./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-90.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5b420e5-3ca2-462d-a45b-8e2fb1028f7c/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5b420e5-3ca2-462d-a45b-8e2fb1028f7c/bin/uautomizer-verify-aQ6SnzHsRB/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5b420e5-3ca2-462d-a45b-8e2fb1028f7c/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5b420e5-3ca2-462d-a45b-8e2fb1028f7c/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-90.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5b420e5-3ca2-462d-a45b-8e2fb1028f7c/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5b420e5-3ca2-462d-a45b-8e2fb1028f7c/bin/uautomizer-verify-aQ6SnzHsRB --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 5e76bf897418c531679e53fa28b7c04d453b1c5b37fbed71b943af641f77aed6 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 03:19:36,183 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 03:19:36,283 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5b420e5-3ca2-462d-a45b-8e2fb1028f7c/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-28 03:19:36,289 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 03:19:36,289 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 03:19:36,317 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 03:19:36,317 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 03:19:36,318 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 03:19:36,318 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 03:19:36,318 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 03:19:36,319 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 03:19:36,319 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 03:19:36,319 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 03:19:36,319 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 03:19:36,320 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 03:19:36,320 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 03:19:36,320 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-28 03:19:36,320 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-28 03:19:36,320 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-28 03:19:36,321 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-28 03:19:36,321 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 03:19:36,321 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-28 03:19:36,321 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 03:19:36,321 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-28 03:19:36,321 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-28 03:19:36,322 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-28 03:19:36,322 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 03:19:36,322 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 03:19:36,322 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 03:19:36,322 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 03:19:36,323 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 03:19:36,323 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 03:19:36,323 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 03:19:36,323 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 03:19:36,323 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 03:19:36,323 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 03:19:36,323 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 03:19:36,324 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 03:19:36,324 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 03:19:36,324 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 03:19:36,324 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-28 03:19:36,324 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-28 03:19:36,324 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-28 03:19:36,325 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-28 03:19:36,325 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 03:19:36,325 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 03:19:36,325 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 03:19:36,325 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 03:19:36,325 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_c5b420e5-3ca2-462d-a45b-8e2fb1028f7c/bin/uautomizer-verify-aQ6SnzHsRB Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5e76bf897418c531679e53fa28b7c04d453b1c5b37fbed71b943af641f77aed6 [2024-11-28 03:19:36,655 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 03:19:36,670 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 03:19:36,675 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 03:19:36,676 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 03:19:36,677 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 03:19:36,679 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5b420e5-3ca2-462d-a45b-8e2fb1028f7c/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-90.i [2024-11-28 03:19:39,974 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5b420e5-3ca2-462d-a45b-8e2fb1028f7c/bin/uautomizer-verify-aQ6SnzHsRB/data/3f950dff4/a9320ef2094745899b8ba05b29a7913e/FLAG46e6a965e [2024-11-28 03:19:40,359 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 03:19:40,360 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5b420e5-3ca2-462d-a45b-8e2fb1028f7c/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-90.i [2024-11-28 03:19:40,371 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5b420e5-3ca2-462d-a45b-8e2fb1028f7c/bin/uautomizer-verify-aQ6SnzHsRB/data/3f950dff4/a9320ef2094745899b8ba05b29a7913e/FLAG46e6a965e [2024-11-28 03:19:40,555 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5b420e5-3ca2-462d-a45b-8e2fb1028f7c/bin/uautomizer-verify-aQ6SnzHsRB/data/3f950dff4/a9320ef2094745899b8ba05b29a7913e [2024-11-28 03:19:40,558 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 03:19:40,560 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 03:19:40,562 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 03:19:40,562 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 03:19:40,569 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 03:19:40,570 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:19:40" (1/1) ... [2024-11-28 03:19:40,572 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3cd651dc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:19:40, skipping insertion in model container [2024-11-28 03:19:40,572 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:19:40" (1/1) ... [2024-11-28 03:19:40,595 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 03:19:40,744 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_c5b420e5-3ca2-462d-a45b-8e2fb1028f7c/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-90.i[915,928] [2024-11-28 03:19:40,809 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 03:19:40,822 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 03:19:40,833 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_c5b420e5-3ca2-462d-a45b-8e2fb1028f7c/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-90.i[915,928] [2024-11-28 03:19:40,852 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 03:19:40,868 INFO L204 MainTranslator]: Completed translation [2024-11-28 03:19:40,869 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:19:40 WrapperNode [2024-11-28 03:19:40,869 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 03:19:40,870 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 03:19:40,870 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 03:19:40,870 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 03:19:40,877 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:19:40" (1/1) ... [2024-11-28 03:19:40,889 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:19:40" (1/1) ... [2024-11-28 03:19:40,911 INFO L138 Inliner]: procedures = 26, calls = 30, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 141 [2024-11-28 03:19:40,912 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 03:19:40,912 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 03:19:40,912 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 03:19:40,912 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 03:19:40,922 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:19:40" (1/1) ... [2024-11-28 03:19:40,922 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:19:40" (1/1) ... [2024-11-28 03:19:40,925 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:19:40" (1/1) ... [2024-11-28 03:19:40,936 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]. [2024-11-28 03:19:40,936 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:19:40" (1/1) ... [2024-11-28 03:19:40,937 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:19:40" (1/1) ... [2024-11-28 03:19:40,941 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:19:40" (1/1) ... [2024-11-28 03:19:40,942 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:19:40" (1/1) ... [2024-11-28 03:19:40,946 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:19:40" (1/1) ... [2024-11-28 03:19:40,947 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:19:40" (1/1) ... [2024-11-28 03:19:40,948 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:19:40" (1/1) ... [2024-11-28 03:19:40,951 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 03:19:40,951 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 03:19:40,952 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 03:19:40,952 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 03:19:40,953 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:19:40" (1/1) ... [2024-11-28 03:19:40,959 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 03:19:40,973 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5b420e5-3ca2-462d-a45b-8e2fb1028f7c/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:19:40,993 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5b420e5-3ca2-462d-a45b-8e2fb1028f7c/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-28 03:19:41,001 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5b420e5-3ca2-462d-a45b-8e2fb1028f7c/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-28 03:19:41,025 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-28 03:19:41,026 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-28 03:19:41,026 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-28 03:19:41,027 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-28 03:19:41,027 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 03:19:41,027 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 03:19:41,110 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 03:19:41,112 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 03:19:41,422 INFO L? ?]: Removed 18 outVars from TransFormulas that were not future-live. [2024-11-28 03:19:41,422 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 03:19:41,432 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 03:19:41,432 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-28 03:19:41,433 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:19:41 BoogieIcfgContainer [2024-11-28 03:19:41,433 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 03:19:41,436 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-28 03:19:41,436 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-28 03:19:41,442 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-28 03:19:41,442 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 03:19:40" (1/3) ... [2024-11-28 03:19:41,443 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@bab1141 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:19:41, skipping insertion in model container [2024-11-28 03:19:41,443 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:19:40" (2/3) ... [2024-11-28 03:19:41,443 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@bab1141 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:19:41, skipping insertion in model container [2024-11-28 03:19:41,443 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:19:41" (3/3) ... [2024-11-28 03:19:41,445 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_loopvsstraightlinecode_25-while_file-90.i [2024-11-28 03:19:41,462 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-28 03:19:41,464 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_loopvsstraightlinecode_25-while_file-90.i that has 2 procedures, 62 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-28 03:19:41,549 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 03:19:41,567 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;@258f95ea, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 03:19:41,568 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-28 03:19:41,573 INFO L276 IsEmpty]: Start isEmpty. Operand has 62 states, 42 states have (on average 1.3571428571428572) internal successors, (57), 43 states have internal predecessors, (57), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-11-28 03:19:41,584 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2024-11-28 03:19:41,584 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:19:41,585 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:19:41,585 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:19:41,590 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:19:41,590 INFO L85 PathProgramCache]: Analyzing trace with hash -2023651706, now seen corresponding path program 1 times [2024-11-28 03:19:41,596 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:19:41,596 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1161015116] [2024-11-28 03:19:41,597 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:19:41,597 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:19:41,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:19:41,951 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 32 refuted. 0 times theorem prover too weak. 512 trivial. 0 not checked. [2024-11-28 03:19:41,951 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:19:41,952 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1161015116] [2024-11-28 03:19:41,953 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1161015116] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:19:41,953 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [520492373] [2024-11-28 03:19:41,953 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:19:41,953 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:19:41,953 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5b420e5-3ca2-462d-a45b-8e2fb1028f7c/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:19:41,961 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5b420e5-3ca2-462d-a45b-8e2fb1028f7c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:19:41,966 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5b420e5-3ca2-462d-a45b-8e2fb1028f7c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-28 03:19:42,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:19:42,209 INFO L256 TraceCheckSpWp]: Trace formula consists of 258 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-28 03:19:42,225 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:19:42,256 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 512 trivial. 0 not checked. [2024-11-28 03:19:42,256 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 03:19:42,256 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [520492373] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:19:42,257 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 03:19:42,257 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-28 03:19:42,259 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [632866692] [2024-11-28 03:19:42,259 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:19:42,264 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-28 03:19:42,264 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:19:42,284 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-28 03:19:42,284 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-28 03:19:42,286 INFO L87 Difference]: Start difference. First operand has 62 states, 42 states have (on average 1.3571428571428572) internal successors, (57), 43 states have internal predecessors, (57), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) Second operand has 2 states, 2 states have (on average 14.5) internal successors, (29), 2 states have internal predecessors, (29), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-28 03:19:42,321 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:19:42,323 INFO L93 Difference]: Finished difference Result 117 states and 193 transitions. [2024-11-28 03:19:42,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-28 03:19:42,326 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 14.5) internal successors, (29), 2 states have internal predecessors, (29), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) Word has length 109 [2024-11-28 03:19:42,327 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:19:42,334 INFO L225 Difference]: With dead ends: 117 [2024-11-28 03:19:42,334 INFO L226 Difference]: Without dead ends: 58 [2024-11-28 03:19:42,337 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 110 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-28 03:19:42,340 INFO L435 NwaCegarLoop]: 84 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, 84 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 [2024-11-28 03:19:42,341 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 84 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 03:19:42,355 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2024-11-28 03:19:42,374 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 58. [2024-11-28 03:19:42,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58 states, 39 states have (on average 1.2820512820512822) internal successors, (50), 39 states have internal predecessors, (50), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-11-28 03:19:42,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 84 transitions. [2024-11-28 03:19:42,382 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 84 transitions. Word has length 109 [2024-11-28 03:19:42,382 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:19:42,382 INFO L471 AbstractCegarLoop]: Abstraction has 58 states and 84 transitions. [2024-11-28 03:19:42,382 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 14.5) internal successors, (29), 2 states have internal predecessors, (29), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-28 03:19:42,383 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 84 transitions. [2024-11-28 03:19:42,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2024-11-28 03:19:42,385 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:19:42,386 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:19:42,393 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5b420e5-3ca2-462d-a45b-8e2fb1028f7c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-28 03:19:42,587 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5b420e5-3ca2-462d-a45b-8e2fb1028f7c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:19:42,588 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:19:42,589 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:19:42,589 INFO L85 PathProgramCache]: Analyzing trace with hash 1837775300, now seen corresponding path program 1 times [2024-11-28 03:19:42,589 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:19:42,589 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [254015508] [2024-11-28 03:19:42,589 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:19:42,589 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:19:42,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:19:43,645 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-28 03:19:43,645 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:19:43,646 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [254015508] [2024-11-28 03:19:43,646 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [254015508] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:19:43,646 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:19:43,646 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 03:19:43,647 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1903486649] [2024-11-28 03:19:43,647 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:19:43,648 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 03:19:43,648 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:19:43,649 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 03:19:43,650 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-28 03:19:43,650 INFO L87 Difference]: Start difference. First operand 58 states and 84 transitions. Second operand has 6 states, 6 states have (on average 4.5) internal successors, (27), 6 states have internal predecessors, (27), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-28 03:19:44,286 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:19:44,286 INFO L93 Difference]: Finished difference Result 199 states and 292 transitions. [2024-11-28 03:19:44,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 03:19:44,288 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.5) internal successors, (27), 6 states have internal predecessors, (27), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 109 [2024-11-28 03:19:44,289 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:19:44,295 INFO L225 Difference]: With dead ends: 199 [2024-11-28 03:19:44,298 INFO L226 Difference]: Without dead ends: 144 [2024-11-28 03:19:44,300 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-28 03:19:44,301 INFO L435 NwaCegarLoop]: 130 mSDtfsCounter, 148 mSDsluCounter, 336 mSDsCounter, 0 mSdLazyCounter, 79 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 148 SdHoareTripleChecker+Valid, 466 SdHoareTripleChecker+Invalid, 83 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 79 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-28 03:19:44,301 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [148 Valid, 466 Invalid, 83 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 79 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-28 03:19:44,304 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144 states. [2024-11-28 03:19:44,334 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144 to 67. [2024-11-28 03:19:44,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 67 states, 48 states have (on average 1.3125) internal successors, (63), 48 states have internal predecessors, (63), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-11-28 03:19:44,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 97 transitions. [2024-11-28 03:19:44,341 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 97 transitions. Word has length 109 [2024-11-28 03:19:44,343 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:19:44,344 INFO L471 AbstractCegarLoop]: Abstraction has 67 states and 97 transitions. [2024-11-28 03:19:44,344 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.5) internal successors, (27), 6 states have internal predecessors, (27), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-28 03:19:44,344 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 97 transitions. [2024-11-28 03:19:44,346 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2024-11-28 03:19:44,350 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:19:44,350 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:19:44,350 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-28 03:19:44,351 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:19:44,351 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:19:44,351 INFO L85 PathProgramCache]: Analyzing trace with hash 2124806660, now seen corresponding path program 1 times [2024-11-28 03:19:44,352 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:19:44,352 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [959175477] [2024-11-28 03:19:44,352 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:19:44,352 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:19:44,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:19:44,869 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-28 03:19:44,872 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:19:44,872 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [959175477] [2024-11-28 03:19:44,872 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [959175477] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:19:44,872 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:19:44,873 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 03:19:44,873 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1997742223] [2024-11-28 03:19:44,873 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:19:44,873 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 03:19:44,873 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:19:44,875 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 03:19:44,875 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 03:19:44,876 INFO L87 Difference]: Start difference. First operand 67 states and 97 transitions. Second operand has 5 states, 5 states have (on average 5.4) internal successors, (27), 5 states have internal predecessors, (27), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-28 03:19:45,002 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:19:45,002 INFO L93 Difference]: Finished difference Result 176 states and 255 transitions. [2024-11-28 03:19:45,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 03:19:45,004 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.4) internal successors, (27), 5 states have internal predecessors, (27), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 109 [2024-11-28 03:19:45,004 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:19:45,006 INFO L225 Difference]: With dead ends: 176 [2024-11-28 03:19:45,006 INFO L226 Difference]: Without dead ends: 112 [2024-11-28 03:19:45,010 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-28 03:19:45,012 INFO L435 NwaCegarLoop]: 155 mSDtfsCounter, 73 mSDsluCounter, 370 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 73 SdHoareTripleChecker+Valid, 525 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 03:19:45,014 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [73 Valid, 525 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 03:19:45,016 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112 states. [2024-11-28 03:19:45,031 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112 to 59. [2024-11-28 03:19:45,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59 states, 40 states have (on average 1.225) internal successors, (49), 40 states have internal predecessors, (49), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-11-28 03:19:45,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 83 transitions. [2024-11-28 03:19:45,039 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 83 transitions. Word has length 109 [2024-11-28 03:19:45,040 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:19:45,040 INFO L471 AbstractCegarLoop]: Abstraction has 59 states and 83 transitions. [2024-11-28 03:19:45,040 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.4) internal successors, (27), 5 states have internal predecessors, (27), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-28 03:19:45,040 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 83 transitions. [2024-11-28 03:19:45,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-11-28 03:19:45,044 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:19:45,044 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:19:45,045 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-28 03:19:45,045 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:19:45,046 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:19:45,047 INFO L85 PathProgramCache]: Analyzing trace with hash 867786670, now seen corresponding path program 1 times [2024-11-28 03:19:45,047 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:19:45,047 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1727675243] [2024-11-28 03:19:45,047 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:19:45,048 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:19:45,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 03:19:45,251 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 03:19:45,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 03:19:45,442 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-28 03:19:45,442 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-11-28 03:19:45,444 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-28 03:19:45,446 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-28 03:19:45,451 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-28 03:19:45,582 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-28 03:19:45,588 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 03:19:45 BoogieIcfgContainer [2024-11-28 03:19:45,588 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-28 03:19:45,589 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-28 03:19:45,589 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-28 03:19:45,591 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-28 03:19:45,592 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:19:41" (3/4) ... [2024-11-28 03:19:45,595 INFO L149 WitnessPrinter]: No result that supports witness generation found [2024-11-28 03:19:45,597 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-28 03:19:45,599 INFO L158 Benchmark]: Toolchain (without parser) took 5037.71ms. Allocated memory was 117.4MB in the beginning and 352.3MB in the end (delta: 234.9MB). Free memory was 92.6MB in the beginning and 159.0MB in the end (delta: -66.4MB). Peak memory consumption was 165.3MB. Max. memory is 16.1GB. [2024-11-28 03:19:45,599 INFO L158 Benchmark]: CDTParser took 0.85ms. Allocated memory is still 167.8MB. Free memory is still 102.8MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 03:19:45,600 INFO L158 Benchmark]: CACSL2BoogieTranslator took 307.18ms. Allocated memory is still 117.4MB. Free memory was 92.6MB in the beginning and 79.9MB in the end (delta: 12.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-28 03:19:45,601 INFO L158 Benchmark]: Boogie Procedure Inliner took 41.81ms. Allocated memory is still 117.4MB. Free memory was 79.9MB in the beginning and 78.2MB in the end (delta: 1.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-28 03:19:45,601 INFO L158 Benchmark]: Boogie Preprocessor took 38.64ms. Allocated memory is still 117.4MB. Free memory was 78.2MB in the beginning and 76.3MB in the end (delta: 1.9MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 03:19:45,601 INFO L158 Benchmark]: RCFGBuilder took 481.74ms. Allocated memory is still 117.4MB. Free memory was 75.9MB in the beginning and 59.6MB in the end (delta: 16.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-28 03:19:45,602 INFO L158 Benchmark]: TraceAbstraction took 4152.71ms. Allocated memory was 117.4MB in the beginning and 352.3MB in the end (delta: 234.9MB). Free memory was 58.8MB in the beginning and 159.7MB in the end (delta: -100.9MB). Peak memory consumption was 131.7MB. Max. memory is 16.1GB. [2024-11-28 03:19:45,602 INFO L158 Benchmark]: Witness Printer took 7.52ms. Allocated memory is still 352.3MB. Free memory was 159.7MB in the beginning and 159.0MB in the end (delta: 680.3kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 03:19:45,607 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.85ms. Allocated memory is still 167.8MB. Free memory is still 102.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 307.18ms. Allocated memory is still 117.4MB. Free memory was 92.6MB in the beginning and 79.9MB in the end (delta: 12.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 41.81ms. Allocated memory is still 117.4MB. Free memory was 79.9MB in the beginning and 78.2MB in the end (delta: 1.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 38.64ms. Allocated memory is still 117.4MB. Free memory was 78.2MB in the beginning and 76.3MB in the end (delta: 1.9MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 481.74ms. Allocated memory is still 117.4MB. Free memory was 75.9MB in the beginning and 59.6MB in the end (delta: 16.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 4152.71ms. Allocated memory was 117.4MB in the beginning and 352.3MB in the end (delta: 234.9MB). Free memory was 58.8MB in the beginning and 159.7MB in the end (delta: -100.9MB). Peak memory consumption was 131.7MB. Max. memory is 16.1GB. * Witness Printer took 7.52ms. Allocated memory is still 352.3MB. Free memory was 159.7MB in the beginning and 159.0MB in the end (delta: 680.3kB). 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 someBinaryDOUBLEComparisonOperation at line 97, overapproximation of someBinaryDOUBLEComparisonOperation at line 91. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] signed short int var_1_1 = 25; [L23] unsigned long int var_1_6 = 2; [L24] unsigned long int var_1_7 = 2762957886; [L25] unsigned long int var_1_8 = 2; [L26] unsigned long int var_1_9 = 1000000000; [L27] unsigned long int var_1_10 = 100; [L28] signed char var_1_11 = 4; [L29] signed char var_1_12 = 8; [L30] signed char var_1_13 = 10; [L31] signed char var_1_14 = 8; [L32] unsigned char var_1_15 = 1; [L33] unsigned char var_1_16 = 0; [L34] double var_1_17 = 32.4; [L35] double var_1_18 = 15.5; [L36] unsigned long int last_1_var_1_6 = 2; VAL [isInitial=0, last_1_var_1_6=2, var_1_10=100, var_1_11=4, var_1_12=8, var_1_13=10, var_1_14=8, var_1_15=1, var_1_16=0, var_1_17=162/5, var_1_18=31/2, var_1_1=25, var_1_6=2, var_1_7=2762957886, var_1_8=2, var_1_9=1000000000] [L101] isInitial = 1 [L102] FCALL initially() [L104] CALL updateLastVariables() [L94] last_1_var_1_6 = var_1_6 VAL [isInitial=1, last_1_var_1_6=2, var_1_10=100, var_1_11=4, var_1_12=8, var_1_13=10, var_1_14=8, var_1_15=1, var_1_16=0, var_1_17=162/5, var_1_18=31/2, var_1_1=25, var_1_6=2, var_1_7=2762957886, var_1_8=2, var_1_9=1000000000] [L104] RET updateLastVariables() [L105] CALL updateVariables() [L66] var_1_7 = __VERIFIER_nondet_ulong() [L67] CALL assume_abort_if_not(var_1_7 >= 2147483647) VAL [\old(cond)=1, isInitial=1, last_1_var_1_6=2, var_1_10=100, var_1_11=4, var_1_12=8, var_1_13=10, var_1_14=8, var_1_15=1, var_1_16=0, var_1_17=162/5, var_1_18=31/2, var_1_1=25, var_1_6=2, var_1_7=6442450943, var_1_8=2, var_1_9=1000000000] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_6=2, var_1_10=100, var_1_11=4, var_1_12=8, var_1_13=10, var_1_14=8, var_1_15=1, var_1_16=0, var_1_17=162/5, var_1_18=31/2, var_1_1=25, var_1_6=2, var_1_7=6442450943, var_1_8=2, var_1_9=1000000000] [L67] RET assume_abort_if_not(var_1_7 >= 2147483647) VAL [isInitial=1, last_1_var_1_6=2, var_1_10=100, var_1_11=4, var_1_12=8, var_1_13=10, var_1_14=8, var_1_15=1, var_1_16=0, var_1_17=162/5, var_1_18=31/2, var_1_1=25, var_1_6=2, var_1_7=6442450943, var_1_8=2, var_1_9=1000000000] [L68] CALL assume_abort_if_not(var_1_7 <= 4294967295) VAL [\old(cond)=1, isInitial=1, last_1_var_1_6=2, var_1_10=100, var_1_11=4, var_1_12=8, var_1_13=10, var_1_14=8, var_1_15=1, var_1_16=0, var_1_17=162/5, var_1_18=31/2, var_1_1=25, var_1_6=2, var_1_7=6442450943, var_1_8=2, var_1_9=1000000000] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_6=2, var_1_10=100, var_1_11=4, var_1_12=8, var_1_13=10, var_1_14=8, var_1_15=1, var_1_16=0, var_1_17=162/5, var_1_18=31/2, var_1_1=25, var_1_6=2, var_1_7=6442450943, var_1_8=2, var_1_9=1000000000] [L68] RET assume_abort_if_not(var_1_7 <= 4294967295) VAL [isInitial=1, last_1_var_1_6=2, var_1_10=100, var_1_11=4, var_1_12=8, var_1_13=10, var_1_14=8, var_1_15=1, var_1_16=0, var_1_17=162/5, var_1_18=31/2, var_1_1=25, var_1_6=2, var_1_7=6442450943, var_1_8=2, var_1_9=1000000000] [L69] var_1_8 = __VERIFIER_nondet_ulong() [L70] CALL assume_abort_if_not(var_1_8 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_6=2, var_1_10=100, var_1_11=4, var_1_12=8, var_1_13=10, var_1_14=8, var_1_15=1, var_1_16=0, var_1_17=162/5, var_1_18=31/2, var_1_1=25, var_1_6=2, var_1_7=6442450943, var_1_9=1000000000] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_6=2, var_1_10=100, var_1_11=4, var_1_12=8, var_1_13=10, var_1_14=8, var_1_15=1, var_1_16=0, var_1_17=162/5, var_1_18=31/2, var_1_1=25, var_1_6=2, var_1_7=6442450943, var_1_9=1000000000] [L70] RET assume_abort_if_not(var_1_8 >= 0) VAL [isInitial=1, last_1_var_1_6=2, var_1_10=100, var_1_11=4, var_1_12=8, var_1_13=10, var_1_14=8, var_1_15=1, var_1_16=0, var_1_17=162/5, var_1_18=31/2, var_1_1=25, var_1_6=2, var_1_7=6442450943, var_1_9=1000000000] [L71] CALL assume_abort_if_not(var_1_8 <= 2147483647) VAL [\old(cond)=1, isInitial=1, last_1_var_1_6=2, var_1_10=100, var_1_11=4, var_1_12=8, var_1_13=10, var_1_14=8, var_1_15=1, var_1_16=0, var_1_17=162/5, var_1_18=31/2, var_1_1=25, var_1_6=2, var_1_7=6442450943, var_1_8=2147483647, var_1_9=1000000000] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_6=2, var_1_10=100, var_1_11=4, var_1_12=8, var_1_13=10, var_1_14=8, var_1_15=1, var_1_16=0, var_1_17=162/5, var_1_18=31/2, var_1_1=25, var_1_6=2, var_1_7=6442450943, var_1_8=2147483647, var_1_9=1000000000] [L71] RET assume_abort_if_not(var_1_8 <= 2147483647) VAL [isInitial=1, last_1_var_1_6=2, var_1_10=100, var_1_11=4, var_1_12=8, var_1_13=10, var_1_14=8, var_1_15=1, var_1_16=0, var_1_17=162/5, var_1_18=31/2, var_1_1=25, var_1_6=2, var_1_7=6442450943, var_1_8=2147483647, var_1_9=1000000000] [L72] var_1_9 = __VERIFIER_nondet_ulong() [L73] CALL assume_abort_if_not(var_1_9 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_6=2, var_1_10=100, var_1_11=4, var_1_12=8, var_1_13=10, var_1_14=8, var_1_15=1, var_1_16=0, var_1_17=162/5, var_1_18=31/2, var_1_1=25, var_1_6=2, var_1_7=6442450943, var_1_8=2147483647] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_6=2, var_1_10=100, var_1_11=4, var_1_12=8, var_1_13=10, var_1_14=8, var_1_15=1, var_1_16=0, var_1_17=162/5, var_1_18=31/2, var_1_1=25, var_1_6=2, var_1_7=6442450943, var_1_8=2147483647] [L73] RET assume_abort_if_not(var_1_9 >= 0) VAL [isInitial=1, last_1_var_1_6=2, var_1_10=100, var_1_11=4, var_1_12=8, var_1_13=10, var_1_14=8, var_1_15=1, var_1_16=0, var_1_17=162/5, var_1_18=31/2, var_1_1=25, var_1_6=2, var_1_7=6442450943, var_1_8=2147483647] [L74] CALL assume_abort_if_not(var_1_9 <= 4294967295) VAL [\old(cond)=1, isInitial=1, last_1_var_1_6=2, var_1_10=100, var_1_11=4, var_1_12=8, var_1_13=10, var_1_14=8, var_1_15=1, var_1_16=0, var_1_17=162/5, var_1_18=31/2, var_1_1=25, var_1_6=2, var_1_7=6442450943, var_1_8=2147483647] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_6=2, var_1_10=100, var_1_11=4, var_1_12=8, var_1_13=10, var_1_14=8, var_1_15=1, var_1_16=0, var_1_17=162/5, var_1_18=31/2, var_1_1=25, var_1_6=2, var_1_7=6442450943, var_1_8=2147483647] [L74] RET assume_abort_if_not(var_1_9 <= 4294967295) VAL [isInitial=1, last_1_var_1_6=2, var_1_10=100, var_1_11=4, var_1_12=8, var_1_13=10, var_1_14=8, var_1_15=1, var_1_16=0, var_1_17=162/5, var_1_18=31/2, var_1_1=25, var_1_6=2, var_1_7=6442450943, var_1_8=2147483647] [L75] var_1_10 = __VERIFIER_nondet_ulong() [L76] CALL assume_abort_if_not(var_1_10 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_6=2, var_1_11=4, var_1_12=8, var_1_13=10, var_1_14=8, var_1_15=1, var_1_16=0, var_1_17=162/5, var_1_18=31/2, var_1_1=25, var_1_6=2, var_1_7=6442450943, var_1_8=2147483647] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_6=2, var_1_11=4, var_1_12=8, var_1_13=10, var_1_14=8, var_1_15=1, var_1_16=0, var_1_17=162/5, var_1_18=31/2, var_1_1=25, var_1_6=2, var_1_7=6442450943, var_1_8=2147483647] [L76] RET assume_abort_if_not(var_1_10 >= 0) VAL [isInitial=1, last_1_var_1_6=2, var_1_11=4, var_1_12=8, var_1_13=10, var_1_14=8, var_1_15=1, var_1_16=0, var_1_17=162/5, var_1_18=31/2, var_1_1=25, var_1_6=2, var_1_7=6442450943, var_1_8=2147483647] [L77] CALL assume_abort_if_not(var_1_10 <= 4294967294) VAL [\old(cond)=1, isInitial=1, last_1_var_1_6=2, var_1_10=4294967294, var_1_11=4, var_1_12=8, var_1_13=10, var_1_14=8, var_1_15=1, var_1_16=0, var_1_17=162/5, var_1_18=31/2, var_1_1=25, var_1_6=2, var_1_7=6442450943, var_1_8=2147483647] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_6=2, var_1_10=4294967294, var_1_11=4, var_1_12=8, var_1_13=10, var_1_14=8, var_1_15=1, var_1_16=0, var_1_17=162/5, var_1_18=31/2, var_1_1=25, var_1_6=2, var_1_7=6442450943, var_1_8=2147483647] [L77] RET assume_abort_if_not(var_1_10 <= 4294967294) VAL [isInitial=1, last_1_var_1_6=2, var_1_10=4294967294, var_1_11=4, var_1_12=8, var_1_13=10, var_1_14=8, var_1_15=1, var_1_16=0, var_1_17=162/5, var_1_18=31/2, var_1_1=25, var_1_6=2, var_1_7=6442450943, var_1_8=2147483647] [L78] var_1_12 = __VERIFIER_nondet_char() [L79] CALL assume_abort_if_not(var_1_12 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_6=2, var_1_10=4294967294, var_1_11=4, var_1_12=0, var_1_13=10, var_1_14=8, var_1_15=1, var_1_16=0, var_1_17=162/5, var_1_18=31/2, var_1_1=25, var_1_6=2, var_1_7=6442450943, var_1_8=2147483647] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_6=2, var_1_10=4294967294, var_1_11=4, var_1_12=0, var_1_13=10, var_1_14=8, var_1_15=1, var_1_16=0, var_1_17=162/5, var_1_18=31/2, var_1_1=25, var_1_6=2, var_1_7=6442450943, var_1_8=2147483647] [L79] RET assume_abort_if_not(var_1_12 >= 0) VAL [isInitial=1, last_1_var_1_6=2, var_1_10=4294967294, var_1_11=4, var_1_12=0, var_1_13=10, var_1_14=8, var_1_15=1, var_1_16=0, var_1_17=162/5, var_1_18=31/2, var_1_1=25, var_1_6=2, var_1_7=6442450943, var_1_8=2147483647] [L80] CALL assume_abort_if_not(var_1_12 <= 32) VAL [\old(cond)=1, isInitial=1, last_1_var_1_6=2, var_1_10=4294967294, var_1_11=4, var_1_12=0, var_1_13=10, var_1_14=8, var_1_15=1, var_1_16=0, var_1_17=162/5, var_1_18=31/2, var_1_1=25, var_1_6=2, var_1_7=6442450943, var_1_8=2147483647] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_6=2, var_1_10=4294967294, var_1_11=4, var_1_12=0, var_1_13=10, var_1_14=8, var_1_15=1, var_1_16=0, var_1_17=162/5, var_1_18=31/2, var_1_1=25, var_1_6=2, var_1_7=6442450943, var_1_8=2147483647] [L80] RET assume_abort_if_not(var_1_12 <= 32) VAL [isInitial=1, last_1_var_1_6=2, var_1_10=4294967294, var_1_11=4, var_1_12=0, var_1_13=10, var_1_14=8, var_1_15=1, var_1_16=0, var_1_17=162/5, var_1_18=31/2, var_1_1=25, var_1_6=2, var_1_7=6442450943, var_1_8=2147483647] [L81] var_1_13 = __VERIFIER_nondet_char() [L82] CALL assume_abort_if_not(var_1_13 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_6=2, var_1_10=4294967294, var_1_11=4, var_1_12=0, var_1_13=0, var_1_14=8, var_1_15=1, var_1_16=0, var_1_17=162/5, var_1_18=31/2, var_1_1=25, var_1_6=2, var_1_7=6442450943, var_1_8=2147483647] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_6=2, var_1_10=4294967294, var_1_11=4, var_1_12=0, var_1_13=0, var_1_14=8, var_1_15=1, var_1_16=0, var_1_17=162/5, var_1_18=31/2, var_1_1=25, var_1_6=2, var_1_7=6442450943, var_1_8=2147483647] [L82] RET assume_abort_if_not(var_1_13 >= 0) VAL [isInitial=1, last_1_var_1_6=2, var_1_10=4294967294, var_1_11=4, var_1_12=0, var_1_13=0, var_1_14=8, var_1_15=1, var_1_16=0, var_1_17=162/5, var_1_18=31/2, var_1_1=25, var_1_6=2, var_1_7=6442450943, var_1_8=2147483647] [L83] CALL assume_abort_if_not(var_1_13 <= 31) VAL [\old(cond)=1, isInitial=1, last_1_var_1_6=2, var_1_10=4294967294, var_1_11=4, var_1_12=0, var_1_13=0, var_1_14=8, var_1_15=1, var_1_16=0, var_1_17=162/5, var_1_18=31/2, var_1_1=25, var_1_6=2, var_1_7=6442450943, var_1_8=2147483647] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_6=2, var_1_10=4294967294, var_1_11=4, var_1_12=0, var_1_13=0, var_1_14=8, var_1_15=1, var_1_16=0, var_1_17=162/5, var_1_18=31/2, var_1_1=25, var_1_6=2, var_1_7=6442450943, var_1_8=2147483647] [L83] RET assume_abort_if_not(var_1_13 <= 31) VAL [isInitial=1, last_1_var_1_6=2, var_1_10=4294967294, var_1_11=4, var_1_12=0, var_1_13=0, var_1_14=8, var_1_15=1, var_1_16=0, var_1_17=162/5, var_1_18=31/2, var_1_1=25, var_1_6=2, var_1_7=6442450943, var_1_8=2147483647] [L84] var_1_14 = __VERIFIER_nondet_char() [L85] CALL assume_abort_if_not(var_1_14 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_6=2, var_1_10=4294967294, var_1_11=4, var_1_12=0, var_1_13=0, var_1_14=52, var_1_15=1, var_1_16=0, var_1_17=162/5, var_1_18=31/2, var_1_1=25, var_1_6=2, var_1_7=6442450943, var_1_8=2147483647] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_6=2, var_1_10=4294967294, var_1_11=4, var_1_12=0, var_1_13=0, var_1_14=52, var_1_15=1, var_1_16=0, var_1_17=162/5, var_1_18=31/2, var_1_1=25, var_1_6=2, var_1_7=6442450943, var_1_8=2147483647] [L85] RET assume_abort_if_not(var_1_14 >= 0) VAL [isInitial=1, last_1_var_1_6=2, var_1_10=4294967294, var_1_11=4, var_1_12=0, var_1_13=0, var_1_14=52, var_1_15=1, var_1_16=0, var_1_17=162/5, var_1_18=31/2, var_1_1=25, var_1_6=2, var_1_7=6442450943, var_1_8=2147483647] [L86] CALL assume_abort_if_not(var_1_14 <= 63) VAL [\old(cond)=1, isInitial=1, last_1_var_1_6=2, var_1_10=4294967294, var_1_11=4, var_1_12=0, var_1_13=0, var_1_14=52, var_1_15=1, var_1_16=0, var_1_17=162/5, var_1_18=31/2, var_1_1=25, var_1_6=2, var_1_7=6442450943, var_1_8=2147483647] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_6=2, var_1_10=4294967294, var_1_11=4, var_1_12=0, var_1_13=0, var_1_14=52, var_1_15=1, var_1_16=0, var_1_17=162/5, var_1_18=31/2, var_1_1=25, var_1_6=2, var_1_7=6442450943, var_1_8=2147483647] [L86] RET assume_abort_if_not(var_1_14 <= 63) VAL [isInitial=1, last_1_var_1_6=2, var_1_10=4294967294, var_1_11=4, var_1_12=0, var_1_13=0, var_1_14=52, var_1_15=1, var_1_16=0, var_1_17=162/5, var_1_18=31/2, var_1_1=25, var_1_6=2, var_1_7=6442450943, var_1_8=2147483647] [L87] var_1_16 = __VERIFIER_nondet_uchar() [L88] CALL assume_abort_if_not(var_1_16 >= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_6=2, var_1_10=4294967294, var_1_11=4, var_1_12=0, var_1_13=0, var_1_14=52, var_1_15=1, var_1_16=-255, var_1_17=162/5, var_1_18=31/2, var_1_1=25, var_1_6=2, var_1_7=6442450943, var_1_8=2147483647] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_6=2, var_1_10=4294967294, var_1_11=4, var_1_12=0, var_1_13=0, var_1_14=52, var_1_15=1, var_1_16=-255, var_1_17=162/5, var_1_18=31/2, var_1_1=25, var_1_6=2, var_1_7=6442450943, var_1_8=2147483647] [L88] RET assume_abort_if_not(var_1_16 >= 1) VAL [isInitial=1, last_1_var_1_6=2, var_1_10=4294967294, var_1_11=4, var_1_12=0, var_1_13=0, var_1_14=52, var_1_15=1, var_1_16=-255, var_1_17=162/5, var_1_18=31/2, var_1_1=25, var_1_6=2, var_1_7=6442450943, var_1_8=2147483647] [L89] CALL assume_abort_if_not(var_1_16 <= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_6=2, var_1_10=4294967294, var_1_11=4, var_1_12=0, var_1_13=0, var_1_14=52, var_1_15=1, var_1_16=-255, var_1_17=162/5, var_1_18=31/2, var_1_1=25, var_1_6=2, var_1_7=6442450943, var_1_8=2147483647] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_6=2, var_1_10=4294967294, var_1_11=4, var_1_12=0, var_1_13=0, var_1_14=52, var_1_15=1, var_1_16=-255, var_1_17=162/5, var_1_18=31/2, var_1_1=25, var_1_6=2, var_1_7=6442450943, var_1_8=2147483647] [L89] RET assume_abort_if_not(var_1_16 <= 1) VAL [isInitial=1, last_1_var_1_6=2, var_1_10=4294967294, var_1_11=4, var_1_12=0, var_1_13=0, var_1_14=52, var_1_15=1, var_1_16=-255, var_1_17=162/5, var_1_18=31/2, var_1_1=25, var_1_6=2, var_1_7=6442450943, var_1_8=2147483647] [L90] var_1_18 = __VERIFIER_nondet_double() [L91] CALL assume_abort_if_not((var_1_18 >= -922337.2036854765600e+13F && var_1_18 <= -1.0e-20F) || (var_1_18 <= 9223372.036854765600e+12F && var_1_18 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_6=2, var_1_10=4294967294, var_1_11=4, var_1_12=0, var_1_13=0, var_1_14=52, var_1_15=1, var_1_16=-255, var_1_17=162/5, var_1_1=25, var_1_6=2, var_1_7=6442450943, var_1_8=2147483647] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_6=2, var_1_10=4294967294, var_1_11=4, var_1_12=0, var_1_13=0, var_1_14=52, var_1_15=1, var_1_16=-255, var_1_17=162/5, var_1_1=25, var_1_6=2, var_1_7=6442450943, var_1_8=2147483647] [L91] RET assume_abort_if_not((var_1_18 >= -922337.2036854765600e+13F && var_1_18 <= -1.0e-20F) || (var_1_18 <= 9223372.036854765600e+12F && var_1_18 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_6=2, var_1_10=4294967294, var_1_11=4, var_1_12=0, var_1_13=0, var_1_14=52, var_1_15=1, var_1_16=-255, var_1_17=162/5, var_1_1=25, var_1_6=2, var_1_7=6442450943, var_1_8=2147483647] [L105] RET updateVariables() [L106] CALL step() [L40] var_1_15 = var_1_16 [L41] var_1_17 = var_1_18 VAL [isInitial=1, last_1_var_1_6=2, var_1_10=4294967294, var_1_11=4, var_1_12=0, var_1_13=0, var_1_14=52, var_1_15=-255, var_1_16=-255, var_1_17=6442450948, var_1_18=6442450948, var_1_1=25, var_1_6=2, var_1_7=6442450943, var_1_8=2147483647] [L42] COND TRUE \read(var_1_15) [L43] var_1_11 = (((var_1_12 + var_1_13) + var_1_14) - 50) VAL [isInitial=1, last_1_var_1_6=2, var_1_10=4294967294, var_1_11=2, var_1_12=0, var_1_13=0, var_1_14=52, var_1_15=-255, var_1_16=-255, var_1_17=6442450948, var_1_18=6442450948, var_1_1=25, var_1_6=2, var_1_7=6442450943, var_1_8=2147483647] [L45] COND TRUE \read(var_1_15) [L46] var_1_1 = (((((var_1_11 + var_1_11)) < (var_1_11)) ? ((var_1_11 + var_1_11)) : (var_1_11))) VAL [isInitial=1, last_1_var_1_6=2, var_1_10=4294967294, var_1_11=2, var_1_12=0, var_1_13=0, var_1_14=52, var_1_15=-255, var_1_16=-255, var_1_17=6442450948, var_1_18=6442450948, var_1_1=2, var_1_6=2, var_1_7=6442450943, var_1_8=2147483647] [L48] signed long int stepLocal_2 = (((var_1_11) < (var_1_11)) ? (var_1_11) : (var_1_11)); [L49] signed long int stepLocal_1 = (((var_1_11) > (var_1_11)) ? (var_1_11) : (var_1_11)); [L50] unsigned long int stepLocal_0 = var_1_7 - var_1_8; VAL [isInitial=1, last_1_var_1_6=2, stepLocal_0=4294967296, stepLocal_1=2, stepLocal_2=2, var_1_10=4294967294, var_1_11=2, var_1_12=0, var_1_13=0, var_1_14=52, var_1_15=-255, var_1_16=-255, var_1_17=6442450948, var_1_18=6442450948, var_1_1=2, var_1_6=2, var_1_7=6442450943, var_1_8=2147483647] [L51] COND FALSE !(last_1_var_1_6 != stepLocal_2) [L62] var_1_6 = var_1_8 VAL [isInitial=1, last_1_var_1_6=2, stepLocal_0=4294967296, stepLocal_1=2, var_1_10=4294967294, var_1_11=2, var_1_12=0, var_1_13=0, var_1_14=52, var_1_15=-255, var_1_16=-255, var_1_17=6442450948, var_1_18=6442450948, var_1_1=2, var_1_6=2147483647, var_1_7=6442450943, var_1_8=2147483647] [L106] RET step() [L107] CALL, EXPR property() [L97] EXPR (var_1_15 ? (var_1_1 == ((signed short int) (((((var_1_11 + var_1_11)) < (var_1_11)) ? ((var_1_11 + var_1_11)) : (var_1_11))))) : 1) && ((last_1_var_1_6 != ((((var_1_11) < (var_1_11)) ? (var_1_11) : (var_1_11)))) ? (((var_1_7 - var_1_8) >= var_1_9) ? ((((((var_1_11) > (var_1_11)) ? (var_1_11) : (var_1_11))) < (var_1_8 >> var_1_9)) ? (var_1_6 == ((unsigned long int) var_1_8)) : (var_1_6 == ((unsigned long int) var_1_10))) : (var_1_6 == ((unsigned long int) var_1_10))) : (var_1_6 == ((unsigned long int) var_1_8))) VAL [isInitial=1, last_1_var_1_6=2, var_1_10=4294967294, var_1_11=2, var_1_12=0, var_1_13=0, var_1_14=52, var_1_15=-255, var_1_16=-255, var_1_17=6442450948, var_1_18=6442450948, var_1_1=2, var_1_6=2147483647, var_1_7=6442450943, var_1_8=2147483647] [L97] EXPR (last_1_var_1_6 != ((((var_1_11) < (var_1_11)) ? (var_1_11) : (var_1_11)))) ? (((var_1_7 - var_1_8) >= var_1_9) ? ((((((var_1_11) > (var_1_11)) ? (var_1_11) : (var_1_11))) < (var_1_8 >> var_1_9)) ? (var_1_6 == ((unsigned long int) var_1_8)) : (var_1_6 == ((unsigned long int) var_1_10))) : (var_1_6 == ((unsigned long int) var_1_10))) : (var_1_6 == ((unsigned long int) var_1_8)) VAL [isInitial=1, last_1_var_1_6=2, var_1_10=4294967294, var_1_11=2, var_1_12=0, var_1_13=0, var_1_14=52, var_1_15=-255, var_1_16=-255, var_1_17=6442450948, var_1_18=6442450948, var_1_1=2, var_1_6=2147483647, var_1_7=6442450943, var_1_8=2147483647] [L97] EXPR (var_1_15 ? (var_1_1 == ((signed short int) (((((var_1_11 + var_1_11)) < (var_1_11)) ? ((var_1_11 + var_1_11)) : (var_1_11))))) : 1) && ((last_1_var_1_6 != ((((var_1_11) < (var_1_11)) ? (var_1_11) : (var_1_11)))) ? (((var_1_7 - var_1_8) >= var_1_9) ? ((((((var_1_11) > (var_1_11)) ? (var_1_11) : (var_1_11))) < (var_1_8 >> var_1_9)) ? (var_1_6 == ((unsigned long int) var_1_8)) : (var_1_6 == ((unsigned long int) var_1_10))) : (var_1_6 == ((unsigned long int) var_1_10))) : (var_1_6 == ((unsigned long int) var_1_8))) VAL [isInitial=1, last_1_var_1_6=2, var_1_10=4294967294, var_1_11=2, var_1_12=0, var_1_13=0, var_1_14=52, var_1_15=-255, var_1_16=-255, var_1_17=6442450948, var_1_18=6442450948, var_1_1=2, var_1_6=2147483647, var_1_7=6442450943, var_1_8=2147483647] [L97-L98] return ((((var_1_15 ? (var_1_1 == ((signed short int) (((((var_1_11 + var_1_11)) < (var_1_11)) ? ((var_1_11 + var_1_11)) : (var_1_11))))) : 1) && ((last_1_var_1_6 != ((((var_1_11) < (var_1_11)) ? (var_1_11) : (var_1_11)))) ? (((var_1_7 - var_1_8) >= var_1_9) ? ((((((var_1_11) > (var_1_11)) ? (var_1_11) : (var_1_11))) < (var_1_8 >> var_1_9)) ? (var_1_6 == ((unsigned long int) var_1_8)) : (var_1_6 == ((unsigned long int) var_1_10))) : (var_1_6 == ((unsigned long int) var_1_10))) : (var_1_6 == ((unsigned long int) var_1_8)))) && (var_1_15 ? (var_1_11 == ((signed char) (((var_1_12 + var_1_13) + var_1_14) - 50))) : 1)) && (var_1_15 == ((unsigned char) var_1_16))) && (var_1_17 == ((double) var_1_18)) ; [L107] RET, EXPR property() [L107] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [isInitial=1, last_1_var_1_6=2, var_1_10=4294967294, var_1_11=2, var_1_12=0, var_1_13=0, var_1_14=52, var_1_15=-255, var_1_16=-255, var_1_17=6442450948, var_1_18=6442450948, var_1_1=2, var_1_6=2147483647, var_1_7=6442450943, var_1_8=2147483647] [L19] reach_error() VAL [isInitial=1, last_1_var_1_6=2, var_1_10=4294967294, var_1_11=2, var_1_12=0, var_1_13=0, var_1_14=52, var_1_15=-255, var_1_16=-255, var_1_17=6442450948, var_1_18=6442450948, var_1_1=2, var_1_6=2147483647, var_1_7=6442450943, var_1_8=2147483647] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 62 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 3.9s, OverallIterations: 4, TraceHistogramMax: 17, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 221 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 221 mSDsluCounter, 1075 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 706 mSDsCounter, 5 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 112 IncrementalHoareTripleChecker+Invalid, 117 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 5 mSolverCounterUnsat, 369 mSDtfsCounter, 112 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 125 GetRequests, 116 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=67occurred in iteration=2, InterpolantAutomatonStates: 11, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 3 MinimizatonAttempts, 130 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 1.7s InterpolantComputationTime, 547 NumberOfCodeBlocks, 547 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 432 ConstructedInterpolants, 0 QuantifiedInterpolants, 693 SizeOfPredicates, 0 NumberOfNonLiveVariables, 258 ConjunctsInSsa, 1 ConjunctsInUnsatCore, 4 InterpolantComputations, 3 PerfectInterpolantSequences, 2144/2176 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 [2024-11-28 03:19:45,638 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5b420e5-3ca2-462d-a45b-8e2fb1028f7c/bin/uautomizer-verify-aQ6SnzHsRB/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_c5b420e5-3ca2-462d-a45b-8e2fb1028f7c/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5b420e5-3ca2-462d-a45b-8e2fb1028f7c/bin/uautomizer-verify-aQ6SnzHsRB/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5b420e5-3ca2-462d-a45b-8e2fb1028f7c/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5b420e5-3ca2-462d-a45b-8e2fb1028f7c/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-90.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5b420e5-3ca2-462d-a45b-8e2fb1028f7c/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5b420e5-3ca2-462d-a45b-8e2fb1028f7c/bin/uautomizer-verify-aQ6SnzHsRB --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 5e76bf897418c531679e53fa28b7c04d453b1c5b37fbed71b943af641f77aed6 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 03:19:48,975 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 03:19:49,143 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5b420e5-3ca2-462d-a45b-8e2fb1028f7c/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-11-28 03:19:49,159 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 03:19:49,160 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 03:19:49,214 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 03:19:49,215 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 03:19:49,215 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 03:19:49,217 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 03:19:49,218 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 03:19:49,218 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 03:19:49,219 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 03:19:49,220 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 03:19:49,220 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 03:19:49,220 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 03:19:49,220 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 03:19:49,221 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-28 03:19:49,221 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-28 03:19:49,221 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-28 03:19:49,222 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 03:19:49,222 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-28 03:19:49,222 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 03:19:49,223 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-28 03:19:49,223 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-28 03:19:49,223 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-28 03:19:49,223 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-28 03:19:49,223 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-28 03:19:49,224 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-28 03:19:49,224 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 03:19:49,224 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 03:19:49,224 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 03:19:49,225 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 03:19:49,226 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 03:19:49,226 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 03:19:49,226 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 03:19:49,226 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 03:19:49,226 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 03:19:49,226 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 03:19:49,226 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 03:19:49,226 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 03:19:49,227 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 03:19:49,227 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 03:19:49,227 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-28 03:19:49,227 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-28 03:19:49,227 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2024-11-28 03:19:49,227 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-28 03:19:49,227 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 03:19:49,227 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 03:19:49,227 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 03:19:49,227 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 03:19:49,227 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_c5b420e5-3ca2-462d-a45b-8e2fb1028f7c/bin/uautomizer-verify-aQ6SnzHsRB Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5e76bf897418c531679e53fa28b7c04d453b1c5b37fbed71b943af641f77aed6 [2024-11-28 03:19:49,600 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 03:19:49,614 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 03:19:49,617 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 03:19:49,618 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 03:19:49,619 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 03:19:49,620 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5b420e5-3ca2-462d-a45b-8e2fb1028f7c/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-90.i [2024-11-28 03:19:53,202 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5b420e5-3ca2-462d-a45b-8e2fb1028f7c/bin/uautomizer-verify-aQ6SnzHsRB/data/bc5d542eb/54a650e1fce141a08f97068ed64a9ead/FLAGd9ff45fe9 [2024-11-28 03:19:53,536 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 03:19:53,536 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5b420e5-3ca2-462d-a45b-8e2fb1028f7c/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-90.i [2024-11-28 03:19:53,555 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5b420e5-3ca2-462d-a45b-8e2fb1028f7c/bin/uautomizer-verify-aQ6SnzHsRB/data/bc5d542eb/54a650e1fce141a08f97068ed64a9ead/FLAGd9ff45fe9 [2024-11-28 03:19:53,579 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5b420e5-3ca2-462d-a45b-8e2fb1028f7c/bin/uautomizer-verify-aQ6SnzHsRB/data/bc5d542eb/54a650e1fce141a08f97068ed64a9ead [2024-11-28 03:19:53,582 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 03:19:53,585 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 03:19:53,589 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 03:19:53,589 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 03:19:53,596 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 03:19:53,597 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:19:53" (1/1) ... [2024-11-28 03:19:53,600 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@370d18f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:19:53, skipping insertion in model container [2024-11-28 03:19:53,601 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:19:53" (1/1) ... [2024-11-28 03:19:53,629 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 03:19:53,848 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_c5b420e5-3ca2-462d-a45b-8e2fb1028f7c/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-90.i[915,928] [2024-11-28 03:19:53,928 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 03:19:53,960 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 03:19:53,974 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_c5b420e5-3ca2-462d-a45b-8e2fb1028f7c/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-90.i[915,928] [2024-11-28 03:19:54,022 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 03:19:54,056 INFO L204 MainTranslator]: Completed translation [2024-11-28 03:19:54,057 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:19:54 WrapperNode [2024-11-28 03:19:54,057 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 03:19:54,059 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 03:19:54,059 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 03:19:54,059 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 03:19:54,068 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:19:54" (1/1) ... [2024-11-28 03:19:54,079 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:19:54" (1/1) ... [2024-11-28 03:19:54,125 INFO L138 Inliner]: procedures = 27, calls = 30, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 109 [2024-11-28 03:19:54,126 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 03:19:54,127 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 03:19:54,129 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 03:19:54,130 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 03:19:54,141 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:19:54" (1/1) ... [2024-11-28 03:19:54,142 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:19:54" (1/1) ... [2024-11-28 03:19:54,147 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:19:54" (1/1) ... [2024-11-28 03:19:54,173 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]. [2024-11-28 03:19:54,173 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:19:54" (1/1) ... [2024-11-28 03:19:54,173 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:19:54" (1/1) ... [2024-11-28 03:19:54,186 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:19:54" (1/1) ... [2024-11-28 03:19:54,187 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:19:54" (1/1) ... [2024-11-28 03:19:54,191 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:19:54" (1/1) ... [2024-11-28 03:19:54,193 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:19:54" (1/1) ... [2024-11-28 03:19:54,195 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:19:54" (1/1) ... [2024-11-28 03:19:54,198 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 03:19:54,199 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 03:19:54,200 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 03:19:54,200 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 03:19:54,201 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:19:54" (1/1) ... [2024-11-28 03:19:54,209 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 03:19:54,227 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5b420e5-3ca2-462d-a45b-8e2fb1028f7c/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:19:54,246 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5b420e5-3ca2-462d-a45b-8e2fb1028f7c/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-28 03:19:54,254 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5b420e5-3ca2-462d-a45b-8e2fb1028f7c/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-28 03:19:54,281 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-28 03:19:54,282 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-28 03:19:54,282 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-28 03:19:54,283 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-28 03:19:54,283 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 03:19:54,283 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 03:19:54,392 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 03:19:54,394 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 03:19:54,693 INFO L? ?]: Removed 14 outVars from TransFormulas that were not future-live. [2024-11-28 03:19:54,693 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 03:19:54,706 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 03:19:54,707 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-28 03:19:54,707 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:19:54 BoogieIcfgContainer [2024-11-28 03:19:54,707 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 03:19:54,710 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-28 03:19:54,711 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-28 03:19:54,717 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-28 03:19:54,717 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 03:19:53" (1/3) ... [2024-11-28 03:19:54,718 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@122f84c4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:19:54, skipping insertion in model container [2024-11-28 03:19:54,719 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:19:54" (2/3) ... [2024-11-28 03:19:54,719 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@122f84c4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:19:54, skipping insertion in model container [2024-11-28 03:19:54,719 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:19:54" (3/3) ... [2024-11-28 03:19:54,721 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_loopvsstraightlinecode_25-while_file-90.i [2024-11-28 03:19:54,741 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-28 03:19:54,743 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_loopvsstraightlinecode_25-while_file-90.i that has 2 procedures, 51 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-28 03:19:54,822 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 03:19:54,836 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;@13426580, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 03:19:54,836 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-28 03:19:54,841 INFO L276 IsEmpty]: Start isEmpty. Operand has 51 states, 31 states have (on average 1.3225806451612903) internal successors, (41), 32 states have internal predecessors, (41), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-11-28 03:19:54,854 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2024-11-28 03:19:54,854 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:19:54,855 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:19:54,855 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:19:54,861 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:19:54,862 INFO L85 PathProgramCache]: Analyzing trace with hash 1387335848, now seen corresponding path program 1 times [2024-11-28 03:19:54,873 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 03:19:54,873 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [505235081] [2024-11-28 03:19:54,874 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:19:54,874 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 [2024-11-28 03:19:54,875 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5b420e5-3ca2-462d-a45b-8e2fb1028f7c/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 03:19:54,877 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5b420e5-3ca2-462d-a45b-8e2fb1028f7c/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-28 03:19:54,879 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5b420e5-3ca2-462d-a45b-8e2fb1028f7c/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2024-11-28 03:19:55,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:19:55,116 INFO L256 TraceCheckSpWp]: Trace formula consists of 177 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-28 03:19:55,150 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:19:55,197 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 284 proven. 0 refuted. 0 times theorem prover too weak. 260 trivial. 0 not checked. [2024-11-28 03:19:55,197 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 03:19:55,198 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 03:19:55,202 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [505235081] [2024-11-28 03:19:55,202 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [505235081] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:19:55,203 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:19:55,203 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 03:19:55,205 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [945421585] [2024-11-28 03:19:55,206 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:19:55,212 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-28 03:19:55,213 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 03:19:55,241 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-28 03:19:55,242 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-28 03:19:55,245 INFO L87 Difference]: Start difference. First operand has 51 states, 31 states have (on average 1.3225806451612903) internal successors, (41), 32 states have internal predecessors, (41), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) Second operand has 2 states, 2 states have (on average 14.5) internal successors, (29), 2 states have internal predecessors, (29), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-28 03:19:55,281 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:19:55,282 INFO L93 Difference]: Finished difference Result 95 states and 161 transitions. [2024-11-28 03:19:55,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-28 03:19:55,284 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 14.5) internal successors, (29), 2 states have internal predecessors, (29), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 107 [2024-11-28 03:19:55,285 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:19:55,292 INFO L225 Difference]: With dead ends: 95 [2024-11-28 03:19:55,292 INFO L226 Difference]: Without dead ends: 47 [2024-11-28 03:19:55,297 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 [2024-11-28 03:19:55,302 INFO L435 NwaCegarLoop]: 68 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, 68 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 [2024-11-28 03:19:55,303 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 03:19:55,316 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2024-11-28 03:19:55,341 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 47. [2024-11-28 03:19:55,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47 states, 28 states have (on average 1.2142857142857142) internal successors, (34), 28 states have internal predecessors, (34), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-11-28 03:19:55,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 68 transitions. [2024-11-28 03:19:55,349 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 68 transitions. Word has length 107 [2024-11-28 03:19:55,350 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:19:55,350 INFO L471 AbstractCegarLoop]: Abstraction has 47 states and 68 transitions. [2024-11-28 03:19:55,350 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 14.5) internal successors, (29), 2 states have internal predecessors, (29), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-28 03:19:55,351 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 68 transitions. [2024-11-28 03:19:55,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2024-11-28 03:19:55,360 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:19:55,360 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:19:55,367 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5b420e5-3ca2-462d-a45b-8e2fb1028f7c/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2024-11-28 03:19:55,561 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5b420e5-3ca2-462d-a45b-8e2fb1028f7c/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 03:19:55,561 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:19:55,562 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:19:55,562 INFO L85 PathProgramCache]: Analyzing trace with hash 2101967718, now seen corresponding path program 1 times [2024-11-28 03:19:55,563 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 03:19:55,563 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [126653702] [2024-11-28 03:19:55,563 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:19:55,564 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 [2024-11-28 03:19:55,564 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5b420e5-3ca2-462d-a45b-8e2fb1028f7c/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 03:19:55,566 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5b420e5-3ca2-462d-a45b-8e2fb1028f7c/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-28 03:19:55,568 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5b420e5-3ca2-462d-a45b-8e2fb1028f7c/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2024-11-28 03:19:55,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:19:55,831 INFO L256 TraceCheckSpWp]: Trace formula consists of 177 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-11-28 03:19:55,855 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:20:02,351 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 48 proven. 0 refuted. 0 times theorem prover too weak. 496 trivial. 0 not checked. [2024-11-28 03:20:02,351 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 03:20:02,352 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 03:20:02,352 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [126653702] [2024-11-28 03:20:02,352 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [126653702] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:20:02,352 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:20:02,352 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-28 03:20:02,352 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [928265317] [2024-11-28 03:20:02,353 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:20:02,354 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-28 03:20:02,354 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 03:20:02,355 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-28 03:20:02,356 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=141, Unknown=0, NotChecked=0, Total=182 [2024-11-28 03:20:02,356 INFO L87 Difference]: Start difference. First operand 47 states and 68 transitions. Second operand has 14 states, 14 states have (on average 2.0) internal successors, (28), 12 states have internal predecessors, (28), 1 states have call successors, (17), 1 states have call predecessors, (17), 2 states have return successors, (17), 2 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-28 03:20:05,909 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:20:05,910 INFO L93 Difference]: Finished difference Result 128 states and 176 transitions. [2024-11-28 03:20:05,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-28 03:20:05,912 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 2.0) internal successors, (28), 12 states have internal predecessors, (28), 1 states have call successors, (17), 1 states have call predecessors, (17), 2 states have return successors, (17), 2 states have call predecessors, (17), 1 states have call successors, (17) Word has length 107 [2024-11-28 03:20:05,913 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:20:05,917 INFO L225 Difference]: With dead ends: 128 [2024-11-28 03:20:05,917 INFO L226 Difference]: Without dead ends: 126 [2024-11-28 03:20:05,919 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 123 GetRequests, 94 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 195 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=205, Invalid=725, Unknown=0, NotChecked=0, Total=930 [2024-11-28 03:20:05,921 INFO L435 NwaCegarLoop]: 40 mSDtfsCounter, 180 mSDsluCounter, 349 mSDsCounter, 0 mSdLazyCounter, 375 mSolverCounterSat, 75 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 180 SdHoareTripleChecker+Valid, 389 SdHoareTripleChecker+Invalid, 450 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 75 IncrementalHoareTripleChecker+Valid, 375 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-28 03:20:05,922 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [180 Valid, 389 Invalid, 450 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [75 Valid, 375 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-28 03:20:05,923 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126 states. [2024-11-28 03:20:05,952 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126 to 90. [2024-11-28 03:20:05,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 90 states, 52 states have (on average 1.1730769230769231) internal successors, (61), 52 states have internal predecessors, (61), 34 states have call successors, (34), 3 states have call predecessors, (34), 3 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2024-11-28 03:20:05,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 129 transitions. [2024-11-28 03:20:05,956 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 129 transitions. Word has length 107 [2024-11-28 03:20:05,958 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:20:05,959 INFO L471 AbstractCegarLoop]: Abstraction has 90 states and 129 transitions. [2024-11-28 03:20:05,960 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 2.0) internal successors, (28), 12 states have internal predecessors, (28), 1 states have call successors, (17), 1 states have call predecessors, (17), 2 states have return successors, (17), 2 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-28 03:20:05,960 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 129 transitions. [2024-11-28 03:20:05,964 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2024-11-28 03:20:05,964 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:20:05,965 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:20:05,970 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5b420e5-3ca2-462d-a45b-8e2fb1028f7c/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2024-11-28 03:20:06,169 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5b420e5-3ca2-462d-a45b-8e2fb1028f7c/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 03:20:06,169 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:20:06,170 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:20:06,170 INFO L85 PathProgramCache]: Analyzing trace with hash -417992216, now seen corresponding path program 1 times [2024-11-28 03:20:06,171 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 03:20:06,171 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [9081871] [2024-11-28 03:20:06,171 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:20:06,172 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 [2024-11-28 03:20:06,172 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5b420e5-3ca2-462d-a45b-8e2fb1028f7c/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 03:20:06,175 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5b420e5-3ca2-462d-a45b-8e2fb1028f7c/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-28 03:20:06,178 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5b420e5-3ca2-462d-a45b-8e2fb1028f7c/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2024-11-28 03:20:06,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:20:06,346 INFO L256 TraceCheckSpWp]: Trace formula consists of 176 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-28 03:20:06,353 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:20:06,528 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 160 proven. 6 refuted. 0 times theorem prover too weak. 378 trivial. 0 not checked. [2024-11-28 03:20:06,528 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:20:06,750 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 42 proven. 6 refuted. 0 times theorem prover too weak. 496 trivial. 0 not checked. [2024-11-28 03:20:06,751 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 03:20:06,751 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [9081871] [2024-11-28 03:20:06,751 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [9081871] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 03:20:06,751 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-28 03:20:06,752 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 6] total 12 [2024-11-28 03:20:06,752 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2121982134] [2024-11-28 03:20:06,752 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-28 03:20:06,752 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-28 03:20:06,754 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 03:20:06,755 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-28 03:20:06,755 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2024-11-28 03:20:06,755 INFO L87 Difference]: Start difference. First operand 90 states and 129 transitions. Second operand has 12 states, 12 states have (on average 3.4166666666666665) internal successors, (41), 12 states have internal predecessors, (41), 3 states have call successors, (19), 3 states have call predecessors, (19), 5 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) [2024-11-28 03:20:07,456 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:20:07,456 INFO L93 Difference]: Finished difference Result 150 states and 207 transitions. [2024-11-28 03:20:07,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-28 03:20:07,458 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 3.4166666666666665) internal successors, (41), 12 states have internal predecessors, (41), 3 states have call successors, (19), 3 states have call predecessors, (19), 5 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) Word has length 107 [2024-11-28 03:20:07,459 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:20:07,460 INFO L225 Difference]: With dead ends: 150 [2024-11-28 03:20:07,460 INFO L226 Difference]: Without dead ends: 106 [2024-11-28 03:20:07,461 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 224 GetRequests, 203 SyntacticMatches, 1 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=149, Invalid=313, Unknown=0, NotChecked=0, Total=462 [2024-11-28 03:20:07,461 INFO L435 NwaCegarLoop]: 71 mSDtfsCounter, 71 mSDsluCounter, 153 mSDsCounter, 0 mSdLazyCounter, 270 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 86 SdHoareTripleChecker+Valid, 224 SdHoareTripleChecker+Invalid, 324 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 270 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-28 03:20:07,464 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [86 Valid, 224 Invalid, 324 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 270 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-28 03:20:07,466 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106 states. [2024-11-28 03:20:07,495 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106 to 102. [2024-11-28 03:20:07,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 102 states, 61 states have (on average 1.0819672131147542) internal successors, (66), 61 states have internal predecessors, (66), 34 states have call successors, (34), 6 states have call predecessors, (34), 6 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2024-11-28 03:20:07,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 134 transitions. [2024-11-28 03:20:07,499 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 134 transitions. Word has length 107 [2024-11-28 03:20:07,503 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:20:07,503 INFO L471 AbstractCegarLoop]: Abstraction has 102 states and 134 transitions. [2024-11-28 03:20:07,503 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 3.4166666666666665) internal successors, (41), 12 states have internal predecessors, (41), 3 states have call successors, (19), 3 states have call predecessors, (19), 5 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) [2024-11-28 03:20:07,504 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 134 transitions. [2024-11-28 03:20:07,508 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2024-11-28 03:20:07,508 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:20:07,508 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:20:07,512 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5b420e5-3ca2-462d-a45b-8e2fb1028f7c/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2024-11-28 03:20:07,709 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5b420e5-3ca2-462d-a45b-8e2fb1028f7c/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 03:20:07,710 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:20:07,710 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:20:07,710 INFO L85 PathProgramCache]: Analyzing trace with hash 331001653, now seen corresponding path program 1 times [2024-11-28 03:20:07,711 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 03:20:07,711 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1957548402] [2024-11-28 03:20:07,711 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:20:07,711 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 [2024-11-28 03:20:07,711 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5b420e5-3ca2-462d-a45b-8e2fb1028f7c/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 03:20:07,715 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5b420e5-3ca2-462d-a45b-8e2fb1028f7c/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-28 03:20:07,716 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5b420e5-3ca2-462d-a45b-8e2fb1028f7c/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2024-11-28 03:20:07,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:20:07,849 INFO L256 TraceCheckSpWp]: Trace formula consists of 178 conjuncts, 21 conjuncts are in the unsatisfiable core [2024-11-28 03:20:07,855 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:20:13,114 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 217 proven. 36 refuted. 0 times theorem prover too weak. 291 trivial. 0 not checked. [2024-11-28 03:20:13,114 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:20:26,069 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 48 proven. 0 refuted. 0 times theorem prover too weak. 496 trivial. 0 not checked. [2024-11-28 03:20:26,070 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 03:20:26,070 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1957548402] [2024-11-28 03:20:26,070 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1957548402] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-28 03:20:26,070 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 03:20:26,070 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [16] total 28 [2024-11-28 03:20:26,070 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [869800093] [2024-11-28 03:20:26,070 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:20:26,071 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-28 03:20:26,071 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 03:20:26,072 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-28 03:20:26,072 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=148, Invalid=608, Unknown=0, NotChecked=0, Total=756 [2024-11-28 03:20:26,073 INFO L87 Difference]: Start difference. First operand 102 states and 134 transitions. Second operand has 13 states, 13 states have (on average 2.230769230769231) internal successors, (29), 12 states have internal predecessors, (29), 1 states have call successors, (17), 1 states have call predecessors, (17), 2 states have return successors, (17), 2 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-28 03:20:29,642 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:20:29,642 INFO L93 Difference]: Finished difference Result 117 states and 147 transitions. [2024-11-28 03:20:29,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-28 03:20:29,643 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 2.230769230769231) internal successors, (29), 12 states have internal predecessors, (29), 1 states have call successors, (17), 1 states have call predecessors, (17), 2 states have return successors, (17), 2 states have call predecessors, (17), 1 states have call successors, (17) Word has length 108 [2024-11-28 03:20:29,644 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:20:29,646 INFO L225 Difference]: With dead ends: 117 [2024-11-28 03:20:29,646 INFO L226 Difference]: Without dead ends: 115 [2024-11-28 03:20:29,646 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 218 GetRequests, 188 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 284 ImplicationChecksByTransitivity, 5.2s TimeCoverageRelationStatistics Valid=188, Invalid=804, Unknown=0, NotChecked=0, Total=992 [2024-11-28 03:20:29,647 INFO L435 NwaCegarLoop]: 97 mSDtfsCounter, 159 mSDsluCounter, 260 mSDsCounter, 0 mSdLazyCounter, 392 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 159 SdHoareTripleChecker+Valid, 357 SdHoareTripleChecker+Invalid, 442 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 392 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2024-11-28 03:20:29,648 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [159 Valid, 357 Invalid, 442 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 392 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2024-11-28 03:20:29,649 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2024-11-28 03:20:29,674 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 110. [2024-11-28 03:20:29,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 110 states, 67 states have (on average 1.0746268656716418) internal successors, (72), 67 states have internal predecessors, (72), 34 states have call successors, (34), 8 states have call predecessors, (34), 8 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2024-11-28 03:20:29,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 140 transitions. [2024-11-28 03:20:29,678 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 140 transitions. Word has length 108 [2024-11-28 03:20:29,679 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:20:29,679 INFO L471 AbstractCegarLoop]: Abstraction has 110 states and 140 transitions. [2024-11-28 03:20:29,679 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 2.230769230769231) internal successors, (29), 12 states have internal predecessors, (29), 1 states have call successors, (17), 1 states have call predecessors, (17), 2 states have return successors, (17), 2 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-28 03:20:29,680 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 140 transitions. [2024-11-28 03:20:29,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2024-11-28 03:20:29,682 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:20:29,682 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:20:29,687 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5b420e5-3ca2-462d-a45b-8e2fb1028f7c/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Ended with exit code 0 [2024-11-28 03:20:29,883 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5b420e5-3ca2-462d-a45b-8e2fb1028f7c/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 03:20:29,883 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:20:29,884 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:20:29,884 INFO L85 PathProgramCache]: Analyzing trace with hash 1432785787, now seen corresponding path program 1 times [2024-11-28 03:20:29,884 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 03:20:29,884 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1980830862] [2024-11-28 03:20:29,884 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:20:29,884 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 [2024-11-28 03:20:29,885 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5b420e5-3ca2-462d-a45b-8e2fb1028f7c/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 03:20:29,886 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5b420e5-3ca2-462d-a45b-8e2fb1028f7c/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-28 03:20:29,888 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5b420e5-3ca2-462d-a45b-8e2fb1028f7c/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2024-11-28 03:20:30,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:20:30,014 INFO L256 TraceCheckSpWp]: Trace formula consists of 179 conjuncts, 41 conjuncts are in the unsatisfiable core [2024-11-28 03:20:30,019 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:20:37,281 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 441 proven. 54 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2024-11-28 03:20:37,281 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:20:51,361 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 48 proven. 0 refuted. 0 times theorem prover too weak. 496 trivial. 0 not checked. [2024-11-28 03:20:51,362 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 03:20:51,362 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1980830862] [2024-11-28 03:20:51,362 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1980830862] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-28 03:20:51,362 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 03:20:51,362 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [35] total 48 [2024-11-28 03:20:51,362 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2048539295] [2024-11-28 03:20:51,362 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:20:51,363 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-28 03:20:51,363 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 03:20:51,364 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-28 03:20:51,365 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=361, Invalid=1895, Unknown=0, NotChecked=0, Total=2256 [2024-11-28 03:20:51,365 INFO L87 Difference]: Start difference. First operand 110 states and 140 transitions. Second operand has 14 states, 14 states have (on average 2.142857142857143) internal successors, (30), 13 states have internal predecessors, (30), 1 states have call successors, (17), 1 states have call predecessors, (17), 2 states have return successors, (17), 2 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-28 03:20:57,628 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:20:57,628 INFO L93 Difference]: Finished difference Result 131 states and 159 transitions. [2024-11-28 03:20:57,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-28 03:20:57,630 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 2.142857142857143) internal successors, (30), 13 states have internal predecessors, (30), 1 states have call successors, (17), 1 states have call predecessors, (17), 2 states have return successors, (17), 2 states have call predecessors, (17), 1 states have call successors, (17) Word has length 109 [2024-11-28 03:20:57,633 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:20:57,634 INFO L225 Difference]: With dead ends: 131 [2024-11-28 03:20:57,634 INFO L226 Difference]: Without dead ends: 129 [2024-11-28 03:20:57,635 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 224 GetRequests, 172 SyntacticMatches, 0 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 989 ImplicationChecksByTransitivity, 12.6s TimeCoverageRelationStatistics Valid=446, Invalid=2416, Unknown=0, NotChecked=0, Total=2862 [2024-11-28 03:20:57,636 INFO L435 NwaCegarLoop]: 42 mSDtfsCounter, 102 mSDsluCounter, 130 mSDsCounter, 0 mSdLazyCounter, 291 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 102 SdHoareTripleChecker+Valid, 172 SdHoareTripleChecker+Invalid, 320 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 291 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2024-11-28 03:20:57,636 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [102 Valid, 172 Invalid, 320 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 291 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2024-11-28 03:20:57,637 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129 states. [2024-11-28 03:20:57,670 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129 to 118. [2024-11-28 03:20:57,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 118 states, 73 states have (on average 1.0684931506849316) internal successors, (78), 73 states have internal predecessors, (78), 34 states have call successors, (34), 10 states have call predecessors, (34), 10 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2024-11-28 03:20:57,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 118 states and 146 transitions. [2024-11-28 03:20:57,673 INFO L78 Accepts]: Start accepts. Automaton has 118 states and 146 transitions. Word has length 109 [2024-11-28 03:20:57,673 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:20:57,673 INFO L471 AbstractCegarLoop]: Abstraction has 118 states and 146 transitions. [2024-11-28 03:20:57,674 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 2.142857142857143) internal successors, (30), 13 states have internal predecessors, (30), 1 states have call successors, (17), 1 states have call predecessors, (17), 2 states have return successors, (17), 2 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-28 03:20:57,674 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states and 146 transitions. [2024-11-28 03:20:57,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2024-11-28 03:20:57,679 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:20:57,679 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:20:57,684 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5b420e5-3ca2-462d-a45b-8e2fb1028f7c/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Ended with exit code 0 [2024-11-28 03:20:57,879 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5b420e5-3ca2-462d-a45b-8e2fb1028f7c/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 03:20:57,880 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:20:57,880 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:20:57,880 INFO L85 PathProgramCache]: Analyzing trace with hash 1434632829, now seen corresponding path program 1 times [2024-11-28 03:20:57,881 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 03:20:57,881 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2127149403] [2024-11-28 03:20:57,881 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:20:57,881 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 [2024-11-28 03:20:57,881 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5b420e5-3ca2-462d-a45b-8e2fb1028f7c/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 03:20:57,883 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5b420e5-3ca2-462d-a45b-8e2fb1028f7c/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-28 03:20:57,884 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5b420e5-3ca2-462d-a45b-8e2fb1028f7c/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2024-11-28 03:20:57,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:20:57,984 INFO L256 TraceCheckSpWp]: Trace formula consists of 179 conjuncts, 21 conjuncts are in the unsatisfiable core [2024-11-28 03:20:57,987 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:21:02,087 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 217 proven. 36 refuted. 0 times theorem prover too weak. 291 trivial. 0 not checked. [2024-11-28 03:21:02,087 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:21:21,051 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 48 proven. 0 refuted. 0 times theorem prover too weak. 496 trivial. 0 not checked. [2024-11-28 03:21:21,051 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 03:21:21,051 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2127149403] [2024-11-28 03:21:21,052 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2127149403] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-28 03:21:21,052 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 03:21:21,052 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [16] total 28 [2024-11-28 03:21:21,052 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1480956848] [2024-11-28 03:21:21,052 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:21:21,052 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-28 03:21:21,052 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 03:21:21,053 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-28 03:21:21,053 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=160, Invalid=596, Unknown=0, NotChecked=0, Total=756 [2024-11-28 03:21:21,053 INFO L87 Difference]: Start difference. First operand 118 states and 146 transitions. Second operand has 13 states, 13 states have (on average 2.3076923076923075) internal successors, (30), 12 states have internal predecessors, (30), 1 states have call successors, (17), 1 states have call predecessors, (17), 2 states have return successors, (17), 2 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-28 03:21:25,708 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:21:25,708 INFO L93 Difference]: Finished difference Result 124 states and 152 transitions. [2024-11-28 03:21:25,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-28 03:21:25,709 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 2.3076923076923075) internal successors, (30), 12 states have internal predecessors, (30), 1 states have call successors, (17), 1 states have call predecessors, (17), 2 states have return successors, (17), 2 states have call predecessors, (17), 1 states have call successors, (17) Word has length 109 [2024-11-28 03:21:25,710 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:21:25,710 INFO L225 Difference]: With dead ends: 124 [2024-11-28 03:21:25,710 INFO L226 Difference]: Without dead ends: 0 [2024-11-28 03:21:25,711 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 218 GetRequests, 190 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 257 ImplicationChecksByTransitivity, 9.2s TimeCoverageRelationStatistics Valid=180, Invalid=690, Unknown=0, NotChecked=0, Total=870 [2024-11-28 03:21:25,712 INFO L435 NwaCegarLoop]: 89 mSDtfsCounter, 136 mSDsluCounter, 223 mSDsCounter, 0 mSdLazyCounter, 232 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 136 SdHoareTripleChecker+Valid, 312 SdHoareTripleChecker+Invalid, 285 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 232 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2024-11-28 03:21:25,712 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [136 Valid, 312 Invalid, 285 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 232 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2024-11-28 03:21:25,713 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-28 03:21:25,713 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-28 03:21:25,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:21:25,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-28 03:21:25,713 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 109 [2024-11-28 03:21:25,713 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:21:25,713 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-28 03:21:25,714 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 2.3076923076923075) internal successors, (30), 12 states have internal predecessors, (30), 1 states have call successors, (17), 1 states have call predecessors, (17), 2 states have return successors, (17), 2 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-28 03:21:25,714 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-28 03:21:25,714 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-28 03:21:25,716 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-28 03:21:25,720 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5b420e5-3ca2-462d-a45b-8e2fb1028f7c/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Ended with exit code 0 [2024-11-28 03:21:25,917 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5b420e5-3ca2-462d-a45b-8e2fb1028f7c/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 03:21:25,919 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2024-11-28 03:21:25,921 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-28 03:21:35,018 WARN L286 SmtUtils]: Spent 5.71s on a formula simplification. DAG size of input: 302 DAG size of output: 14 (called from [L 162] de.uni_freiburg.informatik.ultimate.lib.proofs.floydhoare.HoareAnnotationComposer.combineInter) [2024-11-28 03:21:42,411 WARN L286 SmtUtils]: Spent 7.13s on a formula simplification. DAG size of input: 307 DAG size of output: 19 (called from [L 162] de.uni_freiburg.informatik.ultimate.lib.proofs.floydhoare.HoareAnnotationComposer.combineInter) [2024-11-28 03:22:02,127 WARN L286 SmtUtils]: Spent 5.25s on a formula simplification. DAG size of input: 272 DAG size of output: 89 (called from [L 162] de.uni_freiburg.informatik.ultimate.lib.proofs.floydhoare.HoareAnnotationComposer.combineInter) [2024-11-28 03:22:04,081 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-28 03:22:04,105 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression [2024-11-28 03:22:04,107 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~stepLocal_1~0 [2024-11-28 03:22:04,107 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression [2024-11-28 03:22:04,107 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Missing case for function ~fp.eq~64 [2024-11-28 03:22:04,108 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~roundNearestTiesToEven [2024-11-28 03:22:04,108 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~roundNearestTiesToEven [2024-11-28 03:22:04,108 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~roundNearestTiesToEven [2024-11-28 03:22:04,108 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~roundNearestTiesToEven [2024-11-28 03:22:04,108 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: currentRoundingMode [2024-11-28 03:22:04,108 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~roundNearestTiesToEven [2024-11-28 03:22:04,109 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: BitVectorAccessExpression [2024-11-28 03:22:04,109 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: BitVectorAccessExpression [2024-11-28 03:22:04,109 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Missing case for function ~fp.eq~64 [2024-11-28 03:22:04,110 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: BitVectorAccessExpression [2024-11-28 03:22:04,110 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: BitVectorAccessExpression [2024-11-28 03:22:04,110 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Missing case for function ~fp.eq~64 [2024-11-28 03:22:04,115 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 03:22:04 BoogieIcfgContainer [2024-11-28 03:22:04,115 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-28 03:22:04,116 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-28 03:22:04,116 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-28 03:22:04,117 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-28 03:22:04,117 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:19:54" (3/4) ... [2024-11-28 03:22:04,120 INFO L146 WitnessPrinter]: Generating witness for correct program [2024-11-28 03:22:04,127 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure assume_abort_if_not [2024-11-28 03:22:04,136 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2024-11-28 03:22:04,137 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2024-11-28 03:22:04,137 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-28 03:22:04,137 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-28 03:22:04,274 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5b420e5-3ca2-462d-a45b-8e2fb1028f7c/bin/uautomizer-verify-aQ6SnzHsRB/witness.graphml [2024-11-28 03:22:04,275 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5b420e5-3ca2-462d-a45b-8e2fb1028f7c/bin/uautomizer-verify-aQ6SnzHsRB/witness.yml [2024-11-28 03:22:04,275 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-28 03:22:04,277 INFO L158 Benchmark]: Toolchain (without parser) took 130691.52ms. Allocated memory was 117.4MB in the beginning and 1.2GB in the end (delta: 1.1GB). Free memory was 91.6MB in the beginning and 1.1GB in the end (delta: -969.2MB). Peak memory consumption was 145.0MB. Max. memory is 16.1GB. [2024-11-28 03:22:04,278 INFO L158 Benchmark]: CDTParser took 1.17ms. Allocated memory is still 117.4MB. Free memory is still 82.6MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 03:22:04,279 INFO L158 Benchmark]: CACSL2BoogieTranslator took 468.83ms. Allocated memory is still 117.4MB. Free memory was 91.4MB in the beginning and 78.2MB in the end (delta: 13.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-28 03:22:04,279 INFO L158 Benchmark]: Boogie Procedure Inliner took 68.20ms. Allocated memory is still 117.4MB. Free memory was 78.0MB in the beginning and 76.5MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 03:22:04,280 INFO L158 Benchmark]: Boogie Preprocessor took 71.02ms. Allocated memory is still 117.4MB. Free memory was 76.5MB in the beginning and 74.2MB in the end (delta: 2.3MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 03:22:04,281 INFO L158 Benchmark]: RCFGBuilder took 508.35ms. Allocated memory is still 117.4MB. Free memory was 74.2MB in the beginning and 59.8MB in the end (delta: 14.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-28 03:22:04,282 INFO L158 Benchmark]: TraceAbstraction took 129405.16ms. Allocated memory was 117.4MB in the beginning and 1.2GB in the end (delta: 1.1GB). Free memory was 59.1MB in the beginning and 1.1GB in the end (delta: -1.0GB). Peak memory consumption was 707.3MB. Max. memory is 16.1GB. [2024-11-28 03:22:04,283 INFO L158 Benchmark]: Witness Printer took 158.79ms. Allocated memory is still 1.2GB. Free memory was 1.1GB in the beginning and 1.1GB in the end (delta: 4.8MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 03:22:04,286 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.17ms. Allocated memory is still 117.4MB. Free memory is still 82.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 468.83ms. Allocated memory is still 117.4MB. Free memory was 91.4MB in the beginning and 78.2MB in the end (delta: 13.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 68.20ms. Allocated memory is still 117.4MB. Free memory was 78.0MB in the beginning and 76.5MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 71.02ms. Allocated memory is still 117.4MB. Free memory was 76.5MB in the beginning and 74.2MB in the end (delta: 2.3MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 508.35ms. Allocated memory is still 117.4MB. Free memory was 74.2MB in the beginning and 59.8MB in the end (delta: 14.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 129405.16ms. Allocated memory was 117.4MB in the beginning and 1.2GB in the end (delta: 1.1GB). Free memory was 59.1MB in the beginning and 1.1GB in the end (delta: -1.0GB). Peak memory consumption was 707.3MB. Max. memory is 16.1GB. * Witness Printer took 158.79ms. Allocated memory is still 1.2GB. Free memory was 1.1GB in the beginning and 1.1GB in the end (delta: 4.8MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~stepLocal_1~0 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Missing case for function ~fp.eq~64 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: currentRoundingMode - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression type not yet supported in backtranslation: BitVectorAccessExpression - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression type not yet supported in backtranslation: BitVectorAccessExpression - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Missing case for function ~fp.eq~64 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression type not yet supported in backtranslation: BitVectorAccessExpression - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression type not yet supported in backtranslation: BitVectorAccessExpression - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Missing case for function ~fp.eq~64 * 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 - PositiveResult [Line: 19]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 51 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 91.1s, OverallIterations: 6, TraceHistogramMax: 17, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 18.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 663 SdHoareTripleChecker+Valid, 10.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 648 mSDsluCounter, 1522 SdHoareTripleChecker+Invalid, 9.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1115 mSDsCounter, 261 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1560 IncrementalHoareTripleChecker+Invalid, 1821 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 261 mSolverCounterUnsat, 407 mSDtfsCounter, 1560 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1113 GetRequests, 953 SyntacticMatches, 1 SemanticMatches, 159 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1791 ImplicationChecksByTransitivity, 30.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=118occurred in iteration=5, InterpolantAutomatonStates: 73, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 6 MinimizatonAttempts, 56 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 69.7s InterpolantComputationTime, 647 NumberOfCodeBlocks, 647 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 1070 ConstructedInterpolants, 17 QuantifiedInterpolants, 12293 SizeOfPredicates, 85 NumberOfNonLiveVariables, 1066 ConjunctsInSsa, 110 ConjunctsInUnsatCore, 10 InterpolantComputations, 5 PerfectInterpolantSequences, 5302/5440 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 103]: Loop Invariant Derived loop invariant: (((((var_1_15 <= 1) && (2 == last_1_var_1_6)) && (var_1_6 == 2)) && (var_1_15 >= 1)) || ((((((2 * var_1_11) < var_1_11) || (var_1_16 == var_1_15)) && (var_1_16 <= 1)) && (var_1_15 >= 1)) && (!((2 * var_1_11) < var_1_11) || (var_1_16 == var_1_15)))) RESULT: Ultimate proved your program to be correct! [2024-11-28 03:22:04,396 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5b420e5-3ca2-462d-a45b-8e2fb1028f7c/bin/uautomizer-verify-aQ6SnzHsRB/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 Writing output log to file Ultimate.log Result: TRUE