2024-11-24 02:00:03,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 02:00:03,069 INFO L256 TraceCheckSpWp]: Trace formula consists of 183 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-11-24 02:00:03,077 INFO L279 TraceCheckSpWp]: Computing forward predicates...